全文获取类型
收费全文 | 99篇 |
免费 | 3篇 |
专业分类
管理学 | 8篇 |
人口学 | 7篇 |
丛书文集 | 1篇 |
理论方法论 | 8篇 |
综合类 | 9篇 |
社会学 | 50篇 |
统计学 | 19篇 |
出版年
2021年 | 1篇 |
2020年 | 3篇 |
2017年 | 2篇 |
2015年 | 2篇 |
2014年 | 6篇 |
2013年 | 10篇 |
2012年 | 6篇 |
2011年 | 9篇 |
2010年 | 6篇 |
2009年 | 5篇 |
2008年 | 1篇 |
2007年 | 6篇 |
2006年 | 5篇 |
2005年 | 2篇 |
2003年 | 3篇 |
2002年 | 9篇 |
1997年 | 1篇 |
1995年 | 6篇 |
1991年 | 2篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1983年 | 3篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1968年 | 1篇 |
1965年 | 1篇 |
1946年 | 1篇 |
1945年 | 1篇 |
排序方式: 共有102条查询结果,搜索用时 15 毫秒
11.
Louisa Degenhardt Carolyn Day Elizabeth Conroy Stuart Gilmour 《Journal of sex research》2013,50(2):107-114
We examined potential links between cocaine use and street‐based sex work in New South Wales, Australia, following reports of increased cocaine use among injection drug users (IDU). Police data on prostitution and possession/use of cocaine was analysed using time series analysis. Interviews with key informants and IDU were also conducted, and data on cocaine use from ongoing monitoring systems targeted at IDU were analyzed. There was a clear increase in cocaine use among IDU which occurred in 2001. This occurred at the same time as an increase in prostitution offenses. Qualitative data suggested a greater number of primary heroin users were engaging in street‐based sex work, which was driven in part by the increases in cocaine use among this group. Subsequent reductions in cocaine availability led to decreased cocaine use and possession offenses, along with reductions in prostitution offenses. 相似文献
12.
Many firms are considering CIM as a means of reducing costs and increasing quality. Sometimes, however, a major problem in this kind of project seems to be the high investments involved. In this paper a methodology for developing a low-cost CIM application is presented. The proposed methodology was successfully experimented in a small chemical unit of one of the leading producers of nylon in the world. The paper reports on the design and implementation of the computer-integrated manufacturing and the associated costs and benefits. 相似文献
13.
NING DE CONINCK‐SMITH 《Journal of historical sociology》2008,21(4):513-534
Cases of sexual misconduct in Danish state schools became the objects of attention in the years following the turn of the 20th Century. An analysis of 85 cases where teachers were accused of sexual misconduct towards their students reveals that the period from 1900 to 1970 present a set of changes in the attitudes to and management of intergenerational sexuality. Throughout these years there existed three ambivalent features relating to the child and its sexuality, to the pros and cons of reporting the case, and to the behaviour of the masculine teacher at a time of changing pedagogical ideals. 相似文献
14.
Michael J. Conroy Juan Carlos Senar Jordi Domènech 《Journal of applied statistics》2002,29(1-4):125-142
We developed models for the analysis of recapture data for 2678 serins ( Serinus serinus ) ringed in north-eastern Spain since 1985. We investigated several time- and individual-specific factors as potential predictors of overall mortality and dispersal patterns, and of gender and age differences in these patterns. Time-specific covariates included minimum daily temperature, days below freezing, and abundance of a strong competitor, siskins ( Carduelis spinus ) during winter, and maximum temperature and rainfall during summer. Individual covariates included body mass (i.e. body condition), and wing length (i.e. flying ability), and interactions between body mass and environmental factors. We found little support of a predictive relationship between environmental factors and survival, but good evidence of relationships between body mass and survival, especially for juveniles. Juvenile survival appears to vary in a curvilinear manner with increasing mass, suggesting that there may exist an optimal mass beyond which increases are detrimental. The mass-survival relationship does seem to be influenced by at least one environmental factor, namely the abundance of wintering siskins. When siskins are abundant, increases in body mass appear to relate strongly to increasing survival. When siskin numbers are average or low the relationship is largely reversed, suggesting that the presence of strong competition mitigates the otherwise largely negative aspects of greater body mass. Wing length in juveniles also appears to be related positively to survival, perhaps largely due to the influence of a few unusually large juveniles with adult-like survival. Further work is needed to test these relationships, ideally under experimentation. 相似文献
15.
