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   1074篇
  免费   39篇
管理学   81篇
民族学   7篇
人口学   60篇
理论方法论   170篇
综合类   4篇
社会学   699篇
统计学   92篇
  2023年   6篇
  2021年   9篇
  2020年   24篇
  2019年   35篇
  2018年   32篇
  2017年   46篇
  2016年   40篇
  2015年   26篇
  2014年   41篇
  2013年   214篇
  2012年   32篇
  2011年   29篇
  2010年   21篇
  2009年   20篇
  2008年   38篇
  2007年   36篇
  2006年   28篇
  2005年   29篇
  2004年   41篇
  2003年   15篇
  2002年   27篇
  2001年   20篇
  2000年   18篇
  1999年   20篇
  1998年   30篇
  1997年   18篇
  1996年   15篇
  1995年   11篇
  1994年   6篇
  1993年   10篇
  1992年   9篇
  1991年   13篇
  1990年   9篇
  1989年   9篇
  1988年   11篇
  1987年   6篇
  1986年   7篇
  1985年   12篇
  1984年   12篇
  1983年   8篇
  1982年   7篇
  1981年   12篇
  1980年   11篇
  1979年   5篇
  1978年   8篇
  1976年   5篇
  1973年   4篇
  1970年   3篇
  1969年   3篇
  1966年   3篇
排序方式: 共有1113条查询结果,搜索用时 593 毫秒
81.
Overall, 19 percent of small employers offering health benefits made changes to their health plan between 2001 and 2002. Sixty-five percent increased deductibles and co-pays; 35 percent switched insurers; 30 percent increased the employee share of the premium; and 29 percent cut back on the scope of benefits. Twenty-six percent increased the scope of benefits offered. Nearly one-quarter of small employers offering health benefits think their firm would change coverage and 3 percent think it would drop coverage if the cost were to increase an additional 5 percent. Most small employers offer sound business reasons for offering health benefits to workers. Many report that it helps with employee recruitment and retention, and increases productivity. More than three-quarters report that offering health benefits is "the right thing to do." Most small employers that do offer health benefits report that it has a positive impact on various aspects of the business, such as recruitment, retention, employee attitude and performance, employee health status, and the overall success of the business. Most small employers that do not offer health benefits tend to think that not offering them has no negative impact on the above aspects of their business or the overall success of the business. However, those not offering benefits are more likely than those offering them to report that most of their employees are high-turnover and stay on the job only a few months. Small employers that offer health benefits tend to be distinctly different from those not offering them. Worker income in firms not offering health benefits tends to be considerably lower than in firms that do offer them. Employers not offering health benefits are more likely than those offering them to have a smaller proportion of full-time employees, and employers that do not offer health benefits have a larger proportion of females, workers under age 30, and minority employees. Of small employers that offer dependent coverage, more than 40 percent report that workers do not take coverage for their dependents because the dependents have coverage from somewhere else, but 35 percent report that employees decline dependent coverage because they cannot afford the premiums. Many small employers that do not offer health benefits are potential purchasers. Eleven percent are either extremely or very likely to start offering health benefits in the next two years, and 22 percent are somewhat likely to start offering health benefits.  相似文献   
82.
1. Women's adverse experiences as patients in secure and other mental health services appear to reflect sexism in wider social and historical contexts. 2. A Women's Service Development Group in a medium secure unit in the United Kingdom has made improvements in services for female patients, including an independent advocacy and befriending service, a Well-Woman Clinic, and other gender-sensitive activities. 3. In general, services were evaluated positively by women. Some dissatisfaction primarily was related to activities, issues concerning seclusion, and the lack of a day area for women only. 4. Women had mixed views about their contact with male staff and patients. Because of this, policies and services in this and related areas should account for individual needs.  相似文献   
83.
84.
In robust parameter design, variance effects and mean effects in a factorial experiment are modelled simultaneously. If variance effects are present in a model, correlations are induced among the naive estimators of the mean effects. A simple normal quantile plot of the mean effects may be misleading because the mean effects are no longer iid under the null hypothesis that they are zero. Adjusted quantiles are computed for the case when one variance effect is significant and examples of 8-run and 16-run fractional factorial designs are examined in detail. We find that the usual normal quantiles are similar to adjusted quantiles for all but the largest and smallest ordered effects for which they are conservative. Graphically, the qualitative difference between the two sets of quantiles is negligible (even in the presence of large variance effects) and we conclude that normal probability plots are robust in the presence of variance effects.  相似文献   
85.
