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ON A CURVATURE CHARACTERIZATION OF RICCI-PsEUDOsYMMETRIC HYPERsURFACEs

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Acta Mathematica scientia 2004年第3期24卷 361-375页

作者： Malgorzata Glogowska Department of Mathematics Agricultural University of Wroclaw Grunwaldzka S3 50-357 Wroclaw POLANDhe author presents a curvature characterization of Ricci-pseudosymmetric hypersurfaces in semi-Riemannian space forms Nsn+1(c) n>4.

The author presents a curvature characterization of Ricci-pseudosymmetric hypersurfaces in semi-Riemannian space forms Nsn+1(c), n>4.

关键词： Ricci-pseudosymmetric manifold pseudosymmetric manifold hypersurface Cartan hypersurface clifford torus

clifford分析中一个带位移的非线性边值问题

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系统科学与数学 1991年第4期11卷 336-345页

作者：黄沙河北师范大学数学系石家庄050016

■Gilbert,黄沙、李生训等人对 clifford 分析中函数性质作了一系列研究.1987年徐振远讨论了实 clifford 分析中一个基本的边值问题,1989年黄沙、李生训利用陆启铿关于多复变函数于典型域上的调和分析的结果,研究了复 clifford 分析中... 详细信息

■Gilbert,黄沙、李生训等人对 clifford 分析中函数性质作了一系列研究.1987年徐振远讨论了实 clifford 分析中一个基本的边值问题,1989年黄沙、李生训利用陆启铿关于多复变函数于典型域上的调和分析的结果,研究了复 clifford 分析中的拟变态Dirichlet 边值问题.1990年黄沙研究实 clifford 分析中一种边值问题.

关键词： clifford分析边值问题非线性

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手术范围影响乳头状甲状腺癌患者的生存

医学信息（手术学分册） 2008年第3期21卷 283-283页

作者： Bilimoria Karl Y. Bentrem David J. Ko clifford Y. stewart Andrew K. Winchester David P. Talamonti Mark s. sturgeon Cord

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脑膜瘤对AV-1451的摄取研究

中华核医学与分子影像杂志 2018年第6期38卷 455-455页

作者：唐军 Tyler J.Bruinsma Derek R.Johnson Ping Fang Matthew senjem Keith A.Josephs Jennifer L.Whitwell Bradley F.Boeve Mukesh K Pandey Kejal Kantarci David T.Jones Pras.anthi Vemuri Melissa Murray Jonathan Graff-Radford Christopher G.schwarz David s.Knopman Ronald C.Petersen clifford R.Jack Val J.Lowe 上海交通大学医学院附属苏州九龙医院核医学科 Department of Radiology Mayo Clinic

目的 AV-1451是;F标记的正电子核素显像剂,;F-AV-1451可与成对螺旋丝状的tau蛋白（PHF-tau）结合,而tau蛋白与阿尔茨海默病的病理机制有关。对650例认知正常的对象进行AV-1451显像的过程中,偶然发现1例脑膜瘤患者的病灶可显著摄取AV-145... 详细信息

目的 AV-1451是;F标记的正电子核素显像剂,;F-AV-1451可与成对螺旋丝状的tau蛋白（PHF-tau）结合,而tau蛋白与阿尔茨海默病的病理机制有关。对650例认知正常的对象进行AV-1451显像的过程中,偶然发现1例脑膜瘤患者的病灶可显著摄取AV-1451。因此,对该650例研究对象进行回顾性分析,以总结其中的脑膜瘤患者病灶对AV-1451的摄取特点。方法经回顾性分析确诊,650例研究对象中有脑膜瘤患者12例,对其PET/CT显像和MRI图像重新读片,并对PET图像进行半定量分析。本底和肿瘤组织的标准摄取值（sUV）采用配对t检验进行统计分析,AV-1451的摄取与CT图像上钙化灶的出现的关系采用确切概率法进行分析。结果 12例脑膜瘤患者中,7例（58%）经视觉分析及计算肿瘤与正常皮质比值（T/N=1.90±0.83）均发现病灶对AV-1451的摄取高于本底。t检验提示本底和肿瘤组织的sUV差异无统计学意义,但在T/N大于1的患者中,其病灶对AV-1451的摄取增高差异有统计学意义（P=0.01）。AV-1451摄取增高与钙化灶的出现明显相关。结论使用AV-1451行PET显像时,应对PET和解剖影像学图像同时读片,以避免将脑膜瘤对AV-1451的摄取误读为PHF-tau蛋白的聚集。

