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   1367篇
  免费   55篇
各国政治   78篇
工人农民   181篇
世界政治   100篇
外交国际关系   48篇
法律   701篇
中国政治   18篇
政治理论   290篇
综合类   6篇
  2023年   14篇
  2022年   8篇
  2021年   8篇
  2020年   35篇
  2019年   36篇
  2018年   66篇
  2017年   57篇
  2016年   56篇
  2015年   40篇
  2014年   42篇
  2013年   193篇
  2012年   38篇
  2011年   44篇
  2010年   32篇
  2009年   49篇
  2008年   49篇
  2007年   52篇
  2006年   47篇
  2005年   49篇
  2004年   45篇
  2003年   38篇
  2002年   38篇
  2001年   22篇
  2000年   26篇
  1999年   21篇
  1998年   13篇
  1997年   17篇
  1996年   17篇
  1995年   15篇
  1994年   23篇
  1993年   11篇
  1992年   15篇
  1991年   20篇
  1990年   15篇
  1989年   13篇
  1988年   9篇
  1987年   6篇
  1986年   18篇
  1985年   19篇
  1984年   10篇
  1983年   16篇
  1982年   13篇
  1981年   11篇
  1980年   10篇
  1979年   6篇
  1978年   7篇
  1977年   7篇
  1975年   4篇
  1974年   5篇
  1971年   4篇
排序方式: 共有1422条查询结果,搜索用时 15 毫秒
91.
92.
93.
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   
94.
The recent decline, indeed perhaps dismantling, of managed care is sometimes treated as both consequence and cause of the political reempowerment of medical providers, whose professional dominance managed care had challenged. Drawing evidence from Round III of the Community Tracking Study of the Center for Studying Health System Change, this article reviews the politics of four "arenas" of managed care regulation--prompt payment, mandated benefits, external appeals, and financial solvency--and concludes that the power of providers is contingent on patterns of coalition and conflict that differ across the discrete arenas. The zero-sum connotations of the "de" and "re" empowerment of providers under managed care fail to capture the subtlety of providers' search for fresh cultural, economic, and political resources in shifting policy contexts.  相似文献   
95.
A curious ownership structure is found in Northern Europe—foundations that own and operate business companies. The foundations are non-profit entities, they have no members and no owners, and they cannot be dissolved. In many cases, these entities control more than 50% of the votes in successful international companies. Obviously, this structure completely blocks the market for corporate control, but it also violates other basic principles of agency theory and corporate finance. Nevertheless, we present evidence that a sample of foundation-owned companies listed on the Copenhagen Stock Exchange are at least as efficient as other listed companies in terms of risk adjusted stock returns, accounting returns and Tobins Q. Thus, they question whether profit-seeking ownership is a necessary condition for competitive enterprise.JEL Classification: D23, G34, L31  相似文献   
96.
Currently in Australia anti-choice protesters' right to freedom of speech and freedom to protest is privileged over a woman's right to privacy and to access a health service safely, free from harassment, intimidation and obstruction. This article considers how this situation is played out daily at one Victorian abortion-providing clinic. The Fertility Control Clinic was thrown into the spotlight after the murder of its security guard by an anti-choice crusader in July 2001. Australian common law appears not to offer women protection from anti-choice protesters. By contrast, United States and Canadian "bubble" legislation sits comfortably with key constitutional rights. It would be a useful development if Australian governments passed legislation to ensure the rights, wellbeing and safety of Australian women accessing health services. Such legislation would be another step away from the misogynistic and androcentric values once central to our legislative framework.  相似文献   
97.
If male workers categorize different groups of women coworkers and, subsequently, treat them differently, the experiences of women from one of these groups would not be indicative of the experiences of women from another group. When this different treatment involves hostile environment sexual harassment of one group, but not the other, then the law must recognize the possibility of "selective sexual harassment." Without this understanding of the nuances of the workplace dynamics, a court could mistake the women of the unharassed group as representing "reasonable women" and the women of the harassed group as simply oversensitive. This paper draws on empirical data to demonstrate such a situation and advocates for a version of the "reasonable victim" standard to facilitate a closer analysis of hostile environment sexual harassment suits.  相似文献   
98.
An unusual fatality secondary to oxycodone in a child is reported. A 2-year-old female child was conveyed to a local hospital after exhibiting signs of rubbing of the mouth and staggering. A hospital toxicological immunoassay screen for drugs of abuse and tricyclic antidepressants was performed on a urine sample and reported as negative. She was discharged and found unresponsive the next morning. She was conveyed to a second hospital in full cardiopulmonary arrest and despite resuscitative efforts, was pronounced dead upon arrival. An autopsy was performed and postmortem specimens were submitted and screened for drugs using mainly chromatographic techniques. Quantitation was achieved by gas chromatography with nitrogen phosphorus detection. Confirmation was performed by gas chromatography/mass spectrometry. Oxycodone was the only drug detected in the following concentrations: heart blood, 1.36 mg/L; gastric contents, 7.33 mg in 33 mL (222.34 mg/L); liver, 0.2 mg/kg; and urine, 47.23 mg/L (47,230 ng/mL). In addition, immunoassay testing of the urine was positive for the opiate class of drugs. This case report demonstrates an unusual cause of death in a young child with emphasis on potential limitation in hospital urine screening tests and the importance of complete forensic toxicological testing in all child deaths.  相似文献   
99.
Pulmonary thromboembolism is an often fatal complication of venous thrombosis. Any component or combination of the components composing Virchow's triad (venostasis, hypercoagulability, and endothelial damage) increases the propensity for a thrombophilic state. Hypercoagulable states may be inherited or acquired. While the etiology in many cases may be evident either on physical examination or on evaluation of the decedent's medical history, this is often not the case. We conducted a retrospective study of cases presenting to the Jefferson County Coroner/Medical Examiner's Office in Birmingham, Alabama, who were given a diagnosis of pulmonary embolism. A search of cases within the past 23 years yielded 81 cases. An underlying cause was determined in 70 cases (86%). The remaining 11 (14%) cases had no identifiable cause. We believe that a number of these cases may represent an underlying thrombophilic disorder. Since these disorders may be of an inherited or acquired nature, the determination of an etiology may be relevant to the decedent's family. Postmortem blood analyses may in selected cases be useful and appropriate for the detection of some of these disorders. However, such analyses are not practical in all cases, with each case having to be evaluated on its own merits.  相似文献   
100.
Consistent with previous research, almost half of a sample of 41 pet-owning battered women reported that their partners had threatened or actually harmed their pets, and over a fourth reported that concern for their pets had affected their decisions about leaving or staying with the batterer. Differences between rural and urban women were not significant, although higher proportions of rural than urban women reported that their partners had threatened or harmed their pets and that concern for their pets had affected their decisions. For the sample as a whole, logistic regression analyses showed that women whose pets had been threatened or harmed were significantly more likely to report that concern for their pets had affected their decisions about leaving or staying. The findings suggest that service providers should inquire about battered women's concern for their pets and should include arrangements for animals in safety planning.  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