全文获取类型
收费全文 | 564篇 |
免费 | 24篇 |
专业分类
管理学 | 105篇 |
民族学 | 2篇 |
人口学 | 44篇 |
丛书文集 | 1篇 |
理论方法论 | 74篇 |
综合类 | 2篇 |
社会学 | 300篇 |
统计学 | 60篇 |
出版年
2023年 | 5篇 |
2022年 | 5篇 |
2021年 | 2篇 |
2020年 | 13篇 |
2019年 | 17篇 |
2018年 | 11篇 |
2017年 | 27篇 |
2016年 | 26篇 |
2015年 | 19篇 |
2014年 | 26篇 |
2013年 | 98篇 |
2012年 | 23篇 |
2011年 | 30篇 |
2010年 | 17篇 |
2009年 | 16篇 |
2008年 | 15篇 |
2007年 | 12篇 |
2006年 | 8篇 |
2005年 | 16篇 |
2004年 | 13篇 |
2003年 | 11篇 |
2002年 | 21篇 |
2001年 | 11篇 |
2000年 | 6篇 |
1999年 | 13篇 |
1998年 | 7篇 |
1997年 | 7篇 |
1996年 | 6篇 |
1995年 | 6篇 |
1994年 | 5篇 |
1993年 | 9篇 |
1992年 | 12篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 4篇 |
1988年 | 4篇 |
1987年 | 4篇 |
1985年 | 2篇 |
1984年 | 5篇 |
1983年 | 8篇 |
1982年 | 4篇 |
1981年 | 5篇 |
1980年 | 6篇 |
1979年 | 2篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1976年 | 3篇 |
1971年 | 2篇 |
1968年 | 1篇 |
1967年 | 1篇 |
排序方式: 共有588条查询结果,搜索用时 546 毫秒
181.
Let X1, …,Xn, and Y1, … Yn be consecutive samples from a distribution function F which itself is randomly chosen according to the Ferguson (1973) Dirichlet-process prior distribution on the space of distribution functions. Typically, prediction intervals employ the observations X1,…, Xn in the first sample in order to predict a specified function of the future sample Y1, …, Yn. Here one- and two-sided prediction intervals for at least q of N future observations are developed for the situation in which, in addition to the previous sample, there is prior information available. The information is specified via the parameter α of the Dirichlet process prior distribution. 相似文献
182.
Gregory L. Muhlin Patricia Cohen Elmer L. Struening Louis E. Genevie Seymour R. Kaplan Harris B. Peck 《Evaluation and program planning》1981,4(1):35-42
This article describes the use of social area analytic techniques in the study of the looting which occurred during the Con Edison power failure of July 13 and 14, 1977. Detailed procedures are outlined of the systematic collection and analysis of data which were developed from available data. Analyses contrasting competing explanatory theoretical models for blackout looting are presented. The central dependent variable is ratio of looted to retail stores. Both the numerator and denominator are aggregated to the census tract level. 相似文献
183.
The social institutions of modern technological culture often fail to provide adequate opportunity for the exchange of emotions and personal feelings of affect and esteem. The widespread development of alternative institutions such as sensitivity training can be seen as an attempt to compensate for the scarcity of this type of interpersonal communication. Reasons for this scarcity are examined in terms of a structural model of individual and societal resource differentiation. 相似文献
184.
185.
In this article, we analyze the relationship between family violence and risky sexual activity for female adolescents (age 14 to 17). We examine two forms of family violence: experience (receiving physical abuse from a parent or parent-figure) and exposure (witnessing interparental physical violence). We hypothesize that either form of violence will predict greater odds of engaging in risky sexual behavior. We define risky sexual activity as any of the following: having multiple partners within the last 12 months or having sex with partners who are themselves engaging in risky behavior (e.g., having multiple partners of either sex, injecting unprescribed drugs, sharing unprescribed needles for injecting drugs). We analyzed data from 710 respondents taken from the National Survey of Family Growth, Cycle V, living with at least one biological parent. Results showed that experiencing violence from a parent greatly increased the likelihood of risky sex, even when controlling for the experience of forced sex, age, mother's age at first birth, race, socioeconomic status, and religiosity. Female adolescents who had experienced forced sex, those who were older (especially 17-year-olds), non-Hispanic Blacks (but not Hispanics), those living in a family with low educational attainment (less than a high school diploma), and those for whom religion was not or only somewhat personally important were more likely to report risky sex compared to others. These effects were not modified by whether the respondents lived in single- or two-parent families. An interaction between the two forms of physical violence suggests that either form is sufficient to increase significantly the odds of risky sex; an analysis in which respondents were differentiated by their experience of either form of violence showed a strong effect of experience on risky sex, net of the control variables. 相似文献
186.
