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   21968篇
  免费   537篇
  国内免费   1篇
管理学   2760篇
民族学   99篇
人才学   3篇
人口学   1927篇
丛书文集   115篇
教育普及   3篇
理论方法论   1925篇
综合类   210篇
社会学   10999篇
统计学   4465篇
  2023年   113篇
  2021年   121篇
  2020年   300篇
  2019年   405篇
  2018年   537篇
  2017年   732篇
  2016年   498篇
  2015年   406篇
  2014年   513篇
  2013年   4253篇
  2012年   675篇
  2011年   591篇
  2010年   487篇
  2009年   402篇
  2008年   463篇
  2007年   465篇
  2006年   473篇
  2005年   451篇
  2004年   368篇
  2003年   358篇
  2002年   388篇
  2001年   554篇
  2000年   505篇
  1999年   507篇
  1998年   353篇
  1997年   302篇
  1996年   383篇
  1995年   364篇
  1994年   381篇
  1993年   359篇
  1992年   394篇
  1991年   388篇
  1990年   398篇
  1989年   346篇
  1988年   370篇
  1987年   315篇
  1986年   289篇
  1985年   330篇
  1984年   340篇
  1983年   266篇
  1982年   233篇
  1981年   189篇
  1980年   196篇
  1979年   221篇
  1978年   187篇
  1977年   162篇
  1976年   135篇
  1975年   142篇
  1974年   121篇
  1973年   111篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
281.
The authors describe the socioeconomic characteristics and fertility patterns of female immigrants from Latin America to the United States, with a focus on reasons for fertility differentials. "Using the one per cent public use sample from the 1970 and 1980 United States census, we first compare changes in socio economic characteristics from 1970 to 1980, and then examine the determinants of fertility of female immigrants to the United States, aged 16-49, from four Latin American areas or countries of birth.... The findings...suggest that there are direct effects of demographic, assimilation, and socioeconomic variables beyond those mediated by the variables in each of these sets. Further, regardless of the model, the effect of the clusters of demographic characteristics is most apparent. Age categories and marital status are the strongest indexed determinants of immigrant fertility.... The effect of education and employment is strong. Among assimilation variables, duration of residence and language ability are significant determinants of Hispanic immigrant fertility." (SUMMARY IN FRE AND SPA)  相似文献   
282.
"A human capital framework is utilized to examine the economic progress of nine nationality groups of foreign workers [in Kuwait] using data from the 1983 national Labor Survey. The sources of earnings' variations of particular interest to us included different degrees of education and experience transferability, occupational affiliation and ethnic background. In general, the results derived from the analysis suggest that 1) foreign workers achieve a discernible economic progress as their residence lengthens; 2) the rate of economic progress varies depending on worker's education, home and Kuwait-specific experience, occupational status and ethnic background; and 3) about one third of the earnings inequality is due to unexplained factors including discrimination."  相似文献   
283.
"This article compares racial and ethnic patterns in interstate and interregional migration in the years 1960 to 1980.... This research looks at geographical assimilation--the extent to which patterns of migration and regional distribution of minority groups resemble those of whites. Attention is directed to United States-born Asian Americans, blacks, Hispanics, Native Americans and whites, and attempts to answer the following questions: 1) To what extent do the patterns of interstate migration of these groups resemble one another? 2) To what extent do the regional distributions and patterns of net regional migration of these groups resemble one another?" This is a revised version of a paper originally presented at the 1988 Annual Meeting of the Population Association of America (see Population Index, Vol. 54, No. 3, Fall 1988, p. 495).  相似文献   
284.
"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   
285.
Assaultive behavior. Does provocation begin in the front office?   总被引:3,自引:0,他引:3  
1. Provocation is an important risk predictor because these issues can be recognized, assessed, and appropriate interventions can be implemented to reduce the associated risks. It is only by the reduction of such "non-fixed" risk factors that any reduction of assaults can be accomplished. 2. Involuntary admission, patients with dementia or organic brain disorder, physical or verbal limits, staff attitude, denial of the possibility of assaults, and the educational level and clinical experience of the staff may help provoke an assaultive episode. 3. An important step is assessing the assault to identify provocation due to certain medical causes, and to document the extent of degeneration in patients with dementia or organic brain disorder. Medical intervention would be indicated and would appropriately address the causes of some violent episodes.  相似文献   
286.
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   
287.
The author discusses the magnitude of the refugee problem in selected countries of Africa, with a focus on the "conceptual, methodological and practical problems faced by refugee researchers in Africa." (SUMMARY IN FRE AND SPA)  相似文献   
288.
"This paper proposes a conceptual framework for analyzing migration as a household event and presents two public use microdata applications of this approach for out-migrants from New York City. The distribution of single- and multi-origin households by race and Hispanic origin permits a more rigorous analysis of household migration differentials....and the disaggregation of household members by migration status provides insight into the household outcomes of the migration process...." (SUMMARY IN FRE AND SPA)  相似文献   
289.
"This paper evaluates age, period, and cohort effects on marital fertility during onset of the Utah fertility transition (1880-1900). Computerized genealogies are used to derive age-period-cohort fertility rates for 49,842 once-married couples. Age, period and cohort effects on marital fertility are then estimated using Johnson's (1985) relational model. Declining marital fertility in Utah is shown to be explained by both lower fertility levels across periods and increasing age-specific limitation across cohorts. Direct cohort effects on fertility are insignificant. These results are consistent with prior research, and the view that fertility levels were adaptive (in part through birth spacing across ages) to immediate contexts of childbearing while age-specific fertility truncation increased across cohorts (in part through the more general diffusion of contraceptive innovations)."  相似文献   
290.
This study of a collection of self-observed lies told in everyday interactions indicated that all informants lied; that lying was, generally, an easy and spontaneous activity; and that our varied informants told lies in much the same manner and for the same reasons. The analysis of the general features of the interactions in which lies were embedded showed that many lies are the consequence of a preference system that promotes acceptance and hides rejection in the sequential organization of interaction. The lies found in pre-acceptance and pre-rejection sequences indicate that both parties contrive for acceptance. The negative cases of lies told in rejection of deprecating assessments suggest a broader theoretical template that encompasses the lies told for acceptance as a subset of the interactional preference for social solidarity. In contrast to the view that telling lies undermines social cohesion by interfering with trust, this study indicates that many lies are told to affirm affiliation.  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