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An enhanced functional ability questionnaire(faVIQ) to measure the impact of rehabilitation services on the visually impaired

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International Journal of Ophthalmology(English edition) 2014年第1期7卷 77-85页

作者： james stuart wolffsohn Jonathan Jackson Olivia Anne Hunt Charles Cottriall Jennifer Lindsay Richard Gilmour Anne Sinclair Robert Harper Aston University Life and Health SciencesOphthalmic Research Group Australian College of Optometry Royal Victoria Hospital Oxford Eye Hospital Royal Victoria Hospital Belfast Altnagelvin Area Hospital Low Vision Clinic Fife Low Vision Centre for the Blind Manchester Royal Eye Hospital and Manchester Academic and Health Science Centre Central Manchester University Hospitals NHS Foundation Trust

AIM: To develop a short,enhanced functional ability Quality of Vision(faVIQ) instrument based on previous questionnaires employing comprehensive modern statistical techniques to ensure the use of an appropriate response scale,items and scoring of the visual related difficulties experienced by patients with visual impairment. · METHODS: Items in current quality-of-life questionnaires for the visually impaired were refined by a multi-professional group and visually impaired focus groups. The resulting 76 items were completed by 293 visually impaired patients with stable vision on two occasions separated by a month. The faVIQ scores of 75 patients with no ocular pathology were compared to 75 age and gender matched patients with visual impairment. ·RESULTS: Rasch analysis reduced the faVIQ items to 27. Correlation to standard visual metrics was moderate(r =0.32-0.46) and to the NEI-VFQ was 0.48. The faVIQ was able to clearly discriminate between age and gender matched populations with no ocular pathology and visual impairment with an index of 0.983 and 95% sensitivity and 95% specificity using a cut off of 29.·CONCLUSION: The faVIQ allows sensitive assessment of quality-of-life in the visually impaired and should support studies which evaluate the effectiveness of low vision rehabilitation services.

关键词： quality of life visual impairment low vision functional ability sensitivity specificity

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SmallSat swarm gravimetry:Revealing the interior structure of asteroids and comets

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Astrodynamics 2021年第3期5卷 217-236页

作者： William Gordon Ledbetter Rohan Sood james Keane Jeffrey stuart Astrodynamics and Space Research Laboratory The University of AlabamaTuscaloosaAL 35487USA Jet Propulsion Laboratory California Institute of TechnologyPasadenaCA 91109USA

A growing interest in small body exploration has motivated research into the rapid char-acterization of near-Earth objects to meet economic or scientific ***,knowledge of the internal density structure can aid with target selection and enables an understanding of prehistoric planetary formation to be *** this end,multi-layer extensions to the polyhedral gravity model are suggested,and an inversion technique is implemented to present their ***-orbit gravity gradiometry is simulated and employed in stochastic and deterministic algorithms,with results that imply robustness in both cases.

关键词： gravimetry asteroid exploration astrodynamics stochastic optimization

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Total pancreatectomy with islet cell transplantation vs intrathecal narcotic pump infusion for pain control in chronic pancreatitis

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World Journal of Gastroenterology 2016年第16期22卷 4160-4167页

作者： Mohamad Mokadem Lama Noureddine Thomas Howard Lee Mc Henry stuart Sherman Evan L Fogel james L Watkins Glen A Lehman Division of Gastroenterology and Hepatology Roy J. and Lucille A. Carver College of Medicine University of Iowa Iowa IA 52242 United States Division of Nephrology and Hypertension Roy J. and Lucille A. Carver College of Medicine University of Iowa Iowa IA 52242 United States Community Health Network Indianapolis IN 46219 United States Division of Gastroenterology and Hepatology Indiana University Medical Center Indianapolis IN 46202 United States

