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   1206篇
  免费   54篇
各国政治   98篇
工人农民   47篇
世界政治   123篇
外交国际关系   95篇
法律   525篇
中国政治   9篇
政治理论   355篇
综合类   8篇
  2023年   9篇
  2022年   5篇
  2021年   12篇
  2020年   27篇
  2019年   29篇
  2018年   55篇
  2017年   46篇
  2016年   46篇
  2015年   29篇
  2014年   39篇
  2013年   198篇
  2012年   31篇
  2011年   41篇
  2010年   36篇
  2009年   41篇
  2008年   39篇
  2007年   55篇
  2006年   51篇
  2005年   25篇
  2004年   30篇
  2003年   40篇
  2002年   39篇
  2001年   27篇
  2000年   29篇
  1999年   23篇
  1998年   19篇
  1997年   24篇
  1996年   13篇
  1995年   20篇
  1994年   6篇
  1993年   15篇
  1992年   24篇
  1991年   14篇
  1990年   10篇
  1989年   5篇
  1988年   6篇
  1987年   5篇
  1986年   6篇
  1985年   13篇
  1984年   4篇
  1983年   7篇
  1982年   4篇
  1981年   5篇
  1980年   7篇
  1979年   7篇
  1978年   4篇
  1977年   6篇
  1975年   4篇
  1973年   4篇
  1969年   4篇
排序方式: 共有1260条查询结果,搜索用时 15 毫秒
321.
On appeal, the Fourth Circuit affirmed the district court'sdecision that Haute Diggity Dog's (HDD) parody pet toys of famousbrands was not likely to cause confusion with those of LouisVuitton Malletier's (LVM) products. LVM's copyright, trade markdilution, and other claims were also rejected.  相似文献   
322.
323.
Past work on attitudes toward the use of referenda finds that the most politically informed citizens are more sceptical of its use than their less informed counterparts. An intriguing tension presents itself in that those citizens who may be best equipped for referendum voting, the highly informed and politically sophisticated, are the least likely to support the use of this tool of direct democracy. Using data from Canadian Election Studies, we consider three explanations for relative referenda scepticism among political sophisticates. Our analyses provide evidence to support a confidence in government explanation and a concern for minority rights explanation, but not an incompetent public explanation – a curious finding considering the centrality of citizen competence in the theoretical literature on referenda.  相似文献   
324.
325.
This article considers the role of land in (regional) development and the financing of such development. Specifically the article reflects on the application of legal provisions relating to the use of land and development, including considering how fiscal instruments can be used to promote economic development in a cross-border legal entity. The article concludes with recommendations as to how cross-border economic development can be improved. The article takes as its starting point the intention of the regions of Parkstad Limburg (NLs) and Aachen (GER) to establish a European Grouping for Territorial Cooperation (EGTC), with a view to promoting cross-border economic and spatial development.  相似文献   
326.
This paper examines and compares, according to the New Public Management approach, the U.S. watchdog, the Government Accountability Office, in its ability to oversee and call to account the executive branch of government, and its U.K. counterpart, the National Audit Office. Results of this examination indicate that the Government Accountability Office is more effective than its U.K. counterpart. Its greater effectiveness is attributable to the fact that it derives its powers and legitimacy from a written constitution; in contrast, in the United Kingdom there is no equivalent document defining the relationship between the state and the citizenry. As a consequence, the powers, duties, and self-perception of the National Audit Office are significantly weaker and more mutable than those of the Government Accountability Office.  相似文献   
327.
