全文获取类型
收费全文 | 1021篇 |
免费 | 16篇 |
专业分类
各国政治 | 66篇 |
工人农民 | 45篇 |
世界政治 | 76篇 |
外交国际关系 | 62篇 |
法律 | 517篇 |
中国政治 | 4篇 |
政治理论 | 255篇 |
综合类 | 12篇 |
出版年
2021年 | 6篇 |
2020年 | 17篇 |
2019年 | 14篇 |
2018年 | 31篇 |
2017年 | 35篇 |
2016年 | 40篇 |
2015年 | 22篇 |
2014年 | 24篇 |
2013年 | 144篇 |
2012年 | 40篇 |
2011年 | 40篇 |
2010年 | 30篇 |
2009年 | 25篇 |
2008年 | 30篇 |
2007年 | 48篇 |
2006年 | 25篇 |
2005年 | 21篇 |
2004年 | 23篇 |
2003年 | 28篇 |
2002年 | 29篇 |
2001年 | 17篇 |
2000年 | 8篇 |
1999年 | 8篇 |
1998年 | 13篇 |
1997年 | 15篇 |
1996年 | 13篇 |
1995年 | 22篇 |
1994年 | 15篇 |
1993年 | 16篇 |
1992年 | 13篇 |
1991年 | 15篇 |
1990年 | 6篇 |
1989年 | 17篇 |
1988年 | 20篇 |
1987年 | 12篇 |
1986年 | 15篇 |
1985年 | 18篇 |
1984年 | 7篇 |
1983年 | 9篇 |
1982年 | 8篇 |
1981年 | 11篇 |
1980年 | 9篇 |
1979年 | 11篇 |
1978年 | 14篇 |
1977年 | 5篇 |
1976年 | 7篇 |
1975年 | 6篇 |
1973年 | 8篇 |
1972年 | 5篇 |
1967年 | 4篇 |
排序方式: 共有1037条查询结果,搜索用时 15 毫秒
41.
Tarini Fernando M.B. B.S. Calle Winskog M.D. Roger W. Byard M.D. 《Journal of forensic sciences》2013,58(4):1085-1087
A 51‐year‐old man was found dead face down and partially submerged in a bathtub alongside two hairdryers. The hairdryers had continued to work, as the victim had bypassed the electrical board of the house prior to dropping them into the water. This had resulted in death due to electrocution, with subsequent heating of the bath water causing marked putrefaction and softening of the immersed body parts. The back and feet, which were not submerged, were preserved. The degree of anterior decomposition was not in keeping with the postmortem interval; however, regional decomposition with sparing of the back and feet provided a clue at autopsy as to the sequence of events. Individuals with training in, or knowledge of, electrical circuitry are capable of modifying domestic wiring so that safety switches and/or fuses can be bypassed ensuring that electrical devices will continue to function even while under water. 相似文献
42.
Danielle M. Butzbach Ph.D. Peter C. Stockham B.Sc. Hilton J. Kobus Ph.D. D. Noel Sims B.Sc. Roger W. Byard M.D. Robert J. Lokan M.Sc. George Stewart Walker Ph.D. 《Journal of forensic sciences》2013,58(1):90-100
The stability of two benzisoxazole antipsychotics was determined in vitro in decomposing porcine blood inoculated with bacteria, utilizing a high‐performance liquid chromatography with ultraviolet and fluorescence detection method for drug quantitation. Stability experiments for risperidone and paliperidone were conducted at 7, 20 and 37°C for 4 days using sterile and bacterially inoculated porcine blood. The drugs were stable in sterile blood at each temperature and in inoculated blood at 7°C, but degraded significantly in inoculated blood at 20 and 37°C. Complete loss occurred within 2 days when incubated at 37°C. The benzisoxazole‐cleaved degradation products for both drugs were identified as 2‐hydroxybenzoyl‐risperidone and 2‐hydroxybenzoyl‐paliperidone utilizing liquid chromatography quadrupole‐time‐of‐flight mass spectrometry and accurate mass measurements. The degradation products have been found in postmortem case studies, including one case where risperidone and paliperidone were not detected, indicating complete conversion can occur in situ. 相似文献
43.
