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   4482篇
  免费   99篇
各国政治   233篇
工人农民   112篇
世界政治   459篇
外交国际关系   310篇
法律   1902篇
中国政治   20篇
政治理论   1506篇
综合类   39篇
  2023年   26篇
  2021年   26篇
  2020年   50篇
  2019年   59篇
  2018年   98篇
  2017年   114篇
  2016年   153篇
  2015年   100篇
  2014年   86篇
  2013年   645篇
  2012年   124篇
  2011年   111篇
  2010年   121篇
  2009年   130篇
  2008年   120篇
  2007年   138篇
  2006年   133篇
  2005年   125篇
  2004年   121篇
  2003年   118篇
  2002年   123篇
  2001年   74篇
  2000年   92篇
  1999年   77篇
  1998年   100篇
  1997年   81篇
  1996年   44篇
  1995年   78篇
  1994年   70篇
  1993年   70篇
  1992年   75篇
  1991年   56篇
  1990年   57篇
  1989年   66篇
  1988年   66篇
  1987年   76篇
  1986年   61篇
  1985年   76篇
  1984年   67篇
  1983年   52篇
  1982年   55篇
  1981年   54篇
  1980年   43篇
  1979年   45篇
  1978年   38篇
  1977年   35篇
  1976年   26篇
  1975年   24篇
  1974年   27篇
  1973年   28篇
排序方式: 共有4581条查询结果,搜索用时 15 毫秒
161.
    
The literature on social justice, and social justice movements themselves, routinely ignore nonhuman animals as legitimate subjects of social justice. Yet, as with other social justice movements, the contemporary animal liberation movement has as its focus the elimination of institutional and systemic domination and oppression. In this paper, I explicate the philosophical and theoretical foundations of the contemporary animal rights movement, and situate it within the framework of social justice. I argue that those committed to social justice – to minimizing violence, exploitation, domination, objectification, and oppression – are equally obligated to consider the interests of all sentient beings, not only those of human beings.  相似文献   
162.
163.
    
Restoration of autopsy incisions can result in inadvertent needle stick injury to the prosector, which can be difficult to prevent even with the use of personal protective equipment such as Kevlar cut resistant gloves. We present a new technique for closure of autopsy incisions using a commonly available commercial hardware tool, a hole punch with a lever enhanced action, combined with blunt probe sewing, which results in an esthetic and leak‐proof means of restoring cadavers. This technique is especially useful in cases which may pose blood‐borne infection risks to the prosector.  相似文献   
164.
Sexual offenses represent an alarming proportion of crimes committed yearly. To address these concerns, several states, including South Carolina (SC), have enacted laws requiring sexually violent predators (SVPs) to be civilly committed to treatment. To date, no published study has examined sexual offenders recommended for treatment in SC. This study used a specially designed statewide database (SC-SVP research database) to determine which offender and offense characteristics were associated with increased likelihood of being recommended for civil commitment. Factors correlated with being more likely to be recommended included: being of a younger age at time of evaluation, prior sex convictions, having related and unrelated victims, a higher number of victims, frequent substance use, and a history of suicide attempts. Prior sex convictions, having both related and non-related victims, and a higher total number of victims align with characteristics associated with sexual recidivism. Frequent substance abuse and a history of suicide attempts do not mirror previous findings regarding sexual recidivism. These findings present new information regarding the civil commitment process of offenders being committed to the SC-SVP treatment program, characterize types of offenders committed to SC-SVP treatment program, and provide a foundation for using a computerized database in conducting sex offender research.  相似文献   
165.
    
Drowning is a diagnosis of exclusion based on circumstantial and autopsy correlation. Sugimura proposed a threshold value of 14.1 for the Drowning Index (DI), the ratio of lung and pleural fluid to spleen weight, as a surrogate marker to diagnose drowning. We questioned the use of DI in diagnosing drowning. We compared DI between three groups—drowning, mechanical asphyxia, and myocardial infarct—seen at Broward MEO from 2008 to 2009. Only 9.4% of 53 drownings exceeded the DI threshold of 14.1, while 30% of 10 mechanical asphyxias and 40% of 10 myocardial infarcts had DI >14.1. Sensitivity for the DI test was <10% and specificity 60–70%. Median DI values for all groups were <10. Mann–Whitney U‐test was not statistically significant between groups. The DI is neither sensitive nor specific and lacks any utility in the diagnosis of drowning.  相似文献   
166.
    
