检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

一般人群中腹型肥胖和新发心房颤动的关系

中华高血压杂志 2017年第9期25卷 830-830页

作者：刘莉叶鹏 Baek YS Yang PS Kim TH Uhm jS Park j Pak hn Lee MH joung B

已知身高越高,体质量越大,心房颤动发生风险越高。然而,心房颤动的风险是否与腹型肥胖有关尚不清楚。Baek等纳入韩国国民健康保险计划全国样本队列中基线无心房颤动的成人501 690人,年龄（47.6±14.3）岁,女性250 664人,占50%。测定其... 详细信息

已知身高越高,体质量越大,心房颤动发生风险越高。然而,心房颤动的风险是否与腹型肥胖有关尚不清楚。Baek等纳入韩国国民健康保险计划全国样本队列中基线无心房颤动的成人501 690人,年龄（47.6±14.3）岁,女性250 664人,占50%。测定其体质量指数（body mass index,BMI）和腰围,将BMI〈18．5kg／m2定义为低体质量，18．5～〈25．0kg／m2定义为正常体质量；25．0～〈30．0kg／m2定义为超重；≥30．0kg／m2定义为肥胖；将腰围≥90（男性）和≥80cm（女性）定义为腹型肥胖。

关键词：心房颤动腹型肥胖体质量保险计划国民健康基线队列腰围样本 body

High-resolution two-photon polymerization:the most versatile technique for the fabrication of microneedle arrays

在线全文

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2021年第5期7卷 1-17页

作者： Zahra Faraji Rad Philip D.Prewett Graham j.Davies School of Mechanical and Elearical Engineering University of Southern QueenslandSpringfield CentralQLD 4300Australia Department of Mechanical Engineering University of BirminghamBirmingham B152TTUK Oxacus Ltd Dorchester-on-Thames 0X107HNUK Faculty of Engineering UNSW AustraliaKensingtonNSW 2052Australia College of Engineering and Physical Sciences School of EngineeringUniversity of BirminghamBirmingham B152TTUK

Microneedle patches have received much interest in the last two decades as drug/vaccine delivery or fluid sampling systems for diagnostic and monitoring *** are manufactured using a variety of additive and subtractive micromanufacturing *** the last decade,much attention has been paid to using additive manufacturing techniques in both research and industry,such as 3D printing,fused deposition modeling,inkjet printing,and two-photon polymerization(2PP),with 2PP being the most flexible method for the fabrication of microneedle arrays.2PP is one of the most versatile and precise additive manufacturing processes,which enables the fabrication of arbitrary three-dimensional(3D)prototypes directly from computer-aided-design(CAD)models with a resolution down to 100 *** to its unprecedented flexibility and high spatial resolution,the use of this technology has been widespread for the fabrication of bio-microdevices and bio-nanodevices such as microneedles and microfluidic *** is a pioneering transformative technology that facilitates the fabrication of complex miniaturized structures that cannot be fabricated with established multistep manufacturing methods such as injection molding,photolithography,and ***,microstructures are designed according to structural and fluid dynamics considerations rather than the manufacturing constraints imposed by methods such as machining or etching *** article presents the fundamentals of 2PP and the recent development of microneedle array fabrication through 2PP as a precise and unique method for the manufacture of microstructures,which may overcome the shortcomings of conventional manufacturing processes.

关键词： resolution needle additive

Attractivity in a Delayed Three-species Ratio-dependent Predator-prey System without Dominating Instantaneous Negative Feedback

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematicae Applicatae Sinica 2003年第2期19卷 317-332页

作者： RuiXu Lan-sunChen M.A.j.Chaplain DepartmentofMathematics MechanicalEngineeringCollegeShijiazhuang050003China InstituteofMathematics AcademyofMathematicsandSystemSciencesChineseAcademyofSciencesBeijing100080China DepartmentofMathematics UniversityofDundeeDundeeDD14HNUK

