全文获取类型
收费全文 | 21899篇 |
免费 | 518篇 |
专业分类
各国政治 | 1031篇 |
工人农民 | 1568篇 |
世界政治 | 1264篇 |
外交国际关系 | 972篇 |
法律 | 12249篇 |
中国共产党 | 3篇 |
中国政治 | 107篇 |
政治理论 | 5086篇 |
综合类 | 137篇 |
出版年
2023年 | 82篇 |
2021年 | 86篇 |
2020年 | 196篇 |
2019年 | 260篇 |
2018年 | 1583篇 |
2017年 | 1532篇 |
2016年 | 1405篇 |
2015年 | 347篇 |
2014年 | 321篇 |
2013年 | 1867篇 |
2012年 | 583篇 |
2011年 | 1261篇 |
2010年 | 1284篇 |
2009年 | 892篇 |
2008年 | 1148篇 |
2007年 | 1129篇 |
2006年 | 467篇 |
2005年 | 477篇 |
2004年 | 591篇 |
2003年 | 511篇 |
2002年 | 393篇 |
2001年 | 369篇 |
2000年 | 369篇 |
1999年 | 300篇 |
1998年 | 209篇 |
1997年 | 221篇 |
1996年 | 198篇 |
1995年 | 186篇 |
1994年 | 188篇 |
1993年 | 187篇 |
1992年 | 249篇 |
1991年 | 259篇 |
1990年 | 238篇 |
1989年 | 232篇 |
1988年 | 223篇 |
1987年 | 217篇 |
1986年 | 223篇 |
1985年 | 202篇 |
1984年 | 202篇 |
1983年 | 202篇 |
1982年 | 126篇 |
1981年 | 121篇 |
1980年 | 95篇 |
1979年 | 130篇 |
1978年 | 103篇 |
1977年 | 100篇 |
1976年 | 73篇 |
1975年 | 74篇 |
1974年 | 91篇 |
1973年 | 82篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
Dorte Sindbjerg Martinsen Michael Blauberger Anita Heindlmaier Jessica Sampson Thierry 《Public administration》2019,97(4):814-828
This article analyses the implementation of European case law at the bureaucratic frontline of European member states. Theoretically, insights from street‐level implementation studies are combined with judicial impact research. Empirically, we compare how EU rules on free movement and cross‐border welfare are applied in practice in Denmark, Austria and France. We find that when applying EU rules in practice, street‐level bureaucrats are confronted with a world of legal complexity, consisting of ambiguous rules, underspecified concepts and a recent judicial turn by the Court of Justice of the European Union. In order to manage complexity, street‐level bureaucrats turn to their more immediate superiors for guidance. As a consequence, domestic signals shape the practical application of EU law. Despite bureaucratic discretion and many country differences, domestic signals create uniform, restrictive outcomes of EU law in all three cases. Thus we show that there is considerable room for politics in EU implementation processes. 相似文献
982.
983.
984.
Michael H. Creswell 《冲突和恐怖主义研究》2019,42(5):464-492
For America's foes in Afghanistan and the Middle East, triumph on the battlefield is less important than winning the battle of perceptions. In response, the United States has turned to Strategic Communication and Public Diplomacy (SC-PD) to engage key audiences in ways that advance U.S. interests and to win the political-ideological contest for domestic and international legitimacy. But are these strategies effective? While winning hearts and minds is politically important, SC-PD—even at its best—is much less effective than other well-crafted and mutually supportive policies and strategies. Moreover, there are structural obstacles that greatly limit the effectiveness of SC-PD. 相似文献
985.
In Europe, it is relatively uncommon to find studies that investigate the criminal profiles of violent offenders, especially infrequent are those that pay special attention to offenders’ mental health/substance use disorders and histories of violence during childhood. The current research explores whether inmates who are incarcerated for violent offenses (n = 536) in Spain are different in terms of the aforementioned factors as compared to inmates incarcerated for non-violent offenses (n = 536). Multivariate logistic regression analysis revealed that violent offenders, as compared to their non-violent counterparts, were more likely to be younger, younger at the time of their first arrest, single, use alcohol, receive treatment in prison for anxiety or schizophrenia, and report physical abuse during childhood. 相似文献
986.
