43,844 research outputs found

    Realist evaluation of the impact of paediatric nurse practitioner clinics, specialist paediatric nurses, and a children’s community nursing team in deflecting attendance at emergency departments and urgent care centres by children with long-term conditions

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    In 2018, the Greater Manchester Children’s Health and Wellbeing Board developed a 10-point strategy to achieve its objectives, the sixth of which was to reduce unnecessary hospital attendances and admissions for children with long term conditions such as asthma, diabetes and epilepsy. Funding was secured from Manchester Academic Health Science Centre to commission an exploration of the impact of the Paediatric Nurse Practitioner Clinic within the context of the Family Services Model and the impact that the service was having on reducing attendance at urgent care centres or admission to hospital. Alternatives to taking children to the ED/UCC can be a preference. An integrated system, with elements able to book directly into others, with rapid access, information, health promotion, and follow-up were essential to success. Extra consultation time for proactive intervention, with sufficient nurses to provide a seven-days service were valued. Advertisement of the service to the public and to professionals is vital for uptake by professionals and the public

    Study of sample drilling techniques for Mars sample return missions

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    To demonstrate the feasibility of acquiring various surface samples for a Mars sample return mission the following tasks were performed: (1) design of a Mars rover-mounted drill system capable of acquiring crystalline rock cores; prediction of performance, mass, and power requirements for various size systems, and the generation of engineering drawings; (2) performance of simulated permafrost coring tests using a residual Apollo lunar surface drill, (3) design of a rock breaker system which can be used to produce small samples of rock chips from rocks which are too large to return to Earth, but too small to be cored with the Rover-mounted drill; (4)design of sample containers for the selected regolith cores, rock cores, and small particulate or rock samples; and (5) design of sample handling and transfer techniques which will be required through all phase of sample acquisition, processing, and stowage on-board the Earth return vehicle. A preliminary design of a light-weight Rover-mounted sampling scoop was also developed

    Orbital transfer vehicle concept definition and system analysis study, 1985. Volume 2: OTV concept definition and evaluation. Book 4: Operations

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    The benefits of the reusable Space Shuttle and the advent of the new Space Station hold promise for increasingly effective utilization of space by the scientific and commercial as well as military communities. A high energy reusable oribital transfer vehicle (OTV) represents an additional capability which also exhibits potential for enhancing space access by allowing more ambitious missions and at the same time reducing launch costs when compared to existing upper stages. This section, Vol. 2: Book 4, covers launch operations and flight operations. The launch operations section covers analyses of ground based and space based vehicles, launch site facilities, logistics requirements, propellant loading, space based maintenance and aft cargo carrier access options. The flight operations sections contain summary descriptions of ground based and space based OTV missions, operations and support requirements, and a discussion of fleet implications

    Oral History Interview: C. T. Mitchell

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    This interview is one of a series conducted concerning the Marshall University Society of Yeager Scholars. At the time of the interview, C. T. Mitchell was the Director of University Relations at Marshall University. He discusses: his education (graduating from high school early and attending Marshall as a journalism major); his journalism career; coming to work at Marshall; his job duties at Marshall; individuals such as Chuck Yeager, Joe Hunnicutt, Dale Nitzschke, David Gillmore, Boz Johnson, Greg King, Beverly McCoy, Vic Hamilton, John Brown; the development of the Yeager scholarship program and also promoting the program; as well as other topics.https://mds.marshall.edu/oral_history/1336/thumbnail.jp

    Optimization of controlled environments for hydroponic production of leaf lettuce for human life support in CELSS

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    A research project in the food production group of the Closed Ecological Life Support System (CELSS) program sought to define optimum conditions for photosynthetic productivity of a higher plant food crop. The effects of radiation and various atmospheric compositions were studied

    Shock temperatures in anorthite glass

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    Temperatures of CaAl2Si2O8 (anorthite glass) shocked to pressures between 48 and 117 GPa were measured in the range from 2500 to 5600 K, using optical pyrometry techniques. The pressure dependence of the shock temperatures deviates significantly from predictions based on a single high pressure phase. At least three phase transitions, at pressures of about 55, 85, and 100 GPa and with transition energies of about 0.5 MJ/kg each (approximately 1.5 MJ/kg total) are required to explain the shock temperature data. The phase transition at 100 GPa can possibly be identified with the stishovite melting transition. Theoretical models of the time dependence of the thermal radiation from the shocked anorthite based on the geometry of the experiment and the absorptive properties of the shocked material yields good agreement with observations, indicating that it is not necessary to invoke intrinsic time dependences to explain the data in many cases
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