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   2568篇
  免费   72篇
管理学   222篇
民族学   20篇
人口学   240篇
丛书文集   12篇
理论方法论   260篇
现状及发展   1篇
综合类   14篇
社会学   1658篇
统计学   213篇
  2023年   42篇
  2022年   8篇
  2021年   20篇
  2020年   42篇
  2019年   46篇
  2018年   76篇
  2017年   87篇
  2016年   64篇
  2015年   56篇
  2014年   91篇
  2013年   1048篇
  2012年   70篇
  2011年   91篇
  2010年   52篇
  2009年   40篇
  2008年   65篇
  2007年   42篇
  2006年   50篇
  2005年   40篇
  2004年   33篇
  2003年   30篇
  2002年   41篇
  2001年   32篇
  2000年   29篇
  1999年   25篇
  1998年   20篇
  1997年   13篇
  1996年   24篇
  1995年   26篇
  1994年   27篇
  1993年   16篇
  1992年   19篇
  1991年   25篇
  1990年   22篇
  1989年   16篇
  1988年   12篇
  1987年   13篇
  1986年   9篇
  1985年   19篇
  1984年   11篇
  1983年   14篇
  1982年   16篇
  1981年   19篇
  1980年   15篇
  1979年   14篇
  1978年   11篇
  1977年   6篇
  1976年   11篇
  1975年   9篇
  1974年   6篇
排序方式: 共有2640条查询结果,搜索用时 15 毫秒
41.
Schools at the P-12 level increasingly face crises related to school shootings, violence, and other tragedies. Understanding the communication challenges schools face is paramount to assisting schools with communication before, during, and after crisis events. The current study focuses on the challenges created by media interest in such crises and the strategies implemented to overcome these challenges and provide responsible information to stakeholders. Interviews conducted with 21 school crisis teams at the P-12 level revealed that sensationalism, seeking alternative routes to information, and framing were key challenges in working with the media. In light of these challenges, administrators focused on creating media plans, building relationships with the media, being accurate but guarded, and communicating reassurance and reunification. Implications are discussed for school districts nationally.  相似文献   
42.
Emergency departments (EDs) are an important health care setting for the identification of elder abuse (EA). Our objective was to develop an ED-based tool to identify EA. The initial tool included a brief cognitive assessment, questions to detect multiple domains of EA, and a physical examination. Refinement of the tool was based on input from clinical experts and nurse and patient feedback. The revised tool, which included 15 questions about EA, was then tested in an academic ED. We calculated the inter-rater reliability, sensitivity, and specificity of individual EA questions. Among ED patients age≥65 (N = 259), 17 (7%) screened positive for suspicion of EA. We identified a combination of six questions that cover the included domains of EA, demonstrated good or excellent inter-rater reliability, and had a sensitivity and specificity of 94% (95% confidence interval (CI) 71–100%) and 90% (95% CI 85–93%), respectively. These results inform a proposed screening tool for multisite validation testing.  相似文献   
43.
The article highlights the ongoing relevance of W.E.B. Du Bois for the global analysis of race and class. Engaging scholarly debates that have ensued within the educational subfields of critical race theory (CRT) and (revolutionary) critical pedagogy, the article explores how a deeper engagement with Du Bois’s ideas contributes theoretically and methodologically to these two subfields. Of particular focus is Du Bois’s conceptualization of a ‘guiding hundredth,’ which he forwarded as a corrective to his ideas of a ‘talented tenth.’ The article also offers a case study analysis of the film Sounds of a New Hope, which documents a hip hop exposure program to the Philippines. The case study draws upon Du Bois’s ‘guiding hundredth’ for a twenty-first century context as a Filipino American cultural worker utilizes hip hop to articulate, analyze, and alter the lived experiences for Filipino/a Americans in a global diaspora.  相似文献   
44.
45.
Engaging non-conventional gatekeepers such as the police presents both promises and perils. Although studies have relied on police data for researching suicide and other sensitive topics in Africa, there is a paucity of literature that explores or reflects on police gatekeeping and its research implications. This paper presents authors’ reflections on police gatekeeping in a qualitative suicide study in Accra, Ghana. The main observation is that the process was double-edged. On the one hand, it led to field delays and costs, (mis)apprehensions and positionality problems, and trust building challenges. On the other hand, it vouched for research(er) credibility, provided therapeutic openings, and facilitated the viability of research with the suicide bereaved. Sensitivity to research context, sensitising the police, and reinforcing ‘therapeutic-research discourse’ with participants, are recommended means for aligning participants’ goals to research goals and for achieving therapeutic disclosures.  相似文献   
46.
ABSTRACT

This paper will argue that 3D digital animation, unlike its 2D and stop-motion counterparts, currently lacks recognisable self-reflexive aesthetic devices through which the trace of animators’ labour can be made visible. It will open with a brief history of how animation has previously shown its workings; from the pencil-wielding hand of Émile Cohl to the opening seconds of South Park, plus the intentional and unintentional smears and multiples visible on animation cells. These devices will then be discussed in relation to Marx’s analysis of the commodity in Capital Vol. 1, and how the process of fetishisation is momentarily disrupted by imperfections in the object which have been caused by production errors. These faults reconnect the object to its producer through the trace of (imperfect) labour which remains visible on the surface. In animation, similar (albeit consciously made) ‘errors’ connect the perceptive viewer directly to the work of 2D or stop-motion animators. This paper will argue the need for an equivalent to emerge in 3D digital animation, as well as highlighting some contemporary animators testing and subverting the limits of 3D and sketching some possible ways these might encourage further formal innovations.  相似文献   
47.
48.
In clinical trials, missing data commonly arise through nonadherence to the randomized treatment or to study procedure. For trials in which recurrent event endpoints are of interests, conventional analyses using the proportional intensity model or the count model assume that the data are missing at random, which cannot be tested using the observed data alone. Thus, sensitivity analyses are recommended. We implement the control‐based multiple imputation as sensitivity analyses for the recurrent event data. We model the recurrent event using a piecewise exponential proportional intensity model with frailty and sample the parameters from the posterior distribution. We impute the number of events after dropped out and correct the variance estimation using a bootstrap procedure. We apply the method to an application of sitagliptin study.  相似文献   
49.
50.
Our study aims at describing mortality among reported elder abuse experiences in rural Malaysia. This is a population-based cohort study with a multistage cluster sampling method. Older adults in Kuala Pilah (n = 1,927) were interviewed from November 2013 to May 2014. Mortality was traced after 2 years using the National Registration Department database. Overall, 139 (7.2%) respondents died. Fifteen (9.6%) abuse victims died compared to 124 (7.0%) not abused. Mortality was highest with financial abuse (13%), followed by psychological abuse (10.8%). There was a dose-response relationship between mortality and clustering of abuse: 7%, 7.7%, and 14.0% for no abuse, one type, and two types or more, respectively. Among abuse victims, 40% of deaths had ill-defined causes, 33% were respiratory-related, and 27% had cardiovascular and metabolic origin. Results suggest a link between abuse and mortality. Death proportions varied according to abuse subtypes and gender.  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