The Application of Remote Sensing for Detecting Mass Graves: An Experimental Animal Case Study from Costa Rica*

Abstract: Detection of mass graves utilizing the hyperspectral information in airborne or satellite imagery is an untested application of remote sensing technology. We examined the in situ spectral reflectance of an experimental animal mass grave in a tropical moist forest environment and compared it to an identically constructed false grave which was refilled with soil, but contained no cattle carcasses over the course of a 16‐month period. The separability of the in situ reflectance spectra was examined with a combination of feature selection and five different nonparametric pattern classifiers. We also scaled up the analysis to examine the spectral signature of the same experimental mass grave from an air‐borne hyperspectral image collected 1 month following burial. Our results indicate that at both scales (in situ and airborne), the experimental grave had a spectral signature that was distinct and therefore detectable from the false grave. In addition, we observed that vegetation regeneration was severely inhibited over the mass grave containing cattle carcasses for up to a period of 16 months. This experimental study has demonstrated the real utility of airborne hyperspectral imagery for the detection of a relatively small mass grave (5 m²) within a specific climatic zone. Other climatic zones will require similar actualistic modeling studies, but it is clear that the applications of this technology provide the international community with both an early detection tool and a tool for ongoing monitoring.     

Assessing the Risk of Future Psychological Abuse: Predicting the Accuracy of Battered Women’s Predictions

Building on a handful of studies demonstrating battered women’s accuracy in assessing their risk of being physically reabused, this study examined how accurately victims assess their risk of future psychological abuse. Participants’ ratings of the likelihood that their partner would engage in controlling/dominance behaviors or efforts to humiliate/degrade them in the coming year and their reports 18 months later of whether this had actually occurred were used to create a four category version of accuracy (true positive, false positive, true negative, false negative). Victims were more likely to be right than wrong in their assessments of risk; PTSD symptoms, the recency of physical violence, and the degree of stalking and psychological abuse in the relationship predicted membership in the four accuracy categories. These findings overlap considerably with those examining victim accuracy in predicting physical abuse and inform ongoing debates about the value of incorporating victims’ insights into risk assessment efforts.

(Re)Connecting the Global and Local: Europe's Regional Seas

One of the challenges to sustainable development is the disconnection between environmental impacts and their underlying causes. Whilst impacts are often localized and perceptions limited accordingly, sources can often be traced to broader factors, and there is a need for methodologies to establish these linkages between localized effects and global causes. Europe's Regional Seas provide a useful illustration, characterized by a variety of ecological problems influenced by a range of local and wider factors within complex ecosystems. The Driver-Pressure-State-Impact-Response (DPSIR) model is one methodology used to establish connections between ecological conditions and human activity. Whilst there are some significant challenges in developing and using such models, they deepen understanding of ecological systems and the influences of socio-economic forces on them. In particular, they can help in contextualizing the apparent effectiveness of regulatory interventions and understanding the role that the forces of globalization play in creating localized ecosystem degradation.     

Health and occupational consequences of spouse abuse victimization among male U.S. Army soldiers

Little is known about health and occupational outcomes of male spouse abuse victims. In all, 11,294 male spouse abuse victims with a history of spouse abuse perpetration, 3,277 victims without prior spouse abuse perpetration, and 72,855 nonvictims and nonperpetrators were followed for 12 years to assess army attrition and hospitalization risk. In multivariate Cox models controlling for age, race, education, rank, service time, and dependents, victims were at significantly greater risk for early army discharge and hospitalization than were nonvictims- particularly hospitalizations for depression, alcohol dependence, and mental health-even when the hospitalization occurred years after the abuse event. Victim-perpetrators had greater risk than did victim-nonperpetrators for both attrition (1.13, 95% confidence interval [CI] = 1.08-1.18; 1.05, 95% CI = 1.02-1.08, respectively) and hospitalizations (1.45, 95% CI = 1.38-1.52; 1.38, 95% CI = 1.27-1.49, respectively). College education was protective and deserves further inquiry. Male victims need greater support following spouse abuse.     

Disability,Reasonable Accommodation and the Employer's Obligations: Nano Nagle School v Daly

The duty on employers to provide reasonable accommodation is a well-established component of disability discrimination legislation, yet it continues to generate litigation in many jurisdictions. This article examines a recent decision of the Irish Supreme Court concerning the extent of the employer's obligations where, after having acquired an impairment, a worker is no longer able to perform all of the functions of her original job. The case also addressed the question of what procedures should be followed by an employer when considering the provision of reasonable accommodation, as well as the need for courts to justify awards of compensation. The issues in Irish law were intertwined with obligations arising from EU and international law instruments. Therefore, the decision is pertinent for other jurisdictions confronting similar challenges.     

The Dynamics of Staying and Leaving: Implications for Battered Women’s Emotional Well-Being and Experiences of Violence at the End of a Year

Much of the discourse on intimate partner violence assumes that women must end their relationship with their abusive partner to increase their safety and emotional well-being. Few studies, however, exist to support this assumption. Equally problematic, those studies that do exist have failed to distinguish women who leave and stay out from those who leave only to later return. Comparing emotional well-being and experiences of violence for 206 low-income, primarily Black battered women following different relationship trajectories, this longitudinal study found that women both separated from and together with their partner for the entire year of the study fared best at the end of that year compared to women “in” and “out” of the relationship over time. Beyond challenging common assumptions, these findings highlight the importance of considering the larger context within which an individual instance of leaving occurs.

Differentiating human bone from animal bone: a review of histological methods

This review brings together a complex and extensive literature to address the question of whether it is possible to distinguish human from nonhuman bone using the histological appearance of cortical bone. The mammalian species included are rat, hare, badger, racoon dog, cat, dog, pig, cow, goat, sheep, deer, horse, water buffalo, bear, nonhuman primates, and human and are therefore not exhaustive, but cover those mammals that may contribute to a North American or Eurasian forensic assemblage. The review has demonstrated that differentiation of human from certain nonhuman species is possible, including small mammals exhibiting Haversian bone tissue and large mammals exhibiting plexiform bone tissue. Pig, cow, goat, sheep, horse, and water buffalo exhibit both plexiform and Haversian bone tissue and where only Haversian bone tissue exists in bone fragments, differentiation of these species from humans is not possible. Other primate Haversian bone tissue is also not distinguishable from humans. Where differentiation using Haversian bone tissue is undertaken, both the general microstructural appearance and measurements of histological structures should be applied. Haversian system diameter and Haversian canal diameter are the most optimal and diagnostic measurements to use. Haversian system density may be usefully applied to provide an upper and lower limit for humans.     

Application of a pyroprobe to simulate smoking and metabolic degradation of abused drugs through analytical pyrolysis

Smoking of illicit drugs can produce unique metabolic biomarkers. Smoking conditions can be partially modeled via pyrolysis, a process that decomposes a chemical compound by extreme heat. Pyrolytic decomposition was found to be useful as a limited metabolic mimic in that analytical pyrolysis can be used to generate some of the same compounds produced by metabolic degradation. This project focused on the pyrolysis of cocaine and methamphetamine using a pyroprobe coupled with a GC/MS and more generally, potential applications of pyrolysis to forensic toxicology. Common diluents including lidocaine, caffeine, and benzocaine were pyrolyzed in mixtures with cocaine and methamphetamine. Correlations between pyrolytic and metabolic degradations revealed that this method has the capability to produce some of the reported metabolites such as norcocaine and cocaethylene for cocaine, and amphetamine for methamphetamine. The results demonstrate that analytical pyrolysis has the potential to identify some metabolic products and to supplement in vivo and enzymatic studies.