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   353篇
  免费   20篇
各国政治   10篇
工人农民   69篇
世界政治   37篇
外交国际关系   15篇
法律   184篇
中国共产党   1篇
中国政治   1篇
政治理论   55篇
综合类   1篇
  2023年   1篇
  2022年   1篇
  2021年   3篇
  2020年   8篇
  2019年   14篇
  2018年   15篇
  2017年   17篇
  2016年   20篇
  2015年   10篇
  2014年   13篇
  2013年   69篇
  2012年   13篇
  2011年   14篇
  2010年   6篇
  2009年   14篇
  2008年   10篇
  2007年   13篇
  2006年   11篇
  2005年   7篇
  2004年   12篇
  2003年   9篇
  2002年   6篇
  2001年   11篇
  2000年   5篇
  1999年   7篇
  1998年   5篇
  1997年   5篇
  1996年   3篇
  1995年   4篇
  1994年   6篇
  1992年   4篇
  1991年   2篇
  1990年   5篇
  1989年   4篇
  1988年   1篇
  1987年   1篇
  1986年   2篇
  1985年   3篇
  1984年   2篇
  1983年   4篇
  1982年   1篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1978年   2篇
  1975年   2篇
  1974年   3篇
  1973年   2篇
排序方式: 共有373条查询结果,搜索用时 15 毫秒
111.
112.
113.
Suicide is the second leading cause of death for youth aged 11 to 15, taking over 5,500 lives from 2003 to 2014. Suicide among this age group is linked to risk factors such as mental health problems, family history of suicidal behavior, biological factors, family problems, and peer victimization and bullying. However, few studies have examined the frequency with which such problems occur among youth suicide decedents or the context in which decedents experience these risk factors and the complex interplay of risk that results in a decedent’s decision to take his/her own life. Data from a random sample of 482 youth (ages 11–15) suicide cases captured in the National Violent Death Reporting System from 2003 to 2014 were analyzed. The sample had fewer girls than boys (31 vs. 69?%) and comprised primarily White youth (79?%), but also African Americans (13?%), Asians (4?%), and youth of other races (4?%). Narrative data from coroner/medical examiner and law enforcement investigative reports were coded and analyzed to identify common behavioral patterns that preceded suicide. Emergent themes were quantified and examined using content and constant comparative analysis. Themes regarding antecedents across multiple levels of the social ecology emerged. Relationship problems, particularly with parents, were the most common suicide antecedent. Also, a pattern demonstrating a consistent progression toward suicidal behavior emerged from the data. Narratives indicated that youth were commonly exposed to one or more problems, often resulting in feelings of loneliness and burdensomeness, which progressed toward thoughts and sometimes plans for or attempts at suicide. Continued exposure to negative experiences and thoughts/plans about suicide, and/or self-injurious acts resulted in an acquired capacity to self-harm, eventually leading to suicide. These findings provide support for theories of suicidal behavior and highlight the importance of multi-level, comprehensive interventions that address individual cognitions and build social connectedness and support, as well as prevention strategies that increase awareness of the warning signs and symptoms of suicide, particularly among family members of at-risk youth.  相似文献   
114.
115.
Purpose. The present study compared attitudes about Human Rights (HR) and the advocation of coercive interviewing practices amongst Indian Police Officers, Offenders and a sample from the General Public. Method. 100 Police Officers, 50 Offenders and 50 members of the General Public completed a questionnaire that assessed their attitudes about the Human Rights of suspects and the use of coercion in suspect interviews. Results. Police Officers and the Public accepted both custodial violence and the use of intimidating interrogation strategies more readily than Offenders. They were also more prepared to suspend Suspects' Human Rights. Further, individuals who scored high on a coercive belief scale (CBS) were particularly inclined to favour custodial violence and suspend Human Rights. In addition, the self‐reported frequency with which Police Officers used intimidating and non‐intimidating interviewing techniques was related to their beliefs about Suspects' Human Rights and the extent to which they perceived intimidating interviewing methods to be useful. Conclusion. Attitudes about effective interviewing strategies may well be embedded within a broad social context. The effectiveness of a Human Rights Agenda requires that officers in India are informed of the effectiveness of ethical interviewing standards and the practical and legal dangers of using inappropriate methods.  相似文献   
116.
117.
118.
Reviews     
Stephen F. Cohen, Bukharin and the Bolshevik Revolution. A Political Biography 1888–1938. New York: Alfred A. Knopf, 1973, and London: Wildwood House, 1974. xix + 495 pp. $15. £4.50.

Vladimir G. Treml, Dimitri M. Gallik, Barry L. Kostinsky and Kurt W. Kruger, The Structure of the Soviet Economy. Analysis and Reconstruction of the 1966 Input‐Output Table. New York: Praeger Publishers, 1972 and London: Pall Mall Press, 1973. xxiv + 661 pp. $32.50. £14.00.