AIM: To evaluate pain control in chronic pancreatitis patients who underwent total pancreatectomy with islet cell transplantation or intrathecal narcotic pump ***: We recognized 13 patients who underwent intrathecal narcotic pump(ITNP) infusion and 57 patients who underwent total pancreatectomy with autologous islet cell transplantation(TP + ICT) for chronic pancreatitis(CP) pain control between 1998 and 2008 at Indiana University Hospital. All patients had already failed multiple other modalities for pain control and the decision to proceed with either intervention was made at the discretion of the patients and their treating physicians. All patients were evaluated retrospectively using a questionnaire inquiring about their pain control(using a 0-10 pain scale), daily narcotic dose usage, and hospital admission days for pain control before each intervention and during their last follow-up. RESULTS: All 13 ITNP patients and 30 available TP + ICT patients were evaluated. The mean age was approximately 40 years in both groups. The median duration of pain before intervention was 6 years and 7 years in the ITNP and TP + ICT groups, respectively. The median pain score dropped from 8 to 2.5(on a scale of 0-10) in both groups on their last follow up. The median daily dose of narcotics also decreased from 393 mg equivalent of morphine sulfate to 8 mg in the ITNP group and from 300 mg to 40 mg in the TP + ICT group. No patient had diabetes mellitus(DM) before either procedure whereas 85% of those who underwent pancreatectomy were insulin dependent on their last evaluation despite ICT. CONCLUSION: ITNP and TP + ICT are comparable for pain control in patients with CP however with high incidence of DM among those who underwent TP + ICT. Prospective comparative studies and longer follow up are needed to better define treatment outcomes.

关键词： Chronic pancreatitis Intractable pain Total pancreatectomy Islet cell transplantation Intrathecal narcotic pump infusion

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Deployment and demonstration of wide area monitoring system in power system of Great Britain

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Journal of Modern Power Systems and Clean Energy 2016年第3期4卷 506-518页

作者： Peter WALL Papiya DATTARAY Zhaoyang JIN Priyanka MOHAPATRA james YU Douglas WILSON Karine HAY stuart CLARK Mark OSBORNE Phillip M.ASHTON Vladimir TERZIJA Department of Electrical and Electronic Engineering The University of ManchesterManchester M139PLUK SP Energy Networks Ochil HouseHamilton International ParkBlantyre G720HTUK GE Grid Solutions 1 TanfieldEdinburgh EH35DAUK National Grid 1-3 StrandLondon WC2N 5EHUK

The creation of a suitable wide area monitoring system(WAMS) is widely recognized as an essential aspect of delivering a power system that will be secure,efficient and sustainable for the foreseeable future. In Great Britain(GB), the deployment of the first WAMS to monitor the entire power system in real time was the responsibility of the visualization of real time system dynamics using enhanced monitoring(VISOR) project. The core scope of the VISOR project is to deploy this WAMS and demonstrate how WAMS applications can in the near term provide system operators and planners with clear, actionable information. This paper presents the wider scope of the VISOR project and the GB wide WAMS that has been deployed. Furthermore, the paper describes some of the WAMS applications that have been deployed and provides examples of the measurement device performance issues that have been encountered during the project.

关键词： Model validation Line parameter estimation Subsynchronous oscillation Subsynchronous resonance synchronized measurement technology Wide area monitoring

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太阳能发电面临的挑战与机遇(英文)

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电网技术 2007年第20期31卷 82-89页

作者： stuart james Curzon Irvine Anne Stafford 威尔士班戈大学化学系

在所有可再生能源中,光伏太阳能只占一小部分,然而在早期采用它的国家中,如日本和德国,却对全球工业体系起到了促进作用,对未来能源需求产生了意义深远的影响。讨论了光伏模块的当前成本和计划中的成本以及为了拓宽光伏太阳能的应用,材... 详细信息

在所有可再生能源中,光伏太阳能只占一小部分,然而在早期采用它的国家中,如日本和德国,却对全球工业体系起到了促进作用,对未来能源需求产生了意义深远的影响。讨论了光伏模块的当前成本和计划中的成本以及为了拓宽光伏太阳能的应用,材料科学能够为降低此成本壁垒而作出贡献的途径。文章对当前统辖市场的相对成熟的单晶硅光伏电池和有可能降低光伏模块成本的薄膜光伏电池进行了比较,指出薄膜光伏电池的转换效率需要提高而且应该能够进行大规模生产。文中给出了当前碲化镉光伏电池材料研究的一些实例,并对它们应如何在将来进行改进提出了建议。

