全文获取类型
收费全文 | 11905篇 |
免费 | 266篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1473篇 |
民族学 | 54篇 |
人才学 | 3篇 |
人口学 | 1089篇 |
丛书文集 | 57篇 |
理论方法论 | 1026篇 |
综合类 | 103篇 |
社会学 | 5635篇 |
统计学 | 2732篇 |
出版年
2022年 | 66篇 |
2021年 | 64篇 |
2020年 | 174篇 |
2019年 | 218篇 |
2018年 | 324篇 |
2017年 | 433篇 |
2016年 | 278篇 |
2015年 | 235篇 |
2014年 | 287篇 |
2013年 | 2208篇 |
2012年 | 417篇 |
2011年 | 316篇 |
2010年 | 289篇 |
2009年 | 211篇 |
2008年 | 253篇 |
2007年 | 255篇 |
2006年 | 261篇 |
2005年 | 246篇 |
2004年 | 194篇 |
2003年 | 207篇 |
2002年 | 216篇 |
2001年 | 321篇 |
2000年 | 288篇 |
1999年 | 269篇 |
1998年 | 204篇 |
1997年 | 169篇 |
1996年 | 219篇 |
1995年 | 189篇 |
1994年 | 199篇 |
1993年 | 168篇 |
1992年 | 201篇 |
1991年 | 213篇 |
1990年 | 196篇 |
1989年 | 170篇 |
1988年 | 193篇 |
1987年 | 179篇 |
1986年 | 141篇 |
1985年 | 176篇 |
1984年 | 180篇 |
1983年 | 156篇 |
1982年 | 122篇 |
1981年 | 97篇 |
1980年 | 97篇 |
1979年 | 121篇 |
1978年 | 93篇 |
1977年 | 81篇 |
1976年 | 57篇 |
1975年 | 63篇 |
1974年 | 67篇 |
1973年 | 60篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
271.
Sharon S. Oselin 《Sociological Forum》2016,31(1):203-222
Violence among inner‐city men is a pressing social concern, and the central focus of much academic research. Many frame it as a phenomenon that certain men perpetuate—those who inhabit disadvantaged, impoverished communities—and argue it is linked to performances of “street” masculinity. In this article, I examine male street‐based sex workers’ willingness to become embroiled in violent exchanges. In a departure from theoretical predictions, my findings reveal these men expend considerable effort to remain nonviolent with others immersed in the sex trade, a decision based upon their desire for the acquisition of capital as well as their calculation of risks. In doing so, they construct and perform a nuanced version of masculinity, which I call pacifist masculinity. Few studies analyze peaceful and conciliatory interactions among men in these contexts, an absence that only serves to reify assumptions about rampant hostility and aggression. I draw on interviews with 19 men involved in street prostitution in Chicago in 2012. This article contributes to a clearer understanding of male–male violence in high‐risk environments, examines the prominent factors that inform decisions to assault others, and explores how such actions challenge hegemonic masculinity. 相似文献
272.
Outlier detection algorithms are intimately connected with robust statistics that down‐weight some observations to zero. We define a number of outlier detection algorithms related to the Huber‐skip and least trimmed squares estimators, including the one‐step Huber‐skip estimator and the forward search. Next, we review a recently developed asymptotic theory of these. Finally, we analyse the gauge, the fraction of wrongly detected outliers, for a number of outlier detection algorithms and establish an asymptotic normal and a Poisson theory for the gauge. 相似文献
273.
Application of a QMRA Framework to Inform Selection of Drinking Water Interventions in the Developing Context 下载免费PDF全文
S. R. Petterson 《Risk analysis》2016,36(2):203-214
The aim of this study was to develop a modified quantitative microbial risk assessment (QMRA) framework that could be applied as a decision support tool to choose between alternative drinking water interventions in the developing context. The impact of different household water treatment (HWT) interventions on the overall incidence of diarrheal disease and disability adjusted life years (DALYs) was estimated, without relying on source water pathogen concentration as the starting point for the analysis. A framework was developed and a software tool constructed and then implemented for an illustrative case study for Nepal based on published scientific data. Coagulation combined with free chlorine disinfection provided the greatest estimated health gains in the short term; however, when long‐term compliance was incorporated into the calculations, the preferred intervention was porous ceramic filtration. The model demonstrates how the QMRA framework can be used to integrate evidence from different studies to inform management decisions, and in particular to prioritize the next best intervention with respect to estimated reduction in diarrheal incidence. This study only considered HWT interventions; it is recognized that a systematic consideration of sanitation, recreation, and drinking water pathways is important for effective management of waterborne transmission of pathogens, and the approach could be expanded to consider the broader water‐related context. 相似文献
274.
