全文获取类型
收费全文 | 863篇 |
免费 | 78篇 |
专业分类
各国政治 | 67篇 |
工人农民 | 43篇 |
世界政治 | 73篇 |
外交国际关系 | 51篇 |
法律 | 461篇 |
中国政治 | 4篇 |
政治理论 | 230篇 |
综合类 | 12篇 |
出版年
2021年 | 5篇 |
2020年 | 15篇 |
2019年 | 13篇 |
2018年 | 30篇 |
2017年 | 35篇 |
2016年 | 39篇 |
2015年 | 21篇 |
2014年 | 22篇 |
2013年 | 138篇 |
2012年 | 36篇 |
2011年 | 38篇 |
2010年 | 25篇 |
2009年 | 22篇 |
2008年 | 30篇 |
2007年 | 43篇 |
2006年 | 23篇 |
2005年 | 19篇 |
2004年 | 22篇 |
2003年 | 26篇 |
2002年 | 28篇 |
2001年 | 16篇 |
2000年 | 7篇 |
1999年 | 7篇 |
1998年 | 10篇 |
1997年 | 13篇 |
1996年 | 13篇 |
1995年 | 20篇 |
1994年 | 15篇 |
1993年 | 16篇 |
1992年 | 12篇 |
1991年 | 12篇 |
1990年 | 6篇 |
1989年 | 12篇 |
1988年 | 15篇 |
1987年 | 12篇 |
1986年 | 14篇 |
1985年 | 13篇 |
1984年 | 5篇 |
1983年 | 8篇 |
1982年 | 6篇 |
1981年 | 8篇 |
1980年 | 8篇 |
1979年 | 8篇 |
1978年 | 9篇 |
1977年 | 4篇 |
1976年 | 6篇 |
1975年 | 5篇 |
1973年 | 6篇 |
1972年 | 5篇 |
1969年 | 4篇 |
排序方式: 共有941条查询结果,搜索用时 15 毫秒
141.
Eleven deaths from crocodile attacks in the Northern Territory, Australia were reviewed. The male:female ratio was 8:3; age range—10–62 years, average 29.4 years. Four children were included (one boy and three girls, aged 10, 11, and two at 12 years), and there were seven aboriginal victims (64%). The attacks were witnessed in eight cases with the victims swimming in freshwater N = 5, standing on a river bank N = 1, fishing in fresh water N = 1, or diving in the sea N = 1. At autopsy, several distinct patterns of injury were observed ranging from complete traumatic disruption of the body with only incomplete remains for examination (N = 5), to crushing of the head with fractures of the skull (N = 4), crushing of the chest with fractures of the ribs and sternum (N = 2), and avulsion of limbs (N = 4). In one case, there was decapitation. Autopsy evaluations were complicated by decomposition and loss of body parts. 相似文献
142.
Roger W. Byard M.D. 《Journal of forensic sciences》2016,61(4):979-983
The corpus callosum is a large central white matter tract that connects the right and left cerebral hemispheres. It permits placental mammals to have a more sophisticated interhemispheric integration of sensory cortices and allows communication between cortical and subcortical neurons. Search of the literature and the pathology archives at The University of Adelaide was undertaken to identify lesions and injuries within the corpus callosum that may have forensic significance. These include developmental/congenital lesions with agenesis/dysgenesis, vascular malformations, and lipomas; inherited syndromes such as neurofibromatosis; and acquired lesions involving trauma, neoplasia, demyelination, vascular conditions, infections, fat embolism, aging/dementia, and the effects of toxins. The finding of lesions within the corpus callosum should initiate careful examination of the adjacent brain and other organ systems for related phenomena as this may shed some light on the nature of the underlying condition, and also help to determine whether there are any forensic implications. 相似文献
143.
The Role of Interface Shape on the Impact Characteristics and Cranial Fracture Patterns Using the Immature Porcine Head Model, , 下载免费PDF全文
Patrick E. Vaughan B.S. Caitlin C. M. Vogelsberg M.S. Jennifer M. Vollner M.S. Todd W. Fenton Ph.D. Roger C. Haut Ph.D. 《Journal of forensic sciences》2016,61(5):1190-1197
The forensic literature suggests that when adolescents fall onto edged and pointed surfaces, depressed fractures can occur at low energy levels. This study documents impact biomechanics and fracture characteristics of infant porcine skulls dropped onto flat, curved, edged, and focal surfaces. Results showed that the energy needed for fracture initiation was nearly four times higher against a flat surface than against the other surfaces. While characteristic measures of fracture such as number and length of fractures did not vary with impact surface shape, the fracture patterns did depend on impact surface shape. While experimental impacts against the flat surface produced linear fractures initiating at sutural boundaries peripheral to the point of impact (POI), more focal impacts produced depressed fractures initiating at the POI. The study supported case‐based forensic literature suggesting cranial fracture patterns depend on impact surface shape and that fracture initiation energy is lower for more focal impacts. 相似文献
144.
145.
Glyn Davis Alice Ling Bill Scales & Roger Wilkins 《Australian Journal of Public Administration》2001,60(3):11-26
Australia has well‐established conventions for caretaker governments. These conventions regulate how a government should operate once an election is called, and have been documented for some decades. Yet the current conventions date from an era when elections usually produced clear and immediate results. Can our caretaker conventions cope with the emerging reality of indecisive elections and long delays before a new government is confirmed? This paper canvasses the state of Australia's caretaker conventions and offers suggestions for an expanded, contemporary code. 相似文献
146.
