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   1974篇
  免费   120篇
各国政治   176篇
工人农民   124篇
世界政治   235篇
外交国际关系   146篇
法律   1025篇
中国共产党   1篇
中国政治   10篇
政治理论   356篇
综合类   21篇
  2023年   27篇
  2022年   17篇
  2021年   37篇
  2020年   64篇
  2019年   90篇
  2018年   114篇
  2017年   133篇
  2016年   132篇
  2015年   87篇
  2014年   124篇
  2013年   343篇
  2012年   106篇
  2011年   86篇
  2010年   53篇
  2009年   45篇
  2008年   72篇
  2007年   87篇
  2006年   61篇
  2005年   45篇
  2004年   62篇
  2003年   47篇
  2002年   34篇
  2001年   31篇
  2000年   34篇
  1999年   18篇
  1998年   20篇
  1997年   9篇
  1996年   6篇
  1995年   13篇
  1994年   7篇
  1993年   10篇
  1992年   6篇
  1991年   7篇
  1990年   6篇
  1989年   3篇
  1987年   6篇
  1986年   2篇
  1985年   4篇
  1984年   6篇
  1983年   2篇
  1982年   3篇
  1977年   2篇
  1976年   2篇
  1975年   2篇
  1974年   4篇
  1972年   5篇
  1971年   2篇
  1967年   4篇
  1966年   4篇
  1965年   2篇
排序方式: 共有2094条查询结果,搜索用时 15 毫秒
951.
Alcohol affects memory in many, and mostly negative, ways. This is a problem in legal contexts as many witnesses are alcohol intoxicated when taking part of the critical event. However, research is sparse regarding how, and under what circumstances, the reports of alcohol intoxicated witnesses differ from those of sober witnesses. This study investigated whether alcohol intoxicated and sober eyewitnesses differ regarding completeness, accuracy, and type of information reported, as well as whether gender influenced these variables. Eighty-seven healthy men (n = 44) and women (n = 43) received either an alcoholic beverage (0.7 g/kg) or a control (juice) in a laboratory setting before viewing a film picturing intimate partner violence. Ten minutes after viewing the film, they were interviewed. Reports by alcohol intoxicated women were less complete, but as accurate, as sober women's. In contrast, intoxicated and sober men did not differ regarding completeness or accuracy. Furthermore, compared with sober women, intoxicated women reported fewer actions but no difference was found between the groups regarding reported objects. At this moderate dose, alcohol affected women's reports more than men's, which may be because alcohol affects attention and memory consolidation more clearly at a lower dose for women than for men.  相似文献   
952.
The transition to capitalism has been one of the most discussed issues in the historiography of the rural United States in the 18th and 19th centuries, but the typology, and the “market revolution” construed upon it, are problematic. The article explores some of these problems by examining the commercialization of eastern Canadian agriculture, which was a prolonged process starting in the beginning of the 19th century in the St. Lawrence–Great Lakes axis and ending during the 1960s in the outlying parts of Quebec, Ontario, and the Maritime Provinces. It is difficult to identify clear trends in the numbers yielded by evidence from this region for the time period in question. Highly commercial farms were more likely than the others to transfer all their property to their children. Deficit farmers were much more likely than the others to transfer all their property to outsiders. But the data do not support the view that farmers who were keen on turning their farms into moneymaking businesses adopted property transmission practices that were markedly different from the others. And before the 1830s, there was really no need to have strategies in place because land was plentiful.  相似文献   
953.
The first measurements of differential mortality by sex took place at the end of the seventeenth century. Once its existence has been clearly shown during the eighteenth century by the works of Struyck, Kersseboom, Süssmilch, Deparcieux and others, what analysis emerged? If one of the two sexes benefited from a longer life, was this rule valid in all places and for all ages? All the demographers observed that such a difference began during infancy and childhood. How can it be explained that children were not equal in the face of death? Why did so many boys die before their teenage years? We can find several types of explanation: the will of God, the natural order, the biological constitution and the social habits of children of more than one year old.  相似文献   
954.
According to the famous economist and Nobel prize winner Amartya Sen women have a significant biological advantage over men. Despite this fact women do not always live longer. In today's third world, but also in some areas in Europe at the end of the 19th and the beginning of the 20th century we find so-called excess female mortality. In this paper we examine child mortality in The Netherlands in general and gendered patterns of child mortality in particular. The focus is on differential mortality patterns by gender for infants, older children, and young adults up to age 20 in the second half of the 19th century. The analysis takes place at three levels. We start off with an exploration of sex differentials in mortality at the national level, based on the existing literature. We next examine gender differentials in mortality at the level of several Dutch communities, in the region called Twente, focussing on the differences between the city and the countryside. The final part of the analysis focuses on the micro level of the individual and his or her family in the rural community of Lonneker located in the Twente region. In this part of our study we make use of longitudinal individual level data which are analysed with event history methodologies. Our analysis clearly demonstrates that young women and girls in The Netherlands were not always in a position to fully capitalise upon their greater biological advantage and suffered instead considerable excess mortality. Especially in the rural parts of the country girls had lower survival chances. The individual level analysis confirms the importance of sex in explaining child and adolescent mortality. These gendered mortality risks can however not be attributed to social and economic household characteristics. The analysis also shows that, when death came, it literally affected the entire family. This phenomenon, better known under the label ‘death clustering’, may have been an effect of parental incompetence.  相似文献   
955.
In this article, the process of social reproduction has been analyzed in Lorca, a municipality in the western Mediterranean region of Murcia (Spain) at the end of the 18th century. An exhaustive subset of the data from the local Godoy's census (1797) was used consisting of 29,875 individuals living in a total of 7566 households. This population was distributed between the town, the Huerta (the Murcian irrigated market garden community), and the countryside. Results confirmed, on the one hand, that a direct relationship existed between higher social status and size of household, with a higher number of older children in the households of land-owning farmers than of tenant farmers or day workers. More children in higher status households indicate that children left home later, and therefore inheritance problems rose, which influenced social reproduction within these groups. Spatially, a clear division can be found between the countryside with more male work-hands and a higher index of male activity and the Huerta with a certain female dominance.  相似文献   
956.
In this article, we analyse the dynamics of household per capita incomes using longitudinal data from Indonesia, South Africa, Spain and Venezuela. We find that in all four countries reported initial income and job changes of the head are consistently the most important variables in accounting for income changes, overall and for initially poor households. We also find that changes in income are more important than changes in household size and that changes in labour earnings are more important than changes in other sources of household income.  相似文献   
957.
Books received     
The Economy of Bangladesh. By Azizur Rahman Khan. London : Macmillan and New York: St. Martins Press, 1972. Pp. xviii + 196; £4.95.