关键词：脑膜瘤 AV-1451显像

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clifford分析中奇异积分的反转公式

系统科学与数学 1999年第2期19卷 246-250页

作者：黄沙牟卫华河北师范大学数学系石家庄050016 石家庄铁道学院数学教研室石家庄050043

借助于多元复分析的思想，本文用两种方法证明了clifford分析中奇异积分的反转公式．

关键词： clifford分析多元复分析奇异积分反转公式

Decline in subarachnoid haemorrhage volumes associated with the first wave of the COVID- 19 pandemic

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stroke & Vascular Neurology 2021年第4期6卷 542-552,I0026-I0032页

作者： Thanh N Nguyen Diogo C Haussen Muhammad M Qureshi Hiroshi Yamagami Toshiyuki Fujinaka Ossama Y Mansour Mohamad Abdalkader Michael Frankel Zhongming Qiu Allan Taylor Pedro Lylyk Omer F Eker Laura Mechtouff Michel Piotin Fabricio Oliveira Lima Francisco Mont'Alverne Wazim Izzath Nobuyuki sakai Mahmoud Mohammaden Alhamza R Al-Bayati Leonardo Renieri salvatore Mangiafico David Ozretic Vanessa Chalumeau saima Ahmad Umair Rashid syed Irteza Hussain seby John Emma Griffin John Thornton Jose Antonio Fiorot Rodrigo Rivera Nadia Hammami Anna M Cervantes-Ars.anian Hormuzdiyar H Dasenbrock Huynh Le Vu Viet Quy Nguyen steven Hetts Romain Bourcier Romain Guile Melanie Walker Malveeka sharma Don Frei Pascal Jabbour Nabeel Herial Fawaz Al-Mufti Atilla Ozcan Ozdemir Ozlem Aykac Dheeraj Gandhi Chandril Chugh Charles Matouk Pascale Lavoie Randall Edgell Andre Beer-Furlan Michael Chen Monika Killer-Oberpfalzer Vitor Mendes Pereira Patrick Nicholson Vikram Huded Nobuyuki Ohara Daisuke Watanabe Dong Hun shin Pedro sC Magalhaes Raghid Kikano santiago Ortega-Gutierrez Mudassir Farooqui Amal Abou-Hamden Tatsuo Amano Ryoo Yamamoto Adrienne Weeks Elena A Cora Rotem sivan-Hoffmann Roberto Crosa Markus Möhlenbruch simon Nagel Hosam Al-Jehani sunil A sheth Victor s Lopez Rivera James E siegler Achmad Fidaus sani Ajit s Puri Anna Luisa Kuhn Gianmarco Bernava Paolo Machi Daniel G Abud Octavio M Pontes-Neto Ajay K Wakhloo Barbara Voetsch Eytan Raz shadi Yaghi Brijesh P Mehta Naoto Kimura Mamoru Murakami Jin soo Lee Ji Man Hong Robert Fahed Gregory Walker Eiji Hagashi steve M Cordina Hong Gee Roh Ken Wong Juan F Arenillas Mario Martinez-Galdamez Jordi Blasco Alejandro Rodriguez Vasquez Luisa Fonseca M Luis silva Teddy Y Wu simon John Alex Brehm Marios Psychogios William J Mack Matthew Tenser Tatemi Todaka Miki Fujimura Roberta Novakovic Jun Deguchi Yuri sugiura Hiroshi Tokimura Rakesh Khatri Michael Kelly Lissa Peeling Yuichi Murayama Hugh stephen Winters Johnny Wong Mohamed Teleb Jeremy Payne Hiroki Fukuda Kosuke Miyake Junsuke shimbo Yusuke sug Neurology RadiologyBoston Medical CenterBostonMassachusettsUSA Neurology Marcus Stroke&Neuroscience CenterGrady Memorial HospitalEmory University School of MedicineAtlantaGAUSA Radiology Radiation OncologyBoston University School of MedicineBostonMassachusettsUSA Neurology National Hospital Organization Osaka National HospitalOsakaJapan Neurosurgery National Hospital Organization Osaka National HospitalOsakaJapan Neurology Alexandria UniversityAlexandriaEgypt Radiology Boston Medical CenterBostonMassachusettsUSA Department of Neurology Xinqiao HospitalChongqingChina Neurosurgery University of Cape TownRondeboschWestern CapeSouth Africa Neurosurgery Interventional NeuroradiologyClinica La Sagrada FamiliaBuenos AiresArgentina Neuroradiologie Neurologie VasculaireHospices Civils de LyonLyonAuvergne-Rhône AlpesFrance Neurologie Vasculaire Hospices Civils de LyonLyonAuvergne-Rhône AlpesFrance Interventional Neuroradiology Fondation Ophtalmologique Adolphe de RothschildParisÎle-de FranceFrance Neurology Hospital Geral de FortalezaFortalezaBrazil Interventional Neuroradiology Hospital Geral de FortalezaFortalezaBrazil Neuroradiology Nottingham University Hospitals NHS TrustNottinghamUK Department of Neurosurgery Kobe City Medical Center General HospitalKobeHyogoJapan Interventional Neurovascular Unit University Hospital CareggiFirenzeToscanaItaly Neuroradiology University Hospital Centre ZagrebZagrebCroatia Interventional Neuroradiology Hopital BicetreLe Kremlin-BicetreFrance stroke and Interventional Neuroradiology Lahore General HospitalLahorePakistan Neurological Institute Cleveland Clinic Abu DhabiAbu DhabiUAE Department of Radiology Beaumont HospitalDublinIreland Neurology Stroke UnitHospital-Estadual CentralVitoriaBrazil Neuroradiology Instituto de Neurocirugia Dr AsengoSantiagoChile Interventional Neuroradiology Institut National de NeurologieTunisTunisia Neurology Boston Medical CenterBostonMassachusettsUSA Neurosurgery Boston Medical Center

