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   1895篇
  免费   102篇
各国政治   167篇
工人农民   64篇
世界政治   194篇
外交国际关系   162篇
法律   762篇
中国政治   22篇
政治理论   604篇
综合类   22篇
  2023年   10篇
  2022年   6篇
  2021年   16篇
  2020年   33篇
  2019年   59篇
  2018年   55篇
  2017年   74篇
  2016年   98篇
  2015年   56篇
  2014年   70篇
  2013年   335篇
  2012年   59篇
  2011年   53篇
  2010年   57篇
  2009年   66篇
  2008年   67篇
  2007年   78篇
  2006年   79篇
  2005年   72篇
  2004年   53篇
  2003年   70篇
  2002年   66篇
  2001年   34篇
  2000年   49篇
  1999年   34篇
  1998年   48篇
  1997年   28篇
  1996年   32篇
  1995年   31篇
  1994年   22篇
  1993年   16篇
  1992年   21篇
  1991年   7篇
  1990年   20篇
  1989年   6篇
  1988年   23篇
  1987年   15篇
  1986年   5篇
  1984年   8篇
  1983年   7篇
  1982年   7篇
  1981年   7篇
  1980年   5篇
  1979年   10篇
  1978年   3篇
  1977年   7篇
  1975年   3篇
  1970年   3篇
  1965年   2篇
  1964年   2篇
排序方式: 共有1997条查询结果,搜索用时 15 毫秒
311.
One method that has been touted to help end mass incarceration is using intermediate sanctions. While intermediate sanctions often present as attractive options, there is evidence that as practiced, these sanctions often result in net widening. One of the most common forms of intermediate sanctions are drug courts, which are often viewed as progressive alternatives to locking up people with substance abuse problems. However, along with the dangers of net widening, scholars have shown that many people admitted to drug courts do not seem to have substance abuse problems and could benefit from lesser criminal justice interventions. In the current study, we analyzed intake data from a drug court to determine: (1) what charge(s) drug participants had and (2) how they became involved with the criminal justice system. Among important findings were that a large number of drug court participants were arrested for the possession of one drug only (often marijuana) and that more than half of participants came to the attention of the criminal justice system through a traffic stop rather than through repeated encounters with the criminal justice system.  相似文献   
312.
Models of lawyering in separation and divorce disputes are evolving to emphasize interdisciplinary collaboration, problem solving, alternative dispute resolution, and changes in legal education that reflect these changes in practice. At the University of Denver's Resource Center for Separating and Divorcing Families (Center), supervised law and mental health graduate students worked as a team to provide assessment and service planning, mediation, therapy, and agreement drafting to parents. Evaluation results showed client satisfaction, and that students acquired new knowledge, skills, and values in line with a collaborative, problem‐solving orientation. Strengths and weaknesses of the model are considered.  相似文献   
313.
A compositionally simplified analogue of a latent fingermark was created by combining single representatives of each major component of a natural fingermark. Further modified analogues were also produced each having one component removed. The aim of this study was to investigate the intermolecular interactions that occurred within these analogue samples using Fourier Transform Infrared (FT-IR) Microspectroscopy. FT-IR microspectroscopy showed that the absence of squalene and cholesterol significantly restricted the interactions between the other organic constituents within the analogue samples. Investigating the intermolecular interactions of organic compounds within a simplified analogue solution could indicate corresponding interactions that occur within natural fingermarks. These potential interactions could go on to be the target of further investigation of latent fingermark chemistry, and ultimately contribute to a better understanding of the aging processes and degradation mechanisms that take place post-deposition.  相似文献   
314.
The enthusiasm for artificial intelligence (AI) as a source of solutions to problems is not new. In law, from the early 1980s until at least the early 2000s, considerable work was done on developing ‘legal expert systems.’ As the DataLex project, we participated in those developments, through research and publications, commercial and non-commercial systems, and teaching students application development. This paper commences with a brief account of that work to situate our perspective.The main aim of this paper is an assessment of what might be of value from the experience of the DataLex Project to contemporary use of ‘AI and law’ by free legal advice services, who must necessarily work within funding and other constraints in developing and sustaining such systems. We draw fifteen conclusions from this experience, which we consider are relevant to development of systems for free legal advice services. The desired result, we argue, is the development of integrated legal decision-support systems, not ‘expert systems’ or ‘robot lawyers’. We compare our insights with the approach of the leading recent text in the field, and with a critical review of the field over twenty-five years. We conclude that the approach taken by the DataLex Project, and now applied to free legal advice services, remains consistent with leading work in field of AI and law.The paper concludes with brief suggestions of what are the most desirable improvements to tools and platforms to enable development of free legal advice systems. The objectives of free access to legal information services have much in common with those of free legal advice services. The information resources that free access to law providers (including LIIs) can provide will often be those that free legal advice services will need to use to develop and sustain free legal advisory systems. There is therefore strong potential for valuable collaborations between these two types of services providers.  相似文献   
315.
To generate high-quality deliberations, juries should be diverse in terms of not only demographics but also viewpoints. Using data from the Survey of Texas Adults (n = 1380), we examine whether existing processes select for individuals who represent the population on a variety of viewpoint characteristics, particularly whether the process of forming juries selects for people who are more independent-minded versus authority-minded. We find, on average, that those who believe in the importance of speaking English, are less compassionate, support Biblical literalism, and express more concern about the community effects of wrongdoing are more likely to have been former jurors than to not have served. Death penalty support is also modestly predictive of jury membership. Non-jurors rate their neighborhoods as cleaner than do former jurors. Results point to composition effects in the summonsing process and to the possibility that some types of people exempt themselves from this civic obligation.  相似文献   
316.
This article summarizes a discussion by a panel of leading experts on Soviet energy analyzing the consequences of the accident at the Chernobyl' nuclear plant in the Ukraine on April 26, 1986.

