全文获取类型
收费全文 | 794篇 |
免费 | 27篇 |
专业分类
各国政治 | 37篇 |
工人农民 | 58篇 |
世界政治 | 91篇 |
外交国际关系 | 62篇 |
法律 | 359篇 |
中国政治 | 5篇 |
政治理论 | 202篇 |
综合类 | 7篇 |
出版年
2023年 | 2篇 |
2022年 | 6篇 |
2021年 | 5篇 |
2020年 | 35篇 |
2019年 | 24篇 |
2018年 | 31篇 |
2017年 | 28篇 |
2016年 | 23篇 |
2015年 | 35篇 |
2014年 | 24篇 |
2013年 | 125篇 |
2012年 | 21篇 |
2011年 | 22篇 |
2010年 | 31篇 |
2009年 | 27篇 |
2008年 | 22篇 |
2007年 | 17篇 |
2006年 | 24篇 |
2005年 | 27篇 |
2004年 | 25篇 |
2003年 | 23篇 |
2002年 | 15篇 |
2001年 | 20篇 |
2000年 | 31篇 |
1999年 | 16篇 |
1998年 | 18篇 |
1997年 | 14篇 |
1996年 | 8篇 |
1995年 | 9篇 |
1994年 | 9篇 |
1993年 | 9篇 |
1992年 | 7篇 |
1991年 | 5篇 |
1990年 | 7篇 |
1989年 | 12篇 |
1988年 | 10篇 |
1987年 | 8篇 |
1986年 | 5篇 |
1985年 | 4篇 |
1984年 | 8篇 |
1983年 | 5篇 |
1982年 | 4篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 4篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1969年 | 2篇 |
排序方式: 共有821条查询结果,搜索用时 31 毫秒
171.
172.
173.
174.
Welmoet B. Van Kammen Ph.D. in art history Rolf Loeber Ph.D. in Clinical Psychology Magda Stouthamer-Loeber Ph.D. in Clinical Psychology 《Journal of youth and adolescence》1991,20(4):399-413
The paper presents lifetime and six-month prevalence of substance use by 1st, 4th, and 7th graders (N=2573). Smoking and alcohol consumption was surprisingly high even for 1st graders. The use of developmentally more advanced substances, such as marijuana, was associated with the use of substances that typically emerge earlier, such as beer. Significantly more of the multiple substance users in the 1st and 4th grade were already engaged in a variety of conduct problems and delinquent acts than were either single users or nonusers. The findings show that substance use, even at Grades 1 and 4, is an indicator of boys who commit a wide variety of problem behaviors. For the 7th graders, the use of marijuana was especially associated with the commission of more serious delinquent acts. Multiple substance use reported by the 7th graders also signified a higher frequency and volume of use. The results of the study are related to a developmental conceptualization of conduct problems, delinquency and substance use.Research interests: antisocial behavior and substance use.Research interests: the development of antisocial behavior and substance use; familial processes leading to deviant behavior; the prediction of delinquency.Research interests: development of concealing antisocial behaviors and processes that affect such development. 相似文献
175.
This paper shows that political institutions matter in explaining defaults on external and domestic debt obligations. We explore a large number of political and macroeconomic variables using a non-parametric technique to predict safety from default. The advantage of this technique is that it is able to identify patterns in the data that are not captured in standard probit analysis. We find that political factors matter, and do so in different ways for democratic and non-democratic regimes, and for domestic and external debt. In democracies, a parliamentary system or sufficient checks and balances almost guarantee the absence of default on external debt when economic fundamentals or liquidity are sufficiently strong. In dictatorships, high stability and tenure play a similar role for default on domestic debt. 相似文献
176.
177.
Dana Van Der Merwe 《International Review of Law, Computers & Technology》1999,13(3):303-315
This paper contends that copyright is a product of the invention of print. Before that time, writings were seen as part of the common heritage of humanity and if someone copied a book by hand they deserved the right to own the copy. The digitalization of not only print, but also intellectual products such as music, graphics and video has caused problems more deep-seated than many copyright lawyers would admit to. In fact, a paradigm shift has occurred with information at the core. The older paradigm comes from the world of Descartes and Newton and focuses on material things. The legal system of that era correspondingly focused on material things, making it impossible to own, possess or have any other real right in incorporeals. To cover intellectual property a special subsystem of law was designed which is now starting to show the strain. It is argued that information ages quickly and by over-protecting it one loses the value of the asset. Power and wealth will come from transmitting and adding value to information. In this regard personal rights might be more valuable than real or intellectual property rights, unless the latter adapts to change more rapidly. 相似文献
178.
Tonya B. Van Deinse Gary S. Cuddeback Amy Blank Wilson Stacey E. Burgin 《American Journal of Criminal Justice》2018,43(2):267-277
As part of a larger study of probation workload and workforce challenges in one southeastern state, this study reports the results from a statewide survey of probation officers’ experiences supervising probationers with mental illness. A total of 615 officers responded to closed- and open-ended questions about the challenges and barriers to supervising offenders with mental illness, and the responses of officers from rural versus urban settings were compared. Officers reported that probationers with mental illness are difficult to supervise and supervision challenges are exacerbated by a scarcity of mental health and substance abuse treatment resources, limited social support, and a lack of employment opportunities for this population of probationers. Officers report unique and similar challenges across rural and urban settings. This study contributes to our understanding of the challenges of supervising probationers with mental illness and informs practice, policy and research at the interface of the criminal justice and mental health systems. 相似文献
179.
Social research that informs the implementation of natural resource policies is frequently driven by the logic of the policy system itself. A prevailing concern with achieving policy outcomes can lead, however, to lack of attention to equally important aspects, for example the challenges the policy instruments present to those they are targeting and the consequences this might have for government–citizen relationships. To help guide research into these issues we have developed a situational–interactional approach to interpretive policy analysis that seeks to examine the processes involved when people collectively make sense of government instruments. The theoretical basis is provided to a large extent by Luhmann’s theory of self-referential social systems. In addition, we operationalise the concepts of interactional framing and resemiotisation to capture the active work of the citizens in sense-making processes. We then apply our situational–interactional analysis to small-scale forest ownership in Flanders. Analysis of data from focus groups with forest owners reveals how interactions build on each other in the co-development of particular strategies to cope with government intervention. Finally, we discuss two future directions for research. First, the forest owners find themselves in an inescapable relationship with the government, and feel their autonomy is threatened. Government intervention, therefore, will almost necessarily lead to resistance. Second, forest groups enhance compatibility between the government system and the forest owners, but rather than narrowing the gap between the two worlds they tend to emphasise it. 相似文献
180.
Bert George Steven Van de Walle Gerhard Hammerschmid 《Public administration review》2019,79(3):330-342
Management tools are often argued to ameliorate public service performance. Indeed, evidence has emerged to support positive outcomes related to the use of management tools in a variety of public sector settings. Despite these positive outcomes, there is wide variation in the extent to which public organizations use management tools. Drawing on normative isomorphism and contingency theory, this article investigates the determinants of both organization‐oriented and client‐oriented management tool use by top public sector executives. The hypotheses are tested using data from a large‐N survey of 4,533 central government executives in 18 European countries. Country and sector fixed‐effects ordinary least squares regression models indicate that contingency theory matters more than normative isomorphism. Public executives working in organizations that are bigger and have goal clarity and executive status are more likely to use management tools. The only normative pressure that has a positive impact on management tool use is whether public sector executives have a top hierarchical position. 相似文献