44.
Roger Cotterrell 《Journal of law and society》2013,40(4):657-669
This article is a contribution to the occasional series dealing with major books that have influenced the authors. Previous contributors include Stewart Macaulay, John Griffith, William Twining, Carol Harlow, Geoffrey Bindman, Harry Arthurs, André‐Jean Arnaud, Alan Hunt, Michael Adler, Lawrence O. Gostin, John P. Heinz, and Roger Brownsword. 相似文献
45.
46.
47.
Roger W. Byard M.D. 《Journal of forensic sciences》2015,60(3):812-815
The ingestion of corrosive substances may produce severe burns to the upper aerodigestive tract and stomach, particularly if the pH is greater than 12 or less than two. There is a biphasic age grouping with adult cases most often involving self‐harm and pediatric cases accidental ingestion. Three cases are reported to demonstrate characteristic features following the ingestion of potassium hydroxide, glacial acetic acid and Lysol®, respectively. All deaths were due to the effects of caustic burns to the upper aerodigestive tract, esophagus and stomach with perforation and/or hemorrhage. The extent of injuries in these cases depends on the nature, amount, and concentration of the agent and on the exposure time. A point to note at autopsy is that tissue damage may also occur from postmortem exposure. Typical injuries involve perioral, limb, and trunk burns, with extensive aerodigestive liquefactive/coagulative necrosis causing hemorrhage and perforation. 相似文献
48.
49.
Nicholas R. Maiden Ph.D. Jehuda Hiss M.D. Hadas Gips M.D. Gil Hocherman M.Sc. Nadav Levin M.Sc. Olga Kosachevsky M.Sc. Asya Vinokurov M.Sc. Avraham Zelkowicz M.Pharm. Roger W. Byard M.D. 《Journal of forensic sciences》2016,61(1):87-92
De‐identified wound data from 197 homicidal gunshot postmortems were obtained between 2000 and 2008. Forensic ballistics data were only available for cases between 2004 and 2008. Males represent 91% of gunshot victims and were struck in the thorax/abdomen with an average of 2.3 bullets. The type of firearms involved were semi‐automatic pistols in the predominant caliber 9‐mm Luger and assault rifles in caliber 5.56 × 45 mm and caliber 7.62 × 39 mm Soviet, using full metal jacket bullets. The majority of shootings occurred at ranges of 1 m or greater. The most common bullet path was front to back in 66% of cases. Entry wounds occurred more often on the left side of the thorax, abdomen, and back. The most common critical organs/tissues to sustain bullet trauma in descending order were as follows: heart, lungs, liver, aorta, spleen, kidneys, and vena cava. Ribs were struck by most bullets that entered the thorax. 相似文献
50.
Anna Leonard Ph.D. Robert Vink Ph.D. Roger W. Byard M.D. 《Journal of forensic sciences》2016,61(3):671-673
Adult male Sprague Dawley rats were euthanized and placed in a horizontal or vertical (head‐down) position at room temperature, after which brain fluid content was measured by a moisture analysis technique at variable time points. No significant difference in brain fluid content was observed between horizontal and vertical postmortem positions. A significant increase in brain fluid content was demonstrated 3, 6, and 24 h after death, with maximal fluid content observed at 24 h. Specifically, the brain fluid content of control animals was 77.79 ± 0.36%, increasing to 80.05 ± 0.22% at 24 h (p < 0.0001). This study has demonstrated no significant differences in brain fluid content related to postmortem position, suggesting that a head‐down position is not associated with increased brain fluid content or swelling. However, significant temporal increases in brain fluid content after death, most likely related to cerebral liquefaction, occur. 相似文献