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UCL University College London Eprints (332,321 recursos)
UCL Eprints collects the work of UCL researchers and makes it freely available over the web, helping the worldwide scholarly community to discover UCL research. Institutional repositories like UCL Eprints complement the traditional academic publishing and scholarly communications processes. They raise the visibility of research and help to maximise its impact. UCL researchers are encouraged to deposit a copy of each journal article, conference paper, working paper, and any other research output, in the UCL Eprints at the earliest opportunity, ensuring that their research reaches as wide an audience as possible.

Mostrando recursos 181 - 200 de 331,692

181. Measurement of Z boson Production in Pb+Pb Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector - Collaboration, ATLAS
The ATLAS experiment has observed 1995 Z boson candidates in data corresponding to 0.15 inverse nb of integrated luminosity obtained in the 2011 LHC Pb+Pb run at sqrt(s_NN)=2.76 TeV. The Z bosons are reconstructed via di-electron and di-muon decay channels, with a background contamination of less than 3%. Results from the two channels are consistent and are combined. Within the statistical and systematic uncertainties, the per-event Z boson yield is proportional to the number of binary collisions estimated by the Glauber model. The elliptic anisotropy of the azimuthal distribution of the Z boson with respect to the event plane is...

182. Measurements of Wgamma and Zgamma production in pp collisions at sqrt{s}= 7 TeV with the ATLAS detector at the LHC - Collaboration, TATLAS
The integrated and differential fiducial cross sections for the production of a W or Z boson in association with a high-energy photon are measured using pp collisions at sqrt{s} = 7 TeV. The analyses use a data sample with an integrated luminosity of 4.6 fb^{-1} collected by the ATLAS detector during the 2011 LHC data-taking period. Events are selected using leptonic decays of the W and Z bosons (W(e nu,mu nu) and Z(e+ e-, mu+ mu-, nu nubar)) with the requirement of an associated isolated photon. The data are used to test the electroweak sector of the Standard Model and...

183. Search for Supersymmetry in Events with Large Missing Transverse Momentum, Jets, and at Least One Tau Lepton in 7 TeV Proton-Proton Collision Data with the ATLAS Detector - Collaboration, TATLAS
A search for supersymmetry (SUSY) in events with large missing transverse momentum, jets, and at least one hadronically decaying tau lepton, with zero or one additional light lepton (e/mu), has been performed using 4.7 fb-1 of proton-proton collision data at sqrt(s) = 7 TeV recorded with the ATLAS detector at the Large Hadron Collider. No excess above the Standard Model background expectation is observed and a 95% confidence level visible cross-section upper limit for new phenomena is set. In the framework of gauge-mediated SUSY-breaking models, lower limits on the mass scale Lambda are set at 54 TeV in the regions...

184. Jeddah Historical Building Information Modelling "JHBIM" – Object Library - Baik, A; Alitany, A; Boehm, J; Robson, S
The theory of using Building Information Modelling "BIM" has been used in several Heritage places in the worldwide, in the case of conserving, documenting, managing, and creating full engineering drawings and information. However, one of the most serious issues that facing many experts in order to use the Historical Building Information Modelling "HBIM", is creating the complicated architectural elements of these Historical buildings. In fact, many of these outstanding architectural elements have been designed and created in the site to fit the exact location. Similarly, this issue has been faced the experts in Old Jeddah in order to use the...

185. University–Industry Knowledge Exchange: An Exploratory Study of Open Innovation in UK Universities - Striukova, L

186. What makes patent pools successful: an analysis of optical video and mobile phone markets - Striukova, L; Rayna, T

187. Pricing music in the digital age: Mutually advantageous price discrimination in practice - Striukova, L; Rayna, T; Darlington, J

188. Search for new phenomena in the dijet mass distribution using $pp$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector - Collaboration, ATLAS
Dijet events produced in LHC proton--proton collisions at a center-of-mass energy $\sqrt{s}=8$ TeV are studied with the ATLAS detector using the full 2012 data set, with an integrated luminosity of 20.3 fb$^{-1}$. Dijet masses up to about 4.5 TeV are probed. No resonance-like features are observed in the dijet mass spectrum. Limits on the cross section times acceptance are set at the 95% credibility level for various hypotheses of new phenomena in terms of mass or energy scale, as appropriate. This analysis excludes excited quarks with a mass below 4.09 TeV, color-octet scalars with a mass below 2.72 TeV, heavy...

189. The measurement and importance of non-motor symptoms in Parkinson disease. - Schapira, AH

190. Increased thrombin generation potential in symptomatic versus asymptomatic moderate or severe carotid stenosis and relationship with cerebral microemboli. - Kinsella, JA; Tobin, WO; Kavanagh, GF; O'Donnell, JS; McGrath, RT; Tierney, S; Feeley, TM; Egan, B; O'Neill, D; Collins, DR; Coughlan, T; Harbison, JA; Doherty, CP; Madhavan, P; Moore, DJ; O'Neill, SM; Colgan, MP; Saqqur, M; Murphy, RP; Moran, N; Hamilton, G; McCabe, DJ
The importance of thrombin generation in the pathogenesis of TIA or stroke and its relationship with cerebral microembolic signals (MES) in asymptomatic and symptomatic carotid stenosis has not been comprehensively assessed.

191. Why can’t I learn to predict my emotions? - Sanchez, JL

192. Life Course Approach in Social Epidemiology: An Overview, Application and Future Implications. - Cable, N
The application of the life course approach to social epidemiology has helped epidemiologists theoretically examine social gradients in population health. Longitudinal data with rich contextual information collected repeatedly and advanced statistical approaches have made this challenging task easier. This review paper provides an overview of the life course approach in epidemiology, its research application, and future challenges. In summary, a systematic approach to methods, including theoretically guided measurement of socioeconomic position, would assist researchers in gathering evidence for reducing social gradients in health, and collaboration across individual disciplines will make this task achievable.

