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继发于眼球穿通伤后的青光眼:美国眼外伤登记处的队列研究

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世界核心医学期刊文摘（眼科学分册） 2005年第6期1卷 8-8页

作者： Girkin C.A. McGwin Jr. G. Morris R. kuhn f. 陈立军

To evaluate associations between baseline structural and f.nctional ocular characteristics and the risk of.developing posttraumatic glaucoma af.er penetrating ocular injury. Prospective cohort study Data f.om the United States Eye Injury Registry (USEIR) were obtained f.om a total of.3,627 patients who ex-perienced penetrating ocular injury. The risk of.posttraumatic glaucoma and associated structural and f.nctional ocular risk f.ctors was estimated. The risk of.developing posttraumatic glaucoma was 2.67% . The development of.glaucoma was independently associated with several baseline characteristics including advancing age (relative risk 1.02/yr 95% conf.dence interval [1.00, 1.03]), lens injury (1.56 [1.03, 2.35]), poor baseline visual acuity (2.59 [1.62, 4.14]), and inf.ammation (3.02 [1.52, 6.02]). This study provides an estimate f.r the risk of.developing glaucoma af.er penetrating ocular injury in a large cohort of.patients and determined several f.ctors that are signif.cantly associated with the development of.post-traumatic glaucoma, including advancing age, lens injury, poor visual acuity, and intraocular inf.ammation.

关键词：眼球穿通伤眼外伤队列研究晶体损伤低视力基础结构评估依据基础特征

A ref.tation of.reported Levallois technology f.om Guanyindong Cave in south China

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National Science Review 2019年第6期6卷 1094-1096页

作者： f.ng Li Yinghua Li Xing Gao Steven L.kuhn Eric Boёda John W.Olsen Key Laboratory of.Vertebrate Evolution and Human Origins of.the Chinese Academy of.Sciences Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences CAS Center f.r Excellence in Lif. and Paleoenvironment School of.History Wuhan University University of.Chinese Academy of.Sciences School of.Anthropology University of Arizona C.N.R.S.-UMR7041 Anthropologie des techniques des espaces et des territoires au Plio-Pléistocène Maison Archéologie et Ethnologie

As one of.the most complex f.rms of.lithic technology known f.r the Paleolithic, research on the Levallois stoneknapping method is critically relevant to our understanding of.the cognitive abilities and depth of.planning capabilities of.archaic hominins, as well as the dif.usion of.knowledge and social learning in Pleistocene societies. f.r decades,

关键词： A ref.tation of.reported Levallois technology f.om Guanyindong Cave in south China

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减少X线诊断中必要的辐射剂量

放射学实践 1993年第4期8卷 183-186页

作者： f.Gudden H.kuhn 于凌 c/o Siemens AG Bereich Medizinische Technik Henkestr. 127 W-8520 Erlangen. 同济医科大学附属同济医院

在对X线诊断的医疗价值进行评估的同时,还必须考虑电离辐射的生物学效应。医疗技术的进步和现代的胶片-增感屏-系统的进展,在保证或改善照片质量的前提下已经使必要的辐射剂量显著减少。

关键词： X线诊断辐射剂量减少

老年人不同年龄段脊柱椎体外周骨定量CT测定研究

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中国老年学杂志 2003年第1期23卷 17-20页

作者：沈宁江 kuhn V Eckstein f.Putz R 海南省人民医院骨病外科海南海口570311 德国慕尼黑大学医学院解剖研究所

目的　研究老年人各年龄段 T3～ L5椎体骨密度及椎体横断面面积。方法　用外周骨定量 CT(p QCT)仪测量 40具老年尸体中 60 0个椎体的总骨密度、松质骨密度、皮质下骨密度、皮质骨密度、椎体横断面总面积、松质骨面积、皮质下骨面积及皮... 详细信息

