Strangulation of pregnant woman leads to one first-degree murder indictment for the death of the mother: a medicolegal reconsideration of maternal/fetal/homicide.

A Hispanic woman, 7 1/4, to 7 1/2 lunar months pregnant, was strangled to death by her common-law husband. After receiving information from an informant, a reporter uncovered the remains of the woman and fetus in a grave in a river bank near Eloy, Arizona. The remains were submitted by local law enforcement officials to the forensic pathologist for medicolegal examination. After this analysis, they were turned over to the consulting forensic anthropologist for positive identification of the mother and for fetal age determination to assess possible viability. During the 1970s and 1980s, viability for a fetus of this age was thought possible, although not probable. Prosecution of the common-law husband on the charge of first-degree murder of his wife was successful, whereas a comparable charge for the fetus was not sought. Many issues are raised, including gestational age estimation in relation to fetal viability. Fetal age is reassessed by means of measurements from diaphyseal lengths. These measurements allowed for comparability of fetal age estimations between published studies, with discussion of changing dates of fetal viability made possible through technologic advances. Because fetal viability changes with these advances, it is necessary to establish and update the guidelines for medicolegal practice.     

Spectra interference between diquat and paraquat by second derivative spectrophotometry

A rapid and accurate method, combining solid-phase extraction and second-order derivative spectrophotomety approaches, is developed for the simultaneous determination of diquat (DQ) and paraquat (PQ) in blood, tissue and urine samples. Supernatant resulting from the precipitation of protein (with trichloroacetic acid) in plasma and tissue or Amberlite IRA-401 resin treated urine are passed through a mini-column packed with Wakogel gel (Silica gel). Analytes are then eluted with a non-organic solvent, 0.2mol/l HCl solution containing 2mol/l NH(4)Cl. UV spectrum of the eluent in 220-350nm range provides effective screen to detect the presence of DQ and/or PQ. In the presence of DQ or PQ alone, the analyte present is quantitated by conventional zero- or second-order derivative spectrophotometry. The calibration curve in the 0.1-5.0mg/l range for either analyte obeys Beer's law. When both DQ and PQ are present, their concentrations are determined by the peak amplitudes of their respective second-derivative spectra after the addition of alkaline dithionite reagent. Interference is negligible when the DQ/PQ concentration ratio is within the 5.0-0.2 range.Using a 2-ml of sample size, the detection limits for DQ and PQ in plasma are 0.02 and 0.005mg/l. The corresponding detection limits for urine samples (10ml sample size) are 0.004 and 0.001mg/l. Recoveries of DQ and PQ in triplicate plasma and urine samples spiked with 0.5mg/l of analytes are 93 and 85%. The precision of the proposed method resulting from triplicate study of spiked urine samples varies from 3.2 to 4.6% at 0.5mg/l of DQ and PQ, respectively.     

Rupture of an intracranial aneurysm--unusual complication of an electric shock.

Here we report about a 35-year-old electrical engineer who was found dead in his study. Postmortem examination revealed that death resulted because of subarachnoid and intraventricular hemorrhage caused by the rupture of an intracranial aneurysm. Right hand and left cheek revealed electrical marks with metallizations on skin, an electric shock was diagnosed to have preceded death. The close temporal correlation suggests that a sudden rise in blood pressure was caused by the electric current and was thus responsible for the rupture of the aneurysm.     

Delimitation of the time of death by immunohistochemical detection of calcitonin.

To improve the possibilities of delimitating the time of death after longer laytime it was examined if this is possible by immunohistochemical detection of calcitonin. The results show that in our examination material the c-cells of the thyroid glands of up to 4-day-old corpses produce a positive immunoreaction towards calcitonin in all cases whereas none of the corpses older than 13 days show such a reaction. This means that in the case of a negative immunoreaction the time of death can be assumed to lie >4 days before the autopsy. The fact that a negative immunoreaction occurred consistently after 13 days leads to the conclusion that when calcitonin has been stained in a specimen, the death of the respective person must lie a maximum of 12 days earlier, whereby these time-limits may change in considerably different surrounding conditions.     

Y-chromosomal STR haplotype in the Japanese population.

Allele and haplotype frequencies of seven Y-chromosome STR loci from samples of 108 unrelated Japanese males living in Aichi Prefecture.     

Evidence for use of electroshock devices

The authors tested whether use of an electro shock weapon (stun gun) leaves marks on skin which can be found in an exterior examination. On pig skin such marks could not be produced postmortally. An experiment on one of the authors caused reddish skin marks which persisted for about 2 h. Inability to act as promised by the weapons' manufacturers did not occur in our experiments, exactly as previously described by other authors. Use of an air tester which shoots barbed electrodes ought to produce bleedings if the electrodes actually penetrate the skin.     

Contributions of Academic Research to Industrial Performance in Five Industry Sectors

Results are presented of a National Academy of Engineering consensus study that documents the contributions of academic research to the growth and competitiveness of five industries – aerospace; financial services; medical devices; network systems and communications; and transportation, distribution, and logistics services. Academic research has made substantial contributions in varying degrees to all five industries. These have ranged from graduates trained in modern research techniques, to fundamental concepts and “key ideas” out of basic and applied research, to the development of tools, prototypes, and marketable products, processes, and services. In network systems, there is a history of university involvement in serving as test beds for new networking concepts and in spawning firms. The academic medical center provides a distinctive environment for testing and incremental improvement of medical devices and for conducting essential clinical trials. In financial services, academic economics and mathematics research contributions have been important, in spite of the lack of a well-developed R&D infrastructure for the industry. Challenges and opportunities for enhancing academic research contributions are presented in the areas of regulatory research and innovation, service sector innovation, information technology, intellectual property rights, and the role and identity of the university.