全文获取类型
收费全文 | 12334篇 |
免费 | 420篇 |
专业分类
各国政治 | 791篇 |
工人农民 | 485篇 |
世界政治 | 999篇 |
外交国际关系 | 680篇 |
法律 | 6679篇 |
中国政治 | 87篇 |
政治理论 | 2926篇 |
综合类 | 107篇 |
出版年
2021年 | 69篇 |
2020年 | 154篇 |
2019年 | 197篇 |
2018年 | 309篇 |
2017年 | 332篇 |
2016年 | 392篇 |
2015年 | 240篇 |
2014年 | 289篇 |
2013年 | 1612篇 |
2012年 | 320篇 |
2011年 | 322篇 |
2010年 | 289篇 |
2009年 | 296篇 |
2008年 | 370篇 |
2007年 | 418篇 |
2006年 | 393篇 |
2005年 | 334篇 |
2004年 | 332篇 |
2003年 | 318篇 |
2002年 | 288篇 |
2001年 | 374篇 |
2000年 | 327篇 |
1999年 | 330篇 |
1998年 | 176篇 |
1997年 | 162篇 |
1996年 | 141篇 |
1995年 | 127篇 |
1994年 | 141篇 |
1993年 | 141篇 |
1992年 | 187篇 |
1991年 | 218篇 |
1990年 | 213篇 |
1989年 | 192篇 |
1988年 | 207篇 |
1987年 | 203篇 |
1986年 | 206篇 |
1985年 | 184篇 |
1984年 | 168篇 |
1983年 | 147篇 |
1982年 | 108篇 |
1981年 | 120篇 |
1980年 | 86篇 |
1979年 | 145篇 |
1978年 | 104篇 |
1977年 | 88篇 |
1976年 | 69篇 |
1975年 | 94篇 |
1974年 | 109篇 |
1973年 | 91篇 |
1971年 | 62篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
981.
982.
983.
984.
985.
This paper presents a longitudinal study of alcohol use among college students. Three hypothesized predictors of alcohol use are found to have an independent effect when the other predictors and prior drinking are held constant: the drinking context of the dormitory living group, informal social involvement in college, and lack of commitment to religious and academic values. These predictors are also related to the onset of drinking during the freshman year for those who entered college as abstainers. The pattern varies somewhat for males and females, with the dormitory contextual effect larger for females. Formal involvement in college activities and psychological stress have no independent effect on drinking. The results are discussed in relation to previous work on alcohol use.This research was supported in part by NIAAA Grant AA02863 and NIMH Grant MH28177 and Veterans Administration Research funds.Received Ph.D. in sociology from Stanford University in 1976. Current research interests include adolescent development, statistics, and environmental studies.Received Ph.D. in psychology from University of California, Berkeley, in 1960. Current research interests are personal and environmental influences on behavior. 相似文献
986.
987.
988.
H P Hougen S Rogde K Poulsen 《The American journal of forensic medicine and pathology》1999,20(3):293-299
In this study we investigated homicides in the two Scandinavian capitals, Copenhagen, Denmark and Oslo, Norway, for the 10-year period from 1985 to 1994. The total number of homicides was 431; 63.8% occurred in Copenhagen and 36.2% in Oslo. The average homicide rate was 1.6/100,000 in Copenhagen and 1.8/100,000 in Oslo. Blunt force, sharp force, and strangulation were the most common methods. Firearms were also used but did not account for >20% in either of the two cities. This is probably due to strict gun laws in both countries. There was no clear difference between the homicide victim populations in the two cities with regard to age, gender, or social and marital status. The proportion of alcoholics and unemployed persons was much higher than in the background population and to a similar extent in both cities, indicating that the homicide victim populations differ from the background populations. The perpetrator knew the victim in the majority of the cases. The most frequent motives or circumstances in both cities were fights, family rows, financial controversies, or jealousy. 相似文献
989.
Frank Neubacher Michael Walter Helena Vaacute;lková Krzysztof Krajewski 《European Journal on Criminal Policy and Research》1999,7(4):539-562
The authors trace and compare the developments in recorded juvenile delinquency in Hamburg, Prague, Cracow and Budapest from 1991-1997 and then analyse the processing and selection procedures of the various justice systems. They devote special attention to ethnic minorities within this filtering process. The most salient feature is that the crime rates and processing structures in the former socialist countries display considerable similarities. It would almost be possible to speak of a specific type of criminal justice system with a typical form of reaction. While in the West, the large number of suspects is considerably reduced during later stages of selection to a much smaller number (those actually sentenced and/or imprisoned), what the authors call a funnel model, in the East a smaller number of suspected offenders enters this selection process, but tends to remain within it and be sentenced - the cylinder model. These procedural structures have changed little in the 1990s, and there has certainly not been any increasing alignment of the Eastern systems with the Western one. Indeed, the difference has, if anything, become greater. These lower crime statistics as compared with the West - represented here by Hamburg - are, however, not only the result of equally large discrepancies between the real crime rates, but in this regard the pro-active crime prevention measures of the police, which in Hamburg have caused the inclusion of an increased number of juveniles and foreigners in the crime statistics since 1995, have also had a great effect. The research project thus clearly demonstrates the importance of interpreting crime statistics neither as a true representation nor as a distorted reflection of the activities of a criminal justice system. Instead, these statistics should be seen as reflecting specific processing procedures and methods of crime control. 相似文献
990.
Vaughn MS 《Crime, Law and Social Change》1999,31(4):273-302
In prison and jail subcultures, custodial personnel are committed to the penal harm movement, which seeks to inflict pain
on prisoners. Conversely, correctional medical personnel are sworn to the Hippocratic Oath and are committed to alleviating
prisoners' suffering. The Hippocratic Oath is violated when correctional medical workers adopt penal harm mandates and inflict
pain on prisoners. By analyzing lawsuits filed by prisoners under state tort law, this article shows how the penal harm movement
co-opts some correctional medical employees into abandoning their treatment and healing mission, thus causing denial or delay
of medical treatment to prisoners.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献