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   4819篇
  免费   160篇
各国政治   156篇
工人农民   222篇
世界政治   325篇
外交国际关系   187篇
法律   3161篇
中国政治   26篇
政治理论   879篇
综合类   23篇
  2023年   37篇
  2021年   28篇
  2020年   63篇
  2019年   83篇
  2018年   113篇
  2017年   101篇
  2016年   121篇
  2015年   72篇
  2014年   96篇
  2013年   447篇
  2012年   116篇
  2011年   136篇
  2010年   95篇
  2009年   123篇
  2008年   118篇
  2007年   120篇
  2006年   128篇
  2005年   84篇
  2004年   102篇
  2003年   109篇
  2002年   85篇
  2001年   210篇
  2000年   208篇
  1999年   149篇
  1998年   62篇
  1997年   65篇
  1996年   56篇
  1995年   53篇
  1994年   59篇
  1993年   52篇
  1992年   118篇
  1991年   107篇
  1990年   132篇
  1989年   122篇
  1988年   138篇
  1987年   129篇
  1986年   100篇
  1985年   106篇
  1984年   81篇
  1983年   73篇
  1982年   53篇
  1981年   47篇
  1980年   42篇
  1979年   50篇
  1978年   36篇
  1976年   30篇
  1975年   28篇
  1974年   39篇
  1973年   28篇
  1970年   27篇
排序方式: 共有4979条查询结果,搜索用时 0 毫秒
181.
Jones, Hesterly and Borgatti (1997) proposed a general theory of network governance (GTNG), identifying conditions under which network governance is likely to develop and detailing four social mechanisms that protect and promote resource exchange and collaborative action within a network. This article applies their theory to the emerging problem of swatting—internet-based spoofing attacks that compel a SWAT response to a selected innocent victim. As this problem has not been addressed through traditional policy or law enforcement mechanisms, networks have emerged to respond to these attacks. The author details the parallels between these emergent networks and Jones et al.’s theoretical framework.  相似文献   
182.
183.
Abstract

Taking its inspiration from post-colonial feminist scholarship, particularly the writings of Greenland scholar Karla Jessen Williamson, this paper sets out to trace the ways in which conceptions of gender in Greenland changed as a consequence of the eighteenth-century colonial encounter with Christian missionaries and a Danish trade monopoly. According to Jessen Williamson, pre-colonial Greenlandic conceptions of gender were characterized by a certain social indifference to gender, and the absence of a given hierarchy of male dominance/female subordination—a situation of genderlessness. During the process of colonization, European morals of sexuality and hierarchies of gender were introduced, along with hierarchies of race. The paper focuses on two historical periods, the 1700s and the 1900s. We see the first period as characterized by intricate intersections of gender, race, and class, as well as transformations of existing norms of gender and sexuality. As for the second period, the paper investigates how the notion of genderlessness might provide a background for understanding the different implications of the process of modernization for different groups of women in Greenland. Our aim is to contribute to a continued discussion of different understandings of gender in Greenland and elsewhere.  相似文献   
184.
185.
Although the relation between family relationships and the timing of sexual debut has been the focus of many studies, research on mediating factors is scarce. This study examines whether low levels of family cohesion result in an earlier onset of romantic and sexual experiences, and whether the link between family cohesion and an early sexual debut is mediated by early romantic initiation. A longitudinal sample of 314 adolescent girls and 222 boys, aged 12–17 at Wave 1, completed questionnaires at three measurement points with three year intervals. The results showed that sexual debut followed romantic initiation for 77% of the participants. For early adolescent females (aged 12–14), high levels of family cohesion resulted in a later sexual debut and this association was fully mediated by a delay of romantic initiation. Among boys and older girls, timing of romantic initiation did not mediate the link between family cohesion and timing of sexual initiation. Early adolescent girls who have negative relationships with their parents turn to romantic relationships for intimacy and support, which subsequently provide the opportunity for an early sexual debut. Low levels of family cohesion thus primarily precipitate romantic initiation and sexual initiation appears to be secondary to this process among girls in this age group.  相似文献   
186.
Sipping alcohol during childhood may be a marker of differentiation as regards children’s future risk of underage drinking; yet very little is known about alcohol use when it occurs among elementary school-aged children. The purpose of the present study is to examine alcohol sipping behavior in a sample of third-grade school children to learn whether sipping is associated with attributes that could increase children’s likelihood of further underage drinking. We collected telephone interview data from 1,050 mothers and their third grade children (mean age 9.2 years; 48.2 % male) residing in the Southeastern United States. The majority of mothers were White non-Hispanic (69.02 %) or Black non-Hispanic (21.3 %); most (85 %) lived in households shared with fathers or other adult caretakers. We hypothesized that children who sip alcohol would score lower than abstinent peers on indicators of competence and score higher on indicators of exposure to alcohol-specific socialization by parents and peers. A multivariate model controlling for frequency of parent alcohol use and demographic covariates showed that children who had sipped alcohol were significantly less likely than abstinent peers to affirm indicators of competence and significantly more likely to affirm indicators of exposure to alcohol specific socialization by parents and by same age peers. These preliminary findings suggest that developmental attributes associated with risk of underage drinking begin to differentiate at least as young as middle childhood. Research is needed to test prospectively for continuity between alcohol risk attributes present in middle childhood and future alcohol use.  相似文献   
187.
