全文获取类型
收费全文 | 1396篇 |
免费 | 82篇 |
专业分类
管理学 | 178篇 |
民族学 | 13篇 |
人口学 | 125篇 |
丛书文集 | 3篇 |
理论方法论 | 173篇 |
综合类 | 10篇 |
社会学 | 915篇 |
统计学 | 61篇 |
出版年
2024年 | 2篇 |
2023年 | 17篇 |
2022年 | 5篇 |
2021年 | 7篇 |
2020年 | 34篇 |
2019年 | 45篇 |
2018年 | 51篇 |
2017年 | 71篇 |
2016年 | 52篇 |
2015年 | 42篇 |
2014年 | 63篇 |
2013年 | 206篇 |
2012年 | 88篇 |
2011年 | 77篇 |
2010年 | 56篇 |
2009年 | 52篇 |
2008年 | 49篇 |
2007年 | 54篇 |
2006年 | 59篇 |
2005年 | 37篇 |
2004年 | 43篇 |
2003年 | 47篇 |
2002年 | 57篇 |
2001年 | 26篇 |
2000年 | 25篇 |
1999年 | 23篇 |
1998年 | 23篇 |
1997年 | 13篇 |
1996年 | 19篇 |
1995年 | 18篇 |
1994年 | 5篇 |
1993年 | 18篇 |
1992年 | 12篇 |
1991年 | 9篇 |
1990年 | 9篇 |
1989年 | 5篇 |
1988年 | 7篇 |
1987年 | 6篇 |
1986年 | 5篇 |
1985年 | 3篇 |
1984年 | 6篇 |
1983年 | 2篇 |
1982年 | 10篇 |
1981年 | 3篇 |
1980年 | 5篇 |
1978年 | 2篇 |
1977年 | 4篇 |
1975年 | 2篇 |
1972年 | 1篇 |
1969年 | 1篇 |
排序方式: 共有1478条查询结果,搜索用时 15 毫秒
221.
222.
Child and Adolescent Social Work Journal - Youth who are victims of maltreatment and engage in delinquency are at a greater risk of adverse emotional and behavioral outcomes compared to those in... 相似文献
223.
224.
225.
A Comparison of Methods for Estimating the Benchmark Dose Based on Overdispersed Data from Developmental Toxicity Studies 总被引:2,自引:0,他引:2
Developmental anomalies resulting from prenatal toxicity can be manifested in terms of both malformations among surviving offspring and prenatal death. Although these two endpoints have traditionally been analyzed separately in the assessment of risk, multivariate methods of risk characterization have recently been proposed. We examined this and other issues in developmental toxicity risk assessment by evaluating the accuracy and precision of estimates of the effective dose ( ED 05 ) and the benchmark dose ( BMD 05 ) using computer simulation. Our results indicated that different variance structures (Dirichlet-trinomial and generalized linear model) used to characterize overdispersion yielded comparable results when fitting joint dose response models based on generalized estimating equations. (The choice of variance structure in separate modeling was also not critical.) However, using the Rao-Scott transformation to eliminate overdispersion tended to produce estimates of the ED 05 with reduced bias and mean squared error. Because joint modeling ensures that the ED 05 for overall toxicity (based on both malformations and prenatal death) is always less than the ED 05 for either malformations or prenatal death, joint modeling is preferred to separate modeling for risk assessment purposes. 相似文献
226.
Lori M. Zalka Meredith Downes Shawnta S. Friday Susan R. Perry Karen Paul Russell Abratt Peter Curwen 《International Journal of Value-Based Management》1998,11(2):179-195
This study compares attitudes toward business legitimacy in three countries. Positive attitudes toward business legitimacy
exist when there is a congruence between organizational activities and societal expectations. Businesses are concerned about
the extent to which negative attitudes toward business legitimacy will lead to increased government regulation. The results
suggest that business students in all three countries are similar in their attitudes toward business legitimacy; however,
blacks have more negative attitudes toward business legitimacy than do whites. This study resulted in the validation of a
scale that can be used to measure attitudes toward business legitimacy on a cross-cultural basis. Business legitimacy is a
major concern in South Africa as the predominately white business community seeks to give the emerging black majority a stake
in the existing economic system.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
227.
Compliance Strategies and Regulatory Effectiveness of Performance-Based Regulation of Chemical Accident Risks 总被引:2,自引:0,他引:2
This paper investigates the role that performance-based regulations can play in linking a firm's environmental, health, and safety concerns with their corporate strategy. The specific focus is on the performance standards required by the Clean Air Act Amendments (CAAA) which require firms that store or use certain chemicals to develop a Risk Management Plan (RMP) for reducing the likelihood and impact of accidents at their plants. Data from a series of case studies and interviews of executives in chemical firms reveal that proactive companies integrated many of the requirements of the CAAA into their management systems prior to the regulatory requirements. Most of these firms tend to be large ones. Small firms often lack the resources to implement these regulations and hence have tended to have a more difficult time with compliance. 相似文献
228.
Karen M. O'Brien Rebecca D. Dukstein Stacey L. Jackson Merideth J. Tomlinson Ngondi A. Kamatuka 《The Career development quarterly》1999,47(3):215-229
Researchers and practitioners embarked on a collaborative venture to develop, implement, and evaluate a career intervention program for 7th grade students who were at-risk for vocational underachievement. Students participating in the Career Horizons Program demonstrated enhanced confidence in performing tasks related to investigating, selecting, and implementing a career choice. They also considered a greater number of careers and selected those that were congruent with their interests. No change was found in confidence regarding degree of self-knowledge. Suggestions are provided for improving on the development and evaluation of career exploration programs to enhance career self-efficacy and broaden the career horizons of students in at-risk environments. 相似文献
229.
Cross‐sectional research has shown a link between adolescent substance use and educational motivation. The purpose of the current study was to examine this link in a longitudinal sample of African American youth. The study examined the interrelationships between alcohol and both marijuana use and school motivation over the high school years and their effect on graduation in 681 African American adolescents (50.8% female). School motivation was shown to relate to subsequent alcohol use throughout high school and marijuana use early in high school. School motivation did not affect graduation status, but alcohol and marijuana use were related to a lower likelihood of graduating from high school. Some gender differences and differences among those who had tried alcohol or marijuana at the first wave as opposed to those who had not tried each substance were found. The findings support a systems model where school experiences can affect substance use, which, in turn, can affect the completion of high school. 相似文献
230.
Sebastian Trew Stephanie Taplin Melissa O'Donnell Rhonda Marriott Karen Broadhurst 《Child & Family Social Work》2023,28(2):549-562
Limited research has directly sought the input of parents involved in the child protection system during pregnancy and with their infants. As the focus of these policies and practices, parents have a unique and important insight not available to others, so it is vital to obtain their input. As part of a larger Australian study, qualitative interviews were undertaken with 13 parents asking about their views and experiences. Parents predominantly became involved with child protection services during pregnancy through a prenatal report. Parents who previously had their newborn removed from their care described it as sudden and unexpected, leaving them distressed and unsupported post-removal, with a growing list of requirements for them to see their baby or for restoration to be considered. Domestic violence was a particular issue of concern for some mothers who expressed distress that their partners, perpetrators of violence, were allowed access to their infant with fewer requirements than for them. Improvements recommended by the parents included greater communication and preparation for the removal, better recognition of improvements in their situations and increased supports to be provided to parents both pre- and post-removal. Parental experiences provide an important guide to improving child protection practice with these families. 相似文献