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Emergency medical services use and its association with acute ischaemic stroke evaluation and treatment in Singapore

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Stroke & Vascular Neurology 2020年第2期5卷 121-127页

作者： Hanzhang Xu Ying Xian Fung Peng Woon Janet Prvu Bettger Daniel T Laskowitz Yih Yng Ng Marcus Eng Hock Ong david bruce matchar Deidre Anne De Silva Department of Family Medicine and Community Health Duke University School of MedicineDurhamNorth CarolinaUnited States Duke University School of Nursing DurhamNorth CarolinaUnited States Duke Clinical Research Institute DurhamNorth CarolinaUnited States Department of Neurology Duke University School of MedicineDurhamNorth CarolinaUnited States Department of Neurology National Neuroscience Institute-Singapore General Hospital CampusSingapore Department of Orthopaedic Surgery Duke University School of MedicineDurhamNorth CarolinaUnited States HomeTeam Government of Singapore Ministry of Home AffairsSingapore Department of Emergency Medicine Singapore General HospitalSingapore Program in Health Services and Systems Research Duke-NUS Graduate Medical SchoolSingapore Department of Medicine(General Internal Medicine) Duke University School of MedicineDurhamNorth CarolinaUnited States

Background Emergency medical services(EMS)is a critical link in the chain of stroke *** aimed to assess EMS use for stroke in Singapore,identify characteristics associated with EMS use and the association of EMS use with stroke evaluation and *** The Singapore Stroke Registry combines nationwide EMS and public hospital data for stroke cases in *** regressions with the generalised estimating equations were performed to examine the association between EMS use and timely stroke evaluation and *** Of 3555 acute ischaemic patients with symptom onset within 24 hours admitted to all five public hospitals between 2015 and 2016,68%arrived via *** who used EMS were older,were less likely to be female,had higher stroke severity by National Institute of Health Stroke Scale and had a higher prevalence of atrial fibrillation or peripheral arterial *** transported by EMS were more likely to receive rapid evaluation(door-to imaging time≤25 min 34.3%vs 11.1%,OR=2.74(95%CI 1.40 to 5.38))and were more likely to receive intravenous tissue plasminogen activator(tPA,22.8%vs 4.6%,OR=4.61(95%CI 3.52 to 6.03)).Among patients treated with tPA,patients who arrived via EMS were more likely to receive timely treatment than self-transported patients(door-to needle time≤60 min 52.6%vs 29.4%,OR=2.58(95%CI 1.35 to 4.92)).Conclusions EMS use is associated with timely stroke evaluation and treatment in *** EMS-Hospital stroke pathways and targeted public campaigns to advocate for appropriate EMS use have the potential to improve acute stroke care.

关键词： needle treatment likely

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Impacts of bovine spongiform encephalopathy and avian influenza on U.S. meat demand

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Journal of Integrative Agriculture 2015年第6期14卷 1130-1141页

作者： Jianhong E Mu bruce A McCarl Amy Hagerman david Bessler Department of Applied Economics Oregon State University Department of Agricultural Economics Texas A&M University Center for Epidemiology and Animal Health Veterinary Services Animal and Plant Health Inspection Service United States Department of Agriculture

This paper examines the U.S. meat demand impacts of the announced outbreaks of bovine spongiform encephalopathy（BSE） and avian influenza（AI）. Findings indicate that beef and chicken demand was negatively affected by BSE and AI disease outbreaks. Specifically, in the short run, U.S. consumers shift demand due to both outbreaks but more so due to domestic disease outbreaks than for outbreaks occurring overseas-the impact of U.S. AI outbreaks is about 0.5% for beef and the impact of U.S. BSE cases is around –0.42% for beef and 0.4% for pork, respectively. Regarding the BSE shock on meat demand, there is a high rate of beef demand adjusted from disturbance to the long-run equilibrium and a lower adjustment rate for chicken demand because of the repeated outbreaks of AI worldwide. In the long run, information related to severe, persistently recurring overseas animal disease outbreaks changes U.S. consumers＇ meat consumption patterns. Although effects of animal diseases on U.S. meat demand were statistically significant, the magnitudes were small-the impact of WHO reported human death numbers for AI is 0.005% for beef, –0.002% for pork, and –0.006% for chicken and the impact of U.S. BSE cases is 1.1% for pork and –0.7% for chicken.

