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   921篇
  免费   28篇
各国政治   47篇
工人农民   129篇
世界政治   58篇
外交国际关系   46篇
法律   429篇
中国政治   17篇
政治理论   218篇
综合类   5篇
  2023年   8篇
  2022年   3篇
  2021年   6篇
  2020年   13篇
  2019年   14篇
  2018年   29篇
  2017年   24篇
  2016年   33篇
  2015年   16篇
  2014年   27篇
  2013年   129篇
  2012年   30篇
  2011年   26篇
  2010年   33篇
  2009年   31篇
  2008年   25篇
  2007年   27篇
  2006年   35篇
  2005年   17篇
  2004年   27篇
  2003年   27篇
  2002年   42篇
  2001年   20篇
  2000年   22篇
  1999年   20篇
  1998年   15篇
  1997年   15篇
  1996年   13篇
  1995年   19篇
  1994年   8篇
  1993年   14篇
  1992年   19篇
  1991年   11篇
  1990年   15篇
  1989年   15篇
  1988年   12篇
  1987年   9篇
  1986年   9篇
  1985年   12篇
  1984年   9篇
  1983年   8篇
  1982年   9篇
  1981年   9篇
  1980年   6篇
  1979年   5篇
  1978年   3篇
  1977年   5篇
  1976年   5篇
  1975年   4篇
  1971年   4篇
排序方式: 共有949条查询结果,搜索用时 15 毫秒
171.
Researching in contexts affected by armed conflict presents many challenges beyond those normally encountered by social scientists. Focusing on these special difficulties has, in the past, often obstructed the task of understanding the methods that are applicable to situations of armed conflict. This paper aims to suggest a means of rectification. First, it introduces some of the particular issues that relate to field research under conditions of armed conflict and, second, it suggests a possible strategic approach to mitigating these. Overall, it is argued that a creative combination of different methods and techniques, broadly termed 'the composite approach', represents the most effective way of dealing with the challenges that working in a conflict-affected situation presents.  相似文献   
172.
Despite the apparent virtues of UN sanctions in terms of legitimacy and universality, attention in recent years has focused on their questionable achievements and adverse consequences. In particular, the cost of imposing sanctions is unevenly spread, while comprehensive measures harm the civilian population in the target and spare those responsible for the offending policies. This article discusses the merits of UN sanctions in the context of the membership and practice of the Security Council and looks closely at flaws in sanctions programmes and in their administration. Experience suggests careful review of alternative means of pressure as well as reform of existing procedures.  相似文献   
173.
174.
175.
This project describes application of an evidenced-based, trauma-informed treatment framework, Attachment, Regulation and Competency (ARC), with complexly traumatized youth in residential treatment. The processes of implementing the ARC model into clinical and milieu programming at two residential treatment programs are described. Particular attention is paid to system-level processes and strategies for embedding ARC in a sustainable manner. Pilot data demonstrated a significant relation between use of ARC and reductions in PTSD symptoms, externalizing and internalizing behaviors, and the frequency of restraints used across programs. Preliminary findings contribute to an emerging empirical basis for the ARC model and are supportive of its clinical utility as a practice in the residential context. Next steps include: a) expanding the study findings by conducting controlled efficacy research, b) examining system level variables as mediators of change, and c) describing the full operation stage of implementation of the ARC framework.  相似文献   
176.
Despite the increase in the number of females incarcerated, there is a paucity of research concerning female life-sentenced inmates in the United States. Using a nationally representative data set containing the largest known sample of this population, the present research examines the pre-incarceration traumatic experiences of female life-sentenced inmates. The results indicate that these women are more likely to experience traumatic events, in particular abuse, than either male life-sentenced inmates or female inmates in general. Logistic regression analyses reveal a significant association between abuse and a life sentence in both gender-specific models.  相似文献   
177.
Parental substance abuse is a major factor in families experiencing foster care placement, yet little is known about the potential of screening in determining risk or identifying subpopulations for which elevated risk occurs. One Midwestern state recently implemented screening. This research uses information gathered as part of the screen's implementation to conduct a latent class analysis. The research was extended to provide a detailed examination of differences in child and family characteristics across classes, and to compare the screen results with caseworker impressions. Three distinct typologies emerged, with the high-risk and moderate-risk designations comprising only one quarter of the cases.  相似文献   
178.
Brain, liver, rectal and environmental temperatures were continuously monitored under controlled conditions, in 117 forensic fatalities, for up to 60 h after death. Cases were studied either naked (63%) or covered with two blankets (37%). Bodies were classified into fat and thin groups. Statistical analysis and curve-fitting of the data yielded the average triple-exponential formulae for each body site and each body group. The effects of covering of the torso and body parameters such as weight, height, surface area and 'cooling size factor' (Z) on postmortem cooling are assessed and discussed. Results show that covering of the torso has a significant influence on the rate of postmortem cooling, however, there is no good correlation between the body variables and the cooling rate.  相似文献   
179.
The temperatures of three body sites, namely, the brain, liver and the rectum as well as the temperature of the environment were continuously monitored, every 5-10 min, in 117 forensic cases commencing soon after death and in most cases, within 45 min postmortem. The body temperature at the moment of death was empirically determined by a computer-based extrapolation method. Thus, temperature data for the first 3h of each body site were fitted to single-exponential equations and the fitted curve was extrapolated backwards to obtain the intercept on the Y-axis (the temperature axis). The effect of body temperature at the moment of death on postmortem cooling rate is examined and factors influencing body temperature at death are discussed. Forensic fatalities associated with hyper and hypothermia are reviewed briefly.  相似文献   
180.
School districts increasingly rely on weighted student funding (WSF), yet there is little research on this allocation model. This study collects more than 70 measures on each of 19 districts using WSF in 2018 for a landscape analysis of formula features and implementation practices. While districts report common reasons for adopting WSF (equity, flexibility, and transparency), we find no standard WSF model. Homegrown formulas and nonformula features and exemptions reflecting local context are the norms, resulting in substantial differences. Nearly all districts continue to budget with average salaries (likely limiting equity) but grant principals flexibility on staffing, stipends, and contracts.  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