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1.
Worldwide medical facilities differ, and for this reason, the causes of death can vary. Cancer is considered the second leading cause of death after heart disease worldwide, and the same causes of death are observed in the United States (US). Therefore, the purposes of this study are to explore worldwide research levels in the field of cancer and the social collaboration of researchers and institutions in this field. This article examines the structural patterns of international co-authors and co-institutions in science citation index papers in cancer research. The study uses measures from the social network analysis method, including degree centrality, betweenness centrality, eigenvector centrality, and effectiveness, to investigate the effects of social networks in the area of cancer research. Empirical analysis results identify the US is the most central country, followed by Germany, Italy, France, and China, in terms of co-authored networks in this research field. Institutional analysis results indicate that the University of Milan is at the top in terms of degree centrality. The Gustave Roussy Cancer Campus in France and German University of Düsseldorf occupy the second and fourth positions, respectively. The University of California in Los Angeles and Harvard University, both in the US, are at third and fifth positions, respectively.  相似文献   

2.
In this paper, we consider a general equilibrium model in which the economies are characterized by the distribution of firms on a set of branches of production; we will show that based on the decisions of the managers of the firms, it is possible to build a dynamic system whose solutions reproduce the possible trajectories of the economy. Once the initial state of an economy is known, that is, the initial distribution of firms, we will have a unique solution for this dynamic system, which will coincide with the evolution of the economy, that is, the evolution of prices and equilibrium allocations.The investment decisions of the administrators of the companies will change the distribution over the set of existing productive branches, which in turn will produce changes in the wealth of consumers who are also shareholders of the companies and then as a consequence, their demand will change, and therefore the equilibrium allocations and prices will too.In most cases, these decisions lead to an improvement in the efficiency of the productive side of the economy and an increase in the welfare of the economy as a whole, but, as we will show, under some particular circumstances, even when it comes to rational decisions from the point of view of administrators, this can lead to undesirable repercussions on the welfare of consumers. Besides, in a neighborhood of a critical economy, even when these decisions may involve small changes in the distribution of companies, they can cause abrupt and unexpected changes in the behavior of the economy, or in other words, they can cause an economic crisis. These are characterized by large changes in the prices, in the demand, and in the supply of goods. In contrast, in a sufficiently small neighborhood of a regular economy, small changes in the distribution of firms produced by the investment decisions of managers do not lead to large changes in the subsequent behavior of the economy. We will exemplify these statements with several numerical examples.  相似文献   

3.
The BRICS countries in general, and China and India in particular, are now widely regarded as the areas of the world likely to challenge the economic leadership of the United States (US) and the European Union (EU). A large part of this challenge will come from rapid technological catch‐up by China and India. Yet, despite a recent rise in interest, there is limited knowledge about how and where innovation takes place in these two leading emerging countries and to what extent the Chinese and Indian territorial systems of innovation differ from those in the EU or the US. In this article we explore the geography of innovation in China and India, concentrating on understanding key territorial‐level innovation trends by country, region and technology field, using the US and the EU as benchmarks. We find significant contrasts between the geography of innovation in China and India and that of the US and the EU. First, the degree of concentration of innovative activities in both countries is extremely high. Levels of agglomeration of innovation in the coastal provinces of China, as well as in Delhi and the South of India, significantly exceed the levels of agglomeration found in the USA and the EU. Secondly, China has witnessed a more rapid increase in the degree of concentration of innovation than India. We posit that the differences in the geography of innovation between, on the one hand, China and India and, on the other hand, between these countries and the developed world are rooted in different institutional settings, different systems of innovation and different national innovation strategies.  相似文献   

4.
A bstract . Fritz Redlich (1892-1978) played a leading role in the development of the analytic approach in history and in establishing the new institutional history that combines entrepreneurial and business history and sociology. A member, in economics , of the German historical school , he spent 16 years in the chemical industry before the triumph of Nazism forced him to emigrate from Germany in 1936. After teaching at various colleges until 1942, he spent the rest of his life doing research in the libraries of Harvard University , producing several notable works in economic history , including a classical study of American banking , and pioneering in entrepreneurial history.  相似文献   