The near-term economic costs associated with clean-up, relocation, and compensating for losses to electricity supplies are significant but manageable. The longer-term effects will focus on likely modifications in Soviet strategies for the nuclear industry, which may shift emphasis back towards conventional fuels and conservation.

The political consequences were managed fairly well by the leadership. Consistent with Secretary Gorbachev's policy of glasnost' (openness) more information has been available on this event than was the case in previous analogous situations. Journal of Economic Literature, Classification Numbers: 027, 124, 723.  相似文献   
317.
The proceedings of a panel of American specialists devoted to the recent economic reform are summarized. The panelists noted that the most substantial changes to date have accompanied efforts to restructure the decisionmaking hierarchy—in particular, a recentralization of authority through the creation of biuros and state committees and legislation on individual economic activity. Changes in the systems of economic planning and incentives, on the other hand, have been minor, suggesting a continuing debate over the extent to which price reform and various economic incentives should be implemented. Journal of Economic Literature, Classification Numbers: 052, 113, 124.  相似文献   
318.
There are few published reports of allocation methodologies for contamination at complex sites not associated with the traditional Superfund landfill scenario (i.e., based on waste in records). Allocation can be especially difficult when the contamination is derived from neighboring facilities. Such was the situation in a lawsuit brought by Solvent Chemical (Solvent) in the United States District Court for the Western District of New York (New York v. Solvent Chem. Co., Inc., 685 F. Supp. 2d 357 (W.D.N.Y)). Solvent had filed a cost-recovery and contribution claim against Olin and DuPont, neighboring industrial facilities, to recover costs associated with groundwater and soil remediation. Solvent alleged that the contamination found in groundwater recovery wells on the Solvent site was predominately due to releases from the former adjacent Dupont chlorinated solvent production facility and from Olin's neighboring former chlorinated benzene production facility. However, complicating matters for Solvent was the former production of chlorinated benzenes at their site. Solvent needed a method of determining the source sites for chlorinated benzenes detected in remediation wells other than concentration since multiple facilities could have been the source. Among the methods employed by Solvent to differentiate the source-site allocation was the fact that perchlorate was indirectly generated at Olin's hypochlorite plant but not at the Solvent site. Therefore, the presence of perchlorate could be used as a tracer of contaminant transport from the Olin operations. The judge's ruling found that Solvent's use of perchlorate as a tracer was compelling evidence regarding the source of chlorinated benzenes and agreed to Solvent's suggested allocation.  相似文献   
319.
Abstract

Despite the widespread acceptance that follow-up or maintenance sessions are an important part of the change process for those who have completed offender rehabilitation programmes, there have been few attempts to articulate the basis upon which such sessions might be developed. This paper reviews the current theoretical and empirical literature relating to maintenance programmes, concluding that whilst there are a number of theories which might be relevant to the design of effective maintenance programmes, there is almost no empirical basis from which to make any assessment of their likely value or effectiveness.  相似文献   
320.
Difficulties can arise when screening dark casework items for blood, a poor contrast between blood and the background can mean stains are not always evident. Typical indirect searching methods can be time consuming and may result in potentially important bloodstains being missed. Luminol, fluorescein, hydrogen peroxide, ultraviolet light and infrared photography were tested in an effort to find a rapid and efficient blood search tool for direct application to dark surfaces. Methods were compared in their sensitivity, specificity, ability to work on various surface types and their effect on DNA extraction and typing. Along with experimental results, the ease of use, costs and the health and safety considerations were also compared. Hydrogen peroxide was determined to be the most effective method. However, where blood was likely to be dilute, luminol was proposed due its greater sensitivity.  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