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42篇 您的检索式:作者名="S.Smith"
    题名 作者 年代 出处 被引量
1中国19个狂犬病病毒街毒分离株N基因的序列分析显示文摘测定了 30年来从不同动物中分离的 19个中国狂犬病病毒街毒株N基因的部分核酸序列 ,并对其核苷酸差异做了比较分析。可将中国狂犬病病毒街毒株分为 4个组群 ,各组间的同源性为 83 45 %~ 88 6 2 %。除广西地区分离的狂犬病病毒街毒株彼此差异较大外 ,其余街毒株的地理分布与其N基因核酸序列差异的距离是密切相关的 ,基本上可按其地理分布分为东。徐葛林 Li Ku 吴杰 C.A.De Mattos 郑新雄 薛经刚 胡巧玲 刘锦彦 朱家鸿 C.C.De Mattos J S.Smith 2002病毒学报2002,18,1:46
2HPV Infection among Uygur Women in a Rural Area of Hetian Prefecture,Xinjiang Uygur Autonomous Region, China显示文摘It is not clear how HPV infection is prevalent among Uygur women in Xinjiang Uygur Autonomous Region,China and whether the distribution of HPV infection is related with cervical intraepithelial neoplasia (CIN) incidence among them.A study including 883 Uygur women were conducted from 2006 to 2007 in Hetian Prefecture,Xinjiang Uygur Autonomous Region,China.Exfoliated cells were collected from the cervix for HPV DNA testing.Cervical samples wereSulaiya HUSAIYIN Mayinuer NIYAZI WANG Li hong WANG Jun Jie WANG Jian Bing Ayeti SIMAYI WANG Lin Zumurelaiti AINIWAER MA Chun Hua Jennifer S.SMITH 2013Biomedical and Environmental Sciences2013,26,11:8
3Accuracy of triage strategies for human papillomavirus DNA-positive women in low-resource settings:A cross-sectional study in China显示文摘Objective: Care HPV is a human papillomavirus(HPV) DNA test for low-resource settings(LRS).This study assesses optimum triage strategies for care HPV-positive women in LRS.Methods: A total of 2,530 Chinese women were concurrently screened for cervical cancer with visual inspection with acetic acid(VIA),liquid-based cytology and HPV testing by physician-and self-collected care HPV,and physician-collected Hybrid Capture 2(HC2).Screen-positive women were referred to colposcopy with biopsy and endocervical curettage as necessary.HPV-positivity was defined as ≥1.0 relative light units/cutoff(RLU/CO) for both care HPV and HC2.Primary physician-HC2,physician-care HPV and self-care HPV and in sequential screening with cytology,VIA,or increased HPV test-positivity performance,stratified by age,were assessed for cervical intraepithelial neoplasia(CIN) grade 2/3 or worse(CIN2/3+) detection.Results: The sensitivities and specificities of primary HPV testing for CIN2+ were: 83.8%,88.1% for physiciancare HPV; 72.1%,88.2% for self-care HPV; and 97.1%,86.0% for HC2.Physician-care HPV test-positive women with VIA triage had a sensitivity of 30.9% for CIN2+ versus 80.9% with cytology triage.Self-care HPV testpositive women with VIA triage was 26.5% versus 66.2% with cytology triage.The sensitivity of HC2 test-positive women with VIA triage was 38.2% versus 92.6% with cytology triage.The sensitivity of physician-care HPV testing for CIN2+ decreased from 83.8% at ≥1.0 RLU/CO to 72.1% at ≥10.00 RLU/CO,while the sensitivity of selfcare HPV testing decreased from 72.1% at ≥1.0 RLU/CO to 32.4% at ≥10.00 RLU/CO; similar trends were seen with age-stratification.Conclusions: VIA and cytology triage improved specificity for CIN2/3 than no triage.Sensitivity with VIA triage was unsuitable for a mass-screening program.VIA provider training might improve this strategy.Cytology triage could be feasible where a high-quality cytology program exists.Triage of HPV test-positive women by increased test positivity cutoff adds another LRS triage option.Margaret Wang Shangying Hu Shuang Zha o Wenhua Zhang Qinjing Pan Xun Zhang FengChen Jinxiu Han Junfei Ma Jennifer S.Smith Youlin Qiao Caihong Zhou Fanghui Zhao 2017Chinese Journal of Cancer Research2017,29,6:6
