16,757 research outputs found
An investigation of RAKE receiver operation in an urban environment for various spreading bandwidth allocations
Observations from the Korean War for Modern Military Medicine
This paper reviews developments in military medicine during the Korean War and places them in the evolution of military medical lessons from the Second World War and the subsequent development of military medicine through the Vietnam War to the present day. The analysis is structured according to the â10 Instruments of Military Healthcareâ. Whilst there were incremental developments in military medicine in all these areas, several innovations are specifically attributed to the Korean War. The introduction of helicopters to the battlefield led to the establishment of dedicated medical evacuation helicopters crewed with medical personnel and the evolution into the DUSTOFF system during the Vietnam War. Helicopter evacuation was the primary medical evacuation system in the wars in Iraq and Afghanistan. The establishment of the Mobile Army Surgical Hospital during the Korean War were founded upon the US Auxiliary Surgical Groups or the UK Casualty Clearing Stations of World War 2. The requirement for resuscitation and surgical teams close to the battlefield has endured through the development of mobile hospitals of varying sizes from Field Surgical Teams to the current âmodularâ Hospital Centre and other international equivalents. There were many innovations in the clinical care of battle casualties covering wound shock, surgical techniques, preventive medicine, and acute psychiatric care that refreshed or advanced knowledge from the Second World War. These were enabled through the establishment of medical research programs that were managed within the theatre of operations. Further advances in all these clinical topics can be observed through the Vietnam War to the wars in Iraq and Afghanistan â all of which were underpinned by institutional directed research programs. Finally, collaboration between international military medical services and the development of Korean military medical services is a major theme of this review. This âmilitary-to-militaryâ and âcivil-militaryâ medical engagement was also a major activity during the Vietnam War and more recently in Iraq and Afghanistan. Overall, the topics and themes in military medicine that were important during the Korean War can be considered to be part of trajectory of innovation in military medicine have been replicated in many subsequent wars. The paper also highlights some âlessonsâ from World War 2 that had to be relearned in the Korean War, and some observations from the Korean War that had to be relearned in subsequent wars
On Variants of CM-triviality
We introduce a generalization of CM-triviality relative to a fixed invariant
collection of partial types, in analogy to the Canonical Base Property defined
by Pillay, Ziegler and Chatzidakis which generalizes one-basedness. We show
that, under this condition, a stable field is internal to the family, and a
group of finite Lascar rank has a normal nilpotent subgroup such that the
quotient is almost internal to the family
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A cryptotephra record from the Lake Victoria sediment core record of holocene palaeoenvironmental change
The sediment record from Lake Victoria is an important archive of regional environmental and climatic conditions, reaching back more than 15,000 cal. years before present (15 ka BP). As the largest lake by area in East Africa, its evolution is key to understanding regional palaeohydrological change during the late Pleistocene and Holocene, including controls on the Nile River flow. As well as important palaeoenvironmental proxies, the lake contains a unique record of explosive volcanism from the central Kenyan Rift, in the form of fine-grained volcanic ash (tephra) layers, interpreted as airfall deposits. In the V95-1P core, collected from the central northern basin of the lake, tephra layers vary in concentration from 10s to 10s of 1000s of glass shards per gram of sediment. None of the tephra are visible to the naked eye, and have only been revealed through careful laboratory processing. Compositional analyses of tephra glass shards has allowed the tephra layers to be correlated to previously unrecognized eruptions of Eburru volcano around 1.2 and 3.8 ka, and Olkaria volcano, prior to 15 ka. These volcanoes lie ~300 km east of the core site in the Kenyan Rift. Our results highlight the potential for developing cryptotephra analysis as a key tool in East African palaeolimnological research. Tephra layers offer opportunities for precise correlation of palaeoenvironmental sequences, as well as windows into the eruption frequency of regional volcanoes and the dispersal of volcanic ash. Leverhulme Trust Early Career Fellowshi
