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   19038篇
  免费   357篇
各国政治   552篇
工人农民   1541篇
世界政治   862篇
外交国际关系   661篇
法律   11437篇
中国共产党   34篇
中国政治   138篇
政治理论   4027篇
综合类   143篇
  2021年   70篇
  2020年   180篇
  2019年   155篇
  2018年   1470篇
  2017年   1435篇
  2016年   1298篇
  2015年   325篇
  2014年   272篇
  2013年   987篇
  2012年   439篇
  2011年   1173篇
  2010年   1199篇
  2009年   846篇
  2008年   1058篇
  2007年   1040篇
  2006年   379篇
  2005年   399篇
  2004年   492篇
  2003年   401篇
  2002年   292篇
  2001年   364篇
  2000年   336篇
  1999年   268篇
  1998年   186篇
  1997年   136篇
  1996年   171篇
  1995年   147篇
  1994年   153篇
  1993年   134篇
  1992年   207篇
  1991年   261篇
  1990年   220篇
  1989年   209篇
  1988年   230篇
  1987年   215篇
  1986年   231篇
  1985年   205篇
  1984年   181篇
  1983年   176篇
  1982年   113篇
  1981年   133篇
  1980年   104篇
  1979年   112篇
  1978年   102篇
  1977年   97篇
  1976年   70篇
  1975年   73篇
  1974年   68篇
  1973年   79篇
  1969年   53篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
881.
882.
Body image and weight loss beliefs and behaviors were assessed in 341 female and 221 male high school students. Estimates of body dissatisfaction varied depending on the measurement strategy used. Despite having similar weight distributions around the expected norm, girls were significantly more dissatisfied with their bodies than boys. Body Mass Index was positively related to body dissatisfaction in girls and boys, while higher exercise levels were related to higher body satisfaction in boys. Nearly two-thirds of girls and boys believed being thinner would have an impact on their lives, but the majority of girls believed this would be positive while the majority of boys believed this would be negative. Thirteen percent of female subjects reported using one or more extreme weight loss behavior at least weekly. Beliefs regarding the effectiveness of different weight loss measures were assessed. Weight loss behaviors in this Australian sample appear similar to comparable U.S. samples.Received Ph.D. from University of Tasmania. Main research interest in body image, weight loss behaviors, and eating disorders.Received Ph.D. from University of Connecticut. Main research interest in body image, eating disorders and weight loss behaviors.Dietitian degree from Melbourne University, Melbourne. Main research interest in eating practices and clinical outcome.M.D. from University of Melbourne, D.P.M. from U.K. FRC Psych. Main research interests in eating disorders.B.B.Sc.(Hons.) received from La Trobe University, Melbourne, B.A. received from University of Minnesota, Duluth. Main research interest in attitudes and attributions.B.A. Received from University of Minnesota, Duluth. Main research interest in adolescence and eating disorders.  相似文献   
883.
Regina Graycar and Jenny Morgan, The Hidden Gender of Law (The Federation Press) Leichhardt, 1990; Ngaire Naffine, Law and the Sexes (Allen and Unwin) Sydney, 1990.  相似文献   
884.
This paper investigates the effectiveness of New Jersey's mandatory belt use law (MUL) by testing specifically for: (1) a safety effect, and (2) a risk-compensation effect that could offset (in part) any safety impact. The main findings are that injury severity declined significantly in the 22 months following implementation of the MUL; but that accident frequency increased significantly. The increase in accidents may be explained only partially by increased driving mileage. These findings suggest that the real safety effect of the law may have been diluted by risk-compensating behavior.This paper is based on a study conducted for the New Jersey Office of Highway Traffic Safety by the Rutgers University Bureau of Economic Research. We are grateful to William Ascher and two referees for useful comments.  相似文献   
885.
886.
887.
888.
Lower division and upper division college women's and men's commitment in a dating relationship was examined in connection with their (a) gender role attitudes, (b) educational aspirations, (c) certainty about their future vocation, and (d) the importance they attach to work vs. marriage as a source of life satisfaction. Dating commitment was also examined for women in relation to their dedication to work for pay after marriage, and for men in terms of their ideas about their future wife working. The more certain upper division college women's vocational identity, the more committed they were to their dating partner, but the more they planned to work after marriage the less involved they were in a relationship. Additionally, upper division women who placed more importance on a job than marriage and who had a clearer vocational identity were less involved in a relationship. The clearer upper division men's vocational identity, the more committed they were in a relationship. Lower division men who placed more importance on work compared to marriage were less involved in a dating relationship. The results are discussed in light of Erikson's stages of identity development and more recent research that suggests women's identity development follows a different course from men's.Received Ph.D. in child development and family relationships at the University of Texas at Austin. Current research interests include the influence of parent-child interaction on children's mastery and achievement motivation, peer and intimate relationships, and identity development.Received Ph.D. from the State University of New York at Albany. Research focuses on the development of relationships from courtship into marriage and first-time parenthood.Received Ph.D. from the University of Minnesota. Program of research concerns the developmental origins, correlates, and consequences of identity formation in adolescence. Recent research addresses the dynamics of relationships in adoptive families and the consequences of openness in adoption on family members.Received B.A. in child development and family relationships program at the University of Texas at Austin.  相似文献   
889.
890.
Books in review     
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   
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