4大陆漂移、高原隆升与新生代亚-非-澳洲季风区和干旱区演化显示文摘亚-非-澳洲季风区和干旱区的面积约占这三大洲陆地总面积的60%以上.基于新生代以来亚-非-澳洲季风和干旱环境以及东半球海陆分布和青藏高原等地形显著变化的地质事实,利用全球海-气耦合模式开展新生代5个特征地质时期气候模拟试验,系统探讨了新生代亚-非-澳洲季风区和干旱区形成演化及其受大陆漂移和高原隆升的影响.结果表明,亚-非-澳洲季风区和干旱区形成的时间和原因明显不同.北非与南非季风在古新世中期已经存在,南亚次大陆季风在始新世印度大陆移入北半球热带后开始出现,而东亚和澳大利亚北部季风在中新世才建立.北非、南非、南亚和澳大利亚热带季风的建立是大陆漂移的位置和热带辐合带季节性迁移共同决定的,而青藏高原的位置和高度则是东亚季风建立的关键因素.北非、南非、亚洲和澳大利亚副热带干旱区的存在取决于大陆的位置和行星尺度副热带高压的控制,阿拉伯半岛和西亚干旱区的发展与区域尺度海陆变迁,特别是古特提斯海的退缩密切相关,而亚洲内陆中纬度干旱区的形成则是青藏高原隆升的结果.这一研究揭示了地球构造边界条件在地质时期区域气候环境形成演化中的重要作用.刘晓东 Buwen DONG Zhi-Yong YIN Robin S.SMITH 郭庆春 2019中国科学:地球科学2019,49,7:5
5压缩机使用矿物润滑油着火和爆炸的危险显示文摘1.导言 矿物润滑油不是很易燃的材料,但在少数环境中,能够起燃,引起着火,并在某些场合产生剧烈爆炸。这些可分成以下几类:液压系统着火;隔热套着火;曲轴箱爆炸;空气压缩机着火和气动系统爆炸。 图1表示矿物油蒸气和空气混和物在大气压下的可燃区。应当注意,油不是一定得以蒸气状态存在。由油蒸汽冷凝产生的极细微滴 (油雾)的混和物,也是可燃的。图1是示意图,其值不必太精确读出,因为随油品级和粘度的不同会产生微小的变化,但总的概念保持一致。S.Smith 孙开滨 1992压缩机技术1992,,5:5
6Continental drift, plateau uplift, and the evolutions of monsoon and arid regions in Asia, Africa, and Australia during the Cenozoic显示文摘Monsoon and arid regions in the Asia-Africa-Australia(A-A-A) realm occupy more than 60% of the total area of these continents. Geological evidence showed that significant changes occurred to the A-A-A environments of the monsoon and arid regions, the land-ocean configuration in the Eastern Hemisphere, and the topography of the Tibetan Plateau(TP) in the Cenozoic. Motivated by this background, numerical experiments for 5 typical geological periods during the Cenozoic were conducted using a coupled ocean-atmosphere general circulation model to systemically explore the formations and evolutionary histories of the Cenozoic A-A-A monsoon and arid regions under the influences of continental drift and plateau uplift. Results of the numerical experiments indicate that the timings and causes of the formations of monsoon and arid regions in the A-A-A realm were very different. The northern and southern African monsoons existed during the mid-Paleocene, while the South Asian monsoon appeared in the Eocene after the Indian Subcontinent moved into the tropical Northern Hemisphere. In contrast, the East Asian monsoon and northern Australian monsoon were established much later in the Miocene. The establishment of the tropical monsoons in northern and southern Africa, South Asia, and Australia were determined by both the continental drift and seasonal migration of the Inter-Tropical Convergence Zone(ITCZ), while the position and height of the TP were the key factor for the establishment of the East Asian monsoon. The presence of the subtropical arid regions in northern and southern Africa,Asia, and Australia depended on the positions of the continents and the control of the planetary scale subtropical high pressure zones, while the arid regions in the Arabian Peninsula and West Asia were closely related to the retreat of the Paratethys Sea. The formation of the mid-latitude arid region in the Asian interior, on the other hand, was the consequence of the uplift of the TP.These results from this study provide insight to the important roles played by the earth's tectonic boundary conditions in the formations and evolutions of regional climates during geological times.Xiaodong LIU Buwen DONG Zhi-Yong YIN Robin S.SMITH Qingchun GUO 2019Science China Earth Sciences2019,62,7:5
