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   1390篇
  免费   129篇
各国政治   115篇
工人农民   54篇
世界政治   104篇
外交国际关系   97篇
法律   729篇
中国政治   8篇
政治理论   395篇
综合类   17篇
  2023年   8篇
  2021年   13篇
  2020年   29篇
  2019年   34篇
  2018年   56篇
  2017年   73篇
  2016年   61篇
  2015年   47篇
  2014年   41篇
  2013年   231篇
  2012年   60篇
  2011年   62篇
  2010年   49篇
  2009年   40篇
  2008年   48篇
  2007年   55篇
  2006年   42篇
  2005年   27篇
  2004年   43篇
  2003年   34篇
  2002年   39篇
  2001年   23篇
  2000年   18篇
  1999年   12篇
  1998年   19篇
  1997年   21篇
  1996年   21篇
  1995年   23篇
  1994年   17篇
  1993年   22篇
  1992年   15篇
  1991年   20篇
  1990年   11篇
  1989年   17篇
  1988年   18篇
  1987年   16篇
  1986年   16篇
  1985年   17篇
  1984年   8篇
  1983年   8篇
  1982年   7篇
  1981年   11篇
  1980年   11篇
  1979年   9篇
  1978年   12篇
  1977年   7篇
  1976年   6篇
  1975年   6篇
  1973年   7篇
  1972年   6篇
排序方式: 共有1519条查询结果,搜索用时 31 毫秒
171.
172.
173.
This study examines the changes in three variables associated with the processing of delinquent youth by the Juvenile Court from 1974 through 1979. The data on numbers of youth referred to court, on adjudicatory probation and committed to public and private institutions is examined for a three-year period prior to significant court diversion and community-based treatment (1974–1976), and compared with a three-year period during which many diversionary services and treatments occurred (1977–1979). Data is also studied from two counties similar to Bucks in youth population-Delaware and Montgomery counties. The results show significant changes within Bucks County: a 9 percent decrease in total court referrals while Delaware experienced a 63 percent increase and Montgomery a 28 percent increase; significant reduction of probation in Bucks, a slight reduction in Montgomery and a 28 percent increase in Delaware County; and most importantly in terms of service costs, institutional commitments increased only 17 percent in Bucks, while increasing 63 percent in Montgomery and 208 percent in Delaware. Data on total reported offenses (crime rates) does not indicate major differences among the three counties; rather there seems to be variation in the types of services and processing of troubled youth which have resulted in 45 percent lower costs for the juvenile probation services in Bucks County.  相似文献   
174.
A comparison of parole officers and parole violators perceptions on factors related to recidivism was conducted to provide information which could contribute to increasing parole effectiveness and the development of correctional treautment strategies. The total population of parole viotators from a medium security correctional institution, and a systmatic random sample of parole officers were selected to form the research sample. The study consisted of 54 parole violators and 50 parole officers. The study necessitated the construction of a questionnaire. The variables under study included police and courts, society, parole supervision, imprisonment selfcontrol, personal attitude, and employment. A oneway analysis was conducted to compare the perceptions of the sample of parole officers and parole violators. Analysis of the data indicated that parole officers and parole violators view factors related to recidivism in markedly different ways. The author expresses special thanks for assistance and support to Dr. Billy Bramlett, Dr. Greg Riede, Dr. George Beto and Dr. Rodney Henderson, all of the College of Criminal Justice Institute, Sam Houston University.  相似文献   
175.
Colonel Lyndall Fownes Urwick is one of the major theoreticians and historians of the management movement of the twentieth century. For this he has been recognized internationally, holding most of the major awards for excellence in contributions to management. He is now 87 years old and lives in Australia. In this paper the authors report an edited version of Urwick's verbal responses to questions about Taylor, the Gilbreths, Gant, Fayol, Mayo, Mooney, Reiley, Mary Parker Follett, Barnard, Drucker and Koontz. Questions were designed to elicit Urwick's experiences with the individuals rather than just their ideas. Anecdotal recollections have been included where they give insights into the pioneer's personality and writings.  相似文献   
176.
177.
The Dayton/Montgomery County Criminal Justice Center is a first attempt at systematic personnel development for an entire criminal justice system on a regional level. Through its work in training and education, communications, career pathing and development, and system change, the Center has promoted the idea of an improved, symbiotic relatioship among the major branches of the criminal justice system, and has acted as a catalyst for needed systemic change.  相似文献   
178.
Issues in both the children of alcoholics and child abuse literatures were addressed in an attempt to disentangle the effects on young adults of growing up in alcoholic homes versus abusive homes. Using multiple regression, retrospective reports of parental abuse (emotional, physical, and sexual) and parental support (love/support, independence, and fairness), witnessing violence between parents, and parental alcohol use were used as predictor variables for outcomes noted by both literatures. When the effects of all other predictors were statistically controlled, parental alcohol use was not significantly related to depressive symptoms or aggression. Different abusive and supportive behaviors, depending on sex of parent and sex of participant, were significant predictors of both depression and aggression. Results underscore the importance of including and controlling for inter-parental violence and for different types of child abuse (especially emotional abuse) and parental supportive behaviors in investigations of outcomes related to abusive and alcoholic families. Implications for treatment of individuals from these families are discussed.  相似文献   
179.
Since the publication of Lovaas' (1987) impressive findings, there has been a proliferation of home-based behavior modification programs for autistic children. Parents and other paraprofessionals often play key roles in the implementation and monitoring of these programs. The Behavioral Summarized Evaluation (BSE) was developed for professionals and paraprofessionals to use in assessing the severity of autistic symptoms over the course of treatment. This paper examined the psychometric properties of the BSE (inter-item consistency, factorial composition, convergent validity, and sensitivity to parents' perceptions of symptom change over time) when used by parents of autistic youngsters undergoing home-based intervention. Recommendations for future research are presented.  相似文献   
180.
Ninhydrin is one of the most widely used reagents for chemical development of fingerprints on porous surfaces. The detection is based on the reaction of ninhydrin with a monoacidic component of the fingerprint to form an intensively colored compound named Ruhemann's Purple. A computational study of the mechanisms and reaction energetics of the formation of Ruhemann's Purple from ninhydrin and alanine is presented. Such a study is significant from a forensic science point of view because of the strong interest in the forensic chemistry and law enforcement communities in developing alternatives to the current generation of ninhydrin like chemicals for the detection and development of latent fingerprints. Information about the mechanism of reaction between ninhydrin and amino acids can ultimately help to design compounds with stronger chromo-fluorogenic properties in aid of detecting fingerprints at crime scenes. The three most accepted mechanisms of formation have been considered using ab initio quantum mechanical calculations. At relatively high temperature ( approximately 100 degrees C) all three mechanisms are energetically feasible. However since it is recommended that forensic analyses be performed at room temperature, a revised mechanism is proposed for the formation of Ruhemann's Purple under this condition.  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