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   171篇
  免费   8篇
各国政治   9篇
工人农民   13篇
世界政治   18篇
外交国际关系   12篇
法律   91篇
中国共产党   1篇
中国政治   1篇
政治理论   34篇
  2023年   1篇
  2022年   1篇
  2020年   2篇
  2019年   2篇
  2018年   9篇
  2017年   4篇
  2016年   7篇
  2015年   4篇
  2014年   8篇
  2013年   20篇
  2012年   6篇
  2011年   3篇
  2010年   14篇
  2009年   10篇
  2008年   10篇
  2007年   6篇
  2006年   9篇
  2005年   6篇
  2004年   5篇
  2003年   5篇
  2002年   2篇
  2001年   4篇
  2000年   3篇
  1999年   5篇
  1998年   3篇
  1997年   1篇
  1996年   2篇
  1994年   1篇
  1993年   2篇
  1992年   2篇
  1991年   1篇
  1990年   4篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1986年   3篇
  1985年   1篇
  1984年   2篇
  1983年   2篇
  1982年   2篇
  1981年   1篇
  1980年   2篇
  1977年   1篇
排序方式: 共有179条查询结果,搜索用时 31 毫秒
21.
22.
The problem of adolescent drug use received a great deal of attention both in criminological theory and public policy. Predominant among theories was Akers' social learning theory which examined the role of learning through a process of imitation, modeling, and reinforcement. Public policy led to the development of programs such as Drug Abuse Resistance Education (DARE) that aimed to warn youths of the dangers of drug use. In line with research findings, both theory and policy gave a central role to peers in understanding adolescent drug use. Less attention was given to another important finding in the literature, that those who used drugs often perceived the drugs as solutions to problems. Using social learning theory, the role of perceptions of drug use as an effective problem solver was examined. Results indicated that a more explicit recognition of the use of drugs to deal with problems might inform both theory and policy.  相似文献   
23.
24.
Abstract: ‘European identity’ is as much a contested concept as is the role of the European Union in foreign affairs. This article combines the two concepts and introduces a third variable, ‘the Other’, in order to address the following questions: How do non‐Europeans perceive the EU on the world stage? Is a tentative identity as a mediator in foreign affairs conveyed in the EU's conduct of foreign policy? Analysing 10 newspapers, 4 television bulletins, and 830 public surveys from Australia and New Zealand in the first half of 2004, this article argues that the EU's efforts to further democracy and peace are often marginalised in Australian and New Zealand perceptions. Nevertheless, subtle traces of perceptions of the EU as a potent global actor promoting human rights and environmental sustainability and challenging unilateral US policy courses were detected.  相似文献   
25.
26.
A series of calcium phosphate standards having calcium/phosphorus (Ca/P) molar ratios of 0.50, 1.00, 1.50, and 1.67, respectively, was prepared for bulk specimen analysis using scanning electron microscopy (SEM) and energy-dispersive X-ray microanalysis (EDXA). The standards were mounted on carbon planchettes as either pure crystals or crystals embedded in epoxy resin. Ten different samples of each embedded and non-embedded standard were analyzed in a JEOL 100 CX electron microscope interfaced with a Kevex 8000 EDXA system using a lithium-drifted silicon detector and a multichannel analyzer. The Ca/P ratios were determined by calculating both net peak intensities without matrix corrections and atomic kappa-ratios using the MAGIC V computer program with ZAF correction factors for quantitative analysis. There was such extensive absorption of phosphorus X-rays in standards embedded in an epoxy matrix that the observed Ca/P ratios were statistically compatible with four different standards ranging in theoretical Ca/P ratios from 1.0 to 1.67. Although the non-embedded crystals showed a greater separation in the Ca/P ratios, both methods of preparation produced serious flaws in analysis. Direct application of the discovery of this caveat to the identification of suspected bone fragments for forensic science purposes is discussed.  相似文献   
27.
28.
29.
Within the context of the debate over the recent suspended sentence given to John Stuart Godfrey by Underwood J in the Supreme Court of Tasmania for assisting his elderly mother with her suicide, this article examines some of the more popular arguments for and against the moral acceptability of euthanasia and assisted suicide. This article considers the arguments put forward on the "difference principle" by Rachels and Nesbitt before critically examining the liberal approach to the euthanasia issue as proposed by Kuhse. It is argued that whilst Kuhse is correct to reject the difference principle, she does so for the wrong reasons. The penultimate section of the article provides an overview of the traditional moral view against killing. The final part assesses whether the arguments put forward by proponents of the liberal approach are capable of overcoming this view.  相似文献   
30.
Much research on adolescent delinquency pivots on the notion of peer influence. The peer effect that is typically employed emphasizes the transmission of behaviors and attitudes between adolescents who are directly linked. In this paper, we argue that to rely solely on those direct social ties to capture peer influence oversimplifies the realities of adolescent society. We use data from the National Longitudinal Study of Adolescent Health to show that indirect peer relations can exercise independent influences on adolescent delinquency. Adolescents actively draw on the examples of friends of friends, and even more distal peers, as they develop their repertoires of action and identity. We argue, however, that this behavior actually reflects adolescents’ ongoing struggle to impress their closest friends and to preserve their social circle. Indeed, the extent to which adolescents are willing to model the behavior of indirect contacts seems to decline as that behavior becomes more dissimilar from that of their close friends. Our findings dovetail with an account of the adolescent as a rational actor who struggles for social acceptance in a complex peer environment which offers conflicting behavioral models.
Danielle C. PayneEmail:
  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