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   5320篇
  免费   286篇
  国内免费   1篇
各国政治   358篇
工人农民   26篇
世界政治   846篇
外交国际关系   771篇
法律   2013篇
中国共产党   312篇
中国政治   567篇
政治理论   350篇
综合类   364篇
  2023年   28篇
  2022年   30篇
  2021年   18篇
  2020年   28篇
  2019年   40篇
  2018年   51篇
  2016年   32篇
  2015年   37篇
  2014年   164篇
  2013年   113篇
  2012年   305篇
  2011年   320篇
  2010年   203篇
  2009年   154篇
  2008年   238篇
  2007年   269篇
  2006年   300篇
  2005年   242篇
  2004年   249篇
  2003年   250篇
  2002年   242篇
  2001年   182篇
  2000年   146篇
  1999年   116篇
  1998年   87篇
  1997年   87篇
  1996年   84篇
  1995年   96篇
  1994年   103篇
  1993年   66篇
  1992年   57篇
  1991年   86篇
  1990年   62篇
  1989年   68篇
  1988年   104篇
  1987年   84篇
  1986年   82篇
  1985年   99篇
  1984年   98篇
  1983年   94篇
  1982年   64篇
  1981年   65篇
  1980年   82篇
  1979年   44篇
  1973年   17篇
  1964年   21篇
  1962年   19篇
  1960年   15篇
  1959年   15篇
  1957年   17篇
排序方式: 共有5607条查询结果,搜索用时 265 毫秒
901.
902.
A prospective study of 161 victims of falls from height is reported. The aim was to determine the interest of systematic qualitative and quantitative toxicological analysis in such fatalities. The primary cause of death was suicide (84.5%), followed by accidents (7%) and homicide (1%). In the remaining 7.5%, cause of death was undetermined. In the suicides, there was evidence of psychotropic medicines in 57% of the observations, with a much higher proportion of benzodiazepines and antidepressants in women than in men. Quantitative toxicologic analysis showed overdosing on medication in 16 suicide victims, with toxic levels in 11 of these. Systematic qualitative and quantitative toxicologic analysis made a significant contribution to the diagnosis of suicide by revealing either an unknown psychiatric treatment or a toxic level.  相似文献   
903.
The authors describe a case of sellar fracture followed by sudden death. The victim was involved in a wrangle. The autopsy revealed facial damage and sellar fracture and no evidence of cerebral damage, except for a mild subarachnoid hemorrhage in the left parietotemporal regions and undersurface of both frontal lobes. Sellar fracture is a rare and severe entity, associated with serious complications, which is frequently diagnosed postmortem. In any case, death is rarely a direct consequence of the sellar fracture itself and is usually considered to be the result of associated cerebral trauma. This case prompted us to screen the literature on sellar fracture to gain a better understanding of the mechanism of death.  相似文献   
904.
Medicinal products are associated with risks as well as potential therapeutic benefits. This is reflected by the legal requirements for patient information on drug therapy which can be differentiated into general product information, regulated by pharmaceutical (i. e. product safety) law, and individual patient information on the treatment with the product, which is subject to medical malpractice law. The physician's duty to inform the patient comprises therapeutic information as well as information required for informed consent. Therapeutic information intends to empower the patient to comply with the requirements of treatment and to protect him/her against preventable danger and risk; it is part of the medical treatment, aimed at the individual patient and his/her personal situation. Information required for informed consent enables the patient to a self-determined decision on the treatment offered; it can be divided into information on the course of treatment and risk information. Product information and treatment information complement each other; the former should be the basis of individual information on the concrete treatment, provided by the physician in a mandatory oral conversation with the patient. Product information cannot replace the physician's individual information about the treatment.  相似文献   
905.
It is a widely voiced notion that juvenile delinquency and victimization co-occur extensively in the youth population, in particular because delinquent youth engage in risky activities. But theory from the bullying and traumatic stress literatures suggests that there may be additional pathways by which delinquency and victimization are connected. This analysis looks for possible subtypes of delinquents and victims consistent with such pathways. Using the Developmental Victimization Survey, a national sample of 1,000 youth aged 10 to 17 were interviewed over the phone. Support emerges for three distinct types of delinquent-victims, who are termed bully-victims, delinquent sex/maltreatment- victims, and property delinquent-victims. There is also evidence for substantial groups of youth who are primarily delinquent but not seriously victimized, as well as youth who are primarily victimized but not delinquent.  相似文献   
906.
Forgotten heroes     
Ephron D  Childress S 《Newsweek》2007,149(10):28-37
  相似文献   
907.
We have analysed 13 autosomal STR loci in four endogamous tribal populations from two eastern states (Orissa and Nagaland) of India. The Gadaba, Kuvi Khond and Lotha Naga populations have not been analysed for microsatellite genetic variation previously. The allele frequencies for all loci are within the range observed in the geographical region and racial background, though some alleles showed greater variation. Departures from the Hardy-Weinberg equilibrium were tested by three methods and two loci (THO1 and TPOX) showed significant departures for all measures in Gadaba and Lotha Naga populations. The exclusion probability and discrimination probability were high for all analysed loci in all populations. There is no evidence for association of alleles among the STR loci studied. This allele frequency information will be useful for forensic, paternity and population genetic studies.  相似文献   
908.
The allelic distribution of 15 short tandem repeat (STR) loci included in the AmpFl STR Identifiler kit was examined in 100 Changdu Tibetan and 118 Naqu Tibetan unrelated individuals living in the Tibet Province, PR China. The distribution of these observed genotypes was not significantly different from the expected distribution according to Hardy-Weinberg equilibrium.  相似文献   
909.
理论学派的法律是一个在认知上并不可靠的领域。它所采用的方法和视角已经受到当下政治和观念的冲击,并且因缺乏理论与实践的互动而显得摇摆不定。在本文中,我将阐述这一看似荒谬的结论,即:随着学术界与司法界不断改变对行政法形态和价值的塑造,法律将通过不断的去法化和日趋经  相似文献   
910.
This study identified factors associated with emotional distress in 109 African American women with HIV. The relationship of personal factors (demographic, social conflict, social support, and spirituality), health-related factors (perception of health, physical and mental health problems, and years diagnosed), and cognitive/coping responses (stigma, worry, and emotion focused coping) on depressive symptoms and mood state was examined. Younger age, more social conflict, less social support, lower perception of health, and more HIV worry were associated with higher depressive symptom scores. Variables most often affecting various mood states included personal factors (public housing, unemployment, and social conflict) and worry about having HIV worry.  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