5.
WORLD OUTLOOK     
The world economic recovery, which began in the late summer of 1980, can now be seen as premature, in as much as 1980's short, sharp recession had achieved only a limited reduction in the rate of inflation. Economic policy, particularly in the United States, is once more geared to a reduction in the inflation rate even if this imposes costs in terms of lost output and higher unemployment. The consequent appreciation of the US dollar against the European currencies has - in spite of weakening oil and non-oil commodity prices in dollar terms - produced a further boost to European inflation and a subsequent tightening of policy in some countries, notably West Germany. In these circumstances we expect little or no growth in output in the world economy until the summer of 1982.  相似文献   

6.

Quality of life relies on also the quality of working context and the group dynamic. Culture of schools, trust and leadership facilitate quality in fostering strategic policies in establishing policy and development. The aim of the research study is to examine the role of leadership, trust for school culture in regard to the perceptions of inspectors. As this research stands on qualitative nature, experiences, perceptions of research participants shape the current understanding to give insights on the role of leadership, trust. In addition, establishing school culture is a part of quality to set policy in terms of development, inspection is a moderation of encapsulating the nature of school culture. Interview was employed to gain understanding and experiences of inspectors in relation to leadership, trust for the school culture. Mission, vision of schools, principles of schools, loyalty to schools, policies, objectives of practices in schools, social interaction in schools. Thematic analysis through laddering was done that five themes were established in examining leadership, trust in the school culture. It is important that employees in the training organization act in a joint view on implementing educational objectives. This is achieved by developing positive attitudes in people and by being able to act constructively with each other. The research results revealed that the inspectors who are currently working at the Ministry of National Education have their views on the mission, vision and leadership of schools and what they think about school culture trust in schools.

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7.
Jesús ngel  Beatriz 《Technovation》2003,23(12):939-948
The aim of this article is to collect and make up the most important contributions in the economic literature in relation to the special characteristics of the management of the environmental innovation in the SMEs. Specifically, we want to show their strengths and weaknesses in order to make up the main conclusions of these analyses with the literature in relation to the way Public Administrations face this situation. The scarce development in the SMEs in respect to their environmental strategy may be a consequence of the links among some of the following factors: limited financial resources, the type of organizational structure, a little influence of the strategic adaptation competence against the changes in the SMEs, the managers’ scarce environmental training and short term orientation, the staff’s scarce environmental awareness and training, the status of the environmental issues in the company, the SMEs’ lower ability to obtain highly radical innovations, the scarce influence of manufacturing process flexibility in the most advanced states of the environmental strategy in the SMEs and their lack of relation ability with external stakeholders—very important in the success of the most advanced environmental approaches. Besides, the lack of regulation neutrality must be added as a key difference among companies of different sizes. So specific actions seem be necessary, such as technological advice and awareness, and training programs in order to cooperate with external stakeholders.  相似文献   

8.
陈思源 《城市发展研究》2011,18(11):110-114
社会管理和公共服务是现代城市的两大基本职能.保障城市公共安全,实施防灾减灾是城市履行管理与服务职能的重要内容.首先,综述国际城市防灾减灾的合作和研究的主要进展;其次,基于城市生态经济系统特征,探讨城市灾害系统的结构功能和形成机制,分析中国城市灾害风险的特征;再次,提出中国城市防灾减灾体系的建设战略,包括:确立城市安全发...  相似文献   

9.
刘燕 《价值工程》2014,(19):294-295
利用云南省昭通市昭鲁盆地内气象观测站近50年干旱、洪涝、8月低温冷害、病虫资料分析,其结果表明:近50年旱灾出现的频率有增多趋势,21世纪农作物年平均旱灾为多年平均经济损失的近3倍;洪涝灾使农作物的成灾率从70年代的26.9%上升到21世纪为64.2%,对农业生产的危害性逐步加重;8月低温冷害近50年来共造成了中等及以上的低温冷害共26年,其发生的频率为46%,随着近20年来夏季气温升高趋势的影响,在21世纪冷害发生的年数也有减少的趋势。  相似文献   

