全文获取类型
收费全文 | 21837篇 |
免费 | 639篇 |
专业分类
各国政治 | 1063篇 |
工人农民 | 827篇 |
世界政治 | 1953篇 |
外交国际关系 | 965篇 |
法律 | 12209篇 |
中国共产党 | 2篇 |
中国政治 | 124篇 |
政治理论 | 5109篇 |
综合类 | 224篇 |
出版年
2021年 | 123篇 |
2020年 | 290篇 |
2019年 | 357篇 |
2018年 | 499篇 |
2017年 | 558篇 |
2016年 | 630篇 |
2015年 | 404篇 |
2014年 | 467篇 |
2013年 | 2470篇 |
2012年 | 552篇 |
2011年 | 579篇 |
2010年 | 472篇 |
2009年 | 507篇 |
2008年 | 617篇 |
2007年 | 658篇 |
2006年 | 629篇 |
2005年 | 547篇 |
2004年 | 571篇 |
2003年 | 558篇 |
2002年 | 516篇 |
2001年 | 772篇 |
2000年 | 704篇 |
1999年 | 602篇 |
1998年 | 356篇 |
1997年 | 315篇 |
1996年 | 269篇 |
1995年 | 259篇 |
1994年 | 305篇 |
1993年 | 283篇 |
1992年 | 396篇 |
1991年 | 424篇 |
1990年 | 375篇 |
1989年 | 392篇 |
1988年 | 371篇 |
1987年 | 366篇 |
1986年 | 381篇 |
1985年 | 366篇 |
1984年 | 321篇 |
1983年 | 340篇 |
1982年 | 280篇 |
1981年 | 263篇 |
1980年 | 194篇 |
1979年 | 264篇 |
1978年 | 183篇 |
1977年 | 157篇 |
1976年 | 142篇 |
1975年 | 132篇 |
1974年 | 157篇 |
1973年 | 123篇 |
1972年 | 117篇 |
排序方式: 共有10000条查询结果,搜索用时 8 毫秒
951.
Maria Donald Jayne Lucke Michael Dunne Beverley Raphael 《Journal of youth and adolescence》1995,24(4):453-464
The differences between male and female adolescents' emotional reactions to their most recent occasion of sexual intercourse were examined. The sample included 932 sexually active Australian secondary school students who completed a self-report questionnaire concerning their sexual behavior. The majority of young people reported that they felt happy or good following their most recent occasion of sex. Females were more likely than males to report negative emotions such as feeling bad and used, but there was no difference between the percentage of males and the percentage of females who reported feeling guilty. Girls were more likely to feel bad, used, or guilty last time if they were drunk/high or had sex with someone who was not a steady partner. Boys who had sex with someone other than a steady partner last time were more likely to feel guilty. Peer and parental influences were also associated with feelings of guilt. Girls who were more confident that they could talk to one of their parents/guardians about sex, and boys who believed that most of their peers were sexually active, were less likely to have felt guilty.Received B.A. (Hons) from University of Queensland. Research interests include adolescents mental and sexual health.Received B.A.(Hons) from University of Queensland. Interested in the areas of sex roles and sexual behavior among adolescents.Received Ph.D. from Murdoch University. Research interests include population studies of sexual behavior and mental health.Received M.B.B.S., M.D. from University of Sydney. Research interests include adolescent health, psychological response in disasters, coping with grief and loss and living with HIV/AIDS. 相似文献
952.
Mark D. Weist Abby H. Freedman David A. Paskewitz Eric J. Proescher Lois T. Flaherty 《Journal of youth and adolescence》1995,24(6):705-721
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
953.
Thomas M. Fraker Alberto P. Martini James C. Ohls Michael Ponza 《Journal of policy analysis and management》1995,14(3):372-392
The recent report produced by Vice President Gore's committee on government efficiency highlights the importance of streamlining government operations. But often there are trade-offs between administrative streamlining and accomplishing substantive program objectives. This article examines these tradeoffs in the context of the Food Stamp Program, an important component of the United States' safety net for providing low-income assistance. We estimate impacts on both administrative costs and substantive outcomes (participant food expenditures) resulting from issuing program benefits in the form of checks rather than the usual food coupons. The findings, which are based on experimental tests of the cashout approach in parts of Alabama and California, suggest that significant cost savings can be attained through cashout but that these savings may be achieved at the cost of weakening the program's ability to achieve its substantive objective of encouraging food use. 相似文献
954.
