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Use of aquatic insects in determining submersion interval   总被引:2,自引:0,他引:2  
Although its potential is great, the use of aquatic insects in determining submersion intervals at death-scene investigations has not been exploited in the past. Aquatic environments have no known true specific indicator species, as do terrestrial habitats. However, aquatic environmental studies show that organisms may colonize a substrate dependent on factors such as size, position, exposure to current, water temperature, current speed, water depth, the presence of algal communities, or detritus. Certain aquatic insects such as the chironomid midges (Diptera, Chironomidae), and the caddisflies (Trichoptera), are capable of colonizing immersed bodies; and with the known biology of a specific species of insect for a certain geographic area, time intervals of submersion can be established.  相似文献   
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Sixty women who were repeatedly assaulted by their husbands were referred by the police for medicolegal examination between August 1978 and August 1981. In most instances, the injuries were non-grievous and they were mostly contusions situated mainly in the region of the head, the neck and the upper limbs. Weapons used ranged from fire-wood to knives. In sixty percent of the cases, complaints were made to the police after 10 years of marriage. This is probably due to the fact that the majority of the women were illiterate and not gainfully employed and were totally dependent on their husbands for their existence.  相似文献   
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The passage and implementation of the San Francisco Children's Amendment, or Proposition J, in 1991 represents an important expansion of the increasingly common strategy of budgetary earmarking by human service organizations. The core of the initiative was a city charter amendment that earmarked a portion of existing property taxes and established a baseline budget for children's services. Of these provisions, the baseline budget has proven most important in preserving children's services and preventing any substitution effects in a time of increasing fiscal stress for the city/ county of San Francisco. This case also illustrates the role of a strong political appeal in passing technical budgetary initiatives over the objections of elected officials and others. While there was concern about the reduced flexibility created by earmarking a city's budget during a period of retrenchment, this concern was overlooked because of the overwhelming political support for the children's cause. However, conflict between groups was created by the measure as groups fought to be included in the provisions of the amendment and over whether each group had obtained its fair share of funding.  相似文献   
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