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   1185篇
  免费   90篇
管理学   89篇
民族学   20篇
人口学   140篇
丛书文集   2篇
理论方法论   158篇
综合类   8篇
社会学   801篇
统计学   57篇
  2024年   3篇
  2023年   18篇
  2022年   11篇
  2021年   12篇
  2020年   51篇
  2019年   44篇
  2018年   74篇
  2017年   111篇
  2016年   83篇
  2015年   62篇
  2014年   48篇
  2013年   223篇
  2012年   64篇
  2011年   68篇
  2010年   35篇
  2009年   37篇
  2008年   51篇
  2007年   38篇
  2006年   30篇
  2005年   34篇
  2004年   23篇
  2003年   30篇
  2002年   28篇
  2001年   10篇
  2000年   11篇
  1999年   17篇
  1998年   9篇
  1997年   2篇
  1996年   3篇
  1995年   10篇
  1994年   2篇
  1993年   7篇
  1992年   1篇
  1991年   4篇
  1990年   3篇
  1989年   3篇
  1988年   1篇
  1987年   1篇
  1986年   3篇
  1985年   1篇
  1984年   1篇
  1983年   4篇
  1980年   2篇
  1979年   1篇
  1978年   1篇
排序方式: 共有1275条查询结果,搜索用时 453 毫秒
971.
Although laparoendoscopic single-site surgery (LESS) is feasible among expert laparoscopic surgeons, it poses many technical challenges not seen in conventional laparoscopy (CL). Recent technological advancements in single-incision instrumentation have created more interest and widespread usage of LESS. However, neither LESS nor its novel instrumentation have been thoroughly studied or evaluated using human factors and ergonomics techniques. Consequently, the aim of this study was to compare the physical performance of LESS to CL using a standardized task. Wrist and elbow angular movements, range of motion and physical discomfort were assessed for 24 novice participants. There were no significant differences for physical comfort/discomfort ratings or elbow and wrist flexion/extension range of motion between CL and LESS. However, wrist radial/ulnar range of motion was significantly greater in LESS compared to CL (p < 0.05). Additionally, wrist radial/ ulnar range of motion was significantly greater using the SILS Port compared to the GelPOINT (p < 0.05). Although further investigation is needed, LESS resulted in greater wrist deviation and range of motion due to the close proximity of the instruments, restrictive nature of the single-port devices, and the need to achieve adequate instrument triangulation and visualization.  相似文献   
972.
Psychosocial discomfort may amplify job-related risk factors. The aim of this study is to evaluate job stress in a high fashion clothing company with upper limb biomechanical overload due to repetitive and forceful manual activities. Biomechanical risk was analyzed and in part reduced using the OCRA Check list. A total of 518 workers (433 females and 85 males) were investigated to determine anxiety (by STAI 1 and 2), occupational stress (using the Italian version of the Karasek Job Content Questionnaire) and perception of symptoms. Final biomechanical assessment did not reveal high risk jobs, except for cutting. Although the perception of anxiety and job insecurity was within the normal range, all the workers showed a high level of job strain (correlated with the perception of symptoms) due, probably, to very low decision latitude. It was suggested that job strain may increase the perception of symptoms. Moreover, the result of this study indicates that musculoskeletal overload has to be further analyzed since its low level is not in agreement with the level of discomfort due to the repetitive tasks.  相似文献   
973.
The rapid increase in the use of service learning raises important public policy questions about who is being served and whether partner agencies have the capacity to meet student demand for community‐based experiences. This article uses a large sample of nonprofit organizations and a comparative framework to examine the characteristics of partner agencies and the scope and nature of college student community involvement. Multivariate analysis tests these factors on a community agency's ability to engage more students, particularly service learners. The findings are generally optimistic about agency willingness to involve students, suggesting widespread community benefits from their involvement. While organizational size and capacity predict current student engagement, an agency's past experience with students and its perceptions of student benefits have the greatest impact on its willingness to take on future students.  相似文献   
974.
975.
