全文获取类型
收费全文 | 3095篇 |
免费 | 793篇 |
专业分类
管理学 | 777篇 |
民族学 | 9篇 |
人口学 | 83篇 |
丛书文集 | 5篇 |
理论方法论 | 653篇 |
综合类 | 4篇 |
社会学 | 2002篇 |
统计学 | 355篇 |
出版年
2022年 | 4篇 |
2021年 | 69篇 |
2020年 | 140篇 |
2019年 | 309篇 |
2018年 | 132篇 |
2017年 | 216篇 |
2016年 | 267篇 |
2015年 | 269篇 |
2014年 | 240篇 |
2013年 | 425篇 |
2012年 | 203篇 |
2011年 | 193篇 |
2010年 | 169篇 |
2009年 | 133篇 |
2008年 | 162篇 |
2007年 | 106篇 |
2006年 | 125篇 |
2005年 | 96篇 |
2004年 | 103篇 |
2003年 | 89篇 |
2002年 | 65篇 |
2001年 | 71篇 |
2000年 | 62篇 |
1999年 | 22篇 |
1998年 | 10篇 |
1997年 | 7篇 |
1996年 | 10篇 |
1995年 | 5篇 |
1994年 | 12篇 |
1993年 | 14篇 |
1992年 | 6篇 |
1991年 | 10篇 |
1990年 | 4篇 |
1989年 | 9篇 |
1988年 | 12篇 |
1987年 | 6篇 |
1986年 | 5篇 |
1985年 | 11篇 |
1984年 | 4篇 |
1983年 | 8篇 |
1982年 | 7篇 |
1980年 | 6篇 |
1979年 | 7篇 |
1978年 | 7篇 |
1977年 | 8篇 |
1976年 | 11篇 |
1975年 | 8篇 |
1974年 | 6篇 |
1973年 | 8篇 |
1970年 | 4篇 |
排序方式: 共有3888条查询结果,搜索用时 18 毫秒
951.
Hank C. Jenkins‐Smith Carol L. Silva Matthew C. Nowlin Grant deLozier 《Risk analysis》2011,31(4):629-644
Nuclear facilities have long been seen as the top of the list of locally unwanted land uses (LULUs), with nuclear waste repositories generating the greatest opposition. Focusing on the case of the Waste Isolation Pilot Plant (WIPP) in southern New Mexico, we test competing hypotheses concerning the sources of opposition and support for siting the facility, including demographics, proximity, political ideology, and partisanship, and the unfolding policy process over time. This study tracks the changes of risk perception and acceptance of WIPP over a decade, using measures taken from 35 statewide surveys of New Mexico citizens spanning an 11‐year period from fall 1990 to summer 2001. This time span includes periods before and after WIPP became operational. We find that acceptance of WIPP is greater among those whose residences are closest to the WIPP facility. Surprisingly, and contrary to expectations drawn from the broader literature, acceptance is also greater among those who live closest to the nuclear waste transportation route. We also find that ideology, partisanship, government approval, and broader environmental concerns influence support for WIPP acceptance. Finally, the sequence of procedural steps taken toward formal approval of WIPP by government agencies proved to be important to gaining public acceptance, the most significant being the opening of the WIPP facility itself. 相似文献
952.
953.
There is considerable interest among European politicians and policymakers in the factors influencing the destination preferences of refugees and other migrants. Drawing on in‐depth qualitative interviews with more than 250 Syrians, Eritreans and Nigerians, this article examines the destination preferences of those crossing the Mediterranean in 2015 and the extent to which they were aware of, and/or influenced by, policies intended to control and manage their arrival. Our findings question the extent to which deterrence policies have their intended or assumed effects. Preferred destinations are rarely identified solely, or even primarily, on the basis of migration policies devised by different governments with the explicit aim of reducing the number of arrivals. Rather they reflect the “coming together” of a wide range of factors, including access to protection and family reunification, the availability/accuracy of information, the overall economic environment and social networks. Moreover perceptions of migration policies may be more significant than their content as the implications are often not known or misunderstood. 相似文献
954.
We examine the theoretical as well as quantitative interrelations between endogenous business cycles, increasing returns to product variety and sector‐specific productive externalities within a two‐sector real business cycle model. In a calibrated version of our benchmark closed‐economy setting, the threshold level of investment externalities needed for equilibrium indeterminacy is found to be monotonically increasing in the degree of market competitiveness. We also study the model's local stability properties (i) when the parameters that govern the level of intermediate‐good producers' market power and the strength of variety effects are disentangled; and (ii) in the context of a small open economy. (JEL E30, E32, O41) 相似文献
955.
