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宠物鸟H3N8亚型流行性感冒病毒NA基因分子特征性分析

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病毒学报 2005年第2期21卷 145-149页

作者：张云刘明于康震 robert g.webster St.Jude Children’s Research Hospital 中国农业科学院哈尔滨兽医研究所兽医生物技术国家重点开放实验室哈尔滨150001

虽然流行性感冒(流感)病毒的自然宿主是野生水禽类,作为宠物的雀形目鸟(Passeriformes)不代表流感病毒主要储存库[1-4,6,7],但Stallknecht和Shane 1988年对21 318份鸟的样品分析后发现,雀形目鸟中流感病毒的分离率占2.9%,表明雀形目鸟... 详细信息

虽然流行性感冒(流感)病毒的自然宿主是野生水禽类,作为宠物的雀形目鸟(Passeriformes)不代表流感病毒主要储存库[1-4,6,7],但Stallknecht和Shane 1988年对21 318份鸟的样品分析后发现,雀形目鸟中流感病毒的分离率占2.9%,表明雀形目鸟在流感病毒储存库中起着一定的作用.

关键词：流感病毒亚型流行性感冒病毒分子特征分离率自然宿主宠物 NA基因野生水禽禽类

1994-2013年中国H9N2亚型流感病毒的基因遗传进化分析

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1994-2013年中国H9N2亚型流感病毒的基因遗传进化分析

Is Business School Performance Impacted by Market Orientation Toward Students, Employers of Students, and Parents of Students？ Views from Accounting Department Chairpersons, Business School Deans, and Academic Vice-Presidents of AACSB Business Schools

中国畜牧兽医学会2016年学术年会、中国畜牧兽医学会禽病学分会第十八次学术研讨会

作者：李翀王金亮王硕果 robert Carter 王晨曦孙洪磊孙怡朋吴刚 robert g.webster 刘金华蒲娟

引言自1994年中国大陆首次分离到H9N2亚型流感病毒以来,其在中国发生了广泛且持续的变异及进化,且自2008年后,还未有研究对我国H9N2亚型流感病毒进行系统的基因进化分析。本研究拟对1994至2013年间我国分离的H9N2亚型流感病毒进行系统... 详细信息

引言自1994年中国大陆首次分离到H9N2亚型流感病毒以来,其在中国发生了广泛且持续的变异及进化,且自2008年后,还未有研究对我国H9N2亚型流感病毒进行系统的基因进化分析。本研究拟对1994至2013年间我国分离的H9N2亚型流感病毒进行系统的进化分析,了解其遗传进化和地理分布规律,评估不同宿主对H9N2流感病毒基因进化的作用,为我国H9N2亚型流感病毒的科学防控和预警提供理论依据。材料与方法

关键词：流感病毒基因遗传

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Journal of Modern Accounting and Auditing 2018年第2期14卷 49-59页

作者： robert L. webster Kevin L. Hammond Ouachita Baptist University Arkansas USA The University of Tennessee at Martin Tennessee USA

This paper is part of a continuing research stream dealing with organizational behavior and performance in higher education, specifically within AACSB-Intemational business schools. Using responses to a national survey sent to AACSB-International members schools located in the United States, we report market orientation levels toward students, parents of students, and employers of students as well as levels of organizational performance reported by accounting department chairpersons, business school deans, and academic vice-presidents. Theory and empirical research suggest that higher levels of market orientation result in higher levels of organizational performance. Comparisons of the various input scores for each customer group （students, parents of students, and employers of students） submitted by the survey respondents are made against a benchmark established for businesses in the marketing literature and then scores are compared by administrative groups against one another. Finally, regression analysis is used to determine if the reported levels of organizational performance are impacted by the levels of reported market orientation. Altogether, 101 accounting department chairpersons, 130 business school deans, and 110 academic vice-presidents responded. The paper presents details of the research process, findings, statistical inferences, and discusses the implications of the research for schools of business and academic accounting departments.

关键词： market orientation in education AACSB business schools business school management

H5N1禽流感病毒继续流行和变异——H5N1病毒正以不可预测的方式继续发生变异，对鸟类和人类构成严重威胁

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海峡预防医学杂志 2008年第3期14卷 95-96,F0003页

作者： robert g. webster Yi guan Malik Peiris 修文琼（译）张拥军（校）不详福建省疾病预防控制中心福州350001

高致病H5N1流感病毒的变体从亚洲传播到印度、欧洲和非洲,并持续在中国的东南部进化,产生了新的突变体,研究者担心由此引发病毒传播到各地及在全球野生鸟类中流行。到目前为止,在感染H5N1病毒的250例中,半数以上死亡。为控制病毒传播,... 详细信息

高致病H5N1流感病毒的变体从亚洲传播到印度、欧洲和非洲,并持续在中国的东南部进化,产生了新的突变体,研究者担心由此引发病毒传播到各地及在全球野生鸟类中流行。到目前为止,在感染H5N1病毒的250例中,半数以上死亡。为控制病毒传播,亚洲有2亿多的家禽被宰杀。HSN1病毒打破了有关流感病毒的一些观念,包括何种鸟可以平安地传播病毒,何种鸟中病毒能致病和致死,以及何种猫可被感染并且能够传播病毒等。一旦在一个地区内一株特别的流感病毒在鸟类中广泛传播时,对家禽扑杀的控制措施应当扩大,同时配合使用疫苗。