193. Three-dimensional imaging of hold baggage for airport security - Kolokytha, S; Speller, R; robson, S
This study describes a cost-effective check-in baggage screening system, based on "on-belt tomosynthesis" (ObT) and close-range photogrammetry, that is designed to address the limitations of the most common system used, conventional projection radiography. The latter's limitations can lead to loss of information and an increase in baggage handling time, as baggage is manually searched or screened with more advanced systems. This project proposes a system that overcomes such limitations creating a cost-effective automated pseudo-3D imaging system, by combining x-ray and optical imaging to form digital tomograms. Tomographic reconstruction requires a knowledge of the change in geometry between multiple x-ray views...

194. The genetic architecture of the familial hyperlipidaemia syndromes: rare mutations and common variants in multiple genes. - Talmud, PJ; Futema, M; Humphries, SE
Genome-Wide Association Studies have provided robust identification of approximately 100 genetic loci determining plasma lipid parameters. Using these multiple common genetic lipid-determining variants in a 'gene score' has thrown new light on the mode of inheritance of familial lipid disorders.

195. Proposal: Different types of alteration and loss of consciousness in epilepsy. - Lüders, H; Amina, S; Bailey, C; Baumgartner, C; Benbadis, S; Bermeo, A; Carreño, M; Devereaux, M; Diehl, B; Eccher, M; Edwards, J; Fastenau, P; Fernandez Baca-Vaca, G; Godoy, J; Hamer, H; Hong, SB; Ikeda, A; Kahane, P; Kaiboriboon, K; Kalamangalam, G; Lardizabal, D; Lhatoo, S; Lüders, J; Mani, J; Mayor, C; Mesa Latorre, T; Miller, J; Morris, HH; Noachtar, S; O'Donovan, C; Park, J; Perez-Jimenez, MA; Rona, S; Rosenow, F; Shahid, A; Schuele, S; Skidmore, C; Steinhoff, B; Szabó, CA; Sweet, J; Tandon, N; Tanner, A; Tsuji, S
There are at least five types of alterations of consciousness that occur during epileptic seizures: auras with illusions or hallucinations, dyscognitive seizures, epileptic delirium, dialeptic seizures, and epileptic coma. Each of these types of alterations of consciousness has a specific semiology and a distinct pathophysiologic mechanism. In this proposal we emphasize the need to clearly define each of these alterations/loss of consciousness and to apply this terminology in semiologic descriptions and classifications of epileptic seizures. The proposal is a consensus opinion of experienced epileptologists, and it is hoped that it will lead to systematic studies that will allow a scientific...

196. Transition of care for adolescents with disorders of sex development - Crouch, NS; Creighton, SM
Disorders of sex development (DSDs) continue to present many challenges. A clear consensus among clinicians has emerged in paediatric care; however, the same cannot be said of adult care services. Moreover, transition to adult care is a process that takes many years. Although evidence-based models of transitional care do exist in other medical specialities, few studies have been conducted in adolescents with DSDs, and a clear and pressing need exists for further research to guide the care of these patients. A general move towards independence and self-responsibility is common to all transition programmes, but specific issues for those with a...

197. From exercise intolerance to functional improvement: the second wind phenomenon in the identification of McArdle disease. - Scalco, RS; Chatfield, S; Godfrey, R; Pattni, J; Ellerton, C; Beggs, A; Brady, S; Wakelin, A; Holton, JL; Quinlivan, R
McArdle disease is the most common of the glycogen storage diseases. Onset of symptoms is usually in childhood with muscle pain and restricted exercise capacity. Signs and symptoms are often ignored in children or put down to 'growing pains' and thus diagnosis is often delayed. Misdiagnosis is not uncommon because several other conditions such as muscular dystrophy and muscle channelopathies can manifest with similar symptoms. A simple exercise test performed in the clinic can however help to identify patients by revealing the second wind phenomenon which is pathognomonic of the condition. Here a patient is reported illustrating the value of...

198. Traffic-related Air Pollution in Relation to Cognitive Function in Older Adults. - Tonne, C; Elbaz, A; Beevers, S; Singh-Manoux, A
Few epidemiologic studies have investigated associations of air pollution with cognition in older adults, and none has specifically compared associations across particle sources. We investigated whether exposure to particulate air pollution, characterized by size and source, was associated with cognitive function and decline in cognitive function.

199. Quercetin inhibits intestinal iron absorption and ferroportin transporter expression in vivo and in vitro. - Lesjak, M; Hoque, R; Balesaria, S; Skinner, V; Debnam, ES; Srai, SK; Sharp, PA
Balancing systemic iron levels within narrow limits is critical for maintaining human health. There are no known pathways to eliminate excess iron from the body and therefore iron homeostasis is maintained by modifying dietary absorption so that it matches daily obligatory losses. Several dietary factors can modify iron absorption. Polyphenols are plentiful in human diet and many compounds, including quercetin - the most abundant dietary polyphenol - are potent iron chelators. The aim of this study was to investigate the acute and longer-term effects of quercetin on intestinal iron metabolism. Acute exposure of rat duodenal mucosa to quercetin increased apical...

200. Non-Exercise Physical Activity and Survival: English Longitudinal Study of Ageing. - Hamer, M; de Oliveira, C; Demakakos, P
The activity patterns of older adults include more light/mild-intensity or "non-exercise" activity and less moderate- to vigorous-intensity activity. The health benefits of this type of activity pattern remain unclear.


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