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   23192篇
  免费   581篇
各国政治   1042篇
工人农民   818篇
世界政治   1818篇
外交国际关系   849篇
法律   13969篇
中国共产党   3篇
中国政治   92篇
政治理论   4920篇
综合类   262篇
  2020年   262篇
  2019年   319篇
  2018年   430篇
  2017年   502篇
  2016年   542篇
  2015年   382篇
  2014年   442篇
  2013年   2358篇
  2012年   575篇
  2011年   597篇
  2010年   470篇
  2009年   510篇
  2008年   604篇
  2007年   604篇
  2006年   584篇
  2005年   508篇
  2004年   528篇
  2003年   550篇
  2002年   510篇
  2001年   909篇
  2000年   828篇
  1999年   681篇
  1998年   350篇
  1997年   331篇
  1996年   267篇
  1995年   275篇
  1994年   320篇
  1993年   282篇
  1992年   468篇
  1991年   507篇
  1990年   452篇
  1989年   478篇
  1988年   442篇
  1987年   450篇
  1986年   474篇
  1985年   437篇
  1984年   391篇
  1983年   418篇
  1982年   317篇
  1981年   302篇
  1980年   232篇
  1979年   331篇
  1978年   220篇
  1977年   195篇
  1976年   180篇
  1975年   179篇
  1974年   209篇
  1973年   184篇
  1972年   166篇
  1971年   144篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
931.
With new sources of cross-national data appearing on income distribution and the characteristics of redistributional policy instruments, it is now possible to take the comparative analysis of welfare states well beyond the conventional focus on government expenditures. This study of 18 OECD nations examines the linkages between various aspects of the income redistribution process, elaborates a typology of welfare state regimes and locates the political origins of each of these regimes.  相似文献   
932.
In recent yems, rapid growth hm occurred in both the number and diversity of university-industry progrmns in the United States. While little comprehensive assessment of these programs exists to date, this paper argues that a systematic empirical analysis of a cmpany's perception of universities as knowledge sources is critical toa clear understanding of the newallknces between industry and academia. From a survey of216 companies, a pattern emerges where the sources of technical knowledge perceived as important by industry are complex and highly interrelated, and they also vary according to the characteristics of companies, especially size. It is seen that university research rather than universities as institutions per se are critical ingredients to the development of new products and production processes.  相似文献   
933.
Research concerning immigrant and ethnic business formation has focused almost exclusively upon the enterprises of economically motivated immigrants and long established refugees. Ignored are the businesses opened by recent refugees who, since 1975, account for 20% of the legal entrants to the United States. Because refugees have different social and demographic characteristics than economic immigrants and come to the U.S. for different reasons, they reveal distinct entrepreneurial behaviors. Relying on a sample of 67 Soviet Jewish and Vietnamese enterprises in California, this study explores the prospects for refugee self-employment. It considers the characteristics of self-employed refugees, their resources and motives for openingbusinesses, and their use of community-based sources of capital, labor, customers and information.  相似文献   
934.
Policy implementation has been an infrequently studied process although it has become increasingly evident that the implementation processes of policy development, policy approval, and policy application can shape and delay prospective implementation of legislation. The current study analyzes the implementation of P.L. 99–457 (Part H) the Education for the Handicapped Amendments of 1986. This law provides the states with planning money from the federal government to design a comprehensive interagency, multidisciplinary program of services for children with handicapping conditions and their families. Ratings were taken from key administrators and citizens knowledgeable about the law on state progress in implementing the fourteen requirements of the law and also on proposed influential conditions that might affect that implementation. Additional demographic information was obtained for the fifty states. The factor that seemed to be most influential in a subset of 35 states was the prior presence in the state of systems for interagency planning and development. Neither prior history of early childhood services, available resources, wealth of the state, or geographic region appeared to have a significant influence on policy development. There was some indication that different factors might become influential in the next phase of implementation, policy approval. It appears that progress in state policy development may be linked to the special requirements of the legislation itself and to prior availability of institutional structures that make mandated collaborative efforts more possible.  相似文献   
935.
About 93.1 million workers were covered under workers' compensation laws in 1988--an increase of 11 percent from the 1984 total. Benefit amounts totaled $30.7 billion--an increase of about 56 percent since 1984. Of the total payments made under the workers' compensation program, $17.6 billion went to disabled workers, $1.6 billion to their survivors, and $11.5 billion for medical care. The Social Security Administration (SSA) is interested in measuring economic security in the United States, and workers' compensation plays a large role in that measurement. This article represents one part of our overall effort to determine the roles the various income-maintenance programs play in helping citizens of the United States achieve economic security. The figures presented here provide readers with an opportunity to review workers' compensation program operations during much of the 1980's. Workers' compensation is also important to SSA because that program is directly related to the Social Security Disability Insurance program. Since 1965, Social Security disability benefits have been subject to reduction if the beneficiary also receives workers' compensation and the combined benefits exceed 80 percent of previous earnings. In addition, SSA has been directly involved in providing income maintenance for disability from work-related diseases since 1969 when the Federal Black Lung benefits program was established.  相似文献   
936.
Robert J. Myers 《Society》1992,29(4):70-73
He is coeditor (with Kenneth W. Thompson) of Truth and Tragedy: A Festschrift for Hans J. Morgenthau,and editor of The Political Morality of the IMF.He is currently writing a book on U.S. foreign policy.  相似文献   
937.
John J. Conley 《Society》1992,29(5):11-15
He teaches in the department of philosophy at Fordham University in New York City. He has published widely on ethical topics.  相似文献   
938.
939.
940.
Explored the influence of life stress as mediated or moderated by locus of control, family environment, social support, and coping style on psychological adjustment and school performance in 164 ninth graders from Baltimore. Gender differences in findings were shown. For boys, family cohesion was the only variable found to protect against the effects of stress. Family cohesion did not serve protective functions for girls, and along with overall social support, was associated with increased vulnerability to school problems. The report of problem-focused coping strategies exerted a number of protective functions for girls only. External locus of control was found to increase boys' and girls' vulnerability to the effects of life stress. Empirical development of interventions to improve the psychosocial adjustment of inner-city adolescents is discussed.Received Ph.D. from Virginia Polytechnic Institute and State University in 1991. Research interests include evaluation of school mental health services, empirical development of interventions for children, and the impact of violence on urban youth.Received B.A. from Cornell University. Interests include stress and coping in children, identification of resilience factors, and evaluation of child mental health systems of care.Received Ph.D. from the University of Oklahoma in 1967. Research interests include psychophysiology, sleep disorders, and biofeedback and instrumentation.Received B.A. from Loyola College. Interested in applied work with adolescents and adults.Received M.D. from Duke University in 1968. Research interests include training in child and adolescent psychiatry, adolescent psychopathology, and the development of school mental health programs.  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