通过对清帝国所绘制的多个版本的<百苗图>的绘制缘由、分类体系、构图方式、人物呈现、风俗描绘、宗教信仰的描述等多方面进行细致的分析解读,说明这一图绘所折射的乃是清帝国关于"他者"的认识与想像.在近代早期进程中,即大约于1500年至1800年之间,不同类型的扩张性国家与帝国,在或经由征讨、或直接殖民、或借助外交而扩张时,收集并记录了即将与之往来互动的人群的信息;并且,对他者的民族志兴趣并非是一个"西方独有的"现象,而是更广泛的近代早期时期的国家建构过程的一部分.  相似文献   
976.
This article analyzes the theoretical and empirical parameters of social regulation in contemporary global food markets, focusing on the rapidly expanding Fair Trade initiative. Fair Trade seeks to transform North/South relations by fostering ethical consumption, producer empowerment, and certified commodity sales. This initiative joins an array of labor and environmental standard and certification systems which are often conceptualized as “private regulations” since they depend on the voluntary participation of firms. I argue that these new institutional arrangements are better understood as “social regulations” since they operate beyond the traditional bounds of private and public (corporate and state) domains and are animated by individual and collective actors. In the case of Fair Trade, I illuminate how relational and civic values are embedded in economic practices and institutions and how new quality assessments are promoted as much by social movement groups and loosely aligned consumers and producers as they are by market forces. This initiative's recent commercial success has deepened price competition and buyer control and eroded its traditional peasant base, yet it has simultaneously created new openings for progressive politics. The study reveals the complex and contested nature of social regulation in the global food market as movement efforts move beyond critique to institution building.  相似文献   
977.
This paper uses recent data on U.S. children from the National Survey of America’s Families (NSAF) to create indices that tally the number of problems or risks that individual children experience. We compare results with those from indices developed elsewhere that assess the change across sets of population-level indicators. While the two types of indices show similar trends over time, specific changes, as well as trends, depend on the specific domain of well-being or context examined, highlighting the importance of the distinction between well-being and context. Children with problems in multiple domains tend to be socio-economically and demographically disadvantaged compared with other children. We preface this work by providing an overview of the history of child well-being indicators and distinguish indices of child well-being from indices of the condition of children.
Laura LippmanEmail:
  相似文献   
978.
In the spring of 2013 a British feminist campaign sought to have men’s magazines, such as Zoo, Nuts, and Loaded, removed from the shelves of major retailers, arguing that they are sexist and objectify women. The campaign—known as Lose the Lads’ Mags (LTLM)—received extensive media coverage and was the topic of considerable public debate. Working with a data corpus comprising 5,140 reader comments posted on news websites in response to reporting of LTLM, this paper explores the repeated focus on men and masculinity as “attacked,” “under threat,” “victimised,” or “demonised” in what is depicted as a sinister new gender order. Drawing on a poststructuralist feminist discursive analysis, we show how these broad claims are underpinned by four interpretative repertoires that centre around: (i) gendered double standards; (ii) male (hetero)sexuality under threat; (iii) the war on the “normal bloke”; and (iv) the notion of feminism as unconcerned with equality but rather “out to get men.” This paper contributes to an understanding of (online) popular misogyny and changing modes of sexism.  相似文献   
979.
980.
This article shows that (intergroup) oppression can be strategically motivated by (intragroup) processes. It is often assumed that high-status groups oppress when their social position is declining (relative deprivation). Counterintuitively, research shows that oppression also occurs when their position is improving (gratification): a curvilinear relationship referred to as "the v-curve effect." We test the hypothesis that this relationship is due to intragroup processes within the high-status group: individuals respond strategically to elite norms. Two experiments manipulated participants' future prospects: to join the nation's elite in future (relative gratification), social stasis, or status decline (relative deprivation, Study 2). Elite norms toward immigrants (positive, negative) were manipulated independently. The curvilinear relationship was only found when norms were negative. In other words, those who anticipate joining the elite tailor their actions to the norms of their prospective in-group.  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