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:      
  示例: 沙坡头地区,人工植被区,变化  检索词用空格隔开表示必须包含全部检索词,用“,”隔开表示只需满足任一检索词即可!
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   176篇
  免费   0篇
管理学   20篇
民族学   3篇
人口学   18篇
理论方法论   10篇
社会学   96篇
统计学   29篇
  2024年   2篇
  2023年   2篇
  2022年   2篇
  2021年   2篇
  2020年   4篇
  2019年   6篇
  2018年   12篇
  2017年   14篇
  2016年   8篇
  2015年   4篇
  2014年   9篇
  2013年   41篇
  2012年   9篇
  2011年   4篇
  2010年   2篇
  2009年   3篇
  2008年   2篇
  2007年   7篇
  2006年   5篇
  2005年   6篇
  2003年   2篇
  2002年   3篇
  2001年   1篇
  2000年   1篇
  1996年   4篇
  1994年   1篇
  1993年   1篇
  1992年   2篇
  1991年   2篇
  1989年   2篇
  1987年   2篇
  1986年   1篇
  1985年   3篇
  1984年   2篇
  1981年   2篇
  1979年   1篇
  1976年   1篇
  1970年   1篇
排序方式: 共有176条查询结果,搜索用时 15 毫秒
61.
ABSTRACT

The literature on male-to-female transgender myriad problems such individuals face in their day-to-day lives, including high rates of HIV/AIDS, addiction to drugs, violence, and lack of health care. These problems are exacerbated for ethnic and racial minority MTFs. Support available from their social networks can help MTFs alleviate these problems. This article explores how minority MTFs, specifically in an urban environment, develop supportive social networks defined by their gender and sexual identities. Using principles of community-based participatory research (CBPR), 20 African American and Latina MTFs were recruited at a community-based health care clinic. Their ages ranged from 18 to 53. Data were coded and analyzed following standard procedure for content analysis. The qualitative interviews revealed that participants formed their gender and sexual identities over time, developed gender-focused social networks based in the clinic from which they receive services, and engaged in social capital building and political action. Implications for using CBPR in research with MTFs are discussed.  相似文献   
62.
Abstract

Interviews with the wives of forcible rapists and incest offenders at Atascadero State Hospital indicated that, among other things, the wives were more highly educated than their husbands. The women appeared to gain considerable satisfaction from the offenses of their husbands, perhaps because it put them in the role of martyrs, a role that may have been originally involved in their marriages to persons “inferior” to themselves. The wives, despite obvious cues, reported being surprised at their husbands' offenses, and not one indicated that her marriage had suffered as a consequence of her husband's behavior. The study concludes that, for this sample, rape and incest by the husbands served as a particular useful lever by which wives can further build positions of moral and social dominance.  相似文献   
63.
64.
We consider an extended family of asymmetric univariate distributions generated using a symmetric density, f, and the cumulative distribution function, G, of a symmetric distribution, which depends on two real-valued parameters λ and β and is such that when β = 0 it includes the entire class of distributions with densities of the form g(z | λ) = 2 Gz) f(z). A key element in the construction of random variables distributed according to the family is that they can be represented stochastically as the product of two random variables. From this representation we can readily derive theoretical properties, easy-to-implement simulation schemes, as well as extensions to the multivariate case and an explicit procedure for obtaining the moments. We give special attention to the extended skew-exponential power distribution. We derive its information matrix in order to obtain the asymptotic covariance matrix of the maximum likelihood estimators. Finally, an application to a real data set is reported, which shows that the extended skew-exponential power model can provide a better fit than the skew-exponential power distribution.  相似文献   
65.
Spearman's rank correlation coefficient is not entirely suitable for measuring the correlation between two rankings in some applications because it treats all ranks equally. In 2000, Blest proposed an alternative measure of correlation that gives more importance to higher ranks but has some drawbacks. This paper proposes a weighted rank measure of correlation that weights the distance between two ranks using a linear function of those ranks, giving more importance to higher ranks than lower ones. It analyses its distribution and provides a table of critical values to test whether a given value of the coefficient is significantly different from zero. The paper also summarizes a number of applications for which the new measure is more suitable than Spearman's.  相似文献   
66.
    