Does multicultural education affect bachelor of social work students' attitudes? The Taiwanese case of female Southeast Asian marriage immigration 下载免费PDF全文
Shou‐Lu Lee 《Asian Social Work and Policy Review》2017,11(2):132-142
In the past two decades, intra‐Asia cross‐border marriage immigration has become a significant phenomenon. This study collected questionnaire data from Bachelor of Social Work students (n = 1,232) in Taiwan to explore the influences of multicultural education, intergroup contact experience, and demographic characteristics on students' attitudes toward female Southeast Asian marriage migrants. Regression analysis revealed that students' attitudes are improved by direct contact with female Southeast Asian marriage migrants but are not correlated with students' demographic characteristics. Although pre‐college multicultural education improves students' attitudes, college‐level multicultural education adversely affects the attitudes of students who perform poorly in multicultural courses. These findings have valuable implications for social work educators. 相似文献
956.
A Collaborative Approach to Infant Research: Promoting Reproducibility,Best Practices,and Theory‐Building 下载免费PDF全文
Michael C. Frank Elika Bergelson Christina Bergmann Alejandrina Cristia Caroline Floccia Judit Gervain J. Kiley Hamlin Erin E. Hannon Melissa Kline Claartje Levelt Casey Lew‐Williams Thierry Nazzi Robin Panneton Hugh Rabagliati Melanie Soderstrom Jessica Sullivan Sandra Waxman Daniel Yurovsky 《Infancy》2017,22(4):421-435
The ideal of scientific progress is that we accumulate measurements and integrate these into theory, but recent discussion of replicability issues has cast doubt on whether psychological research conforms to this model. Developmental research—especially with infant participants—also has discipline‐specific replicability challenges, including small samples and limited measurement methods. Inspired by collaborative replication efforts in cognitive and social psychology, we describe a proposal for assessing and promoting replicability in infancy research: large‐scale, multi‐laboratory replication efforts aiming for a more precise understanding of key developmental phenomena. The ManyBabies project, our instantiation of this proposal, will not only help us estimate how robust and replicable these phenomena are, but also gain new theoretical insights into how they vary across ages, linguistic communities, and measurement methods. This project has the potential for a variety of positive outcomes, including less‐biased estimates of theoretically important effects, estimates of variability that can be used for later study planning, and a series of best‐practices blueprints for future infancy research. 相似文献
957.
This study examined effects of local economic conditions on individuals' attitudes toward midpregnancy marriages using an experimental vignette method. Adults (N = 460) were each shown two vignettes about a hypothetical couple expecting a baby; within each vignette pair, vignettes randomly varied as to whether the couple lived in a community that had recently experienced job losses or had stable employment. Respondents indicated if the couple should and will get married before the baby's birth. Results showed that worse local economic conditions led people to believe that marriage would be less common. Among more socioeconomically disadvantaged respondents, if the hypothetical couple lived in a community with job loss, fewer respondents also thought that the couple should marry. In contrast, among more socioeconomically advantaged respondents, slightly more respondents thought that the couple should marry. When economic conditions worsen, low‐socioeconomic‐status individuals may believe that financial prerequisites for marriage become harder to meet. 相似文献
958.
David Egilman Wes Wallace Cassandra Stubbs Fernando Mora‐Corrasco 《Accountability in research》2013,20(1-2):63-103
From 1960 through 1972, Dr. Eugene Saenger oversaw the experimental administration of lethal and near‐lethal doses of radiation to hospital patients at the University of Cincinnati. These experiments were funded by the US Department of Defense, and were specifically designed to acquire military information on the effects of radiation in combat soldiers. Although Saenger's research was terminated after public exposure in 1971, a full and detailed account has not been available until now. The account provided by the President's Advisory Committee on Human Radiation Experiments (ACHRE) in their Final Report of 1995 was incomplete. Our account is based on a reanalysis of all the material available to ACHRE, including highly critical peer reviews by U.C. faculty members. We also present, for the first time, several case histories taken from the medical records of Dr. Saenger's subjects. 相似文献
959.
Marie‐Josée J. Mangen Michael B. Batz Annemarie Käsbohrer Tine Hald J. Glenn Morris Jr. Michael Taylor Arie H. Havelaar 《Risk analysis》2010,30(5):782-797
To address the persistent problems of foodborne and zoonotic disease, public health officials worldwide face difficult choices about how to best allocate limited resources and target interventions to reduce morbidity and mortality. Data‐driven approaches to informing these decisions have been developed in a number of countries. Integrated comparative frameworks generally share three methodological components: estimating incidence of acute illnesses, chronic sequelae, and mortality; attributing pathogen‐specific illnesses to foods; and calculating integrated measures of disease burden such as cost of illness, willingness to pay, and health‐adjusted life years (HALYs). To discuss the similarities and differences in these approaches, to seek consensus on principles, and to improve international collaboration, the E.U. MED‐VET‐NET and the U.S.‐based Food Safety Research Consortium organized an international conference convened in Berlin, Germany, on July 19–21, 2006. This article draws in part on the deliberations of the conference and discusses general principles, data needs, methodological issues and challenges, and future research needs pertinent to objective data‐driven analyses and their potential use for priority setting of foodborne and zoonotic pathogens in public health policy. 相似文献
960.