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   3078篇
  免费   3篇
  国内免费   1篇
管理学   161篇
民族学   72篇
人才学   3篇
人口学   411篇
丛书文集   56篇
理论方法论   415篇
综合类   152篇
社会学   1643篇
统计学   169篇
  2021年   3篇
  2020年   3篇
  2018年   3篇
  2015年   4篇
  2014年   8篇
  2013年   9篇
  2012年   437篇
  2011年   290篇
  2010年   107篇
  2009年   39篇
  2008年   183篇
  2007年   206篇
  2006年   172篇
  2005年   155篇
  2004年   107篇
  2003年   105篇
  2002年   112篇
  2001年   87篇
  2000年   93篇
  1999年   73篇
  1998年   41篇
  1997年   31篇
  1996年   38篇
  1995年   35篇
  1994年   40篇
  1993年   60篇
  1992年   58篇
  1991年   51篇
  1990年   26篇
  1989年   44篇
  1988年   41篇
  1987年   33篇
  1986年   41篇
  1985年   34篇
  1984年   42篇
  1983年   34篇
  1982年   44篇
  1981年   41篇
  1980年   46篇
  1979年   22篇
  1978年   14篇
  1977年   11篇
  1976年   5篇
  1975年   6篇
  1974年   7篇
  1972年   5篇
  1971年   3篇
  1970年   6篇
  1967年   8篇
  1966年   5篇
排序方式: 共有3082条查询结果,搜索用时 15 毫秒
21.
The recruitment of "guest workers" between 1956 and 1973 by West German employers has given rise to new ethnic minorities. The Federal Republic of Germany (GFR) claims that it is not a country of immigration--a controversy that reflects the basic dilemma over policies towards foreign residents, who now comprise about 7% of the total population. The shift from temporary labor migration to long-term settlement has been accompanied by structural changes in the foreign resident population. The logic of the migratory process is inescapable: virtually all migrations, whether organized or spontaneous, start with movements of young adult workers. When recruitment stated in the late 1950s state migration policies were concerned only with short-term fulfillment of capital's labor requirements. The state established a system of institutionalized discrimination, through which temporary guest workers could be recruited, controlled, and sent away, as the interests of capital dictated. This policy was impracticable because many firms found that rotation led to problems of labor fluctuation and high training costs. The trend toward restrictive policies on migration continued in the early 1980s; rising unemployment and urban problems led to widespread hostility towards foreigners. 3 key issues need resolving quickly: 1) the granting of security of residence status, so that migrant families have a clear basis for planning their own future, 2) the extending of political rights to foreign residents, and 3) the issue of citizenship. Like other West European countries, the GFR has become a multiethnic society through the postwar labor migrations. The early reform of legal structures to give migrants more rights is a precondition for social peace, and for achieving the benefits which multiculturalism can offer to all members of society.  相似文献   
22.
"This article provides a portrait of Cuba's exiles [in the United States] that encompasses all their waves of migration, while utilizing the Cuban exodus to shed light on the broader phenomenon of refugee migration. It argues that to understand the changing social characteristics of the exiles over twenty years of migration, we need to understand the changing phases of the Cuban revolution. Utilizing the Cuban exodus as data, the article uses Egon F. Kunz's...theoretical framework for refugee migration to shed light on the refugees' varying experiences, while also using the actual Cuban refugee experience to react to Kunz's abstract model."  相似文献   
23.
The emigration of Jews from Dublin, Ireland, between 1930 and 1980 is analyzed. Data are from a survey carried out in 1980 among 130 randomly selected Jewish households in Dublin.  相似文献   
24.
25.
"Errors in disease classification can give misleading inferences for covariate effects when the probability of error is itself related to the covariates. More accurate inferences are possible using supplemental data on both true and fallible disease counts at various covariate levels. We present a method for incorporating such supplemental data into disease rate regression and use it to show that, although observed intercountry differences in European cervical cancer mortality rates are exaggerated by errors in death certification, they are not completely explained by such errors." The data concern Belgium, England and Wales, France, and Italy.  相似文献   
26.
