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Adolescence is a relatively short period between childhood and adulthood. It is very difficult to determine adulthood based on biological indicators. The third molar may be considered a potential age marker for the period between the ages of 16–21. Our study evaluated a set of 1700 panoramic radiographs of individuals aged between 5 and 21 years. Results confirmed the statistically significant difference in the course of third molars development. The mean deviation for individuals with one third molar agenesis is ?0.98 years, for individuals with two third molars agenesis ?1.89 years, and with three molars agenesis ?3.28 years. Thus, the extent of the deviation is directly proportional to the number of unformed third molars. The calculation of age according to the mean of stages of all third molars could lead to the underestimation of age. No intergender differences were found. Age determination using third molars could be used for forensic purposes. 相似文献
113.
Tarini Fernando M.B. B.S. Calle Winskog M.D. Roger W. Byard M.D. 《Journal of forensic sciences》2013,58(4):1085-1087
A 51‐year‐old man was found dead face down and partially submerged in a bathtub alongside two hairdryers. The hairdryers had continued to work, as the victim had bypassed the electrical board of the house prior to dropping them into the water. This had resulted in death due to electrocution, with subsequent heating of the bath water causing marked putrefaction and softening of the immersed body parts. The back and feet, which were not submerged, were preserved. The degree of anterior decomposition was not in keeping with the postmortem interval; however, regional decomposition with sparing of the back and feet provided a clue at autopsy as to the sequence of events. Individuals with training in, or knowledge of, electrical circuitry are capable of modifying domestic wiring so that safety switches and/or fuses can be bypassed ensuring that electrical devices will continue to function even while under water. 相似文献
114.
Danielle M. Butzbach Ph.D. Peter C. Stockham B.Sc. Hilton J. Kobus Ph.D. D. Noel Sims B.Sc. Roger W. Byard M.D. Robert J. Lokan M.Sc. George Stewart Walker Ph.D. 《Journal of forensic sciences》2013,58(1):90-100
The stability of two benzisoxazole antipsychotics was determined in vitro in decomposing porcine blood inoculated with bacteria, utilizing a high‐performance liquid chromatography with ultraviolet and fluorescence detection method for drug quantitation. Stability experiments for risperidone and paliperidone were conducted at 7, 20 and 37°C for 4 days using sterile and bacterially inoculated porcine blood. The drugs were stable in sterile blood at each temperature and in inoculated blood at 7°C, but degraded significantly in inoculated blood at 20 and 37°C. Complete loss occurred within 2 days when incubated at 37°C. The benzisoxazole‐cleaved degradation products for both drugs were identified as 2‐hydroxybenzoyl‐risperidone and 2‐hydroxybenzoyl‐paliperidone utilizing liquid chromatography quadrupole‐time‐of‐flight mass spectrometry and accurate mass measurements. The degradation products have been found in postmortem case studies, including one case where risperidone and paliperidone were not detected, indicating complete conversion can occur in situ. 相似文献
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Roger Cotterrell 《Journal of law and society》2013,40(4):657-669
This article is a contribution to the occasional series dealing with major books that have influenced the authors. Previous contributors include Stewart Macaulay, John Griffith, William Twining, Carol Harlow, Geoffrey Bindman, Harry Arthurs, André‐Jean Arnaud, Alan Hunt, Michael Adler, Lawrence O. Gostin, John P. Heinz, and Roger Brownsword. 相似文献
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Roger W. Byard M.D. 《Journal of forensic sciences》2015,60(3):812-815
The ingestion of corrosive substances may produce severe burns to the upper aerodigestive tract and stomach, particularly if the pH is greater than 12 or less than two. There is a biphasic age grouping with adult cases most often involving self‐harm and pediatric cases accidental ingestion. Three cases are reported to demonstrate characteristic features following the ingestion of potassium hydroxide, glacial acetic acid and Lysol®, respectively. All deaths were due to the effects of caustic burns to the upper aerodigestive tract, esophagus and stomach with perforation and/or hemorrhage. The extent of injuries in these cases depends on the nature, amount, and concentration of the agent and on the exposure time. A point to note at autopsy is that tissue damage may also occur from postmortem exposure. Typical injuries involve perioral, limb, and trunk burns, with extensive aerodigestive liquefactive/coagulative necrosis causing hemorrhage and perforation. 相似文献
120.
Local Area Agreements (LAAs) are a mechanism for delivering improved outcomes for local people, through recasting governance relationships between central government and localities and between local agencies. This paper assesses the effectiveness of LAAs in reforming these critical relationships, drawing on research carried out in 2004–06 into the round one and two negotiations. These early negotiations highlighted the complexity of ‘central–local relations’; a coherent approach across Whitehall was hampered by differences in departmental culture and in the nature of relationships with local delivery agencies, while the new role for Government Offices was ambiguous. Nevertheless the early LAAs represented a major step forward in terms of local–central relations. Within localities, the process of developing LAAs proved challenging and highlighted governance weaknesses; however in the main participants report that partnerships have been greatly strengthened as a result. These early experiences provided rich learning, and policy has developed significantly since the pilots. At the time this research ended there was not yet any conclusive evidence on the balance of costs and benefits. However, over time LAAs have the potential to bring about a transformation in governance relationships and, in turn, the delivery of services to address cross-cutting outcomes. 相似文献