全文获取类型
收费全文 | 1279篇 |
免费 | 50篇 |
专业分类
管理学 | 136篇 |
民族学 | 8篇 |
人口学 | 118篇 |
丛书文集 | 11篇 |
理论方法论 | 142篇 |
综合类 | 7篇 |
社会学 | 783篇 |
统计学 | 124篇 |
出版年
2023年 | 13篇 |
2022年 | 9篇 |
2021年 | 13篇 |
2020年 | 27篇 |
2019年 | 21篇 |
2018年 | 37篇 |
2017年 | 66篇 |
2016年 | 50篇 |
2015年 | 24篇 |
2014年 | 40篇 |
2013年 | 199篇 |
2012年 | 56篇 |
2011年 | 59篇 |
2010年 | 44篇 |
2009年 | 40篇 |
2008年 | 54篇 |
2007年 | 49篇 |
2006年 | 58篇 |
2005年 | 43篇 |
2004年 | 49篇 |
2003年 | 41篇 |
2002年 | 38篇 |
2001年 | 22篇 |
2000年 | 19篇 |
1999年 | 22篇 |
1998年 | 17篇 |
1997年 | 19篇 |
1996年 | 17篇 |
1995年 | 14篇 |
1994年 | 11篇 |
1993年 | 10篇 |
1992年 | 11篇 |
1991年 | 14篇 |
1990年 | 5篇 |
1989年 | 12篇 |
1988年 | 9篇 |
1987年 | 12篇 |
1986年 | 7篇 |
1985年 | 7篇 |
1984年 | 9篇 |
1983年 | 10篇 |
1982年 | 8篇 |
1980年 | 6篇 |
1979年 | 6篇 |
1977年 | 4篇 |
1976年 | 3篇 |
1975年 | 3篇 |
1974年 | 5篇 |
1970年 | 3篇 |
1969年 | 3篇 |
排序方式: 共有1329条查询结果,搜索用时 15 毫秒
221.
Brennan Scott Thompson 《Journal of Economic Inequality》2010,8(4):451-462
In this paper, we consider methods of inference for vector measures of inequality and poverty. These vector measures may consist
of several different scalar measures of inequality or poverty in a single dimension, several scalar measures of poverty which
use different poverty lines, or several scalar measures of inequality or poverty in different dimensions. Our proposed methods
are illustrated with a Monte Carlo simulation and two empirical examples utilizing Canadian household data. 相似文献
222.
Pricing below cost is often classified as “dumping” in international trade and as “predatory pricing” in local markets. It is legally prohibited from practice because of earlier findings that it leads to predatory behavior by either eliminating competition or stealing market share. This study shows that a stochastic exchange rate can create incentives for a profit‐minded monopoly firm to set price below marginal cost. Our result departs from earlier findings because the optimal pricing decision is based on a rational behavior that does not exhibit any malicious intent against the competition to be considered as violating anti‐trust laws. The finding is a robust result, because our analysis demonstrates that this behavior occurs under various settings such as when the firm (i) is risk‐averse, (ii) can postpone prices until after exchange rates are realized, (iii) is capable of manufacturing in multiple countries, and (iv) operates under demand uncertainty in addition to the random exchange rate. 相似文献
223.
In emergent photovoltaics, nanoscale materials hold promise for optimizing device characteristics; however, the related impacts remain uncertain, resulting in challenges to decisions on strategic investment in technology innovation. We integrate multi‐criteria decision analysis (MCDA) and life‐cycle assessment (LCA) results (LCA‐MCDA) as a method of incorporating values of a hypothetical federal acquisition manager into the assessment of risks and benefits of emerging photovoltaic materials. Specifically, we compare adoption of copper zinc tin sulfide (CZTS) devices with molybdenum back contacts to alternative devices employing graphite or graphene instead of molybdenum. LCA impact results are interpreted alongside benefits of substitution including cost reductions and performance improvements through application of multi‐attribute utility theory. To assess the role of uncertainty we apply Monte Carlo simulation and sensitivity analysis. We find that graphene or graphite back contacts outperform molybdenum under most scenarios and assumptions. The use of decision analysis clarifies potential advantages of adopting graphite as a back contact while emphasizing the importance of mitigating conventional impacts of graphene production processes if graphene is used in emerging CZTS devices. Our research further demonstrates that a combination of LCA and MCDA increases the usability of LCA in assessing product sustainability. In particular, this approach identifies the most influential assumptions and data gaps in the analysis and the areas in which either engineering controls or further data collection may be necessary. 相似文献
224.
