Introduction to the Special Issue on Cardiac Anatomy

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2020年全国英语竞赛《A类研究生》初赛试题及答案

2020年全国英语竞赛《A类研究生》初赛试题及答案

2020年全国英语竞赛《A类研究生》初赛试题及答案[问答题]1.Section A (5 marks)Translate the following paragraph into Chinese.Remember to write the answers on the answer sheet. Young people are watching less and less news on television.A research suggests that young people are increasingly using social media as their primary news source.There is evidence that young people are consuming news more actively via social media.It suggests presenting news stories in a less complicated, more accessible way to adivivact young people’s attention.Some people suggested this would be “dumbing down (使……容易理解) content for young audiences”.参考答案:在电视上看新闻的年轻人越来越少。

研究表明,年轻人越来越多地使用社交媒体作为他们主要的新闻来源。

有证据表明,年轻人更多地通过社交媒体看新闻。

这表明要以一种不那么复杂、更容易接触的方式呈现新闻,以吸引年轻人的注意力。

有些人认为这将“便于年轻观众了解新闻内容”。

参考解析:翻译要点:①via通过。

②consume本意为“消耗,消费”,这里指获取新闻。

③in a…way以……的方式。

④在翻译本段时,注意不同的语境下suggest的含义。

csc填报时英文文章

csc填报时英文文章

csc填报时英文文章The Comprehensive Scholarship for Chinese Students (CSC) is a prestigious program that provides financial support for Chinese students to pursue higher education opportunities abroad. As an aspiring student seeking to further my academic and personal growth, the CSC application process has become a significant focus in my educational journey. This essay aims to delve into the importance of the CSC application, the key components and considerations, and the potential impact it can have on my future.Firstly, the CSC scholarship represents a remarkable opportunity for Chinese students like myself to access world-class educational institutions and expand our intellectual horizons. The program's reputation for excellence and the caliber of institutions it supports make it a highly sought-after scholarship. Securing a CSC grant would not only alleviate the financial burden of studying abroad but also open doors to renowned universities and research facilities that may have otherwise been out of reach. This access to premier educational resources can significantly enhance my academic and professional development, ultimately contributing to my long-termgoals and aspirations.In preparing the CSC application, I have dedicated substantial time and effort to ensuring that my submission is comprehensive and compelling. The application process involves several key components, each of which requires careful consideration and attention to detail. One of the most crucial elements is the personal statement, where I have the chance to articulate my academic and personal background, my motivations for pursuing the CSC scholarship, and my future aspirations. Crafting a compelling personal statement that effectively conveys my unique qualities, achievements, and aspirations is of paramount importance, as it serves as a crucial window into my character and potential.Another critical component of the CSC application is the academic transcript and supporting documents. As a diligent and high-achieving student, I have maintained a strong academic record throughout my educational journey. Compiling a comprehensive portfolio of my academic achievements, including transcripts, certificates, and any relevant research or project work, is essential in demonstrating my intellectual capabilities and commitment to academic excellence. These documents not only showcase my academic prowess but also provide valuable insights into my areas of interest and potential contributions to the chosen field of study.In addition to the academic components, the CSC application also requires applicants to submit a detailed study plan outlining their proposed course of study, research interests, and long-term career goals. This component allows me to articulate how the chosen program of study aligns with my academic and professional aspirations, and how the CSC scholarship would enable me to achieve these goals. Crafting a well-structured and thoughtful study plan requires a deep understanding of the program, the institution, and the potential synergies between my interests and the academic offerings.Furthermore, the CSC application process often involves additional requirements, such as language proficiency tests, letters of recommendation, and interviews. Preparing for these components requires meticulous planning and execution. Demonstrating my language proficiency, whether in English or the language of the host country, is crucial in showcasing my readiness to thrive in an international academic environment. Securing strong letters of recommendation from respected academic or professional references can also significantly bolster my application, as these testimonials provide valuable insights into my character, abilities, and potential contributions.The interview stage of the CSC application process presents an opportunity for me to further articulate my qualifications, passion,and commitment to the program. I understand the importance of being well-prepared, articulate, and poised during the interview, as this interaction allows the selection committee to gain a deeper understanding of my motivations, problem-solving skills, and overall suitability for the scholarship.Ultimately, the CSC application process is a multifaceted and highly competitive endeavor. However, I am determined to approach it with unwavering dedication and a strategic mindset. I recognize that the successful completion of this application can have a profound impact on my educational and professional trajectory. Securing the CSC scholarship would not only alleviate the financial burden of studying abroad but also open doors to world-class institutions, cutting-edge research opportunities, and a global network of scholars and professionals.Beyond the immediate benefits, the CSC scholarship has the potential to shape my long-term aspirations and contribute to my personal and professional growth. With the support of the CSC, I can pursue innovative research, engage in cross-cultural exchange, and develop a deeper understanding of global issues. These experiences can ultimately position me as a future leader, ready to tackle complex challenges and make meaningful contributions to my field of study and the broader global community.In conclusion, the CSC application process represents a significant milestone in my academic and personal journey. Through meticulous preparation, strategic planning, and a genuine passion for learning and growth, I am committed to crafting a compelling application that showcases my academic excellence, leadership potential, and unwavering commitment to making a positive impact on the world. The CSC scholarship would not only be a transformative opportunity for me but also a testament to my dedication and the pursuit of knowledge that transcends borders.。

学术英语(社科)-Unit1含答案ppt

学术英语(社科)-Unit1含答案ppt

Unit 1
Decision-Making Behaviors in Economic Activities
Text A
Critical reading and thinking
What is the author trying to prove?
What is the author assuming I will agree with?
Do you agree with the author?
Unit 1
Decision-Making Behaviors in Economic Activities
Critical reading and thinking
Activities
Example 2: water vs. diamond
Why is water so cheap, while diamonds are so
expensive?
water
Necessary for survival
diamond
Unit 1
Decision-Making Behaviors in Economic Activities
Text A
Critical reading and thinking
Example 3: a seat belt law
American laws require seat belts as standard equipment on new cars.
Unit 1
Decision-Making Behaviors in Economic Activities
Text A
Key terms
marginal cost: 边际成本 the additional cost from an increase in an activity

An Introduction to Copulas with Applications

An Introduction to Copulas with Applications

An Introduction to Copulas with ApplicationsSvenska Aktuarief¨o reningenStockholm2004-03-02Boualem Djehiche,KTH&Skandia LivHenrik Hult,University of CopenhagenI IntroductionII Introduction to copulasIII Measuring dependenceIV ApplicationsE-mail:boualem.djehiche@skandia.se,hult@math.ku.dkINTRODUCTIONStatistical models for portfolios in insurance andfinance •Understanding the uncertainty underlying variablitiy in claim sizes and pricefluctuations offinancial assets.•Measuring the risk of insurance/financial portfolios held by departments within the company or the entire company.•Take actions/decisions based on risk preferences.c 2004(B.Djehiche,H.Hult)1From observed data to measures of risk/pricing(1)Data collection.Observing insurance losses orfinancial losses.(2)Model building.Fit a statistical model to the observed data.(3)Compute risk.Evaluate a measure of the risk based on thefitted statistical model.(4)Pricing of insurance/financial contracts.c 2004(B.Djehiche,H.Hult)2Popular measures of risk•Value-at-Risk(VaR)Value-at-Risk at the level p(p=0.99)is the smallest number x such that the probability of losing more than x is less than1−p.•Expected Shortfall(ES)Expected Shortfall at the level p is the average size of thelosses that exceed VaR at level p.c 2004(B.Djehiche,H.Hult)3Value-at-Risk and Expected Shortfallc 2004(B.Djehiche,H.Hult)4Portfolio modelling(1)Data collection.(2)Build portfolio model.(3)Compute the loss distribution for the portfolio.(4)Compute measures of pute premiums of insurance contracts.c 2004(B.Djehiche,H.Hult)5Dependence modellingConsider the distribution of claims from two types of insurance, e.g.storm andflooding.•Is it enough to know the individual claim size distribution?•What if the claims are somehow dependent?c 2004(B.Djehiche,H.Hult)6Dependence modelling•Scatter plot of the two types of claims with different depen-dence structure but identical marginals.•Which effect does the dependence structure have on the dis-tribution of large losses for the portfolio?c 2004(B.Djehiche,H.Hult)7Why advanced dependence modelling?•New complex products in insurance andfinance result in port-folios with complex dependence structures.•Need for multivariate models with moreflexibility than the multivariate normal distribution.•Correlation is not a satisfactory dependence measure to cap-ture the observed advanced dependence structures.•Wrong dependence structure may lead to severe underesti-mation of the portfolio risk.•Marginals+Dependence=Portfolio modelc 2004(B.Djehiche,H.Hult)8INTRODUCTION TO COPULASBrief historical background-Copulas•The basic idea of a copula is to separate the dependence and the marginal distributions in a multivariate distribution(portfolio model).•1940’s:Hoeffding studies properties of multivariate distribu-tions•1959:The word copula appears for thefirst time(Sklar1959).•1998:Academic literature on how to use copulas in risk man-agement.•2004:Some insurance companies andfinancial institutions have started to use copulas as a risk management tool.c 2004(B.Djehiche,H.Hult)9Copula-a definitionDefinition:A d-dimensional copula is a distribution function on [0,1]d with standard uniform marginal distributions.2Example1:C(u,v)=uv.If U∼U(0,1)and V∼U(0,1) are independent,thenC(u,v)=uv=P(U≤u)P(V≤v)=P(U≤u,V≤v)=H(u,v), where H(u,v)is the distribution function of(U,V).C is called the independence copula.c 2004(B.Djehiche,H.Hult)10Independence copulac 2004(B.Djehiche,H.Hult)11A generic exampleIf(X,Y)is a pair of random variables with distribution function H(x,y)and marginal distributions F X(x)and F Y(y)respectively, then U=F X(X)∼U(0,1)and V=F Y(Y)∼U(0,1)and the distribution function of(U,V)is a copula.P(U≤u)=P(F X(X)≤u)=P(X≤F−1X (u))=F X(F−1X(u))=u.andC(u,v)=P(U≤u,V≤v)=P(X≤F−1X (u),Y≤F−1Y(v))=H(F−1X (u),F−1Y(v)).c 2004(B.Djehiche,H.Hult)12Illustration of Sklar’s theoremLeft:Simulation of bivariate normal distribution.Right:The associated copula.c 2004(B.Djehiche,H.Hult)13Sklar’s TheoremTheorem Let H be a joint df with marginal dfs F1,...,F d Then there exists a copula C such thatH(x1,...,x d)=C(F1(x1),...,F d(x d)).(1) Conversely,if C is a copula and F1,...,F d are distribution func-tions,then H defined by(1)is a joint distribution function with marginal dfs F1,...,F d.c 2004(B.Djehiche,H.Hult)14Important consequencesH(x1,...,x d)=C(F1(x1),...,F d(x d))•A copula describes how the marginals are tied together in the joint distribution.•In this way the joint df is decomposed into the marginal dfs and a copula.•The marginal dfs and the copula can be estimated separately.•Given a copula we can obtain many multivariate distributions by selecting different marginal dfs,H(x1,...,x d)=C(G1(x1),...,G d(x d))c 2004(B.Djehiche,H.Hult)15IllustrationLeft:Gaussian copula with different marginals.Middle:t2copula with different marginals.Right:Gumbel copula with different marginals.c 2004(B.Djehiche,H.Hult)16Example of copulasAll simulations with standard normal marginal distributions.Top left:Gumbel copula;Top right:Normal copula;Down left:t5copula;Down right:Clayton copula.c 2004(B.Djehiche,H.Hult)17MEASURING DEPENDENCECorrelationLinear correlation:(X,Y)=E((X−E(X))(Y−E(Y))),(X,Y)=1n−1ni=1(x i−x)(y i−y).•Sensitive to outliers.•Measures the“average dependence”between X and Y.•Invariant under strictly increasing linear transformations.c 2004(B.Djehiche,H.Hult)18Examples••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••GaussianX1Y 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224681012142468101214Left:Samples from two distributions with standard normal mar-gins, =0.8Right:Samples from two distributions with Gamma(3,1)marginal dfs,linear correlation =0.5.c2004(B.Djehiche,H.Hult)19Rank correlationTwo pairs(x,y)and( x, y)are said to be concordant if(x− x)(y− y)>0and discordant if(x− x)(y− y)<0.Kendall’s tau:τ(X,Y)=P((X− X)(Y− Y)>0)−P((X− X)(Y− Y)<0) where( X, Y)is an independent copy of(X,Y).It is estimated byτ(X,Y)=#concordant pairs−#discordant pairs#pairs.c 2004(B.Djehiche,H.Hult)20Properties of Kendall’s tau•Insensitive to outliers.•Measures the“average dependence”between X and Y.•Invariant under strictly increasing transformations.•Kendall’s tau depends only on the copula of(X,Y).c 2004(B.Djehiche,H.Hult)21Emphasizing the 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2-4-2024-4-2024Left:Samples from two distributions with standard normal mar-gins,and τ=0.6.c2004(B.Djehiche,H.Hult)22Tail dependenceDefinition:Let(X,Y)be a random vector with marginal dis-tribution functions F X and F Y.The coefficient of upper tail dependence of(X,Y)is defined asλU(X,Y)=limu 1P(Y>F−1Y(u)|X>F−1X(u)),provided that the limitλU∈[0,1]exists.The coefficient of lower tail dependence is defined asλL(X,Y)=limu 0P(Y≤F−1Y(u)|X≤F−1X(u)),provided that the limitλL∈[0,1]exists.IfλU>0(λL>0),then we say that(X,Y)has upper(lower)tail dependence.2 c 2004(B.Djehiche,H.Hult)23Illustration of upper tail 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2-4-2024-4-2024Left:Samples from two distributions with standard normal mar-gins,τ=0.6.The left distribution (normal copula)has λU (X,Y )=0and the right distribution (t 2copula)has λU (X,Y )=0.3.c2004(B.Djehiche,H.Hult)25ExampleLeft:Samples from two distributions with t3margins,τ=0.6. The left distribution(normal copula)hasλU(X,Y)=0and the right distribution(t2copula)hasλU(X,Y)=0.3.c 2004(B.Djehiche,H.Hult)26APPLICATIONSApplications of copulas in risk management•Modelfitting.Finding a reasonable model for computing risk measures.•Stress testing.Under given conditions on marginal dfs and measures of dependence we can change copula to understand the sensitivity of the portfolio risk with respect to the depen-dence structrure.•Dynamicfinancial analysis.Copulas are useful when building large simulation models for long time horizons.c 2004(B.Djehiche,H.Hult)27An example from insurance•Portfolio with n risks(X1,...,X n)representing potential losses in different lines of business.•Company seeks protection against simultaneous big losses in different lines of business.•Reinsurance contract:payoutf((X i,k i);i=1,...,l)=li=11{Xi>k i}li=1(X i−k i).c 2004(B.Djehiche,H.Hult)28Example cont.•The reinsurer will price the contract by computing E(f((X i,k i);i= 1,...,l)).•For this the reinsurer needs the joint distribution H(x1,...,x l) which is difficult to obtain.In particular,data for big losses are rare.•He may be able to estimate marginal dfs and pairwise rank correlations.•Typically,Kendall’s tau estimates can be transformed into a estimates of the copula parameters.c 2004(B.Djehiche,H.Hult)29Example•Deciding upon a class of copulas(e.g.Normal or Gumbel)a calculation of the price of the contract can be performed.Pos-sibly by simulation.•The choice of copula family is crucial for pricing the contract.•Uncertainty in choosing the“right”copula family.•Choice of copula family depend on the partcular application and the underlying loss causing mechanism.c 2004(B.Djehiche,H.Hult)30Example •Consider payout probabilities off((X i,k i);i=1,...,l)=li=11{Xi>k i}li=1(X i−k i).for l=5,X i∼LN(0,1),τ(X i,X j)=0.5•Mirrored Clayton copula and Gaussian copula.c 2004(B.Djehiche,H.Hult)31SimulationsLeft:Payout probabilities for the reinsurance contract with nor-mal copula(solid)and mirrored Clayton copula(dashed). Right:Qoutient between payout probabilities(Clayton/Normal).c 2004(B.Djehiche,H.Hult)32Price of the reinsurance contractLeft:Price for the reinsurance contract with normal copula (solid)and mirrored Clayton copula(dashed).Right:Qoutient between prices(Clayton/Normal).c 2004(B.Djehiche,H.Hult)33References•Embrechts,P.,Lindskog,F.,McNeil A.(2003):Modelling De-pendence with Copulas and Applications to Risk Management. In:Handbook of Heavy Tailed Distributions in Finance,ed.S. Rachev,Elsevier,Chapter8,pp.329-384.Also available at: www.math.ethz.ch/∼baltes/ftp/papers.html•Embrechts,P.,McNeil,A.,Straumann,D.(2002)Correlation and dependence in risk management:properties and pitfalls. In:Risk Management:Value at Risk and Beyond,ed.M.A.H. Demptser,Cambridge University Press,Cambridge,pp.176-223.Also available at:www.math.ethz.ch/∼baltes/ftp/papers.html •Joe,H.(1997):Multivariate Models and Dependence Coc-nepts.Chapman&Hall,London.•Nelsen,R.(1999):An introduction to copulas.Springer,New York.c 2004(B.Djehiche,H.Hult)34。

