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Comparative utility of vestibular function tests in patients with peripheral and central vestibular dysfunction

Journal of Otology 2024年第1期19卷 5-9页

作者： cameron b.Fattahi Christopher Zaro Janice J.Chung Richard F.Lewis Divya A.Chari Department of Otolaryngology-Head and Neck Surgery UMASS Memorial Medical CenterUniversity of Massachusetts Chan Medical SchoolWorcesterMAUSA Jenks Vestibular Physiology Laboratory Massachusetts Eye and EarBostonMAUSA Department of Otolaryngology-Head and Neck Surgery Massachusetts Eye and EarHarvard Medical SchoolBostonMAUSA Department of Neurology Harvard Medical SchoolBostonMAUSA

background: bithermal caloric irrigation, video head impulse test(vHIT), and rotational testing are commonly used to assess peripheral vestibular function, but the relative clinical utility of each test in differentiating patients with peripheral vestibulopathy is ***: To determine whether(1) the combination of two or more vestibular tests enhances diagnostic utility over a single test;(2) abnormal test results on vestibular tests correlate with one ***: Retrospective analysis of data collected from multidisciplinary vestibular clinics at two academic medical centers from 2016 to ***: 150 patients(54.10 ± 15.09 years, 88 females) were included. No individual test was significantly better at predicting the presence of peripheral vestibular damage(p > 0.05). vHIT test results improved significantly when combined with either the caloric test(p = 0.007) or rotary chair test(p = 0.039). Caloric and rotational testing had high sensitivity(74.65% and 76.06%, respectively) and specificity(83.54% and 78.48%, respectively). vHIT demonstrated excellent specificity(89.87%) but poor sensitivity(47.89%). Caloric, vHIT, and rotary chair tests results did not correlate with one another(p > 0.05).Conclusions: Vestibular function tests have comparable diagnostic utility, yet each offers unique advantages. Caloric and rotational testing may be best suited for screening peripheral damage and vHIT may function ideally as a confirmatory test.

关键词： vestibular patients specificity

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Dynamic material performance of cold-formed steel hollow sections： a state-of-the-art review

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Frontiers of Structural and Civil Engineering 2017年第2期11卷 209-227页

作者： cameron b. RITCHIE Jeffrey A. PACKER Xiao-Ling ZHAO Amin HEIDARPOUR Yiyi CHEN Department of Civil Engineering University of Toronto Toronto Ontario MSS 1A4 Canada Department of Civil Engineering Monash University Victoria 3800 Australia College of Civil Engineering Tongji University Shanghai 200092 China

This paper presents a literature review focused on the material performance of cold-formed, carbon steel, hollow structural sections under impulsive （highly dynamic） loading. Impulsive loading, represented by impact and blast, is characterized by a very rapid, time-dependent loading regime in the affected members and materials. Thus, the effect of high-strain-rate loading is initially reviewed. Next the material toughness, an important energy-absorption property and one measure of a material＇s ability to arrest fracture, is considered by means of studying the Charpy V-notch behavior. The response of hollow sections under axial and lateral impact loading is then reviewed. Studies of blast on hollow sections, most of which fall under the categories of contact/near-field loading or far-field loading are presented. Under large-scale field blast experiments, cold-formed hollow sections have shown excellent behavior. Software for modeling blast loading and structural response, the latter including single degree of freedom analysis and explicit finite element analysis, is described and discussed.

关键词： cold-formed steel hollow structural sections composites impulsive loading impact blast experimentation analysis material properties

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A desktop-computer simulation for exploring the fission barrier

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Natural Science 2011年第4期3卷 323-327页

作者： b. cameron Reed 不详

A model of a fissioning nucleus that splits symmetrically both axially and equatorially is used to show how one can predict the presence of a fission barrier of several tens of MeV for nuclides of mass number A ~ 90 and of ~ 10 MeV for elements such as uranium. While the present model sacrifices some physical realism for the sake of analytic and programming simplicity, it does reproduce the general behavior of the run of fission barrier energy as a function of mass number as revealed by much more sophisticated models. Its intuitive appeal and tractability make it appropriate for presentation in a student-level “Modern Physics” class.

关键词： Nuclear Fission Fission barrier Numerical Simulation

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Optimizing oncolytic virus design:a“Swiss army knife”approach to create a systemically delivered therapeutic

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1791-1792页

作者： Carolina S.Ilkow John cameron bell Ottawa Hospital Research Institute 501 Smyth RoadOttawaONK1H 8L6Canada

In a recent paper published in Nature biotechnology,Chen et al.1 describe a multiplex oncolytic virus platform that coupled with adoptive T cell therapy could solve the problem of repeat,systemic delivery of virus based *** is widely accepted that multi-targeted therapeutic approaches attacking several facets of cancer biology are necessary to effectively deal with the tumor heterogeneity that exists within and between patients.