THE MARKET FOR MOTION PICTURES: RANK, REVENUE, AND SURVIVAL 总被引:12,自引:0,他引:12
Every motion picture is an innovation that competes for theater screens and audiences during its brief life against a changing array of imperfect substitutes. We analyze a large sample of motion pictures as an evolving rank tournament of survival and death. The results indicate that the failure rate of motion pictures is time-dependent and survival time is strongly related to the number of initial bookings. Weekly box office revenue is highly convex in rank, which is consistent with Rosen's superstar phenomenon. Our results have implications for motion picture licensing arrangements, which have been severely restricted by U.S. court decisions. 相似文献
16.
Michael J. Conroy Juan Carlos Senar Jordi Dom nech 《Journal of applied statistics》2002,29(1):125-142
We developed models for the analysis of recapture data for 2678 serins ( Serinus serinus ) ringed in north-eastern Spain since 1985. We investigated several time- and individual-specific factors as potential predictors of overall mortality and dispersal patterns, and of gender and age differences in these patterns. Time-specific covariates included minimum daily temperature, days below freezing, and abundance of a strong competitor, siskins ( Carduelis spinus ) during winter, and maximum temperature and rainfall during summer. Individual covariates included body mass (i.e. body condition), and wing length (i.e. flying ability), and interactions between body mass and environmental factors. We found little support of a predictive relationship between environmental factors and survival, but good evidence of relationships between body mass and survival, especially for juveniles. Juvenile survival appears to vary in a curvilinear manner with increasing mass, suggesting that there may exist an optimal mass beyond which increases are detrimental. The mass-survival relationship does seem to be influenced by at least one environmental factor, namely the abundance of wintering siskins. When siskins are abundant, increases in body mass appear to relate strongly to increasing survival. When siskin numbers are average or low the relationship is largely reversed, suggesting that the presence of strong competition mitigates the otherwise largely negative aspects of greater body mass. Wing length in juveniles also appears to be related positively to survival, perhaps largely due to the influence of a few unusually large juveniles with adult-like survival. Further work is needed to test these relationships, ideally under experimentation. 相似文献
17.
LOUIS DE ALESSI 《Economic inquiry》1975,13(4):526-538
Differences in the property rights which distinguish government-owned and privately-owned, government-regulated business firms imply that government-owned electric utilities sell wholesale electric power at lower prices and buy it at higher prices than similarly-situated private firms. The hypotheses were tested using cross-section data. The results are generally favorable and suggest that the approach is fruitful. 相似文献
18.
Antonio ALOISI Valerio DE STEFANO 《International labour review / International Labour Office》2020,159(1):47-69
Digital transformation and the reorganization of the firm have given rise to new forms of work that diverge significantly from the standard employment relationship. Advocates of digital disruption suggest that the existing legal framework cannot accommodate “innovative” working templates and business models. This article, however, argues that labour regulation can continue to facilitate innovation, presenting the employment relationship as a flexible instrument, and standard forms of employment as the means of achieving efficiencies and cost advantages. First, they allow for the full exercise of managerial prerogative and attendant internal flexibility in workforce deployment, and, second, they constitute an effective device to deliver training and develop skills. 相似文献
19.
In this article we explore the links between return migration, belonging and transnationalism among migrants who returned from the Netherlands to northeast Morocco. While transnationalism is commonly discussed from the perspective of a receiving country, this study shows that transnationalism also plays a vital role in reconstructing post‐return belonging. Return migration is not simply a matter of ‘going home’, as feelings of belonging need to be renegotiated upon return. While returnees generally feel a strong need to maintain various transnational practices, the meanings they attach to these practices depend on motivations for return, gender and age. For former (male) labour migrants, transnational practices are essential for establishing post‐return belonging, whereas such practices are less important for their spouses. Those who returned as children generally feel uprooted, notwithstanding the transnational practices they maintain. The amount of agency migrants are able to exert in the return decision‐making process is a key factor in determining the extent to which returnees can create a post‐return transnational sense of home. 相似文献
20.
Abstract. In this paper, two non‐parametric estimators are proposed for estimating the components of an additive quantile regression model. The first estimator is a computationally convenient approach which can be viewed as a more viable alternative to existing kernel‐based approaches. The second estimator involves sequential fitting by univariate local polynomial quantile regressions for each additive component with the other additive components replaced by the corresponding estimates from the first estimator. The purpose of the extra local averaging is to reduce the variance of the first estimator. We show that the second estimator achieves oracle efficiency in the sense that each estimated additive component has the same variance as in the case when all other additive components were known. Asymptotic properties are derived for both estimators under dependent processes that are strictly stationary and absolutely regular. We also provide a demonstrative empirical application of additive quantile models to ambulance travel times. 相似文献