全文获取类型
收费全文 | 1175篇 |
免费 | 69篇 |
专业分类
各国政治 | 28篇 |
工人农民 | 179篇 |
世界政治 | 57篇 |
外交国际关系 | 36篇 |
法律 | 691篇 |
中国共产党 | 1篇 |
中国政治 | 21篇 |
政治理论 | 228篇 |
综合类 | 3篇 |
出版年
2023年 | 12篇 |
2022年 | 10篇 |
2021年 | 11篇 |
2020年 | 32篇 |
2019年 | 42篇 |
2018年 | 58篇 |
2017年 | 60篇 |
2016年 | 50篇 |
2015年 | 60篇 |
2014年 | 56篇 |
2013年 | 164篇 |
2012年 | 59篇 |
2011年 | 77篇 |
2010年 | 41篇 |
2009年 | 59篇 |
2008年 | 66篇 |
2007年 | 42篇 |
2006年 | 49篇 |
2005年 | 38篇 |
2004年 | 34篇 |
2003年 | 34篇 |
2002年 | 32篇 |
2001年 | 29篇 |
2000年 | 11篇 |
1999年 | 13篇 |
1998年 | 19篇 |
1997年 | 11篇 |
1996年 | 6篇 |
1995年 | 7篇 |
1994年 | 9篇 |
1993年 | 5篇 |
1992年 | 2篇 |
1991年 | 3篇 |
1990年 | 6篇 |
1989年 | 3篇 |
1988年 | 5篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 5篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 3篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1973年 | 1篇 |
1970年 | 1篇 |
1967年 | 1篇 |
排序方式: 共有1244条查询结果,搜索用时 93 毫秒
991.
Jennifer Wolak 《Political Behavior》2009,31(2):211-229
Congressional campaigns do not occur in isolation, but concurrently with many other races. What are the effects of overlapping campaigns for how people learn about congressional candidates? On one hand, intensely fought races on the same ballot may encourage people to extend interest to contemporaneous races. Alternatively, competing campaigns may distract voters and limit learning about down-ticket contests. Using American National Election Studies data from 1996 to 2002, I test the consequences of state level presidential, senatorial, and gubernatorial campaign intensity on citizen learning about congressional candidates. I find that while the local intensity of the presidential race has little effect on knowledge of House candidates, the intensity of the Senate race is positively associated with candidate recognition. These effects vary depending on the nature of the election, where House candidates benefit from intense Senate races on the ballot particularly in midterm election years. 相似文献
992.
Policy facts are among the most relevant forms of knowledge in a democracy. Although the mass media seem like an obvious source of policy-specific information, past research in this area has been plagued by design and methodological problems that have hindered causal inferences. Moreover, few studies include measures of media content, preventing researchers from being able to say what it is about media coverage that influences learning. We advance the literature by employing a simple but underutilized approach for estimating the causal effects of news coverage. Drawing upon a unique collection of cross-sectional survey data, we make within-survey/within-subjects comparisons under conditions of high and low media coverage. We show how the volume, breadth, and prominence of news media coverage increase policy-specific knowledge above and beyond common demographic factors. 相似文献
993.
Lowery David; Gray Virginia; Benz Jennifer; Deason Mary; Kirkland Justin; Sykes Jennifer 《Publius》2009,39(1):70-94
We examine how health PAC activity in the states is connectedto lobbying. Is the political money that health interest organizationsbring to the policy process a powerful, independent means ofinfluence or is it better understood narrowly as a tactic usedto support lobbying? We examine the relationship between campaigncontributions and lobby activity and the limited work that hasbeen conducted on them and raise a number of questions aboutthe process by which they are connected. We utilize 1998 dataon state lobbying and PAC activity, allowing us to answer causalresearch questions generated from existing studies at the nationallevel. We conclude that PAC activity is best viewed as an adjunctof lobbying rather than an independent form of political activity. 相似文献
994.
Jennifer W. Kaminski Richard W. Puddy Diane M. Hall Sandra Y. Cashman Alexander E. Crosby LaVonne A. G. Ortega 《Journal of youth and adolescence》2010,39(5):460-473
Previous research has linked greater social connectedness with a lowered risk of self-directed violence among adolescents.
