Mitochondrial DNA amplification success rate as a function of hair morphology

This study examines the amplification success rate of mitochondrial DNA from human head hair with respect to their potential for forensic application. Mitochondrial DNA was isolated using a Chelex-based extraction method and amplified using the LINEAR ARRAY duplex PCR system. The particular focus of this study was to characterize the morphological features of human head hair in order to further the understanding of the factors that influence amplification success rate in hair tissue using the LINEAR ARRAY duplex PCR system. 2554 head hairs from 132 individuals representing four population groups were amplified. The hair samples were characterized as follows: 1251 were identified microscopically as telogen hairs and 1303 were classified as hairs without roots (removed before extraction). Amplification success was assessed as a function of several independent variables: morphological characteristics; telogen root versus no root; donor age; scalp origin; use of cosmetic hair treatments; and race of the donor. The results show that a positive correlation exists between amplification success and the presence of a telogen root. Combining the amplification success with either the original or optimized protocol, telogen hairs result in an overall success rate of 77.5% compared with 65% for hairs with no roots. Controlling for telogen hairs, the findings indicate that the overall success rate is independent of cosmetic hair treatments; medulla structure; shaft length, diameter, and volume; and scalp origin. Conversely, the age of the donor, the race of the donor, and hair pigmentation all contribute to a variation in amplification success rate.     

Latent Profile Approach to Duration of Stalking

Abstract: Stalking behavior and victim–stalker relationship are often the principal known factors in a stalking case. Thus, they are of great importance when trying to identify factors contributing to stalking duration. The present study aims to identify distinct subgroups of stalking victims based on measures of behavioral stalking dimensions. These victim subgroups, stalking dimensions, and victim–stalker relationship are examined in relation to stalking duration. Using a sample of 137 university students, latent profile analysis (LPA) revealed five distinct victim subgroups based on stalker behavior dimensions: surveillance, low‐profile, social lurker, wide scope, and baseline stalkers. The subgroups were significantly related to stalking duration and explained a considerable amount of the variance along with the stalking dimensions and victim–stalker relationship. Connections to stalking literature and utility of person‐orientated methods in stalking research are discussed.     

EU update

This is the latest edition of Baker &; McKenzie's column on developments in EU law relating to IP, IT and telecommunications. This article summarises recent developments that are considered important for practitioners, students and academics in a wide range of information technology, e-commerce, telecommunications and intellectual property areas. It cannot be exhaustive but intends to address the important points. This is a hard copy reference guide, but links to outside web sites are included where possible. No responsibility is assumed for the accuracy of information contained in these links.     

Green energy and black economy: mafia investments in the wind power sector in Italy

In recent years, the EU has supported actions to develop the green economy. Among these, incentives to sustain the growth of the wind power (WP) sector were welcomed as strategic for promoting environmental sustainability. This paper argues that the enthusiasm in supporting the green economy, without a preliminary assessment for crime opportunities, could end up fueling the black one. In particular, looking at the Italian case, the intention to facilitate wind farm construction provided remarkable (economic and procedural) incentives but neglected the issue of crime infiltration in the legitimate economy. Consequently, investments in wind farms also became a very lucrative business for organized crime (OC) groups. Through an analysis of the WP sector in Italy, this paper aims to show that, in territories characterized by a significant presence and control of OC groups, regulation could have an adverse effect providing opportunities for OC infiltrations in the legitimate economy. In particular this paper discusses whether investments in the WP sector in Italy are more likely in those regions with higher levels of OC presence and analyzes the role played by OC groups in cases of criminal infiltrations in the WP sector.     

Positive Youth Development Among African American Adolescents: Examining Single Parents as a Factor

Over the past few decades researchers have begun to examine the importance of understanding positive youth development and the many contexts in which youth find themselves. The social contexts in which adolescent development occurs are varied and complex, particularly the development among African American youth. African American youth are faced with a number of challenges including living in single-parent homes, high teen pregnancy rates, and poor neighborhoods, yet many of these youth continue to thrive. The purpose of this study was to examine the relationship between family structure (single-parenting) and adolescent outcomes such as educational aspirations and sexual activity among African American adolescent youth aged 12–17. Approximately 462 African American youth were surveyed. A number of positive results emerged; for instance, there was a negative correlation between family structure and educational aspirations. The number of parents in the home did not interfere with youth wanting to complete high school and go on to college (r = ? .218, r² = .04, p < .05). The results also showed that as educational aspirations increased, the number of sexual partners decreased (r = ? .141, meaning that the more adolescents reported a desire to complete high school, they were less likely to report having sexual intercourse. These positive results should be promoted among African American youth so that those faced with these challenges will note that others have overcome and accomplished their goals. In this population educational aspirations were important. Limitations and future research are discussed.     

Assessing the Health Behaviors of African American Emerging Adults

The purpose of this article was to assess the overall health behaviors of African American emerging adults who live in a Midwestern city. Two hundred participants, ages 18–25, completed a 129-item survey. Results indicate that African American emerging adults are engaged in relatively healthy behaviors (i.e., physical activity, low substance use). The results also showed that within the emerging adult developmental period, there are differences in behavior for those who are in the younger (18–20) versus those that are older (21–25) in the developmental period. Limitations, future research, and implications for practice will also be discussed.     

New politics for a New Germany? Transatlantic perspectives

Parties and Politics in Modern Germany. By GERARD BRAUNTHAL. Boulder, CO and Oxford: Westview Press, 1996. Pp.xii + 212, appendix, biblio, index. £44.50 (cloth); £13.50 (paper). ISBN 0–81333–2382–7 and ‐2383–5.

Germany's New Politics. Edited by DAVID P. CONRADT, GERALD R. KLEINFELD, GEORGE K. ROMOSER and CHRISTIAN SOE. Providence and Oxford: Berghahn Books, 1995. Pp.x + 325, biblio. £25 (cloth); £11.50 (paper). ISBN 1–57181–032–3 and‐033–1.

The Federal Republic of Germany at Forty‐Five. Edited by PETER H. MERKL. Basingstoke and London: Macmillan, 1995. Pp.xiv + 500, index. £47.50. ISBN 0–333–61754–1.