全文获取类型
收费全文 | 19524篇 |
免费 | 471篇 |
国内免费 | 1篇 |
专业分类
管理学 | 2623篇 |
民族学 | 95篇 |
人才学 | 1篇 |
人口学 | 1691篇 |
丛书文集 | 98篇 |
教育普及 | 2篇 |
理论方法论 | 1774篇 |
综合类 | 398篇 |
社会学 | 9279篇 |
统计学 | 4035篇 |
出版年
2023年 | 102篇 |
2021年 | 116篇 |
2020年 | 293篇 |
2019年 | 386篇 |
2018年 | 427篇 |
2017年 | 625篇 |
2016年 | 465篇 |
2015年 | 353篇 |
2014年 | 441篇 |
2013年 | 3357篇 |
2012年 | 603篇 |
2011年 | 527篇 |
2010年 | 368篇 |
2009年 | 412篇 |
2008年 | 439篇 |
2007年 | 443篇 |
2006年 | 404篇 |
2005年 | 518篇 |
2004年 | 437篇 |
2003年 | 387篇 |
2002年 | 413篇 |
2001年 | 485篇 |
2000年 | 468篇 |
1999年 | 470篇 |
1998年 | 336篇 |
1997年 | 312篇 |
1996年 | 304篇 |
1995年 | 274篇 |
1994年 | 328篇 |
1993年 | 271篇 |
1992年 | 346篇 |
1991年 | 347篇 |
1990年 | 309篇 |
1989年 | 308篇 |
1988年 | 278篇 |
1987年 | 264篇 |
1986年 | 269篇 |
1985年 | 255篇 |
1984年 | 285篇 |
1983年 | 263篇 |
1982年 | 225篇 |
1981年 | 178篇 |
1980年 | 191篇 |
1979年 | 219篇 |
1978年 | 179篇 |
1977年 | 162篇 |
1976年 | 136篇 |
1975年 | 140篇 |
1974年 | 130篇 |
1973年 | 112篇 |
排序方式: 共有10000条查询结果,搜索用时 546 毫秒
71.
According to traditional error theory, sentiment measurements vary unsystematically from individual to individual. However, we find some patterned deviation in sentiments that characterize subsets of respondents within a seemingly homogeneous population. After demonstrating the existence of such patterns, we report an exploratory study aimed at identifying social characteristics of people with different patterns of sentiments. People embedded in multiple social networks have exaggerated sentiments that contour cultural patterns, and people with few social associations have attenuated sentiments conveying cultural detachment. In addition, people with disciplinary parents and romantic privation have some distinctive sentiments, depending on their gender. 相似文献
72.
Although the health-enhancing effects of physical exercise have been well documented, less is known about how exercise benefits stressed employees psychologically. This article examines exercise as a coping response, and identifies changes in self-schemata (a person's underlying belief systems about him or herself) as the means by which exercise affects coping resources. In addition, by drawing on schema theory and the exercise literature, the active components of an exercise programme and the individuals who might enhance their ability to cope with stress through such a programme are identified. 相似文献
73.
We propose some estimators of noncentrality parameters which improve upon usual unbiased estimators under quadratic loss. The distributions we consider are the noncentral chi-square and the noncentral F. However, we give more general results for the family of elliptically contoured distributions and propose a robust dominating estimator. 相似文献
74.
Bruce R. Hopkins Cynthia L. Moore 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》1992,3(2):194-214
The evolving democracies of Eastern Europe and the former USSR republics are keenly interested in establishing charities. They have little law on this issue because their former governments did not encourage the development of charities. This article compares US and English regulation of charities and proposes a regulatory framework based on what the authors believe are the best attributes of both. Although the framework is based on the common law system, it can be adapted to the civil law systems of the Eastern European nations and the former USSR republics. The article includes such issues as developing a body of law, tax relief and creating a regulatory agency.Mr Hopkins is a lawyer with Powers, Pyles & Sutter, 1275 Pennsylvania Ave., N.W., Washington, D.C. 20007, and author ofThe Law of Tax-Exempt Organizations (1992a).Ms Moore is also a lawyer, 5908 N. 35th St., Arlington, Virginia 22207.The authors would like to thank Mssrs Kersi Shroff and Stephen F. Clarke, Senior Legal Specialists, American-British Law Division, Library of Congress, and Mr. William H. Morris, an attorney at Steptoe & Johnson, Washington, D.C., for their kind assistance during the researching of this article. 相似文献
75.
R Carbino 《Child welfare》1992,71(6):497-509
For reasons discussed in this article, it is in the nature of family foster care that allegations of abuse and/or neglect in foster homes will arise. How an agency acts before, during, and after these eventualities has long-lasting implications for the well-being of foster children and of foster parents and their own children, as well as for foster home recruitment. 相似文献
76.
77.
Impacts of complex emergencies or relief interventions have often been evaluated by absolute mortality compared to international standardized mortality rates. A better evaluation would be to compare with local baseline mortality of the affected populations. A projection of population-based survival data into time of emergency or intervention based on information from before the emergency may create a local baseline reference. We find a log-transformed Gaussian time series model where standard errors of the estimated rates are included in the variance to have the best forecasting capacity. However, if time-at-risk during the forecasted period is known then forecasting might be done using a Poisson time series model with overdispersion. Whatever, the standard error of the estimated rates must be included in the variance of the model either in an additive form in a Gaussian model or in a multiplicative form by overdispersion in a Poisson model. Data on which the forecasting is based must be modelled carefully concerning not only calendar-time trends but also periods with excessive frequency of events (epidemics) and seasonal variations to eliminate residual autocorrelation and to make a proper reference for comparison, reflecting changes over time during the emergency. Hence, when modelled properly it is possible to predict a reference to an emergency-affected population based on local conditions. We predicted childhood mortality during the war in Guinea-Bissau 1998-1999. We found an increased mortality in the first half-year of the war and a mortality corresponding to the expected one in the last half-year of the war. 相似文献
78.
79.
This paper documents and analyzes how landholders managed to uplift status of their neighborhood from hazard land as designated by the 1978 master plan to a regularized residential settlement through land regularization in Dar es Salaam city. Specifically, explores policy framework governing land regularization and how the local community explored the opportunities it offers. Documents the local community planning and land regularization processes undertaken focusing on land use planning, drainage construction, and cadastral survey and discuses how financial resources were raised, trust was built as well as factors which sustained community involvement towards meeting their interests of securing tenure. The paper also, draws challenges facing land regularization policy and recommends areas for further interventions commensurate with the human dimension challenges in securing tenure.Underlying community involvement, those aspects of community, which have been connected to the idea of social capital namely existence of committed leadership in land development matters, embracing mechanism for participatory decision making process and educational background to local leaders were particularly important in determining success for the case. Others include economic ability to contribute, high proportion of landholder settlers, land conflict task force formulation, local consensus to solve commonly felt problems, existence of strong community organization, and unwritten norms put in place to regulate individual behavior in building construction. Weak legal recognition of informal settlement, lengthy and bureaucratic procedures in planning and approval of regularization plans, weak knowledge on land management matters, short-term title deeds with low financial betterments, political popularity are identified critical challenges.Some of recommendations put forward include formalization of the grass-roots role in decision-making, decentralizing some of land development control functions to sub-ward leaders and training the same in basic land management matters. Others include definition of norms; by-laws and government facilitation of informal land parceling. Besides community support should be sought so as to create partnership in the promotion of security of tenure in informal areas. The study concludes that, unless land development activities ongoing in informal settlements are closely monitored and regulated as the settlement grow, it will be too costly socially and economically to retrofit once the settlement have identified. 相似文献
80.