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   2246篇
  免费   114篇
各国政治   145篇
工人农民   111篇
世界政治   227篇
外交国际关系   130篇
法律   1054篇
中国政治   12篇
政治理论   662篇
综合类   19篇
  2023年   13篇
  2022年   5篇
  2021年   19篇
  2020年   47篇
  2019年   56篇
  2018年   74篇
  2017年   96篇
  2016年   74篇
  2015年   61篇
  2014年   87篇
  2013年   359篇
  2012年   76篇
  2011年   101篇
  2010年   62篇
  2009年   79篇
  2008年   67篇
  2007年   85篇
  2006年   86篇
  2005年   86篇
  2004年   77篇
  2003年   91篇
  2002年   84篇
  2001年   44篇
  2000年   44篇
  1999年   38篇
  1998年   40篇
  1997年   39篇
  1996年   31篇
  1995年   35篇
  1994年   31篇
  1993年   21篇
  1992年   23篇
  1991年   16篇
  1990年   24篇
  1989年   15篇
  1988年   28篇
  1987年   17篇
  1986年   11篇
  1985年   18篇
  1984年   16篇
  1983年   12篇
  1982年   7篇
  1981年   9篇
  1980年   10篇
  1979年   5篇
  1978年   5篇
  1976年   7篇
  1975年   4篇
  1974年   4篇
  1973年   4篇
排序方式: 共有2360条查询结果,搜索用时 15 毫秒
81.
African agriculture is often dominated by smallholder farms composed of multiple plots. In policy circles it is often assumed that fragmentation coupled with small farm size is an impediment to increasing yields and thus decreasing poverty and food insecurity. There also exists an influential literature that explores the inverse relationship between farm size and yield. While there are many studies internationally, few have been conducted in Africa. Using an Ethiopian national survey, we explore the relationship between yield, farm size and fragmentation. We find an inverse relationship between farm size and yield, and a positive association between yield and land fragmentation.  相似文献   
82.
This paper explores how remittances influence happiness among migrants and their households of origin. It is based on a novel data set of matched samples of Bangladeshi migrant households (living in the UK and Malaysia) and their origin families in Bangladesh. Empirical findings suggest that remittances play a significant role in stimulating migrants’ happiness. We also find that the households of origin’s life satisfaction not only depends on receiving remittances from the emigrants, but also other factors such as number of migrants from the household living abroad and the migrants’ country of destination.  相似文献   
83.
This article on drone strikes in Pakistan offers a distinctive empirical case study for critical scholarship of counterterrorism. By asking how cosmopolitanism has developed through UK news discourse, it also provides a constructivist contribution to the literature on drones. I argue that UK news discourse is not cosmopolitan because it focuses on risk and places the Other beyond comprehension. US–UK networked counterterrorism operations have complicated accountability, and while a drive for certainty promoted more scrutiny of policy, news media outlets, academics and activists turned to statistical and visual genres of communication that have inhibited understanding of the Other.  相似文献   
84.
85.
The resilience of some high-profile white-collar criminals in the media gaze after prison may lead some to conclude, particularly as some research also supports this notion, that this group of offenders generally manages well after conviction. Research in this area is, however, small and largely American. The authors seek to add to this small body of research by offering findings on the impact of conviction on 17 UK convicted white-collar criminals after completion of their sentence. It provides a unique insight into the consequences of conviction, showing that although there were some offenders who did experience limited impact and coped well, there was also a significant group who suffered a decline in status, financial losses, negative media coverage, and relationship and mental health problems, to name some. The authors argue more research is needed on this group and their needs as they are often neglected by the criminal justice system.  相似文献   
86.
This article builds on Fernandez et al.'s 2015 review of Federal Employee Viewpoint Survey (FEVS) research by focusing on two unexplored areas: measurement models and measurement quality. Employing the notion of an auxiliary measurement theory as an organizing framework, the author assesses the use of FEVS survey items to operationalize theoretical constructs and procedures in order to establish their psychometric quality. Results indicate that there is considerable variability in how FEVS items have been used to measure theoretical constructs, which is expressed as high levels of overlap across FEVS‐derived scales. Inconsistency in the assessment of measurement quality is evident as well, with a bias toward convergent validity. Three cautionary tales are presented to demonstrate the fragility of FEVS data when used with a compromised auxiliary measurement theory. The article concludes with recommendations for future FEVS studies.  相似文献   
87.
Inclusive growth is contested yet adopted by the World Bank to reduce poverty and inequality through rapid economic growth. Research has tested inclusive growth in sectors including agriculture, but few studies apply it to tourism which is significant for many developing countries. The paper interrogates tourism-led inclusive growth: supply chains, economic linkages/leakage, ownership, employment and expenditure. It draws from fieldwork in Vietnam where tourism has rapidly developed with partial economic benefits for local communities, but does not appear to fall within the inclusive growth paradigm. It is unclear if tourism-led growth will become any more inclusive in the short-to-medium term.  相似文献   
88.
89.
90.
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   
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