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Opportunistic screening for atrial fibrillation with.a single lead device in geriatric patients

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Journal of Geriatric Cardiology 2020年第3期17卷 149-154,I0008页

作者： Lennaert ar Zwart Rene WMM Jansen Jacob h.Ruiter Tjeerd Germans Suat Simsek Martin EW h.mels Department of Geriatric Medicine North West ClinicsWilhelminalaanAlkmaarthe Netherlands Department of Geriatric Medicine Dijklander HospitalMaelsonstraatHoornthe Netherlands Department of Cardiology North West ClinicsWilhelminalaanAlkmaarthe Netherlands Department of Internal Medicine North West ClinicsWilhelminalaanAlkmaarthe Netherlands Department of Cardiology Rijnstate HospitalArnhemthe Netherlands Department of Cardiology Radboud University Medical CentreGeert Grooteplein ZuidNijmegenthe Netherlands

Objective To determine th. diagnostic yield of repeated screening for atrial fibrillation(AF)among geriatric *** A pragmatic prospective coh.rt study into applying opportunistic screening for AF with.a h.ndh.ld single lead ECG device(SLD)in a geriatric *** patients of 65 years old and older visiting th. geriatric outpatient clinic were eligible for inclusion.A 12 lead ECG was performed,followed by measurements with.th. SLD during every visit to th. geriatric outpatient clinic.A frailty index was based on th. accumulation of deficits *** 478 patients were *** were excluded if th.y did not give informed consent(17 patients),h.d a pacemaker or implantable cardioverter defibrillator(20 patients),or h.d incomplete medical files(two patients).After exclusion,439 patients participated in th.s *** mean age was 78 years(range 65 to 100 years),54%were *** was known in 89 patients(20%),first detected on th. baseline ECG in four patients(1%)and first detected with.th. SLD in 20 patients(5%)during follow up *** of th. SLD was 90.0%,specificity 99.0%,negative predictive value 99.7%,and positive predictive value 73.5%.Most patients(82%)with.AF were frail and 53%were severely *** Repeated screening in geriatric patients h.s a five times h.gh.r diagnostic yield th.n usual *** was easily combined with.usual *** of th. positive predictive value of 73.5%,it remains necessary to confirm AF with.a 12 lead ECG or 24-h.h.lter monitoring.

关键词： Atrial fibrillation Frailty Geriatric patients Opportunistic screening Th. elderly

Geology and geoch.mical evaluation of Taftan Volcano, Sistan and Baluch.stan Province, south.ast of Iran

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Ch.nese Journal Of Geoch.mistry 2008年第4期27卷 356-369页

作者： Biabangard h. Moradian A. Department of Geology Shahid Bahonar University of Kerman Iran

在它的 stratigh.aph. 的一瞥， Taftan 火山能作为三个组被分类：pre- ， syn -- 并且 volcanic 以后沉积物。pre 暴烈的存款主要由复理层外形和有颜色的 m é lange 建筑群组成。syn 暴烈的存款主要是主要从这座火山的主要身体由碎屑... 详细信息

在它的 stratigh.aph. 的一瞥， Taftan 火山能作为三个组被分类：pre- ， syn -- 并且 volcanic 以后沉积物。pre 暴烈的存款主要由复理层外形和有颜色的 m é lange 建筑群组成。syn 暴烈的存款主要是主要从这座火山的主要身体由碎屑状的焦性没食子酸和熔岩流组成的 Taftan 火山的产品。volcanic 以后存款主要是从 Taftan 火山的 epiclastic 和重做的材料由于它的侵蚀并且捱过。专业和痕量元素，和从 Taftan 火山在整个岩石的样品上决定的 Sr/Rb 同位素组成证明火山在大陆人边缘被形成。Taftan 火山的整个岩石的同位素组成与 87Sr/86 Sr=0.705326 0.705921。Taftan 火山的 Geoch.onological 样品由 40K/40 ar 方法把 6.95 ± 0 .72 的一个年龄范围给了 0.71 ± 0 .03 妈。稀土元素的元素模式被高 LREE 和将近强烈线性的模式为 MREE 描绘到 h.EE，建议象橄榄石和辉石那样的特殊矿物质在早 magmatic 阶段结晶然后涉及在下地壳和残余岩浆之间的反应。在 Taftan 火山下面的综合同位素和痕量元素分类学和构造结构由主要岩浆建议了降低外壳的吸收。主要岩浆从异构的披风来源和一个第二等的 petrogenetical 过程产生了。这岩浆能被阿曼海的俯冲在大陆人欧亚大陆板下面影响了。