关键词： spongiform avian chicken bovine encephalopathy overseas disturbance adjustment pathogenic deaths

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Assessment of VIIRS 375 m active fire using tropical peatland combustion algorithm applied to Landsat-8 over Indonesia’s peatlands

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International Journal of Digital Earth 2020年第12期13卷 1695-1716页

作者： Parwati Sofan david bruce Wilfrid Schroeder Eriita Jones Jackie Marsden Scarce Resources and Circular Economy(ScaRCE) University of South AustraliaScienceTechnologyEngineering and Mathematics(STEM)Adelaide/Mawson LakesAustralia Remote Sensing Application Center of Indonesian Institute of Aeronautics and Space(LAPAN) JakartaIndonesia National Oceanic and Atmospheric Administration(NOAA) College ParkMDUSA dImagery LandgateMidlandAustralia

VIIRS 375 m active fire data(VNP14IMG),the highest spatial resolution available cost-free fire product,were assessed for representing fire in typical degraded tropical peatlands in *** results of applying the Tropical Peatland Combustion Algorithm to Landsat-8(ToPeCAl-L8)daytime imagery were utilised as the fire *** permit the comparison of non-simultaneous VNP14IMG and ToPeCAl-L8,peatland fire propagation speeds resulting from previous study using TET-1 data in Central Kalimantan’s peatlands were *** peatland fires were still within 750 m from their source over 15 h under uniform conditions,except for very large *** detection rates of nighttime VNP14IMG compared with ToPeCAl-L8 showed about 80%agreement for small fire areas(<14 ha).For fires larger than 14 ha,a dissolved 375 m buffer(cluster buffer)of VNP14IMG active fires with an integration of nighttime and daytime acquisitions,produced a probability of detection up to 90%.These results generated a recommendation for implementing cluster buffer analysis and integration of nighttime and daytime analysis of VNP14IMG data for better accuracy in fire detection for ground fire *** also demonstrate the utility of the ToPeCAl-L8 algorithm with VIIRS 375 m active fire data.

关键词： Active fire assessment VIIRS 375 m active fire(VNP14IMG) ToPeCAlLandsat-8 peatland fires

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Investigation of role of cartilage surface polymer brush border in lubrication of biological joints

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Friction 2022年第1期10卷 110-127页

作者： JinJing LIAO david W.SMITH Saeed MIRAMINI bruce S.GARDINER Lihai ZHANG Department of Infrastructure Engineering.The University of Melbourne.Victoria 3010 Australia Faculty of Engineering and Mathematical Sciences The University of Western AustraliaWA 6009Australia College of Science Health.Engineering and Education.Murdoch UniversityWA 6150Australia

Although experimental evidence has suggested that the polymer brush border(PBB)on the cartilage surface is important in regulating fluid permeability in the contact gap,the current theoretical understanding of joint lubrication is still *** address this research gap,a multiscale cartilage contact model that includes PBB,in particular its effect on the fluid permeability of the contact gap,is developed in this *** modeling is employed to estimate the permeability of the contact *** permeability is classified into two categories:For a gap size>1μm,the flow resistance is assumed to be dominated by the cartilage roughness;for gap size<1μm,flow resistance is assumed to be dominated by the surface polymers extending beyond the collagen network of the articular *** gap sizes of less than 1μm,the gap permeability decreases exponentially with increasing aggrecan concentration,whereas the aggrecan concentration varies inversely with the gap ***,the gap permeability is employed in a macroscale cartilage contact model,in which both the contact gap space and articular cartilage are modeled as two interacting poroelastic *** fluid exchange between these two media is achieved by imposing pressure and normal flux continuity boundary *** model results suggest that PBB can substantially enhance cartilage lubrication by increasing the gap fluid load support(e.g.,by 26 times after a 20-min indentation compared with the test model without a PBB).Additionally,the fluid flow resistance of PBB sustains the cartilage interstitial fluid pressure for a relatively long period,and hence reduces the vertical deformation of the ***,it can be inferred that a reduction in the PBB thickness impairs cartilage lubrication ability.

关键词： assumed polymer hence

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HUNZINGER CONSTRUCTION UNIVERSITY A PLATINUM SHOWCASE FOR EDUCATION

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Journal of Green Building 2008年第3期3卷 15-22页

作者： david Dell’Agnese Phil Vetterkind Frank Falsetti Jennifer Guslick david Hubka bruce Howard Hunzinger Construction Total Mechanical Lemberg Electric Company

INTRODUCTION Hunzinger Construction University(HCU)was founded in 2000 to provide quality continuing education and field training for Hunzinger Construction employees and outside *** August 2008,Hunzinger Construction... 详细信息

关键词： outside education Builder

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Mapping groundwater dependent ecosystem potential in a semi-arid environment using aremote sensing-based multiple-lines-of-evidence approach

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International Journal of Digital Earth 2023年第1期16卷 375-406页

作者： Stephen G.Fildes Tanya M.Doody david bruce Ian F.Clark Okke Batelaan UniSA STEM University of South AustraliaAdelaideAustralia CSIRO Land and WaterAdelaideAustralia National Centre for Groundwater Research and Training(NCGRT) College of Science and EngineeringFlinders UniversityBedford ParkAustralia

