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   98932篇
  免费   3325篇
  国内免费   95篇
管理学   12773篇
劳动科学   24篇
民族学   864篇
人才学   36篇
人口学   7046篇
丛书文集   2890篇
教育普及   1篇
理论方法论   9820篇
现状及发展   1篇
综合类   7214篇
社会学   42323篇
统计学   19360篇
  2023年   539篇
  2022年   478篇
  2021年   758篇
  2020年   1633篇
  2019年   2321篇
  2018年   2188篇
  2017年   3385篇
  2016年   2537篇
  2015年   2373篇
  2014年   3021篇
  2013年   19344篇
  2012年   2910篇
  2011年   2815篇
  2010年   2656篇
  2009年   2923篇
  2008年   2712篇
  2007年   2569篇
  2006年   2749篇
  2005年   2883篇
  2004年   2459篇
  2003年   2127篇
  2002年   2254篇
  2001年   2253篇
  2000年   1938篇
  1999年   1829篇
  1998年   1572篇
  1997年   1413篇
  1996年   1390篇
  1995年   1397篇
  1994年   1320篇
  1993年   1313篇
  1992年   1290篇
  1991年   1204篇
  1990年   1185篇
  1989年   1040篇
  1988年   1116篇
  1987年   987篇
  1986年   887篇
  1985年   1069篇
  1984年   1126篇
  1983年   1011篇
  1982年   929篇
  1981年   855篇
  1980年   808篇
  1979年   870篇
  1978年   763篇
  1977年   684篇
  1976年   653篇
  1975年   623篇
  1974年   515篇
排序方式: 共有10000条查询结果,搜索用时 240 毫秒
771.
In this article, the authors present a case example of a Chinese American lesbian woman who seeks counseling for career decision making. The client's career issues stem from cultural issues that have created a dichotomy in her life. Using an ecological model, the authors dissect the case, propose interventions, and identify potential problems that may arise.  相似文献   
772.
This paper describes the theoretical foundations, empirical findings, and practical and philosophical implications of the Boston Area Diary Study (BADS), a study of the caring behavior of 44 participants over one calendar year. In particular, the paper presents an identification theory of care and discusses how it shaped the conceptualization, collection, and analysis of the data in a year-long diary study of daily voluntary assistance. The findings from the BADS (1) theoretically confirm the identification theory of care; (2) methodologically capture how individuals perceive and carry out caring behavior as a unity; and (3rpar; empirically document the existence of a moral citizenship in America that is substantially more vigorous than is implied by the usual indicators of civic and political citizenship.  相似文献   
773.
The development and initial psychometric properties of an adolescent gambling problem severity measure are described. The scale, based on a revision of the South Oaks Gambling Screen (Lesieur & Blume, 1987), was administered to 1,101 older (ages 15 to 18) Minnesota adolescents as part of a state-wide gambling survey. Study results indicated that the scale had moderate internal consistency reliability and was significantly related to alternate measures of problem severity for male subjects. Because the rate and severity of gambling among females was very low, the psychometric adequacy of the scale for females is not known at this time. The implications of study findings to the conceptual understanding of adolescent gambling problem severity as well as study limitations and future research needs, are discussed.Support for the study was provided by the Minnesota Department of Human Services and the Center for Addiction Studies, University of Minnesota, Duluth. The authors gratefully acknowledge the assistance from Robert Blum, Linda Harris, Durand Jacobs, J. Laundergan, Alan Mathiason, Brenda Miller, James Schaefer, school officials from the participating high schools, and interviewers who assisted with the telephone survey.  相似文献   
774.
The issue of work place hazards that may threaten the health of an unborn child has long been problematic for women, business decision-makers, and lawmakers. The desire to protect the developing foetus must be balanced against a woman's legal right to get and keep the job of her choice. The issue has never been easy to resolve, as this historical analysis shows. An overview of the potential effects of work place hazards on reproductive health is presented. Relevant fair employment laws are summarized, and a brief history of court cases and employer practices is provided. It is argued that ultimately, foetal protection policies had little or nothing to do with protection of foetuses. They may have had more to do with protecting the employer from potential liability and with perceptions of women's status in the work place than with protecting the next generation. Finally, suggestions for future research are presented.  相似文献   
775.
对普通高校体育教学改革的几点认识   总被引:1,自引:0,他引:1  
根据目前高校体育教学的现状 ,提出高校体育教育要以培养学生学习体育的兴趣为原则 ,调整教学内容、改善教学方法 ,要使学生养成终身锻炼的习惯。  相似文献   
776.
文化素质教育:科学教育与人文教育融合的起点   总被引:2,自引:1,他引:1  
促进科学技术教育 (简称科学教育 )与人文教育的融合 ,是 2 1世纪高等教育改革与发展的必然趋势。本文认为 ,文化素质教育是在新的历史时期促进我国科学教育与人文教育融合的切入点。作者在此基础上对如何在高校推进文化素质教育作了若干探讨  相似文献   
777.
开放式基金营销改善性分析   总被引:1,自引:0,他引:1  
我国开放式基金已经进入实务阶段 ,但是销售方面情况不尽人意。这是因为传统的方法已经不能适应这种新的金融投资工具的需要。借鉴国外经验结合中国实际情况 ,可以利用商业银行网点、保险公司、证券公司网点、金融策划机构等其它组织来拓宽销售渠道 ;改进收费方式和根据不同情况设计具体费率 ;加强产品创新 ,设计多种金融产品模式 ,并且为顾客提供更人性化的服务 ;树立基金品牌 ,培养一批品牌基金经理 ,并且加强对投资者的教育。这些办法都可能改善现在基金的销售情况 ,实践也慢慢证明了其中观点  相似文献   
778.
县域经济作为宏观与微观结合的中观层面 ,随着市场经济的发展已越来越引起大家的重视。本文通过对重庆铜梁县域经济调查 ,认为它在适应市场的改革、文化和城市建设、政府职能的转变等方面有许多可取的经验值得推广 ,也存在一些内地县市所共有的问题需要解决。本文试图介绍铜梁县域经济发展的主要成就 ,归纳内地县域经济普遍存在的一些问题 ,并提出一些具体的解决思路  相似文献   
779.
A powerful practical solution is by far the most desired output when making decisions under the realm of uncertainty on any safety-critical marine or offshore units and their systems. With data and information typically being obtained incrementally, adopting Bayesian network (BN) is shown to realistically deal with the random uncertainties while at the same time making risk assessments easier to build and to check. A well-matched methodology is proposed to formalize the reasoning in which the focal mechanism of inference processing relies on the sound Bayes's rule/theorem that permits the logic. Expanding one or more influencing nodal parameters with decision and utility node(s) also yields an influence diagram (ID). BN and ID feasibility is shown in a marine evacuation scenario and that of authorized vessels to floating, production, storage, and offloading collision, developed via a commercial computer tool. Sensitivity analysis and validation of the produced results are also presented.  相似文献   
780.
The small sample performance of least median of squares, reweighted least squares, least squares, least absolute deviations, and three partially adaptive estimators are compared using Monte Carlo simulations. Two data problems are addressed in the paper: (1) data generated from non-normal error distributions and (2) contaminated data. Breakdown plots are used to investigate the sensitivity of partially adaptive estimators to data contamination relative to RLS. One partially adaptive estimator performs especially well when the errors are skewed, while another partially adaptive estimator and RLS perform particularly well when the errors are extremely leptokur-totic. In comparison with RLS, partially adaptive estimators are only moderately effective in resisting data contamination; however, they outperform least squares and least absolute deviation estimators.  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