7An evidence‐based causative classification system for acute ischemic stroke显示文摘HakanAy Karen L.Furie AneeshSinghal Wade S.Smith A. GregorySorensen Walter J.Koroshetz 2005Ann Neurol2005,,5:2
8Abundance of six tetracycline resistance genes in wastewater lagoons at cattle feedlots with different antibiotic use strategies显示文摘NicholasPeak Charles W.Knapp Richard K.Yang Margery M.Hanfelt Marilyn S.Smith Diana S.Aga David W.Graham 2006Environmental Microbiology2006,,1:1
9Water quality impacts of small-scale hydromodification in an urban stream in Connecticut, USA显示文摘Introduction:Construction activities in and along urban streams increase the sediment input into surface waters,causing an overall decline in water quality and aquatic ecosystems.In this case study,we investigate the water quality impacts of local hydromodification in an urban stream(discharge 0.4 m^(3)/s).At the site of interest,workers removed a stream crossing consisting of an embankment with culverts and replaced it with a small bridge(single span of 25 m)in an effort to improve flow capacity.Methods:Water samples were taken at four sites along the North Branch Park River in Connecticut,Northeastern United States.Turbidity and dissolved oxygen(DO)were measured in situ,and nitrate and total phosphorus(TP)were measured in the laboratory.Benthic macroinvertebrate samples were also collected and analyzed for taxon richness and Shannon-Weaver species diversity.Data were compared between upstream and downstream sites and before,during,and after hydromodification.We used one-way ANOVA combined with the post hoc Turkey test to derive statistical significance.Results:During construction,turbidity increased temporarily by 60.9%[from 2.48 Nephelometric Turbidity Units(NTU)over ambient to 4.00 NTU].Once construction was completed,DO increased locally from 11.0 to 13.0 mg/L.Benthic macroinvertebrate taxon richness and species diversity declined by 61.6 and 32.6%respectively,with no recovery observed in the year following construction.Water quality was only affected within 50 m downstream.Nitrate and TP concentrations were unaffected.Conclusions:Small-scale hydromodification temporarily increased the turbidity as a result of increased sediment input,approaching the maximum level for clean water(5 NTU).Benthic macroinvertebrate communities declined in the immediate downstream vicinity of construction but are expected to recover soon given that turbidity recovered to pre-construction levels,and DO increased.These outcomes emphasize that environmental assessment is important not only for large-scale hydromodification but also for smaller scale stream modifications.Bin Zhu Daniel S.Smith Anthony P.Benaquista Dylan M.Rossi Betsy M.Kadapuram Man Lok Yu Andrew S.Partlow Nathan R.Burtch 2018Ecological Processes2018,7,1:1
