The presence of trace amines in postmortem cerebrospinal fluid in humans

The postmortem levels of biogenic amines in cerebrospinal fluid may represent a useful tool in defining some pathological conditions; no information is available concerning the occurrence of trace amines in postmortem cerebrospinal fluid. Thus, the occurrence of octopamine, synephrine and tyramine were evaluated by using a HPLC system in 20 postmortem samples of cerebrospinal fluid (obtained from 11 males and 9 females) and their levels were compared with those of 20 living subjects (obtained from 11 males and 9 females). The results show that trace amines dramatically increase in the postmortem cerebrospinal fluid (100, 20, and 4 fold increase for tyramine, octopamine, and synephrine respectively). To our knowledge, our data represent the first time trace amines have been identified in postmortem cerebrospinal fluid and the dramatic increase observed for tyramine has the potential of becoming a new tool in forensic science for better defining the time of death.     

Legalization and dissolution of consensual unions: an example of log-linear models used to estimate models of competing risk

"This is a mainly methodological work: a generalization of the so-called proportional risk models to cases of multiple and competing risks.... Proportional risk models are an extension of the methodology implied in calculating mortality tables, where the risk function is made to depend on some variables (covariables), as in a regression model.... Life-table methodology has been...an essential instrument in demographic calculus and analysis." The author uses the proposed methods to analyze the determinants of the legalization and dissolution of consensual unions in Mexico. (EXCERPT)     

Cleaning Puparia for Forensic Analysis

We tested procedures for removing adipocere from insect samples to allow identification. An acceptable procedure was determined: (i) Samples were sorted in petri dishes with 75% alcohol to remove any larvae, adult insects, or other soft‐bodied material. (ii) Samples of up to 24 puparia were placed in a vial with 15 mL of 95% acetone, capped, and vortexed for a total of 30–90 sec in 10‐ to 15‐sec bursts. This step removed large masses of adipocere or soil from specimen. (iii) Specimens were removed from acetone and placed in a vial of 15 mL of 2% potassium hydroxide (KOH) and vortexed in 10‐ to 15‐sec bursts until all puparia appeared clean (with our samples this required a total of 60–120 sec). (iv) Specimens were removed from the 2% KOH, placed in 75% ethanol, and examined microscopically. (v) Material was stored in 75% ethanol for identification and long‐term preservation.     

Intergovernmental councils in Spain: Challenges and opportunities in a changing political context

ABSTRACT

This paper reviews the most important characteristics and of the Spanish Intergovernmental Councils (IGCs) and theorizes about the effect of the increasing fragmentation of the party system on the nature and dynamics of multilateral bargaining in IGCs. The essential argument is that party system fragmentation may have an impact on IGCs through its effect on the formation of minority and coalition governments. These types of governments may put an end to the two-bloc confrontation, bring to the system higher levels of party congruence between levels of government and lower the costs of compromise, three factors that may help to grease the bargaining process and, in turn, enhance the achievement of intergovernmental cooperation agreements. The positive effect will be conditional on several factors, namely the ideological coherence of inter-party alliances, the predominant type of government in the system (coalition or single-party minority) and the duration of governments.