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   13381篇
  免费   224篇
管理学   1748篇
民族学   54篇
人才学   1篇
人口学   1130篇
丛书文集   80篇
教育普及   2篇
理论方法论   1265篇
综合类   339篇
社会学   6673篇
统计学   2313篇
  2021年   69篇
  2020年   195篇
  2019年   230篇
  2018年   257篇
  2017年   391篇
  2016年   301篇
  2015年   239篇
  2014年   279篇
  2013年   2187篇
  2012年   416篇
  2011年   334篇
  2010年   238篇
  2009年   254篇
  2008年   290篇
  2007年   304篇
  2006年   236篇
  2005年   372篇
  2004年   314篇
  2003年   272篇
  2002年   285篇
  2001年   321篇
  2000年   316篇
  1999年   322篇
  1998年   224篇
  1997年   215篇
  1996年   225篇
  1995年   195篇
  1994年   211篇
  1993年   188篇
  1992年   242篇
  1991年   234篇
  1990年   221篇
  1989年   224篇
  1988年   199篇
  1987年   189篇
  1986年   190篇
  1985年   181篇
  1984年   213篇
  1983年   205篇
  1982年   166篇
  1981年   142篇
  1980年   142篇
  1979年   167篇
  1978年   138篇
  1977年   122篇
  1976年   105篇
  1975年   102篇
  1974年   97篇
  1973年   94篇
  1972年   66篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
The work-welfare nexus is essential in all social policy regimes. The question is in what situations individuals should be entitled to social welfare benefits and in which situations they should be obliged to work. Social welfare law and administrative practices define mechanisms that separate the deserving poor from people able to work. This article analyses the functions and character of these "separation mechanisms" in Sweden during three periods in history: a) in rural society in the late 19th century; b) in industrial society during the successful years of the Swedish model from World War II until the late 1970s; and c) the present, including the period of welfare retrenchment and reconsideration since the early 1980s. The conclusion is that Swedish social policy has always been strongly work-oriented, but the specific form and content of the work ethic has varied under the influence of different ideologies and handled in different social policy institutions. Under specific conditions the work line has been either generous or restrictive and it has been based on structural attempts to improve the opportunities to work as well as on attempts to strongly pressure the individual to work. The work line of today is seen as an interesting attempt to combine an effort to create good work through improved work conditions and an effort to reinforce elements of work enforcement in the social insurance system.  相似文献   
72.
The author reports on a study of the liquid nitrogen treatment of warts at the Rutgers University Student Health Center. He demonstrates that liquid nitrogen therapy is a safe, effective treatment method, appropriate for use by nurses and other primary providers in a college health setting.  相似文献   
73.
74.
Although empathy has been found to distinguish effective counsellors from less effective counsellors, human services professionals who continually experience negative emotional reactions to the feelings that clients express in counselling may be at risk of developing burnout. This study examined the hypothesis that emotional empathy rather than cognitive empathy is associated with burnout. The sample of human services professionals consisted of 71 Salvation Army Officers. Multiple regression was used to investigate whether the dimensions of empathy could predict three aspects of burnout: personal accomplishment, emotional exhaustion and depersonalization. The first regression analysis indicated that personal distress and empathic concern were significant predictor of personal accomplishment. The second analysis indicated that personal distress was a significant predictor of emotional exhaustion. The third indicated that empathic concern was a significant predictor of depersonalization. Although these results support the hypothesis, personal distress was negatively associated with personal accomplishment, whereas empathic concern was positively associated with personal accomplishment. The small size of the sample may have influenced the reliability of the findings. A multidimensional approach to the role of empathy in counselling may help human services professionals to manage their emotional reactions when they engage in counselling with distressed clients.  相似文献   
75.
Since children, particularly daughters, are among the most important sources of help and support for older Americans, it has been suggested that women's increasing employment will affect filial relations. Empirical evidence on this issue is inconsistent, in part due to the use of nonprobability samples. Few studies have measured effects for men. We attempt to broaden the scope of this question beyond help to the frail elderly by asking whether employment affects filial relations in general. We examine effects of hours employed on telephone contact, visiting, feelings of closeness, filial attitudes, and assistance to biological parents, for an area probability sample of men and women over 40. There are no effects of employment for men or women on contact, closeness, or assistance. For the vast majority of this population sample, contact and assistance involve few hours per week, and thus do not seem to conflict with employment.  相似文献   
76.
77.
78.
79.
This paper considers the significance of self-organization for black and minority workers in trade unions. It embodies a review of the theoretical and empirical evidence in support of black self-organization within unions; that is, a strategy of relative autonomy rather than separatism or submersion within a race-blind union. The theoretical support is derived from arguments concerning identity, participation and power. Much of the empirical material is based upon interviews with black and white lay members and shop stewards from three branches (‘Helthten’, ‘Shaften’ and ‘Mounten’) of the National and Local Government Officers union (NALGO) and with NALGO national officials between 1989 and 1990.  相似文献   
80.
This report summarizes the proceedings of a conference on quantitative methods for assessing the risks of developmental toxicants. The conference was planned by a subcommittee of the National Research Council's Committee on Risk Assessment Methodology 4 in conjunction with staff from several federal agencies, including the U.S. Environmental Protection Agency, U.S. Food and Drug Administration, U.S. Consumer Products Safety Commission, and Health and Welfare Canada. Issues discussed at the workshop included computerized techniques for hazard identification, use of human and animal data for defining risks in a clinical setting, relationships between end points in developmental toxicity testing, reference dose calculations for developmental toxicology, analysis of quantitative dose-response data, mechanisms of developmental toxicity, physiologically based pharmacokinetic models, and structure-activity relationships. Although a formal consensus was not sought, many participants favored the evolution of quantitative techniques for developmental toxicology risk assessment, including the replacement of lowest observed adverse effect levels (LOAELs) and no observed adverse effect levels (NOAELs) with the benchmark dose methodology.  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