Groundwater dependent ecosystems(GDEs)are vulnerable to groundwater regime ***,their protection is often hampered by challenges in their *** is presented a remote sensing-based GDE potential mapping approach based on the persistency of relevant vegetation parameters during prolonged dry periods as an indicator of potential‘consistency’of water supply(***).The study uses a novel approach to characterising persistency for selected vegetation parameters based on a normalised difference measure and an adaptation of the coefficient of variation *** of parameters was facilitated through the analytic hierarchy process providing a structured weighting approach to minimise parameter *** approach is demonstrated in the semi-arid Flinders Ranges of South Australia where new groundwater resources are being sought to support local domestic and industry *** in GDE potential were mapped to better target areas where exploration of groundwater should be *** results indicated a high-level of agreement of 77%with an independent springs dataset,along with an 87%agreement with areas coinciding with known phreatophyte species and depths to *** index-based mapping approach has potential applicability across landscapes,as it normalises for variations in vegetation cover,minimises technical overheads,and employs continental-wide remote sensing data-products.

关键词： coefficient of variation NDVI coefficient of variation fractional cover barest Earth wetness percentiles actual evapotranspiration analytic hierarchy process groundwater potential

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Assessment of groundwater quantity, quality, and associated health risk of the Tano river basin, Ghana

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Acta Geochimica 2024年第2期43卷 325-353页

作者： Adwoba Kua-Manza Edjah bruce Banoeng-Yakubo Anthony Ewusi Enoch Sakyi-Yeboah david Saka Clara Turetta Giulio Cozzi david Atta-Peters Larry Pax Chegbeleh Water Resources Research Centre Ghana Atomic Energy CommissionAccraGhana Earth Science Department University of GhanaLegonAccraGhana Geological Engineering Department University of Mines and TechnologyTarkwaGhana Department of Statistics University of GhanaAccraLegonGhana Institute of Polar Sciences National Research Council of ItalyVeniceItaly

In the Tano River Basin,groundwater serves as a crucial resource;however,its quantity and quality with regard to trace elements and microbiological loadings remain poorly understood due to the lack of groundwater logs and limited water *** study presents a comprehensive analysis of the Tano River Basin,focusing on three key ***,it investigated the aquifer hydraulic parameters and the results showed signiﬁcant spatial variations in borehole depths,yields,transmissivity,hydraulic conductivity,and speciﬁc *** boreholes were concentrated in the northeastern and southeastern zones,while geological formations,particu-larly the Apollonian Formation,exhibit a strong inﬂuence on borehole *** study identiﬁed areas with high transmissivity and hydraulic conductivity in the southern and eastern regions,suggesting good groundwater avail-ability and suitability for sustainable water ***-ondly,the research investigated the groundwater quality and observed that the majority of borehole samples fall within WHO(Guidelines for Drinking-water Quality,Environmental Health Criteria,Geneva,2011,***://***)***,some samples have pH levels below the standards,although the groundwater generally qualiﬁes as *** study further explores hydrochemical facies and health risk assessment,highlighting the dominance of Ca–HCO3 water *** element analysis reveals minimal health risks from most elements,with chromium(Cr)as the primary contributor to chronic health ***,this study has provided a key insights into the Tano River Basin’s hydrogeology and associated health *** outcome of this research has contributed to the broader understanding of hydrogeologi-cal dynamics and the importance of managing groundwater resources sustainably in complex geological environments.

关键词： Groundwater Unsupervised machine learning technique Hydrochemistry Aquifer hydraulic parameter Health risk

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Using on-site liver 3-D reconstruction and volumetric calculations in split liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2016年第6期15卷 587-592页

作者： Trevor W Reichman Brittany Fiorello Ian Carmody Humberto Bohorquez Ari Cohen John Seal david bruce George E Loss Ochsner Multi-Organ Transplant Institute Ochsner Medical Center

BACKGROUND： Split liver transplantation increases the number of grafts available for transplantation. Pre-recovery assessment of liver graft volume is essential for selecting suitable recipients. The purpose of this study was to determine the ability and feasibility of constructing a 3-D model to aid in surgical planning and to predict graft weight prior to an in situ division of the donor liver. METHODS： Over 11 months, 3-D volumetric reconstruction of 4 deceased donors was performed using Pathfinder Scout liver volumetric software. Demographic, laboratory, operative, perioperative and survival data for these patients along with donor demographic data were collected prospectively and analyzed retrospectively. RESULTS： The average predicted weight of the grafts from the adult donors obtained from an in situ split procedure were 1130 g （930-1458 g） for the extended right lobe donors and 312 g （222-396 g） for left lateral segment grafts. Actual adult graft weight was 92% of the predicted weight for both the extended right grafts and the left lateral segment grafts. The predicted and actual graft weights for the pediatric donors were 176 g and 210 g for the left lateral segment grafts and 308 g and 280 g for the extended right lobe grafts,respectively. All grafts were transplanted except for the right lobe from the pediatric donors due to the small graft ***： On-site volumetric assessment of donors provides useful information for the planning of an in situ split and for selection of recipients. This information may expand the donor pool to recipients previously felt to be unsuitable due to donor and/or recipient weight.

