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   716篇
  免费   22篇
管理学   86篇
民族学   2篇
人口学   53篇
丛书文集   2篇
理论方法论   92篇
综合类   2篇
社会学   448篇
统计学   53篇
  2023年   6篇
  2022年   6篇
  2021年   4篇
  2020年   12篇
  2019年   12篇
  2018年   17篇
  2017年   19篇
  2016年   27篇
  2015年   14篇
  2014年   28篇
  2013年   130篇
  2012年   20篇
  2011年   31篇
  2010年   23篇
  2009年   14篇
  2008年   21篇
  2007年   23篇
  2006年   23篇
  2005年   22篇
  2004年   30篇
  2003年   21篇
  2002年   23篇
  2001年   10篇
  2000年   10篇
  1999年   12篇
  1998年   9篇
  1997年   9篇
  1996年   9篇
  1995年   10篇
  1994年   8篇
  1993年   5篇
  1992年   10篇
  1991年   7篇
  1990年   9篇
  1989年   11篇
  1988年   9篇
  1987年   5篇
  1986年   7篇
  1985年   9篇
  1984年   6篇
  1983年   12篇
  1982年   5篇
  1981年   5篇
  1979年   4篇
  1978年   4篇
  1977年   3篇
  1976年   7篇
  1974年   2篇
  1969年   2篇
  1968年   3篇
排序方式: 共有738条查询结果,搜索用时 31 毫秒
661.
In attempts to soothe the nascent fear of the scheduled airline traveler, passengers waiting takeoff are sometimes reminded of the cliche that they may have already completed the most dangerous part of their trip — the drive to the airport. The objective of this paper is to communicate under what conditions air travel is indeed safer than highway travel and vice versa. The conventional wisdom among risk communicators that air travel is so much safer than car travel arises from the most widely quoted death rates per billion miles for each — 0.6 for air compared to 24 for road. There are three reasons why such an unqualified comparison of aggregated fatality rates is inappropriate. First, the airline rate is passenger fatalities per passenger mile, whereas the road rate is all fatalities (any occupants, pedestrians, etc.) per vehicle mile. Second, road travel that competes with air travel is on the rural interstate system, not on average roads. Third, driver and vehicle characteristics, and driver behavior, lead to car-driver risks that vary over a wide range. Expressions derived to compare risk for drivers with given characteristics to those on airline trips of given distance showed that 40-year-old, belted, alcohol-free drivers of cars 700 pounds heavier than average are slightly less likely to be killed in 600 miles of rural interstate driving than in airline trips of the same length. Compared to this driver, 18-year-old, unbelted, intoxicated, male drivers of cars 700 pounds lighter than average have a risk over 1000 times greater. Furthermore, it is shown that the cliche above is untrue for a group of drivers having the age distribution of airline passengers.  相似文献   
662.
663.
Abstract This research examines nonmetropolitan places most likely to support or oppose proposals for locally undesirable land uses (LULUs) involving waste management facilities. Two hypotheses are tested: (1) that relatively remote communities of lower socioeconomic status will be less likely to oppose such proposals; and (2) that support for such proposals is widespread among nonmetropolitan communities because of growth machine activities. Using key informants and secondary data for 166 non‐metropolitan Pennsylvania places, we find that local growth promotion, especially efforts to promote business and industry, is related positively to community experience with plant closings and to proposals for these LULUs. Where these proposals are made, community opposition tends to be present as well, particularly in larger communities and, surprisingly, in those of lower socioeconomic status. The significance of these findings is discussed in terms of the growth machine and the opposition they can provoke to protect the use value of land in a single nonmetropolitan region.  相似文献   
664.
665.
This study examined the stability of belonging to a gang in early adolescence, the behaviour profiles, family characteristics, and friendships of nongang and gang members. The subjects in the present study were originally part of a larger sample of boys. One hundred and forty‐two boys who had a complete data set at ages 11, 12, 13, and 14 were selected for the present study. Loglinear analyses indicated that gang membership was stable from ages 13 to 14, but not at earlier ages. Boys were divided into three groups: stable gang members (children who belonged to a gang at ages 13 and 14); unstable gang members (children who belonged to a gang at either age 13 or 14) and nongang members. Repeated analyses of variance indicated that stable gang members had significantly higher scores than nongang members on teacher ratings of fighting behaviour, hyperactivity, inattention and oppositional behaviour, and self‐reported delinquent activities (drug and alcohol use, stealing and vandalism). Peers rated gang members as more aggressive than nongang members. The results are discussed from a developmental perspective.  相似文献   
666.
667.
This article is an intricate empirical examination of the relationship between bridging and bonding with respect to subcultural differences in religious denomination and faith orientation. The respondents were 2,710 Christian church attendees from nineteen denominations across Australia. They were surveyed with a closed‐answer questionnaire covering the topics of faith, demographics, involvement in the congregation, and involvement in the wider community. The results revealed a positive relationship between bonding and bridging social capital, with a high level of bonding associated with a high level of bridging for all denominations and faith identities. There was no evidence that high bonding within the congregation restricted bridging beyond the congregation. The results support the notion that the relationship between bonding and bridging may vary with societal subcultures.  相似文献   
668.
Comment     
A vector autoregression is a reduced-form representation and therefore would be expected to change when any structural equation in the system changes, regardless of whether economic decisions are forward-looking. Even so, a dynamic simulation of a model with unit roots will exhibit large cumulative errors, making it difficult to detect whether a structural change has indeed occurred.  相似文献   
669.
ABSTRACT

The bullying of lesbian, gay, bisexual, and transgender (LGBT) youth in schools is a significant problem in the United States. This study examined responses of youth participants at a statewide Safe Schools Summit to a survey of their experiences with school-based violence, harassment, and discrimination, and of the effects of their attendance at the Summit. Quantitative analyses found that 92% of respondents felt “more empowered” following participation in the Summit. Qualitative analyses found several emerging themes related to respondents' experiences with victimization (leading to a sense of powerlessness and attempts at self-protection) and to their experiences at the Summit itself (leading to catharsis, strengthened skills, and a commitment to confront bullies and to make schools safer). A conceptual model of the interaction of these factors is presented and implications for further research and practice are discussed.  相似文献   
670.
Social class and political participation: A review and an explanation   总被引:1,自引:0,他引:1  
This paper reviews and explains the relationship between socioeconomic status and political participation from a structural perspective; i.e., social organization influences people's range of options, producing different rates of behavior among those in varying locations in the society. There are six categories of political participation: cognitive, expressive, organizational, electoral, partisan, and governmental. In each case, the poor display the lowest and the rich the highest rate of participation. This difference reflects variations in political and psychological resources and the structure of the electoral process. As a result, political benefits also differ by social class.  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