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   453篇
  免费   15篇
管理学   76篇
民族学   1篇
人口学   35篇
丛书文集   1篇
理论方法论   53篇
综合类   2篇
社会学   271篇
统计学   29篇
  2020年   5篇
  2019年   8篇
  2018年   9篇
  2017年   10篇
  2016年   5篇
  2015年   8篇
  2014年   7篇
  2013年   88篇
  2012年   10篇
  2011年   22篇
  2010年   10篇
  2009年   12篇
  2008年   11篇
  2007年   16篇
  2006年   16篇
  2005年   7篇
  2004年   10篇
  2003年   5篇
  2002年   7篇
  2001年   8篇
  1999年   9篇
  1998年   6篇
  1997年   7篇
  1996年   6篇
  1994年   11篇
  1993年   7篇
  1992年   7篇
  1991年   9篇
  1990年   11篇
  1989年   5篇
  1988年   6篇
  1987年   5篇
  1986年   7篇
  1985年   7篇
  1984年   5篇
  1983年   4篇
  1982年   8篇
  1981年   8篇
  1980年   4篇
  1979年   8篇
  1978年   7篇
  1977年   5篇
  1976年   13篇
  1975年   4篇
  1974年   5篇
  1973年   4篇
  1972年   3篇
  1971年   2篇
  1970年   2篇
  1969年   2篇
排序方式: 共有468条查询结果,搜索用时 296 毫秒
211.
212.
Climate change and degradation of ecosystem services functioning may threaten the ability of current agricultural systems to keep up with demand for adequate and inexpensive food and for clean water, waste disposal and other broader ecosystem services. Human health is likely to be affected by changes occurring across multiple geographic and time scales. Impacts range from increasing transmissibility and the range of vectorborne diseases, such as malaria and yellow fever, to undermining nutrition through deleterious impacts on food production and concomitant increases in food prices. This paper uses case studies to describe methods that make use of satellite remote sensing and Demographic and Health Survey data to better understand individual-level human health and nutrition outcomes. By bringing these diverse datasets together, the connection between environmental change and human health outcomes can be described through new research and analysis.  相似文献   
213.
214.
This article joins the debate over institutional change with two propositions. First, all institutions are syncretic, that is, they are composed of an indeterminate number of features, which are decomposable and recombinable in unpredictable ways. Second, action within institutions is always potentially creative, that is, actors draw on a wide variety of cultural and institutional resources to create novel combinations. We call this approach to institutions creative syncretism. This article is in three parts. The first shows how existing accounts of institutional change, which are rooted in structuralism, produce excess complexity and render the most important sources and results of change invisible. We argue that in order to ground the theory of creative syncretism we need a more phenomenological approach, which explains how people live institutional rules. We find that grounding in John Dewey’s pragmatist theory of habit. The second part of the article explains Dewey and shows how the theory of habit can ground an experiential account of institutional rules. The third part presents a field guide to creative syncretism. It uses an experiential approach to provide novel insights on three problems that have occupied institutionalist research: periodization in American political development, convergence among advanced capitalist democracies, and institutional change in developing countries.  相似文献   
215.
Between 1939 and 1941, members of the Jewish community in the German village of Neustadt (Hesse) attempted to immigrate to Alaska under a resettlement plan proposed by the US Department of the Interior. The plan failed and no one from Neustadt reached Alaska. The situation of Neustadt Jews during the 1930s is examined, focusing particularly on the effects of anti‐Jewish measures. The two‐year attempt to resettle in Alaska is followed through correspondence between the spokesman of the community and officials in Washington. The article concludes with an account of the fate of the Neustadt Jews.  相似文献   
216.
Abstract

This paper assesses the relative impact of direct and indirect determinants of marital fertility in Pakistan, where the vast majority of women do not use any method of fertility regulation. Data came from the 1990/91 Pakistan Demographic and Health Survey, and models were estimated for women aged 15–49, 15–24, 25–34 and 35–49. The younger cohort may be the vanguard of change; change which may be masked by investigating only the conventional 15–49 age group. Findings indicate that unlike the older cohorts, the younger cohort does not have negative and significant relationships between education, employment and fertility; and, that the current use of family planning is positive and significant with fertility for the 35–49 cohort only. These findings suggest that there is a threshold or minimum number of children that a woman must produce before determinants such as current use of family planning, education and employment impact fertility.  相似文献   
217.
We investigate achievable and unachievable hierarchies in weighted voting systems where the quota is a proportion of the total weight. This extends work of Bean et al. (Theory Dec 65:285–302, 2007) where simple majority achievable hierarchies were characterized. In particular we resolve the question of which hierarchies are possible with common quota rules other than simple majority, such as 2/3-majority or 3/4-majority, and offer a conjecture about proportional quota achievable hierarchies in general.  相似文献   
218.
219.
220.
Survey data collected from deans and directors of graduate schools of social work indicate that community service is the least valued of faculty activities among faculty peers, deans, and university administrators. Publication and teaching are consistently the most valued and rewarded in tenure and promotion and other personnel decisions. Findings are discussed, and recommendations made that might help to close the gap between the need for service activities and the existing faculty reward system.  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