Abstract A delayed three-species ratio-dependent predator-prey food-chain model without dominating instantaneous negative feedback is investigated. It is shown that the system is permanent under some appropriate condi... 详细信息

关键词： Keywords Time delay uniform persistence global attractivity

模拟库水位变化的抗滑桩加固边坡离心模型试验研究

在线全文

学校读者我要写书评

暂无评论

岩石力学与工程学报 2009年第5期28卷 939-946页

作者：李邵军 KNAPPETT j A 冯夏庭陈静中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室湖北武汉430071 邓迪大学土木工程系苏格兰邓迪DD14HN

抗滑桩是边坡深层抗滑最为有效的措施之一,以三峡库区边坡抗滑桩加固工程为背景,利用离心模型试验手段,模拟库区蓄水和水位循环变化条件下失稳边坡的抗滑桩加固机制。详细介绍相应的离心模型试验方法,通过对一系列自然边坡和不同桩间距... 详细信息

抗滑桩是边坡深层抗滑最为有效的措施之一,以三峡库区边坡抗滑桩加固工程为背景,利用离心模型试验手段,模拟库区蓄水和水位循环变化条件下失稳边坡的抗滑桩加固机制。详细介绍相应的离心模型试验方法,通过对一系列自然边坡和不同桩间距条件下的模型试验,获得库水位变化影响下的边坡变形、破坏模式和抗滑桩受力,探讨滑坡推力的分布以及不同桩间距条件下的抗滑桩-边坡相互作用机制。测试结果表明,受抗滑桩加固的边坡在水位升降作用下仍发生一定程度的变形并产生裂缝,随着抗滑桩的直接支挡和桩后土体由于不均匀位移产生土拱效应后,边坡变形逐渐得到较好的控制。在本试验条件下,随着桩间距的增大,边坡变形总体上表现为增大趋势,但抗滑桩的受力呈现出先增大后减小的抛物线型变化形态,在某一最适桩间距情况下抗滑桩的抗滑性能得到了最充分的发挥,而滑坡推力表现出复合三角形分布特征。该研究结果为桩土相互作用和库区边坡抗滑桩加固机制分析提供了直接的试验依据,对丰富抗滑桩设计理论和库区边坡的防灾减灾研究具有较为重要的意义。

关键词：边坡工程库区边坡库水位变化抗滑桩加固离心模型试验最适桩间距

Rhizosphere microbial communities associated to rose replant disease:links to plant growth and root metabolites

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2020年第1期7卷 1031-1046页

作者： B.Yim A.Baumann G.Grunewaldt-Stöcker B.Liu L.Beerhues S.Zühlke M.Sapp j.Nesme S.j.Sørensen K.Smalla T.Winkelmann Institute of Horticultural Production Systems Leibniz Universität Hannover30419 HannoverGermany julius Kühn-Institut(jKI) Institute for Epidemiology and Pathogen Diagnostics38104 BraunschweigGermany Institute of Pharmaceutical Biology Technische Universität Braunschweig38106 BraunschweigGermany Faculty of Chemistry and Chemical Biology(CCB) Technische Universität Dortmund44227 DortmundGermany Cluster of Excellence on Plant Sciences(CEPLAS) Institute for Population GeneticsHeinrich Heine University40225 DüsseldorfGermany Section of Microbiology Department of BiologyUniversity of Copenhagen2100 CopenhagenDenmark

