全文获取类型
收费全文 | 1054篇 |
免费 | 41篇 |
专业分类
管理学 | 163篇 |
民族学 | 6篇 |
人口学 | 124篇 |
丛书文集 | 8篇 |
理论方法论 | 97篇 |
综合类 | 11篇 |
社会学 | 571篇 |
统计学 | 115篇 |
出版年
2023年 | 7篇 |
2021年 | 10篇 |
2020年 | 19篇 |
2019年 | 17篇 |
2018年 | 27篇 |
2017年 | 40篇 |
2016年 | 32篇 |
2015年 | 29篇 |
2014年 | 40篇 |
2013年 | 168篇 |
2012年 | 37篇 |
2011年 | 36篇 |
2010年 | 28篇 |
2009年 | 31篇 |
2008年 | 27篇 |
2007年 | 34篇 |
2006年 | 37篇 |
2005年 | 37篇 |
2004年 | 29篇 |
2003年 | 21篇 |
2002年 | 29篇 |
2001年 | 27篇 |
2000年 | 25篇 |
1999年 | 27篇 |
1998年 | 17篇 |
1997年 | 13篇 |
1996年 | 12篇 |
1995年 | 16篇 |
1994年 | 13篇 |
1993年 | 7篇 |
1992年 | 10篇 |
1991年 | 15篇 |
1990年 | 16篇 |
1989年 | 11篇 |
1988年 | 10篇 |
1987年 | 7篇 |
1986年 | 7篇 |
1985年 | 9篇 |
1984年 | 7篇 |
1983年 | 15篇 |
1982年 | 10篇 |
1981年 | 10篇 |
1980年 | 16篇 |
1979年 | 6篇 |
1978年 | 6篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1975年 | 7篇 |
1974年 | 7篇 |
1968年 | 3篇 |
排序方式: 共有1095条查询结果,搜索用时 140 毫秒
861.
ABSTRACTVery little is known about how people perceive and respond to sexual relationships between students and teachers, and even less is known about how adolescents view these relationships. In this study, a large sample of high school students (N = 1203; Mean age: 16.83) responded to four scenarios describing a sexual relationship between a student and teacher. We manipulated student and teacher age, and the power differential between the student and teacher and we measured perceptions of wrongness and likelihood of reporting the situation. The data indicated that in situations of older students (18 vs. 14 or 16) and younger teachers (21 vs 30 or 40), they are less likely to be perceived as wrong and less likely to be reported. Likewise, situations were judged as more wrong when the power differential between students and teachers was greater. Further, there were strong gender differences, such that females (vs. males) consistently viewed the situations as more wrong and were more likely to report. Implications for future research and policy are discussed. 相似文献
862.
Thomas J. Cova Philip E. Dennison Dapeng Li Frank A. Drews Laura K. Siebeneck Michael K. Lindell 《Risk analysis》2017,37(4):601-611
Determining the most effective public warnings to issue during a hazardous environmental event is a complex problem. Three primary questions need to be answered: Who should take protective action? What is the best action? and When should this action be initiated? Warning triggers provide a proactive means for emergency managers to simultaneously answer these questions by recommending that a target group take a specified protective action if a preset environmental trigger condition occurs (e.g., warn a community to evacuate if a wildfire crosses a proximal ridgeline). Triggers are used to warn the public across a wide variety of environmental hazards, and an improved understanding of their nature and role promises to: (1) advance protective action theory by unifying the natural, built, and social themes in hazards research into one framework, (2) reveal important information about emergency managers’ risk perception, situational awareness, and threat assessment regarding threat behavior and public response, and (3) advance spatiotemporal models for representing the geography and timing of disaster warning and response (i.e., a coupled natural‐built‐social system). We provide an overview and research agenda designed to advance our understanding and modeling of warning triggers. 相似文献
863.
