896 research outputs found
Healthcare choice: Discourses, perceptions, experiences and practices
Policy discourse shaped by neoliberal ideology, with its emphasis on marketisation and competition, has highlighted the importance of choice in the context of healthcare and health systems globally. Yet, evidence about how so-called consumers perceive and experience healthcare choice is in short supply and limited to specific healthcare systems, primarily in the Global North. This special issue aims to explore how choice is perceived and utilised in the context of different systems of healthcare throughout the world, where choice, at least in policy and organisational terms, has been embedded for some time. The articles are divided into those emphasising: embodiment and the meaning of choice; social processes associated with choice; the uncertainties, risks and trust involved in making choices; and issues of access and inequality associated with enacting choice. These sociological studies reveal complexities not always captured in policy discourse and suggest that the commodification of healthcare is particularly problematic
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Distribution of Benthic Macroinvertebrates Beaumont Port Arthur Area
On March 1, 1976, the Bureau of Economic Geology initiated an extensive program of benthic sampling in the State submerged lands (McGowen and Morton, 1979). The state-owned submerged lands of Texas cover nearly 6,000 square miles (15,540 km2) and extend from Mexico to Louisiana. This area includes bays, estuaries, lagoons, and the inner continental shelf located 10.3 miles (16.6 km) seaward of the Gulf shoreline (see fig. 1). Benthic samples were collected at 1-mile (1.6-km) intervals. By January 1978, a total of 6,697 samples had been collected. Sample analysis encompassed textural studies (grain size properties), geochemistry (trace elements and total organic carbon), and biological studies.
This report focuses on the biology of the submerged lands in the Beaumont-Port Arthur area and provides preliminary information on benthic macroinvertebrate assemblages and diversity. It serves as a baseline inventory of biological data necessary to predict and assess potential problems and environmental impacts related to energy production, food production, recreation, and transportation.Bureau of Economic Geolog
Trust, regulatory processes and NICE decision-making: Appraising cost-effectiveness models through appraising people and systems.
This article presents an ethnographic study of regulatory decision-making regarding the cost-effectiveness of expensive medicines at the National Institute for Health and Care Excellence (NICE) in England. We explored trust as one important mechanism by which problems of complexity and uncertainty were resolved. Existing studies note the salience of trust for regulatory decisions, by which the appraisal of people becomes a proxy for appraising technologies themselves. Although such (dis)trust in manufacturers was one important influence, we describe a more intricate web of (dis)trust relations also involving various expert advisors, fellow committee members and committee Chairs. Within these complex chains of relations, we found examples of both more blind-acquiescent and more critical-investigative forms of trust as well as, at times, pronounced distrust. Difficulties in overcoming uncertainty through other means obliged trust in some contexts, although not in others. (Dis)trust was constructed through inferences involving abstract systems alongside actorsâ oral and written presentations-of-self. Systemic features and âforced optionsâ to trust indicate potential insidious processes of regulatory capture
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Status and Trends of Inland Wetland and Aquatic Habitats in the Corpus Christi Area
Wetland and aquatic habitats are essential components of estuarine systems along the Texas coast. These valuable resources are highly productive biologically and chemically and are part of an ecosystem on which a variety of flora and fauna depend. Scientific investigations of wetland distribution and abundance through time are prerequisites to effective habitat management, thereby ensuring their protection and preservation and directly promoting long-term biological productivity and public use. This report presents results of an investigation to determine the current status and historical trends of wetlands and associated aquatic habitats in the Corpus Christi area from Lamar Peninsula to Encinal Peninsula. The study area encompasses most of the mainland between the Gulf Intracoastal Waterway (GIWW) and the Texas General Land Office Coastal Management Program boundary, an area located within Refugio, Aransas, San Patricio, and Nueces Counties (Fig. 1). Natural environments include wetlands, wind-tidal flats, riparian woodlands, and bay shorelines. The methods and classification system used in this report follow those found in the Texas coastal barrier-island report for the Coastal Bend (White et al., 2002).Bureau of Economic Geolog
Zinc oxide films grown by galvanic deposition from 99% metals basis zinc nitrate electrolyte
The use of relatively low purity zinc nitrate for electrochemical deposition
of compact ZnO films is attractive for large scale production because of the
cost saving potential. ZnO films were grown on SnO2:F and magnetron sputtered
ZnO:Al templates using a three electrode potentiostatic system in galvanic
mode. The electrolyte consisted of a 0.1 M zinc nitrate solution (either
99.998% or 99% purity) and 1 mM aluminium nitrate for extrinsic doping, when
required. Moderate deposition rates of up to 0.9 nm sâ1 were achieved on
ZnO:Al templates with lower rates of up to 0.5 nm sâ1 on SnO2:F templates.
Observation of SEM images of the films revealed a wall-like morphology whose
lateral thickness (parallel to the substrate) reduced as aluminium was added
to the system either in the electrolyte or from the substrate. However, pre-
deposition activation of the template by applying a negative voltage
(approximately â2 V) allowed the growth of compact films even for the low
purity electrolyte. The optical band gap energy of intrinsically doped films
was lower than that of the Al doped films. The composite electrical
conductivity of all the films studied, as inferred from sheet resistance and
Hall effect measurements of the ZnO/template stacks was much less than that of
the uncoated templates. A strong E2 (high) mode at around 437 cmâ1 was visible
in the Raman spectra for most films confirming the formation of ZnO. However,
both the Raman modes and XRD reflections associated with wurtzite ZnO
diminished for the Al doped films indicating a high level of mainly oxygen
related defects. Based on these data, further studies are underway to improve
the doping efficiency of aluminium, the crystalline structure and thus the
conductivity of such films
Optimization of PECVD process for ultra thin tunnel SiOx film as passivation layer for silicon heterojunction solar cells
Ultra thin silicon oxide a SiOx H films have been grown by means of plasma enhanced chemical vapor deposition PECVD to replace the standard hydrogenated amorphous silicon a Si H passivation layer for silicon heterojunction solar cells to reduce parasitic absorption. Additionally, silicon oxide surfaces are well known as superior substrates for the nucleation enhancement for nanocrystalline silicon doped films. Symmetrical passivation samples were fabricated with variable a SiOx H layers with a thickness of 10 1.5 nm and characterized after several annealing steps 25 650 C . The best value reached so far on lt;100 gt; oriented Si wafers is implied open circuit voltage of 686 mV and minority carrier lifetime of 1.6 ms after annealing at 300 C. Such values were found to be reproducible even for ultra thin a SiOx H layers 1.5 n
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