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   1031篇
  免费   31篇
各国政治   82篇
工人农民   50篇
世界政治   73篇
外交国际关系   68篇
法律   507篇
中国政治   7篇
政治理论   260篇
综合类   15篇
  2021年   13篇
  2020年   13篇
  2019年   18篇
  2018年   25篇
  2017年   35篇
  2016年   40篇
  2015年   19篇
  2014年   26篇
  2013年   165篇
  2012年   26篇
  2011年   42篇
  2010年   44篇
  2009年   38篇
  2008年   39篇
  2007年   51篇
  2006年   32篇
  2005年   28篇
  2004年   30篇
  2003年   36篇
  2002年   39篇
  2001年   20篇
  2000年   27篇
  1999年   15篇
  1998年   14篇
  1997年   11篇
  1996年   8篇
  1995年   9篇
  1994年   12篇
  1993年   9篇
  1992年   8篇
  1991年   5篇
  1990年   6篇
  1989年   11篇
  1988年   12篇
  1987年   7篇
  1986年   14篇
  1985年   9篇
  1984年   5篇
  1983年   7篇
  1980年   10篇
  1979年   7篇
  1977年   7篇
  1976年   9篇
  1975年   4篇
  1974年   6篇
  1973年   4篇
  1972年   6篇
  1970年   6篇
  1966年   4篇
  1965年   4篇
排序方式: 共有1062条查询结果,搜索用时 15 毫秒
141.
142.
143.
144.
This article is designed to provide insight into methodologies that can be used to assess alternative emergency command and control systems for municipalities and law enforcement. Some potential pitfalls and errors are highlighted.  相似文献   
145.
The past 20 years of research has exposed the profound cost of intimate partner violence (IPV) in health care problems and health care dollars for victims and bystanders. As a result, professional organizations encourage clinicians to identify IPV victims and to refer them to community resources. To date there is little evidence to show the value of these efforts, and many completed studies are criticized for methodological weaknesses. IPV studies are challenging to design, and the double-blind randomized controlled trial may be an impossible standard. To move forward, funders and study committees are encouraged to reassess the standards for IPV research methodologies.  相似文献   
146.
This article focuses on the relationship between the country of birth and the ability of the individual from that country to create a sense of home, identity and belonging in other countries and cultures. What is home? Is home the place where you were born and raised, where your parents live or where they are buried? Is home the place from where you were dislocated or where you live now? What does longing for home mean? The author draws on theory to address these questions but her personal story plays a prominent part.  相似文献   
147.
148.
Postmortem diagnosis of diabetes and a diabetic coma can be difficult because of the lack of characteristic morphological findings. 1,5-Anhydroglucitol (1,5-AG), the 1-deoxy form of glucose, competes with glucose for reabsorption in the kidneys. Therefore, diabetics with a permanent hyperglycemia show significantly lower serum concentrations of 1,5-AG than non-diabetics. A liquid chromatography-mass spectrometric method for the determination of 1,5-AG in serum and postmortem blood was developed and validated according to international guidelines. Linearity was given between 1μg/ml and 50μg/ml. Recovery rates ranged between 70.8% and 89.8%, the limit of quantification of the procedure was 0.20μg/ml, limit of quantification was 0.55μg/ml. Serum of 199 diabetics and 116 non-diabetics and femoral blood of 31 diabetic and 27 non-diabetic deceased was measured. Average concentrations were significantly (p<0.001) higher in non-diabetics compared to diabetics ante and postmortem. Seven of the diabetics may have died because of a hyperglycemic coma indicated by a sum formula of Traub>450mg/dl. 1,5-AG average concentrations in these deceased were not significantly different to diabetics which did not die because of a diabetic coma. Concentrations of 1,5-AG give a hint for not well controlled diabetes antemortem and postmortem and can be assumed as an additional and alternative information postmortem to the measurement of HbA1c or fructosamine.  相似文献   
149.
Tolperisone (Mydocalm) is a centrally acting muscle relaxant with few sedative side effects that is used for the treatment of chronic pain conditions. We describe three cases of suicidal tolperisone poisoning in three healthy young subjects in the years 2006, 2008 and 2009. In all cases, macroscopic and microscopic autopsy findings did not reveal the cause of death. Systematic toxicological analysis (STA) including immunological tests, screening for volatile substances and blood, urine and gastric content screening by GC-MS and HPLC-DAD demonstrated the presence of tolperisone in all cases. In addition to tolperisone, only the analgesics paracetamol (acetaminophen), ibuprofen and naproxen could be detected. The blood ethanol concentrations were all lower than 0.10 g/kg. Tolperisone was extracted by liquid-liquid extraction using n-chlorobutane as the extraction solvent. The quantification was performed by GC-NPD analysis of blood, urine and gastric content. Tolperisone concentrations of 7.0 mg/l, 14 mg/l and 19 mg/l were found in the blood of the deceased. In the absence of other autopsy findings, the deaths in these three cases were finally explained as a result of lethal tolperisone ingestion. To the best of our knowledge, these three cases are the first reported cases of suicidal tolperisone poisonings.  相似文献   
150.
This paper focuses on the importance of family member closeness as a protective factor against domestic abuse. We explore the link between long-lasting relations within the family and intra-familial violence perpetrated against women in Latino households in South Florida. We use data from an Inter-generational Transmission of Drug Use between Latina Mothers and Daughters (ITDMD) study. The study includes data on family relations and domestic abuse. We estimate a series of multivariate regressions to obtain the probability of abuse against women, the types of abuse inflicted and the relationship with the abusers. Our results indicate that among abused women, the effects of long-lasting relations within the family differ depending on the type of relationship between the abuser and the victim and the degree of closeness the victim feels towards other family members. Given these findings, there is a need to further study family relations and abuse in Latino households.  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