全文获取类型
收费全文 | 169篇 |
免费 | 1篇 |
专业分类
管理学 | 16篇 |
民族学 | 1篇 |
人口学 | 23篇 |
丛书文集 | 1篇 |
理论方法论 | 15篇 |
综合类 | 2篇 |
社会学 | 79篇 |
统计学 | 33篇 |
出版年
2023年 | 1篇 |
2022年 | 1篇 |
2020年 | 1篇 |
2019年 | 2篇 |
2018年 | 5篇 |
2017年 | 8篇 |
2016年 | 4篇 |
2014年 | 2篇 |
2013年 | 34篇 |
2012年 | 2篇 |
2011年 | 11篇 |
2010年 | 5篇 |
2009年 | 3篇 |
2008年 | 5篇 |
2007年 | 3篇 |
2006年 | 4篇 |
2003年 | 6篇 |
2002年 | 7篇 |
2001年 | 4篇 |
2000年 | 2篇 |
1999年 | 6篇 |
1998年 | 5篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 4篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 3篇 |
1980年 | 4篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1971年 | 2篇 |
1969年 | 1篇 |
1968年 | 4篇 |
1966年 | 1篇 |
1965年 | 2篇 |
排序方式: 共有170条查询结果,搜索用时 15 毫秒
61.
ABSTRACT Baccalaureate social workers respond to documentation and record-keeping demands of regulatory organizations that oversee or fund social service agencies. Learning to accurately document client needs, progress, and service delivery outcomes is important in ensuring that clients are receiving effective services. Despite the importance of documentation skills, many undergraduate social work programs do not provide sufficient curriculum content on client record keeping. The authors report the results of a study that examined changes in baccalaureate social work students’ perceptions of their documentation skills after completing a required documentation course. The sample size included 101 students at pretest and 97 students completing the post-test. Statistically significant findings show students perceived an increase in knowledge in three areas of documentation: 1) formats, 2) content, and 3) writing skills. The authors discuss implications for social work education and practice. 相似文献
62.
Previous studies of the inverse association between breastfeeding and contraceptive use have relied on current status data on at least one of the variables. In this paper we suggest a new way of modelling the joint temporal association of the adoption of contraception and the termination of breastfeeding over the course of a birth interval. The approach is implemented with survey data from rural Mexico. It involves first estimating a competing-risks model in which both hazards are considered simultaneous, together with a set of relevant covariates. Conditional analyses are then carried out to estimate the hazards of each event conditional on the timing of the other. By comparing the covariates, we gauge the extent to which the occurrence of one event raises or lowers the hazard of the other. The results show that, in rural Mexico, the timing of the termination of breastfeeding and that of starting contraceptive use are closely related, and that there exists a surprisingly neat interval of 120 days in which the action takes place. 相似文献
63.
Numerical approaches to developing accurate and efficient approximations to combined likelihoods of population correlation matrices in meta-analysis under normality assumptions for the data are studied. The likelihood is expressed as a multiple integral over the unit cube in (p ? 1)-dimensional space, where p is the row and column dimensionality of the correlation matrix. Three types of computation are proposed as ways to calculate the likelihood for any population correlation matrix P. As an application, inference is explored concerning intercorrelations among math, spatial and verbal scores in a SAT exam. Comparisons are made with conventional methods. 相似文献
64.
Joel Leon Telles 《The Sociological quarterly》1980,21(3):321-334
Goffman argues that individuals offer themselves to the group through well demeanored appearance for which they are granted deference. In this paper, I try to expand Goffman's insights by focusing directly on demeanor itself. From observations in Intensive Care Units, I find that demeanor is an achievement, a cooperative social accomplishment, and a form of deference. It is normatively a working ideal by which individuals gain acceptance as competent group members. A well de-meanored appearance makes interaction more pleasant; it permits others to antici pate that one will try to conform to interactional norms; it facilitates whatever task is at hand; it validates the deference that an individual grants; and it is itself a form of deference. It does not remain the responsibility of the individual, and we must therefore examine how groups constitute individuals. From the analysis, I derive explanations of the level of demeanor in a given setting, and propositions predicting the behavior of individuals within a setting. 相似文献
65.
The current literature on the effects of new parental relationships following separation on the child's well-being has overemphasized remarriage, per se, and has failed to analyze other types of relationships. The present study examines how mother and child adjustment varies among four categories of "blending": (a) remarriage, (b) living together but not remarried, (c) seriously involved but not living together, and (d) not seriously involved. 相似文献
66.
67.
68.
Michelle L. Trevenen Berwin A. Turlach Peter R. Eastwood Leon M. Straker Kevin Murray 《Australian & New Zealand Journal of Statistics》2019,61(3):273-298
Accelerometry is a low‐cost and noninvasive method that has been used to discriminate sleep from wake, however, its utility to detect sleep stages is unclear. We detail the development and comparison of methods which utilise raw, triaxial accelerometry data to classify varying stages of sleep, ranging from sleep/wake detection to discriminating rapid eye movement sleep, stage one sleep, stage two sleep, deep sleep and wake. First‐ and second‐order hidden Markov models (HMMs) with time‐homogeneous and time‐varying transition probability matrices, along with continuous acceleration observations in the form of a Gaussian‐observation HMM and K‐means classified acceleration in a discrete‐observation HMM were explored. In addition, generalised linear mixed models (GLMMs) with binary and multinomial responses and logit link functions were considered as was whether incorporating adjoining acceleration information into the models improved prediction. Model predictions were compared to the reference‐standard in sleep detection (polysomnography) and outcome accuracies were calculated. Consistently, HMMs yielded greater sleep stage detection than GLMMs but there was little difference between first‐ and second‐order HMMs. Varying degrees of difference were observed when comparing Gaussian‐observation HMMs to discrete‐observation HMMs, and time‐varying HMMs yielded greater discrimination than time‐homogeneous HMMs, as did models which considered adjoining acceleration information. These results suggest that wrist‐worn accelerometry data may be able to detect sleep stages but that further investigation is required to optimise classification accuracy. 相似文献
69.
This paper explores the estimation of the area under the ROC curve when test scores are subject to errors. The naive approach that ignores measurement errors generally yields inconsistent estimates. Finding the asymptotic bias of the naive estimator, Coffin and Sukhatme (1995, 1997) proposed bias-corrected estimators for parametric and nonparametric cases. However, the asymptotic distributions of these estimators have not been developed because of their complexity. We propose several alternative approaches, including the SIMEX procedure of Cook and Stefanski (1994). We also provide the asymptotic distributions of the SIMEX estimators for use in statistical inference. Small simulation studies illustrate that the SIMEX estimators perform reasonably well when compared to the bias-corrected estimators. 相似文献
70.