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   3013篇
  免费   135篇
  国内免费   52篇
管理学   145篇
民族学   30篇
人口学   52篇
丛书文集   392篇
理论方法论   142篇
综合类   2209篇
社会学   172篇
统计学   58篇
  2024年   7篇
  2023年   28篇
  2022年   41篇
  2021年   52篇
  2020年   60篇
  2019年   61篇
  2018年   57篇
  2017年   73篇
  2016年   60篇
  2015年   81篇
  2014年   161篇
  2013年   171篇
  2012年   204篇
  2011年   266篇
  2010年   177篇
  2009年   198篇
  2008年   203篇
  2007年   184篇
  2006年   227篇
  2005年   199篇
  2004年   165篇
  2003年   162篇
  2002年   120篇
  2001年   116篇
  2000年   61篇
  1999年   14篇
  1998年   13篇
  1997年   10篇
  1996年   3篇
  1995年   6篇
  1994年   8篇
  1993年   6篇
  1992年   5篇
  1990年   1篇
排序方式: 共有3200条查询结果,搜索用时 31 毫秒
71.
The American Red Cross is the most active nonprofit organization involved in disaster planning and response in the United States. The organization deployed nearly 50,000 volunteers to provide essential support to victims of some 125,000 domestic disasters, including home fires, hurricanes, wildfires, and floods, in a recent two‐year period. This study asks how American Red Cross disaster response volunteer experiences function to cultivate satisfaction and, at the other end of the spectrum, the kind of dissatisfaction that leads people to quit; it pays particular attention to ways in which volunteer management shapes dissatisfaction and fatigue because of implications for volunteer retention. Paradoxically, the Red Cross facilitates the highly satisfying act of helping victims, but volunteers feel dissatisfied when management practices get in the way of helping. The study suggests voluntary organizations that rely on skilled, long‐term volunteers to deliver services should evaluate and strengthen their communication strategies, recognition practices, and support systems for volunteers in distress.  相似文献   
72.
The Weibull distribution is widely used due to its versatility and relative simplicity. In our paper, the non informative priors for the ratio of the scale parameters of two Weibull models are provided. The asymptotic matching of coverage probabilities of Bayesian credible intervals is considered, with the corresponding frequentist coverage probabilities. We developed the various priors for the ratio of two scale parameters using the following matching criteria: quantile matching, matching of distribution function, highest posterior density matching, and inversion of test statistics. One particular prior, which meets all the matching criteria, is found. Next, we derive the reference priors for groups of ordering. We see that all the reference priors satisfy a first-order matching criterion and that the one-at-a-time reference prior is a second-order matching prior. A simulation study is performed and an example given.  相似文献   
73.
阮世勤 《琼州学院学报》2012,19(1):63-64,62
玛丽·雪莱在《玛西尔达》借助于对女性个体经验的言说,直言了女性在父权社会主体性场域内外的个体经验的文化困境。  相似文献   
74.
无法识别创业风险是导致创业失败的主要原因之一,如何有效识别并管理创业风险是新创企业健康成长的关键.社会网络能够弥补创业者在识别风险过程中的信息劣势,但既有研究极少探索社会网络是否以及如何影响创业风险识别.为弥补这个研究空白,文章利用信息处理理论为研究框架,构建了创业风险识别模型.具体而言,结构洞和网络强度有利于创业者获取更多、高质量与风险相关的信息,进而识别更多的创业风险;获取信息的数量在网络强度与创业风险识别关系之间发挥完全中介作用;创业者的先前经验正向影响创业风险识别,并对结构洞与获取信息的数量之间关系起调节作用.文章讨论了研究结果的理论贡献与实践启发.  相似文献   
75.
高校图书馆联合虚拟参考咨询服务是一种全新的信息服务形式,深受广大用户的喜爱和欢迎。该文通过对江西省昌北高校图书馆联盟2011年1至6月份虚拟参考咨询的服务人员、服务形式、服务内容、服务效率及存在问题进行调查分析研究,提出提升该联盟虚拟参考咨询服务质量的积极建议及对策。  相似文献   
76.
77.
Smart manufacturing systems (SMSs) are envisioned to contain highly automated and IT-driven production systems. To address the complexity that arises in such systems, a standard and holistic model for describing its activities and their interrelationships is needed. This paper introduces a factory design and improvement (FDI) activity model and illustrates a case study of FDI in an electromechanical component factory. In essence, FDI is a reference activity model that encompasses a range of manufacturing system activities for designing and improving a factory during its initial development and also its operational phases. The FDI model shows not only the dependency between activities and manufacturing control levels but also the pieces of information and software functions each activity relies on. We envision that the availability of these pieces of information in digital form to integrate across the software functions will increase the agility of factory design and improvement projects. Therefore, our future work lies in contributing to standards for exchanging such information.  相似文献   
78.

Background

Following childbirth, a vast number of women experience some degree of mood swings, while some experience symptoms of postpartum posttraumatic stress disorder.

Aim

Using a biopsychosocial model, the primary aim of this study was to identify predictors of posttraumatic stress disorder and its symptomatology following childbirth.

Methods

This observational, longitudinal study included 372 postpartum women. In order to explore biopsychosocial predictors, participants completed several questionnaires 3–5 days after childbirth: the Impact of Events Scale Revised, the Big Five Inventory, The Edinburgh Postnatal Depression Scale, breastfeeding practice and social and demographic factors. Six to nine weeks after childbirth, participants re-completed the questionnaires regarding psychiatric symptomatology and breastfeeding practice.

Findings

Using a multivariate level of analysis, the predictors that increased the likelihood of postpartum posttraumatic stress disorder symptomatology at the first study phase were: emergency caesarean section (odds ratio 2.48; confidence interval 1.13–5.43) and neuroticism personality trait (odds ratio 1.12; confidence interval 1.05–1.20). The predictor that increased the likelihood of posttraumatic stress disorder symptomatology at the second study phase was the baseline Impact of Events Scale Revised score (odds ratio 12.55; confidence interval 4.06–38.81). Predictors that decreased the likelihood of symptomatology at the second study phase were life in a nuclear family (odds ratio 0.27; confidence interval 0.09–0.77) and life in a city (odds ratio 0.29; confidence interval 0.09–0.94).

Conclusion

Biopsychosocial theory is applicable to postpartum psychiatric disorders. In addition to screening for depression amongst postpartum women, there is a need to include other postpartum psychiatric symptomatology screenings in routine practice.  相似文献   
79.
张文莉 《学术探索》2012,(3):124-126
强调中西艺术的融会贯通,这是闻一多的一贯主张。闻一多认为,只有时时刻刻想着我是个中国人,才能做出真正的中国的新诗,因此,在他短暂的诗歌创作生涯中,他始终把新诗的民族性建构作为旨归并长期躬耕于此,他的诗歌表现了对民族历史与文化的关注,对祖国的热爱与对祖国命运的忧虑,对人民命运的同情与对黑暗势力的控诉,在内在精神方面呈现出显著的民族性。  相似文献   
80.
This study explores the experiences of disability for a number of Taiwanese adults with a physical disability. Using a grounded theory approach, their experiences of living a life with a physical disability were gained through in-depth interviews. The resulting grounded theory ‘it is more than just the impaired body’ presents the dynamic interactions between the participants and the context in which they were living their lives and how they managed their lives within that context. With its inclusion of the cultural dimension, a holistic way of understanding the daily lives of those who experience physical disability in Taiwan is provided.  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