187.
Safety Risk Analysis of an Innovative Environmental Technology 总被引:1,自引:0,他引:1
Gregory S. Parnell Michael Frimpon John Barnes Jack M. Kloeber Jr. Richard F. Deckro & Jack A. Jackson 《Risk analysis》2001,21(1):143-156
The authors describe a decision and risk analysis performed for the cleanup of a large Department of Energy mixed-waste subsurface disposal area governed by the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). In a previous study, the authors worked with the site decision makers, state regulators, and U.S. Environmental Protection Agency regional regulators to develop a CERCLA-based multiobjective decision analysis value model and used the model to perform a screening analysis of 28 remedial alternatives. The analysis results identified an innovative technology, in situ vitrification, with high effectiveness versus cost. Since this technology had not been used on this scale before, the major uncertainties were contaminant migration and pressure buildup. Pressure buildup was a safety concern due to the potential risks to worker safety. With the help of environmental technology experts remedial alternative changes were identified to mitigate the concerns about contaminant migration and pressure buildup. The analysis results showed that the probability of an event with a risk to worker safety had been significantly reduced. Based on these results, site decision makers have refocused their test program to examine in situ vitrification and have continued the use of the CERCLA-based decision analysis methodology to analyze remedial alternatives. 相似文献
188.
Crystal A. Evans Gregory R. Evans Lorin Mayo 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2017,28(2):556-570
Using regression analysis, 41 years of charitable giving and income data was evaluated to determine if charitable giving is a luxury, normal, or inferior good, and to determine the income elasticity for separate nonprofit sectors. Total Giving to the nonprofit subsector as well as most nonprofit sectors (Religion, Education, Human Services, and Environment) is a normal good, while Arts and International giving are likely luxury goods. However, evidence suggests that Health and Public Benefit are likely inferior goods. This research makes three contributions. First, it offers quantitative data as evidence in the supply-side and demand-side debates. Second, owing to income elasticities, researchers propose the Philanthropic Sphere of Influence and postulate that as incomes rise, donors are more likely to give to causes from which they are less likely to personally benefit. Third, by evaluating charitable giving as a whole and then by each subsector, the research demonstrates that each nonprofit subsector responds uniquely to changes in income. Therefore, nonprofit sectors should be evaluated separately. 相似文献
189.
Seth Kaplan Jose Cortina Gregory Ruark Kate LaPort Vias Nicolaides 《The Leadership Quarterly》2014,25(3):563-580
The actions of organizational leaders are important determinants of the emergence, management, and consequences of employee emotional experience. However, the nature and dimensionality of leader emotion management and the behaviors that constitute such management are largely unknown. The authors present a comprehensive, theoretically-derived model of leader emotion management which clarifies the nature of emotion management and its role in leadership. This model also delineates the knowledge and skill-based antecedents of emotion management and the consequences of such management. Specifically, we propose linkages between particular KSAOs and specific emotion management dimensions and between those dimensions and particular individual and organizational outcomes. The model is meant to serve as a framework to guide empirical efforts in investigating the nature and correlates of leader emotion management. 相似文献
190.
Parenthood postponement is a key demographic trend of the last three decades. In order to rationalize that stylized fact, we extend the canonical model by Barro and Becker (Econometrica 57:481–501, 1989) to include two—instead of one—reproduction periods. We examine how the cost structure of early and late children in terms of time and goods affects the optimal fertility timing. Then, we identify conditions that guarantee the existence and uniqueness of a stationary equilibrium with a stationary cohort size. Finally, we examine how the model can rationalize the observed postponement of births, and we highlight two plausible causes: (1) a general rise in the cost of children in terms of goods and (2) a decline in the degree of family altruism. 相似文献