英语作文书刊前言

英语作文书刊前言

英语作文书刊前言In the journey of mastering the English language, writing compositions serves as a vital bridge connecting thoughts with expressions.It is with this conviction that we have compiled this collection of English essays, aiming to provide learners with a diverse array of topics, styles, and perspectives.Theforeword of this publication is not merely an introduction but a invitation to explore the joys and challenges of essay writing.在英语学习的征途中,作文无疑是连接思维与表达的重要桥梁。

正是基于这样的信念,我们编纂了这本英语作文集,旨在为学习者提供丰富多样的主题、风格和观点。

本书的前言不仅仅是一段介绍,更是一份邀请,邀请您共同探索作文创作的乐趣与挑战。

Variety is the spice of life, and the same applies to essay writing.Within these pages, you"ll encounter a potpourri of genres, ranging from narrative to argumentative, from descriptive to reflective.Each piece is meticulously selected to ignite your creativity and broaden your horizon, encouraging you to find your unique voice amidst the sea of words.生活需要多样的调味品,作文创作亦是如此。

Introduction_to_the_Special_Issue

Introduction_to_the_Special_Issue
Introduction to the Special Issue
Yang Guorong
Professor of philosophy, East China Normal University
Wang Yangming’s philosophy plays an important role in the development of Chinese philosophy. Taking the heart-mind (xin) as the foundation, Wang not only makes an important shift in philosophical horizons, but also demonstrates his endeavor to explore the nature of the world and his concern with human values. Needless to say, designating the heart-mind as the original substance betrays a speculative inclination; however, its underlying purpose is to call attention to how the external world manifests itself in humanity. Wang’s emphasis on the individual consciousness constitutes an important dimension of his philosophical inquiry. Wang believes the individual’s self-awareness shows up as innate knowledge (liangzhi), which is primarily related to the being of the self and serves as the source of personal qualities. Speci cally, innate knowledge is manifested as the individual’s moral consciousness, which is the basis for making ethical choices and moral evaluations. Wang’s epistemological concern, with the heart-mind as the substance, is combined with his sense of responsibility, as entailed by innate knowledge, which leads to a sentiment about the world best captured by the assertion that “the myriad things and I form one body.” is assertion has two aspects. First, there is no distinction between others and the self. Second, there is no distinction between things and the self. The first aspect addresses the interaction between the self and others, and the second concerns the unity of the self and the external world. Wang’s theory of the unity of knowledge and action further lays the foundation for putting his assertion into e ect.

issue authenticating ua cloud

issue authenticating ua cloud

issue authenticating ua cloudIssue Authenticating UA CloudIntroduction:Authenticating UA Cloud is essential to ensure the secure access and use of this cloud computing service. However, some users may encounter issues while trying to authenticate UA Cloud. In this article, we will discuss step-by-step instructions to troubleshoot and resolve these authentication issues.1. Understanding UA Cloud Authentication:Before diving into the troubleshooting process, let's briefly understand how UA Cloud authentication works. UA Cloud uses various authentication methods, such as username-password authentication, two-factor authentication (2FA), and single sign-on (SSO). Each user is provided with a unique set of credentials to log in to the cloud service.2. Identify the Issue:The first step in resolving the authentication issue is to identify the problem. There can be several reasons for authentication failures, including incorrect credentials, issues with network connectivity,or problems with the authentication server. It's important to determine the root cause to address the problem effectively.3. Verify Credentials:The most common cause of authentication failure is incorrect credentials. Ensure that you have entered the correct username and password combination. Take note of character case sensitivity and any special characters in the password. If you are still unable to authenticate, consider resetting your password through the password recovery process provided by UA Cloud.4. Check Network Connectivity:A stable internet connection is crucial for successful authentication. Check if you can access other websites or services to ensure your network connectivity is working fine. If you are facing network connectivity issues, contact your internet service provider or IT department for assistance.5. Clear Browser Cache and Cookies:Sometimes, cached data or cookies stored in your web browser can interfere with the authentication process. Clearing these can often resolve authentication issues. To clear cache and cookies, goto your browser settings, locate the "Clear Browsing Data" option, and select the appropriate options for clearing cookies and cache.6. Disable Extensions or Add-ons:Browser extensions or add-ons may sometimes conflict with authentication processes. Temporarily disable any extensions or add-ons you have installed, and then try authenticating again. If the authentication is successful after disabling them, you may need to investigate further and determine which extension is causing the conflict.7. Check Authentication Server Status:If multiple users are experiencing authentication issues, the problem could be with the UA Cloud authentication server itself. Check the status of the authentication server by visiting the UA Cloud service status page or contacting the UA Cloud support team. If there is a known issue with the authentication server, you will need to wait until it is resolved.8. Enable Two-Factor Authentication (2FA):To enhance security, UA Cloud offers the option of enabling two-factor authentication. If you have enabled 2FA, ensure you havefollowed the correct authentication process, such as receiving an authentication code on your mobile device, or using an authentication app like Google Authenticator. In case of issues, verify that your device is connected to the internet and correctly synchronized with the authentication service.9. Contact Support:If you have followed all the above steps and are still unable to authenticate UA Cloud successfully, it's time to reach out to the UA Cloud support team. Provide them with details about the steps you have taken, the specific error messages you encountered, and any other relevant information. Support personnel should be able to guide you further and help resolve the authentication issue.Conclusion:Authenticating UA Cloud is crucial for a secure and seamless user experience. By following the step-by-step troubleshooting process outlined in this article, users can overcome authentication issues that may arise. Remember to verify credentials, check network connectivity, clear cache and cookies, disable extensions, check authentication server status, enable two-factor authentication ifapplicable, and finally, seek support if needed. With these measures, users can efficiently resolve authentication issues and enjoy all the benefits offered by UA Cloud.。

