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排序方式: 共有213条查询结果,搜索用时 15 毫秒
61.
Thomas A. Wolf 《后苏联事务》2013,29(3):232-260
Soviet trade with the developing countries is analyzed using formal statistical techniques. Soviet imports of primary products are found to grow more rapidly but to be no more stable than imports of these products by market economies. Evidence is found of Soviet price discrimination in trade in favor of LDC members of the CMEA and against LDCs with which it has bilateral clearing agreements (BCAs). BCAs are correlated with greater trade volumes, relatively diverse export structures and more stable LDC exports to the Soviet Union. No evidence exists that Soviet aid deliveries are linked systematically with later Soviet imports. Journal of Economic Literature, Classification Numbers: 124, 421, 443 相似文献
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Fracasso T Karger B Schmidt PF Reinbold WD Pfeiffer H 《Journal of forensic sciences》2011,56(Z1):S101-S104
There are few reported cases of death attributed to retrograde cerebral air embolism from central venous catheter. The pathophysiological mechanism and the necessary conditions are not fully understood, also because of missing experimental data. We performed experimental simulation while working on a possible case of retrograde cerebral air embolism. A hermetic system consisting of two containers connected to each other and to an electric pump by means of rubber hoses was built. In this system, a fluid (water and blood) could continuously flow under conditions similar to those of the common jugular vein. The part of the system representing the jugular vein could be freely positioned at angles between 0 and 90°. A central venous catheter was inserted into this part. After disconnection, the behavior of the air bubbles entering the hose through the tip of the catheter was evaluated at different positions. At angles between 0 and 45°, the air bubbles followed the fluid flow. At angles >45°, the air bubbles showed the tendency to flow upstream; this phenomenon was more evident the more vertically the hose was located. We were able to demonstrate that a retrograde air embolism can be caused by a disconnected catheter and is even more likely if the neck is in a vertical position. 相似文献
63.
Sebastian Wolf 《Swiss Political Science Review》2011,17(1):51-74
Abstract: Der Aufsatz beschäftigt sich vorwiegend aus einer theoretischen Perspektive mit Korruption als einer bestimmten Form von Devianz in Kleinstaaten, insbesondere Mikrostaaten: Weisen sie Besonderheiten im Hinblick auf Korruptionsanfälligkeit, das Kosten‐Nutzen‐Verhältnis von Korruption sowie die Korruptionsbekämpfung auf? Zunächst wird eine grobe Kosten‐Nutzen‐Analyse für Kleinstaaten im Hinblick auf Korruption skizziert. Es folgt ein Versuch, darüber hinausgehend strukturelle korruptionserhöhende oder korruptionsreduzierende Einflussfaktoren für das Korruptionsniveau in kleinen politischen Systemen zu benennen. Daraufhin wird anhand eines Stufenmodells diskutiert, wann und gegebenenfalls in welcher Weise Kleinstaaten aktiv Korruptionsbekämpfung betreiben. Einige der in den verschiedenen Abschnitten entwickelten Überlegungen werden am Beispiel Liechtensteins punktuell veranschaulicht. Der Beitrag versteht sich als theoretische Vorstudie für weiterführende empirische Analysen. 相似文献
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Research on the very specific damage to single textile fibres caused by vapour cloud explosions is presented. Vapour cloud explosion experiments were carried out using a selection of 41 garments differing in colour, fibre composition and textile construction. Fibres subjected to a vapour cloud explosion become wider at the end, often taking the form of a ball, bulb or shovel, while the morphological structure of the remaining part of the fibre remains almost unchanged. The presented results can clearly indicate that an explosion took place at the scene of the crime. The authors would like to be able to provide investigators with specific information on how to link clothes (and thus people) to a specific type of crime. 相似文献
67.
Decompositional odor analysis database 总被引:1,自引:0,他引:1
Vass AA Smith RR Thompson CV Burnett MN Wolf DA Synstelien JA Dulgerian N Eckenrode BA 《Journal of forensic sciences》2004,49(4):760-769
This study, conducted at the University of Tennessee's Anthropological Research Facility (ARF), describes the establishment of the Decompositional Odor Analysis (DOA) Database for the purpose of developing a man-portable, chemical sensor capable of detecting clandestine burial sites of human remains, thereby mimicking canine olfaction. This "living" database currently spans the first year and a half of burial, providing identification, chemical trends and semi-quantitation of chemicals liberated below, above and at the surface of graves 1.5 to 3.5 ft deep (0.45 to 1.0 m) for four individuals. Triple sorbent traps (TSTs) were used to collect air samples in the field and revealed eight major classes of chemicals containing 424 specific volatile compounds associated with burial decomposition. This research is the first step toward identification of an "odor signature" unique to human decomposition with projected ramifications on cadaver dog training procedures and in the development of field portable analytical instruments which can be used to locate human remains buried in shallow graves. 相似文献
68.
New horizons in forensic radiology: the 60-second digital autopsy-full-body examination of a gunshot victim by multislice computed tomography 总被引:1,自引:0,他引:1
Thali MJ Schweitzer W Yen K Vock P Ozdoba C Spielvogel E Dirnhofer R 《The American journal of forensic medicine and pathology》2003,24(1):22-27
The goal of this study was the full-body documentation of a gunshot wound victim with multislice helical computed tomography for subsequent comparison with the findings of the standard forensic autopsy. Complete volume data of the head, neck, and trunk were acquired by use of two acquisitions of less than 1 minute of total scanning time. Subsequent two-dimensional multiplanar reformations and three-dimensional shaded surface display reconstructions helped document the gunshot-created skull fractures and brain injuries, including the wound track, and the intracerebral bone fragments. Computed tomography also demonstrated intracardiac air embolism and pulmonary aspiration of blood resulting from bullet wound-related trauma. The "digital autopsy," even when postprocessing time was added, was more rapid than the classic forensic autopsy and, based on the nondestructive approach, offered certain advantages in comparison with the forensic autopsy. 相似文献
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