Background During the COVID-19 pandemic,decreased volumes of stroke admissions.and mechanical thrombectomy were *** study’s objective was to examine whether subarachnoid haemorrhage(sAH)hospitalisations.and ruptured aneurysm coiling interventions demonstrated similar *** We conducted a cross-sectional,retrospective,observational study across 6 continents,37 countries.and 140 comprehensive stroke *** with the diagnosis of sAH,aneurysmal sAH,ruptured aneurysm coiling interventions.and COVID-19 were identified by prospective aneurysm databases or by International Classification of Diseases,10th Revision,*** 3-month cumulative volume,monthly volumes for sAH hospitalisations.and ruptured aneurysm coiling procedures were compared for the period before(1 year and immediately before)and during the pandemic,defined as 1 March-31 May *** prior 1-year control period(1 March-31 May 2019)was obtained to account for seasonal *** There was a significant decline in sAH hospitalisations,with 2044 admissions in the 3 months immediately before and 1585 admissions during the pandemic,representing a relative decline of 22.5%(95%CI−24.3%to−20.7%,psation of ruptured aneurysms declined with 1170-1035 procedures,respectively,representing an 11.5%(95%CI−13.5%to−9.8%,p=0.002)relative *** analysis was noted for aneurysmal sAH hospitalisation decline from 834 to 626 hospitalisations,a 24.9%relative decline(95%CI−28.0%to−22.1%,pse in ruptured aneurysm coiling was noted in low coiling volume hospitals of 41.1%(95%CI 32.3%to 50.6%,p=0.008)despite a decrease in sAH admissions in this *** There was a relative decrease in the volume of sAH hospitalisations.aneurysmal sAH hospitalisations.and ruptured aneurysm embolisations during the COVID-19 *** findings in sAH are consistent with a decrease in other emergencies,such as stroke and myocardial infarction.

关键词： diagnosis representing subarachnoid