‘Innovation mercantilism’ is on the rise with the result: less global innovation. Policy makers should: create an Innovation Trade Agreement whereby tariffs on all innovation products are eliminated; make development aid contingent upon nations renouncing innovation mercantilist policies; empower multinational firms to fight back by providing antitrust exemptions for cooperation to resist forced technology transfer requirements; develop new multilateral own trade agreements with real measures to stop innovation mercantilism; and develop cooperative international agreements to better support innovation and R&D.  相似文献   
167.
    

Stuart M. Kaye. International Fisheries Management. Kluwer Law International, The Hague, Netherlands, 2001. 606 pp. (hard cover). $172.00

Rosalee Love. Reefscape, Joseph Henry Press, Washington D.C., 2001. 264 pp. (hard cover). $24.95

Olav Schram Stokke (ed.), Governing High Seas Fisheries: The Interplay of Global and Regional Regimes, Oxford University Press, New York, 2001. 365 pp. (hard cover). $95.00

Norman J. Vig and Michael E. Kraft (eds.). Environmental Policy: New Directions for the Twenty‐First Century. 4th ed. Congressional Quarterly Press, Washington D.C., 2000. 416 pp. (paperback). $39.95

Joseph Franke and Teresa M. Telecky. Reptiles as Pets: An Examination of the Trade in Live Reptiles in the United States. The Humane Society of the United States, Washington D.C. 2001. 146 pp. (paperback). $10  相似文献   
168.
    
A decade ago this journal reported that support for the death penalty in the United States had begun to wane. This follow‐up confirms the continuation of that trend and brings the earlier article up to date. Concern about executing the innocent and racial disparity persists amid evidence that the public is in a post‐trust era where government decisions are highly suspect.  相似文献   
169.
    
The stability of two benzisoxazole antipsychotics was determined in vitro in decomposing porcine blood inoculated with bacteria, utilizing a high‐performance liquid chromatography with ultraviolet and fluorescence detection method for drug quantitation. Stability experiments for risperidone and paliperidone were conducted at 7, 20 and 37°C for 4 days using sterile and bacterially inoculated porcine blood. The drugs were stable in sterile blood at each temperature and in inoculated blood at 7°C, but degraded significantly in inoculated blood at 20 and 37°C. Complete loss occurred within 2 days when incubated at 37°C. The benzisoxazole‐cleaved degradation products for both drugs were identified as 2‐hydroxybenzoyl‐risperidone and 2‐hydroxybenzoyl‐paliperidone utilizing liquid chromatography quadrupole‐time‐of‐flight mass spectrometry and accurate mass measurements. The degradation products have been found in postmortem case studies, including one case where risperidone and paliperidone were not detected, indicating complete conversion can occur in situ.  相似文献   
170.
    
The operation of a motor vehicle requires the integrity of sensory, motor, and intellectual faculties. Impairment of these faculties following the consumption of alcohol has been studied extensively through laboratory, closed‐course and on‐road driving, and epidemiological studies. The scientific literature was reviewed critically, with a focus on low‐to‐moderate blood alcohol concentrations (BAC ≤ 0.100%), to identify the most reliable determinants of alcohol‐impaired driving. Variables such as age, gender, driving skill, and tolerance were shown to have limited impact on impairment. It was concluded the most relevant variables are BAC and complexity of the driving task. The scientific literature provides a high degree of confidence to support the conclusion that a BAC of 0.050% impairs faculties required in the operation of a motor vehicle. Whether impairment is apparent depends upon the complexity of the driving task, which applies to both study design and actual driving.  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