Views of public health leaders in English local authorities – changing perspectives following the transfer of responsibilities from the National Health Service to local government

This paper reports on the findings of a research project that examined the changes to the public health system in England introduced in 2013. Drawing on case study research and two national surveys the findings explore the impact of organisational change on the composition and role of public health teams. Views and experiences were obtained from public health leaders involved in the transfer of staff and functions from the National Health Service in England to local authorities. National surveys at two points in time aimed to compare and contrast views on the evolving changes. The new organisational and managerial arrangements had enabled public health professionals to widen their work and influence, and public health skills and budgets were welcomed by those in local government. Initially, in some areas, directors of public health were less certain of the benefits of the transfer to local government compared to high levels of confidence expressed by elected members, but perspectives changed over time and moved closer together. National headline figures were found to mask high levels of turbulence and churn being experienced by individual authorities identified in the case study research, and the trend of reducing capacity through cuts to staff, budget and services was a cause for serious concern.     

Relationship between type of trauma exposure and posttraumatic stress disorder among urban children and adolescents

This study examines the association between trauma exposure and posttraumatic stress disorder (PTSD) among 157 help-seeking children (aged 8-17). Structured clinical interviews are carried out, and linear and logistic regression analyses are conducted to examine the relationship between PTSD and type of trauma exposure controlling for age, gender, and ethnicity. Confrontation with traumatic news, witnessing domestic violence, physical abuse, and sexual abuse are each significantly associated with PTSD. Witnessing a crime, being the victim of a crime, and exposure to accidents, fire, or disaster are not associated with PTSD. These findings underscore the association between interpersonal violence and childhood PTSD.     

Stable isotope ratio mass spectrometry and physical comparison for the forensic examination of grip-seal plastic bags

Plastic bags are frequently used to package drugs, explosives and other contraband. There exists, therefore, a requirement in forensic casework to compare bags found at different locations. This is currently achieved almost exclusively by the use of physical comparisons such as birefringence patterns. This paper discusses some of the advantages and shortcomings of this approach, and presents stable isotope ratio mass spectrometry (IRMS) as a supplementary tool for effecting comparisons of this nature. Carbon and hydrogen isotopic data are presented for sixteen grip-seal plastic bags from a wide range of sources, in order to demonstrate the range of values which is likely to be encountered. Both isotopic and physical comparison (specifically birefringence) techniques are then applied to the analysis of rolls of bags from different manufacturing lots from a leading manufacturer. Both approaches are able to associate bags from a common production batch. IRMS can be applied to small fragments which are not amenable to physical comparisons, and is able to discriminate bags which could be confused using birefringence patterns alone. Similarly, in certain cases birefringence patterns discriminate bags with similar isotopic compositions. The two approaches are therefore complementary. When more than one isotopically distinct region exists within a bag (e.g. the grip-seal is distinct from the body) the ability to discriminate and associate bags is greatly increased.     

Keeping Up with the Souzas: Social Influence and Electoral Change in a Weak Party System,Brazil 2002–2006

Despite weak partisanship and considerable political change in the wake of the 2002 election, three‐quarters of Brazilian voters supported a presidential candidate in 2006 from the same party they had backed in 2002. This article assesses the factors causing both electoral stability and electoral change with a transition model, a model testing whether the effects of respondents' evaluative criteria depend on their initial vote choices. Social context—personal discussion networks, neighborhood influences, and the interactions of social networks and municipal context—is the major force promoting stability and change, while the impact of partisanship is limited to a small share of voters.     

Headspace concentrations of explosive vapors in containers designed for canine testing and training: theory, experiment, and canine trials

It is a common misconception that the amount of explosive is the chief contributor to the quantity of vapor that is available to trained canines. In fact, this quantity (known as odor availability) depends not only on the amount of explosive material, but also the container volume, explosive vapor pressure and temperature. In order to better understand odor availability, headspace experiments were conducted and the results were compared to theory. The vapor-phase concentrations of three liquid explosives (nitromethane, nitroethane and nitropropane) were predicted using the Ideal Gas Law for containers of various volumes that are in use for canine testing. These predictions were verified through experiments that varied the amount of sample, the container size, and the temperature. These results demonstrated that the amount of sample that is needed to saturate different sized containers is small, predictable and agrees well with theory. In general, and as expected, once the headspace of a container is saturated, any subsequent increase in sample volume will not result in the release of more vapors. The ability of canines to recognize and alert to differing amounts of nitromethane has also been studied. In particular, it was found that the response of trained canines is independent of the amount of nitromethane present, provided it is a sufficient quantity to saturate the container in which it is held.     

The Doolittle commission of 1954

Many scholars and other writers have dismissed the 1954 Doolittle Commission as an Eisenhower administration tactic to protect CIA covert operations from congressional investigation. Evidence about the commission and its report, however, suggests that this view may be incomplete. Clarification of the commission's precise purpose may serve the wider study of US covert action policy in the 1950s and congressional oversight of the CIA. In particular, the report's recommendations for bold covert action abroad may reveal how administration covert action policy attracted congressional attention to the CIA.