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   1282篇
  免费   71篇
各国政治   73篇
工人农民   57篇
世界政治   99篇
外交国际关系   118篇
法律   692篇
中国政治   12篇
政治理论   292篇
综合类   10篇
  2023年   18篇
  2022年   18篇
  2021年   16篇
  2020年   35篇
  2019年   48篇
  2018年   48篇
  2017年   63篇
  2016年   64篇
  2015年   39篇
  2014年   60篇
  2013年   190篇
  2012年   57篇
  2011年   40篇
  2010年   39篇
  2009年   39篇
  2008年   47篇
  2007年   67篇
  2006年   47篇
  2005年   53篇
  2004年   41篇
  2003年   38篇
  2002年   44篇
  2001年   20篇
  2000年   20篇
  1999年   24篇
  1998年   13篇
  1997年   9篇
  1996年   8篇
  1995年   15篇
  1994年   10篇
  1993年   4篇
  1992年   20篇
  1991年   7篇
  1990年   8篇
  1989年   11篇
  1988年   8篇
  1987年   7篇
  1986年   8篇
  1985年   6篇
  1984年   4篇
  1983年   7篇
  1982年   4篇
  1981年   2篇
  1980年   4篇
  1975年   3篇
  1973年   2篇
  1969年   3篇
  1966年   3篇
  1962年   1篇
  1955年   1篇
排序方式: 共有1353条查询结果,搜索用时 15 毫秒
211.
This paper examines the partner selection of the lower classes during an urban crisis period in early industrial Belgian cities. It was found that in this period characterized by an economic transition, overpopulation, migration and a low standard of living, social heterogamy was high, whereas social homogamy increased, or was ‘restored’, in the subsequent period. The urban crisis effect on partner selection contradicts the claims of modernization theory that there was a gradual increase in societal openness and that societal openness was typically modern, but it fits the idea of the informalization of marriage, a process marked by an increase in unmarried cohabitation and illegitimacy.  相似文献   
212.
This article investigates marital patterns in the urban town of Vila do Conde, northwest Portugal, during the 19th century. The analysis, which is based on the application of the family reconstitution method, reveals differences in marital patterns between rural and urban settlements. It was observed that Vila do Conde displayed different patterns of marriage than those that have often been described for the northwestern region of Portugal, with an emphasis on lower levels of celibacy, as well as lower fertility rates. It was discovered that migration played a very important role in these dynamics. It is a fact that the increasing outflow of male emigrants had a distortion effect on the marriage market. Nevertheless, the influx of in-migrants to the town contributed to alleviate the adult male shortage and resulting gender imbalance, generating lower proportions of celibacy and higher levels of total fertility. Although several important publications have already identified demographic trends in many parishes of the region in focus, few have been concerned with urban parishes. This research aims to contribute to a better understanding of the population dynamics of urban centres in northwest Portugal when set within the context of a number of the structural changes specific to that region and Portugal as a whole in the 19th century.  相似文献   
213.
This is the first study in Dutch anthropometric historiography that describes and analyzes the development of the biological standard of living of girls and young women from the perspective of female adult stature. It is shown that adult stature of women, imprisoned in the second half of the nineteenth century and born between 1815 and 1865, slightly increased, approximately 1cm. From 1850 onwards stature of women born in the cities notably increased. Development of female adult stature was compared to that of male stature; both were quite similar. No circumstantial evidence was found that girls or young women were on a disadvantage with respect to nutrition and (medical) care.  相似文献   
214.
The population grows and ages. Older adults, which is the group of people sixty years of age and older, increasingly represents a numerically larger group. Therefore, the legal rules are issued, and must be of such a nature that adequately protects them. In particular labor standards in Mexico, containing general provisions, but are emissive in relation to work of older adults subordinate.  相似文献   
215.
There is an important moral difference between laws that criminalize drugs and prostitution and laws that make them illegal in other ways: criminalization violates our moral rights in a way that nonlegalization does not. Criminalization is defined as follows. Drugs are criminalized when there are criminal penalties for using or possessing small quantities of drugs. Prostitution is criminalized when there are criminal penalties for selling sex. Legalization is defined as follows. Drugs are legalized when there are no criminal penalties for manufacturing, selling and possessing large quantities of drugs. Prostitution is legalized when there are no criminal penalties for owning or operating a brothel or escort service, no criminal penalties for working as a paid agent for sex work, and no criminal penalties for paying someone for sex who is above the age of legal employment and sexual consent. The criminalization of drugs and prostitution violate the right of self-sovereignty in depriving individuals of important forms of control over their own minds and bodies, but nonlegalization does not violate this right. It is therefore consistent, as a matter of principle, to advocate decriminalization but to oppose legalization.  相似文献   
216.
217.
Abstract

This article suggests ways to better design, conduct, and interpret evaluations of the effects of housing mobility programs on participants, with emphasis on how to isolate neighborhood effects. It reviews earlier critiques of neighborhood effects research and discusses the key assumptions of housing mobility programs—about the benefits of affluent neighbors, the spatial organization of opportunity for the urban poor, and the meanings of “neighborhood” to residents, researchers, and policy makers.

Studying mobility contexts, especially in suburban areas, offers special challenges to researchers. More research is needed that looks at residents’ social ties and uses mixed‐methods approaches. Ethnographic data, in particular, would enhance the validity of the quantitative data that now dominate studies of neighborhood effects. Adding substantially to what we know about the processes or mechanisms—the “how” of neighborhood effects—mixed‐methods approaches would also make research much more useful to policy makers and program managers.  相似文献   
218.
This article, written in February 1998, describes political confusion, contradictions, and ambiguities (institutional as well as ideological) typical of the Kabila’s regime at that time. Political mobilisation as well as political identification were polarised by opposition between “local Zairians,” born from locally-born parents, and “new Congolese” who were born elsewhere or whose parent were born outside of the country. Other factors of political identification were ethnicity, regionalism, and generation. Given the fact that the new political regime suspended all political parties and that Kabila himself did not openly declare himself leader of a political movement, there was no open political activity. The article suggests that the new political crises is coming; it was confirmed by August 1998 rebellion/invasion.  相似文献   
219.
Migration is a common and essential livelihood strategy in the risk-prone environment of Sahelian West Africa. But migration is not a passive reaction to economic and environmental forces. Patterns of movement are determined by context-specific and complex dynamics, mediated by social networks, gender relations and household structures. IDS-based research on sustainable livelihoods illustrated this in two locations in Mali: in a village in the Sahelian dryland with different and gendered migration patterns of various ethnic groups; and exceptional patterns in the Sudano-Sahelian cotton region with extensive and long-lasting engagement in small cocoa and coffee plantations in Côte d'Ivoire.  相似文献   
220.
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