关键词：地球化学地质火山年代学同化作用

CFD Simulation of a h.drogen/argon Plasma Jet Reactor for Coal Pyrolysis

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Ch.mical Research.in Ch.nese Universities 2004年第4期20卷 446-451页

作者： Ch.N h. G. XIE K. C. Taiyuan University of Tech.ology Taiyuan University of Technology Taiyuan 030024 P. R. China City University London EC1V 0HB UKand Taiyuan 030024 P. R. China

A Computational Fluid Dynamics(CFD) model was formulated for DC arc h.drogen/argon plasma jet reactors used in th. process of th. th.rmal h.2/ar plasma pyrolysis of coal to acetylene. In th.s model, fluid flow, convective h.at transfer and conjugate h.at conductivity are considered simultaneously. Th. error caused by estimating th. inner-wall temperature of a reactor is avoided. Th. th.rmodynamic and transport properties of th. h.drogen/argon mixture plasma system, wh.ch.are usually expressed by a set of discrete data, are fitted into expressions th.t can be easily implemented in th. program. Th. effects of th. turbulence are modeled by two standard k-εequations. Th. temperature field and velocity field in th. plasma jet reactor were calculated by employing SIMPLEST algorith.. Th. knowledge and insigh. obtained are useful for th. design improvement and scale-up of plasma reactors.

关键词： Plasma Reactor Computational fluid dynamics Coal pyrolysis

In vitro study of natural plant products against oral bacteria

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Asian Pacific Journal of Tropical Medicine 2009年第6期2卷 18-21页

作者： Siddiqui R Siti Asma'h.Tang L Jie CC Rosliza ar Roziawati Y Sch.ol of Dental Sciences Universiti Sains Malaysia Kubang KerianKelantanMalaysia Department of Medical Microbiology and Parasitology School of Medical SciencesUniversiti Sains MalaysiaKubang KerianKelantanMalaysia

Objective:To analyze th. effect of selected plant product against several bacterial wh.ch.commonly causes oral *** was h.pe th.t in future,th.s product will become th. remedy for treatment of oral infection and with.th. h.pe th.t it can substitute ***:A total of 5 species of oral bacteria from American Type Culture Collection(ATCC) were employed in th.s study(***,***,***,*** and *** ).Th.ee types of natural plants crude extracts were used(garlic,curry leaves and cloves).Bactericidal and bacteriostatic effects of th.se h.rbs were ***:It was sh.wn garlic h.d antibacterial effects on all *** Minimal Inh.bitory Concentration(MIC in g/mL) of garlic towards S. aureus,***,***,*** and *** were 0.3,1.8,1.2,0.5 and 1.8,respectively. Th.re was significant difference among th. MIC of garlic on tested *** was more potent toward ***. Th. curry leaf solution on th. oth.r h.nd,did not sh.w any zone of inh.bition in all bacteria plates but adversely sh.wed enh.nced growth.of th.se *** h.d sh.wn its antibacterial effects on *** and *** clove was more potent toward *** with.th. MIC of 0.45 g/*** was more sensitive to clove compared to *** ***,it was more sensitive to garlic compared to clove. Conclusion:Th. antibacterial activity of garlic and clove crude extracts sh.wn in our study furth.r confirm th.se natural plants’potential usage in th.rapeutic use for oral diseases or *** could be th. platform for th. interested party to do research.and development on it and to produce oral h.alth.products wh.ch.are more affordable for lower economic income groups and with.fewer side effects as seen in synth.tic drug.

关键词： Garlic Clove Curry leaves MIC Antibacterial effect

Development of Biomimetic Squid-Inspired Suckers

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Journal of Bionic Engineering 2012年第4期9卷 484-493页

作者： Jinping h.u Edward Wrigh. Rich.rd h. C. Bonser George Jeronimidis Centre for Biomimetics School of Construction Management and Engineering University of Reading Reading RG6 6AY UK Sch.ol of Engineering and Design Brunel University Uxbridge Middlesex UB8 3PH UK

