Perpetrator methodology as a predictor of traumatic symptomatology in adult survivors of childhood sexual abuse

This retrospective study explores, through quantitative and qualitative methods, the relationship of two variables (perpetrator relationship and perpetrator methodology) to posttraumatic and dissociative symptomatology. The quantitative sample comprised a nonpsychiatric group (N = 39) of Australian adults reporting sexual abuse histories. A MANOVA revealed that current levels of posttraumatic and dissociative symptomatology were significantly higher in the group reporting sexual abuse by a perpetrator in a relationship of trust, guardianship, or authority. The qualitative sample comprised a purposively selected subgroup of the quantitative sample (n = 20). Thematic content analyses of perpetrator methodology suggest that perpetrator strategies involving emotional manipulation, rather than the perpetrator relationship per se, appear to differentiate between groups with clinical or nonclinical levels of post traumatic and dissociative symptomatology. The combination of qualitative and quantitative methods provides integrated, contextualized data with implications for future research and clinical practice.     

Analysis of ancient human DNA and primer contamination: one step backward one step forward

The analysis of DNA from archaeological human remains is plagued by a unique set of methodological problems concerning contamination with modern exogenous DNA. Through an original approach, we propose complementary methods to identify all potential sources of contamination and complete guidelines for the validation of ancient human sequences. The study presented was conducted on non-European human samples (Polynesian and Amerindian) which were collected with all precautions during excavation. This permitted us to distinguish without ambiguity authentic and contaminant sequences. The samples' origins and histories were perfectly known, allowing us to trace all potential contamination sources and to determine the efficiency of precautions followed during all steps of the study. The data obtained confirm that precautions taken during sampling effectively prevent contamination. However, we demonstrate that human contamination can also be introduced during genetic analyses even if all precautions are strictly followed. Indeed, numerous human contaminations were detected in template-PCR products and negative controls, resulting in a striking diversity of contaminant mitochondrial DNA sequences. We argue that this contamination partly derives from the primers. To our knowledge, no previous experiment has been performed to investigate primers as a possible source of human contamination despite the fact that this specific type of contamination poses a real problem in terms of validating ancient human DNA studies. Finally, we confirm that the detection of contaminants in negative controls is clearly related to the number of PCR cycles used. This study enhances our understanding of contamination processes and confirms that, in reality, an absolutely contamination-free situation cannot be obtained. As a consequence, we propose improvements to the guidelines usually followed in the field in order to take the highly probable contamination of PCR reagents, including primers, into account.     

Best practice for rural food security projects in Southern Africa?

It has been widely believed that commercialisation is the solution to food insecurity in rural Africa. Project designs have attempted to set up agricultural cooperatives and encourage entrepreneurial farmers. Yet the problems revealed in the 1950s are still widespread. In a counter-perspective, some have argued for the relevance of subsistence and low-input agriculture. This article examines three NGO projects in South and South-eastern Africa which prioritise food security through household subsistence, using low-input technologies, along with an encouragement to produce a surplus for cash. We look at what these projects share and why their strategies work.     

URBAN DEVELOPMENT ACTION GRANTS REVISITED

The Urban Development Block Grant (UDAG) program evolved from preceding programs in aid of distressed communities, including permitting local officials and private businesses wide berth in making deals for UDAG utilization and actively recruiting small cities to participate. This case study examines the impact these evolutionary departures had in two small cities—Follansbee, WV, and Farrell, PA—which received multi-million dollar UDAGs for steel projects in 1984 and 1988, respectively. Although the two cities had much in common economically, their use of UDAG funds was quite dissimilar. Outcomes were vastly disparate, raising questions about the ability of small communities, particulary those dominated by one declining company, to make appropriate decisions regarding program participation, as well as larger issues of federal intervention.     

Prevalence of sexual abuse in organised competitive sport in Australia

Abstract

This article reports the first phase of a three-phase research programme investigating the prevalence and long-term sequelae associated with sexual abuse in a non-psychiatric sample of male and female Australian athletes. A cross-sectional, retrospective design, using a mailed survey, provided a quantitative assessment of sexual abuse prevalence in a national sample of elite athletes and a regional sample of club athletes. Results from the total sample (n = 370) revealed that 31% of female and 21% of male athletes reported experiencing sexual abuse at some time in their lives. Of these, 41% of females, and 29% of males had been sexually abused within the sports environment. It was also found that almost half, 46.4%, of the elite group reporting sexual abuse had been sexually abused by sports personnel. For the club group, this figure was 25.6%. Implications of these results and current initiatives for the prevention of sexual abuse of athletes in Australia are discussed.     

Radical Reformism and the Marxist Critique

The mainstream environmental movement has tended to accept the continuation of capitalism and the growth economy. A de-materialization is hoped to follow from limits on the use of natural resources. Eco-Marxists have opposed this strategy, claiming environmental problems are intrinsic to capitalism. More recently a tendency which I will call “radical reformism” has been gaining strength. Radical reformists argue that a growth economy is not compatible with environmental limits. They look to regulate capitalism to prevent growth. The overall intention is for a peaceful transition within a broadly capitalist economy. The eco-Marxist critique of mainstream environmentalism can also be applied to radical reformism. While radical reformists may have some answers to this critique, these answers bring further problems.     

Corneal‐Smart Phone: A novel method to intelligently estimate postmortem interval

The changes of postmortem corneal opacity are often used to roughly estimate the postmortem interval (PMI) in forensic practice. The difficulty associated with this time estimate is the lack of objective means to rapidly quantify postmortem corneal changes in crime scenes. This study constructed a data analysis model of PMI estimation and implemented an intelligent analysis system for examining the sequential changes of postmortem corneal digital images, named Corneal‐Smart Phone, which can be used to quickly estimate PMI. The smart phone was used in combination with an attachment device that provided a darkroom environment and a steady light source to capture postmortem corneal images. By segmenting the corneal pupil region images, six color features, Red (R), Green (G), Blue (B), Hue (H), Saturation (S), Brightness (V) and four texture features Contrast (CON), Correlation (COR), Angular Second Moment (ASM), and Homogeneity (HOM), were extracted and correlated with PMI model. The results indicated that CON had the highest correlation with PMI (R² = 0.983). No intra/intersubject variation in CON values were observed (p > 0.05). With the increase in ambient temperature or the decrease in humidity, the CON values were increased. PMI prediction error was <3 h within 36 h postmortem and extended to about 6–8 h after 36 h postmortem. The correct classification rate of the blind test samples was 82%. Our study provides a method that combines postmortem corneal image acquisition and digital image analysis to enable users to quickly obtain PMI estimation.