The peer context is a central focus in research on adolescent risk behaviors but few studies have investigated the role of the peer context in the perpetration of adolescent dating violence. This longitudinal study examined between-subjects and within-person contemporaneous and lagged effects of peer attributes, measured with social network analyses, on trajectories of dating violence perpetration and determined if effects varied by grade and/or sex of the adolescent. Data are from adolescents who participated in a five-wave panel study beginning when they were in 7 through 9th grade and ending when they were in 10 through 12th grade (n = 3,412); half were male, 40.5 % were white, 49.9 % were black and 10.4 % were of another race/ethnicity. Significant between-subjects effects indicate that adolescents who typically have friends who use dating violence, and girls who are typically high in social status, are at increased risk for using dating violence throughout adolescence. Adolescents who typically have high quality friendships and girls who typically have friends with pro-social beliefs are at decreased risk for using dating violence throughout adolescence. Significant within-person contemporaneous effects indicate that both boys and girls reported lower levels of dating violence than usual at times when they had more friends with pro-social beliefs, and reported higher levels of dating violence than usual at times when they had higher social status. None of the lagged effects were significant and none of the effects varied across grade. These findings suggest that the peer context plays an important role in the development of the perpetration of adolescent dating violence.  相似文献   
188.
This analysis tackles the question of whether the democratic deficit in the European Union is associated with repeated referendums—giving voters a second chance to vote “yes” for EU treaties. Looking at repeated referendums in Ireland on the Nice and Lisbon treaties, I argue that, broadly speaking, these referendums failed to give Irish voters the meaningful ability to contest the direction of EU policy or to choose among alternative policy options, an example of how the democratic deficit can endure even when the EU incorporates electoral mechanisms. I first discuss how this theoretical insight is evidenced by five aspects of the Irish referendums. Then, I examine three of these aspects more closely in case studies of the Nice and Lisbon referendums, focusing on how leaders (1) conceptualized the failure of the initial referendums as deriving from voter incomprehension, (2) planned repeated referendums in an additional effort to ratify the treaties, and (3) mobilized “yes” voters through extreme predictions about the consequences of second “no” outcomes. I conclude by discussing socio-economic trends seen from 2003 to 2014 and their implications for issues related to the EU’s democratic deficit.  相似文献   
189.
A newspaper's ‘Letters to the Editor’ column represents its readership in a unique way and can provide a useful ‘thermometer’ with which to measure the extent of critical debate and discussion a particular issue generated in a locality. In this article, the letters of women to the editor of the Aberdeen Daily Journal, 1900 to 1914, are analysed to discover the type of political issues with which these women concerned themselves. It is argued that the women must have felt particularly strongly about such issues since they were prepared to take their arguments outside their social circle and to identify themselves as politically active in the pages of their daily newspaper. Political issues dealt with include local government, the suffrage question and government legislation. While much of the evidence used comes from the letters of active suffragists who were usually members of national suffrage associations, it is argued that the period showed an expansion in the type of woman interested in politics, and the corresponding urge to write to the newspapers. This is evidenced in the number of women who firmly stated that they were not suffragists, but became politicised enough to write to the newspaper complaining about the Insurance Act in 1912.  相似文献   
190.
As a sensitive area in international trade, animal welfare measures have encountered resistance in negotiations at the World Trade Organization (WTO). Consequently, alternative avenues have been pursued to reach international trade policy convergence. To further understand the contemporary trade politics of animal welfare, an empirical investigation was conducted on the interplay between European and Brazilian actors in the context of livestock production. By drawing upon diplomatic studies and the global governance literature, this study identifies and analyses initiatives that parallel the WTO approach and through which the development and implementation of mutually acceptable farm animal welfare measures have been pursued. Research findings indicate that a constellation of international non-diplomatic actors are currently engaged in influencing the future development of farm animal welfare measures. Among the initiatives that enable the alignment of European and Brazilian animal welfare policies and practices, there are soft instruments such as knowledge sharing and private standards. The rise of new actors and the use of soft instruments have been, to a certain extent, able to mitigate the tardiness of a WTO consensus regarding the use of animal welfare measures. However, there are concerns that the use of private standards has become a shortcut to circumvent the rigours of the multilateral trading system. This concern deserves a closer look because instead of paving the way, private standards may hamper trade relations which in turn hamper progress in animal welfare matters.  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