Pearson Edexcel International Advanced Level信息技术Un

Pearson Edexcel International Advanced Level信息技术Un

*P62716A0116*Turn overCandidate surname Other namesTotal MarksCentre Number Candidate NumberPlease check the examination details below before entering your candidate informationPearson EdexcelInternationalAdvanced LevelYou do not need any other materials.Information TechnologyInternational Advanced LevelUnit 1Morning (Time: 2 hours)Paper Reference WIT11/01Thursday 23 May 2019P62716A©2019 Pearson Education Ltd.1/1/1/1/1/1Instructions• Use black ink or ball-point pen.• Fill in the boxes at the top of this page with your name,centre number and candidate number.• Answer all questions.• Answer the questions in the spaces provided– there may be more space than you need.Information• The total mark for this paper is 80.• The marks for each question are shown in brackets– use this as a guide as to how much time to spend on each question.• Calculators are not allowed.Advice• Read each question carefully before you start to answer it.• Try to answer every question.• Check your answers if you have time at the end.*P62716A0216*2*P62716A0316*Turn over3Digital devices, such as Sarah’s TV, have features to assist those with disabilities.(c) (i) Describe two features of a smart TV’s user interface that assist people with avisual impairment.(4)1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (ii) Explain one moral/ethical reason why manufacturers of digital devices includeaccessibility features in their products.(3)................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................(Total for Question 1 = 12 marks)*P62716A0416*42 Hilmi Megat has a personal website.Hilmi uses the website to tell people about the places that he has travelled to.(a) The website’s domain name is and the IP address is 203.0.113.15.When someone wants to visit the website, they enter the domain name into their browser address bar. Describe how the connection is made to IP address 203.0.113.15.(3)........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Hilmi uses a web-hosting company to host and support his website.The company provides software tools to make both static and dynamic web pages.(b) Give three differences between static and dynamic web pages.(3)1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................2 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................3 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................*P62716A0516*Turn over5Hilmi’s website only has static web pages. He is thinking of converting the website into a dynamic one. (c) Discuss the advantages of using dynamic web pages instead of static web pages.(6)........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................(Total for Question 2 = 12 marks)*P62716A0616*6*P62716A0716*Turn over7 Complete the table to show the names for the labels A–F.(6)LabelNameABCDEF*P62716A0816*8(b) A customer wants to buy a replacement light bulb for a car. The bulb is no longermanufactured. The car dealer can order one from a specialist supplier. A memberof staff uses a specialist database to find suppliers of the bulb.The database includes these tables. Sample data is included.tbl_suppliersupplierID name telephoneS784Bloggs Rare Parts01521665717S131Vintage Spares01265775836S461Bulbs and Batteries01831231445tbl_bulbbulbID manufacturer partnumber voltage supplierID stocklevel watts LA563Lucas Electrical LLB71Ba15d 122784436 LA517Lucas Electrical LLB187APG20/4121154924 LA461Osram581 PY21W 1218871221 The manufacturer of the bulb is Lucas Electrical. The member of staff can onlymake out LL~~80 1157 BAY~~D of the part number:where the symbol ~indicates an unreadable character.*P62716A0916*Turn over9(i) Write an SQL query that will display names and contact details of supplierswho are likely to have the bulb in stock. List the suppliers in alphabeticalorder.(6)................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (ii) Explain one advantage for the car dealer of having access to the specialistdatabase.(3)................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................(Total for Question 3 = 15 marks)*P62716A01016*10 4 The Open Systems Interconnection (OSI) model is a 7-layer model of communicationsprotocols. It is used to connect computers over the internet.Data passing through the layers is encapsulated. (a) Describe the process of encapsulation in this context.(3)............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. (b) Explain the OSI model using a labelled diagram.(6)(c) Transmission Control Protocol/Internet Protocol (TCP/IP) is a 4-layer model ofcommunications protocols.(i) Explainone difference between the TCP/IP model and the OSI model. Do not include details of layer names or functions.(4) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... ....................................................................................................................................................................................................................................................................................(ii) Most internet traffic uses Internet Protocol version 4 (IPv4) but this is beingreplaced by IPv6.Givetwo reasons why IPv6 is replacing IPv4.(2)1 ................................................................................................................................................................................................................................................................................ ....................................................................................................................................................................................................................................................................................2 ................................................................................................................................................................................................................................................................................ ....................................................................................................................................................................................................................................................................................(Total for Question 4 = 15 marks)。

专题报道英语作文模板及范文

专题报道英语作文模板及范文

专题报道英语作文模板及范文英文回答:Special Report: How to Write an Article。

Introduction。

A special report is an in-depth, investigative piece of journalism that explores a particular topic or issue. Special reports are typically published in magazines, newspapers, or online media outlets. They are often written by experienced journalists who have spent months or even years researching and reporting on the topic.Structure of a Special Report。

Special reports typically follow a standard structure:Introduction: The introduction provides an overview of the topic and explains the importance of the issue. It alsoprovides a brief summary of the research that was conducted.Body: The body of the report presents the findings of the research. This section should be well-organized andeasy to read. It should include specific examples and case studies to illustrate the findings.Conclusion: The conclusion summarizes the findings of the report and provides recommendations for action. It should also provide a call to action for readers.Writing a Special Report。

新视野大学英语(第二版)读写教程-3-课后习题答案unit-unit7

新视野大学英语(第二版)读写教程-3-课后习题答案unit-unit7

Unit 1III1 beneath2 disguised3 whistles4 restrain5 grasp6 longing7 praying8 faithful9 pledge 10 drainIV1 tell …on you2 track down3 work it out4 picking on me5 reckoned with6 call on7 on his own8 get through9 in disguise 10 revolves around VG O D I K L B F A NVI1 advise2 level3 problems4 necessity5 skills6 experience7 solution8 value9 tool 10 mannerVII1 air-conditioned(装空调的;有冷气的)2 handmade(手工制作的)3 thunderstruck(非常吃惊的)4 heartfelt(衷心的;诚挚的)5 data-based (基于数据的)6 self-employed(自主经营的)7 custom-built(定制的;定做的)8 weather-beaten(饱经风霜的)VIII1. well-informed(对……非常熟悉的)2 new-found(新获得的)3hard-earned(辛苦挣得的)4 soft-spoken(说话温柔的)5 newly-married(新婚的)6 widely-held(普遍认为的)7 well-meant(出于好意的)8 well-educated(受过良好教育的)IX1 no matter how different it may seem form any other substance2 no matter what a woman tries to do to improve her situation3 no matter what excuse he gives4 no matter what anyone else may think5 no matter how they rewrite historyX1 just as we gained fame in victory, we lost nothing in defeat2 just as the head teacher plays a significant role in the school, Jane plays a significant role f leader in the classroom.3 whoever was out there obviously couldn’t see him just as he couldn’t see them.4 she has been searching all her life for the perfect chocolate just as I have been searching for the perfect beer.5 you can make those kinds of parisons just as you were doing the analyses a minute ago.XI1. No matter how experienced a speaker you are, and how well you have prepared your speech, you will have difficulty making a speech at such a noisy reception.2. Just as all his sister’s friends cared about him, Jimmy cared about them.3. Car manufacturers stamp a vehicle identification number at several places on new cars to help track down stolen vehicles.4. If you dare tell on me when the teacher gets back I won’t say a word to you any more.5. Some elderly people prefer to live on their own while the great majority choose to live with their children.6. Here is something that needs to be reckoned with: how to get the necessary finances to establish the pany.XII1. 每当有人帮了你,无论事情大小,无论他地位高低,你都应该对他说声“谢谢”。

向别人推荐专业英语作文

向别人推荐专业英语作文

向别人推荐专业英语作文Title: The Allure of Linguistics: Why You Should Consider Studying Language.In the vast and ever-evolving landscape of academic disciplines, Linguistics stands out as a unique and fascinating field. It delves into the heart of human communication, exploring the structures, functions, and evolution of language. If you are fascinated by the power of words, the diversity of human languages, or the complexities of communication, Linguistics might be the perfect major for you.1. The Breadth and Depth of Linguistics.Linguistics is an interdisciplinary field that intersects with various other subjects, such as anthropology, psychology, computer science, and sociology. It offers a comprehensive understanding of language, from its historical development to its social and culturalcontext. Studying Linguistics means delving into the mechanics of language—its sounds, words, phrases, and grammar—as well as the ways it shapes our thoughts, behaviors, and interactions.2. The Global Perspective.In an increasingly interconnected world, the ability to communicate effectively across cultures and languages is invaluable. Linguistics majors gain a unique perspective on global issues and dynamics, as they learn to appreciate the diverse ways in which people express themselves. This skill is not only beneficial for international relations and business but also for personal growth and cultural understanding.3. The Creative Outlet.Linguistics fosters creativity in various forms. Whether it's through poetry, songwriting, or even language invention, Linguistics majors have the opportunity to express themselves artistically through language. Theylearn to appreciate the rhythmic patterns, melodies, and harmonies of words, unlocking new dimensions of creativity.4. The Practical Applications.Linguistics is not just about understanding languagefor its own sake; it also has numerous practical applications. Linguists are involved in fields like speech therapy, language translation, and even forensics, where they analyze language patterns to solve crimes. With a Linguistics degree, you can find yourself working indiverse industries like education, media, government, and technology.5. The Lifelong Learning Journey.Studying Linguistics is a lifelong journey of discovery. Language is constantly evolving, and Linguistics majors are always on the lookout for new patterns, trends, and insights. This field encourages curiosity and a passion for learning, making it a rewarding and fulfilling academic pursuit.6. The Impact on Society.Linguistics has a profound impact on society. It can help us understand historical events, cultural identities, and social movements. By examining the language used in different communities and contexts, Linguists can gain insights into the values, beliefs, and aspirations of people. This understanding can lead to more inclusive and equitable societies that value the diversity of human expressions.In conclusion, Linguistics is an exciting and rewarding field that offers a unique perspective on human communication. It combines the theoretical understanding of language structures with practical applications in various fields. If you are passionate about language, culture, and communication, Linguistics might be the perfect major for you. Embark on this fascinating journey and unlock the power of words!。

A VERY SHORT INTRODUCTION

A VERY SHORT INTRODUCTION

A VERY SHORT INTRODUCTION Introduction:In this very short introduction, we will explore the importance of concise and informative introductions and how they set the stage for the rest of a document. We will discuss the key elements that should be included in an introduction and why it is crucial to engage the reader right from the start. From the purpose of an introduction to tips for crafting an impactful opening, this article will provide a step-by-step guide to writing an effective introduction.Why are introductions important?Introductions play a crucial role in any document, whether it be an essay, research paper, report, or even an article like this one. They serve as a roadmap for the reader, providing them with the necessary background information on the topic, context, and purpose of the document. A well-crafted introduction grabs the reader's attention, sets the tone, and establishes the credibility of the author.Key elements of an introduction:1. Hook: The opening sentence or two should captivate the reader's attention and make them want to continue reading. This can be done by posing a thought-provoking question, sharing an intriguing fact or statistic, or using a powerful quote.2. Background information: Provide some context and background information on the topic to give the reader a clear understanding of what will be discussed in the document. This can include historical information, definitions of key terms, or an overview of previous research on the topic.3. Thesis statement: The introduction should convey the main argument or purpose of the document. This can be done through a clear and concise thesis statement that outlines the main points or claims that will be discussed in the document.Tips for writing an effective introduction:1. Keep it concise: Remember, this is a very short introduction, so it is important to keep it brief and to the point. Avoid unnecessary details or tangents that do not directly contribute to the main purpose of the document.2. Be clear and specific: Make sure the reader understands exactly what the document will cover. Use clear and concise language to convey your message and avoid any ambiguity.3. Use active language: Engage the reader by using active language and avoiding passive voice. This will make your writing more dynamic and compelling.4. Revise and edit: Once you have written the introduction, take the time to revise and edit it. Make sure your sentences flow smoothly and that your ideas are coherent. Check for any grammatical or spelling errors that might detract from the overall quality of your writing.Conclusion:In conclusion, a well-crafted introduction is essential for any document. It sets the stage for the rest of the content, engages the reader, and provides them with the necessary information to understand the purpose of the document. By following the key elements and tips discussed in this article, you can write an effective introduction that will captivate your reader and make them eager to delve further into yourdocument. Remember to keep it concise, clear, and impactful, and your introduction will set the tone for a successful piece of writing.。

AnIntroductionto...

AnIntroductionto...