Matching Employment Opportunities and Expectations: A Programme of Action for Ceylon. Report by the International Labour Office. Geneva, 1971. Pp. xvii + 251; £1.60 and U.S.$4.

Price Consistency in Development Planning. By Peter A. Cornelisse. Rotterdam University Press, 1973. Pp. xiv + 154 n.p.

The Mexican Economy: Twentieth‐Century Structure and Growth. By Clark W. Reynolds. New Haven: Yale University Press, 1970. Pp. xxiv, 468; £6.05.

Nutrition, National Development and Planning. Edited by A. Berg, N. S. Scrimshaw and D. L. Call. Cambridge, Mass.: M.I.T., 1973. Pp. 400. £4–50.

The Nutrition Factor: its Role in National Development. By Alan Berg, Portions with Robert J. Muscat. Washington: The Brookings Institution, 1973. Pp. xii 4‐ 290, Tables, Figures. $8.95.

The Ecology of Malnutrition in Mexico and Central America. By Jacques M. May and Donna L. McLellan. New York: Hafner, 1972. Pp. xiii + 397, tables, maps; £7.50.

The Ecology of Malnutrition in the Caribbean. By Jacques M. May and Donna L. McLellan. New York: Hafner, 1973. Pp. viii + 490, tables, maps; £9.95.  相似文献   
958.
This survey reviews the existing macro-level empirical literature on the link between infrastructure and development in a critical light. After providing a general framework that casts the problem in the context of an aggregate production function, it signals what are the relevant empirical questions to be addressed. This guides the systematic review of a number of empirical studies and the discussion of the main econometric challenges to the identification of the effect of infrastructure on output and productivity. Finally, building on related research, in particular in contract theory and political economy, the article spells out several promising research avenues.  相似文献   
959.
This article analyses the respective impact of aid, remittances and medical brain drain (MBD) on child mortality using panel and cross-country quintile-level data on respectively 84 and 46 developing countries. Our results show that remittances reduce child mortality while MBD increases it. Health aid also significantly reduces child mortality but its impact is less robust than the impact of remittances. Remittances seem to be more effective in reducing mortality for children belonging to households from the upper classes, whereas neither a pro-poor nor anti-poor effect is found for health aid.  相似文献   
960.
Abstract

We use mixed methods and first-hand household data in Mexico to investigate credit practices by households engaged in agricultural wage employment. Quantitative analysis shows evidence of rationing in the formal sector but also suggests the existence of mitigating mechanisms. Qualitative analysis provides additional insights. First, income patterns associated with agricultural wage generate income smoothing needs that are sometimes better met by the informal sector. Second, family networks can perform key functions as gateways to the formal sector, through specific informal arrangements that inject flexibility into formal rules and procedures.  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