Beyond anxiety and fantasy: The coital experiences of college youth   总被引:1,自引:0,他引:1  
Counting virgins is described as social bookkeeping, a necessary but not sufficient task for social scientists. More important is the development of an understanding of the social processes which encourage or inhibit coital behavior. The analysis in this paper uses the socialbookkeeping approach to document the relatively stable rates of early and premarital coitus since the Kinsey report. The data are drawn from a 1972 study of 14–18-year-olds and a 1967 study of college students. When appropriate controls for educational attainment and age are introduced, it is shown that, in comparison to the change in rates at the beginning of the century, the rates since the 1940's have increased only a fourth as much. More importantly, coital behavior is shown to be still strongly linked to traditional patterns of restraint and facilitation. Traditional factors, such as relationships with parents and religious attendance, are shown to restrain early coital experience (defined as coitus before age 18), while factors linked to the courtship process such as dating frequency, facilitated this early behavior. During college both restraining and facilitating factors were operative, but levels of coital behavior in most cases stayed surprisingly low. Rates of frequent coitus rarely reached 40% among female college seniors and the proportion of college female seniors with three or more partners never reached 20%. The factors which encourage sexual activity during college are the courtship factorsdating behavior and being in love. In terms of initial coitus, women overwhelmingly report that they were in love with their partner. Given the relative stability of rates of early and premarital coitus and continuity of the role of courtship factors in facilitating this behavior, popular discussions of the contemporary sexual revolution are seen as being out of touch with reality and possibly inducing anxiety among young people when they do not experience the sexual revolution.Data analysis for this paper was carried out under NICHD grant HD 04156 and Illinois Law Enforcement Commission grant 2-09-25-0410-02, and also General Support Grant 5-SO1-RRO-5666-05.Received Ph.D. in Sociology from the University of Chicago. Research interests include post childhood socialization, social change and deviance, and urban social studies.Received Ph.D. in Sociology from the University of Chicago. Main research interests include adolescence, urban social studies, and adult socialization.Received Ph.D. in Sociology from the University of Chicago. Main research interest is social change and deviance.  相似文献   
328.
The present article focuses upon the much-neglected topic of white working class youth — the children of another other America. Based upon the available literature as well as upon a recent program of ethnographic research, the institutional settings — community, family, school — within which working class youth grow up are examined with particular emphasis on their climate and values. Attention is paid to the heterogeneity contained within this segment of the population pointing to four distinct types: collegians, greasers, hippies, and those encapsulated in family life. The article points to factors that promote a potential increase in residential social class homogeneity that, in turn, promotes class values, social and personal expectations, and modal relationships that increasingly diverge from the norms of an urban-industrial middle class society and that in considerable measure either contribute to a growing conservative alienation from the larger society or make adjustments to that society more problematic for its youth. The emergent picture of white working youth in part resembles that of youth in general, but in a more significant measure is much different from that found in either higher or lower social strata.This research was supported by USPHS-NIH Contract 70-511 and USPHS-NICHD Grant No. 04156.Received Ph.D. in Sociology from the University of Chicago. Research interests include post childhood socialization, social change and deviance, and urban social studies.Received Ph.D. in Sociology from the University of Chicago. Main research interest is social change and deviance.Candidate for Ph.D. in Sociology from Northwestern University. Main research interests are social stratification, youth, and social change in an industrial society.  相似文献   
329.
330.
This paper describes a procedure for the determination of psilocin and psilocybin in mushroom extracts using high-performance liquid chromatography with postcolumn chemiluminescence detection. A number of extraction methods for psilocin and psilocybin in hallucinogenic mushrooms were investigated, with a simple methanolic extraction being found to be most effective. Psilocin and psilocybin were extracted from a variety of hallucinogenic mushrooms using methanol. The analytes were separated on a C12 column using a (95:5% v/v) methanol:10 mM ammonium formate, pH 3.5 mobile phase with a run time of 5 min. Detection was realized through a dual reagent chemiluminescence detection system of acidic potassium permanganate and tris(2,2'-bipyridyl)ruthenium(II). The chemiluminescence detection system gave improved detectability when compared with UV absorption at 269 nm, with detection limits of 1.2 x 10(-8) and 3.5 x 10(-9) mol/L being obtained for psilocin and psilocybin, respectively. The procedure was applied to the determination of psilocin and psilocybin in three Australian species of hallucinogenic mushroom.  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