Population growth,farmland, and the long-run standard of living   总被引:1,自引:0,他引:1  
This paper studies the natural-resources element in the theory of population growth over the very long run. In the context of the stock of land and Malthusian crises in earlier times, the model shows how resources have become more available rather than more scarce, even as population and income have increased.The paper sketches a mechanism which, added to the Malthusian system, leads to entirely different conclusions than does the Malthusian system. Using the illustration of food and land, change in knowledge and hence in the stock of resources is made a function of the stock of knowledge and the price of resources. The speed of adjustment depends on the economic and social climate for the development of new knowledge. Population growth first raises food and land prices, which then stimulate the creation of new resources, eventually leading to less scarcity of resources and lower prices than originally prevailed.That is, population growth creates new problems which in the short run constitute additional burdens which, in the longer run, lead to new developments that leave people better off than if the problems had never arisen.This paper benefitted from being presented in earlier draft at a Population Association of America meeting, to the Economic History workshop at the University of Illinois, and to a seminar of the International Union for the Scientific Study of Population in New Delhi. We appreciate valuable comments on earlier drafts from Stanley Engerman, E. L. Jones, William McNeill, and two anonymous referees. Gunter Steinmann acknowledges financial support from the Volkswagen Foundation and a travel grant from Fulbright Commission.  相似文献   
27.
"This article examines the 1980 earnings and earnings attainment process of Afro-Caribbean immigrants [to the United States] relative to Afro-Americans, native-born whites and foreign-born whites. Controlling for gender, the comparisons consider Caribbean Islanders as a whole and disaggregated by nation of origin. The results indicate that, in 1980 at least, fact did not justify the opinion that any West Indian subgroup had higher gross or net earnings than native-born blacks. Rather, a few non-English speaking subgroups fared worse. In addition, regardless of national background, Caribbean-born men experienced vast earnings disparities relative to white men. This was not the case for West Indian women, whose net earnings were, at minimum, equivalent to those of white women. Further analysis suggests that, for most Caribbean groups, West Indian background adds little to an understanding of the earnings attainment process that cannot be obtained from other measurable characteristics."  相似文献   
28.
The author describes the use of a model to investigate "the age composition of the stationary population resulting from a condition of below replacement fertility and a continuous stream of immigrants, the size of which for any age remain invariant over time.... We have shown that the number dying among [migrants] is the same as the number of them entering over any time interval, and that is precisely how their stationarity is maintained." The geographical focus is on developed countries that are experiencing below-replacement fertility levels. (SUMMARY IN FRE AND SPA)  相似文献   
29.
In this paper we attempt to explain the occurrence of population cycles in industrialised economies where the birth rate depends on the difference between the actual and the expected consumption rate. This model of an endogenously growing population brings together Easterlin's idea of an adapting aspiration level with the neoclassical optimal growth paradigm. It is shown that in this highly aggregated demo-economic system (i.e., without inclusion of the age structure of a population) swings both in the economic and demographic variables may exist. The reason behind this strange optimal behaviour is identified to be an intertemporal substitution effect between current and future levels of consumption.We wish to thank A. Novak for helpful assistance and an anonymous referee for useful comments. Financial support by the Austrian Science Foundation under contract No. P6601 is acknowledged.  相似文献   
30.
There has been a perceived increase in the number of medical negligence claims in recent years. The modern metropolitan medical examiner is increasingly called upon to deal with numerous medical, legal, social, and ethical issues. Nowhere is the role of the medical examiner more important than in the investigation of deaths related to surgical, diagnostic, anesthetic, or therapeutic procedures. Medical examiners have an important role in the investigative process. Through utilization of the offices and services of the medical examiner, questions raised by families, physicians, and other hospital employees may be satisfactorily answered a priori, and litigation may therefore be averted.  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