In the days following the collapse of the World Trade Center (WTC) towers on September 11, 2001 (9/11), the U.S. Environmental Protection Agency (EPA) initiated numerous air monitoring activities to better understand the ongoing impact of emissions from that disaster. Using these data, EPA conducted an inhalation exposure and human health risk assessment to the general population. This assessment does not address exposures and potential impacts that could have occurred to rescue workers, firefighters, and other site workers, nor does it address exposures that could have occurred in the indoor environment. Contaminants evaluated include particulate matter (PM), metals, polychlorinated biphenyls, dioxins, asbestos, volatile organic compounds, particle-bound polycyclic aromatic hydrocarbons, silica, and synthetic vitreous fibers (SVFs). This evaluation yielded three principal findings. (1) Persons exposed to extremely high levels of ambient PM and its components, SVFs, and other contaminants during the collapse of the WTC towers, and for several hours afterward, were likely to be at risk for acute and potentially chronic respiratory effects. (2) Available data suggest that contaminant concentrations within and near ground zero (GZ) remained significantly elevated above background levels for a few days after 9/11. Because only limited data on these critical few days were available, exposures and potential health impacts could not be evaluated with certainty for this time period. (3) Except for inhalation exposures that may have occurred on 9/11 and a few days afterward, the ambient air concentration data suggest that persons in the general population were unlikely to suffer short-term or long-term adverse health effects caused by inhalation exposures. While this analysis by EPA evaluated the potential for health impacts based on measured air concentrations, epidemiological studies conducted by organizations other than EPA have attempted to identify actual impacts. Such studies have identified respiratory effects in worker and general populations, and developmental effects in newborns whose mothers were near GZ on 9/11 or shortly thereafter. While researchers are not able to identify specific times and even exactly which contaminants are the cause of these effects, they have nonetheless concluded that exposure to WTC contaminants (and/or maternal stress, in the case of developmental effects) resulted in these effects, and have identified the time period including 9/11 itself and the days and few weeks afterward as a period of most concern based on high concentrations of key pollutants in the air and dust.  相似文献   
67.
68.
Although the elderly are the fastest growing of all age groups in developed countries, their migration remains little studied. Elderly migration differs in several fundamental ways from that of other age groups, but many of the data collection and analysis procedures, as well as basic concepts used in censuses, have been developed with the working population in mind and are of limited utility in studying elderly migration. This article discusses some of the problems using census data to identify movers among the elderly population, and to analyze the characteristics of movers and the causes of migration. The author concludes that it is clear that what is needed with respect to census data on elderly migration is not necessarily new questions to be included. Instead, more appropriate decisions need to be made at the stages of deciding what variables to code and what categories are to be included. In addition, at the stage of determining tabulation programs there needs to be greater sensitivity to finer age breakdowns among elderly migrants and to the selection of cross-tabulation variables which are more relevant to issues and problems of the aged. Hugo suggests that an authoritative agency convene a working group to establish guidelines which address the following issues. 1) What are appropriate age breakdowns? 2) What are appropriate variables for detailed cross-tabulations? 3) Exactly what is an appropriate form for migration data to be prepared for multi-regional analysis? 4) What is the most appropriate way of formatting public use sample tapes to make analyses for assisting in the study of elderly migration? 5) How should the institutional population among the aged be dealt with? Another recommendation which arises out of the issues raised here is that, analysts should give a clear indication of what movers are actually missed by census data and which types of movers are included. Awareness of the limitations of particular data sources is of critical significance to meaningful interpretation of results if one is seeking a better understanding of the causes and consequences of important social phenomena.  相似文献   
69.
ABSTRACT

Empowerment is a concept widely used in several policy documents and is presented, in social work and social care professional universes, as an operative process to reduce vulnerability and to increase the power, or capabilities, of individuals and groups to make choices and to transform these into actions and results. However, to move beyond rhetoric and paternalistic practices, we need to understand what empowerment really means and implies in different contexts, and especially, how to evaluate what has changed (outcomes) or is changing (processes), both on an individual and a collective level.  相似文献   
70.
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