全文获取类型
收费全文 | 2187篇 |
免费 | 78篇 |
专业分类
各国政治 | 168篇 |
工人农民 | 106篇 |
世界政治 | 131篇 |
外交国际关系 | 82篇 |
法律 | 1428篇 |
中国政治 | 29篇 |
政治理论 | 308篇 |
综合类 | 13篇 |
出版年
2023年 | 13篇 |
2021年 | 16篇 |
2020年 | 55篇 |
2019年 | 56篇 |
2018年 | 81篇 |
2017年 | 100篇 |
2016年 | 98篇 |
2015年 | 50篇 |
2014年 | 56篇 |
2013年 | 254篇 |
2012年 | 64篇 |
2011年 | 76篇 |
2010年 | 56篇 |
2009年 | 53篇 |
2008年 | 61篇 |
2007年 | 63篇 |
2006年 | 64篇 |
2005年 | 58篇 |
2004年 | 54篇 |
2003年 | 61篇 |
2002年 | 48篇 |
2001年 | 67篇 |
2000年 | 51篇 |
1999年 | 48篇 |
1998年 | 17篇 |
1997年 | 16篇 |
1996年 | 20篇 |
1995年 | 13篇 |
1994年 | 13篇 |
1992年 | 30篇 |
1991年 | 33篇 |
1990年 | 37篇 |
1989年 | 40篇 |
1988年 | 36篇 |
1987年 | 26篇 |
1986年 | 37篇 |
1985年 | 30篇 |
1984年 | 20篇 |
1983年 | 17篇 |
1981年 | 19篇 |
1980年 | 13篇 |
1979年 | 20篇 |
1978年 | 21篇 |
1977年 | 17篇 |
1973年 | 12篇 |
1971年 | 18篇 |
1970年 | 17篇 |
1969年 | 12篇 |
1968年 | 17篇 |
1967年 | 12篇 |
排序方式: 共有2265条查询结果,搜索用时 234 毫秒
911.
912.
913.
Sudden death from cardiac arrest is described, which occurred after a minor accident. Morphologically, a coronary change was found in the sense of "juvenile coronary atherosclerosis" in connection with intramural bleeding postmortem. As there were no injuries in connection with the accident but psychoemotional stress had occurred, it is concluded that affective resonance resulting from the accident initiated the death. The pathological and pathophysiological relationships are discussed. 相似文献
914.
Thomas O. Hilliard 《Law and human behavior》1978,2(2):107-131
Summary The present paper presented key applications of psychology and the law to the black community, embracing both civil and criminal law and legislation. The breadth of its focus preluded a more in-depth treatment of other areas relevant to black people which include issues related to psychiatric emergencies and involuntary hospitalization, child custody, and right-to-treatment litigation in prison and mental health facilities. In focusing attention on these applications and areas for activity, hopefully, I have not presented an unrealistic depiction of a responsive, socially sensitive, legal system capable and willing to exercise its powerful tools in the interest of the black community. To the contrary, there is considerable literature that identifies the historic role of the legal system in the enactments of laws to institutionalize and cement slavery, its failure to aggressively protect constitutional and civil rights of blacks, in imposing penalties differentially to blacks and whites in the criminal justice system, and more recently, conspiracies of law enforcement officials to deprive blacks of basic civil rights (Bell, 1975; Burns, 1973; Higgenbotham, 1973). The legal system, rather than being an effective instrument for justice and positive social changes, has often been a major source of racism. Thus, any meaningful attempts by lawyers or behavioral scientists in the interest of black people cannot ignore the racism that is embedded in the fabric of the legal profession and the behavioral sciences. Particular aspects of the law with significant social-psychological dimensions are: the cultural inertia, the archaicness of the law due to its roots in English common-law, historic and contemporary racism, conservatism associated with the principle of stare decisis, judicial elitism, and the substitution of administrative and judicial discretion for overt racism. Thus, in order for the legal system, or the field of psychology, to be reponsive to the needs of blacks and other oppressed groups, they must eradicate racism and injustice in their own ranks.Traditionally law has functioned as the hand maiden of the propertied class in our society. So it was to be expected that lawyers in the legislative halls, lawyers on the bench and lawyers in the executive branch of government would combine their talents to perpetuate by law this peculiarly American doctrine of racism predicated upon a claimed color inferiority. 相似文献
915.
916.
The primary purpose of this study was to examine psychopathy within a model of aggressive behavior that encompasses narcissism and "threatened egoism." This model was advanced by Baumeister and his colleagues (e.g., R. F. Baumeister, L. Smart, & J. M. Boden, 1996; B. J. Bushman & R. F. Baumeister, 1998). We examined whether the threatened egotism model extends to the construct of psychopathy and whether the two factors underlying psychopathy exhibit different associations with aggression within this model. Self-report data, correctional officer and counselor reports, and disciplinary report information obtained for 98 male inmates provided partial evidence that psychopathic individuals tend to respond aggressively when confronted with an ego threat. Moreover, psychopathic individuals exhibited this pattern of aggression more strongly than did narcissistic individuals. These findings bear potentially useful implications for the understanding and treatment of aggression in forensic populations. 相似文献
917.
918.
Ethanol assays in the blood, saliva and urine were made according to two methods: alkylnitrite gas-liquid chromatography and direct vapor-phase method without thermostating. N-propanol was used as an internal standard. For saliva and urine the methods produced similar results. For blood, the direct vapor-phase method detected significantly lower level of ethanol compared to alkylnitrite one (p = 0.001). 24-h storage of the samples in refrigerator does not deviate the results. Recommendations are provided for most effective usage of each method. 相似文献
919.
The article presents the results of nitrobenzene and 3-aminohydroxibensene extraction from aqueous solutions by means of five organic solvents. The following factors influence on the extraction degree is shown: the nature of the extracting agent, aqueous phase pH, saturation of some extracting agents with water. The number of extractions for isolation of the necessary quantities of the compounds studied is calculated. 相似文献
920.
A critical point of comparison between a fiber collected from a crime scene and a fiber from a known source is the color. Fiber dye analysis using thin-layer chromatography or ultraviolet (UV)-visible (Vis) microspectrophotometry provides useful, although limited, data for comparison. High-performance liquid chromatography-electrospray ionization mass spectrometry (LC/MS) overcomes these limitations by integrating chromatography, ultraviolet-visible spectroscopy, and mass spectrometry into a single instrument. In order to evaluate the applicability of the LC/MS to forensic fiber dye analysis, a multi-stage chromatographic method using acidified water and acidified acetonitrile was developed that separated and identified a mixture of 15 basic and 13 disperse dye standards. The LC/MS also detected and analyzed dyes extracted from individual 0.5 cm acrylic and polyester fibers, demonstrating its applicability to this type of analysis. With regard to the analysis of disperse dyes in polyester fibers, the replacement of pyridine with acetonitrile in the extraction system allowed direct injection of the extracts into the LC/MS. The advantage of the LC/MS over other instrumental methods of textile dye analysis is demonstrated by the analysis and differentiation of three black acrylic fibers: two fibers had similar UV-Vis spectra but were differentiated with chromatography and two had similar UV-Vis spectra and chromatograms but were differentiated using the mass spectrometer. 相似文献