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:      
  示例: 沙坡头地区,人工植被区,变化  检索词用空格隔开表示必须包含全部检索词,用“,”隔开表示只需满足任一检索词即可!
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   2463篇
  免费   10篇
管理学   391篇
民族学   16篇
人口学   186篇
丛书文集   11篇
理论方法论   269篇
综合类   20篇
社会学   1191篇
统计学   389篇
  2024年   12篇
  2023年   17篇
  2021年   17篇
  2020年   52篇
  2019年   89篇
  2018年   64篇
  2017年   92篇
  2016年   65篇
  2015年   68篇
  2014年   83篇
  2013年   422篇
  2012年   91篇
  2011年   85篇
  2010年   66篇
  2009年   59篇
  2008年   77篇
  2007年   70篇
  2006年   63篇
  2005年   70篇
  2004年   64篇
  2003年   57篇
  2002年   57篇
  2001年   54篇
  2000年   47篇
  1999年   46篇
  1998年   38篇
  1997年   37篇
  1996年   28篇
  1995年   33篇
  1994年   31篇
  1993年   15篇
  1992年   16篇
  1991年   27篇
  1990年   20篇
  1989年   14篇
  1988年   28篇
  1987年   23篇
  1986年   20篇
  1985年   17篇
  1984年   27篇
  1983年   25篇
  1982年   17篇
  1981年   25篇
  1980年   22篇
  1979年   16篇
  1978年   18篇
  1977年   16篇
  1976年   14篇
  1975年   12篇
  1974年   13篇
排序方式: 共有2473条查询结果,搜索用时 0 毫秒
101.
The study analyses how remittances to Nigeria affect the labour supply of recipients using Propensity Score Matching (PSM) and a Log‐Linear regression model, with data from the 2013 Nigerian General Household Survey. The PSM results show that for the entire sample, the difference between the average amount of labour supplied per week by those that receive remittances and the amount they would have supplied without remittances is insignificant. The marginal impact analysis also shows that, ceteris paribus, the average labour supply for all recipients is inelastic to remittances. The results from the sub‐group analysis, however, show that receiving remittances negatively affects the labour supply of the self‐employed in agriculture, teenagers and the elderly. These results led us to the recommendation that policies to increase the inflow of remittances should be encouraged but in tandem with programmes to educate farmers on the benefit of investing remittances received in their farming business.  相似文献   
102.
This article explores literatures from various sources to highlight and understand differences among key players surrounding the perceived nature and role of civil society in research from different literature streams. Including Civil Society Organisations (CSOs) in research activities is an integral part of a broad drive towards integration of science and society. Interest in CSO inclusion in research is widespread, but lacks a coherent focus and clarity on what CSOs are. Without this clarity, CSO-inclusive research, or policy, may be ineffective. This article addresses this gap in knowledge by presenting findings from an exploration of academic, policy and research project literature in order to come to a view on CSOs in research. This culminates in a typology of CSOs and provides a means of identifying types of CSOs. The typology shows four main types of CSO (common cause, shared voice, research-oriented, commercially oriented) and provides a definition for each type, along with a basis for the definition; an example of each; some typical terminology; typical area of activity; properties; typical mission; key areas of interest and their ‘action logic’ in research.  相似文献   
103.
Stalking is relatively common yet little is known of the longer-term health effects of stalking. Using the National Violence Against Women survey, we estimated lifetime stalking victimization among women and men, ages 18 to 65, identified correlates of being stalked, and explored the association between being stalked and mental and physical health status. With a criterion of being stalked on more than one occasion and being at least "somewhat afraid," 14.2% of women and 4.3% of men were victims. Among those stalked, 41% of women and 28% of men were stalked by an intimate partner. Women were more than 13 times as likely to be "very afraid" of their stalker than men. Negative health consequences of being stalked were similar for men and women; those stalked were significantly more likely to report poor current health, depression, injury, and substance use. Implications for victims, service providers, and the criminal justice system were reviewed.  相似文献   
104.