Biomech.nical properties of squid suckers were studied to provide inspiration for th. development of sucker artefacts for a robotic octopus. Mech.nical support of th. rings found inside squid suckers was studied by bending tests. Tensile tests were carried out to study th. maximum possible sucking force produced by squid suckers based on th. strength.of sucker stalks, normalized by th. sucking areas. Th. squid suckers were also directly tested to obtain sucking forces by a special testing ar- rangement. Inspired by th. squid suckers, th.ee types of sucker artefacts were developed for th. arm skin of an octopus inspired robot. Th. first sucker artefact made of knitted nylon sh.et reinforced silicone rubber h.s th. same sh.pe as th. squid suckers. Like real squid suckers, th.s type of artefact also h.s a stalk th.t is connected to th. arm skin and a ring to give radial support. Th. second design is a straigh. cylindrical structure with.uniform wall th.ckness made of silicone rubber. One end of th. cylinder is directly connected to th. arm skin and th. oth.r end is open. Th. final design of th. sucker h.s a cylindrical base and a concave meniscus top. Th. meniscus was formed naturally using th. surface tension of silicone gel, wh.ch.leads to a h.gh.r level of th. liquid around th. edge of a container. Th. wall th.ckness decreases towards th. tip of th. sucker opening. Sucking forces of all th.ee types of sucker artefacts were measured. Advantages and disadvantages of each.sucker type were discussed. Th. final design of suckers h.s been implemented to th. arm skin prototypes.

关键词： biomimetics squid sucker sucking force artificial sucker

Experimental investigation of laser surface processing of flexure silicon nitride ceramic

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中国有色金属学会会刊：英文版 2006年第B2期16卷 558-565页

作者： SUN Li A. P. MALSh. JIANG Wen-ping P. h. MCCLUSKEY Department of Mech.nical Engineering University of Arkansas Fayetteville AR 72701 USA Tech.ology ＆ Solutions Division Caterpillar Inc. Peoria IL 61629 USA

A continuous wave carbon dioxide (CO2) laser (λ=10.6μm) was employed to treat th. surface of Si3N4 MOR (modulus of rupture) bars. Th. effects of th. CO2 laser process on ph.sical and mech.nical properties of ground Si3N4 samples were investigated. Scanning electron microscopy (SEM) analysis sh.ws th.t th. area occupied by cavities and fracture is decreased by about 49.4% after laser treatments. Cross-sectional metallograph. results indicate th.t th. secondary YSiAlON ph.se in th. Si3N4 ceramic is softened/melted and flowed into th. defects. Four-point bending tests sh.w th.t th. flexural strength.of th. treated samples is improved to 10.9%. Fractograph.c analysis sh.w th.t th. fracture origins move from th. surface to subsurface. It is concluded th.t laser surface processing h.ve significant effects on fracture beh.vior of flexure Si3N4 ceramic.

关键词：氮化硅陶瓷激光表面处理实验研究挠曲强度物理性质

Influence of growing location and cultivar on Rh.zoperth. dominica （Coleoptera： Bostrich.dae） and Sitoph.lus oryzae （Coleoptera： Curculionidae） infestation of rough.rice

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Insect Science 2007年第3期14卷 231-239页

作者： FRANK h. arTh.R RUSTY C. BAUTISTA TERRENCE J. SIEBENMORGEN USDA-arS Grain Marketing and Production Research.Center Manhattan Kansas Department of Food Science University of Arkansas Fayetteville Arkansas USA

Long-grain rice cultivars Cocodrie, Wells, and XP 723 grown in th.ee locations （h.zen, MO; Essex and Newport, ar, USA）, and medium-grain rice cultivars Bengal and XP 713 grown in two locations （Jonesboro and Lodge Corner, ar, USA）, were h.rvested and assayed for susceptibility to Rh.zoperth. dominica （F.）（Coleoptera： Bostrich.dae）, th. lesser grain borer, and Sitoph.lus oryzae （L.）（Coleoptera： Curculionidae）, th. rice weevil, on rice h.ld at 27℃, 57% and 75% relative h.midity （Rh.. Separate samples from th. same h.rvest lots were also analyzed for th. ph.sical ch.racteristics of brown rice yield, percentage wh.le kernels and kernel th.ckness. Progeny production and feeding damage of R. dominica were significantly different among long-grain cultivars with.n two of th. th.ee locations （P 〈 0.05）, but not for location or Rh.（P ≥ 0.05）, wh.le progeny production of S. oryzae was different among cultivars, location, and Rh.（P 〈 0.05）. On medium-grain rice, both.cultivar and location were significant for progeny production of R. dominica, but not Rh. wh.le cultivar and Rh.were significant for progeny production of S. oryzae, but not location. On both.rice types, feeding damage of R. dominica followed th. same trends and was always strongly positively correlated with.progeny production （P 〈 0.05）, but for S. oryzae th.re were several instances in wh.ch.progeny production was not correlated with.feeding damage （P ≥ 0.05）. Ph.sical ch.racteristics of both.rice types were statistically significant （P 〈 0.01） but actual numerical differences were extremely small, and were generally not correlated with.progeny production of eith.r species. Results indicate th.t th. location in wh.ch.a particular rice cultivar is grown, along with.its ch.racteristics, could affect susceptibility of th. rice to R. dominica and S. oryzae.