Growth depression of Rosa plants at sites previously used to cultivate the same or closely related species is a typical symptom of rose replant disease(RRD).Currently,limited information is available on the causes and the etiology of RRD compared to apple replant disease(ARD).Thus,this study aimed at analyzing growth characteristics,root morphology,and root metabolites,as well as microbial communities in the rhizosphere of the susceptible rootstock Rosa corymbifera‘Laxa’grown in RRD-affected soil from two sites(Heidgraben and Sangerhausen),either untreated or disinfected byγ-*** a greenhouse bioassay,plants developed significantly more biomass in theγ-irradiated than in the untreated soils of both *** plant metabolites detected in ***‘Laxa’roots were site-and *** aloesin was recorded in significantly higher concentrations in untreated than inγ-irradiated soils from Heidgraben,the concentrations of phenylalanine were significantly lower in roots from untreated soil of both *** microbial communities of 8-week-old plants were studied by sequencing of 16S rRNA,ITS,and cox gene fragments amplified from total community *** by microscopic observations,sequences affiliated to the bacterial genus Streptomyces and the fungal genus Nectria were identified as potential causal agents of RRD in the soils *** relative abundance of oomycetes belonging to the genus Pythiogeton showed a negative correlation to the growth of the ***,the RRD symptoms,the effects of soil treatments on the composition of the rhizosphere microbial community revealed striking similarities to findings related to ARD.

关键词： soil roots plant

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

非恒定流驱动下床面形态变化特征

水科学进展 2021年第5期32卷 751-758页

作者：王乐 Alan j S Cuthbertson 张尚弘王永强华北电力大学水利与水电工程学院北京102206 School of Science and Engineering University of DundeeDundee DD14HNUK 长江科学院水资源综合利用研究所湖北武汉430010

为深入认识非恒定流驱动下床面形态的演变规律及尺度变化趋势,采用水泵控制系统生成了一系列历时与洪峰流量不同的洪水过程来冲刷由粗沙组成的实验动床(中值粒径d 50=1.95 mm),研究中运用非恒定流的形态、非恒定性及水流做功参数来量化... 详细信息

为深入认识非恒定流驱动下床面形态的演变规律及尺度变化趋势,采用水泵控制系统生成了一系列历时与洪峰流量不同的洪水过程来冲刷由粗沙组成的实验动床(中值粒径d 50=1.95 mm),研究中运用非恒定流的形态、非恒定性及水流做功参数来量化洪水过程;统计分析河床高程数据得到床面形态的波长、波高及陡度。实验结果表明:在不同尺度的非恒定流洪水作用下,实验动床表面分别形成了沙垄、交错边滩以及介于两者之间的过渡型床面形态;洪水的非恒定性对床面形态尺度的影响最大,其次是水流做功参数,而非恒定流的形态影响较为微弱;在此基础上构建了用于描述非恒定流驱动条件与床面形态尺度响应的定量关系。

关键词：非恒定流洪水床面形态

Study of BESIII trigger efficiencies with the 2018 j/ψ data

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2021年第2期45卷 48-55页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht R.Aliberti A.Amoroso M.R.An Q.An X.H.Bai Y.Bai O.Bakina R.Baldini Ferroli I.Balossino Y.Ban K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi j.Bloms A.Bortone I.Boyko R.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin j.F.Chang W.L.Chang G.Chelkov D.Y.Chen G.Chen H.S.Chen M.L.Chen S.j.Chen X.R.Chen Y.B.Chen Z.j Chen W.S.Cheng G.Cibinetto F.Cossio X.F.Cui H.L.Dai X.C.Dai A.Dbeyssi R.E.de Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding C.Dong j.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du Y.L.Fan j.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng j.H.Feng M.Fritsch C.D.Fu Y.Gao Y.Gao Y.Gao Y.G.Gao I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu S.Gu Y.T.Gu C.Y Guan A.Q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris H Hüsken K.L.He F.H.Heinsius C.H.Heinz T.Held Y.K.Heng C.Herold M.Himmelreich T.Holtmann Y.R.Hou Z.L.Hou H.M.Hu j.F.Hu T.Hu Y.Hu G.S.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain W.Ikegami Andersson W.Imoehl M.Irshad S.jaeger S.janchiv Q.ji Q.P.ji X.B.ji X.L.ji H.B.jiang X.S.jiang j.B.jiao Z.jiao S.jin Y.jin T.johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth W.Kühn j.j.Lane j.S.Lange P.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.j.Li j.L.Li j.Q.Li j.S.Li Ke Li L.K.Li Lei Li P.R.Li S.Y.Li W.D.Li W.G.Li X.H.Li X.L.Li Z.Y.Li H.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang L.Z.Liao j.Libby C.X.Lin B.j.Liu C.X.Liu D.Liu F.H.Liu Fang Liu Feng Liu H.B.Liu H.M.Liu Huanhuan Liu Huihui Liu j.B.Liu j.L.Liu j.Y.Liu K.Liu K.Y.Liu Ke Liu L.Liu M.H.Liu P.L.Liu Q.Liu Q.Liu S.B.Liu Shuai Liu T.Liu W.M.Liu X.Liu Y.Liu Y.B.Liu Z.A.Liu Z.Q.Liu X.C.Lou F.X.Lu H.j.Lu j.D.Lu j.G.Lu X.L.Lu Y.Lu Y.P.Lu C.L.Luo M.X.Luo b P.W.Luo T.Luo X.L.Luo S Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China GIBudker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA (A)INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly (A)INFN Sezione di Ferrara I-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave54BUlaanbaatar 13330Mongolia jilin University Changchun 130012China johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia justus-Liebig-Universitaet Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning Normal Unive

