全文获取类型
收费全文 | 380篇 |
免费 | 13篇 |
专业分类
管理学 | 63篇 |
民族学 | 3篇 |
人才学 | 2篇 |
人口学 | 21篇 |
理论方法论 | 33篇 |
综合类 | 2篇 |
社会学 | 173篇 |
统计学 | 96篇 |
出版年
2023年 | 3篇 |
2022年 | 3篇 |
2021年 | 3篇 |
2020年 | 14篇 |
2019年 | 10篇 |
2018年 | 15篇 |
2017年 | 11篇 |
2016年 | 11篇 |
2015年 | 10篇 |
2014年 | 11篇 |
2013年 | 73篇 |
2012年 | 11篇 |
2011年 | 11篇 |
2010年 | 6篇 |
2009年 | 10篇 |
2008年 | 6篇 |
2007年 | 9篇 |
2006年 | 9篇 |
2005年 | 5篇 |
2004年 | 11篇 |
2003年 | 4篇 |
2002年 | 9篇 |
2001年 | 7篇 |
2000年 | 4篇 |
1999年 | 8篇 |
1998年 | 3篇 |
1997年 | 8篇 |
1996年 | 7篇 |
1995年 | 7篇 |
1994年 | 7篇 |
1992年 | 3篇 |
1991年 | 3篇 |
1990年 | 8篇 |
1989年 | 5篇 |
1988年 | 3篇 |
1987年 | 4篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 10篇 |
1983年 | 6篇 |
1982年 | 5篇 |
1981年 | 6篇 |
1980年 | 2篇 |
1979年 | 4篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1975年 | 3篇 |
1974年 | 3篇 |
1973年 | 2篇 |
1963年 | 2篇 |
排序方式: 共有393条查询结果,搜索用时 31 毫秒
21.
H. Roy Kaplan Ph.D 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》1987,3(3):168-178
This paper is based on a study of 576 lottery winners from 12 states. Respondents to a mailed questionnaire included winners of sums ranging from $50,000 to millions. The data indicate that popular myths and stereotypes about winners were inaccurate. Specifically, winners came from various education and employment backgrounds and they were clustered in the higher income categories than the general population indicating that lotteries might not be as regressive as popularly believed. Winners were older than the general population and more often male (60 versus 40%). There was significant association between the amount a person won and his or her work behavior. Individuals with psychologically and financially rewarding jobs continued working regardless of the amount they won, while people who worked in low paying semi-skilled and unskilled jobs were far more likely to quit the labor force. Contrary to popular beliefs, winners did not engage in lavish spending sprees and instead gave large amounts of their winnings to their children and their churches. The most common expenditures were for houses, automobiles and trips. It was found that overall, winners were well-adjusterd, secure and generally happy from the experience.This study was funded by a grant from the Institute for Socioeconomic Studies in White Plains, New York. 相似文献
22.
23.
To serve Korean American families effectively, marriage and family therapists need to develop a level of cultural competence. This content analysis of the relevant treatment literature was conducted to discover the most common expert recommendations for family therapy with Asian Americans and to examine their application to Korean Americans. Eleven specific guidelines were generated: Assess support systems, assess immigration history establish professional credibility, provide role induction, facilitate "saving face," accept somatic complaints, be present/problem focused, be directive, respect family structure, be nonconfrontational, and provide positive reframes. Empirical support (clinical and nonclinical research) and conceptual support for each guideline are discussed, and conclusions are reached regarding culturally competent therapy with Korean American families. 相似文献
24.