A dynamic power prior for borrowing historical data in noninferiority trials with binary endpoint
下载免费PDF全文
![点击此处可从《Pharmaceutical statistics》网站下载免费的PDF全文](/ch/ext_images/free.gif)
G. Frank Liu 《Pharmaceutical statistics》2018,17(1):61-73
Traditionally, noninferiority hypotheses have been tested using a frequentist method with a fixed margin. Given that information for the control group is often available from previous studies, it is interesting to consider a Bayesian approach in which information is “borrowed” for the control group to improve efficiency. However, construction of an appropriate informative prior can be challenging. In this paper, we consider a hybrid Bayesian approach for testing noninferiority hypotheses in studies with a binary endpoint. To account for heterogeneity between the historical information and the current trial for the control group, a dynamic P value–based power prior parameter is proposed to adjust the amount of information borrowed from the historical data. This approach extends the simple test‐then‐pool method to allow a continuous discounting power parameter. An adjusted α level is also proposed to better control the type I error. Simulations are conducted to investigate the performance of the proposed method and to make comparisons with other methods including test‐then‐pool and hierarchical modeling. The methods are illustrated with data from vaccine clinical trials. 相似文献
864.
AbstractThis article examines the effect of the housing market on nursing home diversion and/or transition. Prior evaluations of federally funded diversion/transition efforts indicate that lack of housing may be a significant impediment to diversion policy efforts. We test this charge by examining the transition rates in all 351 municipalities in Massachusetts, using a data set of over 15,000 individuals seeking to remain or transition home between 2010 and 2014 through Massachusetts' Options Counseling program and their relation to key indicators of housing quality and affordability, including housing burden, crowding, and incomplete kitchen and plumbing facilities. We also control for demographic indicators identified in previous findings, which are age, level of frailty, and whether seniors live alone. We do not find a significant relationship between housing affordability or quality and successful nursing home diversion. This fact suggests that consumers are not as sensitive to housing costs and conditions as previously expected. Future research should continue to investigate the economic and social conditions behind this fact in the context of home value appreciation, incidence of home ownership, and the ability of seniors to offset nursing home costs through accumulated home equity. 相似文献
865.
Frank Hendriks Merlijn van Hulst 《Innovation: The European Journal of Social Science Research》2016,29(2):161-176
The police is one of the most prominent organizations in the frontline of public administration. In order to deal with high external expectations, the organization has been said to develop and nurture multiple police cultures. Applying Grid Group Cultural Theory, or GGCT, we address the following questions: what sets of values, beliefs and practices has the police organization developed to deal with high expectations stemming from their publics? How do cultural tensions play out in real-life practices of policing “under pressure”? We find that cultural patterns described in the general literature on policing can be plotted on the GGCT map. Zooming in on the case of policing in the Netherlands, cultural plurality appears to be not only prominent in the police organization as such, but can also be found in the form of continuous cultural “tap-dancing” – swift, flexible and improvisational shifting – at various levels of active policing. 相似文献
866.
867.
868.
In this paper, we examine the process of dynamic capability development in a large pharmaceutical firm. Using interviews with multiple managers at different organizational levels, we developed two narratives of the process of developing two separate dynamic capabilities in the same firm. We focus on three areas that prior research has shown to be critical in the early stages of the process of implementing new strategic initiatives: the cognitive orientations of key personnel, managerial action undertaken within the firm, and the firm's internal and external contexts. We provide evidence that managers undertake specific initiatives based on their own particular cognitive orientations , and that senior managers play a major role in the development of capabilities by imprinting the organization with their specific cognitive orientation and then orchestrating the multilevel organizational routines necessary for actualization of a capability. These replicable actions by senior management during the early stages of capability development can lead to the development of a capability that is not initially in the cognitive frames of lower level employees. Finally, we will show that internal and external contingencies have a profound impact on the decision to develop a capability, and to discontinue its development. Our findings thus suggest that the process of developing new capabilities shares common elements with other strategic initiatives. 相似文献
869.
870.