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   1165篇
  免费   61篇
  国内免费   13篇
管理学   26篇
民族学   13篇
人口学   36篇
丛书文集   97篇
理论方法论   68篇
综合类   795篇
社会学   96篇
统计学   108篇
  2024年   1篇
  2023年   14篇
  2022年   7篇
  2021年   14篇
  2020年   30篇
  2019年   20篇
  2018年   32篇
  2017年   33篇
  2016年   28篇
  2015年   25篇
  2014年   53篇
  2013年   78篇
  2012年   52篇
  2011年   62篇
  2010年   44篇
  2009年   49篇
  2008年   60篇
  2007年   64篇
  2006年   82篇
  2005年   70篇
  2004年   63篇
  2003年   74篇
  2002年   66篇
  2001年   47篇
  2000年   45篇
  1999年   19篇
  1998年   15篇
  1997年   19篇
  1996年   14篇
  1995年   15篇
  1994年   5篇
  1993年   11篇
  1992年   9篇
  1991年   5篇
  1990年   5篇
  1989年   3篇
  1988年   1篇
  1987年   3篇
  1985年   2篇
排序方式: 共有1239条查询结果,搜索用时 15 毫秒
31.
有关黄河河源的概念,古代各种史学、地理、以及宗教文献都有相关记载。早期文献中提出的重源潜流的概念,也为塑造河源空间概念留下了发挥余地。及至唐朝,各种类书、笔记、野史关于位于境外的河源的著述沿用了上述文献中已有的地理知识,并融入了佛教世界观的空间概念以及唐代实地考察的纪录,逐渐构成了河源这一多元化的空间想象。本文探讨了不同知识框架对唐代河源记载的影响,以及在几幅现存宋代地图上所反映出的相关影响。这类文献资料有助于我们理解中古地理知识的深化与演变,以及后代地图上展示河源的更丰富的地图表现形式。  相似文献   
32.
33.
Clinical phase II trials in oncology are conducted to determine whether the activity of a new anticancer treatment is promising enough to merit further investigation. Two‐stage designs are commonly used for this situation to allow for early termination. Designs proposed in the literature so far have the common drawback that the sample sizes for the two stages have to be specified in the protocol and have to be adhered to strictly during the course of the trial. As a consequence, designs that allow a higher extent of flexibility are desirable. In this article, we propose a new adaptive method that allows an arbitrary modification of the sample size of the second stage using the results of the interim analysis or external information while controlling the type I error rate. If the sample size is not changed during the trial, the proposed design shows very similar characteristics to the optimal two‐stage design proposed by Chang et al. (Biometrics 1987; 43:865–874). However, the new design allows the use of mid‐course information for the planning of the second stage, thus meeting practical requirements when performing clinical phase II trials in oncology. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
34.
This article is about ‘coming out’ and the process of disclosure of queer migrants within their transnational families. Despite debates about the decreasing relevance of coming out in contemporary western societies, we argue that the process of coming out continues to be a central mode of belonging and identity construction for queers in the context of transnational migration. Interviews with migrants from Poland, Russia and Turkey in Germany on their coming out experiences show that people rely on a variety of boundaries, i.e. gender, class and ethnicity, to construct a desired way of life. Theoretically, these insights indicate the need to reframe post-structuralist theories on power, most prominently advanced by Pierre Bourdieu and Michel Foucault, from an intersectional perspective. The findings in this paper pinpoint to the challenges of transnational social life queer migrants are confronted with through empirical illustrations of perceptions of differences and ambiguities between immigration and emigration contexts. Furthermore, we advocate that sexuality is a crucial dimension of migration processes determining self-definition in relation to people and places, which makes their stories of coming out always also stories of ‘coming home’.  相似文献   
35.
辛亥革命前夕,武汉地区的各革命组织为配合反清大业,发动了形式多样的革命宣传活动。经过长期的宣传,广泛发动了民众,争取并掌握了强有力的武装力量。辛亥起义之所以能在武昌打响第一枪并取得胜利,武汉地区的革命舆论宣传在其中起到了催生的作用。  相似文献   
36.