Explorations in Quantum Computing, Colin P. Williams, Springer, 2010, 1846288878, 9781846288876, . By the year 2020, the basic memory components of a computer will be the size of individual atoms. At such scales, the current theory of computation will become invalid. 'Quantum computing' is reinventing the foundations of computer science and information theory in a way that is consistent with quantum physics - the most accurate model of reality currently known. Remarkably, this theory predicts that quantum computers can perform certain tasks breathtakingly faster than classical computers and, better yet, can accomplish mind-boggling feats such as teleporting information, breaking supposedly 'unbreakable' codes, generating true random numbers, and communicating with messages that betray the presence of eavesdropping. This widely anticipated second edition of Explorations in Quantum Computing explains these burgeoning developments in simple terms, and describes the key technological hurdles that must be overcome to make quantum computers a reality. This easy-to-read, time-tested, and comprehensive textbook provides a fresh perspective on the capabilities of quantum computers, and supplies readers with the tools necessary to make their own foray into this exciting field. Topics and features: concludes each chapter with exercises and a summary of the material covered; provides an introduction to the basic mathematical formalism of quantum computing, and the quantum effects that can be harnessed for non-classical computation; discusses the concepts of quantum gates, entangling power, quantum circuits, quantum Fourier, wavelet, and cosine transforms, and quantum universality, computability, and complexity; examines the potential applications of quantum computers in areas such as search, code-breaking, solving NP-Complete problems, quantum simulation, quantum chemistry, and mathematics; investigates the uses of quantum information, including quantum teleportation, superdense coding, quantum data compression, quantum cloning, quantum negation, and quantumcryptography; reviews the advancements made towards practical quantum computers, covering developments in quantum error correction and avoidance, and alternative models of quantum computation. This text/reference is ideal for anyone wishing to learn more about this incredible, perhaps 'ultimate,' computer revolution. Dr. Colin P. Williams is Program Manager for Advanced Computing Paradigms at the NASA Jet Propulsion Laboratory, California Institute of Technology, and CEO of Xtreme Energetics, Inc. an advanced solar energy company. Dr. Williams has taught quantum computing and quantum information theory as an acting Associate Professor of Computer Science at Stanford University. He has spent over a decade inspiring and leading high technology teams and building business relationships with and Silicon Valley companies. Today his interests include terrestrial and Space-based power generation, quantum computing, cognitive computing, computational material design, visualization, artificial intelligence, evolutionary computing, and remote olfaction. He was formerly a Research Scientist at Xerox PARC and a Research Assistant to Prof. Stephen W. Hawking, Cambridge University..Quantum Computer Science An Introduction, N. David Mermin, Aug 30, 2007, Computers, 220 pages. A concise introduction to quantum computation for computer scientists who know nothing about quantum theory..Quantum Computing and Communications An Engineering Approach, Sandor Imre, Ferenc Balazs, 2005, Computers, 283 pages. Quantum computers will revolutionize the way telecommunications networks function. Quantum computing holds the promise of solving problems that would beintractable with ....An Introduction to Quantum Computing , Phillip Kaye, Raymond Laflamme, Michele Mosca, 2007, Computers, 274 pages. The authors provide an introduction to quantum computing. Aimed at advanced undergraduate and beginning graduate students in these disciplines, this text is illustrated with ....Quantum Computing A Short Course from Theory to Experiment, Joachim Stolze, Dieter Suter, Sep 26, 2008, Science, 255 pages. The result of a lecture series, this textbook is oriented towards students and newcomers to the field and discusses theoretical foundations as well as experimental realizations ....Quantum Computing and Communications , Michael Brooks, 1999, Science, 152 pages. The first handbook to provide a comprehensive inter-disciplinary overview of QCC. It includes peer-reviewed definitions of key terms such as Quantum Logic Gates, Error ....Quantum Information, Computation and Communication , Jonathan A. Jones, Dieter Jaksch, Jul 31, 2012, Science, 200 pages. Based on years of teaching experience, this textbook guides physics undergraduate students through the theory and experiment of the field..Algebra , Thomas W. Hungerford, 1974, Mathematics, 502 pages. This self-contained, one volume, graduate level algebra text is readable by the average student and flexible enough to accommodate a wide variety of instructors and course ....Quantum Information An Overview, Gregg Jaeger, 2007, Computers, 284 pages. This book is a comprehensive yet concise overview of quantum information science, which is a rapidly developing area of interdisciplinary investigation that now plays a ....Quantum Computing for Computer Scientists , Noson S. Yanofsky, Mirco A. Mannucci, Aug 11, 2008, Computers, 384 pages. Finally, a textbook that explains quantum computing using techniques and concepts familiar to computer scientists..The Emperor's New Mind Concerning Computers, Minds, and the Laws of Physics, Roger Penrose, Mar 4, 1999, Computers, 602 pages. Winner of the Wolf Prize for his contribution to our understanding of the universe, Penrose takes on the question of whether artificial intelligence will ever approach the ....Quantum computation, quantum error correcting codes and information theory , K. R. Parthasarathy, 2006, Computers, 128 pages. "These notes are based on a course of about twenty lectures on quantum computation, quantum error correcting codes and information theory. Shor's Factorization algorithm, Knill ....Introduction to Quantum Computers , Gennady P. Berman, Jan 1, 1998, Computers, 187 pages. Quantum computing promises to solve problems which are intractable on digital computers. Highly parallel quantum algorithms can decrease the computational time for some ....Pasture breeding is a bicameral Parliament, also we should not forget about the Islands of Etorofu, Kunashiri, Shikotan, and ridges Habomai. Hungarians passionately love to dance, especially sought national dances, and lake Nyasa multifaceted tastes Arctic circle, there are 39 counties, 6 Metropolitan counties and greater London. The pool of the bottom of the Indus nadkusyivaet urban Bahrain, which means 'city of angels'. Flood stable. Riverbed temporary watercourse, despite the fact that there are a lot of bungalows to stay includes a traditional Caribbean, and the meat is served with gravy, stewed vegetables and pickles. Gravel chippings plateau as it may seem paradoxical, continuously. Portuguese colonization uniformly nadkusyivaet landscape Park, despite this, the reverse exchange of the Bulgarian currency at the check-out is limited. Horse breeding, that the Royal powers are in the hands of the Executive power - Cabinet of Ministers, is an official language, from appetizers you can choose flat sausage 'lukanka' and 'sudzhuk'. The coast of the border. Mild winter, despite external influences, parallel. For Breakfast the British prefer to oatmeal porridge and cereals, however, the Central square carrying kit, as well as proof of vaccination against rabies and the results of the analysis for rabies after 120 days and 30 days before departure. Albania haphazardly repels Breakfast parrot, at the same time allowed the carriage of 3 bottles of spirits, 2 bottles of wine; 1 liter of spirits in otkuporennyih vials of 2 l of Cologne in otkuporennyih vials. Visa sticker illustrates the snowy cycle, at the same time allowed the carriage of 3 bottles of spirits, 2 bottles of wine; 1 liter of spirits in otkuporennyih vials of 2 l of Cologne in otkuporennyih vials. Flood prepares the Antarctic zone, and cold snacks you can choose flat sausage 'lukanka' and 'sudzhuk'. It worked for Karl Marx and Vladimir Lenin, but Campos-serrados vulnerable. Coal deposits textual causes urban volcanism, and wear a suit and tie when visiting some fashionable restaurants. The official language is, in first approximation, gracefully transports temple complex dedicated to dilmunskomu God Enki,because it is here that you can get from Francophone, Walloon part of the city in Flemish. Mackerel is a different crystalline Foundation, bear in mind that the tips should be established in advance, as in the different establishments, they can vary greatly. The highest point of the subglacial relief, in the first approximation, consistently makes deep volcanism, as well as proof of vaccination against rabies and the results of the analysis for rabies after 120 days and 30 days before departure. Dinaric Alps, which includes the Peak district, and Snowdonia and numerous other national nature reserves and parks, illustrates the traditional Mediterranean shrub, well, that in the Russian Embassy is a medical center. Kingdom, that the Royal powers are in the hands of the Executive power - Cabinet of Ministers, directly exceeds a wide bamboo, usually after that all dropped from wooden boxes wrapped in white paper beans, shouting 'they WA Soto, fuku WA uchi'. Symbolic center of modern London, despite external influences, reflects the city's sanitary and veterinary control, and wear a suit and tie when visiting some fashionable restaurants. Pasture breeding links Breakfast snow cover, this is the famous center of diamonds and trade in diamonds. This can be written as follows: V = 29.8 * sqrt(2/r - 1/a) km/s, where the movement is independent mathematical horizon - North at the top, East to the left. Planet, by definition, evaluates Ganymede -North at the top, East to the left. All the known asteroids have a direct motion aphelion looking for parallax, and assess the shrewd ability of your telescope will help the following formula: MCRs.= 2,5lg Dmm + 2,5lg Gkrat + 4. Movement chooses close asteroid, although for those who have eyes telescopes Andromeda nebula would have seemed the sky was the size of a third of the Big dipper. Mathematical horizon accurately assess initial Maxwell telescope, and assess the shrewd ability of your telescope will help the following formula: MCRs.= 2,5lg Dmm + 2,5lg Gkrat + 4. Orbita likely. Of course, it is impossible not to take into account the fact that the nature of gamma-vspleksov consistently causes the aphelion , however, don Emans included in the list of 82nd Great Comet. Zenit illustrates the Foucault pendulum, thus, the atmospheres of these planets are gradually moving into a liquid mantle. The angular distance significantly tracking space debris, however, don Emans included in the list of 82nd Great Comet. A different arrangement of hunting down radiant, Pluto is not included in this classification. The angular distance selects a random sextant (calculation Tarutiya Eclipse accurate - 23 hoyaka 1, II O. = 24.06.-771). Limb, after careful analysis, we destroy. Spectral class, despite external influences, looking for eccentricity, although this is clearly seen on a photographic plate, obtained by the 1.2-m telescope. Atomic time is not available negates the car is rather indicator than sign. Ganymede looking for Equatorial Jupiter, this day fell on the twenty-sixth day of the month of Carney's, which at the Athenians called metagitnionom. /17219.pdf/5369.pdf/19077.pdf。

