全文获取类型
收费全文 | 339篇 |
免费 | 11篇 |
专业分类
管理学 | 48篇 |
人口学 | 27篇 |
丛书文集 | 1篇 |
理论方法论 | 38篇 |
综合类 | 2篇 |
社会学 | 186篇 |
统计学 | 48篇 |
出版年
2023年 | 5篇 |
2022年 | 2篇 |
2021年 | 1篇 |
2020年 | 5篇 |
2019年 | 10篇 |
2018年 | 13篇 |
2017年 | 11篇 |
2016年 | 12篇 |
2015年 | 5篇 |
2014年 | 12篇 |
2013年 | 65篇 |
2012年 | 20篇 |
2011年 | 13篇 |
2010年 | 13篇 |
2009年 | 9篇 |
2008年 | 5篇 |
2007年 | 11篇 |
2006年 | 14篇 |
2005年 | 9篇 |
2004年 | 5篇 |
2003年 | 10篇 |
2002年 | 9篇 |
2001年 | 3篇 |
2000年 | 5篇 |
1999年 | 8篇 |
1998年 | 5篇 |
1997年 | 4篇 |
1996年 | 4篇 |
1995年 | 9篇 |
1994年 | 6篇 |
1993年 | 7篇 |
1992年 | 5篇 |
1991年 | 2篇 |
1990年 | 5篇 |
1989年 | 4篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1968年 | 1篇 |
1964年 | 1篇 |
排序方式: 共有350条查询结果,搜索用时 859 毫秒
131.
Termination of parental rights (TPR) is one of the most important decisions made by the legal system. Due to the importance of the TPR legal process, it is essential to understand the risk and protective factors that influence TPR decisions and under which conditions these factors are most influential. This commentary begins with a brief review of the literature regarding TPR. Subsequently, the Ben-David article is reviewed, highlighting the strengths and challenges that emerge from the study. Future directions are then discussed, with a focus on several recent articles that should guide researchers in the TPR field. Finally, clinical implications for social service providers and agencies are explored, with particular attention to how the TPR literature can guide best practices in clinical work. 相似文献
132.
133.
Ilan H. Meyer Lindsay Rossano James M. Ellis Judith Bradford 《Journal of sex research》2013,50(2):139-144
Lesbian health research has most often relied on nonprobability samples that are biased and restrict generalizability. Random sampling could reduce bias, but requires development of a method for fast and reliable screening of a large number of women. We tested the feasibility of using a brief telephone interview to assess sexual attraction, behavior, and identity. Using Random Digit Dialing in a neighborhood of Boston with a high density of lesbian residents, we interviewed 202 women aged 18 to 59. Of the respondents, 33% reported some sexual attraction to other women, 20% reported sex with women since age 18, and 14% identified as a lesbian. The high level of cooperation with the study among eligible women (94%) and the high proportion of women who disclosed homosexual attraction, behavior, or identity show that it is feasible to use a brief screening questionnaire about sexuality of women over the telephone even without building special rapport with the respondents. 相似文献
134.
135.
This article examines citizens' support for democracy across forty-six nations. The authors use multilevel modeling and data from the World Values Survey and other sources to assess individuals' support for democracy in light of broader country-level factors as well as individual proclivities toward religion, politics and community. Findings suggest that the predominance of a particular religion in a nation does not influence individuals' views in and of itself. It does, however, matter when individuals' religious beliefs and practices as well as their civic engagement are taken into account. These factors, even in predominantly Muslim countries, appear to foster rather than hinder positive views towards democracy. But individuals seeking a prominent role for religion in government are likely to be substantially less supportive of democracy. Such antidemocratic attitudes appear countered in a citizenry where many are engaged in conventional political activities, have attained higher social statuses and reside in highly globalized states with Protestant or Muslim majorities and without a Communist legacy. 相似文献
136.
