Sex‐ and Size‐Related Patterns of Carrion Visitation in Necrodes littoralis (Coleoptera: Silphidae) and Creophilus maxillosus (Coleoptera: Staphylinidae)

The estimation of postmortem interval (PMI) based on successional patterns of adult insects is largely limited, due to the lack of potential PMI markers. Sex and size of adult insects could be easily used for such estimation. In this study, sex‐ and size‐related patterns of carrion attendance by adult insects were analyzed in Necrodes littoralis (Coleoptera: Silphidae) and Creophilus maxillosus (Coleoptera: Staphylinidae). For both species, abundance of males and females changed similarly during decomposition. A slightly female‐biased sex ratio was recorded in N. littoralis. Females of N. littoralis started visiting carcasses, on average, one day earlier than males. There was a rise in size of males of N. littoralis at the end of decomposition, whereas for females of both species and males of C. maxillosus, no size‐related patterns of carrion visitation were found. Current results demonstrate that size and sex of adult carrion beetles are poor indicators of PMI.     

Survival time, capacity of action and radiological diagnosis after gunshot wounds of the cranium (author's transl)]

Three cases of suicidal temporal gunshots. Different circumstances in the clinical course and in the ability of action.--In one case there was a bullet tract in the lower temporal region with considerable destruction of the base of the skull, followed by immediate inability of action and early death. Another case with a transtemporal gunshot without radiological signs of a laceration of the base of skull showed severe disturbance of cerebral functions for some days and remaining blindness. In the third case there was a pistol shot in the temporal region with retained missile, full ability of acting and undisturbed consciousness. Causative for the differences in the effect of the gunshots are differences of weapons and amunition and the anatomical position of the wound track in the temporal region. Discussion about the role of concussion of the brain by different rate of transgression of energy from the missile to the skull. Reference to the importance of X-ray analysis and to a radiographic documentation of the findings in such cases.     

Metric Sex Determination of the Human Coxal Bone on a Virtual Sample using Decision Trees

Decision trees provide an alternative to multivariate discriminant analysis, which is still the most commonly used in anthropometric studies. Our study analyzed the metric characterization of a recent virtual sample of 113 coxal bones using decision trees for sex determination. From 17 osteometric type I landmarks, a dataset was built with five classic distances traditionally reported in the literature and six new distances selected using the two-step ratio method. A ten-fold cross-validation was performed, and a decision tree was established on two subsamples (training and test sets). The decision tree established on the training set included three nodes and its application to the test set correctly classified 92% of individuals. This percentage was similar to the data of the literature. The usefulness of decision trees has been demonstrated in numerous fields. They have been already used in sex determination, body mass prediction, and ancestry estimation. This study shows another use of decision trees enabling simple and accurate sex determination.     

Offending Frequency and Responses to Illegal Monetary Incentives

Journal of Quantitative Criminology - We examine how responsive offenders are to illegal monetary incentives. We draw from rational choice theory, prospect theory, and models of labor supply to...     

Characteristics Differentiating Neglected Children from Other Reported Children

The aims of this study were twofold: first, to identify the characteristics that distinguish neglected children from other children reported to youth protection services; and second, to assess the relative importance of each of these characteristics in the differentiation of such children. Researchers analyzed data from the Quebec Incidence Study (QIS), which documented all reports retained for in-depth assessment out of 4,774 reports filed with youth protection services over a 3-month period. Univariate and multivariate regression analyses examined variables on different levels to establish which of the factors linked to the phenomenon of neglect were most significant. Results indicate that neglected children tend to be younger than other reported children, and have a greater frequency of prior referrals and a greater number of learning and development problems; their parents have a greater tendency to have personal, economic, and social problems and childhood histories of maltreatment.

Crises and critical junctures in authoritarian regimes: addressing uprisings’ temporalities and discontinuities

Abstract

In this article, we aim at sharpening common understandings of the notion of political crisis to better explain the trajectories of authoritarian transformations during popular uprisings. We make three major claims. First, we propose a definition of crisis as brief moments of institutional fluidity and openness in which a process can take different directions. We delineate the crisis concept from the concept of critical junctures and outline how our approach contributes to the methodological debate on ‘near misses’. Second, we indicate how the de-institutionalisation processes leading up to a crisis are to be analytically distinguished from within-crisis moments. We argue in favour of a discontinuity approach that takes into account the different temporalities of gradual lead-up processes and rapid within-crisis dynamics. Finally, we illustrate our theoretical and analytical reasoning with concrete cases from the authoritarian crises of the Arab uprisings, whilst suggesting that our argument can travel to other areas of research in which crisis narratives have gained prominence.