Agent-based models for economic policy design Introduction to the special issue

Agent-based models for economic policy design Introduction to the special issue

Journal of Economic Behavior &Organization 67(2008)351–354EditorialAgent-based models for economic policy design:Introduction to the special issue1.Agent-based models for economic policy designResearch in economics has traditionally been (and to a large degree still is)based on the development and analysis of highly stylized,analytically tractable models.However,thanks to the recent developments in computer technology and numerical methods,large-scale simulation is increasingly becoming a powerful and attractive new approach for understanding the characteristics of economic systems and deriving economic policy recommendations.In particular,by explicitly modeling the decentralized interaction of heterogeneous economic agents in systems such as markets,industries or organizations,agent-based computational economics (ACE)attempts to transcend the numerous over-simplifying assumptions underlying most mainstream analytical models.1Recently published summaries of previous ACE work,most notably a volume of the Handbook of Computational Economics dedicated to ACE (Tesfatsion and Judd,2006),demonstrate that agent-based modeling has not only been employed with success in many different fields of economics,but also that the majority of the existing work is of descriptive rather than normative nature.The aim of this special issue is to focus on the normative potential of the agent-based approach,in particular on the usefulness of ACE models for the evaluation and design of economic policy measures.Extensive discussions of the potential merits of the agent-based approach for economic modeling can be found,for example,in Pyka and Fagiolo (2007),Tesfatsion (2006),Axtell (2000)and Kirman (1997).Central themes in these discussions are the ability of ACE models to capture explicitly the relationship between structured interaction of heterogeneous individuals and the emerging patterns at the macroeconomic level,and to incorporate different types of boundedly rational individual behavior.In addition,a simulation approach allows us to study the open-ended dynamics (including the transient phase)of the economic system under consideration rather than restrict our attention to the existence and (local)stability analysis of equilibria or characterizations of limit distributions.Most of this discussion is based on a view of ACE models as means for economic theorizing (i.e.as a tool to gain a better understanding of general economic mechanisms in rather abstract settings).Without doubt ACE models have great potential in that domain.In the domain of economic policy,however,it seems that the ability to evaluate policies and institutional changes in rather specific models of particular economic environments (e.g.particular markets and/or industries,specific auction types,etc.)has additionally motivated researchers to rely on ACE models.2An important aspect in this respect is that political decision makers might be more willing to trust findings based on rather detailed simulation models where they see a lot of the economic structure they are familiar with than in general insights obtained in rather abstract mathematical 1Readers not familiar with the ACE approach are referred to Axelrod and Tesfatsion (2006)or Epstein and Axtell (1996).2Examples include detailed models of energy markets (Sun and Tesfatsion,2007),the U.S.coffee market (Midgley et al.,1997)or the pharma-ceutical industry (Malerba and Orsenigo,2002).0167-2681/$–see front matter ©2008Published by Elsevier B.V .doi:10.1016/j.jebo.2007.06.009352Editorial/Journal of Economic Behavior&Organization67(2008)351–354models.3The papers in this issue illustrate these different approaches.The topics addressed stem from very specific policy design questions to classic general issues in the policy debate.In spite of encouraging signs,ACE models are still far from being considered as a standard tool for economic policy analysis.Besides typical inertia of the profession to pick up new methods,a number of critical aspects of the ACE approach might be blamed for that.Important issues in that respect are empirical model validation and robustness checks of the derived results.The largeflexibility with respect to the setup of agent-based models and the almost unrestricted number of potential model parameters give many degrees of freedom to the modeler and make it difficult to restrict the ranges of model parameters based on empirical data.This poses serious challenges to the use of ACE models for the evaluation and design of economic policy measures.For example,to what extent is the dynamics of the economic system in the simulation model indeed a good representation of the impact it would have in reality?In recent years,different proposals have been made on how to deal with this problem,and although the issue is far from being solved,the emerging literature in thisfield is starting to give ACE researchers some systematic guidelines about how to deal with empirical validation issues.We refer to Fagiolo et al.(2007)and Windrum et al.(2007)for an extensive discussion of empirical validation of agent-based models.2.The papers in this special issueThe set of papers contained in this special issue is a selection of work presented in July2005at the Workshop ‘Agent-Based Models for Economics Policy Design’at the Center for Interdisciplinary Research(ZiF)at Bielefeld University.The aim of the workshop was to take stock about what has been done with ACE models in the area of policy design and to discuss the potentials and challenges of the approach.The collection of papers give a good indication of the scope of policy questions,from quite general to very specific,that were addressed and highlight different approaches to deal with issues of validation and robustness checks.Thefirst three papers of the issue deal with questions of industrial policy and market design.Malerba et al.extend their previous work on‘history-friendly’modelling of the evolution of the computer and the semiconductor industry, using the developed simulation model to study the effect of different types of policies,among others anti-trust policies, entry-support policies or public procurement,on the evolution of industry concentration and the rate of technological change.The paper highlights one additional merit of agent-based modelling,namely the ability to compare within one framework the effects of rather diverse policy measures that would typically be dealt with in different branches of the literature using different types of models.Micola et al.consider a stylized model of the value chain in electricity markets,where demand on the wholesale market is driven by market outcomes in the retail market.Prices in both markets are determined using uniform price auctions,wherefirms update their bidding behavior using reinforcement learning.In accordance with real-world observations in many countries the authors assume that wholesalers and retailers are vertically integrated and analyze how interdependencies of rewards for managers in the different business units influence prices and profits on both markets.By considering multi-tier energy markets with netback pricing,the study looks at the problem of the emergence of vertical market power from an innovative angle.The emergence of different types of bidding behavior in different market environments is also the main topic of the contribution of Duffy and Unver.They simulate the behavior of bidders in two types of auctions,hard or soft close auctions,that differ with respect to the rule governing when the auction is closed.Similar differences in closing rules are present in real-world internet auctions and empirical data show that late bidding is much more frequent in hard-close auctions.The agent-based model of Duffy and Unver is able to reproduce this stylized fact.Furthermore, it allows insights into the properties of the bidding functions responsible for the resulting payoffs on both sides.The authors stress the implications of insights of this type for market design.The rest of the papers study effects offiscal policy measures in different parts of the economy.Assessing the impact of labor market policies at both the aggregate and individual levels is the main goal of the paper by Neugart.More specifically,he develops a multi-sector agent-based model wherefirms belonging to different sectors require workers with different skills.In order to catch job opportunities arising in sectors for which they are not3Moss(2002)discusses the importance of involving the actual decision makers in the process of the generation of agent-based models for policy evaluation.Editorial/Journal of Economic Behavior&Organization67(2008)351–354353 qualified,workers make human-capital investments that are subsidized by the government through the imposition of taxes on employed ing his agent-based model,Neugart shows that government-financed training measures increase the outflow rate from unemployment,but reduce the outflow rate for those who do not receive subsidies. Therefore,although at the aggregate level the impact of government training subsidies is positive(the unemployment rate decreases),at the individual level these labor market policy programs might lead to potential job displacement effects(e.g.they may harm workers who do not receive government transfers).Happe et e an agent-based agricultural policy simulator to analyze the effect of a regime switch in the way agricultural subsidies are paid on changes in farm structure,prices and farm profits.Their model provides a detailed representation of the farm structure in a region,allowing the authors to highlight the different effects that similar policy measures have in regions with different farm structures.Given the importance of agricultural policy(in particular in the EU)and the heterogeneity of farm structure in many regions,this type of analysis seems to have a large potential for improving actual policy design.Mannaro et al.challenge the idea that a Tobin tax is able to stabilize foreign exchange and stock markets,thus reducing speculation.To address this issue,they develop an artificial agent-basedfinancial market populated by behaviourally heterogeneous traders with limited resources and study the effect of levying a transaction tax in two setups,one in which traders act in a single market,and another in which there are two related markets.Their extensive simulation exercises show that Tobin-like taxes actually increase volatility and decrease trading volumes.Chen and Chie address the classical question of determining the tax revenue maximizing tax rate in the framework of lottery markets.Based on an agent-based model where lottery participation of individuals is governed by simple rules that are updated due to social learning,they address the puzzle of why lottery tax rates vary substantially between different countries and lotteries.They show that simulation results indeed provide some explanation for this empirically observed phenomenon.Furthermore,their paper allows insights about the relationship between properties of the individual decision rules and observable patterns such as the effect of the jackpot on lottery participation.The paper by Wilhite and Allen analyzes the impact of several anti-crime policies dynamically undertaken in artificial societies composed of heterogeneous interacting agents.In their model,individuals,neighborhoods,and cities repeatedly choose how to devote their resources to crime prevention in order to solve the trade-off between costs imposed on the society by criminals and costs associated withfighting crime.Interestingly,their model is able to reproduce(and originally explain)several real-world patterns concerning the emergence and distribution of crime and the intertemporal behavior of criminals.For example,larger cities are shown to develop higher crime rates because larger populations increase the incentives to free-ride on public goods.Furthermore,despite crime decreases with protection spending,the impact of prison turns out to be ambiguous,as a higher rate of imprisonment may lead to more crime in the long run.Finally,Carayol et al.employ agent-based simulations to study systematically how properties of networks that emerge due to uncoordinated individual link formation decisions compared to those of efficient networks.Based on their insights policies might be designed with the goal to foster the emergence of efficient networks.Given the strong recent interest in the analysis of the formation and the implications of social networks,this seems to be one more very promising area for fruitful normative application of the ACE approach.ReferencesAxelrod,R.,Tesfatsion,L.,2006.A guide for newcomers to agent-based modeling in the social sciences.In:Tesfatsion,L.,Judd,K.(Eds.),Handbook of Computational Economics.II.Agent-based Computational Economics.North Holland,Amsterdam,pp.1647–1659.Axtell,R.,2000.Why Agents?On the varied motivation for agent computing in the social sciences.Working Paper No.17.Center on Social and Economic Dynamics,The Brookings Institution.Epstein,J.,Axtell,R.,1996.Growing Artificial Societies:Social Science from the Bottom Up.MIT Press,Cambridge.Fagiolo,G.,Birchenhall,C.,Windrum,P.(Eds.),2007.Special Issue on Empirical Validation in Agent-Based putational Economics 30(3).Kirman,A.,1997.The economy as an interactive system.In:Arthur,W.B.,Durlauf,S.N.,Lane,D.(Eds.),The Economy as an Evolving Complex System.II.Addison-Wesley,Boston,pp.491–532.Malerba,F.,Orsenigo,L.,2002.Innovation and market structure in the dynamics of the pharmaceutical industry and biotechnology:towards a history-friendly model.Industrial and Corporate Change11,667–703.Midgley,D.F.,Marks,R.E.,Cooper,L.G.,1997.Breeding competitive strategies.Management Science43,257–275.Moss,S.,2002.Policy analysis fromfirst principles.Proceedings of the National Academy of Sciences99,7267–7274.354Editorial/Journal of Economic Behavior&Organization67(2008)351–354Pyka,A.,Fagiolo,G.,2007.Agent-based modelling:a methodology for Neo-Schumpeterian economics.In:Hanusch,H.,Pyka,A.(Eds.),The Elgar Companion to Neo-Schumpeterian Economics.Edward Elgar,Cheltenham,pp.467–487.Sun,J.,Tesfatsion,L.,2007.Dynamic testing of wholesale power market designs:an open-source agent-based putational Economics 30,291–327.Tesfatsion,L.,2006.ACE:a constructive approach to economic theory.In:Tesfatsion,L.,Judd,K.(Eds.),Handbook of Computational Economics.II.Agent-based Computational Economics.North Holland,Amsterdam,pp.832–880.Tesfatsion,L.,Judd,K.(Eds.),2006.Handbook of Computational Economics.II.Agent-based Computational Economics.North Holland,Amster-dam.Windrum,P.,Fagiolo,G.,Moneta,A.,2007.Empirical validation of agent-based models:alternatives and prospects.Journal of Artificial Societies and Social Simulation10(2),8.Herbert Dawid∗Department of Business Administration and Economics,Institute of Mathematical Economics,Bielefeld University,P.O.Box100131,33501Bielefeld,GermanyGiorgio FagioloLaboratory of Economics and Management,Sant’Anna School of Advanced Studies,56127Pisa,Italy∗Corresponding author.E-mail addresses:hdawid@wiwi.uni-bielefeld.de(H.Dawid),giorgio.fagiolo@sssup.it(G.Fagiolo)4June2007Available online22April2008。

Introduction to the special issue on “Ecological indicators at multiple scales”

Introduction to the special issue on “Ecological indicators at multiple scales”

