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961.
Anastos N Barnett NW Lewis SW Pearson JR Kirkbride KP 《Journal of forensic sciences》2005,50(5):1039-1043
A simple and rapid method for the analysis of carbohydrates in heroin samples by capillary electrophoresis utilizing a borate complexation method is described. Separations were performed using an uncoated fused silica capillary, 50 cm x 50 micro I.D. x 360 microm O.D. with an effective separation length of 9 cm. The system was run at 60 degrees C with an applied voltage of -8 kilovolts. Injection of each sample was for 1 sec at -50 mbar. UV detection was employed with the wavelength set at 195 nm. The background electrolyte consisted of 65 mM borate, pH 12.0. Samples and standards were prepared in the run buffer containing 2 mg/mL of mannose as an internal standard. Under these conditions a test mixture containing glucose, sucrose, lactose, mannitol and mannose as an internal standard was resolved within 5 min. The method was used to determine the concentration of carbohydrates in heroin seizure samples and synthetic heroin samples. The results were in good agreement with the reported values. 相似文献
962.
Paul?VedderEmail author Monique?Boekaerts Gerard?Seegers 《Journal of youth and adolescence》2005,34(3):269-278
This paper reports on the relationship between early adolescents’ evaluation of the availability of instructional and social support from parents, teachers, and peers and their well-being. The main questions are whether indigenous and immigrant youngsters differ in their evaluation of the availability of support and whether the relationship varies by group. Participants in the study were 245 Dutch and 172 Turkish/Moroccan 10- to 13-year olds with a lower class background. Both Dutch and immigrant youngsters clearly distinguish between the various agents of support. Dutch youngsters report more instructional support from their parents than from their teacher, whereas immigrant youngsters report more instructional support from their teacher. Both for Dutch and immigrant students, parents were seen as the primary providers of emotional support. Reported well-being in the classroom was related to available teacher support and to the frequency of occurrence of learning-related problems.Paul Vedder is an associate professor trained in developmental psychology. He received his PhD in 1985 from Groningen University, in the Netherlands. His main research interest is with self regulated learning, social competence, cooperative learning, and interethnic relationshipsMonique Boekaerts is a full professor trained as an educational psychologist. She received her PhD in 1978 from Tilburg University in the Netherlands. Her field of expertise is self regulated learning, motivation and emotions.Gerard Seegers is an assistant professor working in the field of self regulated learning, mathematics and ICT. He received his PhD in 1985 from Nijmegen University in the Netherlands. All authors are working at the Center for the Study of Education and Instruction at Leiden University in the Netherlands. 相似文献
963.
“Institutionalized science ethics” refers to the statutory, professional and institution-based ethical standards that guide
and constrain scientists' research work. The primary institution responsible for implementing institutionalized science ethics
is the Institutional Review Board. We examine the limitations of IRBs and institutionalized science ethics, using bureaucratic
theory and, especially, theory related to the development and enactment of rules. We suggest that due to the very character
of rules-based systems, improvements in IRB outcomes are unlikely to be achieved through either more or better rules or even
by bureaucratic reform. Instead, we suggest that improvements in human subject protection can best be advanced through increased
participation. Ours is not a call for more participation by the general public but participation, via “Participant Review
Boards” of persons who are eligible, by the protocols of the research in question, to serve as subjects. This provides a level
of legitimacy and face validity that cannot be obtained by IRB affiliates, even by “external representatives.” In making these
points, we review a recent science ethics controversy, the KKI/Johns Hopkins lead paint study. In spite of being approved
by IRBs, the study resulted in a civil lawsuit that reached the Maryland Court of Appeals. The case illustrates the limits
of institutionalized science ethics and the bureaucracies created for their enactment. The case also underscores the complex
and equivocal nature of the ethical guidelines established under the National Research Act.
We are grateful to – for providing helpful comments on an earlier draft. 相似文献
964.
Paul Magnette 《European Law Journal》2001,7(3):292-310
The parliamentary model at the heart of European civic cultures has deeply influenced ‘Constitutional reforms’ in the European Community. But the EC is not a Parliamentary state and the transplant of national institutions in its own political context gives rise to hybrid practices. This paper examines this process of hybridation, and shows that new practices of appointment and censure are emerging in the Community, mixing classic parliamentary institutions with the crucial features of the EC itself. Focusing on recent tensions between the Council, the Commission, and the European Parliament, it shows that they are governed by national divisions, technocratic and legal reasoning rather than by classic majoritarian attitudes. It concludes that, while this new model of accountability might prove efficient in terms of inter‐institutional controls, it remains symbolically inefficient, because it does not help citizens understand and accept the Community institutional model. 相似文献
965.
MacKenzie RD Mullen PE Ogloff JR McEwan TE James DV 《Journal of forensic sciences》2008,53(6):1443-1449
Attachment theory is one of the earliest and most vigorously promoted explanations of the psychological processes that underlie stalking behavior. Insecure attachment has been proposed as impairing the management of relationships, thus increasing the propensity to stalk. The current study explored the parental bonding and adult attachment styles of 122 stalkers referred to a specialist forensic clinic. Stalkers were grouped according to two common classification methods: relationship and motivation. Compared to general community samples, stalkers were more likely to remember their parents as emotionally neglectful and have insecure adult attachment styles, with the degree of divergence varying according to stalker type and mode of classification. In offering support for the theoretical proposition that stalking evolves from pathological attachment, these findings highlight the need to consider attachment in the assessment and management of stalkers. Also emphasized is the importance of taking classification methods into account when interpreting and evaluating stalking research. 相似文献
966.