Gur Ofer, The Service Sector in Soviet Economic Growth: A Comparative Study. Cambridge, Mass.: Harvard UP, 1973. xi + 202 pp. $10.00. £5.00.

Morris Bornstein (ed.), Plan and Market: Economic Reform in Eastern Europe. New Haven and London: Yale UP, 1973. viii + 416 pp. $15.00. £6.50.

Jan Ake Dellenbrant, Reformists and Traditionalists: A Study of Soviet Discussions about Economic Reform, 1960–1965. Stockholm: Raben T. Sjogren, 1972. 166 pp.

Abraham Katz, The Politics of Economic Reform in the Soviet Union. New York: Praeger Publishers, 1972 and London: Pall Mall Press, 1973. viii + 230 pp. £6.25.

Rudolf Bi?ani?, Economic Policy in Socialist Yugoslavia. Cambridge: at the University Press, 1973. (Soviet and East European Studies Series.) viii + 254 PP‐ £4–80.

Michael Ellman, Planning Problems in the USSR. The Contribution of Mathematical Economics to their Solution 1960–1971. Cambridge: at the University Press, 1973. (University of Cambridge Department of Applied Economics, Monograph 24.) xx + 222 pp. £4.50. $14.95.

Gunnar L. Amundsen, Le Conseil d'Entraide Economique. Structures, réalisations, perspectives. Strasbourg: Université des Sciences Humaines, second printing 1972. 835 pp.

Ellen Mickiewicz (ed.), Handbook of Soviet Social Science Data. New York: The Free Press, and London: Collier Macmillan Publishers, 1973. xxvi + 225 pp. £7.50.

Gerhard Simon, Church, State and Opposition in the U.S.S.R. London: C. Hurst, 1974. x + 248 pp. £4.20.

Martin Dewhirst and Robert Farrell (eds.), The Soviet Censorship. Metuchen, New Jersey: The Scarecrow Press, 1973. vii + 170 pp. $7.50.

Paul Avrich (ed.), The Anarchists in the Russian Revolution. London: Thames & Hudson, 1973. 179 pp. £2.75 (cloth). £1.35 (paper).

Paul Hollander, Soviet and American Society. A Comparison. London : OUP, 1973. xx + 476 pp. £5.75.

Anita Dasbach‐Mallinckrodt, Wer macht die Aussenpolitik der DDR? Düsseldorf, Droste Verlag, 1972. 364 pp.

J. G. Garrard (ed.), The Eighteenth Century in Russia. Oxford: Clarendon Press, 1973. xiii + 356 pp. £6.50.  相似文献   

119.
The goal of this study was to compare the responses of late adolescent and young adult children of divorce and nondivorce on a new multidimensional measure of parentification assessing the extent and fairness of past and present caregiving in one's family of origin. Three-hundred-and-eighty-two individuals participated. Item analyses and internal consistencies of the different parentification scales were initially conducted on one-half of the sample and cross-validated on the other half. The scores of European and African American participants from the validation sample whose parents either divorced before middle adolescence (N = 35) or never divorced (N = 68) were then compared. The divorced group reported providing more emotional and instrumental caregiving and experiencing more unfairness in their families of origin than did the nondivorced group, although the effect for emotional caregiving was moderated by temporal perspective. Evidence that problematic forms of parentification in children of divorce continue into late adolescence and young adulthood has implications for models of understanding and helping these children and their families.  相似文献   
120.
Analysis of mitochondrial DNA (mtDNA) sequence from human hairs has proven to be a valuable complement to traditional hair comparison microscopy in forensic cases when nuclear DNA typing is not possible. However, while much is known about the specialties of hair biology and mtDNA sequence analysis, there has been little correlation of individual information. Hair microscopy and hair embryogenesis are subjects that are sometimes unfamiliar to the forensic DNA scientist. The continual growth and replacement of human hairs involves complex cellular transformation and regeneration events. In turn, the analysis of mtDNA sequence data can involve complex questions of interpretation (e.g., heteroplasmy and the sequence variation it may cause within an individual, or between related individuals. In this paper we review the details of hair developmental histology, including the migration of mitochondria in the growing hair, and the related interpretation issues regarding the analysis of mtDNA data in hair. Macroscopic and microscopic hair specimen classifications are provided as a possible guide to help forensic scientists better associate mtDNA sequence heteroplasmy data with the physical characteristics of a hair. These same hair specimen classifications may also be useful when evaluating the relative success in sequencing different types and/or forms of human hairs. The ultimate goal of this review is to bring the hair microscopist and forensic DNA scientist closer together, as the use of mtDNA sequence analysis continues to expand.  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