A validation study for the extraction and analysis of DNA from human nail material and its application to forensic casework.

A validation study was conducted to demonstrate that deoxyribonucleic acid (DNA) could be successfully extracted from human nail material and analyzed using short tandem repeat (STR) profiling and/or mitochondrial DNA (mtDNA) sequencing. This study involved the development of a DNA extraction protocol that includes a cleaning procedure designed to remove external contaminants (e.g., biological, chemical). This protocol was used to test human nail material that had been soaked in whole blood from a second donor and coated with gold-palladium to simulate scanning electron microscopic analysis. The results showed no indication of a mixture and were consistent with that of the nail donor. Fresh human nail material usually yielded both STR profiles and mtDNA sequence information; however, aged human nail material (approximately eight years old) yielded only mtDNA sequence information. Upon completion of the validation study, the extraction protocol was used for the analysis of a torn fingernail fragment recovered from the scene of a violent homicide in 1983. A partial STR profile and mtDNA sequence information indicated that the fingernail fragment was excluded as originating from the suspect and was, in fact, consistent with originating from one of the victims.     

Sexual Attitudes and Behaviors Among Adolescents

The purpose of this article is to examine the self-reported sexual attitudes and behaviors of adolescents living in the Midwest. A survey was administered to 463 African American youths ages 11–19. The results indicate that intent to have sexual intercourse, reported likelihood toward having sexual intercourse, and whether participants felt that they would have sex in the next 3 months were predictors of whether they had sexual intercourse at the 3-month follow-up. The results also revealed that the opinions of referent others did not predict sexual intercourse at 3 months. Negative attitudes toward condoms did predict condom use at 3 months and the opinions of referent others also predicted condom use at 3 months. Limitations as well as future research are also discussed.     

澳大利亚、新西兰、香港、加拿大传闻法律改革及酝酿中的改革——以“先前不一致陈述”为重要视角

本文概览了澳大利亚、加拿大、新西兰、香港等四个主要的环太平洋普通法系国家和地区的传闻法律改革,尤其关注与先前不一致陈述相关的改革。指出先前不一致陈述事关"被告人获得公平对待"以及"证人的人权"等基本原则,因此,如何对待先前不一致陈述将成为一项有效的指标,通过该指标。我们得以评价传闻法律改革中的关键原则以及个人权利在大多数严重犯罪的起诉、审判过程中的境况。认为无论借助成文法还是借助先例,公正的传闻法改革应当适用某些相互一致的基本原则,包括放宽采纳传闻的条件决不能以错案数量增长或不公正审判为代价,将传闻改革与保护被告人、证人的基本权利紧密联系起来,保护证人不受任何形式的强迫或不当侦查行为的干扰,辩护律师必须能够无拘束地对陈述可采性加以质疑,通过充分、及时地开示证据来分析有争议的证据的可采性等。     

Neck extension as a cause of SIDS

The intradural sagittal diameter at the second cervical vertebra (SD/C2) of 62 SIDS cases was measured myelographically. This SD/C2 proved to be dependent on body size, body weight, and age. A clear, age-dependent difference is to be found in the primarily narrow spinal canal. This parameter (SD/C2), which is more precisely defined in adults on the basis of clinical, radiological, and autopsical findings is assumed to have the value of 0.5 cm in the first 2 months, 0.6 cm in the third month, and 0.65 cm in the fourth month. The resulting potential danger to infants is dependent upon their position. The SD/C2, was significantly decreased in extension as compared to a neutral posture. With consideration of the primarily narrow spinal canal in the infant, there is, according to our measurements, a potential hazard for the infant in any further, significant shortening of the SD/C2. This is independent of the width of the spinal canal under maximal extension. We found individual cases in which the SD/C2 was decreased by almost 50% from the normal value in neutral position. No correlation was found between the primary width of the spinal canal and the degree of luminal reduction upon extension.     

Psychopathy and Female Gender: Phenotypic Expression and Comorbidity; A Study Comparing a Sample of Women Hospitalized in Italy's Maximum Security Facility with Women Who were Criminally Sentenced and Imprisoned,

Various studies have shown that women with psychopathy tend to commit crimes that are less violent than those of psychopathic men. The present study was designed to address the influence of psychopathy on the crimes committed by female offenders. A national sample of female offenders found NGRI or of diminished responsibility and at risk for criminal recidivism (OPG patients) was compared with a sample of female offenders who were convicted and imprisoned. Results of this comparison between the two groups of female offenders indicate that psychopathy is a transversal psychopathological dimension which may or may not be associated with other mental disorders. In both samples, the most commonly reported offenses among women with high PCL‐R scores were minor offenses, not particularly violent, but they appear to be related to typical psychopathic features such as superficial charm, pathological lying, and manipulation.     

Public Opinion and Collective Obligations

This article attempts to identify the general principles that underlie public reasoning about collective obligations and that help explain when political parties can create new obligations or defend existing ones. I use these principles to President Clinton’s unsuccessful attempt to create government health-care plan and attempts by President Bush to privatize Social Security. The success of a party in selling – or defeating – an obligation depends upon what people believe about the competence and capacity of government and the value of autonomy – choices made by each citizen; whether people perceive the obligation as providing floors or establishing ceilings by limiting choice or otherwise restricting opportunities for the better-off; and whether the program is more like insurance or more like welfare. A party’s ability to maintain credibility with voters also depends upon whether party leaders can suppress issues that threaten intra-party elite pacts. When attempts to suppress “taboo” issues like “stem cells” or “black crime” fail, the party loses credibility with its voters and attempts to defend or sell obligations fail.

Assessment of competency for execution? A guide for mental health professionals

Assessment of competency for execution presents two compelling ethical questions for mental health professionals: whether clinicians can ethically provide such assessment, and if so, how it should be done in order to maximize quality and minimize ethical conflict. In this article we address the issue of whether to participate and, if so, how. The question of whether to participate is discussed by summarizing the arguments for and against participation and offering guidelines for making a decision. The question of how to proceed is discussed in two contexts: preadjudication (before a formal decision about competency) and postadjudication (following a determination of "incompetent" and transfer of the offender to another facility for treatment and further assessment). Finally, recommendations are made regarding research that would improve the quality of execution competency assessments.