Size Assessment of the Gray Reef Shark Carcharhinus amblyrhynchos Inferred from Teeth Marks on Human Wounds

An accurate assessment of the biting shark size is paramount for better understanding the agonistic behavior of a species toward humans. The gray reef shark is involved in many accidental bites. Based on the capture of 35 gray sharks, we calculated the algorithm that allows the assessment of the shark size, through the interdental distance (IDD) inferred from teeth marks on human wounds. Our results show a negative allometric relationship and that IDD calculated from imprints perpetrated by the upper jaw are globally similar with those from the lower jaw, in spite of heterodonty. We applied our findings to two cases of accidental bites by this species. Both of the victims had declared that the shark length was “at least 2 m”. Based on our algorithm, the assessment of the shark TL was approx. 180 and 160 cm, respectively, which correspond to an overestimation of ≥20% by the victims.     

Bioinformatics Approach to Assess the Biogeographical Patterns of Soil Communities: The Utility for Soil Provenance,

Soil DNA profiling has potential as a forensic tool to establish a link between soil collected at a crime scene and soil recovered from a suspect. However, a quantitative measure is needed to investigate the spatial/temporal variability across multiple scales prior to their application in forensic science. In this study, soil DNA profiles across Miami‐Dade, FL, were generated using length heterogeneity PCR to target four taxa. The objectives of this study were to (i) assess the biogeographical patterns of soils to determine whether soil biota is spatially correlated with geographic location and (ii) evaluate five machine learning algorithms for their predictive ability to recognize biotic patterns which could accurately classify soils at different spatial scales regardless of seasonal collection. Results demonstrate that soil communities have unique patterns and are spatially autocorrelated. Bioinformatic algorithms could accurately classify soils across all scales with Random Forest significantly outperforming all other algorithms regardless of spatial level.     

Job Stress,Job Involvement,Job Satisfaction,and Organizational Commitment and Their Associations with Job Burnout Among Indian Police Officers: a Research Note

Job burnout can negatively impact individual officers, the organization that employs the burned out officers, citizens with whom these officers directly interact, and the community more broadly. The vast majority of the empirical research on burnout has been based on Western police officers. The present study extends our understanding of the associations that job stress, job involvement, job satisfaction, affective commitment, and continuance commitment have with the three dimensions of burnout (emotional exhaustion, depersonalization, and a reduced sense of accomplishment) among Indian police officers. Ordinary least square (OLS) regression analysis was used to examine survey data from 827 police officers in the Sonipat and Rohtak districts of the Indian state of Haryana using a systematic random sample. The findings indicate that job involvement and job satisfaction were associated with lower levels of all three dimensions of burnout. Job stress was associated with emotional and reduced accomplishment burnout. High affective commitment was associated with lower levels of a reduced sense of personal accomplishment, while continuance commitment was associated with higher levels of emotional and depersonalization burnout. The results suggest that job stress, job involvement, job satisfaction, affective commitment, and continuance commitment have effects on burnout among Indian officers, as has been found among Western officers. As such, police scholars and administrators should focus on reducing job stress and continuance commitment and increasing job involvement, job satisfaction, and affective commitment among officers.     

Age at Death Estimation in Adults by Computer-Assisted Histomorphometry of Decalcified Femur Cortex

Abstract:  In 1965, Kerley pioneered histomorphometry of bone as an aging method. The technique has been modified by several authors, and some have used computer-assisted image analysis. Undecalcified bone sections used in these methods are obtained with a diamond wafer saw or by grinding the sections manually or automatically with abrasive paper. In the present study, we examined the application of histomorphometry to decalcified bone sections, routinely obtained in every pathology lab, from paraffin blocks cut with a standard microtome. This study was divided into two parts: in the first, we tested different decalcifying methods to determine the most appropriate for femoral bone; in the second part, we used computer-assisted histomorphometry to estimate age at death in 29 samples of femoral bone. We measured intact osteon density (N.On), fragmented osteon density (N.On.Fg) and percentage of lamellar bone surface per unit area (Lm.B.Ar) in the cortex of the femoral midshaft, on four or 20 fields per section. We found that 20% nitric acid solution at room temperature proved to be the best decalcifying method, with a mean decalcification duration of 1 week. Fragmented osteon density was found to be the morphometric feature most closely correlated with age, followed by intact osteon density; Lm.B.Ar. did not increase accuracy. The best accuracy (4.1 ± 3.5 years) was obtained for individuals under the age of 70 when measurements of 20 fields were used for the analysis. For all individuals, the inaccuracy was 6.1 ± 6.2 years and 8.1 ± 8 years, with 20 and four fields respectively. The present study shows that decalcification of bone sections can be used for age estimation at death. This procedure is particularly useful in case of mass disaster as it is easily done in any pathology department.     

