Zygomaticomaxillary suture shape analyzed with digital morphometrics: reassessing patterns of variation in American Indian and European populations

Typological classification of human zygomaticomaxillary suture (ZMS) shape is often used in forensic assessment of ancestry, following earlier studies reporting higher frequencies of "angled" sutures among American Indians and higher frequencies of "curved" sutures among Caucasians. In this paper we present a new method of digital morphometrics to quantify and compare ZMS shape in 60 American Indian and 60 European crania. Suture outlines were recorded as three-dimensional (3D) contours on digital models of adult male and female crania created with a portable 3D laser scanner. Each contour was represented by about four hundred point coordinates, which were transformed via Fourier analysis into amplitude coefficients suitable for use in linear discriminant analysis. Discriminant functions were created that accurately predicted group membership for 83% of the crania in the sample, after leave-one-out cross-validation. The results were compared with traditional typological classifications based on visual evaluation of ZMS shape, and the contour-based method was found to be more effective than the typological approach. However, the distribution of ZMS types within the two sample groups did not conform to previously reported patterns. This discrepancy indicates that ZMS shape may reflect not only genetic factors, but also environmental factors such as diet and stress. In addition, some evidence for sexual dimorphism in the zygomaticomaxillary complex was observed. Based on these findings, we recommend caution when using ZMS shape analysis in forensic ancestry determination.     

Financialization,distribution, and macroeconomic regimes before and after the crisis: a post-Keynesian view on Denmark,Estonia, and Latvia

ABSTRACT

Since the early 1980s, financialization has become an increasingly important trend in developed capitalist countries, with different timing, speed, and intensities in different countries. Rising inequality has been a major feature of this trend. Shares of wages in national income have declined and personal income inequality has increased. Against this background unsustainable demand and growth regimes have developed that dominated the major economies before the crisis: the ‘debt-led private demand boom’ and the ‘export-led mercantilist’ regime. The article applies this post-Keynesian approach to the macroeconomics of finance-dominated capitalism of three Baltic Sea countries, Denmark, Estonia, and Latvia, both for the pre-crisis and the post-crisis period. First, the macroeconomics of finance-dominated capitalism are briefly reiterated. Second, the financialization-distribution nexus is examined for the three countries. Third, macroeconomic demand and growth regimes are analyzed, both before and after the crisis.     

Fatal Fat Embolism After Penis Enlargement by Autologous Fat Transfer: A Case Report and Review of the Literature

Fat embolism is an incidental finding in cases of long bone fractures or other trauma, but it is also associated with liposuction and autologous fat transfer, a procedure where fat from liposuction is injected back into the same patient's face, breast, buttocks or penis. We here present a case of sudden death by fat embolism in a healthy young male, caused by a simple penis enlargement procedure, in which fat was injected into the penis shaft. We suggest that the risk of fat embolization might be higher when pretraumatized tissue is subjected to fat injection, like in this case, where a penis elongation was performed before the fat injection.     

I know how you feel: the influence of psychopathic traits on the ability to identify micro-expressions

Few studies have examined the manner in which individuals view, interact with, and manipulate others, or their ability to identify and respond to others’ emotional cues. More specifically, no research has examined the capacity of individuals high in psychopathic traits to perceive and recognize extremely fleeting emotional expressions (i.e. micro-expressions) that could allow them to infer emotional vulnerability in others. The current study examined whether psychopathic traits [measured via the Self-Report Psychopathy Scale-4 (SRP-4); Paulhus, D. L., Neumann, C. S., & Hare, R. D. (2016). Manual for the Self-Report Psychopathy Scale (4th ed.). Toronto: Multi-Health Systems] were associated with the ability to identify micro-expressions in others. Participants (N?=?132) viewed videos of 1/25th second micro-expressions and attempted to identify the displayed emotion. The results indicated that SRP scores were positively associated with a heightened ability to identify sadness micro-expressions, particularly among observers who were women. Additionally, various SRP subscales were related to emotion selection tendencies and accuracy rates, which also differed between the sexes.     

The devil in the details: constitutional regime types in post-Soviet Eurasia

The constitutions of Eurasia’s more authoritarian countries categorically differ from those of the region’s more democratic countries, in that they codify a doctrine of presidential supremacy as well as several constitutional tools allowing for its implementation. Therefore, the classic typology of forms of government is inadequate for understanding the architecture of power in these countries. Rather, their routine categorization as presidential or semi-presidential formats of executive–legislative relations causes flawed case selection in extant comparative research about the impact of forms of government, particularly president-parliamentarism, on regime performance and stability. This article shows that almost a third of all constitutions in the region reflect a regional variety of genuinely authoritarian presidentialism. It systematizes the properties of this constitutional pattern of “Eurasian-type presidentialism” or, for that matter, “superpresidentialism.” Methodologically, the article encourages contextual analyses to understand non-Western, non-liberal constitutions “from within.”     

School-based Stress Management Training for Adolescents: Longitudinal Results from an Experimental Study

This study aimed to investigate the effectiveness of a school-based universal preventive stress management training program for early and middle adolescents in comparison with a no-treatment control group. The study examined the intervention effects of age (early versus middle adolescents) and gender on perceived stress, interpersonal coping, and self-efficacy prior, immediately after as well as 3 months after the intervention. Three hundred and twenty adolescents (ages 10–14 years) participated in the study. Whereas both experimental conditions did not differ substantially in baseline scores, the experimental group scored higher on perceived self-efficacy compared to the control group at the follow-up assessment. Additionally, the experimental group showed less perceived stress and more adaptive coping at the post and follow-up assessment. Age-dependent intervention effects suggested that early adolescents primarily benefited from the treatment. Although the effects must be replicated using a randomized design, the current findings reveal that the program does strengthen important protective factors for the psychosocial development of adolescents.

Sexual dimorphism in human browridge volume measured from 3D models of dry crania: A new digital morphometrics approach

Sex estimation from the human skull is often a necessary step when constructing a biological profile from unidentified human remains. Traditional methods for determining the sex of a skull require observers to rank the expression of sexually dimorphic skeletal traits by subjectively assessing their qualitative differences. One of these traits is the prominence of the glabellar region above the browridge. In this paper, the volume of the browridge region was measured from digital 3D models of 128 dry crania (65 female, 63 male). The 3D models were created with a desktop laser scanner, and the browridge region of each 3D model was isolated using geometric planes defined by cranial landmarks. Statistical analysis of browridge-to-cranium volume ratios revealed significant differences between male and female crania. Differences were also observed between geographically distinct populations, and between temporally distinct populations from the same locale. The results suggest that in the future, sex determination of human crania may be assisted by quantitative computer-based volume calculations from 3D models, which can provide increased objectivity and repeatability when compared to traditional forensic techniques. The method presented in this paper can easily be extended to other volumetric regions of the human cranium.