关键词：禽流感病毒 H5N1 流行病学鸟类

Evolution of endovascular mechanical thrombectomy for acute ischemic stroke

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World Journal of Clinical Cases 2014年第11期2卷 614-622页

作者： Colin J Przybylowski Dale Ding robert M Starke Christopher R Durst R webster Crowley Kenneth C Liu Department of Neurological Surgery University of VirginiaCharlottesvilleVA 22908United States Department of Radiology and Medical Imaging University of Virginia Charlottesville VA 22908 United States

Acute ischemic stroke(AIS) is a common medical problem associated with significant morbidity and mortality worldwide. A small proportion of AIS patients meet eligibility criteria for intravenous thrombolysis(IVT) with recombinant tissue plasminogen activator, and its efficacy for large vessel occlusion is poor. Therefore, an increasing number of patients with AIS are being treated with endovascular mechanical thrombectomy when IVT is ineffective or contraindicated. Rapid advancement in catheter-based and endovascular device technology has led to significant improvements in rates of cerebral reperfusion with these devices. Stentrievers and modern aspiration catheters have now surpassed earlier generation devices in the degree and rapidity of revascularization. This progress has been achieved with no concurrent increase in risk of major complications or mortality, both when used alone or in combination with IVT. The initial randomized controlled trials comparing endovascular therapy to IVT for AIS failed to show superior outcomes with endovascular treatment, butkey limitations of each trial may limit the significance of these results to current practice. While endovascular devices and operator experience continue to evolve, we are optimistic that this will be accompanied by improvements in patient outcomes. This review highlights the major endovascular devices used in current practice and the trials which have investigated their efficacy.

关键词： Cerebral infarction Endovascular procedures Intracranial hemorrhages Stents Stroke

Compensation of Illumination Variation and geometric Distortion in Scanning Bound Books

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仪器仪表学报 2004年第S3期 256-259+269页

作者： robert P. Loce USA webster Xerox Corporation NY 14580

Illumination variation and geometric distortion within a scan of a bound book page are well known image quality problems. The degradation of the scanned image is caused by the book page not being in uniform intimate contact with the scanning surface of the scanner. A system that corrects for those artifacts within scanned book page will be presented. In the proposed system, illumination data is first acquired through a sampling window having a long and thin geometry. From the data, foreground and background illumination distributions are defined and a spatially varying illumination gain factor is generated to normalize the illumination across the book page. The extracted illumination variation is then used to estimate the distance between book page and the scanning surface through an illumination model. Once the distance at each pixel position is determined, the optical magnification ratio at the pixel position is calculated. Based on this magnification ratio, a de-warping factor can be determined and used to locally rescale and resample the scanned image to compensate for the geometric distortion. Compared to the original scanned image, the processed image of a book page possesses a more pleasing appearance, and is easier to read and further process for purposes such as OCR.

关键词： Illumination variation geometric distortion Bound book

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野生稻种在抗秆腐病育种中的作用

广东农业科学 1983年第5期 42-44页

作者： Neil Rutger robert K.webster Richard A.Figoni 王国昌

栽培作物的野生种或它的近缘种常常用作抗病性的基因资源,当在作物中没有找到合宜基因的时候,更是如此。栽培稻中由Sclero-tium oryzae引起的真菌病害秆腐病同样存在这种情况。美国加利福尼亚州每年因秆腐病而引起水稻严重减产。虽然在... 详细信息

栽培作物的野生种或它的近缘种常常用作抗病性的基因资源,当在作物中没有找到合宜基因的时候,更是如此。栽培稻中由Sclero-tium oryzae引起的真菌病害秆腐病同样存在这种情况。美国加利福尼亚州每年因秆腐病而引起水稻严重减产。虽然在寻找秆腐病抗性的研究中,曾广泛抽样调查采自世界各地的栽培稻品种,但未有发现比加利福尼亚的特早熟品种“Colusa”具有更高抗性水平的品种。但是,“Colusa”本身仅具中等的抗性水平,为

关键词：稻种染色体组基因组栽培稻腐烂病秆腐病供体亲本

Linking historical smelter emissions across Humberside (UK) to enhanced soil metal concentrations using geostatistics and preserved environmental samples

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Chinese Journal Of geochemistry 2006年第B8期25卷 8-8页

作者： Barry g. Rawlins Andy Tye robert M. Lark Emily Hodgkinson Richard webster Kirsten E. O＇Donnell Barry Smith British geological Survey Keyworth Nottingham United Kingdom Rothamsted Research Harpenden Hertfordshire AL5 2JQ United Kingdom

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诺亚·韦伯斯特

大学英语 2017年第9期 22-26页

作者： robert McCrum 清朗

1788年7月23日,有一奇怪的游行队伍从纽约街头走过。当时正在庆祝美国新宪法的签署生效,游行者包括各色人等——专业人士、店主、体力工人。＂在行进的队伍中,＂一位参加者回忆道,＂有一个由年轻人组成的名叫‘语言学会’的团体,他们抬... 详细信息

1788年7月23日,有一奇怪的游行队伍从纽约街头走过。当时正在庆祝美国新宪法的签署生效,游行者包括各色人等——专业人士、店主、体力工人。＂在行进的队伍中,＂一位参加者回忆道,＂有一个由年轻人组成的名叫‘语言学会’的团体,他们抬着一本书穿过纽约市的大街小巷,书上题着几个大字：联邦语言。＂

关键词：韦伯斯特纽约街头诺亚签署生效游行队伍语言学会 webster 各色人等英语词典 revolution