Isothermal heat flux sensing unit Final report, Jun. 21, 1967 - Jan. 2, 1968

Thermal analysis, theory of operation, and operating instructions for isothermal heat flux sensing uni

Compressive behavior of titanium alloy skin-stiffener specimens selectively reinforced with boron-aluminum composite

A method of selectively reinforcing a conventional titanium airframe structure with unidirectional boron-aluminum composite attached by brazing was successfully demonstrated in compression tests of short skin-stiffener specimens. In a comparison with all-titanium specimens, improvements in structural performance recorded for the composite-reinforced specimens exceeded 25 percent on an equivalent-weight basis over the range from room temperature to 700 K (800 F) in terms of both initial buckling and maximum strengths. Performance at room temperature was not affected by prior exposure at 588 K (600 F) for 1000 hours in air or by 400 thermal cycles between 219 K and 588 K (-65 F and 600 F). The experimental results were generally predictable from existing analytical procedures. No evidence of failure was observed in the braze between the boron-aluminum composite and the titanium alloy

Gated communities, sustainable cities and a tragedy of the urban commons

This paper explores the political, financial and environmental sustainability of private communities. Using a theoretical approach that views the private residential community as a club economy, we analyze the planning and managing practices of 219 gated residential communities in the Los Angeles area. This investigation demonstrates that private urban governance is a locally sustainable solution that might help stabilize the financing of urban growth, redevelop aging neighborhoods, maintain social diversity, conserve non-renewable urban resources, and encourage reinvestment in urban infrastructure. However, these gains are not made without social costs and spillovers. Breaking down municipal management into smaller units might deliver a more economically sustainable urban system on the whole, but only at the expense of marginalizing those excluded from the club economy. In addition, private urban governance is still dependent on state subsidy. This new urban dynamic will become more important as private associations attempt to increase the public subsidy of their activities and municipal governments look for ways to reduce their liabilities through private sector providers.postprin

If surveillance cameras are to be kept in line, the rules will have to keep pace with technology

First paragraph: It has been said that Britain has more surveillance cameras than any other country in the world. This proliferation of CCTV cameras led the government to establish a surveillance camera commissioner responsible for overseeing their governance – the only country in the world to do so. In another first, the commissioner has now released a national strategy for England and Wales to set out how CCTV should be operated and to ensure that cameras are used in the public interest

Interconnections Between Technological and Policy Innovation: Re-evaluating the Evidence-Base Supporting the Provision of CCTV in the UK

This article critically examines developments in CCTV (Closed Circuit Television) policy and provision in the UK, with specific reference to the ‘evidence-based’ approach to policy-making and service provision. The main features of the CCTV revolutions are examined from a policy perspective, so that intertwined changes in purpose and technological configuration are illuminated. The underlying premise of evidence-based policy is that a robust and reliable evidence base exists and that this body of knowledge is used rationally to inform changes in policy and practice. However, in the case of CCTV, there are a range of issues associated with the evidence base which seem to contradict the logic of continued CCTV provision. In this article these issues are explored through what the author calls five CCTV fallacies. These fallacies raise important questions, not just about the ongoing provision of CCTV, but the nature of modern public policy making procedures

Floor Mapping: A Novel Method of Integrating Anatomical Structure with Immunological Function

Session - Assessment (Abstract)This free journal suppl. entitled: Special Issue: Abstracts of the 13th Asia Pacific Medical Education Conference (APMEC) ... 2016The Biomedical Common Year 1 occurs prior to admission to the medical programme. Students achieving a grade point average over 6.0 are eligible for an admissions interview. The research question of the study was, “If students have a definite interest in becoming a future doctor in their premedical course, does this relate to their levels of motivation, competitiveness, perceived stress, quality of life and grade attainment?” A total of 1369 students who completed a high stakes biosciences assessment were asked to disclose their grade (converted to a numerical value) and to complete the Motivated Strategies for Learning Questionnaire, a World Health Organisation Quality Of Life (QoL) questionnaire, Perceived Stress Scale, and Revised Competitiveness Index. To explore differences between those students who aimed to be doctors vs those who did not, a binary logistic regression was conducted. Twenty five percent of students participated in the research. Significant predictors of course intention (medicine; other) were academic attainment, perceived stress, and physical and environmental QoL. Post hoc analyses revealed that perceived stress and physical QoL were moderating variables. Students with an intention to become a doctor tend to attain higher grades and have better environmental quality of life scores. This may indicate that students who are admitted into medical school gain higher grades but also likely come from more affluent and well-resourced backgrounds. Physical health problems and perceived stress are likely to moderate the impact of grade achievement, environmental QoL, competition and motivation.link_to_OA_fulltex

The hypocretin/orexin antagonist almorexant promotes sleep without impairment of performance in rats.

The hypocretin receptor (HcrtR) antagonist almorexant (ALM) has potent hypnotic actions but little is known about neurocognitive performance in the presence of ALM. HcrtR antagonists are hypothesized to induce sleep by disfacilitation of wake-promoting systems whereas GABAA receptor modulators such as zolpidem (ZOL) induce sleep through general inhibition of neural activity. To test the hypothesis that less functional impairment results from HcrtR antagonist-induced sleep, we evaluated the performance of rats in the Morris Water Maze in the presence of ALM vs. ZOL. Performance in spatial reference memory (SRM) and spatial working memory (SWM) tasks were assessed during the dark period after equipotent sleep-promoting doses (100 mg/kg, po) following undisturbed and sleep deprivation (SD) conditions. ALM-treated rats were indistinguishable from vehicle (VEH)-treated rats for all SRM performance measures (distance traveled, latency to enter, time within, and number of entries into, the target quadrant) after both the undisturbed and 6 h SD conditions. In contrast, rats administered ZOL showed impairments in all parameters measured compared to VEH or ALM in the undisturbed conditions. Following SD, ZOL-treated rats also showed impairments in all measures. ALM-treated rats were similar to VEH-treated rats for all SWM measures (velocity, time to locate the platform and success rate at finding the platform within 60 s) after both the undisturbed and SD conditions. In contrast, ZOL-treated rats showed impairments in velocity and in the time to locate the platform. Importantly, ZOL rats only completed the task 23-50% of the time while ALM and VEH rats completed the task 79-100% of the time. Thus, following equipotent sleep-promoting doses, ZOL impaired rats in both memory tasks while ALM rats performed at levels comparable to VEH rats. These results are consistent with the hypothesis that less impairment results from HcrtR antagonism than from GABAA-induced inhibition

The value of Big Data in government: The case of 'smart cities'

The emergence of Big Data has added a new aspect to conceptualizing the use of digital technologies in the delivery of public services and for realizing digital governance. This article explores, via the ‘value-chain’ approach, the evolution of digital governance research, and aligns it with current developments associated with data analytics, often referred to as ‘Big Data’. In many ways, the current discourse around Big Data reiterates and repeats established commentaries within the eGovernment research community. This body of knowledge provides an opportunity to reflect on the ‘promise’ of Big Data, both in relation to service delivery and policy formulation. This includes, issues associated with the quality and reliability of data, from mixing public and private sector data, issues associated with the ownership of raw and manip- ulated data, and ethical issues concerning surveillance and privacy. These insights and the issues raised help assess the value of Big Data in government and smart city environments