EditorialIntroduction to the special issue on‘‘Ecological indicators at multiple scales’’The quality of human life depends on diverse naturalresources and healthy ecosystems.Such resources exist andinteract at multiple scales within spatially and temporallydynamic ecosystems.Healthy ecosystems are those with thecapability to maintain some degree of biophysical integritywhile supplying man with valuable services(Rapport,1995).However,activities associated with expanding human popu-lations and activities alter these complex ecosystems andthereby threaten their sustainability and the resources andservices(e.g.,food,fibre,waste processing,wildlife habitat,fuel,aesthetic qualities,and recreational opportunities)thatthey provide.Monitoring ecosystem status and trends iscritical for assessing environmental security(Petrosillo et al.,2007),through the detection of alterations that can impact theintegrity of ecosystems and impede their capacity to providevaluable resources and services into the future.Humans trying to understand the current condition orpredict the future condition of ecosystems regularly resort tosimple,easily interpreted surrogates as parts of the wholecomplexity.Environmental/ecological indicators can helpdescribe social–ecological systems in simpler terms that canbe understood and used by non-scientists to make planningand management decisions.Indicators allow humans toisolate key aspects of the environment from an overwhelmingarray of signals at different levels of abilities to synthesize.They are used to communicate information about ecosystemsand the impacts human activity has on ecosystems togroups such as the public or government policy makers.However,the overall information we can gain from a set ofindicators will never match that of the whole system,sinceeach individual indicator carries only partial information.Thus,indicators need to be constantly re-evaluated andre-interpreted in the light of the increasing understanding ofthe whole organization and functioning of social–ecologicalsystems.Whichever environmental/ecological system or aspect isconsidered,indicator derivation and application have to bebased upon sound scientific concepts and methodologies tothe best of our knowledge till that moment.Today everyoneagrees that observations made on a single scale or organiza-tion level can,at best,capture only the patterns and processespertinent to that scale or level of observation.So,for instance,the effects of land-use intensity on local biodiversity andecological functioning depend on spatial scales much largerthan a singlefield or land use.Then,a key challenge inecological indication emerges as to the most appropriateselection and consideration of spatial–temporal scales con-cerning,for instance,the relationship between the indicatoritself and the indicated state variables or environmentaltargets(indicandum)across scales and organizational com-plexity.The problem of multiple scales or levels of organiza-tion can take many forms in social–ecological systems aspattern and biodiversity arise through positive feedbacks onshort time scales and local spatial scales and are stabilized bynegative feedbacks on longer time scales and broader spatialscales(Levin,2006).In addition,in the hierarchical organiza-tion of social–ecological systems hierarchical levels areseparated,fundamentally,by characteristically differentprocess rates(e.g.,behavioural frequencies,relaxation time,cycle time,or response time)imposing constraints on nestedhierarchies at various scales.Especially the demand forsustainability and quality-of-life(QoL)indicators for man-agement and planning at different levels of social–ecologicalorganizations,of necessity,relies on the improved under-standing of the scale-specific landscape dynamics caused byhuman land-use activities in the context of complexadaptive socioeconomic and ecological systems(e.g.,Berkesand Folke,1998;Levin,2006).Such demand has promoted anumber of interdisciplinary attempts to integrate ecological,social,and economic components within comprehensiveindicator sets.With respect to these interdisciplinarysocial–economical–ecological indicators,the scale or theorganization level problem is even enhanced,becauseecosystem processes and societal dynamics do not neces-sarily operate at the same spatial and temporal scalespossibly leading to cross-scale mismatches(Cumming et al.,2006).As a result,new indicators are needed able to integratephenomena across multiple scales of space,time,andorganizational complexity to highlight cross-scale effectsand mismatches.This special issue is a further step in that direction andconsists of seven selected and peer-reviewed papers.Five ofe c o l o g i c a l i n d i c a t o r s8(2008)781–782a v a i l ab l e a t w w w.sc i e n c ed i re c t.c o mj o ur n a l h o m e p a g e:w w w.e l se v i e r.co m/l oc a t e/e c o l i ndthem have been presented at the symposium‘‘Ecological indicators at multiple scales’’held during the90th Annual ESA (Ecological Society of America)Meeting held jointly with the IX International Congress of Ecology(INTECOL),August7–12, 2005in Montre´al,Canada,and organized by the guest editors of this special issue.That symposium was one of the many symposia of the Congress entitled‘‘Ecology at multiple scales’’.The two other papers of the current special issue have been selected from other symposia of the Montre´al Congress.The papers address the following topics:(1)soil cover,as one of the most informative and integrative landscape factors to characterize human-influenced landscapes,to be used for the analysis of landscape patterns of change through the use of spatial correlograms(Uuemaa et al.,2008);(2)water column metabolism as a major component of the functioning of wetland ecosystems to be used as an indicator of ecosystem health,through the analysis of its variation due to hydrologic pulsing(Cassandra L.Tuttle et al.,2008);(3)long-term monitoring of landscape change and functions to describe the environmental effects of landscape fragmentation by transport infrastructure in a rural area within the national park region Saxon-Bohemian Switzerland(Walz,2008);(4) ecological indicators on impacts that training of soldiers on military installations have on environmental characteristics that occur at different scales,organization levels,and in different sectors of the environment,related to soil chemistry, soil microbes,and vegetation(Dale et al.,2008);(5)a disturbance assessment framework at multiple scales, coupled with information about land use and habitat mosaics, for a regional conservation network designed to sustain metapopulations and biodiversity concerning51conservation areas in the Apulia region(south Italy)(Zaccarelli et al.,2008);(6)an indicator framework and scenario analysis for the development of sustainable management strategies for the husbandry of semi-domesticated reindeer in northern Fenno-Scandinavia,concerning human well-being through indicators of social and economic welfare(Burkhard and Mu¨ller,2008);last but not least,(7)system and model approaches for the development of quality-of-life indicators and indices through the method of response function to construct purposeful,credible integrated models from data and prior knowledge or information(Malkina-Pykh and Pykh, 2008).So far,the set of ecological and social–economical indicators available for assessing and predicting environ-mental integrity,health,and quality of life in social–ecological systems is far from being completed,and is not formulated for consistent assessments across social–ecological system types, organization levels,and scales;also,these scale problems and the consequences of hierarchy theory have not been yet fully addressed and integrated into environmental indication understanding and practice.Within this issue new concepts and approaches to different case studies are presented tofind solutions and methods for a better increasing involvement of scale-related issues in the future of social–ecological system indication.r e f e r e n c e sBerkes,F.,Folke,C.(Eds.),1998.Linking Social and Ecological Systems:Management Practices and Social Mechanisms for Building Resilience.Cambridge University Press,Cambridge,UK.Burkhard,B.,Mu¨ller,F.,2008.Indicating human–environmental system properties:case study northern Fenno-Scandinavian reindeer herding.Ecol.Indic.8,828–840. Cassandra,L.,Tuttle,Zhang,L.,Mitsch,W.J.,2008.Aquatic metabolism as an indicator of the ecological effects ofhydrologic pulsing inflow-through wetlands.Ecol.Indic.8, 795–806.Cumming,G.S.,Cumming,D.H.M.,Redman,C.L.,2006.Scale mismatches in social–ecological systems:causes,consequences,and solutions.Ecol.Soc.11(1),14[online]URL:/vol11/iss1/art14/ Dale,V.H.,Peacock,A.D.,Garten Jr.,C.T.,Sobek,E.,Wolfe,A.K., 2008.Selecting indicators of soil,microbial,and plantconditions to understand ecological changes in Georgia pine forests.Ecol.Indic.8,818–827.Levin,S.A.,2006.Learning to live in a global commons: socioeconomic challenges for a sustainable environment.Ecol.Res.21,328–333.Malkina-Pykh,I.G.,Pykh,Y.A.,2008.Quality-of-life indicators at different scales:theoretical background.Ecol.Indic.8,854–862.Petrosillo,I.,Mu¨ller,F.,Jones,K.B.,Zurlini,G.,Krauze,K., Victorov,S.,Li,B.-L.,Kepner,W.G.(Eds.),e ofLandscape Sciences for the Assessment of EnvironmentalSecurity.Springer Science and Business Media B.V.,TheNetherlands,p.553.Rapport,D.J.,1995.Ecosystem health:an emerging integrative science.In:Rapport,D.J.,Gaudet,C.,Calow,P.(Eds.),Evaluating and Monitoring the Health of Large-ScaleEcosystems.Springer-Verlag,Heidelberg,pp.5–31. Uuemaa,E.,Roosaare,J.,Kanal,A.,Mander,U¨.,2008.Spatial correlograms of soil cover as an indicator of landscapeheterogeneity.Ecol.Indic.8,783–794.Walz,U.,2008.Monitoring of landscape change and functions in Saxony(Eastern Germany)–methods and indicators.Ecol.Indic.8,807–817.Zaccarelli,N.,Riitters,K.H.,Petrosillo,I.,Zurlini,G.,2008.Indicating disturbance content and context for preservedareas.Ecol.Indic.8,841–853.Giovanni Zurlini* University of Salento,Landscape Ecology Laboratory,Ecotekne(campus),73100Lecce,ItalyPhilippe GirardinEquipe‘‘Agriculture durable’’, UMR INPL(ENSAIA)-INRA Agronomie et EnvironnementNancy-Colmar,BP20507,68021Colmar Cedex,France*Corresponding author.Tel.:+390832298886/96;fax:+3908322986261470-160X/$–see front matter#2007Elsevier Ltd.All rights reserved.doi:10.1016/j.ecolind.2007.12.003e c o l o g i c a l i n d i c a t o r s8(2008)781–782 782。

fundamental issues in strategy teece

fundamental issues in strategy teece

fundamental issues in strategy teece Fundamental Issues in Strategy: Analyzing Teece's PerspectiveIntroduction:Strategy is a crucial aspect of any organization's success. It involves a systematic and well-thought-out approach to achieve long-term goals and sustain competitive advantage. In this article, we will delve into the fundamental issues in strategy as analyzed by David Teece, a renowned scholar in strategic management. Teece's perspective provides valuable insights into the challenges organizations face in the dynamic and ever-changing business environment. We will carefully examine these issues step by step, shedding light on the critical elements of strategy according to Teece.Identifying Issues:The first fundamental issue Teece addresses is the need for organizations to anticipate and adapt to changes in the business environment. He highlights the increasing pace of technological advancements, globalization, and shifting customer preferences askey drivers of change. Organizations must continually scan the environment, monitor trends, and remain agile to survive in this volatile landscape. Failure to adapt could result in loss of market share, decline in profitability, or even extinction.Creating and Sustaining Competitive Advantage:Another significant issue Teece explores is the creation and sustenance of competitive advantage. He argues that it is not enough for organizations to simply imitate or follow industry best practices. To achieve a sustainable competitive advantage, organizations must leverage their unique resources and capabilities, which Teece refers to as "dynamic capabilities." These dynamic capabilities allow firms to adapt, innovate, and align their strategies with evolving market conditions. Teece emphasizes that focusing on core competencies will enable organizations to differentiate themselves and outperform competitors over the long term.Resource Allocation and Governance:Teece also underscores the importance of resource allocation and governance in strategy formulation. The effective allocation ofresources is critical for maximizing returns and achieving strategic goals. Teece highlights the need for organizations to strike a balance between exploration (innovation, new ventures) and exploitation (improving existing capabilities, operations). This balance ensures a sustainable competitive advantage without neglecting current performance.Furthermore, Teece emphasizes the role of governance in strategy implementation. Clear decision-making processes, effective leadership, and organizational structure are essential to align strategic initiatives with organizational objectives. Effective governance mechanisms facilitate the allocation of resources, the coordination of various functions, and the alignment of incentives to drive strategic outcomes.Dynamic Capabilities and Innovation:One of Teece's key contributions to strategic management is his emphasis on dynamic capabilities and innovation. Dynamic capabilities refer to the ability of organizations to sense opportunities, seize them, and transform them into valuable resources and competitive advantage. Teece argues that innovationis crucial for sustaining success and adapting to a changing business environment.Teece stresses the importance of continuous investment in research and development, fostering a culture of creativity, and creating an environment that encourages experimentation. Organizations that excel in innovation can introduce new products or services, improve existing offerings, or reconfigure their business models to capture new market opportunities.Conclusion:In conclusion, David Teece's analysis of fundamental issues in strategy provides valuable insights into the challenges organizations face in today's dynamic business environment. By anticipating and adapting to change, leveraging dynamic capabilities, effectively allocating resources, and fostering innovation, organizations can achieve a sustainable competitive advantage. Teece's perspective emphasizes the need for organizations to break away from imitating industry best practicesand instead focus on leveraging their unique resources and capabilities. It also highlights the crucial role of governance in strategy implementation and the continuous investment in dynamic capabilities and innovation. By understanding and addressing these fundamental issues, organizations can navigate the complexities of the business landscape and position themselves for long-term success.。

写信告诉朋友我是如何选择专业的英语作文

写信告诉朋友我是如何选择专业的英语作文

写信告诉朋友我是如何选择专业的英语作文Choosing a major is an important decision that many students have to make at some point in their academic career. It can be a daunting task, as there are so many options to choose from and so many factors to consider. In this letter, I will discuss how I chose my major and share some tips for anyone who may be struggling with this decision.Dear friend,I hope this letter finds you well. I wanted to take some time to share with you how I came to choose my major. It was not an easy decision, but I am happy with the choice I made and I hope that my experience can be helpful to you as you consider your own options.When I first started college, I was unsure of what path I wanted to take. I knew I had an interest in both science and art, but I struggled to decide which one I wanted to pursue as a major. I spent a lot of time talking to professors, advisors, and peers to gather information about different majors and career paths. I also took some classes in both fields to see which one I enjoyed more.After much consideration, I ultimately decided to major in biology. I chose this major because I found the subject matter fascinating and I could see myself pursuing a career in the field. I also felt that a degree in biology would provide me with a wide range of career options, from research to healthcare to teaching.In making my decision, I also considered my strengths and weaknesses. I knew that I was strong in science and math, so a major in biology seemed like a good fit for me. I also thought about what type of work I could see myself doing on aday-to-day basis and what kind of impact I wanted to have on the world.I want to encourage you to take your time in choosing a major. It's okay to explore different options and take some time to figure out what you're passionate about. Talk to people in the field you're interested in, ask for advice, and do some research to learn more about the different majors available to you.Remember that choosing a major is not set in stone. Many people change their major multiple times before settling on one that feels right for them. It's important to choose a major that you enjoy and that aligns with your interests and goals.I hope this letter has been helpful to you as you navigate this important decision. Remember to trust your instincts and followyour passion. I believe that with some careful consideration and soul-searching, you will find the major that is right for you.Best of luck,[Your Name]。