目的　研究老年人各年龄段 T3～ L5椎体骨密度及椎体横断面面积。方法　用外周骨定量 CT(p QCT)仪测量 40具老年尸体中 60 0个椎体的总骨密度、松质骨密度、皮质下骨密度、皮质骨密度、椎体横断面总面积、松质骨面积、皮质下骨面积及皮质骨面积 ,分别统计 60～ 69岁 (A组 )、70～ 79岁 (B组 )、80～ 89岁 (C组 )、90～ 98岁 (D组 )椎体骨密度值。结果　 T3～ L5椎体总骨密度 (mg/ cm3)为 1 88.2 5～ 1 91 .60 ,松质骨密度为1 2 8.0 1～ 1 30 .66,皮质下骨密度为 454.90～ 461 .87,皮质骨密度为 764.1 3～ 769.55。结论　 60～ 79岁椎体总骨密度值保持在相对稳定水平 ,80岁以后该值下降较明显。

关键词：外周骨定量CT 椎体骨密度老年人骨质疏松症

Scotia Sea stratigraphy and environmental changes of.the past 300 kyrs

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Scotia Sea stratigraphy and environmental changes of the pas...

Electrical and optical characteristics of.highly transparent MOVPE-grown AlGaN-based tunnel heterojunction LEDs emitting at 232 nm

中国古生物学会第26届学术年会

作者： Rainer Gersonde Thomas f.ederichs Gerhard kuhn Stif.ung Alf.ed-Wegener-Institut f.r Polar- und Meeresf.rschung in der Helmholtz-Gemeinschaf. 27568 Bremerhaven Germany f.chbereich Geowissenschaf.en der Universitt Bremen 28334 Bremen Germany

The establishment of.sediment core stratigraphy in southern high latitudes ocean is hampered by lack of.calcareous microf.ssils,which can be well dated,and the isotopic signature can be globally *** on multi-proxy app... 详细信息

关键词： Scotia Sea stratigraphy magnetic susceptibility diatom biostratigraphy

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Photonics Research 2021年第6期9卷 1117-1123页

作者： f.ANK MEHNKE CHRISTIAN kuhn MARTIN GUTTMANN LUCA SULMONI VERENA MONTAG JOHANNES GLAAB TIM WERNICKE MICHAEL KNEISSL Institute of.Solid State Physics Technische Universität Berlin10623 BerlinGermany f.rdinand-Braun-Institut Leibniz-Institut für Höchstfrequenztechnik12489 BerlinGermany Current address:School of.Electrical and Computer Engineering Georgia Institute of TechnologyAtlantaGeorgia 30332USA

We present the growth and electro-optical characteristics of.highly transparent AlGaN-based tunnel heterojunction light-emitting diodes(LEDs)emitting at 232 nm entirely grown by metalorganic vapor phase epitaxy(MOVPE).A GaN:Si interlayer was embedded into a highly Mg-and Si-doped Al_(0.87)Ga_(0.13)N tunnel junction to enable polarization f.eld enhanced *** LEDs exhibit an on-waf.r integrated emission power of.77μWat 5 mA,which correlates to an external quantum ef.iciency(EQE)of.0.29%with 45μWemitted through the bottom sapphire substrate and 32μW emitted through the transparent top *** depositing a highly ref.ective aluminum ref.ector,a maximum emission power of.1.73 mW was achieved at 100 mA under pulsed mode operation with a maximum EQE of.0.35%as collected through the bottom substrate.

关键词： heterojunction MOVPE AlGaN

Compliance and Tolerance of.a New High Protein and High Energy Oral Nutritional Supplement in Older Adults

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Journal of.Nutritional Oncology 2018年第3期3卷 120-129页

作者： Cornelius Koch Annika Dax Andre Warnke Lioba Pauly Stephanie Reichart Katharina S.kuhn Ericka A Pestana John f.Stover Konstantin Lekkos SocraTec R&D GmbH ErfurtGermany f.esenius Kabi Deutschland GmbH Bad HomburgGermany Medical Writing StuttgartGermany Helios Klinikum HildesheimDepartment of GeriatricsGermany

