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   152篇
  免费   11篇
各国政治   6篇
工人农民   3篇
世界政治   15篇
外交国际关系   8篇
法律   78篇
中国政治   2篇
政治理论   51篇
  2022年   1篇
  2021年   2篇
  2020年   6篇
  2019年   7篇
  2018年   10篇
  2017年   10篇
  2016年   9篇
  2015年   4篇
  2014年   9篇
  2013年   28篇
  2012年   6篇
  2011年   7篇
  2010年   7篇
  2009年   5篇
  2008年   5篇
  2007年   7篇
  2006年   8篇
  2005年   4篇
  2004年   4篇
  2003年   6篇
  2002年   5篇
  2001年   5篇
  2000年   4篇
  1987年   1篇
  1983年   1篇
  1980年   2篇
排序方式: 共有163条查询结果,搜索用时 15 毫秒
71.
The objectives of our study were to investigate the dose–response relationship of the TASER X26 discharge duration in an anesthetized swine model. Fourteen swines were anesthetized and then exposed to TASER X26 discharge for 5 sec (n = 5) or for 10 sec (n = 6). The sham control group (n = 3) was anesthetized and studied using the same protocol except TASER X26 discharges during the experiments. Hemodynamic parameters were obtained. Blood pressure and total peripheral resistance decreased significantly after TASER discharge and returned to baseline value at 15 min after 5 sec of TASER discharge but did not return to baseline values during the 30‐min observation period after 10 sec of TASER discharge. Repetitive TASER X26 discharge resulted in adverse physiologic events with a dose–response relationship related to the duration of TASER X26 discharge in an anesthetized swine model.  相似文献   
72.
Existing studies of Hong Kong’s and Singapore’s success as leading Asian international financial centers (IFCs) have largely focused on economic structural factors at the neglect of political economic contextual variables. Taking a policy subsystems approach and based on extensive field research, this article attempts to address this shortcoming by conceptualizing the “policy relations” that exist between state, industry, and other non-state actors in the two IFCs and delineating the “division of policy roles” among these actors. In the process, this article contributes toward the existing IFC literature and conceptualizes the sociopolitical relations that exist among financial sector actors.  相似文献   
73.
Abstract

Typically, sex offender programmes are evaluated using recidivism, a distal outcome measure. This paper proposes that sex offender programmes also incorporate proximal variables to evaluate treatment effectiveness. Proximal variables assess within treatment changes immediately following the intervention. To demonstrate this approach, the effectiveness of a sex offender treatment programme is evaluated using proximal variables, specifically locus of control, empathy, cognitive distortions and acceptance of responsibility. We provide the findings of this evaluation and discuss the implications of this approach. In particular, we conclude with the importance of identifying relevant treatment targets and selecting suitable proximal measures of those targets in evaluating treatment effectiveness.  相似文献   
74.
Abstract

The advent of the internet has facilitated a dramatic increase in the number of individuals accessing and possessing child pornography and a corresponding increase in referrals for assessment and treatment. Questions remain regarding whether child pornography possessors are more similar to or different from other types of sex offenders, and whether or not assessment and treatment protocols for contact and non-contact sex offenders are applied appropriately to child pornography offenders. The present study compared 50 child pornography offenders, 45 non-contact sex offenders and 101 contact child molesters. The results indicated that the three groups were more similar than different; however, child pornography offenders were distinguished by greater academic and vocational achievement, fewer childhood behaviour problems and by select relational variables. Recidivism rates were low for all groups.  相似文献   
75.
This article explores how public corporation leadership copes with a turbulent environment using political, managerial, and individual leadership elements. It is an in‐depth case study of Lee Ji‐Song, who effectively managed the politically and managerially challenging environment that resulted from the merger of two large public corporations into the Korea Land and Housing Corporation. Lee, an engineer, manager, and chief executive of a major construction company, took advantage of his political, managerial, and individual leadership capital to cope with political challenges from lawmakers and with managerial challenges such as postmerger integration management, organizational stabilization, and financial improvement. The authors suggest that an effective public corporation leader must be a skillful politician and businessperson, as public corporations often operate in an environment in which public and private values interact.  相似文献   
76.
A novel ring-substituted methamphetamine regioisomer, N,alpha,4-trimethyl phenmethylamine, was synthesized in order to study the validity of proposed structures for various mass spectrometry (MS)-derived peaks in a methamphetamine fragmentation pattern. While other research efforts have studied aspects of methamphetamine in detail, a full fragmentation study has not been reported previously. In addition to showing molecular structures represented by fragment peaks, mechanisms for selected processes are detailed. An empirically derived procedure to easily determine by simple spectral peak pattern recognition the geometry of dimethyl- or ethyl-substituted immonium ions (RRC = N+ RR) where m/z = 58 is outlined. These results are platform independent for electron ionization (EI) instruments, but have also proven to be helpful in explaining spectral peaks observed in spectra from ion trap systems. The spectrum for the synthesized methamphetamine regioisomer was accurately predicted using this methodology. While this approach is useful in some casework, the converse may be more useful: when an unexpected or unusual peak pattern arises in a spectrum, being able to analyze it to determine the structure of the molecule. This paper gives an analyst the means to begin such retro-synthetic analyses.  相似文献   
77.
78.
A new, highly fluorescent dye was synthesised using oleylamine combined with a perylene dianhydride compound. The new dye was characterised by 1H NMR, UV-vis spectroscopy and fluorescence spectroscopy as well as quantum yield. The dye was absorbed onto titanium dioxide nanoparticles for use as a fingerprint detection powder. The new fluorescent powder was applied to latent fingermarks deposited onto different non-porous surfaces and compared with commercial fluorescent powders. The powder exhibits strong fluorescence at 650-700 nm under excitation at 505 nm. On glass surfaces, the new powder gave images showing tertiary-level detail of the fingermark ridges with almost no background development. Compared with current magnetic fluorescent powders, the new powder was slightly weaker in fluorescence intensity but produced significantly less background development, resulting in good contrast between the fingermark and the substrate.  相似文献   
79.
80.
The molecular origin of DNA mutations and the mutation rates were analyzed at 14 short tandem repeat (STR) loci with samples from trio cases derived from 10 different German population samples. STR loci comprised of D2S1360, D3S1744, D4S2366, D5S2500, D6S474, D7S1517, D8S1132, D10S2325, D12S391, D18S51, D19S246, D20S480, D21S226, and D22S689. In a total of 488 meioses, 16 isolated genetic inconsistencies in 8 different STRs were observed, whereas no mutations were found at the other loci. The data of five mutations suggested the presence of silent or null alleles due to sequence variation in primer binding site. This could be confirmed for four suspected cases by the use of alternative primer sets and by DNA sequence analyses. Furthermore, this study revealed nine new allelic variants at five different loci.  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