Locus of peer influence: Social crowd and best friend

This study examined the relative influence of the best friends and social crowds of older adolescents on cigarette smoking. The data were examined to determine if there were differences in influence as a function of sex, conformity, or the mutuality of the friendship. This study used a longitudinal design that enabled the separation of the effects of peer influence from those of selective association. The results showed that social crowds differed in mean level of cigarette smoking, with burnouts smoking the most and jock/preps smoking the least. The majority of best friendships were homogeneous for social crowd. Best friend influence predicted change in cigarette smoking over a one-year period, while social crowd influence appeared to be minimal. Conformity was positively related to susceptibility to peer influence, although mutuality of the friendship and sex of the subject were not.This research was supported by NIH grant HD18425 awarded to Kathryn Urberg.Obtained Ph.D. from the University of Wisconsin in the Department of Educational Psychology. A developmental psychologist, her major area of interest is adolescent social development.     

Canada's voluntary ARET program: Limited success despite industry cosponsorship

The Accelerated Reduction/Elimination of Toxins (ARET) Challenge was a voluntary program initiated in 1994 by the Government of Canada. Unlike the U.S. 33/50 Program, ARET involved industry partners in negotiation and cosponsorship of the program, with the intention that early involvement would yield stronger commitment to voluntary reductions. We review the program's self‐reported success in delivering emissions reductions. For 17 ARET substances that were also covered by Canada's National Pollutant Release Inventory, we employ treatment effects regressions to control for self‐selection bias. We find evidence that ARET accelerated emission reductions in five cases, slowed reductions in two cases, and had no discernible effect in ten cases. Industry cosponsorship apparently did not have the intended effect and instead resulted in program features such as data confidentiality that significantly undermined the program's credibility. © 2007 by the Association for Public Policy Analysis and Management     

Comparison of presumptive blood test kits including hexagon OBTI

Four presumptive blood tests, Hexagon OBTI, Hemastix(R), Leucomalachite green (LMG), and Kastle-Meyer (KM) were compared for their sensitivity in the identification of dried bloodstains. Stains of varying blood dilutions were subjected to each presumptive test and the results compared. The Hexagon OBTI buffer volume was also reduced to ascertain whether this increased the sensitivity of the kit. The study found that Hemastix(R) was the most sensitive test for trace blood detection. Only with the reduced buffer volume was the Hexagon OBTI kit as sensitive as the LMG and KM tests. However, the Hexagon OBTI kit has the advantage of being a primate specific blood detection kit. This study also investigated whether the OBTI buffer within the kit could be utilized for DNA profiling after presumptive testing. The results show that DNA profiles can be obtained from the Hexagon OBTI kit buffer directly.     

National and Imperial Belonging in Wartime: The Tangled Knot of Australians and New Zealanders as British Subjects during the Great War

The Great War is considered nationally foundational in both Australia and New Zealand. Yet, as critics of this view point out, British subjecthood remained important and sometimes central to identity at this time. This article pulls two threads from this tangled knot of belonging at a time when identifying and regulating loyal populations was critical. Looking at evidence of those Australians and New Zealanders who served in imperial forces and organisations, and the implications of passport control from 1915, I suggest that the relationship between British subjecthood and national identification was not always easily managed, and was often cut across by gender. Indeed, there is evidence that one's identification as a British subject or an Australasian citizen was not always a matter of choice or positive, and sometimes these identities were antagonists. The significant tensions between British subjecthood and being an “Australian” or a “New Zealander” were especially heightened by the increasingly intimate relationship between governments and their people during the First World War.     

Political Power and Civil Counterpower: The Complex Dynamics of the Catalan Independence Movement

Civil proindependence associations are playing an increasingly significant role in Catalonia's independence movement, putting pressure on the Catalan government to work decisively towards independence. This has led many Catalans to characterize the movement as a “bottom-up” phenomenon. This contribution analyzes the shifting power dynamics within mainstream Catalan nationalism over the last decade, challenging simplistic notions of “top-down” and “bottom-up” pressures for change. In fact, the movement is now inherently multidimensional—partly thanks to the pivotal role of the cultural elites and their grasp of the power of new media—and this in itself accounts in large part for its success.     

Evaluation of Commercial Kits for Dual Extraction of DNA and RNA from Human Body Fluids, ,

STR typing of DNA evidence can identify the donor with a high power of discrimination but cannot identify the tissue origin of a body‐fluid stain. Using RNA to attribute a crime scene stain to a particular tissue may aid in reconstruction efforts. With blood from 10 donors, four DNA and RNA coextraction kits were evaluated by measuring yields and STR and mRNA profiles. T tests indicated some significant differences in kit performance. The Zymo Research ZR‐Duet^? kit performed best based on average DNA (41.4 ng) and mRNA (4.07 ng) yields and was the only kit to provide complete DNA/RNA profiles for all samples. The consistency of this kit was challenged by data from additional blood and saliva donors. Further testing is advised before a superior kit is unequivocally chosen. Stand‐alone DNA or RNA purification generally offers higher yield, but coextraction may still allow successful STR profiling and tissue source identification.     

Aids outreach

Frank Espada is a documentary photographer who received international recognition for his Puerto Rican Diaspora Documentary Project, a traveling photographic and oral history that has been displayed in over 28 cities since 1982. The exhibit will soon be published as a book by Temple University Press.