The mechanism of experimental adipocere formation: substrate specificity on microbial production of hydroxy and oxo fatty acids

Studies are reported on microbial conversion of various unsaturated fatty acids to 10-hydroxy and/or 10-oxo fatty acids by Micrococcus luteus. Four fatty acids possessing cis-9-unsaturation produced 10-hydroxy and 10-oxo fatty acid products, but three enoic acids possessing trans-9-unsaturation or double bond(s) in other than the 9-carbon position were inactive as substrates. 10-Hydroxy palmitic and stearic acids were converted to the corresponding 10-oxo fatty acids, but the 10-oxo compounds were inactive as substrates. This indicates that the metabolic sequence of cis-9-enoic fatty acid by the microbial enzyme(s) is first converted to 10-hydroxy fatty acid and then to its 10-oxo compound.     

Codependency to Conflict?

正Scapegoating China puts both countries’most valuable partnership at riskThe world’s most important economic relationship is in serious trouble.Long drawn together by the mutual benefi ts of codependency—an export-led China relying on U.S.demand and a savingshort United States in need of low-cost Chinese imports and surplus foreign capital—the air is now thick with tension.The United States’shifting stance on trade policy is hardly surprising.In his inau-     

Postretrenchment Politics: Policy Feedback in Chile's Health and Pension Reforms

Through a comparison of three periods of health and pension reform in Chile, this article develops an explanation for the incremental form of social policy change that some Latin American nations have witnessed in recent years, despite the dramatic rise of left governments. It describes “postretrenchment politics,” which constitutes a realignment in the way politics plays out in countries that have undergone social policy retrenchment. In postretrenchment politics, the strengthened position of private business interests, combined with political learning legacies and lock‐in effects generated by reforms, results in incremental political change, despite renewed efforts by left parties to address inequality. Global capital also plays an important contextual role, and may influence postretrenchment politics. In postretrenchment politics, newly reformed systems may achieve greater equity, but they do so in fragmented form.     

Therapeutic mechanisms of suicidal ideation: the influence of changes in automatic thoughts and immature defenses

The treatment processes associated with reduced suicidal ideation have received little research attention. This study evaluates the influence on suicidal ideation of theory-based intrapsychic processes: maladaptive cognition and defensive style. Thirty-three community mental health patients completed questionnaires at two time points. Decreases in automatic thoughts were a strong correlate of decreased suicidal ideation, and decreases in immature defenses were a moderate strength correlate. These relationships remained significant even when controlling for initial level of depression. The theorized mechanisms of cognitive-behavioral and psychodynamic therapy had the expected effects on suicidal ideation. The strong association of decreased maladaptive cognitions with decreased suicidal ideation supports further development of cognitive-behavioral suicide interventions and clinical use of cognitive interventions. Psychodynamic processes in suicidal ideation and behavior warrant further exploration.     

Current understandings of suicide survivor issues: research, practice, and plans. Report of the 1st International Suicide Postvention Seminar, September 8, 2006, Portoroz, Slovenia

The goals of the Postvention Taskforce of the International Association for Suicide Prevention (IASP) are to increase awareness of postvention and survivor issues. One of the strategies is to organize meetings. We report on the 1st International Suicide Postvention Seminar, held as a 1-day preevent at the 11th European Symposium on Suicide and Suicidal Behavior in Portoroz, Slovenia, September 2006. The seminar provided a state of the art review of the postvention field, with plenary presentations on research, psychotherapeutic care, development of national networks, and of postvention materials. We summarize the presentations below.     

Postmemory and Possession

International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - This paper examines the phenomena of ‘postmemory’ as a mode of possession that...     

Postmortem Computed Tomography and Magnetic Resonance Imaging of Gunshot Wounds to the Neck

Postmortem magnetic resonance imaging (MRI) is rarely used for the radiologic assessment of gunshot injuries, although it has clear advantages over postmortem computed tomography (CT) with regard to the imaging of soft tissue injuries. Another benefit in using MRI is that lodged projectiles composed of nonferromagnetic material such as lead present only marginal metal artifacts compared with severe artifacts on CT. This case report presents CT and MRI findings in a case with two gunshot wounds to the neck: a perforating wound and a nonperforating wound with a lead bullet lodged in the cervical spine. The decedent underwent CT and MRI before the scheduled autopsy. A ring of radiopaque material under the dermis in the fatty tissue was identified at both entrance wounds on CT, which was indicative of contact shots. The perforating gunshot was clearly indicated on CT by bullet fragments along the wound channel through the perforated 6th cervical vertebra and the fractured cricoid cartilage at the exit wound. The second trajectory, however, was only assumed based on the presence of gunshot residues at the entrance wound and the position of the lodged bullet. The radiologic assessment was severely impeded by the metal artifacts on CT. Barely noticeable metal artifacts on MRI allowed for clear visualization of the soft tissue injuries and the ruptured medulla oblongata. Only MRI clarified the soft tissue injuries of the brainstem noninvasively, which could provide specific and graphic information on the rapidity of death and the incapacitation of the victim.     

Examination of Hacking and Blunt Force Skeletal Trauma

Hacking trauma is prevalent in forensic cases involving genocide and dismemberment, but research into the identification of this type of trauma is lacking. The present study examines characteristics of hacking and blunt force skeletal trauma in order to determine if there is a point at which blunt force trauma becomes distinguishable from hacking trauma. Ten implements with a range of blade angles (i.e., the striking surface of the implement) were used in conjunction with a controlled-force hacking device to impact 100 limb bones of white-tailed deer (Odocoileus virginianus). Observations of the trauma included the occurrence and degree of fragmentation, the entrance widths of the impacts, and composite scores of six hacking characteristics, especially the distinctive V-shaped kerf. ANOVA tests and regression analyses were used to assess the relationships between these characteristics and the blade angles. A significant relationship (p-value = 0.011) was found between the composite hacking scores and the blade angles, indicating that blunt force and hacking trauma can be distinguished. The entrance widths of the impacts exhibited a significant relationship with the blade angles (p-value = 0.037). There was also a significant relationship between the visibility of a V-shaped kerf in the bones (p-value = 0.003), with visibility decreasing around the 60° blade angle. These data should assist in establishing guidelines to differentiate hacking and blunt force skeletal trauma in cases where the implement is on a spectrum between sharp and blunt.