Decompositional odor analysis database

This study, conducted at the University of Tennessee's Anthropological Research Facility (ARF), describes the establishment of the Decompositional Odor Analysis (DOA) Database for the purpose of developing a man-portable, chemical sensor capable of detecting clandestine burial sites of human remains, thereby mimicking canine olfaction. This "living" database currently spans the first year and a half of burial, providing identification, chemical trends and semi-quantitation of chemicals liberated below, above and at the surface of graves 1.5 to 3.5 ft deep (0.45 to 1.0 m) for four individuals. Triple sorbent traps (TSTs) were used to collect air samples in the field and revealed eight major classes of chemicals containing 424 specific volatile compounds associated with burial decomposition. This research is the first step toward identification of an "odor signature" unique to human decomposition with projected ramifications on cadaver dog training procedures and in the development of field portable analytical instruments which can be used to locate human remains buried in shallow graves.     

The prevalence of compassion fatigue,compassion satisfaction and perceived stress,and their relationships with mental toughness,individual differences and number of self-care actions in a UK police force

ABSTRACT

Police personnel are likely to be affected by stress and compassion fatigue, which may have important consequences for health, well-being and job performance. There are certain individual differences which may protect against compassion fatigue, for example mental toughness, personality and self-care behaviours. However, there is little research examining all of these constructs in combination with policing. The current study aimed to gather information regarding the prevalence of compassion fatigue, compassion satisfaction and perceived stress within a large UK police force, and their relationships with personality, mental toughness and self-care activities. A questionnaire was completed by 605 police employees within a UK police force. The results demonstrated that 20% of personnel suffered from negative psychological outcomes and that these outcomes were predicted by individual differences and self-care activities. The requirement for shift work, and mental toughness scores, significantly predicted compassion satisfaction, compassion fatigue and perceived stress. The analyses also revealed a role for gender, tenure, personality and self-care in several aspects of well-being. The implications of these findings are discussed, considering the current contexts in which policing operates, with the aim of improving the psychological well-being of police officers and staff.     

The Effect of Skin Debris on Gunshot Residue Sampling and Detection

These experiments were designed to determine whether skin debris (desquamated epithelial cells and apparent skin oils) affects gunshot residue (GSR) particle detection on the sticky tape lift samples prepared for scanning electron microscopy (SEM). A dabbing experiment showed that GSR particles accumulate not only on the adhesive surface of the sampler, but also on the epithelial cell surfaces. Samplers were loaded with target GSR followed by dabbing 30 times on the back of a hand. Backscatter electron images were taken at 20 kV and for some at 30 kV of the same areas. The samplers were then treated with a sodium/calcium hypochlorite solution (bleach) to remove skin debris and again imaged in the SEM. Comparison of these images shows more GSR particles will likely be revealed at 30 kV than 20 kV and more particles revealed by the bleach treatment in an automated SEM system.     

“Mom,They are Going to Kill My Dad!” A Personal Narrative on Capital Punishment From a Convict Criminology Perspective

Capital punishment, although opposed by numerous scholars and banned in several countries, continues to be practiced in many locations under a popular rationale associated with retributive justice. While there has been extensive debate on this issue for decades among scholars, policymakers, correctional professionals, and the media; other important voices, specifically the voices of family members of executed convicts, have been ignored or discounted. Situated within a convict criminology perspective, this paper focuses on a personal narrative of how the issue of capital punishment was experienced by the partner (second author of this paper) of an executed convict. This narrative powerfully illustrates complexities and unintended social injustices toward family members that can occur from capital punishment.     

Competition in the weapons acquisition process: The case of U.S. warplanes

Consistent with the recent national trend to dismantle or limit the scope of regulatory agencies and controls, the military services are taking increasing advantage of competition to secure low, realistic prices and costs, as well as improved performance and reliability, for weapons and replacement parts. Using the purchase of combat aircraft and related systems as examples, this article assesses the effects of market structure on competition. Although competition can be effective, the unusual incentives flowing from interservice rivalry and the parochial interests of individual legislators often allow contractors to underbid or “buy in” on early development and production contracts and to “get well” on later contracts. Expanding the role of competition within the present institutional framework holds the potential for some improvement in the procurement process. More fundamental change is necessary to alter the role of Congress and eliminate the influence of undesirable rivalry among the services.     

Radioreceptor assay and radioimmunoassay of triazolam in urine samples from racing greyhounds

Two complimentary assay techniques were used to determine triazolam levels in greyhound urine samples following a single oral dose. The results from the trials were statistically compared. The relative non-specificity of the benzodiazepine antibody used in radioimmunoassay caused a significant difference in teh two sets of results. This was independent of hydrolysis.     

Identification of 2‐(ethylamino)‐1‐(4‐methylphenyl)‐1‐pentanone (4‐MEAP), a New “Legal High” Sold by an Internet Vendor as 4‐Methyl Pentedrone

Online vendors are offering a new legal high, 4‐methylpentedrone (4‐MPD). Information for potential users provided by internet vendors of 4‐MPD includes incorrect structures and nonexistent CAS numbers. A sample of 4‐MPD was obtained and analyzed using GC‐MS, NMR, and LC‐EIS. The fragmentation data from the GC‐MS and LC‐EIS produced an M‐1 ion that suggested the molecular mass was 219 amu, rather than 205 amu as calculated for 4‐methylpentedrone. The difference in molecular mass corresponded to the addition of a methyl group. Based on the mass and fragmentation pattern, two standards were synthesized, 2‐(ethylamino)‐1‐(4‐methylphenyl)‐1‐pentanone and 1‐(4‐methylphenyl)‐2‐(propylamino)‐1‐butanone. The synthesis involved bromination of the appropriate ketone followed by the reaction with ethylamine or propylamine. Based on the NMR data and unique fragmentation patterns produced by these molecules, the sample was identified as 2‐(ethylamino)‐1‐(4‐methylphenyl)‐1‐pentanone, not 4‐methylpentedrone.