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   333篇
  免费   9篇
各国政治   15篇
工人农民   54篇
世界政治   25篇
外交国际关系   15篇
法律   174篇
中国政治   1篇
政治理论   53篇
综合类   5篇
  2023年   2篇
  2022年   2篇
  2020年   5篇
  2019年   9篇
  2018年   9篇
  2017年   13篇
  2016年   13篇
  2015年   4篇
  2014年   9篇
  2013年   48篇
  2012年   12篇
  2011年   13篇
  2010年   8篇
  2009年   8篇
  2008年   8篇
  2007年   6篇
  2006年   15篇
  2005年   5篇
  2004年   7篇
  2003年   5篇
  2002年   15篇
  2001年   7篇
  2000年   6篇
  1999年   5篇
  1998年   3篇
  1997年   6篇
  1996年   7篇
  1995年   5篇
  1993年   2篇
  1992年   6篇
  1991年   3篇
  1990年   4篇
  1989年   6篇
  1988年   6篇
  1987年   2篇
  1985年   5篇
  1984年   3篇
  1982年   5篇
  1980年   17篇
  1979年   2篇
  1977年   6篇
  1976年   3篇
  1973年   3篇
  1971年   1篇
  1969年   1篇
  1967年   1篇
  1966年   2篇
  1956年   1篇
  1935年   1篇
  1932年   1篇
排序方式: 共有342条查询结果,搜索用时 15 毫秒
281.
282.
283.
Climate change is posing an increasingly severe challenge to agricultural livelihoods due to increased frequency and intensity of extreme weather events. Livelihood diversification can play an important role in decreasing food insecurity and vulnerability under these challenges. This paper contributes to the literature on livelihood diversification and vulnerability under climate change to assess the role of diversification as part of a Climate-Smart Agriculture strategy by analysing the determinants of diversification, income and poverty in Zambia using panel data. We specifically focus on the roles of climate shocks and institutions in shaping these linkages to highlight policy insights to improve resilience.  相似文献   
284.
Using a variant of the ecological-transactional model and developmental theories of delinquency on a nationally representative sample of adolescents, the current study explored the ecological predictors of violent victimization, perpetration, and both for three different developmental stages during adolescence. We examined the relative influence of individual and family characteristics, peers, and neighborhood characteristics on the odds of experiencing violent victimization and perpetration over time with two waves of the National Longitudinal Study of Adolescent Health for those adolescents who reported no exposure to violence at Wave 1 (N = 8,267; 50% female; 59% Caucasian; 17% African-American; 14% Hispanic). We found that more proximal factors differentiated between different experiences with violence at Wave 2. Also, negative peers significantly differentiated between violent victimization and perpetration, and this influence was strongest in early adolescence. In exploratory analyses, we found that middle adolescents were particularly vulnerable to their disadvantaged neighborhoods for a high-risk group. This analysis is one of the few that considers multiple ecological contexts simultaneously and provides support for developmental differences within adolescence on the influence that peers and neighborhoods have in predicting violent victimization and perpetration.  相似文献   
285.
Navigating the family court setting to protect teen mental health, meet teens' mental health needs, and promote resilience and coping skills is challenging. We have tools that can help us meet that challenge. That toolkit includes: expanding who is involved in the work to develop a parenting plan or treatment plan; not reducing the case to a one-dimensional fact pattern; restructuring family court proceedings for ongoing problem-solving, providing protections for the teen's privacy; using consensual dispute resolution and adjudication on parallel tracks; and educating the decision makers through expert declarations and Brandeis briefs (even at the trial court level).  相似文献   
286.
287.
A forensic genotyping panel of 11 tetranucleotide STR loci from the domestic cat was characterized and evaluated for genetic individualization of cat tissues. We first examined 49 candidate STR loci and their frequency assessment in domestic cat populations. The STR loci (3-4 base pair repeat motifs), mapped in the cat genome relative to 579 coding loci and 255 STR loci, are well distributed across the 18 feline autosomes. All loci exhibit Mendelian inheritance in a multi-generation pedigree. Eleven loci that were unlinked and were highly heterozygous in cat breeds were selected for a forensic panel. Heterozygosity values obtained for the independent loci, ranged from 0.60-0.82, while the average cat breed heterozygosity obtained for the 11 locus panel was 0.71 (range of 0.57-0.83). A small sample set of outbred domestic cats displayed a heterozygosity of 0.86 for the 11 locus panel. The power of discrimination of the panel is moderate to high in the cat breeds examined, with an average P(m) of 3.7E-06. The panel shows good potential for genetic individualization within outbred domestic cats with a P(m) of 5.31E-08. A multiplex protocol, designed for the co-amplification of the 11 loci and a gender-identifying locus, is species specific and robust, generating a product profile with as little as 0.125 nanograms of genomic DNA.  相似文献   
288.
Most major transnational corporations (TNCs) are domiciled in the First World and are owned and controlled largely by citizens of these countries. On the basis of an analysis of the largest corporations outside the USA by revenues published annually by Fortune magazine since the 1950s, this paper demonstrates that there have been major corporations from the Third World for decades. Most of the literature on Third World TNCs concentrates on the large number of relatively small companies that have operations abroad in low technology sectors. The argument of this paper is that systematic study of major corporations from the Third World is important for debates about the national bourgeoisie, comprador capitalism and the controversy that currently surrounds the contentious concepts of the developmental state and globalization.  相似文献   
289.
Does democracy influence economic policymaking and outcomes? Our study investigates the implications of Dahl's two dimensions of democracy (‘polyarchy’): contestation/competition and inclusion/participation. We hypothesize that increases in democratic competition inspire policy incrementalism, thus lowering growth volatility and generating fewer deep crises. Meanwhile, increases in substantive democratic inclusion – genuine political voice, or democratic participation in the presence of a minimum of contestation – should increase the political weight of relatively poor voters, who have a differentially strong aversion to deep growth crises. A statistical analysis of 149 countries for 1961–98 finds greater democracy associated with fewer years of sharply negative growth (‘crisis’), with both democratic contestation and substantive inclusion contributing to this outcome. Our conclusions question the wisdom of designing economic policy institutions that are intentionally insulated from the democratic process.  相似文献   
290.
Judges are under pressure both to combat crime with longer prison sentences and to increase the use of sentencing options which permit use of a graduated system of dispositions which can be used to rehabilitate offenders. The judges are faced with overcrowded prisons and a general lack of the community programs recommended by many professional organizations and scholars. It is recommended here that judges take an active role in encouraging the development of community-based alternatives such as local work release. This study found that a male judge is a more effective communicator than a bailiff and that he could cause a change in attitude toward work release in a sample of citizens. Thus, judges can anticipate some degree of success if they choose to participate in efforts to develop community support for sentencing alternatives.  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