全文获取类型
收费全文 | 5556篇 |
免费 | 232篇 |
专业分类
各国政治 | 382篇 |
工人农民 | 204篇 |
世界政治 | 593篇 |
外交国际关系 | 423篇 |
法律 | 2426篇 |
中国政治 | 50篇 |
政治理论 | 1651篇 |
综合类 | 59篇 |
出版年
2023年 | 39篇 |
2022年 | 20篇 |
2021年 | 42篇 |
2020年 | 93篇 |
2019年 | 119篇 |
2018年 | 203篇 |
2017年 | 201篇 |
2016年 | 255篇 |
2015年 | 144篇 |
2014年 | 160篇 |
2013年 | 898篇 |
2012年 | 181篇 |
2011年 | 183篇 |
2010年 | 153篇 |
2009年 | 156篇 |
2008年 | 203篇 |
2007年 | 247篇 |
2006年 | 215篇 |
2005年 | 190篇 |
2004年 | 198篇 |
2003年 | 165篇 |
2002年 | 168篇 |
2001年 | 111篇 |
2000年 | 99篇 |
1999年 | 107篇 |
1998年 | 83篇 |
1997年 | 92篇 |
1996年 | 71篇 |
1995年 | 65篇 |
1994年 | 72篇 |
1993年 | 77篇 |
1992年 | 67篇 |
1991年 | 63篇 |
1990年 | 63篇 |
1989年 | 52篇 |
1988年 | 63篇 |
1987年 | 41篇 |
1986年 | 50篇 |
1985年 | 40篇 |
1984年 | 40篇 |
1983年 | 32篇 |
1982年 | 30篇 |
1981年 | 32篇 |
1980年 | 20篇 |
1979年 | 21篇 |
1978年 | 20篇 |
1977年 | 19篇 |
1976年 | 16篇 |
1975年 | 14篇 |
1974年 | 30篇 |
排序方式: 共有5788条查询结果,搜索用时 0 毫秒
171.
Michael P. A. Murphy 《Cambridge Review of International Affairs》2018,31(3-4):368-369
172.
Michael Rochlitz 《后苏联事务》2014,30(2-3):89-114
To what extent are Russian state agencies involved in predatory behavior, and what are the determinants of their activities? Analyzing a novel data-set comprising 312 cases of illegal corporate raiding (reyderstvo) between 1999 and 2010, this article identifies a shift both in the regional and sectoral distribution of raids over time, as well as an increasing participation of state agencies in criminal raiding attacks. Using panel regression analysis to look at the determinants of increasing state involvement, this article shows that election results for the ruling president and his party, as well as the degree to which elections are manipulated throughout Russia's regions, are significantly and positively correlated with the number of raids in a given region, while regions with governors that have stronger local ties are characterized by a smaller number of attacks. A potential interpretation of these findings is that the federal center may tolerate a certain degree of predatory activities by regional elites, as long as these elites are able to deliver a sufficiently high level of electoral support for the center, with the effect being weaker in regions where the governor is interested in the long-term development of the regional economy. 相似文献
173.
174.
Margaret O’Brien Caughy Luisa Franzini Michael Windle Patricia Dittus Paula Cuccaro Marc N. Elliott Mark A. Schuster 《Journal of youth and adolescence》2012,41(12):1613-1627
Despite evidence that neighborhoods confer both risk and resilience for youth development, the existing neighborhood research has a number of methodological limitations including lack of diversity in neighborhoods sampled and neighborhood characteristics assessed. The purpose of this study was to address these methodological limitations of existing research and to examine the relationship of neighborhood structural and social characteristics to family-level social processes and teacher-reported social competence during early adolescence. The study sample of 3,624 fifth graders (51?% girls) was ethnically diverse, including roughly even proportions of non-Hispanic White, non-Hispanic Black, and Hispanic youth. Neighborhood measures included economic disadvantage derived from the U.S. Census, physical and social disorder obtained by direct observation, and social capital from parental reports. Family-level social processes included parent reported family cohesion and youth reported maternal and paternal nurturance. We found that neighborhood factors significantly associated with youth social aggression and social competence but not social withdrawal, after controlling for individual demographic characteristics and parenting factors. There was limited evidence of moderation of family influences by neighborhood characteristics as well as the moderation of neighborhood effects by children’s gender. Neighborhood physical disorder was associated with increased social aggression among boys but with increased social withdrawal among girls. Implications of the study’s findings for research on neighborhoods and adolescent development and the development of preventive interventions are discussed. 相似文献
175.
Christine Jackson Susan T. Ennett Denise M. Dickinson J. Michael Bowling 《Journal of youth and adolescence》2013,42(11):1687-1695
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
176.
177.
Peter Michael Rosset Braulio Machín Sosa Adilén María Roque Jaime Dana Rocío Ávila Lozano 《The Journal of peasant studies》2013,40(1):161-191
Agroecology has played a key role in helping Cuba survive the crisis caused by the collapse of the socialist bloc in Europe and the tightening of the US trade embargo. Cuban peasants have been able to boost food production without scarce and expensive imported agricultural chemicals by first substituting more ecological inputs for the no longer available imports, and then by making a transition to more agroecologically integrated and diverse farming systems. This was possible not so much because appropriate alternatives were made available, but rather because of the Campesino-a-Campesino (CAC) social process methodology that the National Association of Small Farmers (ANAP) used to build a grassroots agroecology movement. This paper was produced in a ‘self-study’ process spearheaded by ANAP and La Via Campesina, the international agrarian movement of which ANAP is a member. In it we document and analyze the history of the Campesino-to-Campesino Agroecology Movement (MACAC), and the significantly increased contribution of peasants to national food production in Cuba that was brought about, at least in part, due to this movement. Our key findings are (i) the spread of agroecology was rapid and successful largely due to the social process methodology and social movement dynamics, (ii) farming practices evolved over time and contributed to significantly increased relative and absolute production by the peasant sector, and (iii) those practices resulted in additional benefits including resilience to climate change. 相似文献
178.
Michael Hein 《欧亚研究》2015,67(5):747-776
The fight against political, especially government, corruption has dominated Romanian political discourse for many years. However, the vast majority of the political elite have continuously opposed the prosecution and conviction of defendants of corruption crimes. After a long constitutional conflict that seriously inhibited the fight against government corruption between 2006 and 2009, law enforcement agencies finally began to experience some success. Nevertheless, the extent of government corruption has remained consistently high. This article analyses the struggles that have occurred between 2004 and 2013 in the fight against government corruption in Romania and particularly examines the interplay between formal and informal factors in this field. 相似文献
179.
180.