关键词：碲化镉单品硅光伏太阳能电池可再生能源太阳能薄膜太阳能电池

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The stadium effect:rodent damage patterns in rice fields explored using giving-up densities

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Integrative Zoology 2017年第6期12卷 438-445页

作者： Clare R.JONES Renee P.LORICA james M.VILLEGAS Angelee F.RAMAL Finbarr G.HORGAN Grant R.SINGLETON Alexander M.stuart Crop and Environmental Sciences Division International Rice Research InstituteMetro ManilaPhilippines Natural Resources Institute University of GreenwichChatham MaritimeKentUK Centre for Compassionate Conservation University of Technology SydneyNew South WalesAustralia

Rodents are globally important pre-harvest pests of *** Southeast Asia,rodent damage to growing rice crops is commonly concentrated towards the center of rice fields,away from the field edge,resulting in a clear pattern known as the“stadium effect.”To further understand this behavior of rodent pests and to develop recommendations for future research and management,we examined the relation between giving-up densities(GUDs)and damage *** Tanay,Luzon,Philippines,GUD trays containing pieces of coconut in a matrix of sand were placed at 4 different distances from the field edge to quantify the perceived risk of predation in a rice field pest,Rattus *** were recorded during a dry and wet season crop at the reproductive and ripening stages of *** addition,assessments of active burrows,tracking tile activity and rodent damage to the rice crop,were conducted in the dry *** were significantly lower in the center of the rice fields than on the field edges,suggesting that rodent damage to rice is greater in the middle of rice fields due to a lower perceived predation ***,this perception of predation risk(or fear)increases towards the field edge and was greatest on the rice bund,where there was no vegetation *** discuss the implications for rodent management and rodent damage assessments in rice *** is the first documented use of GUDs in a rice agro-ecosystem in Asia;thus we identify the challenges and lessons learned through this process.

关键词： habitat use landscape of fear pest management Rattus tanezumi rodent behavior

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Rapid,high-resolution detection of environmental change over continental scales from satellite data–the Earth Observation Data Cube

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International Journal of Digital Earth 2016年第1期9卷 106-111页

作者： Adam Lewis Leo Lymburner Matthew B.J.Purss Brendan Brooke Ben Evans Alex Ip Arnold G.Dekker james R.Irons stuart Minchin Norman Mueller Simon Oliver Dale Roberts Barbara Ryan Medhavy Thankappan Rob Woodcock Lesley Wyborn Geoscience Australia CanberraAustralia National Computational Infrastructure Australian National UniversityCanberraAustralia Commonwealth Scientific and Industrial Research Organisation CanberraAustralia NASA Goddard Space Flight Center GreenbeltMDUSA Research School of Finance Actuarial Studies and Applied StatisticsANUCanberraAustralia The Group on Earth Observations Secretariate GenevaSwitzerland

The effort and cost required to convert satellite Earth Observation(EO)data into meaningful geophysical variables has prevented the systematic analysis of all available *** overcome these problems,we utilise an integrated High Performance Computing and Data environment to rapidly process,restructure and analyse the Australian Landsat data *** this approach,the EO data are assigned to a common grid framework that spans the full geospatial and temporal extent of the observations–the EO Data *** approach is pixel-based and incorporates geometric and spectral calibration and quality assurance of each Earth surface reflectance *** demonstrate the utility of the approach with rapid time-series mapping of surface water across the entire Australian continent using 27 years of continuous,25 m resolution *** preliminary analysis of the Landsat archive shows how the EO Data Cube can effectively liberate high-resolution EO data from their complex sensor-specific data structures and revolutionise our ability to measure environmental change.