10.
Jim Ramsay was born on September 5, 1942, in Prince George, British Columbia. He pursued undergraduate studies at the University of Alberta, where he completed a BEd in 1964 with a major in English and a minor in mathematics. He then specialized in statistics and psychometry, earning a PhD in psychology from Princeton University in 1966. After holding a temporary lectureship in the Department of Psychology at University College London for one year, he joined the Department of Psychology at McGill University, where he rose through the academic ranks. He was chair of his department from 1986 to 1989 and spent sabbatical leaves in Cambridge, Grenoble, and Toulouse. He was named professor emeritus upon his retirement in 2007. Jim is the author of four influential books and over 100 peer‐reviewed articles in statistical and psychometric journals. He developed much of the statistical theory behind multidimensional scaling and is widely recognized as the founder of functional data analysis. Three of his papers were read to the Royal Statistical Society, and another won The Canadian Journal of Statistics 2000 Best Paper Award. The Statistical Society of Canada (SSC) awarded him a Gold Medal for research in 1998 and an honorary membership in 2012. Jim was president of the Psychometric Society in 1981–82 and president of the SSC in 2002–03. The following conversation took place at Jim's home in Ottawa, Ontario, on March 14 and April 4, 2012.  相似文献   

11.
外商投资我国服务业:现状与建议   总被引:1,自引:0,他引:1  
徐婧 《价值工程》2007,26(4):27-30
20世纪80年代以来,随着全球产业结构调整和国际分工的日益深化,服务业已取代制造业成为对外投资领域的主流。与此相适应,我国服务业吸收的外商直接投资也呈现快速增长的态势。但由于我国服务业发展滞后,服务体系不完善,法律法规不健全,一定程度上制约了我国对服务业外资的吸收和高效利用。文中对我国服务业在利用外商直接投资中出现的问题及其应对策略进行初步的探讨。  相似文献   

12.
乡镇固定资产管理是乡镇财务管理的一项重要内容,对维持乡镇基础性设施建设持续健康发展都有着重要意义。但是在对乡镇的各类审计中发现,我国乡镇的固定资产管理还存在大量问题,应引起相关部门的重视。论文针对乡镇固定资产管理中存在的问题,分析形成问题的原因,并提出应对措施与建议。  相似文献   

13.
The recent deregulation in electricity markets worldwide has heightened the importance of risk management in energy markets. Assessing Value-at-Risk (VaR) in electricity markets is arguably more difficult than in traditional financial markets because the distinctive features of the former result in a highly unusual distribution of returns—electricity returns are highly volatile, display seasonalities in both their mean and volatility, exhibit leverage effects and clustering in volatility, and feature extreme levels of skewness and kurtosis. With electricity applications in mind, this paper proposes a model that accommodates autoregression and weekly seasonals in both the conditional mean and conditional volatility of returns, as well as leverage effects via an EGARCH specification. In addition, extreme value theory (EVT) is adopted to explicitly model the tails of the return distribution. Compared to a number of other parametric models and simple historical simulation based approaches, the proposed EVT-based model performs well in forecasting out-of-sample VaR. In addition, statistical tests show that the proposed model provides appropriate interval coverage in both unconditional and, more importantly, conditional contexts. Overall, the results are encouraging in suggesting that the proposed EVT-based model is a useful technique in forecasting VaR in electricity markets.  相似文献   

14.
In this paper, we study the unemployment dynamics in the Belgian regions, Flanders and Wallonia, on the basis of aggregate stratified data covering the period 1973–93. We decompose the aggregate exit probability from unemployment into calendar time and, both observed and unobserved, compositional effects. We find that changes in the inflow composition affect the cyclical fluctuations in unemployment duration only marginally. However, the long‐run improvement in the quality of entrants into unemployment, notably in terms of educational attainment, mitigates the strong upward trend in this duration. This is a new result as none of the existing studies purges the trend in the aggregate outflow rate of the variation in its composition. We also conclude that in Belgium, incidence explains as much as 45% of the evolution of unemployment. Finally, the diverging evolution of unemployment across Flanders and Wallonia predominantly results from a stronger decline in the exit rates from unemployment in Wallonia.  相似文献   