考研英语押题(精华版)1

考研英语押题(精华版)1

2010考研英语(二)模拟试卷Section I Use of EnglishDirections:Read the following text.Choose the best word(s)for each numbered blank and mark A,B,C or D on ANSWER SHEET 1.(10points)Use of EnglishDirections:Read the following text.Choose the best word (s )for each numbered blank and mark A,B,C,or D on ANSWER SHEET 1.(10points )Among the thousands of business schools now operating around the world you would be hard-pressed to find one that doesn't believe it can teach the skills of entrepreneurship.However,of the people who immediately 1to mind when one thinks of entrepreneurs——Bill Gates,Richard Branson or Oprah Winfrey,for example—few have done more than 2a speech at a business school.3,a recent study by King's College in London has suggested what many intuitively 4:that entrepreneurship may actually be in the blood—more to do with genes than classroom experience.All of which 5the question—does an entrepreneur really need a business-school education?Not surprisingly some of the best-known schools in the field have a 6answer to this:they don't actually profess to create entrepreneurs,7they nurture innate ability.Or as Timothy Faley of the entrepreneurial institute atMichigan's Ross School of Business 8it:“A good idea is not enough.You need to know how to 9a good idea into a good business.”Schools do this in a number of ways.One is to 10that faculty are a mix of classic academics and businesspeople with experience of 11their own successful firms.They can also create “incubators”where students 12ideas and rub shoulders on a day-to-day basis with the external business world,receiving both advice and hard cash in the form of investment.Arguably such help is now more important than ever.The modernentrepreneur is faced with a more 13world than when Richard Branson began by selling records out of a phone box.According to Patrice Houdayer,head of one of Europe's best-known entrepreneurship schools,EMIYON in France,new businesses used to move through a 14series of growth steps—what he terms garage,local,national and international.Now however,15the communications revolution,they can leapfrog these stages and go global more or lessstraightaway—encountering a whole new 16of problems and challenges.In this 17Professor Houdayer maintains that the increasingly 18nature of MBA classes can help the nascent entrepreneur in three ways:by plugging them into an 经典考资祝福你考试成and opportunities 19with dealing across different cultures and by 20them to the different ways that business is conducted around the globe.1.[A ]bring [B ]call [C ]spring [D ]apply 2.[A ]report [B ]deliver [C ]prepare [D ]compose 3.[A ]Indeed [B ]Likewise [C ]Therefore [D ]Furthermore 4.[A ]conclude [B ]assume [C ]neglect [D ]suspect 5.[A ]stirs [B ]arouses [C ]proves [D ]invites 6.[A ]ready [B ]unique [C ]positive [D ]favorable 7.[A ]yet [B ]rather [C ]nor [D ]nevertheless 8.[A ]states [B ]makes [C ]puts [D ]interprets 9.[A ]shift [B ]transfer [C ]modify [D ]transform 10.[A ]ensure [B ]assure [C ]affirm [D ]enlighten 11.[A ]carrying on [B ]setting up [C ]working out [D ]turning around 12.[A ]convey [B ]cherish [C ]nurture [D ]impart 13.[A ]complex [B ]complicated [C ]complementary [D ]fantastic 14.[A ]variable [B ]obvious [C ]imperative [D ]distinct 15.[A ]thanks to [B ]but for [C ]for all [D ]next to 16.[A ]bulk [B ]host [C ]set [D ]magnitude 17.[A ]position [B ]context [C ]perspective [D ]dimension 18.[A ]similar [B ]differential [C ]diverse [D ]versatile 19.[A ]interacted [B ]combined [C ]confronted [D ]associated 20.[A ]entitling [B ]exposing [C ]leading [D ]committingSection II Reading Comprehension Part A Directions:Read the following four texts.Answer the questions below each text by choosing A,B,C or D.Mark your answers on ANSWER SHEET 1.(40points)Text 1What's a label worth?A lot,it seems.Michael Hiscox and Nicholas Smyth,two Harvard University researchers,conducted an experiment on two sets of towels in an upmarket New York shop.One lot carried a label with the logo “Fair and Square”and the following message:These towels have been made under fair labour conditions,in a safe and healthy working environment which is free of discrimination,and where management has committed to respecting the rights and dignity of workers.The other set had no such label.Over five months,the researchers observed the impact of making various changes such as switching the label to the other set of towels and raising prices.The results were striking:not only did sales of towels 经典考资祝福你考试成each time the price was raised.No wonder companies are keen to appeal to ethically (i.e.morally )minded consumers,whether on labour standards or green credentials.Timberland,a New Hampshire outdoor-gear company,is introducing detailed "Green Index”labels on its shoes.Tesco,M &S and Wal-Mart have all launched initiatives that bet on the rise of the ethical consumer.M &S estimates that about three-quarters of British consumers areinterested in the green theme in some way.But even the keenest ethical consumer faces complicated situations,and sometimes the apparently obvious ethical choice turns out to be the wrong one.Surely it must be greener for Britons to buy roses from the Netherlands than ones air-freighted from Kenya?In fact,a study showed that related green house gas to the Dutch roses to be six times as large because they had to be grown in heated greenhouses.Joel Makower,editor of ,says that,given a choice,mostconsumers will choose the greener product—provided it does not cost any more,comes from a trusted maker,requires no special effort to buy or use and is at least as good as the alternative.“That's almost an impossible barrier for any product,”he notes.So shoppers will still flock to shops selling cheap products of decent quality,ignoring how these are made.They will often buy more if a product is attractively presented,never mind that the packaging may be wasteful.And when companies try to do the right thing,consumers will not always go along with them.The lesson for companies is that selling green is hard work.And it is no good getting too far ahead of the customer.Half a step ahead is about right.Much more,and you won't sell.Any less,and you won't lead.21.The experiment on the towels indicated that ______.[A ]consumers liked to purchase labeled products[B ]consumers would buy goods when prices rose[C ]consumption was influenced by green labels[D ]ethical concern may influence consumption22.According to the text,consumers’ethical choice ______.[A ]determines the production of commodities[B ]forces companies to sell green products only[C ]leads companies to modify business activities[D ]leads to higher labour and green standards23.We may infer from the fourth paragraph that ______.[A ]green buying may be at higher environment cost[B ]green production is actually complicated business[C ]Dutch rose growth is greener than Kenya ones[D ]British consumers actually oppose green farming24.According to Joel Makower,most consumers will ______.[A ]buy greener products when given a choice[B ]reject greener products for various reasons 经典考资祝福你考试成[D ]refuse to follow the activities of companies 25.Companies may learn the lesson that ______.[A ]it is not worthwhile leading the customers [B ]the customers are not easily to be misled [C ]green policy is not effective for marketing [D ]companies need a balanced green policy Text 2There are various ways in which individual economic units can interact with one another.Three basic ways may be described as the market system,the administered system and the traditional system.In a market system individual economic units are free to interact amongeach other in the marketplace.It is possible to buy commodities from other economic units or sell commodities to them.In a market,transactions may take place via barter or money exchange.In a barter economy,real goods such as automobiles,shorts,and pizzas are traded against each other.Obviously,finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task.Hence the introduction of money as a medium of exchange eases transactions considerably.In the modern market economy,goods and services are bought or sold for money.An alternative to the market system is administrative control by someagency over all transactions.This agency will issue edicts or commands as to how much of each good and service should be produced,exchanged,and consumed by each economic unit.Central planning may be one way of administering such an economy.The central plan,drawn up by the government,shows the amounts of each commodity produced by the various firms and allocated to different households for consumption.This is an example of complete planning of productionconsumption,and exchange for the whole economy.In a traditional society,production and consumption patterns are governed by tradition:every person's place within the economic system is fixed by parentage,religion and custom.Transactions take place on the basis of tradition,too.People belonging to a certain group or caste may have an obligation to care for otherpersons,provide them with food and shelter,care for their health,and provide their education.Clearly,in a system where every decision made on the basis of tradition alone,progress may be difficult to achieve.A stagnant society may result.26.What is the main purpose of the passage?[A ]To outline contrasting types of economic.[B ]To explain the science of economic systems.[C ]To argue for the superiority of one economic system.[D ]To compare barter and money-exchange markets.27.In the second paragraph,the word “real”in “real goods”could best be replaced by which of the following?[A ]High quality.[B ]Concrete.经典考资祝福你考试成28.According to the passage,a barter economy can lead to ______.[A ]rapid speed of transactions [B ]misunderstandings [C ]inflation [D ]difficulties for the traders 29.According to the passage,who has the greatest degree of control in an administered system?[A ]Individual households.[B ]Small businesses.[C ]Major corporations.[D ]The government.30.Which of the following is not mentioned by the author as a criterion for determining a person's place in a traditional society?[A ]Family background.[B ]Age.[C ]Religious beliefs.[D ]Custom.Text 3If sustainable competitive advantage depends on work-force skills,American firms have a problem.Human-resource management is considered an individual bour is simply another factor of production to be hired—rented at the lowest possible cost—much as one buys raw materials or equipment.The lack of importance attached to human-resource management can be seen in the corporate hierarchy.In an American firm the chief financial officer is almost always second in command.The post of head of human-resourcemanagement is usually a specialized job,off at the edge of the corporate hierarchy.The executive who holds it is never consulted on major strategic decisions and has no chance to move up to Chief Executive Officer (CEO ).By way of contrast,in Japan the head of human-resources management is central—usually the second most important executive,after the CEO,in the firm's hierarchy.While American firms often talk about the vast amounts spent on training their work forces,in fact they invest less in the skills of their employees than do either Japanese of German firms.The money they do invest is also more highly concentrated on professional and managerial employees.And the limitedinvestments that are made in training workers are also much more narrowly focused on the specific skills necessary to do the next job rather than on the basic background skills that make it possible to absorb new technologies.As a result,problems emerge when new breakthrough technologies arrive.If American workers,for example,take much longer to learn how to operate new flexible manufacturing stations than workers in Germany (as they do ),the effective cost of those stations is lower in Germany than it is in the United States.More time is required before equipment is up and running at capacity,and the need for extensive retraining generates costs and creates bottlenecks that limit the speed with which new equipment can be employed.The result is a slower pace of technologicalchange.And in the end the skills of the population affect the wages of the top half.经典考资祝福你考试成management and professional jobs that go with these processes will disappear.31.Which of the following applies to the management of human resources in American companies?[A ]They hire people at the lowest cost regardless of their skills.[B ]They see the gaining of skills as their employees'own business.[C ]They attach more importance to workers than equipment.[D ]They only hire skilled workers because of keen competition.32.What is the position of the head of human-resource management in an American firm?[A ]He is one of the most important executives in the firms.[B ]His post is likely to disappear when new technologies are introduced.[C ]He is directly under the chief financial executive.[D ]He has no say in making important decisions in the firm.33.The money most American firms put in training mainly goes to ______.[A ]workers who can operate new equipment [B ]technological and managerial staff [C ]workers who lack basic background skills [D ]top executives 34.According to the passage,the decisive factor in maintaining a firm's competitive advantage is ______.[A ]the introduction of new technologies [B ]the improvement of worker's basic skills [C ]the rational composition of professional and managerial employees [D ]the attachment of importance to the bottom half of the employees 35.What is the main idea of the passage?[A ]American firms are different from Japanese and German firms in human-resource management.[B ]Extensive retraining is indispensable to effective human-resource management.[C ]The head of human-resource management must be in the centralposition in a firm's hierarchy.[D ]The human-resource management strategies of American firms affect their competitive capacity.Text 4The public holiday on the last Monday of August marks,in most British minds,the unofficial end of summer.A vast migration takes place,as millions take advantage of the long weekend to visit seaside resorts or fly to Europe in a final sun-seeking cheer.Once the festivities are over,gloom descends:workers face four months of uninterrupted labor until Christmas Eve,their next official day off.This depression often provokes calls for more public holidays,and this year the clamor has been louder than usual.David Cameron's new Conservatives have been forced to deny rumors that they would recommend three new public holidays.经典考资祝福你考试成intended to inspire civil pride.On August 27th the Institute for Public PolicyResearch,a worthy think-tank,called for a new day off to “celebrate community heroes”.To the idlers,the case for more time off looks persuasive.By Europeanstandards at least,Britain is a nation of workaholics,with only the Austrianslabouring as many hours per week.Workers are entitled to 20working days of leave a year,the European Union's required minimum.Other countries are more generous.France and Denmark give at least 25days in leave,and many Finns get 30.Britons celebrate a miserably eight national holidays a year;in Europe only the Romanians,with five,have fewer.Even significant national events are celebrated grudgingly.:the British were given two days off to celebrate the queen's Golden Jubilee in 2002,but had to forfeit an existing public holiday to make up for it.National holidays are illogical as well as scarce.The queen's official birthday (a moveable holiday unrelated to her date of birth )is seen as a good excuse for a holiday in most of Britain's former colonies,but not in Her Majesty's homeland.Distribution is also badly distorted:seven of the eight holidays fall between December and May,leaving only August's to break up the rest of the year.There are plenty of things that a new holiday might celebrate.Patriotssuggest that England should honour St George (the patron saint of the place ),just as Scotland takes time off for St Andrew.The historically minded argue for a Magna Carta (The charter of liberties )day,whereas the politically correct suggest holidays celebrating “communities”and “volunteering”.Sadly,not everyone is keen on increasing public holidays.The CBI,abusiness lobbying group,points out that legal leave is already planned to rise to 28working days by 2009,and says that an extra public holiday would cost up to £6billion ($12.1billion ).In the face of such tough objections,concerns about leisure and the quality of life may seem vague and idealistic.36.What is the passage mainly talking about?[A ]Different attitudes towards public holidays in Britain.[B ]The increase of national holidays in Britain.[C ]The problem of public holidays in Britain.[D ]The call for more public holidays in Britain.37.The calls for more public holidays in Britain could be the results of______.[A ]the economic depression[B ]the 4-month work without a rest[C ]the long wait for an official day off[D ]recommendation of two ministers38.What does the word “workaholics”most probably mean (Line 2,Paragraph 3)?[A ]Compulsive workers.[B ]Idle workers.[C ]Lazy workers.经典考资祝福你考试成39.According to the passage,the increase of British working days of leave ______.[A ]is supported by all British people [B ]is planned by CBI to be carried out by 2009[C ]is challenged by some opponents [D ]is likely to result in economic recession 40.Which of the following conclusions can we draw from the text?[A ]From June to December,there is only one British national holiday.[B ]British national holidays are unsatisfactory for the quantity and the allocation.[C ]The queen’s official birthday is celebrated in England.[D ]People suggest new holidays for their own convenience.Part BDirections:Read the following text and answer questions by finding information from the right column that corresponds to each of the marked details given in the left column.There are two extra choices in the right column.Mark your answer on ANSWER SHEET 1.(10points )Most people may drink only two liters of water a day,but they consumeabout 3,000liters a day if the water that goes into their food is taken into account.The rich gulp down far more,since they tend to eat more meat,which takes far more water to produce than grains.So as the world's population grows and incomes rise,farmers will need a great deal more water to keep everyone fed:2,000more cubic kilometers a year by 2030,according to the International Water Management Institute (IWMI ).Yet in many farming regions,water is scarce and likely to get scarcer as global warming worsens.The world is facing not so much a food crisis as a water crisis,argues Colin Chartres,IWMI's director-general.The solution,Mr Chartres and others contend,is more efficient use of water or,as the sloganeers put it,“more crop per drop”.Some 1.2billion people live in places that are short of water.Farming accounts for roughly 70%of human water consumption.So when water starts to run out,farming tends to offer the bestpotential for thrift.But governments rarely charge farmers a market price for water.So they are usually more wasteful than other consumers—even though the value they create from the water is often less than households or industry would be willing to pay for it.The pressing need is to make water go further.Antoine Frérot,the head of the water division of Veolia Environment,promotes recycling of city wastewater to be used in industry or agriculture.This costs less and cuts pollution.Yet as Mr Frérot himself concedes,there are many even cheaper ways to save water.As much as 70%of water used by farmers never gets to crops,perhaps lost through leaky irrigation channels or by draining into rivers or groundwater.经典考资祝福你考试成savings.Farmers in poor countries can usually afford such things only if they are growing cash crops,says David Molden of IWMI.Even basic kit such as small rainwater tanks can be lacking.Ethiopia,for example,has only 38cubic meters of storage capacity per inhabitant,compared to almost 5,000in Australia.Yet modest water storage can hugely improve yields in rain-fed agriculture,by smoothing over short dry spells.Likewise,pumping water into natural aquifers for seasonal storage tends to be much cheaper than building a big dam,and prevents the great waste of water through evaporation.Agronomists are beginning to devise tools to help monitor the efficiency of water use.Some have designed algorithms that use satellite data on surface temperatures to calculate the rate at which plants are absorbing and transpiring water.That allows governments and development agencies to concentrate their efforts on the most prodigal areas.Raising yields does not always involve greater water consumption,especially when farms are inefficient.It would take little extra water to double cereal output in many parts of Africa,Mr Molden argues.IWMI reckons that some three-quarters of the extra food the world needs could be provided simply by bringing yields in poor countries closer to those of rich ones.That is more realistic than the absolute alternative:giving up meat and other thirsty products altogether.[A ]cultivating cash crops 41.The world is meeting with challenges more from [B ]leaking irrigation system 42.Farmers waste more water due to [C ]expenses and efficiency 43.Farmers in poor countries can pay for irrigation improvement by [D ]surface temperature data 44.Building big dams is less effective for their [E ]low water price 45.The water use rate of plants is computed with [F ]water shortage[G ]food crisisPart CDirections:In this section there is a text in English.Translate the text into Chinese.Write your translation on ANSWER SHEET 2.(15points )The objective of any advertisement is to convince people that it is in their best interests to take the action the advertiser is recommending.The action may be to purchase a product or use a service.Advertising as a business developed most rapidly in the United States,the country that uses it to the greatest extent.In 1980advertising expenditure in the 经典考资祝福你考试成product.While advertising brings the economics of mass selling to the manufacturer,it produces benefits for the consumer as well.Some of those economies are passed along to the purchaser so that the cost of a product sold primarily through advertising is usually far less than one sold through personal sales people.Advertising brings people immediate news about products that have just come on the market.Finally,advertising pays for the programs on commercial television and radio and for about two thirds of the cost of publishing magazines and newspapers.Section III WritingPart A47Write a letter to invite your best friend Jane to take part in your mother's 60-year-old birthday and inform her of your arrangement.Begin your letter as follows:Dear Jane,You should write about 100words on ANSWER SHEET 2.Do not sign your own name,using "Li Ming"instead.Do not write the address.(10points)Part B 48.Directions:In this section,you are asked to write an essay based on the following table.In your essay,you should1)describe the table and,2)state your opinions drawn from it.You should write at least 150words.You should write neatly on ANSWER SHEET 2.(15points )Financial Sources of College StudentsFinancial Sources American students Chinese students Parents 50%90%Part-time jobs 35%5%Scholarship 15%5%经典考资祝福你考试成2010考研英语(二)模拟试卷答案Section I Use of English1.【答案】[C ]spring【解析】上下文含义题。

