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   533篇
  免费   16篇
各国政治   23篇
工人农民   11篇
世界政治   58篇
外交国际关系   34篇
法律   250篇
中国政治   6篇
政治理论   159篇
综合类   8篇
  2023年   3篇
  2022年   6篇
  2021年   5篇
  2020年   8篇
  2019年   14篇
  2018年   7篇
  2017年   21篇
  2016年   6篇
  2015年   13篇
  2014年   9篇
  2013年   106篇
  2012年   17篇
  2011年   19篇
  2010年   8篇
  2009年   17篇
  2008年   20篇
  2007年   24篇
  2006年   15篇
  2005年   18篇
  2004年   23篇
  2003年   16篇
  2002年   8篇
  2001年   12篇
  2000年   12篇
  1999年   9篇
  1998年   13篇
  1997年   8篇
  1996年   8篇
  1995年   10篇
  1994年   13篇
  1993年   6篇
  1992年   6篇
  1991年   4篇
  1990年   6篇
  1989年   4篇
  1988年   5篇
  1987年   3篇
  1986年   3篇
  1985年   8篇
  1984年   5篇
  1983年   8篇
  1982年   3篇
  1981年   10篇
  1980年   1篇
  1978年   3篇
  1976年   1篇
  1973年   1篇
  1972年   3篇
  1971年   1篇
排序方式: 共有549条查询结果,搜索用时 31 毫秒
1.
Boeckelman  Keith 《Publius》1991,21(2):49-62
Economic development has become a prominent issue for stategovernments. Nevertheless, states vary in the economic policiesthey choose. Two general approaches to the issue are discussed:the maintenance/attraction strategy and the creation strategy.Factor analysis allows us to gauge state effort on these twocriteria. Regression analysis shows that political culture isan important factor in predicting which approach a state chooses,with traditionalistic states favoring the maintenance/attractionstrategy, and moralistic states favoring the creation alternative.Other predictors of state policy choices include the conditionof the economy and the diffusion of innovations. Also discussedis the interaction of political culture with other relevantvariables in shaping state policies.  相似文献   
2.
3.
4.
This paper describes an effort by industry and university partners to centralize manufacturing decision making through the development of generic simulation tools. This ongoing, cooperative process improvement initiative between the Industrial and Systems Engineering faculty at the University of Alabama in Huntsville (UAH) and Chrysler’s Huntsville Electronics Division (HED) permits the involved faculty to broaden their experience and technical expertise in electronics fabrication, while the industry partner benefits from the transfer of technical knowledge and advanced analysis methodologies from the university. The focus of the project is the definition of generic electronic manufacturing models that can be easily defined and implemented through common user-oriented interfaces, allowing users who are not familiar with simulation and simulation languages to address the needs of their particular functional areas.  相似文献   
5.
Sixteen major evaluations of programs to prevent school bullying, conducted in 11 different countries, are reviewed in detail. Of these 16 evaluations, 8 produced desirable results, 2 produced mixed results, 4 produced small or negligible effects, and 2 produced undesirable results. These varying findings may reflect variations in programs, in implementation, in assessment methods, or in evaluation designs. It is concluded that high-quality evaluations are needed in the future, with randomized designs, theoretically grounded interventions, multiple measures of bullying, and attempts to disentangle the effectiveness of different program components.  相似文献   
6.
7.
Following the tradition of Joan McCord's work, this paper reviews longitudinal-experimental studies in criminology with community samples of at least 100 persons, follow-up periods of at least 5 years, personal interviews, and measures of offending. The main advantages of such studies are in investigating both the natural history of development (including the effects of risk/protective factors and life events) and the impact of interventions on offending. This paper also reviews advantages and problems of prospective longitudinal surveys, randomized experiments, and longitudinal-experimental studies in criminology. Four key longitudinal-experimental studies were conducted by Joan McCord, Richard Tremblay, Lawrence Schweinhart and David Olds. Other studies have been conducted, or are currently under way, but no criminological study has yet been published with several years of personal data on participants both before and after an intervention.Joan McCord Award Lecture given at the American Society of Criminology, Toronto, Canada.  相似文献   
8.
This paper aims to review randomized experiments in criminology with offending outcomes and reasonably large numbers that were published between 1982 and 2004. A total of 83 experiments are summarized, compared with only 35 published between 1957 and 1981: 12 on policing, 13 on prevention, 14 on corrections, 22 on courts, and 22 on community interventions. Randomized experiments are still relatively uncommon, but there have been more large-scale multi-site experiments and replication programs. There have also been several experiments in which 100 or more places were randomly assigned. Relatively few experiments (only 10 out of 83) were conducted outside the United States. Meta-analyses suggest that prevention methods, correctional therapy, batterer programs, drug courts, juvenile restitution and deterrent policing were effective in reducing offending, while Scared Straight and boot camp programs caused a significant increase in offending.  相似文献   
9.
How severe have been the restrictions on the autonomy of localgovernments, as state and federal mandates and grant programsproliferated in the 1970s? This study of mandate and grant impactsin nine, small California cities suggests that local controlhas not been reduced as much as the recent literature of federalismargues. Municipal officials in these communities perceived arange of effects according to program areas. Clean water standardswere negatively viewed, while state planning mandates actuallyserved to further local goals. Most of the cities did not hesitateto compete for grants, despite their many strings. Based onthe "hard case" of small cities—which are relative newcomersto grant and mandate programs, and generally change-resistantin attitude—this study points out some positive localgovernment impacts of federal-and state-local entanglements. 1 As associate investigator of the project on which this paperis based, Joan Hogan of the Institute of Governmental Affairs,University of California at Davis, contributed significantlyto the research.  相似文献   
10.
Deoxyribonucleic acid (DNA) was isolated from a number of spongy and compact human bone tissue specimens, and the yield was estimated on a "per milligram of starting tissue" basis. DNA was, in addition, isolated from a number of corresponding blood and bone tissue specimens. Spectrophotofluorometry and ethidium bromide visualization on minigels were used to estimate the quantity and degree of degradation of DNA. The DNA from several blood-bone pairs is shown to give concordant restriction fragment length polymorphism (RFLP) typing results by two different typing protocols with five different single-locus probes. DNA from several additional blood-bone pairs is shown to give concordant results for human leucocyte antigen (HLA)-DQ alpha phenotypes following polymerase chain reaction (PCR) amplification and hybridization to specific allele-specific oligonucleotide (ASO) probes, and for the variable numbers of tandem repeats (VNTR) length polymorphisms 3' to the human apolipoprotein B (APOB) gene following PCR amplification with specific primers and analysis of the products by electrophoresis and ethidium bromide visualization.  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