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   274篇
  免费   5篇
管理学   40篇
民族学   1篇
人口学   11篇
丛书文集   1篇
理论方法论   22篇
综合类   3篇
社会学   120篇
统计学   81篇
  2021年   1篇
  2020年   5篇
  2019年   3篇
  2018年   10篇
  2017年   5篇
  2016年   8篇
  2015年   8篇
  2014年   5篇
  2013年   68篇
  2012年   8篇
  2011年   9篇
  2010年   4篇
  2009年   5篇
  2008年   5篇
  2007年   9篇
  2006年   7篇
  2005年   5篇
  2004年   7篇
  2003年   7篇
  2002年   11篇
  2001年   8篇
  2000年   5篇
  1999年   2篇
  1998年   3篇
  1997年   4篇
  1996年   5篇
  1995年   3篇
  1994年   3篇
  1993年   2篇
  1992年   4篇
  1991年   3篇
  1990年   2篇
  1989年   3篇
  1988年   5篇
  1987年   2篇
  1986年   2篇
  1985年   5篇
  1984年   3篇
  1983年   2篇
  1982年   1篇
  1981年   4篇
  1980年   1篇
  1979年   1篇
  1978年   3篇
  1977年   2篇
  1976年   3篇
  1973年   3篇
  1970年   1篇
  1967年   1篇
  1966年   1篇
排序方式: 共有279条查询结果,搜索用时 15 毫秒
191.
Recent literature is sceptical about the ability of aquaculture development to enhance equity and reduce poverty. This article investigates the issue empirically by surveying 148 households randomly selected in five coastal communities of the Philippines. There is overwhelming evidence that aquaculture benefits the poor in important ways and that it is perceived very positively by poor and non‐poor alike. In particular, the poor derive a relatively larger share of their income from it than the rich, and a lowering of the poverty line only reinforces this result. A Gini decomposition exercise also shows unambiguously that aquaculture represents an inequality‐reducing source of income, providing employment to a large number of unskilled workers in communities characterised by large labour surpluses.  相似文献   
192.
Animal abuse by children is generally regarded as an impulsive psychological act without instrumental benefit. This research takes a sociological approach to the topic, exploring the deliberate harm of animals as a particular kind of unsavory or dirty play that is part of adolescent socialization. Interviews were conducted with twenty‐five college undergraduate students who admitted to abusing animals earlier in their lives. Respondents considered their prior acts a form of everyday play having serious and thrilling overtones. At a deeper level, their abuse was an extraordinary form of play in that they also were appropriating adult culture. Because their appropriations stemmed from a wider culture racked with inconsistencies about the proper treatment of animals, respondents' presentations of self were split between those who no longer spoke of abuse as fun and admonished themselves for having done this and those who still clung to the idea that harming animals was fun and were seemingly untroubled by their former acts.  相似文献   
193.
The 1989 DC-10 crash at Sioux City, Iowa presented a rare instance in which a potential threat to safety was both (i) intensely publicized over a short period and (ii) also amenable to the unobtrusive measurement of the market reaction it evoked. As such, it allowed a useful case study of the extent and duration of behavior change caused by a frightening event. Using reservations data from travel agencies in five states, this paper estimates the short-term effects of the Sioux City crash on passenger willingness to fly the DC-10. The data suggest that, in the first few weeks after the crash, more than one third of travelers who would normally have booked DC-10 flights chose instead to fly other aircraft. Within 2 months of the disaster, however, DC-10 bookings rebounded to within 10% of the level that would have been expected had the Sioux City crash not occurred. At no time, apparently, did the airlines that operate DC-10s use their "yield-management" computer pricing systems unofficially to lower DC-10 fares relative to those on other types of plane.  相似文献   
194.
We present and apply an adjustment procedure for the Bureau of the Census and Bureau of Labor Statistics gross labor-force flows data that addresses two major defects in the data. First, an adjustment procedure is developed to take account of individuals with missing labor-force classifications who are not missing at random. Second, we provide a procedure for adjustment for individuals with spurious labor-force transitions arising because of classification errors in either the current or the previous Current Population Survey. Our procedures are applied to compute adjusted monthly gross change data for the period January 1977–December 1982. The average adjustment for nonrandom missing classifications ranges from –12% to 15% of the unadjusted gross change data. The average adjustment for spurious labor-force transitions reduces estimated movements by 8%–49%. The classification adjustment also increases estimated consecutive periods of unemployment by 18%. We apply several internal and external consistency checks to our procedure. In general, the adjustments appear reasonable. We also suggest some modifications of Current Population Survey procedures that could reduce the use of ex post adjustment procedures in the future.  相似文献   
195.
The class of logistic processes involving geometric minimization introduced by Arnold (1989) is extended by replacing the Bernoulli sequence used in the definition of the process by a Markovian (0,1) sequence. A more flexible range of dependence structures is thus introduced. Parameter estimation and related processes are discussed.  相似文献   
196.
197.
Social science theories of ethnic division and antipathy are tested empirically using survey and zip code data for representative samples of whites, African Americans, and Mexican Americans in Texas. Ordered logistic regression tests estimate the effects of theoretically relevant variables on probabilities of racial and ethnic out-group social distance. Competing social science theories of ethnic and racial social distance are tested for multiple groups. Statistical support is found for group attachment/identity theories and realistic group conflict theories in explaining variance in out-group social closeness. The socioeconomic theory was not found to be an important predictor of out-group social closeness.  相似文献   
198.
Abstract

This article contributes to the literature on social capital and the environment in two ways. First, we identify a relationship between interpersonal discussion networks and assessed and perceived individual scientific knowledge. We then examine if knowledge mediates the relationship between discussion networks and policy preferences about climate change (CC). Using nationally representative survey data, we examine the extent to which an individual’s interpersonal discussion network is related to knowledge on CC and support for CC policy. We find those who discuss climate have higher levels of perceived knowledge, but discussion is not related to individuals’ levels of assessed knowledge. We also find that knowledge does not fully mediate the relationship between discussion and policy preferences, implying that interpersonal discussion may influence CC policy preferences independent of perceived and assessed knowledge. We conclude with remarks about the importance of knowledge perception as well as offer some avenues to extend this research.  相似文献   
199.
This article discusses the objectives and formats that countertrade (barter) assumes as a means of expanding the financial and other resources of nonprofit institutions. Examples of the different types of agreements practiced by various types of institutions indicate the pervasiveness of the practice. The author calls for greater levels of institutional commitment to the proactive seeking and consummating of countertrade agreements.  相似文献   
200.
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