全文获取类型
收费全文 | 663篇 |
免费 | 23篇 |
专业分类
管理学 | 88篇 |
民族学 | 2篇 |
人才学 | 1篇 |
人口学 | 60篇 |
丛书文集 | 2篇 |
理论方法论 | 61篇 |
综合类 | 5篇 |
社会学 | 365篇 |
统计学 | 102篇 |
出版年
2021年 | 7篇 |
2020年 | 13篇 |
2019年 | 15篇 |
2018年 | 22篇 |
2017年 | 20篇 |
2016年 | 17篇 |
2015年 | 12篇 |
2014年 | 16篇 |
2013年 | 94篇 |
2012年 | 15篇 |
2011年 | 19篇 |
2010年 | 12篇 |
2009年 | 13篇 |
2008年 | 29篇 |
2007年 | 25篇 |
2006年 | 16篇 |
2005年 | 9篇 |
2004年 | 16篇 |
2003年 | 20篇 |
2002年 | 26篇 |
2001年 | 14篇 |
2000年 | 19篇 |
1999年 | 15篇 |
1998年 | 13篇 |
1997年 | 15篇 |
1996年 | 21篇 |
1995年 | 12篇 |
1994年 | 14篇 |
1993年 | 11篇 |
1992年 | 13篇 |
1991年 | 10篇 |
1990年 | 8篇 |
1989年 | 4篇 |
1988年 | 5篇 |
1987年 | 4篇 |
1986年 | 5篇 |
1985年 | 7篇 |
1984年 | 10篇 |
1983年 | 10篇 |
1982年 | 14篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1979年 | 5篇 |
1978年 | 3篇 |
1977年 | 5篇 |
1976年 | 8篇 |
1975年 | 4篇 |
1974年 | 4篇 |
1973年 | 3篇 |
1970年 | 1篇 |
排序方式: 共有686条查询结果,搜索用时 0 毫秒
61.
Melamine contamination of food has become a major food safety issue because of incidents of infant disease caused by exposure to this chemical. This study was aimed at establishing a safety limit in Taiwan for the degree of melamine migration from food containers. Health risk assessment was performed for three exposure groups (preschool children, individuals who dine out, and elderly residents of nursing homes). Selected values of tolerable daily intake (TDI) for melamine were used to calculate the reference migration concentration limit (RMCL) or reference specific migration limit (RSML) for melamine food containers. The only existing values of these limits for international standards today are 1.2 mg/L (0.2 mg/dm2) in China and 30 mg/L (5 mg/dm2) in the European Union. The factors used in the calculations included the specific surface area of food containers, daily food consumption rate, body weight, TDI, and the percentile of the population protected at a given migration concentration limit (MCL). The results indicate that children are indeed at higher risk of melamine exposure at toxic levels than are other groups and that the 95th percentile of MCL (specific surface area = 5) for children aged 1–6 years should be the RMCL (0.07 mg/dm2) for protecting the sensitive and general population. 相似文献
62.
This article interweaves the ideas of sustainable development, sustainable societies, and the power of advanced information
technologies toward developing recommendations for social science research on information technology in society. Worldwide
concern has arisen over the potentially catastrophic consequences of global climate and environmental change. As a result,
sustainable development (i.e., the simultaneous protection of both the global environment and the global economy) is receiving
considerable attention. Necessary for achieving sustainable development are sustainable societies, which are capable of designing,
implementing, managing and evaluating long-term environmental programs. This article presents ten characteristics that describe
sustainable societies and discusses how information technologies, from wireless personal digital assistants to intelligent
agents to multi-media database systems, could support the evolution of sustainable societies. Topics for social science research
related to designing and ameliorating the negative consequences of eight hypothetical computer-based systems are presented.
Bruce E. Tonn is leader of the policy systems analysis group at Oak Ridge National Laboratory and co-principal investigator
of the National Center for Environmental Decision-making Research. His research interests include environmental and energy
policy, computers in society, decision making, and futures studies. He is past president of the Social Science Computing Association.
His research focuses on planning, assessment and evaluation, energy use and conservation, and education. 相似文献
63.
In the 1990s, the integrity and performance of nonprofit organizations in the United States have come increasingly under attack, and there are new calls to hold nonprofit organizations more accountable for their behavior and performance. This article reports on a study of the organizational structures of national nonprofit associations and asks how these umbrella organizations can help to self-regulate the sector through appropriate checks and balances between the national organization and local affiliates. The authors identify a number of differences in how associations with alternative structures hold local affiliates and national organizations responsible for their performances, and they conclude that structure is an avenue of self-regulation for nonprofit organizations deserving further attention. 相似文献
64.
Michael Robert Dennis Adrianne D. Kunkel Gillian Woods Paul Schrodt 《Analyses of Social Issues and Public Policy》2006,6(1):191-213
This article details the justification and plans of a research team for studying and helping evacuees of Hurricane Katrina from New Orleans to recover by encouraging experimental participants to disclose information about their related experiences in guided interview sessions. Team members' consideration and practice of ethical principles as researchers dealing with the potentially traumatized victims of a disaster are portrayed. Finally, related recommendations for researchers and policy makers are offered. 相似文献
65.
Examining the Impact of Changes in Maternal Employment on High School Completion Among Low-Income Youth 总被引:2,自引:1,他引:1
Karen A. Randolph Roderick A. Rose Mark W. Fraser Dennis K. Orthner 《Journal of Family and Economic Issues》2004,25(3):279-299
The passage of the Personal Responsibility and Work Opportunity Reconciliation Act and decisions about its re-authorization have resurrected interest in the impact of maternal employment on child outcomes in poor families. The emerging evidence suggests that employment stability among former welfare recipients is a key factor in making successful transitions from welfare to work. This investigation explores how changes in maternal employment in poor families relate to high school completion among at risk youths. Our findings show that a substantial number of mothers experience unstable employment patterns. This instability is positively correlated with dropout among adolescents. The paper concludes with policy implications for the next phase of welfare reform. 相似文献
66.
67.
68.
69.
Jeffery P. Dennis 《Gender Issues》2008,25(1):11-25
The invisibility of men and boys in scholarly discussions of the global sex trade was analyzed through a sample of 166 recent
articles published in social science journals. Most failed to acknowledge the existence of male sex workers at all. When male
sex workers were discussed, they were assigned considerably more agency than female sex workers, the chief danger ascribed
to them was HIV rather than violence, and the question of their sexual orientation was always addressed, whereas female sex
workers were always assumed heterosexual. The results are discussed in the context of world system theory, Orientalism, and
heteronormativity. 相似文献
70.
Despite the ubiquity of pauses in the personal and social fabric of everyday life, sociological analysis of this phenomenon has been limited in both scope and concern. In this article it is argued that pausing should not be relegated to the status of a residual category nor should pauses merely be conceptualized as breaks in action or periods of inactivity. Rather, it is suggested that pauses are an essential element of the social rhythm that demonstrates degrees of personal and community well-being and vitality. As well, pausing may be an important, perhaps even necessary, part of the process of commitment and self-esteem. A typology of pauses is offered and the implications of pausing in establishing the rhythm of human behavior are discussed. 相似文献