Background and objectives Volume,caloric density,and timing of.administration inf.uence compliance to oral nutritional supplements(ONS).The provision of.high energy,high protein and low volume ONS may allow easy achievement of.intakes considered ef.ective in improving nutritional *** report the evaluation of.a new low volume,energy dense ONS in older *** and study design Two open-label studies,each including 20 older adults(75±4 and 76±5 years)in residential *** received one bottle(125 ml,400 kcal,20 g protein)of.the new ONS daily,either as a single or multiple dose(3×40 ml/~400 kcal)f.r 7 *** outcome was gastrointestinal(GI)tolerance;additional parameters of.interest were palatability and compliance(ratio of.consumed *** volume).Data were evaluated *** All participants completed the studies and reported good *** symptoms were comparable bef.re f.rst and af.er last ingestion,55%and 65%(single and multiple dose regimens)did not report any GI *** consumed 96%and 94%of.the prescribed volume,***,smell and appearance were rated as“good”or“excellent”on both days of.recording(day 1 and day 7)by 75-90%of.the participants in both *** A high energy,high protein ONS delivered in a small volume was well tolerated and accepted in older adults,with excellent compliance,independent of.the delivery as single or multiple ***,this new ONS represents a clinically valuable option f.r high compliance to nutritional therapy.

关键词： Compliance Elderly Palatability Tolerance

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The AK Transf.rm

Applied Mathematics 2017年第2期8卷 145-153页

作者： Altair S. de Assis Siegbert kuhn Juan A. Limaco Comissã o Nacional de Energia Nuclear—DPD Rio de Janeiro RJ Brasil Universidade f.deral f.uminense—GMA Niterói RJ Brasil Universitä t Innsbruck Institut für Theoretische Physik Innsbruck Austria

In this brief.communication we present a new integral transf.rm, so f.r unknown, which is applicable, f.r instance, to studying the kinetic theory of.natural eigenmodes or transport excited in plasmas with bounded distribution f.nctions such as in Q machines/plasma diodes or in the scrap-of. layer of.Tokamak f.sion plasmas. The results are valid f.r f.nctions of.f.nction spaces—Lebesgue spaces, which are def.ned using a natural generalization of.the p-norm f.r f.nite-dimensional vector spaces, where is the real set, σs is the σ-algebra of.Lebesgue measurable sets, and the μ Lebesgue measure. , so that . Note that, using a simpler notation, more natural/known to engineers, f.could be considered any piecewise continuous f.nction, that is: Here is a Euclidian space with the usual norm (inner product: ) given by: [1].

关键词： Integral Transf.rm Lebesgue Measures Kinetic Theory of Bounded Plasmas Natural Eigenmodes Transport Q-Machines Plasma Diodes Tokamak Nuclear f.sion

MOVPE-grown AlGaN-based tunnel heterojunctions enabling f.lly transparent UVC LEDs

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Photonics Research 2019年第5期7卷 I0008-I0012页

作者： Christian kuhn Luca Sulmoni Martin Guttmann Johannes Glaab Norman Susilo Tim Wernicke Markus Weyers Michael Kneissl Technische Universitat Berlin Institute of Solid State Physics Hardenbergstr. 36 EW6-1 10623 Berlin Germany f.rdinand-Braun-Institut Leibniz-Institut fur Hochstfrequenztechnik Gustav-Kirchhoff-Str. 4 12489 Berlin Germany

We report on AlGaN-based tunnel heterojunctions grown by metalorganic vapor phase epitaxy enabling f.lly transparent UVC LEDs by eliminating the absorbing p-AlGaN and p-GaN layers. f.rthermore, the electrical characteristics can be improved by exploiting the higher conductivity of.n-AlGaN layers as well as a lower resistance of.n-contacts. UVC LEDs with AlGaN:Mg/AlGaN:Si tunnel junctions exhibiting single peak emission at268 nm have been realized, demonstrating ef.ective carrier injection into the AlGaN multiple quantum well active region. The incorporation of.a low band gap interlayer enables ef.ective tunneling and strong voltage ***, the interlayer thickness is systematically varied. Tunnel heterojunction LEDs with an 8 nm thick GaN interlayer exhibit continuous-wave emission powers >3 m W near thermal rollover. External quantum ef.iciencies of.1.4% at a DC current of.5 m A and operating voltages of.20 V are measured on-waf.r. Laterally homogeneous emission is demonstrated by UV-sensitive electroluminescence microscopy images. The complete UVC LED heterostructure is grown in a single epitaxy process including in situ activation of.the magnesium acceptors.

关键词： MOVPE-grown AlGaN-based UVC LEDs