全文获取类型
收费全文 | 1814篇 |
免费 | 59篇 |
专业分类
各国政治 | 151篇 |
工人农民 | 59篇 |
世界政治 | 93篇 |
外交国际关系 | 63篇 |
法律 | 1243篇 |
中国政治 | 9篇 |
政治理论 | 244篇 |
综合类 | 11篇 |
出版年
2022年 | 11篇 |
2020年 | 35篇 |
2019年 | 37篇 |
2018年 | 49篇 |
2017年 | 67篇 |
2016年 | 61篇 |
2015年 | 29篇 |
2014年 | 38篇 |
2013年 | 213篇 |
2012年 | 44篇 |
2011年 | 62篇 |
2010年 | 39篇 |
2009年 | 40篇 |
2008年 | 50篇 |
2007年 | 51篇 |
2006年 | 47篇 |
2005年 | 52篇 |
2004年 | 49篇 |
2003年 | 56篇 |
2002年 | 44篇 |
2001年 | 63篇 |
2000年 | 50篇 |
1999年 | 48篇 |
1998年 | 16篇 |
1997年 | 14篇 |
1996年 | 19篇 |
1995年 | 12篇 |
1994年 | 13篇 |
1993年 | 12篇 |
1992年 | 29篇 |
1991年 | 32篇 |
1990年 | 36篇 |
1989年 | 38篇 |
1988年 | 35篇 |
1987年 | 25篇 |
1986年 | 35篇 |
1985年 | 26篇 |
1984年 | 20篇 |
1983年 | 16篇 |
1982年 | 12篇 |
1981年 | 18篇 |
1980年 | 11篇 |
1979年 | 19篇 |
1978年 | 21篇 |
1977年 | 16篇 |
1971年 | 18篇 |
1970年 | 17篇 |
1969年 | 11篇 |
1968年 | 17篇 |
1967年 | 12篇 |
排序方式: 共有1873条查询结果,搜索用时 15 毫秒
51.
Roosa MW O'Donnell M Cham H Gonzales NA Zeiders KH Tein JY Knight GP Umaña-Taylor A 《Journal of youth and adolescence》2012,41(3):307-319
Mexican American youth are at greater risk of school failure than their peers. To identify factors that may contribute to
academic success in this population, this study examined the prospective relationships from 5th grade to 7th grade of family
(i.e., human capital [a parent with at least a high school education], residential stability, academically and occupationally
positive family role models, and family structure) and individual characteristics (i.e., externalizing symptoms, bilingualism,
gender, and immigrant status) to the academic performance of 749 Mexican American early adolescents (average age = 10.4 years
and 48.7% were girls in 5th grade) from economically and culturally diverse families as these youth made the transition to
junior high school. Results indicated that while controlling for prior academic performance, human capital and positive family
role models assessed when adolescents were in 5th grade positively related to academic performance in 7th grade. Further,
being a girl also was related to greater 7th grade academic success, whereas externalizing symptoms were negatively related
to 7th grade academic performance. No other variables in the model were significantly and prospectively related to 7th grade
academic performance. Implications for future research and interventions are discussed. 相似文献
52.
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
53.
54.
This paper investigates the influence of nationally imposed health targets on current management control practices in New Zealand and Denmark. It reveals how variants of New Public Management (NPM), arising from specific historical socio-political contexts, rise to the challenge of national differences. The study finds that both nations are challenged to ensure data registration procedures produce valid and comparable performance measures. Denmark’s reliance on a single efficiency measure of health sector performance reflects a historic socio-political context that reduces the feasibility of additional measures whereas New Zealand’s context enables the government to impose a more extensive range of health targets. 相似文献
55.
There has been resurgence in evaluation of policy, reflected mostly by an increase in ex ante studies. Although there is a shift towards ex post evaluation, this has been gradual, resulting in a paucity of ex post evaluation literature. To address this gap, we apply a revisionist approach to evaluate a major public sector reform in the Bhutanese civil service. We conclude that it provides a more holistic approach for ex post evaluation policy, and also a more nuanced evaluation which moves us beyond the narrow binary view of success or failure in reform. 相似文献
56.
If solving the global sanitation crisis lies within Indian borders, then it is important to understand the influence of caste relations on sanitation building and usage. Our ethnography investigated three villages in rural Tamil Nadu where seven separate sanitation interventions had failed. The analysis indicates caste relations played a key role in the failed interventions by creating and reinforcing the means by which caste groups distinguished themselves from each other at the village scale. Issues of cleaning, access to subsidies, latrine design, and purity served to facilitate and limit the processes that enable the everyday, unequal relationships of caste. 相似文献
57.
Research has long linked academic engagement to positive social, psychological, and physical developmental outcomes; however, qualitative studies in high-performing schools find that some students who work hard in school may be compromising their mental and physical health in the pursuit of top grades. Such research calls for closer and more contextualized examinations of the concept of engagement. This study examines academic engagement in a sample of 6,294 students (54 % female; 44 % White, 34 % Asian, and 22 % other racial or ethnic background) attending 15 high-achieving schools. Findings show that two-thirds of students at these schools are not regularly “fully engaged” in their academic schoolwork; that is, they do not regularly report high levels of affective, behavioral and cognitive engagement. Although most students report working hard, few enjoy their schoolwork and find it valuable. This lack of full engagement, particularly the absence of affective and cognitive engagement, is associated with more frequent school stress, higher rates of cheating, and greater internalizing, externalizing, and physical symptoms of stress. The study also finds that full engagement is strongly related to positive teacher-student relationships. Implications for practice and future research are discussed. 相似文献
58.
Aerika S. Brittian Megan O’Donnell George P. Knight Gustavo Carlo Adriana J. Umaña-Taylor Mark W. Roosa 《Journal of youth and adolescence》2013,42(3):328-341
Experiences with perceived discrimination (e.g., perceptions of being treated unfairly due to race or ethnicity) are expected to impact negatively youths’ prosocial development. However, resilience often occurs in light of such experiences through cultural factors. The current longitudinal study examined the influence of perceived discrimination on the emergence of Mexican American adolescents’ later prosocial tendencies, and examined the mediating role of Mexican American values (e.g., familism, respect, and religiosity). Participants included 749 adolescents (49 % female) interviewed at 5th, 7th, and 10th grade. Results of the current study suggested that, although perceived discrimination was associated negatively with some types of prosocial tendencies (e.g., compliant, emotional, and dire) and related positively to public prosocial helping, the associations were mediated by youths’ Mexican American values. Directions for future research are presented and practical implications for promoting adolescents’ resilience are discussed. 相似文献
59.
60.
J.I. Gow A. Paul Pross V. Seymour Wilson C.E.S. Franks O.P. Dwivedi 《Canadian public administration. Administration publique du Canada》2011,54(2):165-187
Abstract: J.E. (Ted) Hodgetts was influenced by both the political economy approach that he learned at the University of Toronto and by the comprehensive historical method developed by Leonard White, under whom he studied at Chicago. His first great project, Pioneer Public Service, convinced him that responsible government was impossible without responsible public administration. The authors examine how his response to management theories and practices evolved following his participation in the Glassco, Lambert and Gomery commissions. Hodgetts consistently refused the complete separation of politics and administration, and he promoted the use of management techniques to strengthen parliamentary supervision of the public service. The two key components of his legacy are thus a commitment to the democratic values of representative government and the comprehensive study of the internal dynamics of public administration in interaction with the relevant environmental factors. 相似文献