关键词： split liver transplantation reduced-size liver transplantation 3-D reconstruction

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Compressively sampling the optical transmission matrix of a multimode fibre

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Light(Science & Applications) 2021年第5期10卷 916-930页

作者： Shuhui Li Charles Saunders Daniel J.Lum John Murray-bruce Vivek K Goyal TomášČižmár david B.Phillips School of Physics and Astronomy University of ExeterExeterEX44QLUK Wuhan National Laboratory for Optoelectronics School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan430074HubeiChina Department of Electrical and Computer Engineering Boston UniversityBostonMA02215USA Department of Physics and Astronomy University of Rochester500 Wilson BlvdRochesterNY14618USA Department of Computer Science and Engineering University of South FloridaTampaFL33620USA Leibniz Institute of Photonic Technology Albert-Einstein-Straße 907745JenaGermany Institute of Scientific Instruments of CAS Královopolská14761264BrnoCzech Republic

The measurement of the optical transmission matrix(TM)of an opaque material is an advanced form of space-variant aberration *** imaging,TM-based methods are emerging in a range of fields,including optical communications,micro-manipulation,and *** many cases,the TM is very sensitive to perturbations in the configuration of the scattering medium it ***,applications often require an up-to-the-minute characterisation of the fragile TM,typically entailing hundreds to thousands of probe ***,we explore how these measurement requirements can be relaxed using the framework of compressive sensing,in which the incorporation of prior information enables accurate estimation from fewer measurements than the dimensionality of the TM we aim to *** of such priors include knowledge of a memory effect linking the input and output fields,an approximate model of the optical system,or a recent but degraded TM *** demonstrate this concept by reconstructing the full-size TM of a multimode fibre supporting 754 modes at compression ratios down to∼5%with good *** show that in this case,imaging is still possible using TMs reconstructed at compression ratios down to∼1%(eight probe measurements).This compressive TM sampling strategy is quite general and may be applied to a variety of other scattering samples,including diffusers,thin layers of tissue,fibre optics of any refractive profile,and reflections from opaque *** approaches offer a route towards the measurement of high-dimensional TMs either quickly or with access to limited numbers of measurements.

关键词： scattering fibre matrix

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Links between donor macrosteatosis,interleukin-33 and complement after liver transplantation

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World Journal of Transplantation 2020年第5期10卷 117-128页

作者： Kelley Núñez Mohammad Hamed Daniel Fort david bruce Paul Thevenot Ari Cohen Institute of Translational Research Ochsner Clinic FoundationNew OrleansLA 70121United States Center for Outcomes and Health Services Research Research AdministrationOchsner Clinic FoundationNew OrleansLA 70121United States Multi-Organ Transplant Program Ochsner Clinic FoundationNew OrleansLA 70121United States

BACKGROUND As prevalence of nonalcoholic fatty liver disease increases in the population,livers with steatosis will continue to infiltrate the donor *** utilization of these extended criteria grafts is paramount given the increased risk associated with their use in *** factors that can predict liver dysfunction immediately after transplantation with macrosteatotic grafts are *** To understand the relationship between interleukin-33(IL-33)and complement in recipients immediately following liver reperfusion as a marker of liver *** Cohort consisted of patients who received a liver transplant from September 2016–September 2019 at our *** variables were retrospectively extracted from the electronic medical ***-table donor biopsies were obtained with donor steatosis percentage retrospectively determined by a boardcertified *** samples were available immediately following liver *** of plasma IL-33 and complement proteins,C3a and C5a,were determined by enzyme-linked immunosorbent *** mRNA expression,RNA was extracted from donor biopsies and used against a 780 gene *** Cohort consisted of 99 donor and *** median age was 45 years and 55%*** had a median age of 59 years with 62%*** main etiologies were alcoholic hepatitis,nonalcoholic steatohepatitis,and hepatocellular *** MELD-Na at transplant was *** were grouped based on moderate macrosteatosis(≥30%).Recipients implanted with moderate macrosteatotic grafts had significantly higher peak alanine aminotransferase/aspartate aminotransferase(P<0.001 and P<0.004),and increased incidence of early allograft dysfunction(60%compared to 18%).Circulating IL-33 levels were significantly elevated in recipients of≥30%macrosteatotic grafts(P<0.05).Recipients with detectable levels of circulating IL-33 immediately following reperfusion had significantly highe

关键词： Liver transplantation Interleukin-33 Donor macrosteatosis Complement Early allograft dysfunction Reperfusion

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