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   6883篇
  免费   214篇
各国政治   353篇
工人农民   236篇
世界政治   543篇
外交国际关系   237篇
法律   4098篇
中国政治   39篇
政治理论   1525篇
综合类   66篇
  2020年   79篇
  2019年   106篇
  2018年   154篇
  2017年   146篇
  2016年   145篇
  2015年   106篇
  2014年   120篇
  2013年   756篇
  2012年   147篇
  2011年   163篇
  2010年   156篇
  2009年   158篇
  2008年   165篇
  2007年   164篇
  2006年   177篇
  2005年   165篇
  2004年   153篇
  2003年   161篇
  2002年   157篇
  2001年   216篇
  2000年   178篇
  1999年   162篇
  1998年   101篇
  1997年   94篇
  1996年   72篇
  1995年   76篇
  1994年   74篇
  1993年   82篇
  1992年   118篇
  1991年   150篇
  1990年   128篇
  1989年   145篇
  1988年   132篇
  1987年   152篇
  1986年   139篇
  1985年   147篇
  1984年   134篇
  1983年   137篇
  1982年   101篇
  1981年   97篇
  1980年   89篇
  1979年   96篇
  1978年   77篇
  1977年   61篇
  1976年   67篇
  1975年   61篇
  1974年   71篇
  1973年   68篇
  1972年   55篇
  1969年   56篇
排序方式: 共有7097条查询结果,搜索用时 15 毫秒
161.
A state law has placed an obligation on the criminal investigation laboratories to screen and quantitate all preparations, both pharmaceutical and illicit, that fall under the provisions of "Excepted Substances." Without complete screens on these preparations, there is room for erroneous indictments as well as possible acquittals on technicalities.  相似文献   
162.
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   
163.
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   
164.
This article explains political radicalism by the number of voters who are biased towards a party. With little voters biased in favor of a party, this party has to rely more heavily on its programmatic distance to other parties. Because large parties – i.e.: parties with a high number of biased voters – gain votes when they move to the center of the political spectrum, parties with a lower number of voters that are biased in their favor are forced to the edges of the policy space. We draw on a computational model of political competition between four parties in a two‐dimensional policy space to investigate this relationship. We use panel corrected OLS estimates to analyze the data generated by the computer simulation. Our results substantiate the hypothesis of a negative relationship between the number of biased voters and the inclination of a party to adopt a more extreme policy stance.  相似文献   
165.
Prior studies have found inconsistent relationships between measures of self-concept and adolescent alcohol use. The current study explored whether the link between various measures of self-concept and alcohol use depends on gender. In addition, earlier work suggested a focus on negative self-esteem (i.e., self-derogation) might be more useful in predicting alcohol use. Students (N = 1459) attending 22 middle and junior high schools in New York City completed surveys that included measures of efficacy, self-derogation, and alcohol use. Participants completed surveys at baseline, 1-year follow-up, and 2-year follow-up. Data collectors administered the questionnaire following a standardized protocol during a regular 40-min-class period. On the basis of a longitudinal structural equation model, lower efficacy was related to greater self-derogation a year later across gender. Increased self-derogation predicted higher alcohol use for girls but not boys. These findings are congruent with a literature highlighting the importance of negative thoughts about the self in drinking behavior for women but not men. The results suggest that the alcohol prevention approaches should include material to enhance girls' self-esteem.  相似文献   
166.
The current study used a person-oriented approach to examine the participation of adolescents in both constructive, organized activities as well as relaxed leisure activities. The goal of this research was to identify different profiles of involvement in activities and the relations to psychosocial indicators for these differing groups. Activity profiles were created using cluster analytic techniques for 918 adolescents' responses in 11 activity domains. The groups were found to be both statistically and substantively unique and consistent with findings from previous research. Further, the groups showed meaningful and consistent differences across a range of psychosocial indicators, including academic performance, problem behavior, and mental health. Results indicated that adolescents' activity involvement was related to their psychological and behavioral functioning and that the profiles of participation across activity settings provide a more holistic view of teens' choices than do single variable models.  相似文献   
167.
Recent judicial reforms after democratic transition have been substantial and relatively successful in Chile, but much less so in Argentina and Brazil. This article traces this variation in outcomes to the legal strategies of the prior authoritarian regimes. The Brazilian military regime of 1964–1985 was gradualist in its approach to the law, and had a high degree of civilian-military consensus in the legal sphere. It was not highly repressive in its deployment of lethal violence, and this combination of factors contributed to a gradualist and consensual transition in which judicial reform was not placed high on the political agenda. The Argentine case of military rule between 1976 and 1983 was almost the opposite. The military sidestepped and even attacked the judiciary, engaging in almost entirely extrajudicial violence. This generated a “backlash” reform movement after the transition to democracy that was mostly retrospective and only partially successful. In Chile, in contrast, the military engineered a radical break with previous legality, engaged in violent repression, but made considerable efforts to reconstruct a judicial order. It was in the aftermath of this situation that reformers were able to push through a prospective and relatively successful judicial reform. This article's findings suggest that judicial reform may be more likely to succeed where the prior authoritarian regime was both repressive and legalistic, as in Chile, Poland, and South Africa, than where high degrees of repression were applied largely extrajudicially, as in Argentina, Cambodia, and Guatemala, or where the authoritarian regime was legalistic but not highly repressive, as in Brazil, Mexico, and the Philippines.  相似文献   
168.
Books reviewed in this article:
Lawrence S. Rothenberg, Environmental Choices: Policy Responses to Green Demands
David M. Driesen, The Economic Dynamics of Environmental Law  相似文献   
169.
Cho  Sungdai  Endersby  James W. 《Public Choice》2003,114(3-4):275-293
Competing spatial models of voter choiceare compared in the context ofparliamentary representatives selectedthrough single-member district, pluralityelections where party platforms areemphasized over individual candidates.Respondents of the 1987, 1992, and 1997British general election surveys ratepolitical parties on a series of issuescales. Ordered logistic regressions ofparty evaluations under proximity,directional, and mixed models reveal thatthe classic spatial model and thedirectional model perform equally well.Differences center on perceptions of thestatus quo, as voters appear to evaluatethe incumbent party (here, theConservatives) slightly differently thanminority parties (Labour and the LiberalDemocrats). The proximity model worksbetter for voter evaluations of governingparties while the directional model workswell for opposition parties.  相似文献   
170.
This paper investigates into the political determinants of trade policy regulation in developing countries. When choosing between the trade policy instruments tariffs and quota governments consider the effects of these policies on their political support from interest groups and voters. It is argued that quantitative restrictions become increasingly less attractive as a country democratizes. Instead, motives of revenue generation gain importance. Therefore, the likelihood of democratic governments choosing quota is smaller than for their autocratic counterparts. Empirical tests based on a sample of 75 developing countries for the years 1979–1998 support the hypothesis.  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