Isolation of deoxyribonucleic acid (DNA) from saliva and forensic science samples containing saliva.

Saliva and saliva-stained materials were examined as potential sources of deoxyribonucleic acid (DNA) for DNA analysis and identity testing. In this paper, the authors demonstrate that DNA was isolated and DNA banding patterns suitable for DNA typing were obtained from fresh saliva and various saliva-stained materials, such as envelopes, buccal swabs, gags, and cigarettes. Furthermore, DNA and DNA banding patterns were obtained from actual forensic evidentiary samples containing mixed saliva/semen stains. The DNA banding patterns obtained from saliva or saliva-stained material were indistinguishable from the patterns obtained from blood or hair from the same individual. Intact DNA was readily isolated and DNA banding patterns were obtained from saliva stored at -20 degrees C and dried saliva stains stored under varying conditions. We conclude that saliva and saliva-stained material can be good sources of DNA for analysis and for DNA typing in certain forensic settings.     

Effect of heroin in decomposing tissues on the development rate of Boettcherisca peregrina (Diptera, Sarcophagidae) and implications of this effect on estimation of postmortem intervals using arthropod development patterns

Larvae of the flesh fly Boettcherisca peregrina (Robineau-Desvoidy) were reared on the tissues of rabbits to study the effects of heroin on the development rates of this species. The rabbits were given 6, 12, 18, and 24 mg of heroin by cardiac puncture. From Hours 18 to 96, larvae feeding on tissues containing heroin (as morphine) developed more rapidly than those feeding on tissues from the control. The time required for pupation was significantly greater for colonies fed on tissues from heroin-dosed rabbits than for the control colony. The differences observed in the rates of development were sufficient to alter postmortem interval estimates based on larval development by up to 29 h and estimates based on pupal development by 18 to 38 h.     

On money and memory: Political economy of cross-border engagement on the politically divided Armenia-Turkey frontier

Complicated historical memories and mutual distrust coupled with decades of Cold War separation have prevented the Iron Curtain from lifting on the border between Turkey and Armenia. Indeed the end of the Cold War has seen tension between these two countries escalate further over the conflict between the Armenian population of Nagorno-Karabakh and the republic of Azerbaijan. Turkey, having allied itself with Azerbaijan in this dispute, has made diplomatic engagement with Armenia conditional on the settlement of this conflict. Paradoxically, despite a trade and transport blockade imposed on Armenia by Turkey and Azerbaijan, economic ties in the region have not disappeared. This discrepancy between the political and diplomatic rhetoric and the economic and developmental realities on the ground motivates the present study. Drawing from the Armenian context the study illustrates how the tension between political interests and business interests are manifested and managed in Armenia. Generalising from this study, the work presented here maintains that weak cross-border governance capacities in the developing world can influence abilities to utilise, leverage and manage globalisation and, further, in politically divided regions they can undermine prospects of constructive engagement between the conflicting sides. It argues that the promotion of liberal statehood in developing countries characterised by small governments does little to assist the development of cross-sectoral links between the public and private sectors within a region, such cross-sectoral links being important ingredients in the promotion of cross-border regionalism.     

Mexico, the PRI, and López Obrador: The Legacy of Corporatism

Although differences between the Mexican and U.S. political systems have narrowed of late, a huge gulf continues to separate the two systems. At the heart of this disparity lies the phenomenon of corporatism, a social concept that is virtually absent in U.S. political discourse and traditions. This article considers the intellectual origins of corporatism, why it meshes so well with Ibero-Hispanic society, and how Mexico City's former mayor, Andrés Manuel López Obrador, fashioned his own brand of corporatism to confront the administration of Felipe Calderón Hinojosa, who defeated him in the July 2006 presidential race.