Using STR analysis to detect human DNA from exploded pipe bomb devices

This study investigated the possibility of recovering a bomb assembler's DNA from an exploded pipe bomb device. Metal and polyvinyl chloride (PVC) pipes were examined to determine if one surface type would allow better DNA recovery than the other. Ten subjects each handled components of one metal and one PVC pipe bomb. The bombs were exploded, the fragments were collected and swabbed using the double swab technique, and the samples were extracted, quantified, amplified, and genotyped using polymerase chain reaction/short tandem repeat (PCR/STR). Of the 20 bombs handled by the subjects, four bombs gave reportable results that matched the subject's known DNA profiles. An additional eight profiles, also matching the subject's known DNA profiles, were generated but were below the reportable threshold. There was no difference in the success rate of obtaining DNA profiles related to the use of either PVC or metal in the manufacture of the pipe bomb. The variables that appeared to have the greatest influence on the success of generating a DNA profile were the amount of fragmentation and subsequent recovery of the bomb fragments. It is suspected that successful DNA profiling could also be dependent upon the bomb assembler's propensity to slough skin cells on objects they handled.     

Is domestic violence relevant?: An exploratory analysis of couples referred for mediation in family court

Mediation is an essential component of custody evaluation and reconciliation services in domestic courts. Data from 306 couples with and without a reported history of domestic violence (DV) who were ordered to attend an assessment for mediation were analyzed to determine differences in the mediation process. More than one third reported a history of DV. Chi-square analysis showed that differences in the mediation process exist between couples reporting DV and couples reporting no DV. A greater proportion of couples with reported DV (a) actually attended the court-mandated assessment session, (b) were deemed unsuitable to participate in the mediation process, (c) were in default of child-support payments, and (d) reported drug and alcohol abuse. No significant differences were found between the two groups in the measured mediation outcomes. Implications for the use of mediation with couples who reported DV and recommendations for future research are discussed.     

Political Data in 1998

European Journal of Political Research -     

Party as Linkage

Abstract Until recent years, two major trends in European politics-the growth of State services and increased political participation-have complemented the central role of parties. This paper argues that this complementarity may have started to come unstuck, and questions the future viability of the mass party as a result of a shift in the balance of perceived advantages of the mass party by both leaders and members. The paper discusses several potential costs and benefits of party membership for leaders and members. Using membership statistics and survey data the reasonableness of these arguments is explored.     

Fertility decline and social service access: Reconciling behavioral and medical models

In this summary of fertility literature the author attempts to differentiate between the effects of behavioral and medical models of family planning programs on the fertility rate. This is done by determining the effects of access to social welfare services by assessment of: the function of children within the family life survey conducted in the Cameroons are also used. It was found that 7 interdependent elements of social service are involved: 1) general health care; 2) social security for sick and aged; 3) employment training and opportunities for adults; 4) literacy and education; 5) communication and transportation systems; 6) housing and infrastructure; 7) child care and welfare. The presence of these elements is shown to accompany low fertility while their absence is expressed in high rates of child bearing. These elements are major variables in both the nomological and public policy senses. 2 additional components are knowledge of and favorable attitudes towards effective means of fertility control plus effective mechanical, chemical, or natural means of limiting fertility. The concept of fertility norm and its impact on the fertility rate is explained as being the result of the collective force which social affiliations exert on people to reproduce in a certain way. The "stopping rule" is that which will fulfill the fertility norm. An example of this is a culture which continues child bearing until a son has been born and then controls reproduction after this has happened. Such factors must be considered for family planning programs to succeed in these cultures. Therefore fertility levels are found to be the product of prevailing norms and technical ability to achieve these norms. Improvement in levels of access to social services can bring about the lowering of these norms.