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71.
Determination of the time of death is one goal of medicolegal death investigations. Algor mortis has been used as a measure of the postmortem interval (PMI). We prospectively recorded the core temperatures of 19 adult bodies entering our morgue cooler and at 3, 6, and 9 h of refrigeration. We then compared the cooling rate with the calculated body mass index (BMI). For each individual body, the rate of cooling was fairly linear with no evidence of a plateau. There was fair to moderate correlation between the BMI and the cooling rate: cooling rate = -0.052 (BMI) + 3.52. The probability of linearity in any given case was 36%. Variables affecting this correlation included the presence and the layers of clothing and if the clothing was wet. Our data confirm that algor mortis is of very limited utility in determining the PMI in bodies that have been refrigerated. 相似文献
72.
Three spectrometric methods, that is, spectrofluorimetry (SF), atomic absorption spectrometry with electrothermal atomization (ET-AAS), and atomic fluorescence spectrometry with hydride generation (HG-AFS) were used for the determination of total selenium in biological samples taken from postmortem material in a case of acute selenium compound poisoning. The precision of the SF, ET-AAS, and HG-AFS methods (RSD, n=10) was found to be in the ranges of 10.0-15.0, 3.0-6.0 and 1.0-1.5%, respectively, and the detection limit was 10.0, 4.0, and 0.1 μg/L of Se, respectively. In the case of HG-AFS, the analytical procedure takes less time and is less laborious than the other methods considered. The obtained results show the usefulness of the HG-AFS method as a supplementary analytical tool to the SF and ET-AAS methods with respect to the determination of selenium as well as the possibility of using this method as a primary one in forensic toxicology practice. 相似文献
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When postmortem environmental conditions are "just right," according to the "Goldilocks Phenomenon," soft tissues (and associated fatty acids) are converted into and preserved as adipocere. To better understand this conversion process and the development of adipocere three human cadavers were immersed in outside, water-filled pits for over 3 months to observe adipocere formation in an underwater context simulating actual field conditions. Recordings of environmental conditions showed that temperatures were between 21 degrees C and 45 degrees C, a range sufficient for the growth of Clostridium perfringens. Chemical analysis of liquid and tissue samples revealed an increase in palmitic acid and decrease in oleic acid. This study tracked the remarkable gross morphological changes that can occur in human bodies subjected to an aquatic postmortem environment. The results support the "Goldilocks Phenomenon" and substantiate previous findings that the presence of bacteria and water is crucial for adipocere to form. 相似文献
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Anders Buchard M.Sc. Kristian Linnet M.D. D.M.Sc. Sys Stybe Johansen Ph.D. Julie Munkholm M.D. Michael Fregerslev M.D. Niels Morling M.D. D.M.Sc. 《Journal of forensic sciences》2010,55(2):457-463
Abstract: We investigated toxicological and pharmacogenetic factors that could influence methadone toxicity using postmortem samples. R‐ and S‐methadone were measured in femoral blood from 90 postmortem cases, mainly drug users. The R‐enantiomer concentrations significantly exceeded that of the S‐enantiomers (Wilcoxon’s test, p < 0.001). The samples were divided into four groups according to other drugs detected (methadone only, methadone and strong analgesics, methadone and benzodiazepines, or methadone and other drugs). There was no significant difference in any of the R‐methadone/total methadone ratios among the four groups. The median R/S ratio was 1.38, which tends to be higher than that reported for the plasma of living subjects. In addition, we investigated whether small nucleotide polymorphisms in the MDR1 gene that encode the drug transporter P‐glycoprotein were associated with the concentrations of R‐ and S‐methadone and its metabolite 2‐ethylidene‐1,5‐dimethyl‐3,3‐diphenylpyrrolidine. No significant association was detected. 相似文献
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Katja Björklund Ph.D. Helinä Häkkänen‐Nyholm Ph.D. Lorraine Sheridan Ph.D. Karl Roberts Ph.D. Asko Tolvanen Ph.D. 《Journal of forensic sciences》2010,55(4):1008-1014
Abstract: Stalking behavior and victim–stalker relationship are often the principal known factors in a stalking case. Thus, they are of great importance when trying to identify factors contributing to stalking duration. The present study aims to identify distinct subgroups of stalking victims based on measures of behavioral stalking dimensions. These victim subgroups, stalking dimensions, and victim–stalker relationship are examined in relation to stalking duration. Using a sample of 137 university students, latent profile analysis (LPA) revealed five distinct victim subgroups based on stalker behavior dimensions: surveillance, low‐profile, social lurker, wide scope, and baseline stalkers. The subgroups were significantly related to stalking duration and explained a considerable amount of the variance along with the stalking dimensions and victim–stalker relationship. Connections to stalking literature and utility of person‐orientated methods in stalking research are discussed. 相似文献
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目的研究颅脑损伤后格拉斯哥昏迷指数(GCS)评分、昏迷时间与社会功能缺陷筛选量表(SDSS)值、日常生活活动能力评价表(ADL)值的相关性。方法选取常州市德安医院司法鉴定所及苏州大学司法鉴定所颅脑损伤被鉴定人281例,详细记录损伤部位、损伤程度、昏迷时间、GCS评分,是否手术治疗、是否为多发伤;同时应用SDSS量表及ADL量表评分,并进行统计分析。结果 GCS评分与颅脑损伤6个月后SDSS值低度相关,与ADL值中度相关;昏迷时间与颅脑损伤6个月后SDSS值低度相关,与ADL高度相关。结论 GCS评分及昏迷时间与颅脑损伤后ADL值、SDSS值具有一定的相关性,对颅脑损伤司法鉴定具有一定的参考价值。 相似文献
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During the recent economic recession, the foreclosure crisis drew vast attention from scholars and policymakers. Numerous studies focused on factors resulting in foreclosures, the impact of foreclosures, and the relationship between neighborhood attributes and foreclosures. Fewer studies investigated the foreclosure resale mechanism by focusing on buyer characteristics and the market duration of foreclosed properties. This research uses foreclosed residential properties in Broward County, Florida, between 2007 and 2011 to explore how market segmentation by assessed value relates to time on market of foreclosed properties. This research finds that extremely low-value properties and very high-value properties generally take longer to sell. Mid-value properties take a shorter time to sell. After controlling for housing attributes and market segmentation, certain neighborhood characteristics, such as lower percentage black population, lower percentage Hispanic population, lower educational attainment, and higher homeownership rate, are associated with increased likelihood of a real estate owned property being sold. These results will help policymakers determine better strategies for the foreclosure resale process. Special attention should focus on properties taking longer to sell or not able to sell during certain time frames to alleviate the negative effects of these properties on neighborhoods. 相似文献