Christopher J. O'Leary Robert G. Spiegelman Kenneth J. Kline 《Journal of policy analysis and management》1995,14(2):245-269
Unemployment insurance is intended to reduce hardship by providing labor force members with partial wage replacement during periods of involuntary unemployment. However, in performing this income maintenance function, unemployment insurance may prolong spells of unemployment. Evidence from a field experiment conducted in Illinois in 1984 suggested that offering unemployment insurance claimants a modest cash bonus for rapid reemployment would increase the speed of return to work and reduce program costs. In 1988 a similar experiment, examining several different bonus offers, was conducted in the state of Washington. Evidence from the Washington experiment indicates that bonus offers do change job seeking behavior, but that only relatively generous bonus offers—about six times the weekly benefit amount—should be expected to significantly change the behavior of people eligible for unemployment benefits. 相似文献
955.
956.
Federalism, as a concept and as a reality, received assistancefrom a variety of sources during 19941995. Opinion pollsrevealed a public strongly supportive of shifts in the balanceof power between federal and state governments. The new Republican-controlledCongress, bent on devolving authority to the states, busieditself with an ambitious legislative agenda. The DemocraticPresident pursued his principles of federalism and intergovernmentalrelations by supporting the unfunded mandates bill and by increasingthe use of the administrative waiver. The U.S. Supreme Courtbolstered federalism with its rulings in cases such as Lopez,a state challenge to the federal Gun-Free School Zones Act.The new mood in Washington, D.C. was complemented by state leadersanxious to take on the challenges of a rebalanced federal system 相似文献
957.
Are federal courts sympathetic to local and state officials'cost concerns, particularly when it comes to meeting the requirementsof the Americans with Disabilities Act? This is the fundamentalquery taken up by this analysis. After examining twenty-eightfederal ADA cases where state and local officials have goneto court claiming that complying with this civil rights measurewould be unduly burdensome, this study comes up with mixed findings.In some cases, the courts have been sensitive to cost concernsbut, in others, they have not. Despite these inconclusive findings,this study does cast some light on what state and local officialsmust do if they expect federal courts to be sensitive to theirconcerns. 相似文献
958.
Abstract. Roubini and Sachs provided the first systematic test of the idea that political structure the size, composition, diversity, and/or stability of a governing cabinet - is related to budget deficits. In this paper, we take issue with several of Roubini and Sachs' choices concerning data and operationalization, and argue that their approach cannot offer clear conclusions about the relationship between national political structure and budget deficits. We test the 'strength of government' hypothesis using central government finance data on 16 countries, 1959–1990. We measure deficits in a way that maximizes comparability across countries but avoids the potential problems of standardizing by GDP. We examine carefully the definition and measurement of 'strength of government', in light of recent theoretical and empirical work in comparative politics. We perform pooled time-series regression analysis of deficit change in 16 OECD countries for the period 1959–1990. We argue that while structural differences between governments may have little impact on deficits during good economic times, they may become especially noticeable and influential during periods when governments struggle to cope with severe economic problems. 相似文献
959.
Lionel Tiger Gray L. Dorsey James T. Fisher Stephen J. Whitfield Abraham Edel 《Society》1995,32(3):79-96
He has also served as research director of the Guggenheim Foundation from 1972–1984. Among his books are Men in Groups; The Imperial Animal(with Robin Fox); The Manufacture of Evil;and The Pursuit of Pleasure. 相似文献
960.
He has served as a consultant to the president’s Foreign Intelligence Advisory Board, the National Security Council, and related
agencies of the U.S. government. He has written, coauthored, or edited over sixteen books on intelligence and national security. 相似文献