Global ETD Search
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Showing 1 to 20 of 23 for “"post mortem interval"”.
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POST-MORTEM INTERVAL ESTIMATION THROUGH METABOLOMICS OF PINEAL GLAND
This study investigates metabolomic profiling of post-mortem pineal glands using 1H-NMR spectroscopy. Significant diurnal variations in metabolites correlated with the post-mortem interval, offering a novel approach for time-of-death estimation.
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Estimation of Post-Mortem Interval Using Decomposition Scales for Hanging Bodies
… degree days (ADD), to provide an estimate of the post-mortem interval (PMI). PMI estimations are important in aiding police to narrow down the possible identity of a body, and to include or exclude suspects, and also to establish the order of death for inheritance purposes when two or more …
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Effects of heat shock, hypoxia, post-mortem interval and glioma disease state on heat shock gene HSPA expression
… patients (gliomas and normal conditions), and in post mortem rat brain samples exposed to heat shock. Three human glioma cell lines were chosen for this study, each representing various types of glioma: (astrocytoma, oligodendroglioma and glioblastoma), with a normal human astrocyte cell line used …
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Analysis of RNA stability in forensic specimens
… labile. This research has characterised the post-mortem degradation behaviour of tissue RNA in an animal model, the laboratory mouse; with the aim of identifying a post-mortem interval during which gene expression analysis provides informative and reliable results. It was extremely …
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Cooling rates of dummies under various degrees of air humidity, wind speed and air temperature
… thanatochronometry (mathematic estimation of the post-mortem interval using body temperature measurements) is used the world over and utilises various corrective factors for naked and clothed bodies in still/moving air. The purpose of this research was to correlate measured air flow rates (wind …
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Insect succession and changes in the soil pH and electrical conductivity associated with decomposing pig carcasses on the Table Mountain National Park of the Western Cape Province of South Africa
… of forensic entomology and soil chemistry in post-mortem interval estimations. However, within the Western Cape Province of South Africa, and specifically, the Table Mountain region, no studies on carrion-associated entomofauna have been published. Also, no studies in South Africa have …
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Several new methods for the development of latent and blood fingerprints
… appraisal of a technique for the estimation of post-mortem interval and age of blood stains. The utilisation of coordinatively-unsaturated (six-coordinate) europium and terbium complexes as reactive reagents for the direct visualisation of latent fingerprints on porous and non-porous surfaces …
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The influence of Methylphenidate on the development of the forensically significant blow fly Chrysomya chloropyga (Diptera: Calliphoridae) in the Western Cape Province
… and successional data to estimate the post-mortem interval (PMI). Ante-mortem drug use prior to an individual's death may result in drug transmission to feeding insects and subsequent alteration of their development, thereby altering PMI estimates. This study investigated the influence …
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Gene expression in post mortem dermal tissue
… persistence and detection of gene transcripts in post mortem tissues has significance for forensic science and medicine, since there is the potential to provide information about the cause of, or circumstances surrounding, death and the post mortem interval. Previous studies in this area have …
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Elucidation of the lipid degradation process in soft tissue and fluid during decomposition, in the presence and absence of insects.
… identify potential biomarkers for estimating the post mortem interval (PMI). Tissue was also collected, from which pH was measured and fatty acids extracted and analyzed by GC-MS. All results were compared between the carcass groups to investigate the effect of insects on the decomposition …
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DNA barcoding of forensically important blow flies (Diptera: Calliphoridae) within the Western Cape of South Africa
… identity is a crucial step towards estimating post mortem interval. DNA barcoding can aid in the identification of unknown forensically relevant species, and this requires the comparison of DNA barcodes to reference data from known species. However, there is a lack of DNA barcode reference data …
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The development and validation of an ABL835 FLEX Blood Gas Analyser method for the quantitation of glucose, lactate, and electrolytes in post-mortem vitreous humour
Post-mortem biochemistry provides valuable insights into the biochemical status of an individual at the time of death. Vitreous humour (VH) has an anatomically isolated location within the body, making it less prone to the effects of putrefaction and autolysis after death. As such, VH has …
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Determining the impact of carrion decomposition on soil microbial activity levels and community composition.
… may provide useful information concerning post-mortem intervals and aid in the identification of clandestine graves. Four experiments using pigs as human decomposition analogues were performed over the course of 2011 and 2012 in southern Ontario to document changes in soil microbiology …
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The analysis of the entomological and chemical decomposition of human remains to ultimately assess the viability of the domestic pig as a substitute in forensic applications
Death investigations often rely on the minimum post mortem interval (minPMI) estimations provided by forensic entomologists. The models accepted by courts in Canada are not based on research involving humans but rather on a human substitute, the domestic pig. However, now that facilities for human …
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The establishment of baseline data on the rates and processes of soft-tissue decomposition in two terrestrial habitats of the Western Cape, South Africa
Estimation of the post-mortem interval is an oft-sought outcome of forensic death investigations. This requires knowledge of the local environment and how it affects soft-tissue decomposition. Such knowledge is usually informed by locally-obtained data regarding decomposition. However, no such data …
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The effect of clothing and carrion biomass load on decomposition and scavenging in a forensically significant thicketed habitat in Cape Town, South Africa
Estimating the post-mortem interval is important to help identify the deceased in forensic death investigations and requires biogeographically specific knowledge of the rate of decay. Decomposition is influenced by numerous variables, including clothing, climate, and vertebrate scavenging guilds, …
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Forensic taphonomy: investigating the post mortem biochemical properties of cartilage and fungal succession as potential forensic tools
Post mortem interval (PMI – the time elapsed since death and discovery) is important to medicolegal investigations. It helps to construct crucial time lines and assists with the identification of unknown persons by inclusion or exclusion of a suspect’s known movements. Accurate methodologies for …
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DNA barcoding of forensically important flies in the Western Cape
… forensic entomology is the determination of the post mortem interval (PMI) from arthropod evidence associated with a corpse. Estimations of the PMI are based on succession and developmental patterns of specific species that visit the body. As first colonisers, Calliphoridae (blow flies) are often …
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Investigating the current scope and potential of forensic entomology in decomposition cases at Salt River Mortuary, Cape Town, South Africa
… important in the estimation of minimum post-mortem interval. Currently no standard protocol exists for the handling of entomological evidence by SRM personnel and there is a lack of information about the issues that may impact the handling of these death scenes and associated …
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Examining external morphological characteristics of Lucilia sericata pupae for age estimation in medico-legal investigations
… has elapsed since death, otherwise known as the post-mortem interval (PMI). The age of the oldest insects can provide the most precise estimation of the PMI. Flies undergo different stages of development. All the immature stages can be utilized as evidence at death scenes. Out of all the immature …
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