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   1334篇
  免费   55篇
管理学   115篇
民族学   16篇
人口学   137篇
丛书文集   4篇
理论方法论   179篇
综合类   18篇
社会学   844篇
统计学   76篇
  2023年   13篇
  2022年   10篇
  2021年   14篇
  2020年   26篇
  2019年   43篇
  2018年   64篇
  2017年   79篇
  2016年   61篇
  2015年   50篇
  2014年   50篇
  2013年   224篇
  2012年   49篇
  2011年   53篇
  2010年   38篇
  2009年   34篇
  2008年   49篇
  2007年   41篇
  2006年   47篇
  2005年   48篇
  2004年   47篇
  2003年   41篇
  2002年   29篇
  2001年   33篇
  2000年   16篇
  1999年   19篇
  1998年   13篇
  1997年   20篇
  1996年   15篇
  1995年   12篇
  1994年   18篇
  1993年   14篇
  1992年   12篇
  1991年   10篇
  1990年   10篇
  1989年   4篇
  1988年   8篇
  1987年   10篇
  1986年   11篇
  1985年   8篇
  1984年   7篇
  1983年   7篇
  1982年   4篇
  1981年   4篇
  1980年   4篇
  1979年   7篇
  1977年   5篇
  1976年   2篇
  1975年   1篇
  1973年   3篇
  1971年   1篇
排序方式: 共有1389条查询结果,搜索用时 15 毫秒
81.
Underemployment of people with visual impairments is an important problem in the world of work. Barriers to successful employment include the lack of informed decision making concerning AT as a workplace accommodation. Choosing effective Assistive Technology (AT) as an accommodation solution is imperative to successful employment of individuals with vision impairments. While not all jobs require AT as a part of an accommodation, when AT is needed, an informed choice is the best approach. This article describes the five step process for selecting appropriate AT for individuals with vision impairments in workplace accommodations developed by the Job Accommodation Network (JAN). Cases from the JAN database that involve people with vision impairments were examined. Resources to enable readers to further evaluate and implement effective AT solutions are provided.  相似文献   
82.
83.
Where strength training has been used in conjunction with functional-task training in older people, not only have there been improvements in leg strength but also improved function has been measured (e.g., Skelton & McLaughlin, 1996). Many studies use participants from care homes rather than community dwellers. We investigated changes in leg power, balance, and functional mobility in community-dwelling sedentary men and women over 70 years of age (n = 6 for training group [TR]; n = 10 for control group [CN]). Progressive training took place over 24 weeks using seated and nonseated exercise. For TR, leg power increased 40%, from 108 +/- 40 to 141 +/- 53 W (p < .01); dynamic balance increased 48%, from 22.3 +/- 7.9 to 33.1 +/- 6.1 cm (p < .01; functional reach); and functional mobility increased 12%, from 7.46 +/- 1.32 to 6.54 +/- 1.41 s (p < .05; timed walk). CN showed no significant change. In conclusion, a community-based exercise program led to large improvements in leg-extensor power, dynamic balance, and functional mobility.  相似文献   
84.
Adolescence is the segment of the life course when gender differences in mental health emerge and gender becomes a more salient factor shaping orientations toward oneself and views of one's place in the social world. This study uses mixture modeling, to identify trajectories of masculinity and femininity between ages 12 and 25, and OLS regression, to examine the effects of those trajectories on mental health in young adulthood (measured as depressive symptoms and alcohol problems at age 25). Four waves of prospective data from the Rutgers Health and Human Development Project are used; respondents (n = 447) are age 12 at Wave 1 (1979-81), 15 at Wave 2 (1982-84), 18 at Wave 3 (1985-87), and 25 at Wave 4 (1992-94). Results indicate that having relatively high and increasing levels of masculinity over adolescence decreases depressive symptoms in early adulthood for both males and females. Reflecting the privileging of males over females, the findings suggest that masculinity, but not femininity, is a central axis on which advantages and disadvantages across some dimensions of mental health accumulate over adolescence.  相似文献   
85.
1. Surgically or chemically induced premature menopause is a life transition characterized by a situational crisis superimposed on a developmental crisis. 2. After surgically or chemically induced premature menopause, women's self-concept shifts and evolves through an interactive or relational process. 3. Nurses can use crisis management to increase women's understanding of the physiological and psychological dimensions of premature menopause, facilitate their links with community support systems, and strengthen their existing social networks. 4. Effective crisis intervention approaches include structuring, verbalizing, clarifying, normalizing, and supporting.  相似文献   
86.
The present study examined the impact of domestic violence on maternal and infant health by assessing maternal health during pregnancy and infant health at two months postpartum. Two hundred and two women (68 battered and 134 non-battered) were recruited from the community and completed both pregnancy and 2-month postpartum interviews. Results revealed that domestic violence during pregnancy was associated with numerous health problems for mothers and infants including more health problems during pregnancy, more likelihood of premature labor, later entrance into prenatal care, lower infant birth weight, greater utilization of health care resources, and more prenatal substance use. After income was controlled, the relationship between violence and timing of prenatal care and infant birth weight became nonsignificant. Maternal social support was found to protect against the effects of violence for several health outcomes. The current findings suggest the need for domestic violence screening during pregnancy, as well as clinical interventions for battered, pregnant women in order to prevent serious physical and emotional problems for both mothers and their infants.  相似文献   
87.
We present a hypothetical case study using the Years of Potential Life Lost (YPLL) metric to compare cancer risks incurred by residents living near a Superfund site to occupational fatality risks incurred by workers employed in that site's remediation. Since cancer occurs late in life, and because we assume its mortality rate is 60%, each case results in 8.8 YPLL. Each occupational fatality, which typically occurs earlier in life, results in 38.1 YPLL. In our case study, the residential population of 5000 incurred 1.3 YPLL, compared to 5.7 YPLL incurred by the 500 workers. Several uncertain assumptions may influence our calculations; moreover, occupational risks may be viewed as more "voluntary" than risks incurred by residents. However, because the magnitude of the YPLL incurred by workers and residents may be comparable, risk managers should consider occupational risks when evaluating remedial alternatives.  相似文献   
88.
89.
This article aims to study the substitution of parental time between the mother and the father. Taking the “experience” of unemployment as a release from the time constraint, we analyse time transfers between partners in such a situation. A bivariate Tobit model is applied on the French time-use data. It shows that parents quite rarely substitute the time devoted to children between each other, except for child transportation and childcare. Parents do not want to relinquish their parental activities, a fact which reflects their desire to contribute to the children’s education, and the contribution of parental time to the balance of power between spouses. Exchanges remain asymmetric: non-employed fathers release less their partner from parental tasks than unemployed mothers do, which reflects the weight of gender social norms.  相似文献   
90.
This paper reviews a variety of studies in which multi-attribute utility theory (MAU) has been used successfully to aid group decision processes and discusses the incorporation of MAU in Group Decision Support Systems (GDSS). GDSS of various levels of automation have been proposed to aid group decision making. A number of commercial GDSSs are available which are capable of aiding generation of alternatives, their evaluation, and selection. Many authors have promoted the incorporation of quantitative decision making models in GDSS. The most appropriate quantitative tool for GDSS is MAU, but MAU has rarely been utilized. The cases reviewed illustrate that the use of MAU techniques is not prohibitively difficult or complex.  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