全文获取类型
收费全文 | 323篇 |
免费 | 16篇 |
专业分类
管理学 | 31篇 |
民族学 | 2篇 |
人口学 | 28篇 |
理论方法论 | 43篇 |
综合类 | 5篇 |
社会学 | 207篇 |
统计学 | 23篇 |
出版年
2024年 | 1篇 |
2023年 | 5篇 |
2022年 | 3篇 |
2021年 | 1篇 |
2020年 | 4篇 |
2019年 | 7篇 |
2018年 | 11篇 |
2017年 | 13篇 |
2016年 | 12篇 |
2015年 | 12篇 |
2014年 | 15篇 |
2013年 | 62篇 |
2012年 | 17篇 |
2011年 | 13篇 |
2010年 | 9篇 |
2009年 | 8篇 |
2008年 | 12篇 |
2007年 | 10篇 |
2006年 | 11篇 |
2005年 | 9篇 |
2004年 | 11篇 |
2003年 | 6篇 |
2002年 | 11篇 |
2001年 | 4篇 |
2000年 | 8篇 |
1999年 | 10篇 |
1998年 | 4篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 4篇 |
1993年 | 6篇 |
1992年 | 2篇 |
1991年 | 3篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1981年 | 1篇 |
1980年 | 3篇 |
1979年 | 2篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1973年 | 2篇 |
1972年 | 1篇 |
排序方式: 共有339条查询结果,搜索用时 218 毫秒
141.
142.
143.
The paper reviews public discourses and research on the safeguarding of other people’s children by adults at the neighbourhood level. There is much empirical evidence pointing to the existence of thriving informal communities of support and informal childcare for parents across the social classes. There appears to be less empirical evidence related to intervening with children and young people who may be at risk. Nonetheless, the limited evidence suggests that many neighbours, acquaintances and strangers do intervene, or say that they would. The paper concludes by considering the potential negative consequences of promoting the notion that safeguarding children is ‘everybody’s business’. 相似文献
144.
This paper studies how updating affects ambiguity attitude. In particular we focus on generalized Bayesian updating of the Jaffray–Philippe sub-class of Choquet Expected Utility preferences. We find conditions for ambiguity attitude to be the same before and after updating. A necessary and sufficient condition for ambiguity attitude to be unchanged when updated on an arbitrary event is for the capacity to be neo-additive. We find a condition for updating on a given partition to preserve ambiguity attitude. We relate this to necessary and sufficient conditions for dynamic consistency. Finally, we study whether ambiguity increases or decreases after updating. 相似文献
145.
Jeffrey Holland 《Serials Review》2013,39(2):140-143
146.
Ana G. Rappold Alan E. Gelfand David M. Holland 《Journal of the Royal Statistical Society. Series C, Applied statistics》2008,57(2):187-205
Summary. The paper provides a space–time process model for total wet mercury deposition. Key methodological features that are introduced include direct modelling of deposition rather than of expected deposition, the utilization of precipitation information (there is no deposition without precipitation) without having to construct a precipitation model and the handling of point masses at 0 in the distributions of both precipitation and deposition. The result is a specification that enables spatial interpolation and temporal prediction of deposition as well as aggregation in space or time to see patterns and trends in deposition. We use weekly deposition monitoring data from the National Atmospheric Deposition Program–Mercury Deposition Network for 2003 restricted to the eastern USA and Canada. Our spatiotemporal hierarchical model allows us to interpolate to arbitrary locations and, hence, to an arbitrary grid, enabling weekly deposition surfaces (with associated uncertainties) for this region. It also allows us to aggregate weekly depositions at coarser, quarterly and annual, temporal levels. 相似文献
147.
Hahn (1977) suggested a procedure for constructing prediction intervals for the difference between the means of two future samples from normal populations having equal variance, based on past samples selected from both populations. In this paper, we extend Hahn's work by constructing simultaneous prediction intervals for all pairwise differences among the means of k ≥ 2 future samples from normal populations with equal variances, using past samples taken from each of the k populations. For K = 2, this generalization reduces to Hahn's special case. These prediction intervals may be used when one has sampled the performance of several products and wishes to simultaneously as- sess the differences in future sample mean performance of these products with a predetermined overall coverage probability. The use of the new procedure is demonstrated with a numerical example. 相似文献
148.
Granger causality tests and dynamic multipliers are used to explore the dynamic relationship among prices in the U.S. rice marketing channel. The dynamic multipliers provide information about the speed and magnitude of dynamic price adjustments that is not provided by the Granger causality tests. This information is shown to be useful in explaining the underlying economic relationship among the time series of prices. 相似文献
149.
Ruth Grant Kalischuk Nadine Nowatzki Kelly Cardwell Kurt Klein Jason Solowoniuk 《International Gambling Studies》2013,13(1):31-60
This paper offers an overview of the existing literature concerning problem gambling and families and identifies gaps in current research knowledge on this topic. Relevant theoretical perspectives are outlined and the role of familial factors in the development of problem gambling is discussed. This is followed by a focused review of the effects of problem gambling on family members, specifically the spouse, children and parents. Available treatments and therapies for family members are also reviewed. The paper concludes by identifying the limitations of existing knowledge and some directions for future research on this topic. 相似文献
150.
P. Brandon Bookstaver Jenna L. Foster Z. Kevin Lu Joshua R. Mann Chelsea Ambrose Amy Grant 《Journal of American college health : J of ACH》2013,61(1):69-73
ABSTRACT Objective: To investigate the hepatitis B virus (HBV) seroconversion rate among health sciences students. Participants: The study included pharmacy, doctor of nursing, and medical students over 18 years of age enrolled at the University of South Carolina between 2007 and 2011. Methods: The primary end point was HBV seroconversion rates among students at the initial reporting period. Seroconversion was defined as hepatitis B surface antibody (anti-HBs) level greater than or equal to 10 mIU/mL. Multivariate regression analysis was used to determine predictive factors of seroconversion. Results: Of 777 records, data were available for 709 students. An 83.9% seroconversion rate was observed after a mean of 10 years between vaccine receipt and anti-HBs evaluation. Students with incomplete HBV vaccine series and longer time between initial series and evaluation were less likely to exhibit antibody response. Conclusions: These data highlight the importance of assessment and documentation of HBV vaccination series among health sciences students prior to direct patient care activities. 相似文献