225.
226.
Research shows that individuals living in the southern part of the United States express more negative racial attitudes than those living outside the South. Using data from The American National Election Study (NES), the purpose of this paper is to assess whether key factors often associated with the Southern attitude distinction are indeed more potent in the South than elsewhere. Drawing data from the 1980s, 1990s, and 2000s, we further assess whether the impact of the South has increased or decreased over time. Results indicate that the impact of the South is negligible at best. Findings do show that place does matter for conservatives. However, in this case, non-South location matters more than the South. Relative to their liberal counterparts, conservatives in the non-South espouse more individualistic beliefs than do their Southern counterparts. These findings are discussed within the dominant theoretical framework in this area. 相似文献
227.
Uniformly most powerful Bayesian tests (UMPBTs) are a new class of Bayesian tests in which null hypotheses are rejected if their Bayes factor exceeds a specified threshold. The alternative hypotheses in UMPBTs are defined to maximize the probability that the null hypothesis is rejected. Here, we generalize the notion of UMPBTs by restricting the class of alternative hypotheses over which this maximization is performed, resulting in restricted most powerful Bayesian tests (RMPBTs). We then derive RMPBTs for linear models by restricting alternative hypotheses to g priors. For linear models, the rejection regions of RMPBTs coincide with those of usual frequentist F‐tests, provided that the evidence thresholds for the RMPBTs are appropriately matched to the size of the classical tests. This correspondence supplies default Bayes factors for many common tests of linear hypotheses. We illustrate the use of RMPBTs for ANOVA tests and t‐tests and compare their performance in numerical studies. 相似文献
228.
Objectives. Within the long line of inquiry on demand for sport, one area that has gone relatively unexamined is that of domestic migration. In this research, the relationship between population migration and team loyalty is explored. Methods. A linear mixed model uses data from the U.S. Census Bureau and Nielsen Company to analyze the effect domestic migration has on demand for National Football League games. Results. Ratings were higher in population centers with smaller per‐capita population inflow (regardless of the origins of the inflow). The results further showed that increases in population flow from City A to City B were associated with increased demand for broadcasts in City B when Team B visited City A. Conclusions. The first finding suggests that sports viewership is not utilized as a vehicle for domestic transplants to integrate into their new community. The second finding suggests there is a nostalgia effect for an individual's previous hometown, though not necessarily for the team representing it in the league. 相似文献
229.
Harding S, Libal K. Iraqi refugees and the humanitarian costs of the Iraq war: what role for social work? The US‐led invasion and war in Iraq has created one of the most significant refugee crises in recent decades. International nongovernmental organizations have partnered with local organizations in Jordan and Syria to provide humanitarian aid to some two million displaced Iraqis. Field research indicates that, as with other humanitarian crises, few trained social workers have contributed to policy and practice with displaced Iraqis. The case of Iraq provides an opportunity to consider how the social work profession can shape comprehensive global refugee policies and programs. This role is appropriate, given mandates for the profession to promote social justice and human rights. Using the case of Iraqi displacement, we illustrate the complexities of humanitarian services provision and the need for trained social workers to participate in humanitarian relief and development programs. We argue that a variety of social work institutions and actors should become more robust advocates for shaping just refugee policy and practice. 相似文献
230.
Cathy Humphreys Prue Holzer Dorothy Scott Fiona Arney Leah Bromfield Daryl Higgins 《Australian Social Work》2013,66(2):145-163
Abstract Governments across Australia are struggling to address escalating child protection notifications, a marked increase in the number of children in State care, a decrease in the number of foster carers and chronic workforce shortages in child welfare services. This paper explores the reform process that culminated in the proclamation of the Victorian Children, Youth and Families Act, 2005 and represents an aspect of the response in Victoria to these wider issues. It explores the history of the reform from the perspective of key actors from government, non-government sectors and academics who participated in the process. The paper explores the “ingredients of social policy reform” and how the change process was managed in Victoria. It does not seek to evaluate the reform but rather to understand the complex processes through which a propitious moment for reform was both seized and constructed. 相似文献