首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   494篇
  免费   14篇
管理学   51篇
民族学   2篇
人口学   67篇
丛书文集   5篇
理论方法论   45篇
综合类   2篇
社会学   304篇
统计学   32篇
  2023年   5篇
  2022年   3篇
  2020年   11篇
  2019年   9篇
  2018年   14篇
  2017年   21篇
  2016年   19篇
  2015年   7篇
  2014年   12篇
  2013年   79篇
  2012年   9篇
  2011年   23篇
  2010年   14篇
  2009年   20篇
  2008年   12篇
  2007年   24篇
  2006年   14篇
  2005年   14篇
  2004年   19篇
  2003年   10篇
  2002年   3篇
  2001年   5篇
  2000年   7篇
  1999年   8篇
  1998年   8篇
  1997年   10篇
  1996年   9篇
  1995年   6篇
  1994年   4篇
  1993年   5篇
  1992年   4篇
  1991年   6篇
  1990年   4篇
  1989年   3篇
  1988年   8篇
  1987年   6篇
  1986年   4篇
  1985年   6篇
  1984年   10篇
  1983年   3篇
  1982年   5篇
  1981年   6篇
  1980年   6篇
  1979年   3篇
  1978年   3篇
  1977年   3篇
  1976年   3篇
  1975年   3篇
  1974年   3篇
  1971年   4篇
排序方式: 共有508条查询结果,搜索用时 15 毫秒
431.
432.
433.
The Great Recession produced the highest rates of unemployment and foreclosure in the United States since the Great Depression. In this article the author examines the consequences of these poor economic conditions for fertility in the United States by estimating the effect of area‐level economic conditions on state fertility in the years leading up to and including the Great Recession. The economic impacts of the Great Recession, captured by state‐level economic conditions, had a strong negative effect on fertility in models with state and year fixed effects. These reductions in fertility were likely caused both by increased economic hardship and increased economic uncertainty.  相似文献   
434.
This research uses a location analysis approach for selecting aircraft alert sites for the defense of important national areas of interest identified by the US Department of Defense. Solutions are generated in a two step approach where the minimum number of sites is first identified using the location set covering problem and then the result is improved by finding the minimum aggregate network distance or p-median solution from the alternate optimal solutions to the LSCP. This approach also identifies the p-center solution to the problem ensuring equitable response to all areas of interest. Sensitivity analysis is performed to determine the impact of altering aircraft launch and flying times on the number of required alert sites and the amount of coverage provided by selecting fewer locations. Results indicate a significant increase in the number of alert locations needed in comparison to original military estimates. The research points out significant implications about future military base closure decisions and the trade-offs between cost and required response times of aircraft in a defense emergency.  相似文献   
435.
436.
The 2004 hurricane season was the worst in Florida’s history, with four hurricanes causing at least 47 deaths and some $45 billion in damages. To collect information on the demographic impact of those hurricanes, we surveyed households throughout the state and in the local areas that sustained the greatest damage. We estimate that one-quarter of Florida’s population evacuated prior to at least one hurricane; in some areas, well over one-half of the residents evacuated at least once, and many evacuated several times. Most evacuees stayed with family or friends and were away from home for only a few days. Using logistic regression analysis, we found that the strength of the hurricane and the vulnerability of the housing unit had the greatest impact on evacuation behavior; additionally, several demographic variables had significant effects on the probability of evacuating and the choice of evacuation lodging (family/friends, public shelters, or hotels/motels). With continued population growth in coastal areas and the apparent increase in hurricane activity caused by global warming, threats posed by hurricanes are rising in the United States and throughout the world. We believe the present study will help government officials plan more effectively for future hurricane evacuations.  相似文献   
437.
To explore the burnout situation of teachers in two schools in Macau and to investigate any differences made of demographic characteristics. The relation of burnout on social problem solving and holistic health of teachers is also studied. A self reported questionnaire with the Chinese Maslach Burnout Inventory (C-MBI), Chinese Social Problem Solving Inventory (C-SPSI) and the Body-Mind-Spirit Well-Being Inventory (BMSWBI) were used. Totally 138 teachers participated in the study. With Hong Kong data as a reference, Macau teachers scored in the average range of burnout in emotional exhaustion and depersonalization but scored in the low range of burnout in personal accomplishment. Significance differences were found in some dimensions of burnout in age, marital status, teaching experiences, education background and satisfaction with income. Both C-SPSI and BMSWBI were found to be significantly negative correlated with emotional exhaustion and depersonalization and positive correlated with personal achievement. The findings identified those with greater degree of burnout, to whom more attention should be paid. The study also contributed to the limited literature on the quality of life of teachers in Macau. Finally, the findings added on the data base for comparison internationally among the Chinese population.  相似文献   
438.
Economics students need not be greedy: Fairness and the ultimatum game   总被引:1,自引:0,他引:1  
Following Adam Smith, conventional economics gives self-interest the primary role of all economic behavior. However, past experiments with the ultimatum game often produce outcomes inconsistent with this orthodox conception of ‘economic man.’ In our replication of the ultimatum experiment, students at a small, liberal arts college do not allocate monetary rewards in a self-interested manner, but rather their choices conform with the social norm of ‘fairness’ (i.e., a 50/50 split). Contrary to past research, we find that economic majors are less motivated by self-interest than other students.  相似文献   
439.
440.
Social class gradients in children’s health and development are ubiquitous across time and geography. The authors develop a conceptual framework relating three actions of class—material allocation, salient group identity, and inter-group conflict—to the reproduction of class-based disparities in child health. A core proposition is that the actions of class stratification create variation in children’s mesosystems and microsystems in distinct locations in the ecology of everyday life. Variation in mesosystems (e.g., health care, neighborhoods) and microsystems (e.g., family structure, housing) become manifest in a wide variety of specific experiences and environments that produce the behavioral and biological antecedents to health and disease among children. The framework is explored via a review of theoretical and empirical contributions from multiple disciplines, and high-priority areas for future research are highlighted.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号