Innovative learning at The University of Edinburgh
The activities available to civil engineering students during the University of Edinburgh's innovative learning week in 2012 were examined. The academic staff proposed a wide range of possible activities and student participation was optional. Popular activities were those with a âhands-onâ element: making or doing something. The practical activities offered included designing and building trebuchets, relaying railway permanent way on a heritage railway, practical workshops on engineering in international development and learning to juggle. These activities suggested that heuristic learning by trial and error was likely to enhance the visualisation skills that contribute to good engineering design. Further, the linking of achievement to purposeful practice rather than innate talent could inform teaching methods in the future. They also showed that in some cases safety culture messages were still not fully assimilated by students
TPC4: AN ECONOMIC EVALUATION OF AMLODIPINE FOR THE TREATMENT OF NONISCHEMIC DILATED CARDIOMYOPATHY: THE PROSPECTIVE RANDOMIZED AMLODIPINE SURVIVAL EVALUATION (PRAISE)
An Outpatient Hospital-based Exercise Training Program for Patients With Cirrhotic Liver Disease Awaiting Transplantation: A Feasibility Trial
Background: Time spent on the waiting list prior to liver transplantation (LT) provides an opportunity to optimise recipient fitness through prehabilitation; potentially reducing the physiological impact of major surgery. We assessed the feasibility and effectiveness of a six-week exercise programme in patients with cirrhotic liver disease awaiting LT. /
Methods: This single centre, prospective cohort, feasibility study, enrolled patients awaiting LT to a six week period of thrice weekly, supervised exercise on a static bike. Cardiopulmonary exercise testing (CPET) was used to objectively assess cardiopulmonary fitness at baseline and after six weeks of exercise. A follow-up CPET was performed at 12 weeks. CPET-derived measures were used to guide prescription of the training programme. A non-randomised control cohort of LT patients were selected to match the exercise group based on specific demographic data. Allocation to study arms was primarily based on the distance participants lived from the hospital where training occurred. Both groups received structured nutritional advice. /
Results: The exercise programme was feasible, with 9/16 (56%) patients completing the full programme of six weeks. Peak oxygen consumption (VO2peak) in the exercise group rose from a mean (SD) of 16.2 (± 3.4) ml/kg/min at baseline to 18.5 (±4.6) ml/kg/min at week 6 (p=0.02). In the control group VO2peak decreased from a mean (SD) of 19.0 (± 6.1) ml/kg/min to 17.1 (±6.0) at week 6 (p=0.03). /
Conclusion: We have demonstrated that it is feasible to engage patients awaiting LT in an intensive aerobic exercise programme with a signal of improvement in fitness being detected
Theoretical Uncertainties in Electroweak Boson Production Cross Sections at 7, 10, and 14 TeV at the LHC
We present an updated study of the systematic errors in the measurements of
the electroweak boson cross-sections at the LHC for various experimental cuts
for a center of mass energy of 7, 10 and 14 TeV. The size of both electroweak
and NNLO QCD contributions are estimated, together with the systematic error
from the parton distributions. The effects of new versions of the MSTW, CTEQ,
and NNPDF PDFs are considered.Comment: PDFLatex with JHEP3.cls. 22 pages, 43 figures. Version 2 adds the
CT10W PDF set to analysis and updates the final systematic error table and
conclusions, plus several citations and minor wording changes. Version 3 adds
some references on electroweak and mixed QED/QCD corrections. Version 4 adds
more references and acknowledgement
Responsibility modelling for civil emergency planning
This paper presents a new approach to analysing and understanding civil emergency planning based on the notion of responsibility modelling combined with HAZOPS-style analysis of information requirements. Our goal is to represent complex contingency plans so that they can be more readily understood, so that inconsistencies can be highlighted and vulnerabilities discovered. In this paper, we outline the framework for contingency planning in the United Kingdom and introduce the notion of responsibility models as a means of representing the key features of contingency plans. Using a case study of a flooding emergency, we illustrate our approach to responsibility modelling and suggest how it adds value to current textual contingency plans
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