全文获取类型
收费全文 | 1082篇 |
免费 | 24篇 |
专业分类
各国政治 | 48篇 |
工人农民 | 46篇 |
世界政治 | 60篇 |
外交国际关系 | 25篇 |
法律 | 793篇 |
中国政治 | 21篇 |
政治理论 | 106篇 |
综合类 | 7篇 |
出版年
2023年 | 4篇 |
2022年 | 5篇 |
2021年 | 9篇 |
2020年 | 18篇 |
2019年 | 25篇 |
2018年 | 24篇 |
2017年 | 23篇 |
2016年 | 32篇 |
2015年 | 18篇 |
2014年 | 17篇 |
2013年 | 75篇 |
2012年 | 30篇 |
2011年 | 29篇 |
2010年 | 23篇 |
2009年 | 19篇 |
2008年 | 28篇 |
2007年 | 16篇 |
2006年 | 16篇 |
2005年 | 28篇 |
2004年 | 42篇 |
2003年 | 37篇 |
2002年 | 25篇 |
2001年 | 101篇 |
2000年 | 67篇 |
1999年 | 73篇 |
1998年 | 35篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 8篇 |
1994年 | 4篇 |
1993年 | 7篇 |
1992年 | 21篇 |
1991年 | 18篇 |
1990年 | 39篇 |
1989年 | 26篇 |
1988年 | 29篇 |
1987年 | 23篇 |
1986年 | 14篇 |
1985年 | 13篇 |
1984年 | 8篇 |
1983年 | 8篇 |
1982年 | 11篇 |
1981年 | 8篇 |
1980年 | 4篇 |
1979年 | 11篇 |
1978年 | 7篇 |
1973年 | 2篇 |
1971年 | 4篇 |
1970年 | 3篇 |
1968年 | 2篇 |
排序方式: 共有1106条查询结果,搜索用时 15 毫秒
131.
132.
We specify an individual-level model linking crime desistance to estimates of legal risk, differential expectations, degree of past success at legitimate and criminal pursuits, and age. OLS and logistic regression procedures are used to estimate the model using longitudinal data on serious, previously imprisoned offenders. As predicted, age decreases estimates of the likely payoffs from crime and legitimate employment. Contrary to predictions, age is unrelated to the perceived legal risk of renewed criminal participation. Age, past success at avoiding confinement, expectations of success from crime, and level of education are significant predictors of crime desistance. Neither the perceived legal risk of crime nor expectations of success through straight pursuits significantly predict desistance. We suggest an interpretation for these anomalous findings. 相似文献
133.
134.
135.
136.
论仲裁员的管辖权与可仲裁性问题 总被引:1,自引:1,他引:0
针对仲裁员的管辖权与可仲裁性这两个容易混淆的问题,结合有关国际公约和各国法律分别进行深入探讨,并对中国当前存在的问题提出了建议. 相似文献
137.
S S Amr S Y Al-Ragheb N A Soleiman N R Al-Debs 《The American journal of forensic medicine and pathology》1987,8(2):142-147
A case of cardiac fibroma in a 58-year-old woman with a history of atrioventricular block is described. The patient died suddenly at home 6 days following the insertion of a pacemaker. Review of the pertinent literature is presented. 相似文献
138.
Image fusion is a process of combining two or more images into an image. It can extract features from source images, and provide more information than one image can. Multi-resolution analysis plays an important role in image processing, it provides a technique to decompose an image and extract information from coarse to fine scales. In some practical forensic examinations (such as the cartridge image check), we cannot obtain all information from just one image; on the contrary, we need information from images with difference light sources (or light ways). In this paper, we apply an image fusion method based on multi-resolution analysis to forensic science. Synthetic and real images (such as images from closed-up photography and flash photography) are used to show the capability of the multi-resolution image fusion technique. 相似文献
139.
Cannabinoid use was studied in a nonspecific population of postmortem urine specimens in the State of Maryland. Of 500 sequential specimens screened for cannabinoids by enzyme multiplied immunoassay EMIT, 63 (13%) were initially positive and 58 (12%) were confirmed positive (92%). It was observed that geographic location and race did not correlate with cannabinoid prevalence. Cannabinoid use was observed to be strongly age related, with peak use by the 21- to 25-year-old age group where 22% of the cases were positive. Use of cannabinoids was also closely linked to homicides, which represented nearly half of the positive cases but only 13% of the total cases. When comparing manner of death, the greatest percent of confirmed positives was seen in homicide (26%) and drug-related (17%) deaths. The incidence of cannabinoid use was found to be more than 3 times as great in drug-related (17%) as compared to natural deaths (5%). The percent of cannabinoid-positive cases from vehicle-related accidents was low (6%) and that from nonvehicle-related accidents somewhat higher (10%). Other drugs appeared in cannabinoid-positive cases. Most prevalent was ethanol N = 18, followed by morphine (from heroin, N = 11), quinine N = 11, and cocaine N = 11. Phencyclidine (PCP) occurred twice and several other drugs were reported only once. Of the 25 homicide cases screened for drugs, 64% were positive for some drug including ethyl alcohol. Thus it appears that a high percentage of homicide cases are drug related. Males greatly outnumbered females (56:2) in positive cases, but the number of female specimens received was small. 相似文献
140.
Mechanical forces applied to the neck region are known to release certain amounts of thyroglobulin into circulation. In this experiment, an attempt was made to detect thyroglobulin in bloodstains as an aid in the diagnosis of mechanical asphyxia. Experimental bloodstains containing thyroglobulin at concentrations of 1, 2, 5 and 10 mu g/mL were prepared on a sheet of filter paper. Small pieces of bloodstains, measuring approximately 2.4 cm2 in area, were extracted with 0.1 mL of distilled water and the extracts were tested against an antihuman thyroglobulin serum by precipitation-electrophoresis. Bloodstains containing more than 1 mu g/mL of thyroglobulin formed distinct precipitin lines for up to one month of storage, while bloodstains containing more than 5 mu g/mL of thyroglobulin formed distinct precipitin lines for up to three months of storage. The present results suggest that the bloodstains can be utilized in the diagnosis of mechanical asphyxia. 相似文献