首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   213篇
  免费   13篇
管理学   21篇
民族学   1篇
人口学   15篇
理论方法论   39篇
综合类   1篇
社会学   135篇
统计学   14篇
  2024年   1篇
  2023年   6篇
  2022年   2篇
  2021年   4篇
  2020年   4篇
  2019年   15篇
  2018年   9篇
  2017年   16篇
  2016年   16篇
  2015年   5篇
  2014年   5篇
  2013年   45篇
  2012年   9篇
  2011年   11篇
  2010年   8篇
  2009年   6篇
  2008年   11篇
  2007年   7篇
  2006年   6篇
  2005年   6篇
  2004年   6篇
  2003年   1篇
  2002年   3篇
  2001年   2篇
  2000年   2篇
  1998年   1篇
  1997年   2篇
  1996年   7篇
  1995年   1篇
  1994年   1篇
  1987年   1篇
  1979年   4篇
  1977年   2篇
  1974年   1篇
排序方式: 共有226条查询结果,搜索用时 46 毫秒
51.
We draw on Carl Rogers’ client‐centred therapy theory and the theoretical lens of positive work relationships to explain why and how positive regard can be a powerful source for the development of employees’ sense of vitality, job performance and organizational citizenship behaviours (OCBs). We theorize that when employees experience relationships characterized by a high level of regard with their co‐workers they are likely to develop a sense of vitality, which in turn results in enhanced job performance and OCBs. These relationships are examined in both experimental and field studies. The results of these multiple studies provide general support for the power of positive regard in augmenting a sense of vitality and enhancing both job performance and citizenship behaviours.  相似文献   
52.
In this paper, an autoregressive time series model with conditional heteroscedasticity is considered, where both conditional mean and conditional variance function are modeled nonparametrically. Tests for the model assumption of independence of innovations from past time series values are suggested. Tests based on weighted L2‐distances of empirical characteristic functions are considered as well as a Cramér–von Mises‐type test. The asymptotic distributions under the null hypothesis of independence are derived, and the consistency against fixed alternatives is shown. A smooth autoregressive residual bootstrap procedure is suggested, and its performance is shown in a simulation study.  相似文献   
53.
Sixty-one foster parents from a central Canadian province participated in a telephone interview that included the question: “What are the benefits of fostering children who have the same values, beliefs and traditions as you?” A total of 51 unique responses were obtained and grouped together by 13 foster parents. Multidimensional scaling and cluster analysis were used to analyze the grouping data. Foster parents described five themes: expand on held values, child feels secure, smooth transitions, low stress and more in common. There were similarities and differences between the perspectives of foster parents interviewed and the literature. Implications for future research are discussed.  相似文献   
54.
Online voting platforms have been introduced in some locations as the solution to the many barriers to political participation that disabled people continue to face. Reading the experiences of disabled student voters on university campuses alongside broader trends in electoral reform taking place in jurisdictions across Canada allows us to attend to the dangerous ways in which conversations around access have been limited through virtual solutions that encourage the physical absence of disabled voters. This article situates these absences alongside other categories of exclusion – including groups who are formally disenfranchised – and recalls many unstated values that are active in shaping citizenship cultures. Probing online voting through a critical disability angle, we present a critique of techno-fixes that builds upon broader notions of accessibility and inclusion.  相似文献   
55.
Clinical trials of experimental treatments must be designed with primary endpoints that directly measure clinical benefit for patients. In many disease areas, the recognised gold standard primary endpoint can take many years to mature, leading to challenges in the conduct and quality of clinical studies. There is increasing interest in using shorter‐term surrogate endpoints as substitutes for costly long‐term clinical trial endpoints; such surrogates need to be selected according to biological plausibility, as well as the ability to reliably predict the unobserved treatment effect on the long‐term endpoint. A number of statistical methods to evaluate this prediction have been proposed; this paper uses a simulation study to explore one such method in the context of time‐to‐event surrogates for a time‐to‐event true endpoint. This two‐stage meta‐analytic copula method has been extensively studied for time‐to‐event surrogate endpoints with one event of interest, but thus far has not been explored for the assessment of surrogates which have multiple events of interest, such as those incorporating information directly from the true clinical endpoint. We assess the sensitivity of the method to various factors including strength of association between endpoints, the quantity of data available, and the effect of censoring. In particular, we consider scenarios where there exist very little data on which to assess surrogacy. Results show that the two‐stage meta‐analytic copula method performs well under certain circumstances and could be considered useful in practice, but demonstrates limitations that may prevent universal use.  相似文献   
56.
Conclusions The data presented in this paper and the earlier one in this series suggest that the effects of special comprehensive programs for school age mothers are seen most clearly in delay of the first pregnancy subsequent to the programs, as originally indicated by Klerman and Jekel (1973). Rather than terminating childbearing after the second pregnancy, those young mothers who had one subsequent pregnancy usually went on to become pregnant again rather quickly.A question can be raised about the generalizability of the finding from this study which is based on a rather small, black, poverty-lever sample. Although Furstenberg's (1976) results support those of this report in a population with similar characteristics, additional studies of white and non-poverty populations receiving a variety of services are critically needed if the country is to understand the phenomenon of adolescent pregnancy and find effective ways of minimizing its consequences.This study was supported by Grant #MC-R-090357 from the Maternal and Child Health Service, Public Health Service, Dept. of Health, Education and Welfare.  相似文献   
57.
58.
This article reports on a training program for group home supervisors that was designed to utilize positive youth development principles in work with youth transitioning from care to independent living. Over a period of 5 months, eight one-day training sessions took place across one state in the U.S. (Massachusetts) with a total of 186 group care staff in attendance. The evaluation consisted of three components: observation of participant feedback during training, training day post-test, and follow-up with participants 2–3 months after training. Implications of the data, particularly barriers to implementation of training programs, are discussed.  相似文献   
59.
Substance use prevention programs empowering individual adolescents to resist substance use through education and skills training are crucial to reducing substance use within this population. However, existing programs of this type are designed primarily for classroom use, and may not meet the needs of social workers intervening with adolescents outside classroom settings. A literature review identified six programs that have demonstrated statistically significant reductions in substance use when implemented outside the classroom. The current study describes these programs, identifies their common characteristics, and draws on additional prevention research to outline recommendations for practitioners seeking to apply the field’s most current knowledge base in community settings.  相似文献   
60.
In this study the researchers examined the knowledge, skills, and use of Evidence-Based Practice in a sample of social workers from different practice settings. Using an electronic survey, data were collected from a group of social work practitioners (N = 200). Participants in their 30s and 40s demonstrated the most knowledge and use of Evidence-Based Practice. In addition, a high percentage of social workers reported to be knowledgeable about social work research databases; a smaller percentage actually used online resources in their practice. Through this study the researchers add to what is currently known about social workers' perceptions, knowledge, and use of Evidence-Based Practice.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号