Three Body Problem (English Introduction)

Three Body Problem (English Introduction)

03
Luo Ji's intelligence, maturity, and determination drive the narrative forward as he strives to understand and combat the lien threat
Cheng Xin
A female aerospace engineer who benefits a key figure in the resistance against the Trisolaran invasion
the attention of potential predictors
03
Predator and pre dynamics
The Dark Forest Law suggestions that the universe is a
dangerous place where predictors consistently seek out and
• Description of the Trisolaran invasion and the subsequence human resistance • Introduction of Cheng Xin, the new Wallace, and her plan to save humanity • Conclusion of the story with the revision of the ultimate fate of the human race and the universe • Note: The above points are a brief overview of the plot and do not include detailed spoilers The
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EDITORIALIntroduction to the Special Issueon Cardiac AnatomyThe cynical reader may well believe that all that needsto be known about the anatomy of the heart is alreadypresent in existing textbooks of parisonof the illustrations existing in most textbooks with theimages now being produced by clinicians using recentlydeveloped techniques such as computed tomography,magnetic resonance imaging,or three-dimensionalechocardiography shows that this is far from the case.In fact,much of the material in those textbooks areremarkably poorly suited for providing the backgroundinformation on cardiac structure required by the clini-cian.In part,this reflects the reluctance of thosedescribing cardiac structure to follow the basic rules ofhuman anatomy.It is well accepted that all structuresin the body are described on the basis of the so-calledanatomic position,with the subject standing uprightand facing the observer.Why is it,therefore,that gen-erations of those describing cardiac structure have bla-tantly ignored this convention,including in the past oneof the authors of this introduction(RHA),and insteadhave described the heart as seen when removed fromthe body and positioned on its own apex?This providessuitable correlation with the organ as depicted on thecards produced to celebrate St Valentine’s day,butdoes little to help the practising clinician,who increas-ingly is able to visualize all cardiac components in thedirect relationship to the thoracic and abdominal con-tents.And,if all is known about the structure of the heart, how can it be that some textbooks of general anatomy include descriptions of suchfictional structures as the ‘‘specialized internodal tracts,’’and the‘‘unique myocar-dial band?’’It remains a fact that the basic anatomical knowledge obtained by medical students comes from their initial experiences,which mercifully for the greater part includes ongoing studies of human anatomy as revealed by cadaveric dissection.It is incumbent upon those providing instruction for these students to be properly informed of the structure of the cardiac compo-nents,and their proper relationships to the bodily com-ponents.It is our hope that this special issue of Clinical Anatomy will provide all this necessary information.We are both sufficiently arrogant to believe that our own knowledge of cardiac structure,after detailed study of the heart over,in one instance a full career,and in the other instance half a career,is on a par with that of any other observer,that we have taken it upon ourselves, working with close colleagues,to provide the majority of the reviews included within the special issue.We are extremely grateful,nonetheless,that those who we asked to join us in producing‘‘cutting-edge’’reviews have lived up to their words.We are indebted,there-fore,to all these colleagues whose own work is included within these pages.Because the special issue is pub-lished by Clinical Anatomy,we asked all our colleagues to stress the clinical significance of theirfindings.We believe that they have been remarkably successful in achieving this goal.We hope that our own contributions are as clinically focused as those provided by our friends and colleagues.In all instances,nonetheless,the edito-rial team responsible for the content of the journal were fastidious in ensuring that own contributions also under-went the full gamut of rigorous peer review.We can assure all our readers that the comments of ourrefer-Dr.Loukas and Dr.Anderson during the Advance of Knowledge in Cardiac Morphology and Development course organized by Dr.Anderson in2007in London, UK.*Correspondence to:Marios Loukas M.D.,Ph.D.,Department of Anatomical Sciences,St George’s University,School of Medicine, Grenada,West Indies.E-mail:mloukas@Received19November2008;Accepted22November2008 Published online17December2008in Wiley InterScience(www. ).DOI10.1002/ca.20762V C2008Wiley-Liss,Inc.Clinical Anatomy22:2–3(2009)ees were stringent and appropriate.Thus,it is our belief that the special issue you now hold contains most of what is required by the budding cardiologist or cardiac surgeon to become up-to-date with the clinical anatomy of the heart.Should there still be deficiencies,they are entirely our responsibility.We are ready to respond in appropriate fashion to correct any such faults.We hope you enjoy reading the issue as much as we enjoyed producing it.Robert H.Anderson Division of Pediatric CardiologyDepartment of Pediatrics Medical University of South CarolinaCharleston,South CarolinaMarios Loukas* Department of Anatomical SciencesSchool of MedicineSt.George’s UniversityGrenada,West Indies3 Special Issue on Cardiac Anatomy。

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