Medical examiners are often first to recognize unusual occurrences of fatal infectious diseases. Recognition of these deaths allows public health officials to institute appropriate public health measures. Therefore, we developed a simple method of identifying and tracking infectious disease deaths in a statewide medical examiner's office. One-page infectious disease forms were completed for 1566/1949 autopsies (80%) performed at the New Mexico Office of the Medical Investigator in 2004. In 241 cases one infectious disease was identified at autopsy and 58 cases had two infectious diseases. Fourteen of the infectious-diseases caused deaths involved diseases that are notifiable conditions in New Mexico. Pneumonia was the most commonly reported infectious process (47 deaths) followed by sepsis (25 deaths). Tracking infectious disease deaths highlighted the importance of recognizing these deaths, although hand-written entries were unstandardized. Preferably, a tracking system would be built into electronic databases at medical examiner and coroner's offices, expediting the identification of these diseases and contact of public health agencies. 相似文献
967.
Kimonis ER Frick PJ Skeem JL Marsee MA Cruise K Munoz LC Aucoin KJ Morris AS 《International journal of law and psychiatry》2008,31(3):241-252
The presence of callous-unemotional (CU) traits designates an important subgroup of antisocial youth. To improve upon existing measures, the Inventory of Callous-Unemotional Traits (ICU) was developed to provide an efficient, reliable, and valid assessment of CU traits in samples of youth. The current study tests the factor structure and correlates of the ICU scale in a sample (n=248) of juvenile offenders (188 boys, 60 girls) between the ages of 12 and 20 (M=15.47, SD=1.37). Confirmatory factor analyses are consistent with the presence of three independent factors (i.e., Uncaring, Callousness, and Unemotional) that relate to a higher-order callous-unemotional dimension. Also, CU traits overall showed associations with aggression, delinquency, and both psychophysiological and self-report indices of emotional reactivity. There were some important differences across the three facets of the ICU in their associations with these key external criteria. 相似文献
968.
South Africa currently has a high homicide rate. This results in a large number of unidentified bodies being recovered each year, many of which are referred to the forensic examiner. This situation has resulted in considerable growth of forensic anthropological research devoted to devising standards for specific application in South African medico-legal investigations. The standards suitable for Black South Africans now encompass a wide variety of skeletal elements (e.g. cranium, humerus, pelvis, femur, patella, talus, calcaneus), each with differing degrees of accuracy. Apart from a preliminary investigation of the Zulu local population, however, we note that there appears to be no established metric mandible discriminant function standards for sex determination in this population. The purpose of the present study is to undertake a comprehensive analysis of sexual dimorphism in the mandible of Black South Africans, incorporating individuals from a selection of the larger local population groupings; the primary aim is to produce a series of metrical standards for the determination of sex. The sample analyzed comprises 225 non-pathological mandibles of Black South African individuals drawn from the R.A. Dart Collection. Nine linear measurements, obtained from mathematically transformed three-dimensional landmark data, are analyzed using basic univariate statistics and discriminant function analyses. All of the measurements examined are found to be sexually dimorphic; the dimensions of the ramus and corpus lengths are most dimorphic. The sex classification accuracy of the discriminant functions ranged from 70.7 to 77.3% for the univariate method, 81.8% for the stepwise method, and 63.6 to 84% for the direct method. We conclude that the mandible is a very useful element for sex determination in this population. 相似文献
969.
Hyperspectral imaging combined with multivariate statistics is an approach to microanalysis that makes the maximum use of the large amount of data potentially collected in forensics analysis. This study examines the efficacy of using hyperspectral imaging-enabled microscopies to identify chemical signatures in simulated bioagent materials. This approach allowed for the ready discrimination between all samples in the test. In particular, the hyperspectral imaging approach allowed for the identification of particles with trace elements that would have been missed with a more traditional approach to forensic microanalysis. The importance of combining signals from multiple length scales and analytical sensitivities is discussed. 相似文献
970.
Barringer PJ Studdert DM Kachalia AB Mello MM 《Journal of health politics, policy and law》2008,33(4):725-760
Periods in which the costs of personal injury litigation and liability insurance have risen dramatically have often provoked calls for reform of the tort system, and medical malpractice is no exception. One proposal for fundamental reform made during several of these volatile periods has been to relocate personal injury disputes from the tort system to an alternative, administrative forum. In the medical injury realm, a leading incarnation of such proposals in recent years has been the idea of establishing specialized administrative "health courts." Despite considerable stakeholder and policy-maker interest, administrative compensation proposals have tended to struggle for broad political acceptance. In this article, we consider the historical experience of administrative medical injury compensation proposals, particularly in light of comparative examples in the context of workplace injuries, automobile injuries, and vaccine injuries. We conclude by examining conditions that may facilitate or impede progress toward establishing demonstration projects of health courts. 相似文献