全文获取类型
收费全文 | 14558篇 |
免费 | 274篇 |
专业分类
管理学 | 1916篇 |
民族学 | 73篇 |
人才学 | 4篇 |
人口学 | 1145篇 |
丛书文集 | 78篇 |
教育普及 | 3篇 |
理论方法论 | 1354篇 |
综合类 | 141篇 |
社会学 | 7677篇 |
统计学 | 2441篇 |
出版年
2023年 | 80篇 |
2021年 | 77篇 |
2020年 | 201篇 |
2019年 | 304篇 |
2018年 | 314篇 |
2017年 | 445篇 |
2016年 | 343篇 |
2015年 | 259篇 |
2014年 | 335篇 |
2013年 | 2811篇 |
2012年 | 423篇 |
2011年 | 395篇 |
2010年 | 310篇 |
2009年 | 295篇 |
2008年 | 336篇 |
2007年 | 309篇 |
2006年 | 351篇 |
2005年 | 345篇 |
2004年 | 277篇 |
2003年 | 252篇 |
2002年 | 272篇 |
2001年 | 344篇 |
2000年 | 306篇 |
1999年 | 332篇 |
1998年 | 218篇 |
1997年 | 188篇 |
1996年 | 242篇 |
1995年 | 235篇 |
1994年 | 258篇 |
1993年 | 262篇 |
1992年 | 266篇 |
1991年 | 257篇 |
1990年 | 272篇 |
1989年 | 239篇 |
1988年 | 232篇 |
1987年 | 206篇 |
1986年 | 187篇 |
1985年 | 208篇 |
1984年 | 213篇 |
1983年 | 148篇 |
1982年 | 153篇 |
1981年 | 121篇 |
1980年 | 130篇 |
1979年 | 127篇 |
1978年 | 111篇 |
1977年 | 98篇 |
1976年 | 97篇 |
1975年 | 97篇 |
1974年 | 72篇 |
1973年 | 64篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
21.
1938年夏天,美国年轻学者科尼利尔斯·奥斯古德为了履行与燕京大学的合作计划,不远万里来到滇池西岸一个名不见经传的小村庄调查.1961年,他开启尘封的笔记本,整理旧资料,补充新文献,完成了<旧中国的农村生活:对云南高峣的社区研究>.70年过去,重温科尼利尔斯·奥斯古德的研究历程,我们仍会从中获得许多有益的启示. 相似文献
22.
In this work, some corporate websites of the chemical industry of Tarragona (Spain) are studied, analysing how the chemical trade associations and companies present information and/or encourage dialogue with the community on issues relating to the chemical risk and their environmental, health and safety (EHS) performance. The results suggest that the chemical industry in Tarragona uses the corporate websites mainly to disseminate information about its EHS commitments and performance, but they do not encourage dialogue with the community through the Internet. 相似文献
23.
Paul Henry Wildman 《The Australian journal of social issues》1985,20(2):136-151
Over the last ten years in Australia the social component of Australian Environmental Impact statements has gradually increased in size as the importance of Social Impact Analysis has been recognised. This commendable trend has not been without mishap, however, and there remain many areas largely ignored in Social Impact Assessment. This paper seeks to identify these areas, identifying value questions that need to be addressed in the preparation of the social impact component. 相似文献
24.
The present article assesses the adversary systemper se and asks the question, Is there any place for courtroom antics and histrionics in cases involving children? Social workers are uncomfortable before the august body of thecourt, not because of any lack of education or knowledge on their part but because of the nature of the adversary process itself. 相似文献
25.
26.
27.
Kathleen D. McCarthy 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》1996,7(4):453-456
Ohne Zusammenfassung
German translations by Monika Lütke-Daldrup. 相似文献
28.
John D. Emerson David C. Hoaglin Frederick Mosteller 《Statistical Methods and Applications》1993,2(3):269-290
Summary Meta-analyses of sets of clinical trials often combine risk differences from several 2×2 tables according to a random-effects
model. The DerSimonian-Laird random-effects procedure, widely used for estimating the populaton mean risk difference, weights
the risk difference from each primary study inversely proportional to an estimate of its variance (the sum of the between-study
variance and the conditional within-study variance). Because those weights are not independent of the risk differences, however,
the procedure sometimes exhibits bias and unnatural behavior. The present paper proposes a modified weighting scheme that
uses the unconditional within-study variance to avoid this source of bias. The modified procedure has variance closer to that
available from weighting by ideal weights when such weights are known. We studied the modified procedure in extensive simulation
experiments using situations whose parameters resemble those of actual studies in medical research. For comparison we also
included two unbiased procedures, the unweighted mean and a sample-size-weighted mean; their relative variability depends
on the extent of heterogeneity among the primary studies. An example illustrates the application of the procedures to actual
data and the differences among the results.
This research was supported by Grant HS 05936 from the Agency for Health Care Policy and Research to Harvard University. 相似文献
29.
Paul Evans 《Economic inquiry》1992,30(1):14-28
Using an overlapping-generations model in which households may have either finite or infinite horizons, I derive the implications of each horizon for the steady-state real interest rate. I then formulate an econometric model of the steady-state real interest rate and devise tests that can distinguish between finite and infinite horizons. These tests are applied to annual and quarterly U.S. data, which span the period 1875–1988. The results are inconsistent with finite horizons, and broadly consistent with infinite horizons. 相似文献
30.
Dale R. Meers D.S.W. 《Child and Adolescent Social Work Journal》1992,9(2):99-116
The more things change, the worse they get.Presented April 18, 1991, Duke University, at the Department of Psychiatry's Grand Rounds, this paper condenses, integrates and updates the author's earlier publication. Acknowledgement and thanks for funding and professional sponsorship of the four research studies this paper draws from are selectively due to the Eugene and Agnes E. Meyer Foundation, the Edgar Stern Family Fund, The National Institute for Mental Health, the Baltimore-Washington Institute for Psychoanalysis and the Department of Psychiatry, Children's Hospital National Medical Center. 相似文献