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   50篇
  免费   2篇
各国政治   1篇
工人农民   6篇
世界政治   2篇
外交国际关系   4篇
法律   20篇
政治理论   19篇
  2022年   1篇
  2021年   1篇
  2020年   2篇
  2019年   1篇
  2017年   2篇
  2016年   6篇
  2014年   2篇
  2013年   3篇
  2012年   1篇
  2010年   3篇
  2009年   1篇
  2008年   6篇
  2007年   1篇
  2006年   3篇
  2005年   1篇
  2004年   1篇
  2002年   1篇
  2001年   1篇
  1999年   1篇
  1998年   1篇
  1997年   1篇
  1995年   2篇
  1994年   1篇
  1993年   1篇
  1992年   2篇
  1990年   1篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1982年   2篇
排序方式: 共有52条查询结果,搜索用时 15 毫秒
11.
A modified PCR method is described. We examined the conditions of commercial kits including concentration of primer, amplification cycle number and annealing and extension time to obtain even PCR products as well accurate genotype analysis. In addition, we tried to arrange the ratio of primer composition in PowerPlex® 16 system to improve the loci of high molecular and add two times of Taq Gold polymerase to decrease the extension time.The advantages of less primer method are good balance among loci, reproducibility and sensitivity.  相似文献   
12.
The nation's largest charter management organization is the Knowledge is Power Program (KIPP). KIPP schools are emblematic of the No Excuses approach to public education, a highly standardized and widely replicated charter model that features a long school day, an extended school year, selective teacher hiring, strict behavior norms, and emphasizes traditional reading and math skills. No Excuses charter schools are sometimes said to target relatively motivated high achievers at the expense of students who are more difficult to teach, including limited English proficiency (LEP) and special education (SPED) students, as well as students with low baseline achievement levels. We use applicant lotteries to evaluate the impact of KIPP Academy Lynn, a KIPP school in Lynn, Massachusetts that typifies the KIPP approach. Our analysis focuses on special needs students that may be underserved. The results show average achievement gains of 0.36 standard deviations in math and 0.12 standard deviations in reading for each year spent at KIPP Lynn, with the largest gains coming from the LEP, SPED, and low‐achievement groups. Average reading gains are driven almost entirely by SPED and LEP students, whose reading scores rise by roughly 0.35 standard deviations for each year spent at KIPP Lynn.  相似文献   
13.
This article argues that the concept of prudence can provide valuable insights into the problems of the New Public Management. Prudence, or practical wisdom, is the ability to make sound decisions under complex, ever-changeable conditions. Old-style bureaucracy severely limited the discretion of most administrators but preserved a site of true prudential judgment at the peak where discreet "mandarins" policed the boundary between politics and administration. The reforms that inaugurated New Public Management dismantled this site of prudence while simultaneously attempting, in effect, to disperse prudential judgment and action throughout the service. Though raising the problem of prudence, these reforms misconceived it as the problem of how to balance new freedoms with new controls to prevent abuse or folly. This essay argues that the introduction of market mechanisms, risk-management and cost-benefit techniques, ethics training, performance accountability, and calls to leadership were destined to fail because they misapprehended the problem of prudence.  相似文献   
14.
With the increasing spread of information technologies and their potential to filter content, some have argued that people will abandon the reading of dissenting political opinions in favor of material that is closely aligned with their own ideological position. We test this theory empirically by analyzing—both quantitatively and qualitatively—Web links among the writings of top conservative and liberal bloggers. Given our use of novel methods, we discuss in detail our sampling and data collection methodologies. We find that widely read political bloggers are much more likely to link to others who share their political views. However, we find no increase in this pattern over time. We also analyze the content of the links and find that while many of the links are based on straw-man arguments, bloggers across the political spectrum also address each others’ writing substantively, both in agreement and disagreement.  相似文献   
15.
This article is based on a survey of budget directors' views concerning control. Responsible for control on a daily basis, the budget director knows its many components first hand. Budget directors in all municipalities with populations from 100,000 to 1,000,000 received a mail questionnaire in June 1981. Of the 158 directors surveyed, 127 or 80 percent responded. The discussion which follows is organized into the five key areas covered in the survey: functions of control, time commitment and degree of difficulty in performing the control function, relationship between control and other aspects of management, current control techniques, and recent developments affecting control.  相似文献   
16.
This research examines the association between intellectual property (IP) and whitecollar crime (WCC), and identifies future research that might benefit policymakers; federal, state, and local agencies; and the general public. Research methods include a review of literature, a review of information and data in IPR violations and WCC, and inquiry in areas that directly deal with IP laws and enforcement practices, such as law enforcement agencies, IP-based industries and private law firms.  相似文献   
17.
18.
Despite the widespread attention given to identity theft, there is much confusion on how best to define and measure it. Recent attempts to measure its extent through victimization surveys or law enforcement files have varied considerably in the types of crimes included as identity theft. Some studies include credit card fraud, while others exclude it. This inconsistency in data collection has made it difficult to assess properly the extent of the crime. The current study uses data from the National Public Survey on White Collar Crime to determine the degree to which including credit card fraud as a type of identity theft affects victim profiles encompassing demographic characteristics, risky activities, and reporting decisions. Specifically, we compare victim profiles for victims of existing credit card fraud, new credit card fraud, and existing bank account fraud. Findings from our exploratory study suggest that including existing credit card fraud may obscure the fact that those who are female, black, young, and low income are disproportionately victimized by existing bank account fraud, which is the type of identity theft most financially damaging and most difficult to clear up for individuals.  相似文献   
19.
20.

This study is based on data from a three-wave telephone panel survey conducted during the 1998 governor's race in Florida. The evidence suggests that a considerable amount of issue-related learning (having to do with candidate policy stands and group endorsements) took place over the course of the general election campaign, though substantial differences were observed from one issue area to the next. Further analysis indicates that learning was especially likely to occur among voters (a) who were more knowledgeable about political affairs to start with (confirming that the so-called “knowledge gap” may be exacerbated during campaigns), (b) who scored high on a measure of advertising negativity (for one candidate but not the other), and (c) who early in the campaign, read their local newspaper less frequently. Consistent with prior research, TV news appears to have done little or nothing to boost issue-based learning among the electorate.  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