关键词： Earth Observation Data Cube HPD HPC surface water Landsat Australia

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Sedimentation in Mountain Streams: A Review of Methods of Measurement

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Natural Resources 2013年第1期4卷 92-104页

作者： Lara B. Hedrick james T. Anderson stuart A. Welsh Lian-Shin Lin Department of Civil and Environmental Engineering West Virginia University Morgantown USA Division of Forestry and Natural Resources West Virginia University Morgantown USA US Geological Survey West Virginia Cooperative Fish and Wildlife Research Unit West Virginia University Morgantown USA

The goal of this review paper is to provide a list of methods and devices used to measure sediment accumulation in wadeable streams dominated by cobble and gravel substrate. Quantitative measures of stream sedimentation are useful to monitor and study anthropogenic impacts on stream biota, and stream sedimentation is measurable with multiple sampling methods. Evaluation of sedimentation can be made by measuring the concentration of suspended sediment, or turbidity, and by determining the amount of deposited sediment, or sedimentation on the streambed. Measurements of deposited sediments are more time consuming and labor intensive than measurements of suspended sediments. Traditional techniques for characterizing sediment composition in streams include core sampling, the shovel method, visual estimation along transects, and sediment traps. This paper provides a comprehensive review of methodology, devices that can be used, and techniques for processing and analyzing samples collected to aid researchers in choosing study design and equipment.

关键词： Mountain Samplers Sediment Streams

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Population physical activity legacy from major sports events:The contribution of behavior change science

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Journal of Sport and Health Science 2023年第2期12卷 212-215页

作者： stuart J.H.Biddle Martin S.Hagger Sami Kokko Montse CRuiz Taru Lintunen Keegan Knittle Faculty of Sport&Health Sciences University of JyväskyläJyväskyläFI-40014Finland Centre for Health Research University of Southern QueenslandSpringfield CentralQLD 4300Australia Department of Psychological Sciences University of CaliforniaMercedCA 95343USA

In a commentary paper in the Journal of Sport and Health Science,world-renowned physical activity researchers,Barbara Ainsworth and james Sallis,discussed the opportunities arising from the Beijing 2022 Olympic Winter Games for increasing physical activity in youth.1 Moreover,a clarion call from the Asia-Pacific Society for Physical Activity has been made concerning the physical activity legacy that could arise from the 2032 Olympic and Paralympic Games in Brisbane,Australia(see:ASPA vision for Olympic legacy-ASPA(***)).

关键词： concerning Population behavior

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High-brightness polarized light-emitting diodes

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Light(Science & Applications) 2012年第1期1卷 72-78页

作者： Elison Matioli stuart Brinkley Kathryn M Kelchner Yan-Ling Hu Shuji Nakamura Steven DenBaars james Speck Claude Weisbuch Department of Electrical Engineering and Computer Science Massachusetts Institute of TechnologyCambridgeMAUSA Department of Electrical and Computer Engineering University of CaliforniaSanta BarbaraCAUSA Materials Department University of CaliforniaSanta BarbaraCAUSA Laboratoire de Physique de la Matie`re Condense´e CNRSEcole PolytechniquePalaiseauFrance

Light-emitting diodes are becoming the alternative for future general lighting applications,with huge energy savings compared to conventional light sources owing to their high efficiency and *** light sources would largely enhance the efficiency in a number of applications,such as in liquid-crystal displays,and also greatly improve contrast in general illumination due to the reduction in indirect ***,we demonstrate light-emitting diodes presenting high-brightness polarized light emission by combining the polarization-preserving and directional extraction properties of embedded photonic-crystals applied to non-polar gallium nitride.A directional enhancement of up to 1.8-fold was observed in the total polarized light emission together with a high polarization degree of 88.7%at 465 *** discuss the mechanisms of polarized light emission in non-polar gallium nitride and the photonic-crystal design rules to further increase the light-emitting diode *** work could open the way to polarized white-light emitters through their association with polarization-preserving down-converting phosphors.

关键词： GaN LEDs m-plane polarized light

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