However, few studies have analyzed the comparative strength of different domains of connectedness (e.g., family, peers and
school) to determine where limited resources might best be focused. Data to address that gap were taken from the Centers for
Disease Control and Prevention’s Student Health and Safety Survey, administered to 4,131 7th–12th graders (51.5% female; 43.8%
Hispanic; 22.6% African American or Black). Logistic regressions (controlling for age, gender, race/ethnicity, family structure,
academic performance, and depressive symptoms) suggest that family connectedness was a stronger predictor than connectedness
to peers, school, or adults at school for non-suicidal self-harm, suicidal ideation, suicide plans, and non-fatal suicidal
behavior. In some analyses, peer connectedness was unexpectedly a risk factor. Results have implications for prevention of
suicide in adolescence, especially in the context of the current trend towards school-based prevention programs. 相似文献
995.
Parent and Peer Pathways to Adolescent Delinquency: Variations by Ethnicity and Neighborhood Context
Effects of ethnicity and neighborhood quality often are confounded in research on adolescent delinquent behavior. This study examined the pathways to delinquency among 2,277 African American and 5,973 European American youth residing in high-risk and low-risk neighborhoods. Using data from a national study of youth, a meditational model was tested in which parenting practices (parental control and maternal support) were hypothesized to influence adolescents' participation in delinquent behavior through their affiliation with deviant peers. The relationships of family and neighborhood risk to parenting practices and deviant peer affiliation were also examined. Results of multi-group structural equation models provided support for the core meditational model in both ethnic groups, as well as evidence of a direct effect of maternal support on delinquency. When a similar model was tested within each ethnic group to compare youths residing in high-risk and low-risk neighborhoods, few neighborhood differences were found. The results indicate that, for both African American and European American youth, low parental control influences delinquency indirectly through its effect on deviant peer affiliation, whereas maternal support has both direct and indirect effects. However, the contextual factors influencing parenting practices and deviant peer affiliation appear to vary somewhat across ethnic groups. Overall the present study highlights the need to look at the joint influence of neighborhood context and ethnicity on adolescent problem behavior. 相似文献
996.
997.
Jennifer Y.J. Hsu 《Third world quarterly》2015,36(9):1754-1769
The emergence of China as a development actor across the global South has raised significant questions regarding the extent to which the country presents new development opportunities to its compatriots in the South. My aim is to reflect on and parse out the experiences and policies that have shaped China’s development to assess how it can inform the field of development studies. I argue that we need to critically engage in China’s development process, as China’s own development has led to the emergence of many more problems than solutions, ranging from increasing inequality to exclusionary development practices pertaining to ethnic minorities. 相似文献
998.
999.
Jennifer Evans 《Women's history review》2013,22(3):439-457
Philip Barrough wrote in 1590 that barrenness ‘is caused of the womans part or of the mans part’. By the eighteenth century, however, barrenness was perceived as a female disorder distinguished from male impotence. Few historians have addressed the uncertainty surrounding early modern definitions of infertility, choosing instead to adopt set terms that fit comfortably with modern ideas. This article will highlight the difficulties surrounding the gender distinction of the terms ‘barrenness’ and ‘impotence’ during this period. Moreover, the discussion will examine the role of gender in diagnosing these disorders to sufferers. The article will argue that ideas of gender were more central to diagnosis of poor sexual health than to effectual treatment. Although it appears that barrenness and impotence were treated with separate remedies, many treatments were described as effectual for both sexes. Additionally, the ingredients used in such recipes were often sexual stimulants explained without reference to gender. 相似文献
1000.
Meredith Dank Pamela Lachman Janine M. Zweig Jennifer Yahner 《Journal of youth and adolescence》2014,43(5):846-857
Media attention and the literature on lesbian, gay, and bisexual youth overwhelmingly focus on violence involving hate crimes and bullying, while ignoring the fact that vulnerable youth also may be at increased risk of violence in their dating relationships. In this study, we examine physical, psychological, sexual, and cyber dating violence experiences among lesbian, gay, and bisexual youth—as compared to those of heterosexual youth, and we explore variations in the likelihood of help-seeking behavior and the presence of particular risk factors among both types of dating violence victims. A total of 5,647 youth (51 % female, 74 % White) from 10 schools participated in a cross-sectional anonymous survey, of which 3,745 reported currently being in a dating relationship or having been in one during the prior year. Results indicated that lesbian, gay, and bisexual youth are at higher risk for all types of dating violence victimization (and nearly all types of dating violence perpetration), compared to heterosexual youth. Further, when looking at gender identity, transgender and female youth are at highest risk of most types of victimization, and are the most likely perpetrators of all forms of dating violence but sexual coercion, which begs further exploration. The findings support the development of dating violence prevention programs that specifically target the needs and vulnerabilities of lesbian, gay, and bisexual youth, in addition to those of female and transgender youth. 相似文献