Optimisation of cellular DNA recovery from tape-lifts

Adhesive tape-lifts are a commonly used technique for the recovery of DNA from forensic exhibits. Examination of large forensic exhibits or tape-lifts from old “cold” cases can make the direct submission of the tapes for extraction difficult. By applying a swab loaded with an organic solvent to the tape-lift, any DNA bound to the tape can be transferred and concentrated on to the swab head. Whilst removing any DNA, the tape's glue adhesive is also transferred. This requires a modified extraction technique that can dissolve the adhesive whilst maintaining the integrity of any DNA. Of several solvents tested, xylene was shown to be the solvent of choice, efficiently removing the adhesive and any bound DNA. A modified chelex extraction method, again incorporating xylene, provided optimal conditions for dissolving the adhesive and releasing the DNA for lysis.     

Multinational Corporations in World Development: 40 years on

In light of the 2014 Ecuador-sponsored resolution at the UN Human Rights Council to examine the link between Transnational Corporations and Human Rights, in this paper I review the first major discussion at the United Nations of the role of multinational corporations. The report on Multinational Corporations in World Development (1973) for the UN Department of Economic and Social affair launched the (then) new UN Centre on Transnational Corporations. I examine the report in some detail, compare and contrast this with the Ecuadorian resolution from 2014, and reflect on the continuities and changes in attempts to regulate the conduct of global corporations over the 40 years between these two moments.     

Patterns of Dating Violence Victimization and Perpetration among Latino Youth

Theory and research suggest that there may be significant heterogeneity in the development, manifestation, and consequences of adolescent dating violence that is not yet well understood. The current study contributed to our understanding of this heterogeneity by identifying distinct patterns of involvement in psychological, physical, and sexual dating violence victimization and perpetration in a sample of Latino youth (n?=?201; M?=?13.87 years; 42% male), a group that is understudied, growing, and at high risk for involvement in dating violence. Among both boys and girls, latent class analyses identified a three-class solution wherein the largest class demonstrated a low probability of involvement in dating violence across all indices (“uninvolved”; 56% of boys, 64% of girls) and the smallest class demonstrated high probability of involvement in all forms of dating violence except for sexual perpetration among girls and physical perpetration among boys (“multiform aggressive victims”; 10% of boys, 11% of girls). A third class of “psychologically aggressive victims” was identified for which there was a high probability of engaging and experiencing psychological dating violence, but low likelihood of involvement in physical or sexual dating violence (34% of boys, 24% of girls). Cultural (parent acculturation, acculturation conflict), family (conflict and cohesion) and individual (normative beliefs, conflict resolution skills, self-control) risk and protective factors were associated with class membership. Membership in the multiform vs. the uninvolved class was concurrently associated with emotional distress among girls and predicted emotional distress longitudinally among boys. The results contribute to understanding heterogeneity in patterns of involvement in dating violence among Latino youth that may reflect distinct etiological processes.     

Voices from Pattani: Fears,suspicion, and confusion

Abstract

By December 2005, violence in the South of Thailand had taken the lives of more than one thousand people. In this article, the voices of southerners are presented as they were recorded during the author's two-year stay in Pattani Province and various Malay-Muslim villages in southern Thailand. Verbatim excerpts from tok imams (religious teachers), overseas scholars, academics, fisherfolk, and locals of various ethnicity and religious groups illustrate perspectives and frustrations about the violence. Fears, suspicions, and confusion are the most prominent emotions embedded in these conversations. These excerpts illustrate the foremost concerns of the common people in the South, among them, impertinent threats to livelihood security and peaceful ethnic coexistence in the region.     

Screening for Malingering in a Correctional Setting

This study outlines the development of the Screening SIRS, an abbreviated version of the Structured Interview of Reported Symptoms (SIRS), for use as a screening measure of malingering in a correctional setting. Seventy-five inmates complaining of psychological impairment were tested for malingering. A subset of the participants was given both the original SIRS and the Screening SIRS as a separate test with the test order counterbalanced; the remainder were given the original SIRS and a derived classification was determined by extracting the Screening SIRS scale scores. Using Receiver Operating Characteristic analyses, classification based on the Screening SIRS was significantly better than chance. With a sensitivity of 87% and specificity of 73%, the Screening SIRS was highly predictive of classifications based on the original SIRS. These findings have instrumental implications in correctional settings where identification of possible malingerers through a screening procedure may facilitate optimal allocation of resources.