全文获取类型
收费全文 | 8784篇 |
免费 | 155篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1191篇 |
民族学 | 58篇 |
人口学 | 786篇 |
丛书文集 | 30篇 |
理论方法论 | 767篇 |
综合类 | 79篇 |
社会学 | 3904篇 |
统计学 | 2125篇 |
出版年
2023年 | 51篇 |
2022年 | 30篇 |
2021年 | 62篇 |
2020年 | 135篇 |
2019年 | 221篇 |
2018年 | 228篇 |
2017年 | 344篇 |
2016年 | 236篇 |
2015年 | 163篇 |
2014年 | 235篇 |
2013年 | 1667篇 |
2012年 | 278篇 |
2011年 | 274篇 |
2010年 | 198篇 |
2009年 | 214篇 |
2008年 | 230篇 |
2007年 | 209篇 |
2006年 | 221篇 |
2005年 | 213篇 |
2004年 | 183篇 |
2003年 | 162篇 |
2002年 | 190篇 |
2001年 | 219篇 |
2000年 | 222篇 |
1999年 | 195篇 |
1998年 | 150篇 |
1997年 | 134篇 |
1996年 | 120篇 |
1995年 | 105篇 |
1994年 | 151篇 |
1993年 | 108篇 |
1992年 | 134篇 |
1991年 | 141篇 |
1990年 | 125篇 |
1989年 | 111篇 |
1988年 | 93篇 |
1987年 | 96篇 |
1986年 | 95篇 |
1985年 | 94篇 |
1984年 | 103篇 |
1983年 | 81篇 |
1982年 | 79篇 |
1981年 | 57篇 |
1980年 | 68篇 |
1979年 | 67篇 |
1978年 | 56篇 |
1977年 | 59篇 |
1976年 | 41篇 |
1975年 | 51篇 |
1974年 | 46篇 |
排序方式: 共有8940条查询结果,搜索用时 0 毫秒
81.
Originally presented to the Society of Home Health Care Management of the American College of Physician Executives at its November 16, 1993, meeting in Tucson, Ariz., the program described in this article was the winner of the College's 1994 Innovations Award in Medical Quality Management, sponsored by Merck Sharp & Dohme. The program shows the potential of case management for both improvement in the quality of care and containment of costs for a managed care population with a substantial Medicaid segment. This article is part of a continuing series on innovative programs in home health care. 相似文献
82.
83.
"This article presents some of the latest available figures on illegal immigration in Japan, a process that did not assume significant proportions until the mid-1980s. It also discusses briefly the latest developments around 'immigration' policy--more precisely, the law on the entry and exit of aliens." 相似文献
84.
Dr. Diane Davis Ph.D. Dr. JoAnn Ray Ph.D. Claudette Sayles B.S.W. 《Child and Adolescent Social Work Journal》1994,12(6):445-463
Outdoor structured activities, such as Ropes Challenge Courses, are typically utilized as interventions for youth coming from urban settings. Evaluation of such programs is scanty at best. In this instance, the course experience is used as a prevention tool for high risk youth in a remote, rural setting of high unemployment, alcohol problems, and low income. The authors discuss the effectiveness of this approach, and the intended and unintended consequences for the rural community at large. The evaluation design relies on extensive qualitative methodology as well as quantitative methods to capture the unique nature of this rural project. 相似文献
85.
The strategy of grounded theory: possibilities and problems 总被引:1,自引:0,他引:1
Wells K 《Social work research》1995,19(1):33-37
86.
An evaluation of population projection errors for census tracts 总被引:1,自引:0,他引:1
"In this article we evaluate the accuracy and bias of projections of total population and population by age group for census tracts in three counties in Florida. We use [U.S. census] data from 1970 and 1980 and several simple extrapolation techniques to produce projections for 1990; we then compare these projections with 1990 census counts and evaluate the differences. For the total sample, we find mean absolute errors of 17%-20% for the three most accurate techniques for projecting total population and find no indication of overall bias. For individual age groups, mean absolute errors range from 20%-29%." This is a revised version of a paper presented at the 1993 Annual Meeting of the Population Association of America. 相似文献
87.
Abstract Many race-specific differences in health outcomes that have been observed in previous research have been attributed to class and racebased group differences which either facilitate or constrain health opportunities and behaviors. These include such variables as different rates of poverty, health insurance coverage, and access to medical care. However, these relationships have been inadequately examined in rural communities where minority status may be even more detrimental to health than in urban areas, due to various constraints on access to health care. We present an analysis that assesses the effects of community, family structure, sociodemographic, and medical care variables on self-reported health status among Hispanics, Mrican Americans, and non-Hispanic whites in six rural communities in Florida. Community structural characteristics had a significant effect on self-reported health, as did some of the measures of how respondents “experience” community. These relationships held even when other sets of variables were added to the models. Family/household characteristics and sociodemographic and medical care variables were less important in explaining self-reported health status. These findings suggest that community continues to be important in explaining differences in health status in rural areas. 相似文献
88.
Thomas K. Rudel 《Rural sociology》1998,63(4):533-552
Abstract Environmental social scientists have recently begun to use the term 'forest transition' to describe how forest cover changes as economic development occurs in nations. The hypothesized transition occurs as follows. An initial surge in economic activity in impoverished societies spurs deforestation, but as economic activity continues to intensify and cities grow larger, a 'turnaround' occurs, and deforestation gives way to reforestation. This paper uses cross-national data from five successive surveys of world forest resources to assess this empirical claim. A turnaround in forest cover trends does occur in a significant number of nations. The paper also evaluates two explanations for the turnaround, a wood scarcity hypothesis derived from microeconomic theory and an industrialization hypothesis linked to central place theory. It finds period specific support for the industrialization hypothesis. The paper concludes with a brief discussion of the implications of these findings for proposals to alleviate the biodiversity crisis through programs of reforestation. 相似文献
89.
Thomas K. Kenemore 《Child and Adolescent Social Work Journal》1998,15(4):249-249
90.
Kirisci K 《International migration (Geneva, Switzerland)》1996,34(3):385-412
"While several studies (in both Turkish and English) have been made on migration to the Ottoman Empire from the Caucasus and the Balkans during the nineteenth century...very little systematic and comprehensive research on migration has been undertaken on the period since the establishment of the Turkish Republic. This article, which aims to partially fill the gap, is divided into three parts: the issue of national refugees (refugees of Turkish origin) in relation to Turkey's overall refugee policy; Turkey's policy towards national refugees; and the volume and causes of refugee migration to Turkey since 1945." (SUMMARY IN FRE AND SPA) 相似文献