This article explores state court budgetary strategies and their effectiveness in the appropriations process as perceived by key budgeting actors. In general, we find evidence of state judiciaries that try to remain "above politics" when dealing with budget issues. The most important strategies to this effect include submitting realistic requests, providing documentation to support needs, and not using budget "weapons" at their disposal (e.g., writs of mandamus). However, the survey results do indicate that state judiciaries use certain strategies that have a more political tint, such as lobbying by court officials. 相似文献
147.
Kelly Olds B.HealthSci. John Gilbert M.B. B.S. Neil E.I. Langlois M.D. Roger W. Byard Ph.D. M.D. 《Journal of forensic sciences》2019,64(4):1245-1247
A 32‐year‐old woman collapsed following an intravenous injection of material that included crushed pharmaceutical tablets. Resuscitation was attempted but was unsuccessful. She had an extensive past medical history of complications resulting from intravenous drug use. Death was due to mixed drug toxicity. The major findings at autopsy included a 10 mm deep skin sinus over the right femoral vein that was used as an injection site. Polarizable foreign material was present at the injection site and also within the lungs with a granulomatous reaction. Of note, a probe‐patent foramen ovale had permitted paradoxical embolization of this material into the systemic circulation with lodgement within the liver, portal lymph nodes, myocardium, spleen, kidneys, and pancreas. This case highlights the importance of checking for any intracardiac shunts, which may be quite small, and systemic dissemination of foreign material to multiple organs in intravenous drug users who present for medicolegal assessment. 相似文献
148.
Hyperosmolarity Induces Armanni‐Ebstein‐like Renal Tubular Epithelial Swelling and Cytoplasmic Vacuolization 下载免费PDF全文
Chong Zhou M.B.B.S. Robert Vink D.Sc. Roger W. Byard M.D. 《Journal of forensic sciences》2017,62(1):229-232
Armanni–Ebstein lesions have been considered pathognomonic for diabetes mellitus and appear as markedly swollen renal tubular epithelial cells with cytoplasmic clearing and glycogen accumulation. However, the extent to which hyperosmolarity contributes to the Armanni–Ebstein phenotype is unclear. Ten sheep were injected intravenously with 20% mannitol at 11 mOsm/kg, and subsequent histological evaluation of the kidneys showed variable degrees of osmotic nephrosis and cytoplasmic clearing of renal tubular epithelial cells similar to that seen with Armanni–Ebstein lesions. However, although morphological changes similar to Armanni–Ebstein lesions could be produced, no intracytoplasmic glycogen was demonstrated with periodic Acid–Schiff (PAS) stain. This suggests that while hyperosmolarity may contribute to the development of an Armanni–Ebstein phenotype, glycogen accumulation may result from the more complex metabolic effects of glucose on renal tubular epithelial cells. Thus, when Armanni/Ebstein‐like vacuolizations are seen at autopsy, a confirmatory PAS stain is recommended because of the potential effect of hyperosmolar states. 相似文献
149.
Roger W. Byard M.D. 《Journal of forensic sciences》2017,62(4):934-936
Deaths due to buffalo attack have not been well described. A 72‐year‐old man was trampled by a water buffalo (Bubalus bubalis) while attempting to move the animal within an enclosed area at an abattoir. At autopsy, there were numerous injuries involving the chest, head, neck, and left upper arm. Blunt force injury had resulted in multiple rib fractures with a flail chest and fracture/dislocation of the mid‐cervical vertebrae caused either by physical crushing by the animal against the walls of the enclosure or by stomping. There was also evidence of crush asphyxia with bilateral conjunctival hemorrhages and petechial hemorrhages. In addition, there was a deep degloving injury of the upper left arm compatible with goring by one of the buffalo horns. While large animal attacks may result in death from multiple injuries, careful dissection and examination of specific injuries at autopsy may clarify the complex interaction of lethal mechanisms. 相似文献
150.
Chong Zhou M.B.B.S. Andrea J. Yool Ph.D. Roger W. Byard M.D. 《Journal of forensic sciences》2017,62(4):921-925
Armanni–Ebstein lesions (AEL) occur in deaths related to uncontrolled diabetes mellitus. To investigate the relationship between AEL and terminal hyperglycemia, we retrospectively reviewed 71 cases with vitreous glucose levels ≥11.1 mmol/L; 27 (38%) cases had AEL (vitreous glucose 14.0–77.3 mmol/L); and 44 cases (62%) did not (vitreous glucose 11.1–91.9 mmol/L). There was no significant difference (p = 0.271) in vitreous glucose levels between the cases with AEL (mean 39.2, SD 16.7 mmol/L) and those without (mean 34.2, SD 19.8 mmol/L). Similarly, there was no difference in the degree of dehydration, renal failure, or osmolality. However, there was a significantly higher level of β‐hydroxybutyrate among the cases with AEL compared to those without (p = 0.007), suggesting that ketoacidosis may facilitate the development of AEL. Given the possible synergistic role of β‐hydroxybutyrate, the correlation between AEL and terminal hyperglycemia in animal studies may not be applicable to humans. AEL may also possibly occur with sublethal elevations in glucose. 相似文献