10Study of the deformed halo nucleus^(31)Ne with Glauber model based on microscopic self-consistent structures显示文摘The exotic deformed nucleus^(31)Ne is studied with an approach that combines self-consistent structure and reaction theories.The deformed relativistic Hartree-Bogoliubov theory in continuum(DRHBc)is utilized to demonstrate that deformation and pairing correlations give rise to a halo structure with a large-amplitude p-wave configuration in^(31)Ne.Then the valence nucleon wave functions and angle-averaged density distributions of ^(30)Ne from this theory are used as input for the Glauber reaction model to study the observables of neutron-rich neon isotopes to search halo signatures.With NL1 effective interaction,our predictions of the reaction cross sections for these exotic neon isotopes on a carbon target can better reproduce the experimental data than those from the relativistic mean field model for a spherical shape with resonances and pairing correlation contributions,and are roughly 3.3%(∼50 mb)larger than those with Gaussian function-fitted densities of the core nuclei.The calculated one-neutron removal cross section at 240 MeV/nucleon,and the inclusive longitudinal momentum distribution of the 30Ne residues from the^(31)Ne breakup reaction are largely improved over previous theoretical predictions and agree well with data.These reaction evalu-ations indicate a dilute density distribution in coordinate space and are a canonical signature of a halo structure.Moreover,our predictions with the NL3 and PK1 effective interactions give slightly better descriptions of reaction observables for exotic neon isotopes.Shi-Yi Zhong Shi-Sheng Zhang Xiang-Xiang Sun Michael S.Smith 2022Science China(Physics,Mechanics & Astronomy)2022,65,6:1
11A paradox of learning in project cycle management and the role of organizational culture显示文摘Biggs S S.Smith 0,,10:1
12Techniques for the use of long slender end mills in high-speed milling显示文摘J.Tlusty S.Smith W.R.Winfough 0,,01:1
13Estimation with lossy measurements:Jumpestimators for jump systems显示文摘S.Smith P.Seiler 0,,12:1
14What interventions should we add to weight reducing diets in adults with obesity? A systematic review of randomized controlled trials of adding drug therapy, exercise, behaviour therapy or combinations of these interventions显示文摘A.Avenell T. J.Brown M. A.McGee M. K.Campbell A. M.Grant J.Broom R. T.Jung W. C. S.Smith 2004Journal of Human Nutrition and Dietetics2004,,4:1
15粘土地基上粒料路堤的深层破坏及稳定性分析显示文摘一、前言常常有必要在饱和粘土地基上修建粒料路堤。在实际中假定,施工结束时地基还未开始固结,因而还不具有强度。然而,当这些力处于最大的状态时,才趋于造成破坏。此时,路堤抗深层破坏的稳定性最小。通常在设计中,采用地基的不排水抗剪强度(即Cu和φu=0),并依据“整体分析”来评价其稳定性。Dov Leshchinsky Deirdre S.Smith 张德祥 1991路基工程1991,0,6:1
16Long‐term weight loss effects on all cause mortality in overweight/obese populations显示文摘A. S.Poobalan L. S.Aucott W. C. S.Smith A.Avenell R.Jung J.Broom 2007Obesity Reviews2007,,6:1
17The localmean decomposition sad its application to EEG perception data显示文摘Jonathan S.Smith 0,,05:1
18Assessment of symptoms during gastric emptying scintigraphy to correlate symptoms to delayed gastric emptying显示文摘U.Khayyam P.Sachdeva J.Gomez Z.Ramzan M. S.Smith A. H.Maurer R. S.Fisher H. P.Parkman 2010Neurogastroenterology & Motility2010,,5:1
19Effects of weight loss in overweight/obese individuals and long‐term lipid outcomes – a systematic review显示文摘A.Poobalan L.Aucott W. C. S.Smith A.Avenell R.Jung J.Broom A. M.Grant 2004Obesity Reviews2004,,1:1
20Ciprofloxacin suppresses bacterial overgrowth, increases fasting insulin but does not correct low acylated ghrelin concentration in non‐alcoholic steatohepatitis显示文摘A.SAJJAD M.MOTTERSHEAD W. K.SYN R.JONES S.SMITH C. U.NWOKOLO 2005Alimentary Pharmacology & Therapeutics2005,,:1
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