Remarks on the Visuddhimagga,and on its treatment of the Memory of Former Dwelling(s) (pubbenivāsānussatiñāṇa)

Journal of Indian Philosophy -     

Reasons for death penalty attitudes among Chinese citizens: Retributive or instrumental?

There is strong support for the death penalty in China; the reasons behind the support, however, are unclear. Retribution and the instrumental perspectives are two major reasons for pro-death penalty attitudes in the United States. Two survey-based studies partially examined whether these two perspectives are also the reasons behind pro-death penalty attitudes in China. Those studies, however, were limited to college students. Using a survey data of 108 regular citizens from different areas and occupations, this study found that both instrumental and retributive perspectives are predictors of pro-death penalty attitudes, and that the former is stronger than the latter.     

Explaining criminal victimization in Taiwan: A lifestyle approach

Routine activities and lifestyle-exposure theories were shaped and substantially tested in Western societies; this study extended their application to a non-Western context in Taiwan. Using the most recent but underutilized 2005 Taiwan Areas Criminal Victimization Survey, responses from a random sample of 18,046 participants were analyzed for robbery, assault, and personal larceny victimization. The findings showed that the risk factors associated with criminal victimization in Taiwan resembled those in Western nations, but anomalies also appeared. Females faced a higher risk of being robbed than males; married and affluent persons were more likely to be victims of personal larceny than not married or less affluent persons; and those who stayed home at night were more likely to be assaulted than those who went out at night. The discussion of these findings suggest that explaining victimization patterns involve more than victims' attributes or lifestyles; the social and cultural context should be considered as well.     

Excessive Uniformity in Federal Drug Sentencing

The ideal of fair and proportionate punishment was a major impetus for federal sentencing reform. Observers of the current federal drug sentencing regime contend that the sentencing guidelines and mandatory minimums lead to the problem of “excessive uniformity” in which offenders of widely differing culpability receive similar sentences due to the dominance of drug quantity as a sentencing factor. This study investigates this phenomenon using the 1997 Survey of Inmates in Federal Correctional Facilities. Controlling for relevant offense, offender, and case processing variables, the analysis finds that the quantity-driven sentencing fails to account for important differences in offender culpability—resulting in excessively uniform sentences for offenders with highly dissimilar roles in the offense. The main policy implication of this research is that the central, organizing role of drug quantity in federal drug sentencing needs to be rethought. Indeed, effectively dealing with the problem of excessive uniformity will likely require the wholesale restructuring of how federal sentences for drug offenders are determined.

Subjective Proximity to Crime or Social Representations? Explaining Sentencing Attitudes in Switzerland

Lay sentencing attitudes are considered in the light of two theoretical perspectives. The first perspective views sentencing attitudes as parts of broader sets of social representations anchored in one’s position in the social structure. The second perspective explains sentencing attitudes by their subjective experiences of crime. This paper tests both theories by performing a series of multiple regressions on two dimensions of sentencing: punishment goals and severity of punishment. Empirical data comes from a quantitative survey conducted in Switzerland. Findings reveal that indicators of subjective proximity to crime largely account for sentencing attitudes. Nevertheless, social representations of crime measured by causes of crime also have a significant impact on sentencing attitudes. Implications of these findings for sentencing in Western democracies are discussed.