全文获取类型
收费全文 | 721篇 |
免费 | 42篇 |
专业分类
各国政治 | 6篇 |
工人农民 | 29篇 |
世界政治 | 7篇 |
外交国际关系 | 29篇 |
法律 | 374篇 |
中国共产党 | 22篇 |
中国政治 | 84篇 |
政治理论 | 32篇 |
综合类 | 180篇 |
出版年
2023年 | 8篇 |
2022年 | 5篇 |
2021年 | 10篇 |
2020年 | 10篇 |
2019年 | 11篇 |
2018年 | 13篇 |
2017年 | 19篇 |
2016年 | 32篇 |
2015年 | 13篇 |
2014年 | 32篇 |
2013年 | 46篇 |
2012年 | 53篇 |
2011年 | 48篇 |
2010年 | 40篇 |
2009年 | 39篇 |
2008年 | 43篇 |
2007年 | 44篇 |
2006年 | 50篇 |
2005年 | 46篇 |
2004年 | 54篇 |
2003年 | 42篇 |
2002年 | 35篇 |
2001年 | 26篇 |
2000年 | 11篇 |
1999年 | 6篇 |
1998年 | 1篇 |
1997年 | 3篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1991年 | 3篇 |
1989年 | 4篇 |
1988年 | 1篇 |
1987年 | 3篇 |
1986年 | 3篇 |
1983年 | 1篇 |
排序方式: 共有763条查询结果,搜索用时 0 毫秒
311.
论WTO争端解决的合理执行期仲裁——兼论中美知识产权案的执行对策 总被引:3,自引:0,他引:3
2009年1月12日和3月20日,WTO的DSB先后通过裁定中国有关立法或行政措施违反WTO有关协定的争端解决报告。根据WTO规则,我国应立即执行有关裁定。如立即执行不可能,则可要求一个合理执行期。如与有关争端方商定合理执行期未成,则根据DSU有关规定采用仲裁裁决该合理执行期。在概述WTO仲裁程序的基础上,着重讨论仲裁合理执行期的实践及其存在问题,从而提出我国应对合理执行期的若干建议。 相似文献
312.
C. Gehrig D. Kummer V. Castella 《Forensic Science International: Genetics Supplement Series》2009,2(1):85-86
The aim of this study was to evaluate the forensic protocol recently developed by Qiagen for the QIAsymphony automated DNA extraction platform. Samples containing low amounts of DNA were specifically considered, since they represent the majority of samples processed in our laboratory. The analysis of simulated blood and saliva traces showed that the highest DNA yields were obtained with the maximal elution volume available for the forensic protocol, that is 200 μl. Resulting DNA extracts were too diluted for successful DNA profiling and required a concentration. This additional step is time consuming and potentially increases inversion and contamination risks. The 200 μl DNA extracts were concentrated to 25 μl, and the DNA recovery estimated with real-time PCR as well as with the percentage of SGM Plus alleles detected. Results using our manual protocol, based on the QIAamp DNA mini kit, and the automated protocol were comparable. Further tests will be conducted to determine more precisely DNA recovery, contamination risk and PCR inhibitors removal, once a definitive procedure, allowing the concentration of DNA extracts from low yield samples, will be available for the QIAsymphony. 相似文献
313.
晚清时期东北报业评述 总被引:2,自引:0,他引:2
19世纪末,东北近代报业艰难起步。与全国大部分地区比较,晚清时期东北报业发展居于中流。日俄战争前,为东北报业的发端;从日俄战争结束,到民国成立,则为东北报业的发展时期。在十余年的发展过程中,晚清东北报业呈现官报发达、民报活跃、新闻控制严酷等特点,而正是晚清东北社会向近代化的变迁,促成了报业的发展。 相似文献
314.
文件制成时间的检验多年来一直是国际法庭科学的热点问题。上世纪 30年代以来 ,各国法庭科学工作者利用各种现代分析仪器对墨水字迹、圆珠笔油墨字迹形成时间进行广泛研究 ,取得了许多研究成果。我国对墨水字迹书写时间检验技术的研究起步较晚 ,始于 5 0年代 ,经过三十年的努力 ,与国外先进水平之间的差距逐步缩小。但是 ,在许多基层办案部门 ,受技术水平、仪器设备等条件的限制 ,开展该项业务还缺乏科学规范性。 相似文献
315.