Roy E. Albert Joellen Lewtas Stephen Nesnow Todd W. Thorslund Elizabeth Anderson 《Risk analysis》1983,3(2):101-117
An estimation of the human lung cancer “unit risk” from diesel engine particulate emissions has been made using a comparative potency approach. This approach involves evaluating the tumorigenic and mutagenic potencies of the particulates from four diesel and one gasoline engine in relation to other combustion and pyrolysis products (coke oven, roofing tar, and cigarette smoke) that cause lung cancer in humans. The unit cancer risk is predicated on the linear nonthreshold extrapolation model and is the individual lifetime excess lung cancer risk from continuous exposure to 1 μg carcinogen per m3 inhaled air. The human lung cancer unit risks obtained from the epidemiologic data for coke oven workers, roofing tar applicators, and cigarette smokers were, respectively, 9.3 × 10?4, 3.6 × 10?4, and 2.2 × 10?6 per μg particulate organics per m3 air. The comparative potencies of these three materials and the diesel and gasoline engine exhaust particulates (as organic extracts) were evaluated by in vivo tumorigenicity bioassays involving skin initiation and skin carcinogenicity in SENCAR mice and by the in vitro bioassays that proved suitable for this analysis: Ames Salmonella microsome bioassay, L5178Y mouse lymphoma cell mutagenesis bioassay, and sister chromatid exchange bioassay in Chinese hamster ovary cells. The relative potencies of the coke oven, roofing tar, and cigarette smoke emissions, as determined by the mouse skin initiation assay, were within a factor of 2 of those determined using the epidemiologic data. The relative potencies, from the in vitro bioassays as compared to the human data, were similar for coke oven and roofing tar, but for the cigarette smoke condensate the in vitro tests predicted a higher relative potency. The mouse skin initiation bioassay was used to determine the unit lung cancer risk for the most potent of the diesel emissions. Based on comparisons with coke oven, roofing tar, and cigarette smoke, the unit cancer risk averaged 4.4 × 10?4. The unit lung cancer risks for the other, less potent motor-vehicle emissions were determined from their comparative potencies relative to the most potent diesel using three in vitro bioassays. There was a high correlation between the in vitro and in vivo bioassays in their responses to the engine exhaust particulate extracts. The unit lung cancer risk per μg particulates per m3 for the automotive diesel and gasoline exhaust particulates ranged from 0.20 × 10?4 to 0.60 × 10?4; that for the heavy-duty diesel engine was 0.02 × 10?4. These unit risks provide the basis for a future assessment of human lung cancer risks when combined with human population exposure to automotive emissions. 相似文献
25.
26.
The Media and Genetically Modified Foods: Evidence in Support of Social Amplification of Risk 总被引:4,自引:0,他引:4
Empirical examinations of the "social amplification of risk" framework are rare, partly because of the difficulties in predicting when conditions likely to result in amplification effects will occur. This means that it is difficult to examine changes in risk perception that are contemporaneous with increases and/or decreases in social or media discussion of the risks associated with a particular risk event. However, the collection of attitude data before, during, and after the increased reporting of the risks of genetically modified food in the United Kingdom (spring 1999) has demonstrated that people's risk perceptions do increase and decrease in line with what might be expected upon examination of the amplification and attenuation mechanisms integral to the framework. Perceptions of benefit, however, appeared to be permanently depressed by negative reporting about genetically modified food. Trust in regulatory institutions with responsibility for protecting the public was not affected. It was concluded that the social amplification of risk framework is a useful framework for beginning to explain the potential impact on risk perceptions of a risk event, particularly if that risk event is presented to the public as a new hazard occurring in a crisis context. 相似文献
27.
28.
Roy F. Oman Sara K. Vesely Eleni Tolma Cheryl B. Aspy Sharon Rodine LaDonna Marshall 《Journal of research on adolescence》2007,17(4):743-766
This study investigated significant relationships between youth assets and youth alcohol, tobacco, and drug use that differ according to family structure (one- or two-parent households). Data were collected from a randomly sampled inner-city population (n=1,256 teenagers and 1,256 parents of the teenagers) using in-home, in-person interviews. Logistic regression analyses, stratifying by one- and two-parent household status, were conducted with nine youth assets as the independent variables and youth alcohol, tobacco, and drug use as the dependent variables. Results indicated that the associations between assets and risk behaviors varied depending upon whether the youth lived in one- or two-parent households. Continued research is warranted to further investigate associations among family structure, youth assets, and youth risk behaviors. 相似文献
29.
Damon Mitchell D. J. Angelone Richard Hirschman Roy S. Lilly Gordon C. Nagayama Hall 《Journal of sex research》2013,50(4):326-333
The purpose of this study was to examine the influence of peer modeling on sexually impositional behavior in the laboratory. Male participants with and without a self‐reported history of sexually aggressive behavior viewed video clips depicting nonaggressive and sexually aggressive behavior and then chose one of the clips to show to a female confederate. Half of the participants were first exposed to a male confederate who showed the sexually aggressive video clip to a female confederate. The other half of the participants were exposed to a male confederate who showed a nonaggressive video clip to a female confederate. Exposure to a male confederate who showed a sexually aggressive video clip to a female was associated with participants' choosing to engage in this same behavior. A self‐reported history of sexually aggressive behavior was also associated with participants' showing the sexually aggressive video clip in spite of believing the effect on the female viewer would be negative. 相似文献
30.