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   12667篇
  免费   1301篇
各国政治   460篇
工人农民   414篇
世界政治   945篇
外交国际关系   410篇
法律   9433篇
中国共产党   1篇
中国政治   86篇
政治理论   2139篇
综合类   80篇
  2020年   367篇
  2019年   372篇
  2018年   416篇
  2017年   498篇
  2016年   515篇
  2015年   459篇
  2014年   454篇
  2013年   1313篇
  2012年   298篇
  2011年   411篇
  2010年   566篇
  2009年   522篇
  2008年   313篇
  2007年   273篇
  2006年   393篇
  2005年   277篇
  2004年   268篇
  2003年   260篇
  2002年   228篇
  2001年   460篇
  2000年   376篇
  1999年   315篇
  1998年   164篇
  1997年   144篇
  1996年   114篇
  1995年   140篇
  1994年   149篇
  1993年   127篇
  1992年   225篇
  1991年   248篇
  1990年   230篇
  1989年   238篇
  1988年   213篇
  1987年   185篇
  1986年   209篇
  1985年   234篇
  1984年   227篇
  1983年   195篇
  1982年   155篇
  1981年   133篇
  1980年   135篇
  1979年   153篇
  1978年   95篇
  1977年   85篇
  1976年   69篇
  1975年   76篇
  1974年   80篇
  1973年   65篇
  1972年   60篇
  1971年   56篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
931.
This study generated adolescent women's perception of their identity in relation to family members spanning three generations and related these perceived relationships to their sex-role orientation. Subjects were 20 firstborn university women from intact families. The methodology used multiple sources of information, including open-ended interviewing procedures, rating scales, and standard research measures of sex-role identity. Significantly more constructs empirically differentiated family by generation than by sex. Congruence of young women with both the parent and grandparent generation, relative number of masculine stereotypes produced, and personality traits of males and females were significantly influenced by the presence of a brother in the sibling generation. There was no relationship between family constellation and sex-role orientation. Feminine women were significantly more congruent with other females in their family than androgynous women. There was a linear trend for androgynous women to be increasingly individuated across the generations.Received her Ph.D. from Yale University. Research interests include observation of children and families in natural settings, longitudinal research with at-risk infants, and rural consultation.Received her Ph.D. from the University of Minnesota. Research interests include development of social competence in family, school, and community environment.Received his Ph.D. from Yale University. Research interests include the socialization of values, professional development, and studies of the family in religious and ethnic community contexts.  相似文献   
932.
933.
934.
935.
936.
Similarity of ego identity status, assessed by Marcia's four-category classification system, was related to interpersonal attraction. Using male and female college students as subjects, this study found that (1) while all judges preferred targets who had or who are undergoing a crisis to those who have not had a crisis, (2) diffuse judges preferred targets with no commitments to those with commitments, and (3) judges with commitments preferred a foreclosure target more than judges without commitments. Differential evaluations of the targets' intelligence, knowledge of current events, adjustment, and morality were also found. Results are discussed both in terms of previous research positively relating personality similarity to attraction and Erikson's theory of the relationship between ego identity development and intimacy in interpersonal relations.  相似文献   
937.
Two studies were undertaken to examine parental influences on autonomy and identity development. In Study 1, 262 adolescents in seventh and eleventh grades were given Kurtines's autonomy measure, Simmons's identity measure, and Elder's questions regarding the adolescents' perceptions of their parents' autocratic, democratic, or permissive parenting styles. Study 2 was a replication with 168 subjects. Across both studies it was found that sex-role socialization is more influential for automony development than is either level of parental power or age. Both age and father's use of democracy were the most influential variables on identity development.Received Ph.D. from the University of Minnesota. Major interests are adolescent social cognition and social development.Major interests are adolescent social cognition and social development.Major interests are adolescent social cognition and social development.Received Ph.D. from the University of Cincinnati. Major interests are cognitive development and theories of personality.  相似文献   
938.
939.
Alzheimer's Disease presents extreme challenges not only to the individuals afflicted with it and their families, but also to both our legal and healthcare systems. The nature of the disease is such that current legal standards and requirements simply fail to function in an appropriate manner. So too, the health system currently is not in a position to handle the anticipated influx of Alzheimer's patients over the next several decades. This Article examines some of the challenges presented by this disease, and suggests several possible methods to improve our response to it.  相似文献   
940.
A statistical investigation of the relationship between firing range and the amount and distribution of gunshot residue (GSR), used automated image analysis (IA) to quantify GSR deposit resulting from firings into pig skin, from distances ranging between contact and 45 cm. Overall, for a Ruger .22 semi-automatic rifle using CCI solid point, high velocity ammunition, the total area of GSR deposit on the skin sections decreased in a non-linear fashion with firing range. More specifically there were significant differences in the amount of GSR deposited from shots fired at contact compared with shots fired from distances between 2.5 and 45 cm; and between shots fired from a distance of 20 cm or less, with shots fired at a distance of 30 cm or more. In addition, GSR particles were heavily concentrated in the wound tract only for contact and close range shots at 2.5 cm, while the particle distribution was more uniform between the wound tract and the skin surfaces for shots fired from distances greater than 2.5 cm. Consequently, for future scientific investigations of gunshot fatalities, once standards have been established for the weapon and ammunition type in question, image analysis quantification of GSR deposited in and around the gunshot wound may be capable of providing a reliable, statistical basis for estimating firing range.  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