Youthful Familicidal Offenders: Targeted Victims,Planned Attacks

A nonrandom national sample of 16 familicides, which involved 19 offenders (ages 14 to 21 years) who either killed or made a serious attempt to kill their families, was studied. The majority of offenders were Caucasian (78.91 %) males (84.21 %) with interpersonal family conflicts due to parental control, substance use, or physical violence. Prior to the murders, 50 % of the offenders reported to others their intent to kill their families. All of the 42 reported victims were specifically targeted and most of the homicides were planned shooting attacks (75 %) rather than spontaneous eruptions. Immediately following the homicides, 75 % of the offenders stole money from their families, and in 50 % of the cases they either called their friends to report the murders or to plan leisure activities. All offenders were immediate suspects and 81.25 % confessed to the homicides. Implications for furthering our understanding of this group of young offenders are offered.     

Analysis of body fluid mixtures by mtDNA sequencing: An inter-laboratory study of the GEP-ISFG working group

The mitochondrial DNA (mtDNA) working group of the GEP-ISFG (Spanish and Portuguese Group of the International Society for Forensic Genetics) carried out an inter-laboratory exercise consisting of the analysis of mtDNA sequencing patterns in mixed stains (saliva/semen and blood/semen). Mixtures were prepared with saliva or blood from a female donor and three different semen dilutions (pure, 1:10 and 1:20) in order to simulate forensic casework. All labs extracted the DNA by preferential lysis and amplified and sequenced the first mtDNA hypervariable region (HVS-I). Autosomal and Y-STR markers were also analysed in order to compare nuclear and mitochondrial results from the same DNA extracts. A mixed stain prepared using semen from a vasectomized individual was also analysed. The results were reasonably consistent among labs for the first fractions but not for the second ones, for which some laboratories reported contamination problems. In the first fractions, both the female and male haplotypes were generally detected in those samples prepared with undiluted semen. In contrast, most of the mixtures prepared with diluted semen only yielded the female haplotype, suggesting that the mtDNA copy number per cell is smaller in semen than in saliva or blood. Although the detection level of the male component decreased in accordance with the degree of semen dilution, it was found that the loss of signal was not consistently uniform throughout each electropherogram. Moreover, differences between mixtures prepared from different donors and different body fluids were also observed. We conclude that the particular characteristics of each mixed stain can deeply influence the interpretation of the mtDNA evidence in forensic mixtures (leading in some cases to false exclusions). In this sense, the implementation of preliminary tests with the aim of identifying the fluids involved in the mixture is an essential tool. In addition, in order to prevent incorrect conclusions in the interpretation of electropherograms we strongly recommend: (i) the use of additional sequencing primers to confirm the sequencing results and (ii) interpreting the results to the light of the phylogenetic perspective.     

PMICALC: An R code-based software for estimating post-mortem interval (PMI) compatible with Windows,Mac and Linux operating systems

In legal medicine the correct determination of the time of death is of utmost importance. Recent advances in estimating post-mortem interval (PMI) have made use of vitreous humour chemistry in conjunction with Linear Regression, but the results are questionable. In this paper we present PMICALC, an R code-based freeware package which estimates PMI in cadavers of recent death by measuring the concentrations of potassium ([K+]), hypoxanthine ([Hx]) and urea ([U]) in the vitreous humor using two different regression models: Additive Models (AM) and Support Vector Machine (SVM), which offer more flexibility than the previously used Linear Regression. The results from both models are better than those published to date and can give numerical expression of PMI with confidence intervals and graphic support within 20 min. The program also takes into account the cause of death.     

“The big sleep: Elucidating the sequence of events in the first hours of death to determine the postmortem interval”

Recent developments on postmortem interval estimation (PMI) take an advantage of the autolysis process, pointing out to the analysis of the expression of apoptosis and autophagy genes towards this purpose. Oxidative stress plays a role in this signaling as a regulatory mechanism and/or as a consequence of cell death. Additionally, melatonin has been implicated on apoptosis and autophagy signaling, making melatonin a suitable target for PMI determination. The aim of this study was to investigate the early PMI through the analysis of the expression of autophagy genes as well as oxidative stress and melatonin receptor. Our results demonstrated a rapidly increased on the expression of autophagy genes according to the expected sequence of events, then a marked decrease in this expression, matched with the switch to the apoptosis signaling. These results revealed potential candidates to analyze the PMI in the first hours of death, helping to estimate the time-since-death.     

Reconstructing Indigenous ethnicities: the Arapium and Jaraqui peoples of the lower Amazon, Brazil

In Latin America, indigenous identity claims among people not previously recognized as such by the state have become a key topic of anthropological and sociological research. Scholars have analyzed the motivations and political implications of this trend and the impacts of indigenous population's growth on national demographic indicators. However, little is known about how people claiming indigenous status constructs the meaning of their indigenous ethnicity. Drawing from sixty-four indepth interviews, focus-group analyses, and participant observation, this article explores the double process of identity construction: the reconstruction of the Arapium indigenous identity and the creation of the Jaraqui indigenous identity in Brazil's Lower Amazon. The findings reveal six themes that contribute to the embodiment of a definition of indigenous identity and the establishment of a discursive basis to claim recognition: sense of rootedness, historical memory, historical transformation, consciousness, social exclusion, and identity politics.     

Pushing the Boundaries of Education: Evaluating the Impact of Second Step®: A Violence Prevention Curriculum with Psychosocial and Non-Cognitive Measures

The Second Step® violence prevention curriculum was implemented in a large urban school district as part of a comprehensive three-year initiative to impact students at-risk for violence and substance abuse. An outcome evaluation was conducted to assess the intervention's effectiveness on students’ attitudes and on behaviors important for accountability. Results indicated improvements in students’ prosocial attitudes and behaviors that were consistent across two large cohorts of students. Implications for theory and future research are discussed.     

Vitalism's after-burn: The sense of Ana Mendieta

This article considers the influential work of Ana Mendieta. Focusing on her siluetas series, Muñoz describes Mendieta's art as performing a modality of brownness that leaves resonant indentions on the world, what he calls vital materialist after-burns. Mendieta's after-burns are read alongside the poet's of Négritude and their investment in a critical élan vital that speaks to the historical precariousness of dispossessed people. The artist's work is explained as a meditation on a critical brownness that is theorized as the sharing out of the unshareable, the invaluable and the incalculable.?Mendieta's intervention is ultimately described as the work of offering a brown sense of the world in which singularities flow into a politically enabling common.     

The Bologna Process: Impact on Interdisciplinarity and Possibilities for Women's Studies

This article discusses the impact of the so‐called Bologna process on possibilities for interdisciplinary higher education and research, in particular in relation to Women's Studies. Based on findings from two European research projects, it argues that the spaces open to interdisciplinarity and Women's Studies in higher education under the Bologna process are strongly marked by national systems and their interpretations of the Bologna requirements. The opportunities in the educational field (whether at undergraduate or post‐graduate level) to innovate and flexibilize, key requisites for Women's Studies as a discipline, are impaired by institutional structures of administration, research, evaluation, accreditation and career development that rely on disciplinarity as their core categories. The Nordic countries seem to have moved more clearly than others, such as Hungary or Spain, towards an implementation of the Bologna agreement in a manner that facilitates both interdisciplinarity and Women's Studies.