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   8075篇
  免费   516篇
各国政治   408篇
工人农民   248篇
世界政治   575篇
外交国际关系   346篇
法律   5396篇
中国政治   42篇
政治理论   1528篇
综合类   48篇
  2020年   177篇
  2019年   186篇
  2018年   217篇
  2017年   239篇
  2016年   243篇
  2015年   221篇
  2014年   213篇
  2013年   898篇
  2012年   174篇
  2011年   215篇
  2010年   223篇
  2009年   252篇
  2008年   195篇
  2007年   209篇
  2006年   210篇
  2005年   185篇
  2004年   206篇
  2003年   185篇
  2002年   159篇
  2001年   327篇
  2000年   272篇
  1999年   242篇
  1998年   114篇
  1997年   81篇
  1996年   77篇
  1995年   93篇
  1994年   92篇
  1993年   97篇
  1992年   168篇
  1991年   166篇
  1990年   154篇
  1989年   158篇
  1988年   125篇
  1987年   141篇
  1986年   130篇
  1985年   139篇
  1984年   106篇
  1983年   121篇
  1982年   87篇
  1981年   81篇
  1980年   62篇
  1979年   114篇
  1978年   78篇
  1977年   63篇
  1976年   53篇
  1975年   50篇
  1974年   62篇
  1973年   62篇
  1972年   48篇
  1968年   43篇
排序方式: 共有8591条查询结果,搜索用时 15 毫秒
151.
Recent literature reflects the increased use of RIA as a qualitative and quantitative tool. This study exemplifies the problems that may arise when this technique is used for quantitation. Caution must be exercised, and a physiological and toxicological understanding of each particular drug is essential to provide credible results. It is evident that the sensitivity and ease of the RIA method for methaqualone makes it invaluable as a screening test, but confirmation and quantitation of this drug must remain with those methods that can quantitate each metabolite.  相似文献   
152.
153.
154.
Abstract. This study is based on examination of a randomly selected sample of 2,150 letters representing all the mail received by Prime Minister Trudeau between February 1969 and June 1972. The object of the study was to ascertain the characteristics of the letter-writers and the nature of their concerns, arguments and strategies. Through interviews with the staff of the Correspondence Section of the Prime Minister's Office we were also able to discover how the mail is processed. This is described in the last section of our paper. As one might expect, the mail is unrepresentative of the regional, linguistic and class diversity of Canada. Metropolitan areas, rich provinces and English-speakers are over-represented, as are people who have access to typewriters. There is, however, a sizable group of letters from the very poor who write the Prime Minister to complain of their victimization by government bureaucracy or by life in general. These letters are personal and apolitical and approach the Prime Minister in a deferential manner. They appear to us to be carefully and sympathetically answered, and to be probably effective in rectifying small problems. The bulk of the mail is policy-oriented, but probably not effective in influencing policy. Public attention to policy, as expressed in the mail, is extremely transitory and focuses particularly on topics with strong emotional content or on those affecting economic welfare. The mail seems only weakly related to the government's own policy priorities. Sommaire. Cette étude est fondée sur un échantillon de 2,150 lettres tirées du courrier par le premier ministre Trudeau entire février 1969 et juin 1972. Nous avons voulu identifier les catégories de personnes qui s'adressaient au premier ministre, et déterminer le but de leur correspondence et la nature de leur argumentation etc. Nous avons interviewé le personnel de la section de la correspondance du cabinet du premier ministre pour connaître la procédure de réponse à ce courrier. Nous avons constaté que le courrier n'est pas représentatif de la diversité régionale, culturelle et sociale du pays. Les plus fortunés, les habitants des grandes villes, et les habitants des provinces sont surreprésentés. II y a, cependant, une proportion assez élevée de lettres venant d'économiquement faibles qui se plaignent au premier ministre de leur traitement par la bureaucratic ou de la vie en générate. Leurs problèmes sont formulés en termes personnels, et ces personnes s'adressent au premier ministre respectueusement. Les réponses à ces lettres nous paraissent sympathiques et souvent efficacies quant au redressement des plaintes. Le gros du courrier concerne l'orientation de la politique mais son influence est sans doute limitée. L'attention du public à l'égard de la politique gouvernementale est conditionnée par les évènements, en particulier les évènements à contenu émotif ou ceux qui touchent de près le bien-être des correspondants. Ce courrier ne se réfère que très indirectement aux priorités politiques du gouveniement.  相似文献   
155.
The barriers to terminating federal research and development vary with the type of program (manpower resource creation, basic or applied research, hardware development) and the functional sector in which it is lodged (defense or civilian). Each has a public/private constituency of sponsors and performers. Some constituencies are much more potent than others. Hence, to kill an R&D program, one must weaken the constituency behind it. Useful strategies for would-be terminators include decremental funding and the amalgamation of competing R&D programs within the same agency.  相似文献   
156.
Gender and gender-role orientation differences were explored on adolescents' coping with peer stressors. Eighth-grade and ninth-grade public junior high school students (N = 285) completed the COPE, reporting the strategies they recently used to deal with a stressful peer-related situation. Measures of gender-role orientation (Bem Sex-Role Inventory) and demographic information also were obtained. Factor analysis of the COPE revealed 4 distinct coping factors: active, avoidant, acceptance, and emotion-focused. The most frequently reported stressful event was arguments/fights with same-sex friends. Girls reported more arguments/fights with opposite-sex friends. Boys reported more physical fights and threats. Students' ratings of how much the situation mattered were used as a covariate in a MANCOVA to compare coping by gender and gender-role orientation, to control for perceived stressfulness of situations. Significant gender-role orientation differences were found for active, acceptance, and emotion-focused coping.  相似文献   
157.
Political deliberation involves both internal reflection and public discussion. The former might be far more important than implied by deliberative democrats' heavy emphasis on the discursive component. Analysis of the deliberations of a citizen's jury on an Australian environmental issue shows jurors' attitudes changing more in response to the 'information' phase of the jury proceedings, involving a large degree of 'deliberation within', than during the formal 'discussion' phase. Various ways can be imagined for evoking internal reflection of that sort, even in mass-political settings.  相似文献   
158.
Elections provide a mandate to pursue a set of policies. Party label provides a concise ideological cue for voters to choose among candidates, and research on industrial democracies verifies a link between the parties voters elect and subsequent policy outcomes. The combination of inchoate party systems and economic vulnerability elsewhere may weaken the link between voter choice and policy. When examining economic policies in Latin America, there is some controversy as to whether governments carried out "reform by surprise"—promising one thing during a campaign while implementing another in office. We test whether the ideological reputations of executives' and legislators' parties explain whether they adopt market-oriented policies. We find that the future behavior of presidential candidates is difficult for voters to predict. However, the ideological reputation of legislators is a reliable predictor of policy outcomes, and the relationship is clarified by the prospects of collective action by legislative delegations.  相似文献   
159.
160.
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