Using the 2017 post-election German Longitudinal Election Study (GLES), this article examines the voters for the Alternative for Germany (AfD) in the 2017 German federal election. We show that AfD voters in 2017 were truly ‘flesh of the same flesh’ of the mainstream German political parties, with the AfD drawing its voters from across the political party spectrum as well as from previous non-voters in 2013. In contrast to previous scholarship, we find that in most respects AfD voters in 2017 did not differ demographically from voters for all other parties, be that in terms of gender, education, employment status, and union membership. Furthermore, we find that AfD voters were not driven by anxiety about their own economic situation: they are no ‘losers of globalisation.’ Instead, AfD voters in 2017 were driven solely by two factors: their attitudes towards immigrants/refugees and anti-establishment sentiment/satisfaction with democracy in Germany. 相似文献
987.
Michael J. Cleveland Mark E. Feinberg Mark T. Greenberg 《Journal of youth and adolescence》2010,39(2):114-126
This study used data from a sample of 6th to 12th grade students (N = 48,641, 51% female), nested in 192 schools, to determine if the influence of family-based protective factors varied across
different school contexts. Hierarchical logistic regression models were used to examine the effects of individual-level family
protective factors, relative to school-level aggregates of the same factors, on recent (past 30 days) use of cigarettes, alcohol,
and marijuana. Cross-level interactions indicated that the effect of the student’s level of family protection, relative to
other students in their school, differed depending on the aggregated school level of family protection. The results suggested
that the benefit of belonging to a well-functioning family was more influential for students attending schools characterized
by higher-than-average aggregated levels of protection compared to students attending schools of lower-than-average protection.
Thus, family-level factors offered less protection for students in relatively high-risk school contexts. These results were
consistent with a protective–reactive interaction and suggest that a thorough understanding of adolescent substance use must
consider the complex interplay among adolescents, their families, and their social environments. 相似文献
988.
Underage drinking is among the most serious of public health problems facing adolescents in the United States. Recent concerns
have centered on young women, reflected in media reports and arrest statistics on their increasing problematic alcohol use.
This study rigorously examined whether girls’ alcohol use rose by applying time series methods to both arrest data, Uniform Crime Reports, and self-report data from Monitoring the Future, a nationally representative long-term survey gathered independently of crime control agents. All self-reported drinking behaviors
across all age groups show declining or unchanged female rates and no significant change in the gender gap, while the official
source displays a steady narrowing gender gap and some increase of female arrest rates for liquor law violations. Results
indicate that social control measures applied to underage drinking have shifted to target young women’s drinking patterns,
but their drinking has not become more widespread/problematic. Girls’ increased alcohol use and abuse is a socially constructed
problem, rather than the result of normalization of drinking or more strain in girls’ lives. Future underage drinking policies
and practices that apply legal intervention strategies to less chronic adolescent drinking behaviors will increase the visibility
of girls’ drinking. 相似文献
989.
Latinas in the United States are at a disproportionate risk for STDs and sexual risk behaviors. Among Latinas, acculturation
has been found to be one of the most important predictors of these behaviors. Therefore, this study examined the longitudinal
association between Latina adolescents’ level of acculturation and multiple sexual risk outcomes, including self-report STD
diagnosis, four or more life-time sex partners, regret of sexual initiation after alcohol use, and lack of condom use during
young adulthood. Based on the National Longitudinal Study of Adolescent Health (Add Health), this study includes a nationally
representative sample of 1,073 Latina adolescents (ages 11–20 at Wave 1) transitioning into young adulthood (ages 18–27 at
Wave 3). Our findings indicate that more acculturated Latinas who spoke English at home were more likely to have STDs and
to exhibit sexual risk behaviors than Latinas who were foreign-born and did not use English at home. Interventions that aim
to promote sexual and reproductive health among young Latinas should take into consideration their different levels of acculturation.
This approach holds greater potential for reducing health disparities among Latinas. 相似文献
990.
Previous findings have shown both beneficial and adverse effects of parents’ attempts to influence adolescents’ eating habits.
The current study examined the differential effect of parents’ persuasion (e.g., encouragement, giving information) and pressure
tactics (e.g., guilt induction, ridicule) and the moderating influence of parental warmth on older adolescents’ emotional
and behavioral responses. An ethnically diverse sample of 336 older adolescents (M age = 18.6; SD = 1.1; 58.0% female) were surveyed. Adolescents who reported higher levels of pressure tactics by parents reported more negative
affect and behavioral resistance. Perceived parental warmth moderated the influence of persuasion tactics, but not pressure
tactics. For adolescents with low parental warmth, high levels of persuasion were associated with more negative emotional
and behavioral responses; persuasion had the opposite associations for adolescents with high parental warmth. These results
suggest that parental warmth plays an important role in how older adolescents respond to parents’ persuasion tactics. However,
when parents use more forceful pressure tactics to influence eating habits, adolescents react negatively regardless of the
overall quality of the parent–adolescent relationship. 相似文献