Results of the 2008 Colombian paternity testing quality control exercise

The Reference National Laboratory, Genes Ltda, designated by the Commission of Accreditation and Alertness created by Law 721 of 2001 of Republic of Colombia, organized and coordinated the Quality Control Exercise of 2008 for laboratories undertaking paternity and maternity tests with DNA markers. The Quality Control Exercise included both practical and theoretical exercises. For the practical exercise, three blood samples in FTA Classic Card were sent to each participating laboratory to be genotyped for DNA markers using the routine methodologies in their laboratories. For the theoretical exercise, it was asked to the participating laboratories to calculate the partial and final paternity indexes based on two genetic profiles of an alleged biological father and his son. Allele frequencies were made available to the participants, as well as Y chromosome haplotype database. A total of 12 laboratories have participated with data from 57 STRs, including autosomal and sex chromosome markers. Consensus was found in 37 STRs, 21 in autosomes and 16 Y chromosome linked. The rate of reporting errors was 3.1% (concentrated in just one laboratory). The theoretical exercise had consensus.     

Risk Exposure,Humanitarianism and Willingness to Pay for Universal Healthcare: A Cross-National Analysis of 28 Countries

Social Justice Research - In this article, we explore the associations of people’s valuations of universal healthcare with risk exposure and humanitarianism across diverse institutional...     

College students’ perceptions of police use of force: do suspect race and ethnicity matter?

Incidents of police use of force continue to draw a considerable amount of attention from both researchers and the public alike. The purpose of this research is to examine the relationship between suspect race and ethnicity and perceptions of police use of force among college students. Using a vignette research design with manipulated independent variables, this study seeks to answer the question: Do suspect race and ethnicity affect college students’ perceptions of police use of force? Three vignettes were developed regarding an incident in which an encounter between a suspect and a police officer resulted in the officer using force. College students were randomly assigned to one of the three vignettes and were asked to complete a questionnaire. Results indicate that although suspect race and ethnicity do not predict perceptions of police use of force among college students, there are significant respondent race and gender effects. Male and white respondents are significantly more likely to perceive police use of force as justified compared to female and non-white respondents. The policy implications of these findings for police-citizen interactions are discussed.     

Knowledge,communication, development: a perspective from Latin America

Knowledge in development has been perceived as a one-way commodity that developed nations could bring ‘down to’ the level of ‘developing countries’. Sharing knowledge is generally seen as a North–South operation. This vertical approach to knowledge in development echoes the vertical approach to development in general, whereby knowledge is perceived as an ingredient of the technical assistance given by those who have it to those who do not. However, no organisation can offer social transformation or knowledge sharing if it is not itself engaged in an internal learning process that systematically questions certainties, authorities, and decision making. Learning is a complex process of acquiring knowledge, both within the organisation that facilitates social change and among the subjects of and partners in social change.     

Variability of the Entire Mitochondrial DNA Control Region in a Human Isolate from the Pas Valley (Northern Spain)

Abstract: In this study, we analyzed the entire mtDNA control region in 61 unrelated individuals from the Pas Valley (Cantabria), a human isolate from northern Spain, to evaluate the suitability of this analysis to increase the power of discrimination of this locus for forensic purposes in human isolates. Low values obtained for the diversity parameters confirmed the relative isolation of this human group. The main findings of this study indicated that even the analysis of the entire mtDNA control region may have important limitations for use in forensic casework when dealing with human isolates: none of the 44 individuals who exhibited identical HVI‐HVII haplotypes could be further differentiated by analysis of segment HVIII. Nevertheless, analysis of the entire mtDNA control region proved to be useful to determine the ancestry of the samples examined, by contributing to the confirmation, and, on occasion, even to the refinement of the haplogroup assignment.     

Population data of new Y-chromosome STRs GATA C4, DYS438, DYS437, GATA A7.2, GATA H4, DYS439 and GATA A10 in males from Colombia

Two hundred twenty-five unrelated males were typed for 7 over 8 loci Y-chromosome STRs proposed in a collaborative study by The Spanish and Portuguese ISFG Working Group. The markers amplification were in two multiplex reactions GEPY I with GATA C4, DYS438, DYS437, DYS461 (GATA A7.2) and GEPY II with GATA H4, DYS439, GATA A10 and DYS460 (GATA A7.1). All gene diversities were upper 0.5 with the highest value in DYS439 with 0.64. Furthermore, 152 haplotypes from 7 loci Y-chromosome STRs were found within studied population and a high haplotype diversity 0.9902 was found. The DYS460 (GATA A7.1) marker can not be studied because its diverse alleles were not able for interpret.