Youth aging out of foster care are at high risk for homelessness. This research explains how and why homelessness occurs among youth with serious mental health struggles after aging out of residential and transitional living programmes. Using a longitudinal constructivist grounded theory design, we analyse 20 in‐depth interviews exploring youth's transition experiences and perceptions of transition success within 4 months of emancipation and at 6 and 12 months postemancipation. Monthly 15‐min check‐ins prevented attrition. A three‐phase transition process was observed driven by participant desires and actions to cultivate psychological home through establishing physical home alone away from social networks. Pre‐emancipation, the promise of home was privacy and opportunity for self‐redefinition. Shortly after emancipation, home became a physical and social space to be, a valuable resource to share and a demonstration of personal transition success. However, later in the year postemancipation, maintaining physical home proves nearly impossible given the risk context. Findings speak to how and why youth aging out appear overly self‐reliant upon emancipation. Cultivating a psychological sense of home has practice implications for child welfare providers who aim to prepare youth to live independently postemancipation.  相似文献   
37.
俄国农民外出打工与城市化进程   总被引:1,自引:0,他引:1  
城市化的实质是农业人口向城市集中的过程。俄国城市化水平取决于农民迁移的方向和规模,农民外出打工和转入城市等级问题是理解俄国城市化的关键所在。俄国农民向城市迁移的进程缓慢的原因很多:以牺牲经济发展为代价的身份证制度严格限制了所有人的迁移,尤其限制了农民的迁移;村社制度通过连环保义务有力地约束了农民的出行,农民必须服从村社的监督;农民在经济上和血缘上与农村保持着天然的联系,一般将外出打工视为权宜之计;外出打工既冲击了村社的宗法制度,又有强化农民经济、延缓农民分化的作用。  相似文献   
38.
This article will consider the current development of an emerging contract culture for the delivery of social services and its impact on disabled people in China. The discussion is based on an original qualitative study in Shanghai. The past 30 years have seen dramatic changes in China, which in parts have led to improvements in the lives of disabled people. The China Disabled Persons’ Federation (CDPF) became a key player in delivering these changes with the government. However, the CDPF is being criticized by disabled people for being too bureaucratic and not being effective enough in its delivery of services. One of its responses is to work with newly emerging not-for-profit organizations (NPOs) of and for disabled people. The CDPF has now begun to contract the delivery of some services to such NPOs. It is hoped that this may improve their effectiveness but the development of a contract culture in the delivery of services for disabled people may also be seen to pose a threat.  相似文献   
39.
The majority of children and young people removed from the care of their parents by the state of Victoria, Australia, reside in foster or kinship care. These children have experienced a broad range of adverse conditions and are up to 4 times more likely to experience problems with mental health than their mainstream peers. This paper draws on the perspectives of foster and kinship carers, describing the disconnection between their role as mental health advocates and their interest in early intervention in a field which is dominated by crisis and the historic marginalisation of foster and kinship carers. Thirty‐one foster and kinship carers across greater metropolitan Melbourne, Australia, contributed to this study through interviews and focus groups. Participants demonstrated a practical understanding of mental health and an ability to identify a range of conditions that have an adverse impact on the mental health of children and young people in their care. The paper concludes that there is a lack of systemic support and even a range of barriers that affect the capacity of foster and kinship carers to promote the mental health and well‐being of the children and young people in their care.  相似文献   
40.
试论中华民族多元一体格局发展的阶段划分   总被引:3,自引:0,他引:3  
本文通过解析多元一体格局的内涵及其演变,探寻多元一体格局发展的轨迹,将中华民族多元一体格局的发展划分为四个阶段.从中看出,多元一体格局、中华民族(中国境内)、统一多民族中国三者之间虽然范畴不同,却三位一体,多元一体格局本身的形成、稳定与危机,同中华民族、中国统一多民族国家的命运息息相关.  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