全文获取类型
收费全文 | 12085篇 |
免费 | 311篇 |
专业分类
管理学 | 1691篇 |
民族学 | 62篇 |
人才学 | 1篇 |
人口学 | 1274篇 |
丛书文集 | 65篇 |
教育普及 | 1篇 |
理论方法论 | 1061篇 |
现状及发展 | 1篇 |
综合类 | 153篇 |
社会学 | 5844篇 |
统计学 | 2243篇 |
出版年
2023年 | 79篇 |
2021年 | 61篇 |
2020年 | 179篇 |
2019年 | 250篇 |
2018年 | 284篇 |
2017年 | 396篇 |
2016年 | 321篇 |
2015年 | 198篇 |
2014年 | 258篇 |
2013年 | 2097篇 |
2012年 | 411篇 |
2011年 | 349篇 |
2010年 | 290篇 |
2009年 | 274篇 |
2008年 | 304篇 |
2007年 | 301篇 |
2006年 | 275篇 |
2005年 | 283篇 |
2004年 | 272篇 |
2003年 | 246篇 |
2002年 | 270篇 |
2001年 | 295篇 |
2000年 | 303篇 |
1999年 | 287篇 |
1998年 | 190篇 |
1997年 | 182篇 |
1996年 | 172篇 |
1995年 | 174篇 |
1994年 | 141篇 |
1993年 | 171篇 |
1992年 | 183篇 |
1991年 | 160篇 |
1990年 | 164篇 |
1989年 | 187篇 |
1988年 | 159篇 |
1987年 | 143篇 |
1986年 | 152篇 |
1985年 | 174篇 |
1984年 | 174篇 |
1983年 | 163篇 |
1982年 | 129篇 |
1981年 | 112篇 |
1980年 | 107篇 |
1979年 | 140篇 |
1978年 | 91篇 |
1977年 | 92篇 |
1976年 | 91篇 |
1975年 | 80篇 |
1974年 | 81篇 |
1973年 | 73篇 |
排序方式: 共有10000条查询结果,搜索用时 890 毫秒
881.
The purpose of this study was to demonstrate the development of safety, permanency, and child well-being indicators by using administrative data sets as well as by using these indicators as tools for evaluating Florida's Community-Based Care (CBC) initiative. Longitudinal data from 37 counties including 4 counties that implemented community-based care were examined in this study. The results of the study indicated that the overall performance of CBC counties is at least as good as the performance of their comparison run by the state counties. The findings that emerged from this study may provide important lessons for developing a performance measurement system in the child welfare field. 相似文献
882.
Susan?C.?EgbertEmail author Elizabeth?C.?Lamont 《Child and Adolescent Social Work Journal》2004,21(6):593-609
Three hundred and sixty-eight parents shared their perceptions of special-needs adoption preparation. Utilizing both quantitative and qualitative data to determine and understand what factors contribute to preparation, this study found that 12 child, family, and agency variables were correlated with perceived preparation, and that parents perceived level of preparation was predicted by the childs ability to attach, by the parents relationship with the agency, by the duration of the adoption, and by the parents ages at the time of adoption. Implications of these findings are discussed, as they relate to supporting parents, children, and families in special-needs adoptive placements. 相似文献
883.
DeMarco R Flaherty L Glod C Merrill N Terk K Plasse M 《Journal of psychosocial nursing and mental health services》2004,42(5):36-43
This pilot study compared psychiatric health care team members' perceptions of unit quality with discharged clients' perceptions of quality of care received on the unit. The staff members were from four different service units in one acute care psychiatric facility. The study used the Perceptions of Unit Quality (PUQ) scale, a valid and reliable outcome measurement instrument, developed by Cronenwett. Most quality assurance instruments that exist have focused on individual caregivers' or service-specific views of quality, but the PUQ scale allows quality assurance data that represent team performance to be described through team perceptions of quality. Results of this pilot study suggest that use of the PUQ scale, in conjunction with clients' perceptions of unit quality, may be a legitimate approach in continuous quality improvement efforts in psychiatric-mental health care centers. 相似文献
884.
