首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   496篇
  免费   28篇
管理学   102篇
民族学   5篇
人才学   2篇
人口学   52篇
理论方法论   51篇
综合类   11篇
社会学   259篇
统计学   42篇
  2023年   6篇
  2022年   3篇
  2021年   3篇
  2020年   13篇
  2019年   20篇
  2018年   19篇
  2017年   28篇
  2016年   20篇
  2015年   22篇
  2014年   15篇
  2013年   90篇
  2012年   16篇
  2011年   10篇
  2010年   13篇
  2009年   17篇
  2008年   18篇
  2007年   20篇
  2006年   11篇
  2005年   12篇
  2004年   14篇
  2003年   11篇
  2002年   10篇
  2001年   13篇
  2000年   11篇
  1999年   17篇
  1998年   9篇
  1997年   12篇
  1996年   16篇
  1995年   15篇
  1994年   3篇
  1993年   4篇
  1992年   9篇
  1991年   2篇
  1990年   3篇
  1989年   2篇
  1988年   2篇
  1987年   3篇
  1985年   2篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1979年   2篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1973年   1篇
  1969年   1篇
排序方式: 共有524条查询结果,搜索用时 156 毫秒
1.
Quantifying uncertainty in the biospheric carbon flux for England and Wales   总被引:1,自引:0,他引:1  
Summary.  A crucial issue in the current global warming debate is the effect of vegetation and soils on carbon dioxide (CO2) concentrations in the atmosphere. Vegetation can extract CO2 through photosynthesis, but respiration, decay of soil organic matter and disturbance effects such as fire return it to the atmosphere. The balance of these processes is the net carbon flux. To estimate the biospheric carbon flux for England and Wales, we address the statistical problem of inference for the sum of multiple outputs from a complex deterministic computer code whose input parameters are uncertain. The code is a process model which simulates the carbon dynamics of vegetation and soils, including the amount of carbon that is stored as a result of photosynthesis and the amount that is returned to the atmosphere through respiration. The aggregation of outputs corresponding to multiple sites and types of vegetation in a region gives an estimate of the total carbon flux for that region over a period of time. Expert prior opinions are elicited for marginal uncertainty about the relevant input parameters and for correlations of inputs between sites. A Gaussian process model is used to build emulators of the multiple code outputs and Bayesian uncertainty analysis is then used to propagate uncertainty in the input parameters through to uncertainty on the aggregated output. Numerical results are presented for England and Wales in the year 2000. It is estimated that vegetation and soils in England and Wales constituted a net sink of 7.55 Mt C (1 Mt C = 1012 g of carbon) in 2000, with standard deviation 0.56 Mt C resulting from the sources of uncertainty that are considered.  相似文献   
2.
Five macroeconomic concepts are presented which are prominent in the business sections of newspapers, but which are not given equivalent prominence in macroeconomic textbooks. These are the discouraged worker phenomenon, the use of inventories in forecasting, the effect of changes in the money supply on the bond market, and the effects of inflation and nominal interest rates in the foreign exchange market. These concepts are presented via news clips illustrating the way they typically appear in the press. Instructors are urged to place extra emphasis on these concepts.  相似文献   
3.
Major changes in the health care financing and delivery system have usually been accompanied by an increase in demand within the health care field for consulting services. The passage of Medicare/Medicaid in 1965 is one example. The passage of the DRG-based prospective pricing system in 1983 is another. Both spawned a substantial amount of work, and income, for consulting firms. Now the health care field is engaged in nearly total transformation as the forces of health care reform at the national level are met with myriad adjustments at the local and regional levels. Managed care, already a byword, is being strengthened by a multitude of so-called integrated system initiatives. It is not easy to survive, and the call is out to consultants to save the day, or at least stave off disaster. In the following four articles, Marilyn Kennedy, a member of the ACPE faculty and a consultant herself, gives some advice on how to make the consulting arrangement successful; three physician executives provide a glimpse at consults that have worked, and some that did not work.  相似文献   
4.
The increasing number of fresh faces in the management ranks, many of them with highly polished credentials but little in the way of practical experience in the work-a-day management world, has increased the need for a new consulting professional--the personal coach. There simply aren't enough volunteer mentors to accommodate the growing medical management profession. Whatever the conditions under which this new professional's services are sought, both the individual to be coached and the organization for which the individual works should approach the arrangement with care and planning. The author offers some guidance for making the arrangement pay off.  相似文献   
5.
6.
What is fractured cross-generational communication? When what one person heard was not what the other person said. Regardless of your age, you need to understand some of the differences in communication styles that must be overcome if people are to work well together. This is especially important in health care right now when there are other pressing issues. Interpreters are at a premium because so much misunderstanding clouds the communication process. Two management strategies are presented that will help bridge the gaps between communication styles.  相似文献   
7.
Can you avoid ending up in a career-denting job: Are there potential pitfalls to recognize on the search for a rewarding position? Finding oneself in an impossible job, working for a boss who brings out your worst qualities and deepest insecurities, or joining an organization that is doomed are nightmare scenarios. How do these judgment errors happen? We asked physicians who've been there and, unfortunately, done just that. What they learned might help the rest of us skip the experience.  相似文献   
8.

Life satisfaction can be assessed either globally or with regard to satisfaction with specific domains of life. The latter multidimensional approach presumes science has delineated with confidence the specific domains most relevant to evaluating whether the criteria for a good life have been met. This paper shares results of a qualitative study of the perceived determinants of life satisfaction among 30 high school students who were diverse in terms of mental health; 6–10 participants were classified as complete mental health, vulnerable, symptomatic but content, or troubled at two time points separated by a year. Thematic analyses of transcribed individual interviews suggested eight themes that capture the domains of life adolescents perceive influence their happiness. These themes are compared and contrasted to domains included in existing multi-dimensional measures of youth life satisfaction. The factors likely to be particularly salient to students with different levels of mental health are noted.

  相似文献   
9.
10.
This article discusses research in the Northern Territory on Aboriginal civil and family law needs. It is based on focus group discussions and interviews with legal services providers and other associated organisations. The article argues that key areas of legal need involve discrimination, housing, child protection, social security, credit/debt and consumer law problems. It further argues that welfare conditionality, particularly as embodied in the NT Intervention and subsequent Stronger Futures policies, has exacerbated the need for legal assistance and advocacy for Aboriginal people.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号