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61.
Z Szczerkowska 《Forensic science international》1990,46(1-2):95-99
In muscles preserved in formalin enzymes were not found to be active. In muscles treated by ethanol the ESD, GLO, GPT and PGP enzymes were active. The best results were obtained in the case of acetone treatment. The phenotypes ESD, GLO, GPT and PGP in tissues corresponded with the ones in the comparative blood samples. 相似文献
62.
63.
64.
Rulemaking Amidst Growing Diversity: A Club-of-Clubs Approach to WTO Reform and New Issue Selection 总被引:1,自引:0,他引:1
The diverse nature of World Trade Organization (WTO) membershipmakes it highly unlikely that members will all be willing andable to sign on to the full range of agreements that many membersmight find desirable. The paper proposes an approach in whichthe WTO would supplement its core agreements with additionalclubs to which only some members would subscribe.The approach is a compromise in which diversity can co-existwith a more extensive set of commitments for willing members.The paper provides suggestions for how the clubs would be selectedand how they would operate. Clubs would be chosen where theycould help promote the WTOs central missions: loweringbarriers to trade, reducing the discriminatory effects of domesticpolicies, and enhancing economic development through trade.All WTO members would participate in negotiating club rules,but members would be free not to join. Clubs would use the DisputeSettlement Understanding (DSU) to deal with disputes, but suspensionof concessions in the event of violations would be confinedto the provisions of the same club in which the violation occurred. 相似文献
65.
66.
The paper surveys the most important literature on emerging markets and their performance. Emerging market countries are defined
here as the countries with low intuitional capacity in general, rather than the countries with particular economic characteristics
and per capita income; although the latter is the predominant view in the current literature. The paper places particular
importance on the legal system and legal order (compliance) in the transitional economies, stressing the importance of adequate
regulation where even more advanced regulatory models, like market regulation, should not be totally excluded. Despite many
common characteristics, emerging markets differ significantly one from another and it is very difficult, if really not impossible,
to create one ‘general theory of emerging markets’ and its financial behaviour. Finally, the practice in the last decade or
so, has proven that emerging markets are somewhat unpredictable and difficult to model. 相似文献
67.
The original theory of postmortem rigidity has been developed and substantiated based on the concept of postmortem muscular contracture. It is postulated that the unrestricted growth of Ca2+ concentration in myoplasm of contractile cells during the immediate postmortal period brings the actin-myosine complex to the force generation state without subsequent relaxation. 相似文献
68.
Zörntlein SW Kopp A Becker J Kaufmann TJ Röhrich J Urban R 《Forensic science international》2012,214(1-3):113-117
The in vitro production of GHB was observed in freshly collected, untreated whole blood samples using glass BD-Vacutainers and polypropylene S-monovettes. GHB concentrations were determined daily over a period of one week and after 3, 6 and 9 weeks again. Furthermore, the GHB concentration in 40 untreated random whole blood samples stored at 4°C for a longer period of time (10 samples 12 month, 10 samples 24 month and 20 samples 36 month) was also determined. For comparison, the in vitro production of GHB in freshly collected and prepared serum samples was observed. GHB serum concentrations were determined three times over a period of one week and once again after six weeks. Sample preparation was performed by means of methanolic extraction following the precipitation of whole blood and serum samples. A methanolic standard calibration was done in a low range of 0.005-0.1 μg/mL (LOD: 0.004, LLOQ: 0.013). For quantification a spiked blood bank serum with a determined GHB concentration of 0.09 μg/mL was used. Corrected calibrations in the range of 0.09-5.09 μg/mL were used (LOD: 0.08 μg/mL, LLOQ: 0.30 μg/mL), recovery: 91.3% (high level: 4.09 μg/mL) 50.5% (low level: 0.19 μg/mL). RESULTS: Relevant elevation of GHB was observed in all whole blood samples stored in liquid form (4°C or room temperature). In two of the 40 whole blood samples stored over a longer period of time at 4°C, GHB concentrations in the range of 13 μg/mL were even determined. These findings constitute grounds for caution. Even a GHB cut-off level of 5 μg/mL cannot be considered as "absolutely positive" proof of a case of exogenous administration, at least in untreated liquid blood samples in long time storage. However, no significant elevations of GHB were otherwise observed in any of the serum samples independently of storage temperature nor in the whole blood samples that were frozen for storage. CONCLUSIONS: The results suggest that the cut-off for exogenous GHB of 5 μg/mL could be lowered significantly, with the consequence of winning valuable time for the potential victim, but only if serum is collected for GHB determination or if the whole blood sample is frozen immediately after collection and the procedure well documented. 相似文献
69.
Massonnet G Buzzini P Monard F Jochem G Fido L Bell S Stauber M Coyle T Roux C Hemmings J Leijenhorst H Van Zanten Z Wiggins K Smith C Chabli S Sauneuf T Rosengarten A Meile C Ketterer S Blumer A 《Forensic science international》2012,222(1-3):200-207
A collaborative study on Raman spectroscopy and microspectrophotometry (MSP) was carried out by members of the ENFSI (European Network of Forensic Science Institutes) European Fibres Group (EFG) on different dyed cotton fabrics. The detection limits of the two methods were tested on two cotton sets with a dye concentration ranging from 0.5 to 0.005% (w/w). This survey shows that it is possible to detect the presence of dye in fibres with concentrations below that detectable by the traditional methods of light microscopy and microspectrophotometry (MSP). The MSP detection limit for the dyes used in this study was found to be a concentration of 0.5% (w/w). At this concentration, the fibres appear colourless with light microscopy. Raman spectroscopy clearly shows a higher potential to detect concentrations of dyes as low as 0.05% for the yellow dye RY145 and 0.005% for the blue dye RB221. This detection limit was found to depend both on the chemical composition of the dye itself and on the analytical conditions, particularly the laser wavelength. Furthermore, analysis of binary mixtures of dyes showed that while the minor dye was detected at 1.5% (w/w) (30% of the total dye concentration) using microspectrophotometry, it was detected at a level as low as 0.05% (w/w) (10% of the total dye concentration) using Raman spectroscopy. This work also highlights the importance of a flexible Raman instrument equipped with several lasers at different wavelengths for the analysis of dyed fibres. The operator and the set up of the analytical conditions are also of prime importance in order to obtain high quality spectra. Changing the laser wavelength is important to detect different dyes in a mixture. 相似文献
70.
Amy Z. Mundorff Ph.D. Eric J. Bartelink Ph.D. Turhon A. Murad Ph.D. 《Journal of forensic sciences》2014,59(4):891-897
Previous research has demonstrated significant sexual dimorphism in friction ridge skin characteristics. This study uses a novel method for measuring sexual dimorphism in finger ridge breadths to evaluate its utility as a sex estimation method from an unknown fingerprint. Beginning and ending in a valley, the width of ten parallel ridges with no obstructions or minutia was measured in a sample of 250 males and females (N = 500). The results demonstrate statistically significant differences in ridge breadth between males and females (p < 0.001), with classification accuracy for each digit varying from 83.2% to 89.3%. Classification accuracy for the pooled finger samples was 83.9% for the right hand and 86.2% for the left hand, which is applicable for cases where the digit number cannot be determined. Weight, stature, and to a lesser degree body mass index also significantly correlate with ridge breadth and account for the degree of overlap between males and females. 相似文献