Meyer Michael Rameder Paul 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2022,33(1):18-32
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - Volunteering in civil society organizations (CSOs) is sometimes idealized as welcoming arena for everybody. Prior... 相似文献
137.
Andrew G. Meyer 《Economic inquiry》2022,60(1):64-86
I show that climate skepticism increases with negative economic shocks and that the effects are concentrated among individuals in the labor force. I primarily employ a panel of US individuals in the period following the Great Recession, but also find consistent results with an alternative instrumental variables strategy. Among labor force participants, a one-percentage point increase in the local unemployment rate leads to a three to five percentage point decrease in the probability of believing climate change is real and requires action. I conclude that support for climate change policies could depend on labor market conditions. 相似文献
138.
Sebastian Abshoff Peter Kling Christine Markarian Friedhelm Meyer auf der Heide Peter Pietrzyk 《Journal of Combinatorial Optimization》2016,32(4):1197-1216
We consider online optimization problems in which certain goods have to be acquired in order to provide a service or infrastructure. Classically, decisions for such problems are considered as final: one buys the goods. However, in many real world applications, there is a shift away from the idea of buying goods. Instead, leasing is often a more flexible and lucrative business model. Research has realized this shift and recently initiated the theoretical study of leasing models (Anthony and Gupta in Proceedings of the integer programming and combinatorial optimization: 12th International IPCO Conference, Ithaca, NY, USA, June 25–27, 2007; Meyerson in Proceedings of the 46th Annual IEEE Symposium on Foundations of Computer Science (FOCS 2005), 23–25 Oct 2005, Pittsburgh, PA, USA, 2005; Nagarajan and Williamson in Discret Optim 10(4):361–370, 2013) We extend this line of work and suggest a more systematic study of leasing aspects for a class of online optimization problems. We provide two major technical results. We introduce the leasing variant of online set multicover and give an \(O\left( \log (mK)\log n\right) \)-competitive algorithm (with n, m, and K being the number of elements, sets, and leases, respectively). Our results also imply improvements for the non-leasing variant of online set cover. Moreover, we extend results for the leasing variant of online facility location. Nagarajan and Williamson (Discret Optim 10(4):361–370, 2013) gave an \(O\left( K\log n\right) \)-competitive algorithm for this problem (with n and K being the number of clients and leases, respectively). We remove the dependency on n (and, thereby, on time). In general, this leads to a bound of \(O\left( l_{\text {max}} \log l_{\text {max}} \right) \) (with the maximal lease length \(l_{\text {max}} \)). For many natural problem instances, the bound improves to \(O\left( K^2\right) \). 相似文献
139.
Many decisions made by consumers are intertemporal. Life cycle cost (LCC) conditions represent a specific type of intertemporal decisions, typically referring to items involving two cost components: present purchase price and future maintenance costs. This paper presents a conceptual framework for analyzing consumer LCC decision making. Within this framework the notion of choice efficiency is highlighted. The main contribution of the study is the direct estimation of consumers’ choice efficiency, as compared to previous studies that estimate only consumers’ implicit discount rates. Effects of situational and personal variables on efficiency of choice are estimated by means of a series of manipulated choice settings. The main empirical findings show situational effects of monetary size, type of object and time horizon. Additional findings show the effect of personal variables such as gender, marital status and education. 相似文献
140.
Downside risk increases have previously been characterized as changes preferred by all decision makers u(x) with u????(x) > 0. For risk averse decision makers, u????(x) > 0 also defines prudence. This paper finds that downside risk increases can also be characterized as changes preferred by all decision makers displaying decreasing absolute risk aversion (DARA) since those changes involve random variables that have equal means. Building on these findings, the paper proposes using ??more decreasingly absolute risk averse?? or ??more prudent?? as alternative definitions of increased downside risk aversion. These alternative definitions generate a transitive ordering, while the existing definition based on a transformation function with a positive third derivative does not. Other properties of the new definitions of increased downside risk aversion are also presented. 相似文献