全文获取类型
收费全文 | 9514篇 |
免费 | 232篇 |
专业分类
管理学 | 1315篇 |
民族学 | 49篇 |
人才学 | 1篇 |
人口学 | 907篇 |
丛书文集 | 38篇 |
理论方法论 | 812篇 |
综合类 | 307篇 |
社会学 | 4061篇 |
统计学 | 2256篇 |
出版年
2023年 | 50篇 |
2021年 | 62篇 |
2020年 | 119篇 |
2019年 | 174篇 |
2018年 | 235篇 |
2017年 | 327篇 |
2016年 | 280篇 |
2015年 | 190篇 |
2014年 | 231篇 |
2013年 | 1710篇 |
2012年 | 338篇 |
2011年 | 259篇 |
2010年 | 213篇 |
2009年 | 185篇 |
2008年 | 225篇 |
2007年 | 226篇 |
2006年 | 159篇 |
2005年 | 223篇 |
2004年 | 204篇 |
2003年 | 231篇 |
2002年 | 260篇 |
2001年 | 250篇 |
2000年 | 218篇 |
1999年 | 209篇 |
1998年 | 165篇 |
1997年 | 130篇 |
1996年 | 142篇 |
1995年 | 126篇 |
1994年 | 118篇 |
1993年 | 124篇 |
1992年 | 147篇 |
1991年 | 137篇 |
1990年 | 124篇 |
1989年 | 116篇 |
1988年 | 136篇 |
1987年 | 125篇 |
1986年 | 118篇 |
1985年 | 141篇 |
1984年 | 113篇 |
1983年 | 118篇 |
1982年 | 87篇 |
1981年 | 92篇 |
1980年 | 81篇 |
1979年 | 88篇 |
1978年 | 97篇 |
1977年 | 67篇 |
1976年 | 55篇 |
1975年 | 73篇 |
1974年 | 57篇 |
1973年 | 46篇 |
排序方式: 共有9746条查询结果,搜索用时 895 毫秒
991.
The twentieth century has been the hallmark for managing total productivity, where the emphasis is towards maximization of outputs commensurate with the consumption of inputs. This is being challenged now to evolve the world class manufacturing strategy requiring a paradigm shift. This shift is towards green productivity, which looks forward to socially appropriate production and consumption aiming at value innovation and resource conservation. This paper is an attempt to outline the concepts and experiential learning about green productivity. 相似文献
992.
Elaine P. Congress 《Journal of Social Work Education》2013,49(3):329-330
In addition to acting as teachers, social work educators can play many other roles in relation to their students—including sexual partner, friend, therapist, or employer. Combining the role of instructor with one of these other roles may lead to ethical violations and dilemmas. This article urges educators to consider their power differential and the potential for harm to their students before entering a dual relationship. It reviews the NASW Code of Ethics and relevant literature about dual relationships in practice and in academia; discusses examples of dual relationships in social work education; and formulates questions for educators to use in assessing ethical practice. 相似文献
993.
Andrews and Phillips (1986) gave a simplified proof for the result that established the nonnegative definiteness of the difference of the Moore-Penrose inverses of two nonoegative definite matrices, a result originally due to Milliken and Akdeniz (1977), The purpose of this paper is to offer a simple proof for a generalization of this result, 相似文献
994.
John P. Hansen M.D. Franz J. Herpok M.B.A. Joan N. Ritter M.B.A. 《Journal of American college health : J of ACH》2013,61(6):351-353
Abstract The Total Medical Record (TMR) system used by the Division of University Health Services at Duke University is an integrated medical and management information system. One module supports the financial needs of the division. To facilitate managerial performance, TMR automatically prints insurance claims, refund statements, revenue summary data, service utilization, itemized visit statements, monthly patient bills, dunning letters, and has a host of unique features that aid management with controlling the private fees generated by the University Health Services. In addition, the servicing of prepaid programs is accommodated, and the splitting of charges between prepaid and fee-for-service programs occurs automatically. 相似文献
995.
996.
Abstract. This paper presents four strategies for total productivity optimization of a real-life manufacturing company. These strategies are developed to attain overall growth, cost reduction, upgrading of technical efficiency and management effectiveness. Such strategies have been modelled mathematically by using a nonlinear mathematical programming approach. The model base and the data base used in implementing the strategies can serve as decision support to management for optimizing total productivity. 相似文献
997.
This article aims to contribute to the discussion about the ethics of research on children when studying sensitive issues such as violence. The empirical analysis is based on the accounts given by children (11 377) who completed a computer‐based questionnaire about their experiences of violence (‘The Finnish Child Victim Survey 2008’) and their reflections on the survey. We argue that experiences of violence should not be excluded from the research agenda on children due to ethical reasons, but that a more sophisticated practice should be developed instead to meet the needs and rights of children as informants. © 2010 The Author(s). Journal compilation 2010 National Children’s Bureau and Blackwell Publishing Limited. 相似文献
998.
Abstract In the field of stress research it is often assumed that social support as well as coping behaviour contributes to feelings of health and well-being. However, until now it has not been altogether clear whether a main-effect model or a buffer model was the more appropriate for explaining the role of these factors in response to stressful situations. In this paper, a research project is described in which both the direct and indirect effects of social support and coping were studied in the work situation of nurses. The results offer more support for a main-effect model than for a buffer or moderating-effect model, especially with regard to the coping strategies ‘active problem-solving’ and ‘palliative behaviour’. However, some moderating effects on nurses‘ reactions to their work situation were found for social support and for ‘comforting cognitions’ as a coping strategy. 相似文献
999.
1000.
The massive publicity surrounding the exodus of residents from New Orleans spurred by Hurricane Katrina has encouraged interest in the ways that past migration in the U.S. has been shaped by environmental factors. So has Timothy Egan’s exciting book, The Worst Hard Time: The Untold Story of those who survived the Great American Dust Bowl. This article places those dramatic stories into a much less exciting context, demonstrating that the kinds of environmental factors exemplified by Katrina and the Dust Bowl are dwarfed in importance and frequency by the other ways that environment has both impeded and assisted the forces of migration. We accomplish this goal by enumerating four types of environmental influence on migration in the U.S.: (1) environmental calamities, including floods, hurricanes, earthquakes, and tornadoes, (2) environmental hardships and their obverse, short-term environmental benefits, including both drought and short periods of favorable weather, (3) environmental amenities, including warmth, sun, and proximity to water or mountains, and (4) environmental barriers and their management, including heat, air conditioning, flood control, drainage, and irrigation. In U.S. history, all four of these have driven migration flows in one direction or another. Placing Katrina into this historical context is an important task, both because the environmental calamities of which Katrina is an example are relatively rare and have not had a wide impact, and because focusing on them defers interest from the other kinds of environmental impacts, whose effect on migration may have been stronger and more persistent, though less dramatic. 相似文献