Using data from 2,170 individuals who participated in Waves 8 (age 23) and 9 (age 29) of a multiyear panel study, this study examined whether alcohol and marijuana use in young adulthood increase one's risk for experiencing subsequent sexual or physical assault victimization, whether victims' own violent behavior or involvement in the sale of drugs explain any effects of substance use on victimization, and whether these associations differ by gender. Controlling for prior victimization, we found that marijuana use, but not alcohol use, predicted women's and men's subsequent sexual victimization and men's subsequent physical assault victimization, and that heavy alcohol use, but not marijuana use, predicted women's subsequent physical assault victimization. Whereas the links from marijuana use to victimization were explained by users' own violent behavior, the link from alcohol use to women's physical assault victimization was not. 相似文献
885.
Ladouceur R Boutin C Doucet C Dumont M Provencher M Giroux I Boucher C 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2004,20(2):181-185
This paper describes and evaluates “As luck would have it,” an awareness program completed by retailers in Quebec Province. This program, which is presented as a two-hour awareness promotion workshop, aimed to inform retailers about excessive gambling. More specifically, it provided answers to the following questions: (1) What is chance and randomness? (2) Is there a link between misunderstanding the concept of chance and excessive gambling? (3) How does one recognise the symptoms of this disorder? (4) How should retailers intervene if they decide to do so? Results showed that retailers developed a better understanding of problem gambling, could recognise its main symptoms, felt more capable of coping with excessive gamblers, and of choosing the most appropriate moment to do so. In the follow-up phase, retailers who had attended the workshop reported that they approached a problem gambler significantly more often than the retailers who had not attended the workshop, and had discussed how to help problem gamblers significantly more often. The practical implications of these results are briefly discussed. 相似文献
886.
DNA damage response mechanisms help ensure the fidelity of chromosomal transmission, and the failure of such mechanisms might lead to premature aging and cancer. A new report has established that casein kinase 2 (CK2), a protein that functions in diverse cellular processes, controls the activity of the DNA repair protein XRCC1. These results indicate that CK2 is a key participant in the cellular response to DNA damage. 相似文献
887.
Walter C. Labys 《Journal of Policy Modeling》1980,2(1):121-136
This paper is designed to bring into focus the numerous modeling attempts to analyze commodity price stabilization that have recently appeared. The studies examined begin with the Waugh-Oi-Massell framework and advance to econometric commodity modeling. Such a critique is considered necessary: None of the studies examined has overcome the myriad of problems that analysts have pointed out as essential for assessing the welfare outcomes of price stabilization schemes. As a consequence, stabilization analyses for similar commodities have produced conflicting results regarding predicted welfare outcome. The present appraisal attempts to provide a unity of direction to this work by (1) comparing recieved studies of a theoretical, empirical, and econometric modeling nature, and (2) suggesting possibilities for improving modeling analyses. 相似文献
888.
Adolescent suicide is increasing in the United States and the incidence of suicide gestures and attempts in juvenile correctional facilities is high. The attitudes of correctional staff toward adolescents and toward suicidal behavior may contribute to the increase. Suicide is often the outcome of a progression of problems that have isolated the adolescent from meaningful social relationships. Correctional staff must be aware of the phenomenon of adolescent suicide and be given training to deal with it effectively within the institution. Institutional staff have commonly seen suicide gestures or attempts as acting out behavior rather than a symptom of low self-esteem or inability to cope with institutional placement. This discussion examines the phenomenon of adolescent suicide and the impact the juvenile justice system has on its occurrence. It will also include an examination of interdisciplinary interventive strategies which can be used in an institutional setting. 相似文献
889.
Summary A recent survey by the authors has demonstrated that attemptedsuicide is common in parents, particularly mothers, who abusetheir children. However, the nature of the association betweenchild abuse and attempted suicide is complicated. Here somepossible types of association are suggested. In management ofchild abuse, special note should be taken of a history of attemptedsuicide in the parents because, in some cases, it suggests apoor prognosis. Similarly, young children of parents who attemptsuicide should be assessed in case they are at risk of abuse. 相似文献
890.