Workplaces are ideal contexts for mentoring relationships between adults and older youth. To teach the competencies required in contemporary workplaces (many of which are equally useful in other settings), mentors need to use sophisticated teaching behaviors, which the authors characterize as reflective questioning and problem solving.  相似文献   
105.
Adolescence is often assumed to be the most important period of life for understanding teen childbearing risk. Developmental perspectives challenge that assumption, offering the possibility that early childhood characteristics may have unique and lasting effects on the risk for teen childbearing. This study examined family life risk factors (socioeconomic status, family stress, and parental involvement in education) and how their effects on teen childbearing risk varied, depending on the childhood age at which they were experienced. Prospective life history data from the National Child Development Study of Great Britain were used to study a birth cohort of 4,928 British women, 15.3% of who became pregnant as teens. This study demonstrated that data from early childhood significantly contribute to the understanding of teen childbearing risk.  相似文献   
106.
We analyze the wealth ejfects of the Texaco racial discrimination lawsuit both on the shareholders of Texaco and its major U.S. competitors. Employing a comprehensive data set which included every case docket entry and every Wall Street Journal article on the case as an experimental stimulus, our findings suggest that the overall cost of the case to Texaco shareholders exceeded $500 million, that Texaco's tribulations had little, if any, impact on the share prices of its major competitors, and that Wall Street Journal coverage of the case was highly correlated with significant changes in Texaco stock prices. This last finding provides significant support for Hite 's suppostion that newspaper editors “key ” on ex post stock price changes in selecting the events to be covered in the next day's edition. The authors are grateful to Kee Chung for helpful comments on earlier drafts and also acknowlege the help-ful assistance of the staff of the law library at the Cecil C. Humphreys School of Law at The University of Memphis.  相似文献   
107.
Multi-valued strategy-proof social choice rules   总被引:6,自引:4,他引:6  
In this paper we introduce a new definition of strategy-proofness for multi-valued social choice correspondences. We prove two Gibbard-Satterthwaite type results for strategy-proof social choice correspondences. These results show that allowing multiple outcomes as social choices will not necessarily lead to an escape from the Gibbard-Satterthwaite impossibility theorem. Received: 24 January 2001/Accepted: 19 March 2001  相似文献   
108.
OBJECTIVE: Some information on the prevalence of adverse life experiences is available for the general population and college students, but the extent, nature, and severity of these events is unclear. PARTICIPANTS: The authors recruited undergraduate college students (N = 6,053) from diverse academic settings (public and private schools) and geographic locations. METHODS: They examined the prevalence, nature, severity, and disclosure of adverse events, in addition to reports of posttraumatic stress disorder (PTSD) symptomatology within the sample. RESULTS: Across multiple studies, prevalence rates of adverse events ranged from 55.8% to 84.5%, replicating previous findings in larger samples. In a subset of undergraduate students (n = 97) who the authors interviewed in greater depth, 9% reported symptoms of clinical PTSD and an additional 11% reported subclinical symptoms. CONCLUSIONS: Research using college samples for the study of stressful life events is a useful and reasonable strategy. The authors discuss implications for research, as well as screening and referral services at universities.  相似文献   
109.
Australian research has demonstrated that students with a disability are more likely to remain out of the full‐time workforce. These research findings have been the catalyst for a call for a comprehensive career development and transition planning approach for all students with disabilities in schools as well as for employers to rethink the role of people with disabilities in the workforce. In the Australian context the transition from school for individuals with a disability is complicated by a disparate and fragmented group of service agencies providing a range of services, including employment, supported accommodation, recreation and leisure pursuits, as well as training and placement, along with, at times, a deep‐seated prejudice towards people with disabilities in the market place. This paper reviews a number of issues and challenges confronting individuals with a disability making the transition from school to the post‐school environment.  相似文献   
110.
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