316.
老年人精神赡养方法探微 总被引:3,自引:0,他引:3
王泽淮 《长沙民政职业技术学院学报》2004,11(2):10-12
随着老年人口,特别是高龄老年人口的增多,对老年人的精神赡养问题应引起人们的高度重视。为了提高老年人的精神生活质量,本文试图从探访老年人的角度提供一些对老年人精神赡养的方法和技巧。 相似文献
317.
Keith W. Proctor M.S. ; William J. Kelch D.V.M. Ph.D. ; John C.New Jr. D.V.M. M.P.H. 《Journal of forensic sciences》2009,54(6):1433-1437
Abstract: Because 36.1% of U.S. households have dogs, the time of death (TOD) of dogs at crime scenes can be useful to forensic investigators. However, there are few published studies based on postmortem changes in dogs. This study, conducted indoors in still air at approximately room temperature, monitored the postmortem reduction in rectal, liver, brain, and aural temperatures in 16 dogs for 32 h after death. Graphs of temperature reduction were prepared to estimate the TOD of dogs within the first 32 h postmortem. Sex, body mass, and hair coat density did not affect the rate of body temperature reduction, but increased body weight and volume slowed it. Rectal temperature was the most convenient, reasonable site for measuring body temperature. Vitreous humor potassium ion concentration [K+ ] was measured in both eyes at c. 1.5 and 7 h after death. Both eyes had the same [K+ ] when measured simultaneously, and [K+ ] increased after death. 相似文献
318.
Sandra Cornetta M.D. Annalisa Addante M.D. Ph.D. Fiorenza Zotti Ph.D. Alessandro Dell’Erba M.D. Ph.D. 《Journal of forensic sciences》2009,54(5):1149-1151
Abstract: The authors report a case of a transvestite found murdered near his automobile with several lacerated contused wounds to the face and cranial fractures. Autopsy revealed that the cause of death was a serious head trauma with subdural and subarachnoidal hemorrhages. In order to identify the crime weapon, a scanning electron microscopy (SEM) was used which revealed metallic residue on the skin fragments with the same molecular composition of the car paint. As for survival time, antibody anti‐beta‐amyloid precursor protein (APP) was applied to brain fragments and brainstem tissue, allowing for axonal varicosities (which form 2 to 3 h following death) to be observed under the optic microscope. So, by using SEM we understood that the fatal cranial‐encephalic lesions were the result of the victim’s head being repeatedly struck against the car door while anti‐betaAPP led to the understanding that the time elapsed between injury and death was less than 2 to 3 h. 相似文献
319.
浅谈食品安全犯罪侦查中的几个问题 总被引:1,自引:0,他引:1
刑法是保护食品安全的最后一道防线,有效地侦查对于筑牢这道防线意义重大。食品安全犯罪案件的侦查中公安机关侦查部门应及时介入,把握侦查的有利时机。在对行政机关移送案件进行侦查的同时依托经侦基础工作,拓宽食品安全犯罪情报信息来源,主动出击,精确打击食品安全犯罪。在收购、加工、贮存和运输环节发生的严重危害食品安全的行为可以按食品安全犯罪案件立案侦查。 相似文献
320.
Robert Nash Parker William R. Smith D. Randall Smith Jackson Toby 《Journal of Quantitative Criminology》1991,7(1):3-17
Trends in the rate of victimizations of juveniles in three settings-schools, homes, and streets/parks-are examined monthly during the period 1974–1981. The relationship between in-school victimization rates and those occurring outside of school are analyzed with multivariate ARMA models informed by previous research on school victimization (Gottfredson and Gottfredson, 1985) and an importation perspective on the source of crime and victimization in institutions such as schools. Results indicate that the overall in-school victimization rate remained relatively stable during this period but that victimization rates of juveniles in other settings had significant effects on in-school victimizations. This suggests that underlying causes of victimization in general are important determinants of victimization in schools. These results are limited, however, as we examine these sources of victimization only indirectly via relationships among the different victimization rates in dynamic models and by the aggregate nature of the monthly data from the National Crime Survey. 相似文献