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   46篇
  免费   3篇
世界政治   1篇
法律   29篇
中国政治   6篇
政治理论   1篇
综合类   12篇
  2023年   1篇
  2021年   2篇
  2020年   1篇
  2018年   1篇
  2017年   1篇
  2016年   2篇
  2014年   2篇
  2013年   7篇
  2012年   1篇
  2011年   7篇
  2010年   3篇
  2009年   4篇
  2008年   4篇
  2007年   1篇
  2005年   1篇
  2004年   2篇
  2003年   4篇
  2002年   3篇
  2001年   2篇
排序方式: 共有49条查询结果,搜索用时 15 毫秒
41.
国外的研究机构和学者在对银行保险开展理论研究的同时,从风险分散效应、财富效应等多方面对银行保险进行了实证研究。由于不同研究所选择的样本期和研究方法不同,结论也不尽相同,但大部分实证研究对于银行保险的正面效应给予了支持。  相似文献   
42.
依据警察实战手枪射击枪战特点,把警察实战射击场景归纳为"受训者主体动作"、"实战场景中介"、"目标客体"这三个决定着警察实战胜负的基本技术元素,以此为基础来定义三元组合训练模式的概念,确定三元组合训练模式的目标,分析三元组合训练模式的内容和实施。  相似文献   
43.
In shooting scene reconstructions, risk assessment of the situation can be important for the legal system. Shooting accuracy and precision, and thus risk assessment, might be correlated with the shooter's physical movement and experience. The hit patterns of inexperienced and experienced shooters, while shooting stationary (10 shots) and in running motion (10 shots) with a semi‐automatic pistol, were compared visually (with confidence ellipses) and statistically. The results show a significant difference in precision (circumference of the hit patterns) between stationary shots and shots fired in motion for both inexperienced and experienced shooters. The decrease in precision for all shooters was significantly larger in the y‐direction than in the x‐direction. The precision of the experienced shooters is overall better than that of the inexperienced shooters. No significant change in accuracy (shift in the hit pattern center) between stationary shots and shots fired in motion can be seen for all shooters.  相似文献   
44.
Abstract

Precipitators are personal attributes enhancing a person's likelihood of becoming criminally victimized. The present experiment focuses on walking style synchrony as a nonverbal determinant of differential perceptions. Findings suggest that walking styles associated with a lack of interactional synchrony - a lack of organized movement, a lack of ‘wholeness’, a lack of flowing motion - result in higher ratings of robbery potential and in lower ratings of perceived self-confidence of a target relative to more synchronous walking styles. Analyses also suggest that high criminal involvement is associated with more easily construing situations as ‘opportunistic’. Some implications for assertiveness and self-defense training programs are discussed.  相似文献   
45.
为提高公安院校学生手枪射击的技能,以适应公安实践的需要,训练中可将体育教学中的"时间量"训练法运用进去,着重进行掏枪中的时间量训练、上膛与瞄准中的时间量训练、瞄准与击发中的时间量训练和"二快一中"的时间量训练.  相似文献   
46.
目的建立超声辅助离子液体-分散液液微萃取-高效液相色谱串联质谱法(high performance liquid chromatography-tandem spectrometry,HPLC-MS/MS)测定全血中卡马西平(carbamazepine,CBZ)的方法。方法经筛选后以1-丁基-3-甲基咪唑六氟磷酸盐(1-butyl-3-methymidazolium hexafluoro-phosphate,[Bmim][PF6])为萃取剂,在空白血液中添加卡马西平和内标物双氢卡马西平(10,11-dihydrocarbamazepine,CBZ-DiH),通过超声辅助离子液体对其萃取后,采用ZORBAX Eclipse Plus C18色谱柱分离,流动相A为含0.1%甲酸、10mmol/L乙酸铵的水,流动相B为混合有机溶剂(乙腈‥甲醇=2‥3,体积比),流速1mL/min,采用电喷雾离子源正离子模式(ESI+),多反应监测模式(MRM)进行检测。结果血液中卡马西平的线性范围为8.00~300.00ng/mL,R2大于0.995,最低检出限为3.00ng/mL,最低定量限为8.00ng/mL,提取回收率大于80%,日内和日间精密度均小于20%。采用本方法从实际案件的血液样品中检出卡马西平,浓度为2.71μg/mL。结论本研究建立的全血中卡马西平的检测方法,具有环境友好、快速、富集效果好、灵敏度高、有机溶剂消耗小的优点,可应用于卡马西平相关案件的法医学鉴定。  相似文献   
47.
李洪成  彭颖 《政法学刊》2003,20(4):77-79
对于制式枪弹痕迹的研究已有很多,但实际工作中对于非制式枪弹痕迹诸元的分析可依据的相关资料不多,现利用微积分法对其检验与分析,从而更好对侦察、破案发挥有利线索及证据作用。  相似文献   
48.
Abstract: The collection efficiency of two widely used gunshot residue (GSR) collection techniques—carbon‐coated adhesive stubs and alcohol swabs—has been compared by counting the number of characteristic GSR particles collected from the firing hand of a shooter after firing one round. Samples were analyzed with both scanning electron microscopy and energy dispersive X‐rays by an experienced GSR analyst, and the number of particles on each sample containing Pb, Ba, and Sb counted. The adhesive stubs showed a greater collection efficiency as all 24 samples gave positive results for GSR particles whereas the swabs gave only positive results for half of the 24 samples. Results showed a statistically significant collection efficiency for the stub collection method and likely reasons for this are considered.  相似文献   
49.
目的结合现场勘查提取和实验研究,探讨了几种提取射击残留物的不同方法。方法采用富集浓缩、颗粒收集等方法。结果运用上述方法提取了附着在玻璃、汽车、塑料和织物上弹孔周围的射击残留物。结论收到良好的效果,大大提高了射击残留物提取率和检出率。  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