全文获取类型
收费全文 | 1123篇 |
免费 | 44篇 |
专业分类
各国政治 | 45篇 |
工人农民 | 174篇 |
世界政治 | 75篇 |
外交国际关系 | 51篇 |
法律 | 544篇 |
中国政治 | 14篇 |
政治理论 | 259篇 |
综合类 | 5篇 |
出版年
2023年 | 7篇 |
2021年 | 4篇 |
2020年 | 10篇 |
2019年 | 24篇 |
2018年 | 24篇 |
2017年 | 32篇 |
2016年 | 32篇 |
2015年 | 17篇 |
2014年 | 25篇 |
2013年 | 157篇 |
2012年 | 43篇 |
2011年 | 52篇 |
2010年 | 29篇 |
2009年 | 35篇 |
2008年 | 43篇 |
2007年 | 41篇 |
2006年 | 58篇 |
2005年 | 37篇 |
2004年 | 35篇 |
2003年 | 43篇 |
2002年 | 44篇 |
2001年 | 22篇 |
2000年 | 27篇 |
1999年 | 16篇 |
1998年 | 9篇 |
1997年 | 16篇 |
1996年 | 16篇 |
1995年 | 19篇 |
1994年 | 16篇 |
1993年 | 10篇 |
1992年 | 19篇 |
1991年 | 21篇 |
1990年 | 12篇 |
1989年 | 14篇 |
1988年 | 14篇 |
1987年 | 13篇 |
1986年 | 9篇 |
1985年 | 14篇 |
1984年 | 9篇 |
1983年 | 7篇 |
1982年 | 14篇 |
1981年 | 8篇 |
1980年 | 13篇 |
1979年 | 12篇 |
1978年 | 8篇 |
1977年 | 9篇 |
1976年 | 6篇 |
1975年 | 4篇 |
1974年 | 5篇 |
1973年 | 4篇 |
排序方式: 共有1167条查询结果,搜索用时 15 毫秒
881.
The performance of two commercial multiplex kits that together amplify the 13 core short tandem repeat (STR) loci currently in use by forensic laboratories and the U.S. national Combined DNA Indexing System (CODIS) were evaluated. The typing systems examined were AmpFlSTR Profiler Plus and AmpFlSTR COfiler (PE Applied Biosystems, Foster City, CA). Electrophoretic separation and detection of the fluorescent PCR products was achieved by capillary electrophoresis (CE) using an ABI Prism 310 Genetic Analyzer. The studies addressed the on-site validation of the instrument, the software, and each typing system. These studies included instrument sensitivity, resolution, precision, binning, peak height ratios, mixtures, stutter, and the amplification of non-probative and simulated forensic samples. Other additional developmental-type work is also reported herein, such as species specificity testing and amplification of environmentally insulted samples. Amplification conditions were found to be robust and the primer sets shown to be specific to human DNA. Stutter and peak height ratios fell within limits published by the manufacturer and other laboratories. The data demonstrate that the CE instrument can consistently resolve fragments differing in length by one base and that the +/-0.5 base bin used by the Genotyper software is acceptable for making accurate allele calls. Correct typing results were obtained from non-probative and simulated case samples, as well as samples exposed to outdoor environmental conditions. The results support the conclusion that DNA extracted from biological samples routinely encountered in the forensic laboratory can be reliably analyzed with AmpFlSTR Profiler Plus and COfiler using CE. 相似文献
882.
883.
884.
885.
886.
887.
Seabloom W Seabloom ME Seabloom E Barron R Hendrickson S 《International journal of offender therapy and comparative criminology》2003,47(4):468-481
The study determines the effectiveness of a sexuality-positive adolescent sexual offender treatment program and examines subsequent criminal recidivism in the three outcome groups (completed, withdrawn, referred). The sample consists of 122 adolescent males and their families (491 individuals). Of the demographic variables, only living situation was significant, such that patients living with parents were more likely to graduate. None of the behavioral variables were found to be significant. Of the treatment variables, length of time in the program and participation in the Family Journey Seminar were included in the final model. When they were included in the model, no other treatment variable were significantly related to probability of graduation. There were no arrests or convictions for sex-related crimes in the population of participants that successfully completed the program. This group was also less likely than the other groups to be arrested (p = 0.014) or convicted (p = 0.004) across all crime categories. 相似文献
888.
Nurius PS Macy RJ Bhuyan R Holt VL Kernic MA Rivara FP 《Journal of interpersonal violence》2003,18(12):1411-1431
This investigation examined the relationships between physical, psychological, and sexual abuse along with vulnerability appraisals, positive and negative social relations, and socioeconomic resources on battered women's depression symptomatology and physical functioning. Women were recruited following an incident of partner violence that resulted in a police-report or the filing of a protection order. Participants were surveyed using a standardized questionnaire. Bivariate correlations and multiple regressions were used to examine the relationships between predictors as well as the cumulative and unique contributions of each variable set in explaining depression and physical functioning. Findings indicate that vulnerability appraisals, social relations, and socioeconomic resources significantly explain women's depression and physical functioning over and above the unique effect of specific types of partner violence. Given that women's physical and mental health are important aspects of assisting women with safety planning and violence cessation strategies, implications for assessment and interventions for battered women are discussed. 相似文献
889.
890.