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   2032篇
  免费   66篇
各国政治   189篇
工人农民   90篇
世界政治   251篇
外交国际关系   170篇
法律   815篇
中国政治   26篇
政治理论   547篇
综合类   10篇
  2023年   9篇
  2022年   6篇
  2021年   7篇
  2020年   28篇
  2019年   37篇
  2018年   51篇
  2017年   61篇
  2016年   63篇
  2015年   41篇
  2014年   60篇
  2013年   370篇
  2012年   39篇
  2011年   64篇
  2010年   49篇
  2009年   73篇
  2008年   60篇
  2007年   67篇
  2006年   63篇
  2005年   48篇
  2004年   82篇
  2003年   56篇
  2002年   52篇
  2001年   39篇
  2000年   42篇
  1999年   41篇
  1998年   45篇
  1997年   43篇
  1996年   33篇
  1995年   38篇
  1994年   37篇
  1993年   46篇
  1992年   26篇
  1991年   24篇
  1990年   29篇
  1989年   25篇
  1988年   29篇
  1987年   27篇
  1986年   20篇
  1985年   24篇
  1984年   19篇
  1983年   16篇
  1982年   10篇
  1981年   15篇
  1980年   20篇
  1979年   8篇
  1977年   10篇
  1976年   9篇
  1975年   4篇
  1974年   4篇
  1973年   7篇
排序方式: 共有2098条查询结果,搜索用时 15 毫秒
131.
Panel surveys interview the same individuals more than once over a period of time. Attrition from the survey occurs when those individuals die, refuse to be interviewed again, or, for some other reason, cannot be contacted. If the original sample was representative of a specific population, then survey analysis may provide misleading conclusions about changes in population characteristics over time if these individuals leave the sample in a nonrandom way. Therefore, it is important to identify the characteristics of individuals who leave the survey for various reasons. This article explores the extent of and reasons for attrition in the New Beneficiary Survey (NBS) between the first interview in 1982 and the followup interview in 1991. Presented is a comparison of the characteristics of survivors (the reinterviewed sample) with attriters (those in the sample not reinterviewed) from the retired-worker and disabled-worker samples. The article explores a variety of potential determinants of attrition to the probability of attrition. These determinants are examined alone and in a multivariate framework. The NBS sample population is drawn from and linked to Social Security Administrative records, which have exact matched data on mortality as a cause of attrition. These data do not depend on survey-reported reasons for attrition; hence, it allows the examination of the differences in the patterns and predictors of attrition due to death and due to other reasons, primarily, the refusal to be interviewed. Attrition due to death must be identified precisely because misidentification of death as refusal to be interviewed may lead researchers to infer more selective attrition than might be the case. Different patterns of attrition are evident in the comparison of attrition levels and the determinants of attrition for the retired and disabled samples, both composed of persons with relatively high mortality risk. In particular, individuals' health, health insurance coverage, and level of education have different impacts on their likelihood of attrition. In general, it appears that refusal to be interviewed is more evenly spread across populations and characteristics than is death. The analysis shows that attrition due to death and attrition due to refusal are quite different processes, even though health conditions play a role in both processes. The results suggest that because attrition patterns (including death) may be quite different across population samples, sample-specific attrition patterns must be analyzed over the lifetime of any panel study. Long-term studies of panel attrition are necessary to provide researchers analyzing the data with information on potential biases due to nonrandom attrition.  相似文献   
132.
ABSTRACT

The issue of poor performance of the Russian federal bureaucracy is addressed by linking performance to type of official, through analysis of biographical data on deputy ministers and division (departament) heads in five federal ministries since 2012, supplemented by internet searches on behavior, particularly of a corrupt nature. Education, previous career experience, and recruitment, including its timing relative to superiors and subordinates, are analyzed, in order to determine whether officials behave primarily as members of patrimonial teams, as members of problem-solving organizations, as self-serving individuals, as the instruments of capture by commercial organizations, or as servants of bureaucratic agency interests. The data do not strongly support any one conclusion, but problem-solving officials have the strongest presence.  相似文献   
133.
ABSTRACT

In this article I consider Donald Trump as an “antisemantic” president, and link antisemanticism to broader forms of populism. Drawing on Stuart Hall’s analysis of Thatcherism, I explore the political and discursive domains as intrinsically linked in the Trumpian moment. Second, I turn to a theory of the antisemantic, showing its difference from the Orwellian universe. Where the Orwellian model depends on the inversion of meanings, the Trumpian paradigm (“Truth isn’t truth”) attacks the foundations of meaning itself. In the Trumpian age the internet also acts as a dark multiplier, thinning out meaning through its distortions and profusion. As counterpart to these patterns, I show how the antisemantic rests on certain symbolic fixities, especially around boundaries and the “uber” symbol of the wall. I end with some notes on how to reconstruct a sense of accountability in meaning, and to think of boundaries that are transitive and generative rather than singular and walled.  相似文献   
134.
135.
Forensic hospital records of 39 severely mentally ill mothers adjudicated Not Guilty by Reason of Insanity for filicide (child murder by parents) were analyzed to describe characteristics preceding this tragedy and to suggest prevention strategies. Almost three-quarters of the mothers (72%) had previous mental health treatment. Over two thirds (69%) of the mothers were experiencing auditory hallucinations, most frequently command hallucinations, and half (49%) were depressed at the time of the offense. Over one third (38%) of the filicides occurred during pregnancy or the postpartum period, and many had a history of postpartum psychosis. Almost three-quarters (72%) of the mothers had experienced considerable developmental stressors, such as death of their own mother or incest. Maternal motives for filicide were predominantly "altruistic" (meaning murder out of love) or "acutely psychotic" (occurring in the throes of psychosis, without rational motive). Psychiatrists should perform careful risk assessments for filicide in mothers with mental illnesses.  相似文献   
136.
This paper describes the first reported fatality from right atrial perforation complicating the insertion of a screw-in right atrial pacemaker electrode. The patient was an 84-year-old woman with the sick sinus syndrome who also had hepatic cirrhosis.  相似文献   
137.
Propylene glycol (PG), a widely used solvent and lubricant, is thought to have low toxicity when ingested. Three cases were identified where PG, either alone or in combination with other chemical agents, contributed to death. The decedent in whom PG was the sole agent was a 32-year-old schizophrenic man with cardiomegaly and renal impairment. The blood PG concentration was 4410 mg/L at least 9.5 h following ingestion.  相似文献   
138.
139.
A community sample of 610 adults were grouped into those who reported no sexual abuse experience, others who reported noncoercive sexual contact with an individual that was at most 4 years older, and those who reported more severe sexual abuse. The first two groups did not differ from each other on current social support, trauma-specific symptomatology, and somatic complaints whereas the more severe sexual abuse group reported more problems on these dimensions. Further analyses suggested that of the two variables, coercion was more closely associated with problematic outcome than was the existence of an age difference.  相似文献   
140.
This study examines the prevalence of trauma, posttraumatic stress disorder (PTSD), and dissociative symptoms in adolescents. The sample consisted of 76 females and 76 males, between the ages of 12 and 18, referred to the Child Guidance Clinic of the Superior Court of the District of Columbia for a psychological evaluation. Two sets of analyses were conducted. One set included the entire sample; the second set excluded those individuals whose listed referral problem included only being a victim of abuse. Results of the study suggest a high prevalence of trauma in both genders; however, females had significantly higher rates than those reported in males. Similarly, female adolescents demonstrated significantly higher prevalence rates of PTSD symptoms compared with their male counterparts in the entire sample and showed a trend toward significance in the analysis of the subsample. There was a low prevalence of dissociative symptoms across both genders.  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