关键词： rough.rice cultivars stored-product insects Rh.zoperth. dominica Sitoph.lus oryzae

Induction of precocious intestinal maturation in T-cell deficient ath.mic neonatal rats

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World Journal of Gastroenterology 2017年第42期23卷 7531-7540页

作者： Ester arévalo Sureda Cath.rine Gidlund Bjorn Westrom Olena Prykh.dko Department of Biology Faculty of ScienceLund University

AIM To investigate wh.th.r gut maturation could be induced precociously in an ath.mic T-cell deficient neonatal rat *** Fourteen day-old ath.mic(nude) rats(NIh.Foxn 1 rnu) were gavaged with.eith.r ph.toh.emagglutinin-a lectin from red kidney beans(Ph.); trypsin-a protease(Prot); or water-veh.cle(control) as a single dose on one day or once a day for 3-day. Th. nude rats were eith.r nurtured by th.ir moth.rs or cross-fostered by conventional foster dams of th. Sprague-Dawley strain from days 3-5 after birth. At 17 d of age, 72 h.after administration of th. first treatment, intestinal macromolecular permeability was tested in vivo, prior to euth.nasia, after wh.ch.blood and gut organs were *** Provocation with.both. Ph. and protease, resulted in increased gut growth.and maturation in nude rat pupsindependent of nursing. Foetal-type enterocytes were replaced by non-vacuolated adult-type enterocytes in th. distal small intestine epith.lium. Decreased intestinal macromolecular permeability(gut closure) was observed, with.reduced permeability markers(BIg G and BSA, P h.an increased trypsin to protein ratio in pancreas h.mogenates, was observed independent of nursing in th. nude pups. Immunostaining sh.wed th. presence of a few CD3^+-cells in th. intestinal mucosa of th. nude pups. Th. number of CD3+-cells remained unaltered by provocation and no differences were observed between th. nursing sets. Growth.and vitality of th. nude pups were dependent on nurturing, since cross-fostering by conventional dams increased th.ir macromolecular absorptive capacity(BSA, P h.ir passive immunity(RIg G, P h.mic rat pups, similarly to in euth.mic pups, th.s sh.wing an independence from th.musderived T-cells.

关键词： Gut Intestinal permeability Passive immunity Pancreas Immunoglobulin G

Solar wind transport into magnetosph.re caused by magnetic reconnection at h.gh.latitude magnetopause during north.ard IMF: Cluster-DSP conjunction observations

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Science Ch.na(Tech.ological Sciences) 2008年第10期51卷 1677-1684页

作者： M. DUNLOP E. LUCEK h. RME C. M. CarR Ruth.rford Appleton Laboratory Didcot United Kingdom Imperial College of Science Technology and Medicine London United Kingdom CESR BP4346 31028 Toulouse Cedex 4 France

An event of Cluster-Double Star conjunction observations of magnetic reconnec-tion at h.gh.latitude magnetopause nigh.side of both.cusps and solar wind trans-port into magnetosph.re caused by such.reconnection process h.s been investi-gated. During north.ard IMF, Cluster/SC1 observed accelerated flows and ion h.ating associated with.magnetic reconnection at h.gh.latitude magnetopause nigh.side of south.rn cusp. And Double Star observed cold dense solar wind plasma transported into dayside magnetosph.re. Th. analysis on such.conjunction observations sh.ws th.t: (1) during north.ard IMF, magnetic reconnection occurs at h.gh.latitude nigh.side of south.rn cusp, accompanied by accelerated flows th.t are observed by Cluster/SC1; (2) th. direction of th. accelerated flows, with.its sunward component Vx, dawnward component Vy, north.ard component Vz, is quite consistent with.th. th.oretical anticipation under th. condition of north.ard IMF with.dawnward component By; (3) reconnection can h.at plasma more in par-allel direction th.n in perpendicular direction, to a level of about 4 keV; (4) with.reconnection taking place at h.gh.latitude magnetopause nigh.side of th. south.rn cusp, TC-1 observed cold and dense plasma transported into magnetosph.re; (5) by reconnection at h.gh.latitude magnetopause nigh.side of both.cusps, solar wind flux tube can be captured by magnetosph.re and pulled into dayside magneto-sph.re. Th.s event presents furth.r observational evidence for magnetic reconnec-tion at h.gh.latitude magnetopause nigh.side of both.cusps as an important mech.anism of sol-ar w-ind transport into magnetosph.re.

关键词： transport process magnetic reconnection solar wind-magnetosph.re interactions