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   1251篇
  免费   75篇
管理学   134篇
民族学   8篇
人口学   118篇
丛书文集   10篇
理论方法论   142篇
综合类   7篇
社会学   783篇
统计学   124篇
  2023年   13篇
  2022年   9篇
  2021年   12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   7篇
  1981年   3篇
  1980年   6篇
  1979年   6篇
  1977年   4篇
  1976年   3篇
  1974年   5篇
  1970年   3篇
  1969年   3篇
排序方式: 共有1326条查询结果,搜索用时 500 毫秒
71.
72.
This study looks at how gender relates to a critical economic behavior—savings activity. We start with the proposition that gender is not merely an additional variable to explain savings choices. Gender is the primary type of social categorization in the U.S. today. Therefore, other variables will be differently relevant to savings depending on gender. We use a national survey, the 2006 Economic Decision Making Survey conducted by Michigan State University’s Institute for Public Policy and Social Research, to examine the proposition. Basic frequencies reveal nonsignificant differences in savings participation across gender, but regression analysis including interactions of gender with other key variables reveals that multiple aspects of individuals’ lives are influenced by gender to predict savings plan participation.  相似文献   
73.
The Interpretation of Line of Regard by Prelingually Deaf Children   总被引:2,自引:0,他引:2  
The ability of 5- to 12-year-old deaf children to utilise and interpret another person's visual line of regard (where the eyes are looking) was studied in four experiments using cartoon faces. The children had little difficulty in determining whether or not a face was looking directly at them. They had more difficulty, however, with more complex tasks requiring them to infer mental states of desire and intention from line of regard and to ignore line of regard when it was inappropriate to attend to this cue. Deaf children raised in a hearing environment appear to have more difficulty with these more complex tasks than hearing children. The results are discussed in terms of the special difficulties facing some deaf children in the development of skills involving utilisation of line of regard and the implications for the development of joint attentional behaviour, theory of mind and dyadic social interaction in deaf and hearing children.  相似文献   
74.
Mental rotation involves transforming a mental image of an object so as to accurately predict how the object would look if it were rotated in space. This study examined mental rotation in male and female 3‐month‐olds, using the stimuli and paradigm developed by Moore and Johnson (2008) . Infants were habituated to a video of a three‐dimensional object rotating back and forth through a 240° angle around the vertical axis. After habituation, infants were tested both with videos of the same object rotating through the previously unseen 120° angle, and with the mirror image of that display. Unlike females, who fixated the test displays for approximately equal durations, males spent significantly more time fixating the familiar object than the mirror‐image object. Because familiarity preferences like this emerge when infants are relatively slow to process a habituation stimulus, the data support the interpretation that mental rotation of dynamic three‐dimensional stimuli is relatively difficult—but possible—for 3‐month‐old males. Interpretation of the sex differences observed in 3‐ and 5‐month‐olds’ performances is discussed.  相似文献   
75.
76.
This article represents a narrative, 'women and the internet', as a women and technology origin story with a fixed beginning, a contested centre, and an open ending. This article analyses our engagement with this narrative as a pilot study was conducted to look at women's perceptions of, and relationships to, the internet. Although this story felt like a coherent and persuasive narrative, this was questioned as the outcomes of the pilot study were reflected upon. Women coming to the 'net' led to a reconstruction of the questions that need to be addressed in researching gender and information technology. This article begins by describing and deconstructing the motivating story which was brought to this research project. Three genres are introduced-'the webbed utopia', 'flamed out' and 'locked into locality'-which are seen as forming the contested centre of this narrative. While each genre has its own narrative logic, all of them draw on a common tale of historical origins. From each of these perspectives 'Women and the internet' has an ending which is still open, but is rapidly closing. Three questions are then identified which have been raised by analysis: what do we mean by 'access'?; what do we mean by 'the internet'? and 'which women'? The seeming simplicity of these questions disguises serious difficulties which research in this area must address.  相似文献   
77.
Application of Executive Order 12898 to risk assessment of highway or rail transport of hazardous materials has proven difficult; in general, the location and conditions affecting the propagation of a plume of hazardous material released in a potential accident are unknown. Therefore, analyses have only been possible in a geographically broad or approximate manner. The advent of geographic information systems and development of software enhancements at Sandia National Laboratories have made kilometer-by-kilometer analysis of populations tallied by U.S. Census blocks along entire routes practicable. Tabulations of total or racially/ethnically distinct populations close to a route, its alternatives, or the broader surrounding area, can then be compared and differences evaluated statistically. This article presents methods of comparing populations and their racial/ethnic compositions using simple tabulations, histograms, and chi-square tests for statistical significance of differences found. Two examples of these methods are presented: comparison of two routes and comparison of a route with its surroundings.  相似文献   
78.
Sociological responses to the increase in recent years of psychiatric reports of multiple personality (latterly redefined as Dissociative Identity Disorder) have focused upon its discursive production as a diagnostic category. Drawing on life-history interviews with survivors of extreme childhood abuse - some of whom defined themselves as having 'multiple personalities' - this paper suggests that an adequate sociological account needs to combine analysis of the popular and clinical discourses of dissociation/multiplicity, with an understanding of the relationship between these and particular individual auto/biographies. The production of a narrative of fragmented subjectivity is considered as an active engagement with previously denied and silenced autobiographical experience and with the dominant contemporary discourse that allows for the episodic denial of self-reflexive selfhood. In the light of DID diagnoses being largely applied to/adopted by women, questions are raised con-cerning the possible impact of the adoption of a multiple identity on individual integrity and autonomy.  相似文献   
79.
80.
Campylobacteriosis is an important food-borne illness with more than a million U.S. cases annually. Antibiotic treatment is usually not required. However, erythromycin, a macrolide antibiotic, is recommended for the treatment of severe cases. Therefore, it is considered a critically important antibiotic and given special attention as to the risk that food animal use will lead to resistant infections and compromised human treatment. To assess this risk, we used a retrospective approach; estimating the number of campylobacteriosis cases caused by specific meat consumption utilizing the preventable fraction. We then determined the number of cases with macrolide resistance Campylobacter spp. based on a linear model relating the resistance fraction to on-farm macrolide use. In this article, we considered the uncertainties in the parameter estimates, utilized a more elaborate model of resistance development and separated C. coli and C. jejuni . There are no published data for the probability of compromised treatment outcome due to macrolide resistance. Therefore, our estimates of compromised treatment outcome were based on data for fluoroquinolone-resistant infections. The conservative results show the human health risks are extremely low. For example, the predicted risk of suboptimal human treatment of infection with C. coli from swine is only 1 in 82 million; with a 95% chance it could be as high as 1 in 49 million. Risks from C. jejuni in poultry or beef are even less. Reduced antibiotic use can adversely impact animal health. These low human risks should be weighed against the alternative risks.  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