780 research outputs found
A search for massive neutral particles in e+e- annihilation
Imperial Users onl
Developing Walvis Bay Port into a logistics gateway for southern Africa: Issues, challenges and the potential implications for Namibiaâs future
Many developing countries wish to become the âgatewayâ to a region or part of a continent.One strategy involves encouraging logistics cluster development. These hubs support global supply chains and may enable the economic growth of the host country through the resulting trade, as well as providing direct and indirect employment opportunities during the build and subsequent operation of the hub. Namibia intends to develop the Port of Walvis Bay to be come the preferred gateway to southern Africa and the Southern African Development Community region. This article builds on research on Caribbean cluster potential and Namibian logistics to identify the potential benefits and impact on development, as well as the drawbacks and risks of such a strategy
The analysis of TRICARE Navy obstetric delivery costs within continental United States military treatment facilities
MBA Professional ReportNavy medicine spends approximately $75 million on purchased obstetric (OB) care for Navy personnel and their dependents, a sum that continues to increase each year. The purpose of this research is to compare the cost of Navy OB medical care under TRICARE Prime (civilian sector) with similar care provided in four representative Navy Medical Treatment Facilities (MTF). Specifically, the study will examine (1) the quantity of selected deliveries in TRICARE and four specific MTF catchment areas; (2) the average delivery cost for the different types of Purchased Care (PC) deliveries, and (3) best practice techniques to increase the amount of Direct Care (DC) deliveries care in Navy Medicine. The goal of this study is to compare the benefits and drawbacks of each system to gain insights for providing better and more cost-effective OB care in the Navy.http://archive.org/details/thenalysisoftric1094510397Approved for public release; distribution is unlimited
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Accountability and Transparency of Entrepreneurial Journalism: Unresolved ethical issues in crowdfunded journalism projects
Crowdfunding is a new business model in which journalists relyâand dependâon (micro-) payments by a large number of supporters to finance their reporting. In this form of entrepreneurial journalism the roles of publisher, fundraiser and journalist often overlap. This raises questions about conflicts of interest, accountability and transparency. The article presents the results of selected case studies in four different European countriesâGermany (Krautreporter), Italy (Occhidellaguerra), the United Kingdom (Contributoria) and the Netherlands (De Correspondent)âas well as one US example (Kickstarter). The study used a two-step methodological approach: first a content analysis of the websites and the Twitter accounts with regard to practices of media accountability, transparency and user participation was undertaken. The aim was to investigate how far ethical challenges in crowdfunded entrepreneurial journalism are accounted for. Second, we present findings from semi-structured interviews with journalists from each crowdfunding. The study provides evidence about the ethical issues in this area, particularly in relation to production transparency and responsiveness. The study also shows that in some cases of crowdfunding (platforms), accountability is outsourced and implemented only through the audience participation
Dynamics and stress in gravity driven granular flow
We study, using simulations, the steady-state flow of dry sand driven by
gravity in two-dimensions. An investigation of the microscopic grain dynamics
reveals that grains remain separated but with a power-law distribution of
distances and times between collisions.
While there are large random grain velocities, many of these fluctuations are
correlated across the system and local rearrangements are very slow. Stresses
in the system are almost entirely transfered by collisions and the structure of
the stress tensor comes almost entirely from a bias in the directions in which
collisions occur.Comment: 4 pages, 3 eps figures, RevTe
How and why children instigate talk in pediatric allergy consultations : a conversation analytic account
Involving children in their healthcare encounter is a national and international priority. While existing research has examined the ways in which children are recruited to participate in the consultation, no work has examined whether and how children instigate talk, and the extent to which their contributions are successful. This paper presents a conversation analysis of a selection of 10 out of 30 video recordings in which children aged 4â10 years instigate talk during consultations they attend with their parents/carers at a UK pediatric clinic. The analysis reveals for the first time that children do successfully instigate talk without being asked or selected in 22 episodes during their consultation with the doctor. Children most frequently address their parent/carer (16/22). They capitalize on specific contexts within the consultation to instigate talk, for example: history-taking questions about what they ate or how they reacted (10/22); or discussions surrounding the child's feelings or sensations following the skin-prick testing (7/22) - aspects of experience to which they have access. Children's non-solicited talk necessarily occurs when they are not currently active participators and children engage in extra interactional work including various verbal strategies (summons and prosodic variations) and non-verbal resources (tapping and gaze) to break into the interaction. The benefits of their contributions include the opportunity to affirm the child's role as a legitimate contributor, and the potential for additional medically-relevant information to arise which could enrich the clinical process. Our analysis shows that the previously overlooked phenomenon of children instigating talk, although not common, can play a crucial role in the consultation. We suggest that strategies to increase such involvement have the potential to augment the healthcare process. Our findings offer a critical baseline for the introduction of new consultations models, such as digital appointments, which may exclude some children completely
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