15.
As the pace of economic activity moderated in 1995, job growth slowed. Nonetheless, it was enough to absorb the small increase in the supply of labor, with the result that the unemployment rate remained at about the same level it had reached at the end of 1994. In the first quarter of 1995, employment grew at a brisk pace but, as the economy began to slow, job gains fell sharply. Employment growth continued at a much more moderate pace for the balance of the year, so that, by the fourth quarter, nearly 1.9 million jobs had been added to the Nation's payrolls. By comparison, in the fourth quarter of 1994 alone, payroll employment had grown by 1.1 million. Most of the job gains in 1995 were in the services industry group. Manufacturing employment, which had been rising since the fall of 1993, began to decline in the spring, and by the end of 1995, that industry group had lost nearly a quarter of a million jobs. Employment increased in most of the other major industry groups, even though declines in some of their component industries partly offset gains in others.  相似文献   

16.
随着非公企业的发展,非公企业的廉政建设工作的重要程度不断提高,在新时代加强非公企业廉政建设工作具有重要的理论与实践意义。但从非公企业廉政建设的现状出发,非公企业的廉政建设工作仍存在政治理论学习不够、廉政建设工作人员业务素质与水平有待提高以及党员的先锋引领作用不足等问题。鉴于此,论文介绍了加强非公企业廉政建设工作的重要意义,结合非公企业廉政建设工作的现状提出各项问题的原因,探索了非公企业开展廉政建设工作的路径,以期实现非公企业廉政建设与企业发展同频共振。  相似文献   

17.
近些年,我国各高职院校军事理论课教学虽有显著的成绩,但是,在军事理论课教学中,仍存在一些问题需要客观正视并解决。基于此,笔者根据从事军事理论课教学经验,首先分析了高职院校军事理论课教学中存在的主要问题,然后指出了军事理论课教学优化原则,同时提出了加强高职院校军事理论课教学的优化对策,旨在提高高职院校军事理论课的教学水平。  相似文献   

18.
王勇 《价值工程》2021,40(2):158-159
地基处理技术是近年来我国房屋建筑工程施工中一种较常见的施工处理技术,多见于房屋建筑工程中的软土地基施工环节.通过以往的房屋建筑经验,如果直接在软土地基上进行建筑施工,地基区域软土很容易会影响房屋建筑工程的稳定性,所以,在针对这一部分软土区域的施工环节,需要针对拟施工的地基软土区域进行处理,提升其软土的稳定性.到目前,地...  相似文献   

19.
姚宏韬  丁伟  王化冰 《物流科技》2008,31(12):110-112
文章在深入分析铁岭市物流产业发展的现状问题与历史机遇的基础上.论证确立建设东北重要物流基地的发展目标,发掘城市物流产业发展的关键语突破点,提出龙头牵引、市场抚育、交汇贸转、开放合作等多策略复合发展对策.希冀铁岭现代物流产业发展的突破,亦供相似城市物流发展与研究之借鉴。  相似文献   

20.
The impact of the AIDS epidemic in developing countries, and in Africa in particular, is now a matter of great concern to policy makers, managers, and academics on a global scale. The magnitude of the potentially disastrous effects of the disease has severe implications for management in organizations, and, in particular, for HRM. The AIDS epidemic is imposing, and will continue to impose, in the foreseeable future, a significant burden on the way people are managed. Little has been written on HRM in Africa, and the present literature on AIDS and HRM in Western societies is inappropriate and insufficient in relation to African organizations. Fifteen organizations in Tanzania took part in this study, which is probably the first of its kind, to produce a picture of current developments and approaches in managing people under the threat of AIDS.  相似文献   

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