全文获取类型
收费全文 | 2208篇 |
免费 | 77篇 |
专业分类
各国政治 | 215篇 |
工人农民 | 101篇 |
世界政治 | 263篇 |
外交国际关系 | 194篇 |
法律 | 890篇 |
中国共产党 | 1篇 |
中国政治 | 38篇 |
政治理论 | 569篇 |
综合类 | 14篇 |
出版年
2023年 | 7篇 |
2022年 | 8篇 |
2021年 | 11篇 |
2020年 | 35篇 |
2019年 | 43篇 |
2018年 | 57篇 |
2017年 | 69篇 |
2016年 | 67篇 |
2015年 | 48篇 |
2014年 | 67篇 |
2013年 | 399篇 |
2012年 | 55篇 |
2011年 | 71篇 |
2010年 | 59篇 |
2009年 | 84篇 |
2008年 | 71篇 |
2007年 | 75篇 |
2006年 | 66篇 |
2005年 | 57篇 |
2004年 | 94篇 |
2003年 | 60篇 |
2002年 | 62篇 |
2001年 | 41篇 |
2000年 | 46篇 |
1999年 | 35篇 |
1998年 | 47篇 |
1997年 | 45篇 |
1996年 | 30篇 |
1995年 | 42篇 |
1994年 | 37篇 |
1993年 | 50篇 |
1992年 | 28篇 |
1991年 | 26篇 |
1990年 | 30篇 |
1989年 | 25篇 |
1988年 | 27篇 |
1987年 | 28篇 |
1986年 | 21篇 |
1985年 | 23篇 |
1984年 | 20篇 |
1983年 | 15篇 |
1982年 | 10篇 |
1981年 | 18篇 |
1980年 | 17篇 |
1979年 | 8篇 |
1977年 | 10篇 |
1976年 | 8篇 |
1975年 | 4篇 |
1974年 | 4篇 |
1973年 | 6篇 |
排序方式: 共有2285条查询结果,搜索用时 31 毫秒
981.
982.
983.
984.
985.
Bestiality is a serious although less frequently occurring form of animal cruelty that may be linked to subsequent aggression against humans. This investigation examines whether a perpetrator's race, childhood residence, education, commission of a personal crime, and the number of personal crimes committed affects acts of bestiality committed during childhood or adolescence among a sample of incarcerated males. The results show that respondents with less education and those who had been convicted of committing crimes against people on one or more occasions were more likely to have had sex with animals during their childhood or adolescence than other respondents in the sample. These findings lend some support to the sexually polymorphous theory that among these perpetrators sex and aggression have become mutually inclusive and that bestiality as a form of animal cruelty may be linked with interpersonal human violence. 相似文献
986.
Kisely S Campbell LA Preston NJ Xiao J 《International journal of law and psychiatry》2006,29(6):507-515
Epidemiological studies using administrative databases have several advantages over other methodologies in studying the effectiveness of compulsory community treatment such as community treatment orders (CTOs). We compared patients placed on CTOs in Western Australia with controls drawn from both within the jurisdiction and from another without this measure (Nova Scotia). Although in different countries, the mental health services in both jurisdictions share common characteristics. Notably, we were able to control for forensic history in our comparison within Western Australia. We analysed predictors of admission and number of bed-days using multiple, logistic or Cox regression as appropriate. Of the 274 subjects placed on a CTO, we were able to find controls for up to 96% (n=265). CTO placement was not associated with reduced admissions or mean bed-days, although there was a threshold effect with a reduced risk of inpatient stays exceeding 100 days. Outpatient contacts were significantly greater for the CTO group. However, we do not know whether the intensity of treatment, or its compulsory nature, effected outcome. 相似文献
987.
988.
989.
Jose A. Gomez-Ibanez Robert A. Leone Stephen A. O'Connell 《Journal of policy analysis and management》1983,2(2):196-219
The conventional wisdom suggests that import restraints help the protected domestic industry at the expense of consumers. In the longer term, however, trade restraint may encourage foreign firms to adopt new and more threatening business strategies, such as upgrading the quality of their products or moving plants to the United States. If these long-term dynamic effects of restraint are considered, trade restraints may prove harmful to the domestic industry as well as consumers. 相似文献
990.