关键词： therapeutic al. targeted

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An electropenetrography waveform library for the probing and ingestion behaviors of Culex tarsalis on human hands

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Insect Science 2024年第4期31卷 1165-1186页

作者： Anastasia M.W.Cooper Samuel b.Jameson Victoria Pickens cameron Osborne Elaine A.backus Kristopher Silver Dana N.Mitzel Department of Entomology Kansas State UniversityManhattanKansasUSA Department of Tropical Medicine Tulane University School of Public Health and Tropical MedicineNew OrleansLos AngelesUSA USDA Agricultural Research Service San Joaquin Valley Agricultural Sciences CenterParlierCaliforniaUSA National bio and Agro-Defense Facility USDA Agricultural Research ServiceManhattanKansasUSA

Culex tarsalis Coquillett(Diptera:Culicidae)mosquitoes are capable of vectoring numerous pathogens affecting public and animal ***,the probing behaviors of mosquitoes are poorly understood because they occur in opaque ***(EPG)has the potential to elucidate these behaviors by recording the electrical signals generated during *** used an AC–DC EPG with variable input resistors(Ri levels)to construct a waveform library for *** feeding on human *** events associated with mosquito probing were used to characterize waveforms at four Ri levels and with two electrical current *** optimal settings for EPG recordings of *** probing on human hands was an Ri level of 10^(7)Ohms using an applied signal of 150 millivolts alternating *** for *** included those previously observed and associated with probing behaviors in Aedes aegypti L.(Diptera:Culicidae):waveform families J(surface salivation),K(stylet penetration through the skin),L(types 1 and 2,search for a blood vessel/ingestion site),M(types 1 and 2,ingestion),N(type 1,an unknown behavior which may be a resting and digestion phase),and W(withdrawal).However,we also observed variations in the waveforms not described in ***,which we named types L3,M3,M4,and *** investigation enhances our understanding of mosquito probing *** also provides a new tool for the automated calculation of peak *** work will facilitate future pathogen acquisition and transmission studies and help identify new pest and disease management targets.

关键词： AC-DC blood feeders electrical penetration graph EPG human hands mosquitoes waveform library

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渗碳齿轮钢性能的探讨

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机械设计与研究 1987年第4期 53-61页

作者： T.b.cameron,程光无锡采煤机械厂美

渗碳钢一般用在要求保证性能的重载状况下,并在许多情况下要承受随机的交变载荷。各种型式的运输设备所用的齿轮就是这样。它们的传动特点是能承受高周疲劳并伴随着间歇性的重载,如加速度运动、齿轮变速、巨大的振动和在运行中遇到的其... 详细信息

渗碳钢一般用在要求保证性能的重载状况下,并在许多情况下要承受随机的交变载荷。各种型式的运输设备所用的齿轮就是这样。它们的传动特点是能承受高周疲劳并伴随着间歇性的重载,如加速度运动、齿轮变速、巨大的振动和在运行中遇到的其他突然变化。在本文中,这种载荷条件归结为“综合载荷”。从工程的观点来看,分析综合载荷颇

关键词：高周疲劳性能工艺方法 IFS OL 疲劳极限持久极限疲劳力学性质渗碳钢合金元素残余奥氏体

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自然杀伤细胞和T淋巴细胞在银屑病发病中作用的研究

自然杀伤细胞和T淋巴细胞在银屑病发病中作用的研究

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2002中国中西医结合皮肤性病学术会议

作者：王飞 Griffiths CEM Kirby b cameron AL 南京东南大学附属中大医院皮肤科英国蔓彻斯特大学Hope医院皮肤病中心

本文用免疫组化法检查银屑病患者皮损处、非皮损处外观正常皮肤NK细胞、T细胞表面特异性抗原的表达,探讨NK细胞、T细胞在银屑病发病中的作用和相互关系。

关键词：

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TRIbALOY——一种新型耐磨耐蚀合金

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功能材料 1975年第4期 45-51页

作者： C.b.cameron D.P.Ferriss 思聪

1.引言重要的元件和整机设计人员经常面临的问题之一,即选用既耐元件接触引起的机械磨损又耐介质腐蚀的材料,往往只能取折衷方案。从材料选用的观点来看,这两种性能长期以来都是相矛盾的。可是在许多恶劣环境和要求有长寿命,高精度的场... 详细信息

1.引言重要的元件和整机设计人员经常面临的问题之一,即选用既耐元件接触引起的机械磨损又耐介质腐蚀的材料,往往只能取折衷方案。从材料选用的观点来看,这两种性能长期以来都是相矛盾的。可是在许多恶劣环境和要求有长寿命,高精度的场合对二者又都需要。

关键词：等离子喷射涂层试块钢环镍基合金镍合金 TRIbALOY

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抗腐蚀耐磨损新合金

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兰州理工大学学报 1982年第S1期 39-44页

作者： C.b.cameron,D.P.Ferriss,董元源美美

经过长期探索,冶金学家已经提供了一种不仅耐腐蚀耐磨损,而且易于成型的合金。有些材料抗磨损,有些材料抗腐蚀,但很少材料既抗磨损又耐腐蚀。一般说,抗磨损材料在严峻的工作环境下很快就被腐蚀,尤其是在高温。而最耐腐蚀的材料却在载... 详细信息

经过长期探索,冶金学家已经提供了一种不仅耐腐蚀耐磨损,而且易于成型的合金。有些材料抗磨损,有些材料抗腐蚀,但很少材料既抗磨损又耐腐蚀。一般说,抗磨损材料在严峻的工作环境下很快就被腐蚀,尤其是在高温。而最耐腐蚀的材料却在载荷作用下擦伤并磨损。偶然能找到兼有上述两种性质的一种材料,但又碰上难于成型的问题。

关键词：合金粉末合金粉抗磨损磨损试验材料试验喷焊层抗腐蚀

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氨基磺酸处理羊毛的染色性能

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国外纺织技术（化纤．染整．环境保护分册） 1989年第6期 20-23页

作者： b.A.cameron M.T.Pailthorpe 袁农

引言目前,对于通常用于羊毛的各种染料的防染,还没有普遍有效的反应性防染处理方法。许多早期的羊毛防染处理都是基于破坏阳极“上染位置”和阴离子染料分子之间的离子引力而获得防染这一假设的。由于这一假设已被证实是不正确的。

关键词：氨基磺酸羊毛染色性能

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