Infanticide: is its incidence among postneonatal infant deaths increasing?: an 18-year population-based analysis in California

The decline in the incidence of sudden infant death syndrome (SIDS) and recent recommendations regarding the differentiation of SIDS and child abuse has generated speculation that some cases of infanticide were misdiagnosed as SIDS. The aims of this study were to determine the change in incidences and proportions of postneonatal deaths from all causes, SIDS, and infanticide in California over an 18-year interval encompassing years before and after the Back to Sleep campaign. Selected postneonatal mortality data from 1981 through 1998 obtained from the California Department of Health Services were analyzed and graphically displayed. The total postneonatal mortality and incidence of SIDS deaths per 100,000 live births decreased 45% and 66%, respectively, during the study interval; the incidence of infanticide remained low. The ratio of infanticide to SIDS increased from 4.3 per 100 in 1981 to 10.2 per 100 in 1998. Infanticide deaths, as a percentage of the total number of postneonatal deaths, increased slightly from the first to the second half of the study interval but never rose above 3.2%. It is concluded that this increased percentage is due to a decrease in SIDS deaths and not to an actual increase in infanticide deaths.     

Detection of a primer-binding site polymorphism for the STR locus D16S539 using the Powerplex 1.1 system and validation of a degenerate primer to correct for the polymorphism

Quality assurance samples submitted from the NCSBI as part of a contract with TBTG to outsource DNA Database samples showed unexpected discrepancies for the locus D16S539 when all other loci yielded identical results. Discrepancies observed included allele drop out and an imbalance in sister alleles with samples returned from TBTG. This led to a comprehensive review of the technical procedures used between the two laboratories to determine the cause of the discrepancies noted for the locus D16S539, since both laboratories were using the PowerPlex 1.1 typing kit from the Promega Corporation. The NCSBI and the TBTG utilize different extraction methods (organic extraction vs. FTA) and amplification conditions (AmpliTaq vs AmpliTaq Gold), respectively, so the exact cause of discrepancy observed was not immediately apparent. Experiments at the NCSBI associated the observed allele drop out and the imbalance of the sister alleles with the use of AmpliTaq Gold and a hot start procedure. Sequencing data revealed that a point mutation resides on the D16S539 primer-binding site that reaches polymorphic levels in African-American populations. This led to the development of a degenerate primer by the Promega Corporation to detect "missing" alleles when AmpliTaq Gold is used. The degenerate primer was then thoroughly tested to show its efficacy in detecting the "true" D16S539 profile when used.     

Allele frequencies of nine STR loci--D16S539, D7S820, D13S317, CSF1PO,TPOX, TH01, F13A01, FESFPS and vWA--in the population from Alagoas,northeastern Brazil

The polymorphism of nine STR loci has been studied in a sample of 598 individuals from the population of Alagoas, Northeastern Brazil. Determination of the allele frequencies as well as of several commonly used statistics in forensic and paternity testing were defined. The most polymorphic loci were TH01 and D7S317. The exact test demonstrated that the nine loci analyzed in the population have no deviation from Hardy-Weinberg equilibrium (P > 0.05).     

Y-chromosome variation in Rio de Janeiro,Brazil, population sample

Allele and haplotype frequencies of seven Y-chromosome STR loci, DYS 19, DYS388, DYS389I, DYS389II, DYS390, DYS391 and DYS392, were determined from 109 unrelated males in Rio de Janeiro, Brazil, sample population.     

The Role of Religion in the Transition to Adulthood for Young Emerging Adults

Recent research has highlighted the role of culture in emerging adulthood (age between 18 and 25 years). However, most studies have examined majority cultures (e.g., China) as well as subcultures (e.g., American ethnic minorities). Thus, work on other aspects of culture such as religion is needed given the emerging evidence that it may have an impact on development. This study explored the role of religious culture in the emerging adulthood of college students. Participants were 445 undergraduates (ages 18–20 years) from institutions that were Catholic (31 males, 89 females), Mormon (48 males, 200 females), and public (21 males, 56 females). Results found religious differences in (a) the criteria young people deemed necessary for adulthood, (b) the extent to which emerging adults felt they had achieved these criteria, (c) various aspects of spirituality including practices and beliefs, and (d) the behaviors in which emerging adults engage.Portions of this study were presented at the biennial meeting of the Society for Research in Adolescence, Baltimore, Maryland, in March 2004.Assistant Professor of Psychology at Loyola College in Maryland. She received her PhD in 2001 from the University of Maryland, College Park. Her major research interests are in social-and self-development during adolescence and emerging adulthood.Assistant Professor of Marriage, Family, and Human Development in the School of Family Life at Brigham Young University. He received his PhD in 2000 from the University of Maryland, College Park. His major research interests are in social-and self-development during early childhood and emerging adulthood.     

A classification of psychological factors leading to violent behavior in posttraumatic stress disorder

Posttraumatic stress disorder has long been linked to violent behavior. However, the exact nature of that association remains poorly characterized due to the limitations of knowledge in the area of phenomenology, contextual factors, the biology, and the nature of the aggression involved in the disorder. A clear understanding of the genesis of violence in posttraumatic stress disorder can be helpful to those involved in assessing psychiatric-legal issues relevant to the disorder and in its therapeutic management. In this article, we review the potential psychological links between posttraumatic stress disorder secondary to combat exposure and violent behavior and suggest a tentative classification of the main psychological causes of violence in that syndrome.     

The Real Winner's Curse

Traditional theories of democracy suggest that political representation of excluded groups can reduce their incentives to engage in conflict and lead to lower violence. However, this argument ignores the response of established elites when (1) their interests are threatened by the policy stance of new political actors and (2) elites have a comparative advantage in the exercise of violence. Using a regression discontinuity approach, we show that the narrow election of previously excluded left‐wing parties to local executive office in Colombia results in a one standard deviation increase in violent events by right‐wing paramilitaries. We interpret this surge in violence as a reaction of traditional elites to offset the increase in outsiders' access to formal political power. Consistent with this interpretation, we find that violence by left‐wing guerrillas and other actors is unaffected and that violence is not influenced by the victory of right‐wing or other new parties in close elections.     

Citizens,consumers, workers,and activists: civil society during and after water privatization struggles

Water privatization battles and their aftermath in seven Latin American, African, and Asian countries feature diverse and often complementary forms of action by unions, popular movements, neighbourhood associations, and non-governmental organizations (NGOs). NGOs cooperate with popular movements for water rights more than the literature would suggest, and after mobilizations against privatization, activists have had some success maintaining pressure for better service to poor neighbourhoods through advocacy and local self-provision arrangements. Public employees’ unions play important roles in water policy coalitions, often practising a distinctive form of social movement unionism. These experiences argue for a more flexible understanding of categories and organizational forms in civil society.     

Effect of food insecurity on food purchases at home

Previous research has established a relationship between income and food security. In this article, we examine the effect of food security on food purchases, specifically on five food‐at‐home groups. Using a set of Tobit models, and after controlling for a set of confounding factors, we show that food security perception leads to the purchase of fruit and vegetables, meats and eggs, and dairy products while decreasing the purchase of fat and carbohydrates. However, we cannot be certain of the actual nutritional effect.