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   660篇
  免费   17篇
各国政治   35篇
工人农民   14篇
世界政治   46篇
外交国际关系   25篇
法律   476篇
中国政治   6篇
政治理论   70篇
综合类   5篇
  2020年   6篇
  2019年   5篇
  2018年   13篇
  2017年   14篇
  2016年   10篇
  2015年   5篇
  2014年   10篇
  2013年   47篇
  2012年   14篇
  2011年   12篇
  2010年   10篇
  2009年   13篇
  2008年   12篇
  2007年   23篇
  2006年   22篇
  2005年   25篇
  2004年   14篇
  2003年   22篇
  2002年   18篇
  2001年   36篇
  2000年   24篇
  1999年   23篇
  1998年   7篇
  1997年   15篇
  1995年   8篇
  1994年   5篇
  1993年   4篇
  1992年   9篇
  1991年   14篇
  1990年   14篇
  1989年   16篇
  1988年   19篇
  1987年   10篇
  1986年   17篇
  1985年   17篇
  1984年   14篇
  1983年   10篇
  1981年   16篇
  1980年   5篇
  1979年   10篇
  1978年   8篇
  1977年   9篇
  1976年   4篇
  1975年   10篇
  1974年   14篇
  1973年   12篇
  1972年   3篇
  1971年   5篇
  1970年   4篇
  1969年   3篇
排序方式: 共有677条查询结果,搜索用时 31 毫秒
291.
292.
293.
294.
295.
The study examines separation-individuation during adolescence and young adulthood for gay, lesbian, and bisexual youths, and evaluates the consequences of parent-youth relationships for well-being and sexual orientation identity development. Seventy-two youths completed interview and questionnaire measures of relatedness, autonomy, and conflictual independence in relation to mothers and fathers, along with self-reports of parent attitudes, identity consolidation, and well-being. When youths perceived that their parents had relatively accepting attitudes regarding sexual orientation they demonstrated closer relatedness and greater conflictual independence with parents, but not greater autonomy. Both accepting parental attitudes and greater separation-individuation predicted more positive well-being for the youths, though only parental attitudes predicted greater consolidation of sexual orientation identity. Although mothers were generally closer and more supportive than fathers, relationships with both parents were important, independent predictors of personal adjustment. The discussion proposes mutual influences among separation-individuation, perceived acceptance by parents, identity consolidation and well-being.  相似文献   
296.
Stein J 《Time》1999,154(18):72-79
  相似文献   
297.
Allele and genotype frequencies for the five PCR-based loci were analyzed in 157 unrelated Turkish individuals. The five PCR-based loci included LDLR, GYPA, HBGG, D7S8, and Gc. The results of the chi-square and exact tests showed that the genotype distribution at the LDLR, GYPA, D7S8, and Gc loci did not significantly differ from the Hardy-Weinberg Expectation (HWE). However, the genotype distribution at the HBGG locus did not conform to HWE. Moreover, the genotype frequencies calculated in this study were compared with the published genotype frequencies of US African American and US Caucasian populations. The Turkish population was significantly different at the HBGG locus from the US Caucasian population. However, there were highly significant differences at the LDLR, HBGG, and Gc loci between the Turkish and African American populations.  相似文献   
298.
Allele and genotype frequencies for the 13 core STR loci (D3S1358, VWA, FGA, D8S1179, D21S11, D18S51, D5S818, D13S317, D7S820, THO1, TPOX, CSF1PO, and D16S539) were determined in a Swiss Caucasian population sample (n = 206) using two commercially available multiplex PCR kits (AmpFISTR Profiler Plus and AmpFISTR Cofiler) and subsequent electrophoresis on an ABI PRISM CE 310 Genetic Analyzer instrument. All loci meet Hardy-Weinberg expectations. In addition, there is little evidence for association of alleles among the 13 loci. The allelic frequency data can be used in forensic analyses and paternity tests to estimate the frequency of a multiple STR locus DNA profile in the Swiss population.  相似文献   
299.
Abstract The common agricultural policy of the EC with its market regulations is decided at EC level by a multilevel system of government, in which the Commission and the parliamentary parties of the European Parliament play the supranational role and the national ministries of agriculture act as parts of the intergovernmental system of the Council of Ministers. National interest groups have thereby three major access routes to the EC system, first through their national governments, or second indirectly, transmitted by their European peak organizations, or third directly to the supranational EC actors. The network approach is applied to study empirically the densities of access through these various routes. The links between actors in the agricultural policy domain are conceptualized as links for the exchange of resources, the most important resource of a policy domain being the final control of policy decisions. The political actors of the governance system originally hold full control of this valuable resource which they exchange for influence resources possessed by the interest groups, as public support or expert knowledge. Empirically, answers to the network questions depend on the type of resource and the viewpoint of the interviewed actors. An index is developed which indicates the resource flows between actors and the distribution of equilibrium control of policy decisions. It is shown that the national ministers of agriculture depend very much on the support and expertise of their national farmers' lobby, whereas the Commission relies more on contacts within the political sector itself. Multilevel systems need a lot of political coordination, so that the political actors within such systems, especially at the supranational level, seem to deal first of all with each other and not so much with the demand side of politics, compared to the national ministers of agriculture.  相似文献   
300.
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