The study describes an evaluation of a 48‐week physical activity and nutritional education programme for overweight/obese school‐age children using quantitative and qualitative methods. The majority of participants were obese or severely obese when enrolled, and while some improvements in body mass index, self‐esteem and engagement in a range of physical activities were noted, difficulties in evaluating a complex community‐based intervention were highlighted. Children, parents and health professionals described a range of benefits from attending the programme but more intensive services are likely to be needed for the most seriously obese children and for those families resisting intervention.  相似文献   
86.
This paper explores the reasons why video, and other visual representations have been largely ignored in sociology, whilst the possibilities of video as an empirical source have been sidelined by cultural studies. Discussions of methodology have raised doubts about notions such as objectivity and scientific knowledge, and about the power relationships involved in the research and writing processes, and techniques that one might employ in order to avoid such problems have been suggested. Yet the aims of such techniques are misguided if they serve only to further legitimate the 'truth' of the research itself. In this context I explore some of the possibilities of visual methods, such as video and photography, whilst also examining some of the ethical issues raised by them. In this respect, the paper explores the notion of a 'queer methodology'. This approach is indebted to the legacy of its predecessor, feminist methodology, but departs from this in several important ways. I will explore these differences and examine the possibility that a place for the visual within sociology is an inherently queer conception.  相似文献   
87.
One of the main advantages of factorial experiments is the information that they can offer on interactions. When there are many factors to be studied, some or all of this information is often sacrificed to keep the size of an experiment economically feasible. Two strategies for group screening are presented for a large number of factors, over two stages of experimentation, with particular emphasis on the detection of interactions. One approach estimates only main effects at the first stage (classical group screening), whereas the other new method (interaction group screening) estimates both main effects and key two-factor interactions at the first stage. Three criteria are used to guide the choice of screening technique, and also the size of the groups of factors for study in the first-stage experiment. The criteria seek to minimize the expected total number of observations in the experiment, the probability that the size of the experiment exceeds a prespecified target and the proportion of active individual factorial effects which are not detected. To implement these criteria, results are derived on the relationship between the grouped and individual factorial effects, and the probability distributions of the numbers of grouped factors whose main effects or interactions are declared active at the first stage. Examples are used to illustrate the methodology, and some issues and open questions for the practical implementation of the results are discussed.  相似文献   
88.
89.
Children of Adolescent Mothers: Cognitive and Behavioral Status at Age Six   总被引:1,自引:0,他引:1  
The cognitive and behavioral status at age six years of 185 children of adolescent mothers (60.5% boys) were assessed using the mother (CBCL) and teacher (TRF) report forms of the Child Behavior Checklist and the Bracken Basic Concepts Scale. There was evidence for impairment in all areas of functioning. More than half of the sample exceeded the borderline clinical cutoff (T = 60) on either the CBCL or TRF Total Problem score, and nearly half the sample had Bracken scores that were more than 1 SD below the normative mean. Only 26.9% of the children were in the normal range on all three measures. These results are discussed in terms of implications for social work practice with children and adolescent mother families.  相似文献   
90.
The contributions that adult men and women make to households in terms of paid and unpaid work have undergone substantial change, particularly in respect of women's responsibility for income generation, and have been seen as part of the processes of individualization. Recent contributions to the literature have suggested that children are now acquiring independence earlier as part of those same processes. The paper uses qualitative methods to explore the way in which parents in two-parent families, where both are employed, perceive the risks attached to children's exercise of greater independence, how they seek to ‘manage’ those risks and how far the perceptions of parents accord with those of children. We find parents’ perceptions of risk to be strong, but to have little to do with working patterns. In addition, they are often at odds with the actual behaviour of the child. Risks are managed by negotiation, in which children played an active part. We are also able to make some preliminary comments on the difficulties of interpreting scale measures in relation to interview evidence.  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