Hans Skott-Myhre Brad McDonald Kathleen S. G. Skott-Myhre 《Journal of Progressive Human Services》2017,28(3):164-178
In this article, we trace the rise of neoliberalism and its impacts on the historical role of human services within the academy and the community. We ask whether we can re-think and re-envision a 21st century academy rooted in the material actualities of daily living and connected in very real ways to the struggles of those Human Services was designed to serve. Finally, we propose that Human Services could have a significant role to play in developing new modes of value that could lead to new modes of thought and new avenues of praxis. 相似文献
275.
Michael Kirchler David Andersson Caroline Bonn Magnus Johannesson Erik Ø. Sørensen Matthias Stefan Gustav Tinghög Daniel Västfjäll 《Journal of Risk and Uncertainty》2017,54(1):37-59
We experimentally compare fast and slow decisions in a series of experiments on financial risk taking in three countries involving over 1700 subjects. To manipulate fast and slow decisions, subjects were randomly allocated to responding within 7 seconds (time pressure) or waiting for at least 7 or 20 seconds (time delay) before responding. To control for different effects of time pressure and time delay on measurement noise, we estimate separate parameters for noise and risk preferences within a random utility framework. We find that time pressure increases risk aversion for gains and risk taking for losses compared to time delay, implying that time pressure increases the reflection effect of Prospect Theory. The results for gains are weaker and less robust than the results for losses. We find no significant difference between time pressure and time delay for loss aversion (tested in only one of the experiments). Time delay also leads to less measurement noise than time pressure and unconstrained decisions, and appears to be an effective way of decreasing noise in experiments. 相似文献
276.
This qualitative content analysis of online documents compiled from the North American Animal Liberation Front (ALF), Earth Liberation Kollective (ELK) and Grassroots Ontario Animal Liberation (GOAL) network websites and Facebook pages explores how activism within the Radical Animal Liberation Movement (RALM) intersects with other social movements. While most literature to date traces the RALM’s (dis)junctures with other forms of social justice activism through analyses of their broad ideological assumptions, or the views of renowned RALM scholars, this research provides authentic insights into the voices of Canadian, American and Mexican activists as they are represented in documents they author themselves. Like activists in anarchistic, anti-capitalist, immigrant rights, Indigenous, prison abolition, prisoner support and radical feminist movements, those in the RALM critique capitalism, colonialism, hierarchy, racism, sexism, state power and the prison industrial complex. Our research calls into question the existing narratives that depict the RALM as an extremist, single-issue movement oblivious to all other forms of social inequality, injustice, marginalization and oppression. Rather, RALM activists are building alliances with other radical social movements to achieve the common goal of ending both human and animal suffering and exploitation. 相似文献
277.
Juan Fernández Sánchez 《Journal of nonparametric statistics》2014,26(1):129-140
In this paper, we characterise a family of bivariate copulas whose sections between the main diagonal and the border of the unit square are polynomial, generalising several families of copulas, including those with quadratic and cubic sections. We also study a measure of association and the tail dependence for this class, illustrating our results with several examples. 相似文献
278.
We propose new dynamic measures of uncertainty based on the notion of generalized dynamic entropy introduced in Di Crescenzo and Longobardi (2006). These can uniquely determine distribution functions in continuous and discrete cases, and the characterizations of some well-known distributions are provided. We also define some orderings and aging notions based on the generalized dynamic measures, and prove some of their properties, obtaining as corollaries results that have recently appeared in the literature. 相似文献
279.
Security of infrastructure is a major concern. Traditional security schedules are unable to provide omnipresent coverage; consequently, adversaries can exploit predictable vulnerabilities to their advantage. Randomized security schedules, which randomly deploy security measures, overcome these limitations, but public perceptions of such schedules have not been examined. In this experiment, participants were asked to make a choice between attending a venue that employed a traditional (i.e., search everyone) or a random (i.e., a probability of being searched) security schedule. The absolute probability of detecting contraband was manipulated (i.e., 1/10, 1/4, 1/2) but equivalent between the two schedule types. In general, participants were indifferent to either security schedule, regardless of the probability of detection. The randomized schedule was deemed more convenient, but the traditional schedule was considered fairer and safer. There were no differences between traditional and random schedule in terms of perceived effectiveness or deterrence. Policy implications for the implementation and utilization of randomized schedules are discussed. 相似文献
280.