Bone Area Histomorphometry

Quantifying the amount of cortical bone loss is one variable used in histological methods of adult age estimation. Measurements of cortical area tend to be subjective and additional information regarding bone loss is not captured considering cancellous bone is disregarded. We describe whether measuring bone area (cancellous + cortical area) rather than cortical area may improve histological age estimation for the sixth rib. Mid‐shaft rib cross‐sections (n = 114) with a skewed sex distribution were analyzed. Ages range from 16 to 87 years. Variables included: total cross‐sectional area, cortical area, bone area, relative bone area, relative cortical area, and endosteal area. Males have larger mean total cross‐sectional area, bone area, and cortical area than females. Females display a larger mean endosteal area and greater mean relative measure values. Relative bone area significantly correlates with age. The relative bone area variable will provide researchers with a less subjective and more accurate measure than cortical area.     

Social Justice Beliefs Regarding Old-Age Provisions in Germany: A Latent Profile Analysis

Examining personal beliefs about social justice in the way a society provides financial security in old age may reveal potential conflicts about the distribution of wealth. Individuals differ with regard to how they believe old-age provisions should be distributed (e.g., based on principles of merit or self-reliance), and individuals often endorse more than one belief at the same time. Using latent profile analysis and data from the 2014 German Ageing Survey we identify five separate profiles of social justice beliefs among older adults (40–85 years) in Germany. Belief profiles were based on the extent to which people simultaneously endorse and/or reject meritocratic, redistributive, self-reliant, and fatalistic ideas regarding old-age provisions. Almost 20% of the sample demonstrated a belief system in line with the German meritocratic system. Roughly three-fifth did not show strong preferences for a specific social justice principle. However, we identified two belief profiles representing 22.4% of the sample which may reflect dissent from the current system. Sociodemographic characteristics, political identification, and indicators of social disadvantage (e.g., lower income, fears of decline in social status, and feelings of social exclusion) were differentially associated with the five belief profiles. Overall, the results showed that in particular people of lower socioeconomic status were critical with respect to the principles of the German pension system raising questions regarding the demand of political interventions.     

Developmental Validation of the PrepFiler™ Forensic DNA Extraction Kit for Extraction of Genomic DNA from Biological Samples*

Abstract: The PrepFiler? Forensic DNA Extraction Kit enables isolation of genomic DNA from a variety of biological samples. The kit facilitates reversible binding of DNA with magnetic particles resulting in high DNA recovery from samples with very low and high quantities of biological materials: 0.1 and 40 μL of human blood (donor 2) provided 14 and 2883 ng of DNA, respectively. Following the revised SWGDAM guidelines, performance of the developed method was investigated using different sample types including saliva on swabs, semen stains on cotton fabric, samples exposed to environment, samples with polymerase chain reaction (PCR) inhibitors, blood stains (on denim, cotton cloth, and FTA^® paper), and touch evidence‐type samples. DNA yields for all samples tested were equal or better than those obtained by both phenol–chloroform extraction and commercial kits tested. DNA obtained from these samples was free of detectable PCR inhibitors. Short tandem repeat profiles were complete, conclusive, and devoid of PCR artifacts.     

Die ?kognitive Exklusion�� junger Migranten im L?ndervergleich

The degree of ethnic educational inequality varies across countries, as international educational surveys have shown. Previous studies suggest that institutional and societal characteristics of destination countries partly account for this variance. The article builds upon these recent findings and upon hypotheses with regard to the relationship between welfare states and immigration and integration processes. It is assumed that two different societal dimensions, namely egality and diversity of the destination countries structure educational decisions of immigrants. Thus, at least partly, the individual control has its educational success revoked. This is why this article speaks of a process of cognitive exclusion. With data from PISA 2003 and 2006 we examine the effects of welfare state institutions and diversity of host countries on individual educational success by applying multilevel regressions. The results show that strong welfare states reduce the individual risk of cognitive exclusion, contradicting common ??moral hazard?? assumptions.