Using a dedicated data sample taken in 2018 on the j/ψpeak,we perform a detailed study of the trigger efficiencies of the BESIII *** efficiencies are determined from three representative physics processes,namely Bhabha scattering,dimuon production and generic hadronic events with charged *** combined efficiency of all active triggers approaches 100%in most cases,with uncertainties small enough not to affect most physics analyses.

关键词： BESIII trigger efficiency Bhabha dimuon hadronic events

Effects of food quality on trade-offs among growth, immunity and survival in the greater wax moth Galleria mellonella

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2015年第3期22卷 431-439页

作者： Indrikis Krams Sanita Kecko Katariina Kangassalo Fhionna R. Moore Eriks jankevics Inna Inashkina Tatjana Krama Vilnis Lietuvietis Laila Meija Markus j. Rantala Institute of Systematic Biology University of Daugavpils 5401 Daugavpils Latvia Institute of Ecology and Earth Sciences University of Tartu 51014 Tartu Estonia Department of Biology Section of Ecology University of Turku 20014 Turku Finland School of Psychology University of Dundee Dundee DD1 4HN UK Latvian Biomedical Research and Study Centre 1067 RTga Latvia Department of Plant Protection Institute of Agricultural and Environmental Sciences Estonian University of Life Science Tartu Estonia Riga Stradins University 1007 Riga Latvia

The resources available to an individual in any given environment are finite, and variation in life history traits reflect differential allocation of these resources to competing life functions. Nutritional quality of food is of particular importance in these life history decisions. In this study, we tested trade-offs among growth, immunity and survival in 3 groups of greater wax moth （Galleria mellonella） larvae fed on diets of high and average nutritional quality. We found rapid growth and weak immunity （as measured by encapsulation response） in the larvae of the high-energy food group. It took longer to develop on food of average nutritional quality. However, encapsulation response was stronger in this group. The larvae grew longer in the low-energy food group, and had the strongest encapsulation response. We observed the highest survival rates in larvae of the low-energy food group, while the highest mortality rates were observed in the high-energy food group. A significant negative correlation between body mass and the strength of encapsulation response was found only in the high-energy food group revealing significant competition between growth and immunity only at the highest rates of growth. The results of this study help to establish relationships between types of food, its nutritional value and life history traits of G. mellonella larvae.

关键词： Galleria mellonella growth immunity life history nutrition survival

非诺贝特治疗与2型糖尿病患者长期心血管病风险的关系

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华高血压杂志 2017年第6期25卷 534-534页

作者：刘莉叶鹏 Elam MB Ginsberg hn Lovato LC Corson M Largay j Leiter LA Lopez C O'Connor Pj Sweeney ME Weiss D Friedewald WT Buse jB Gerstein HC Probstfield j Grimm R Ismail-Beigi F Goff DC jr Fleg jL Rosenberg Y Byington RP ACCORDION study investigators

2型糖尿病患者心血管病风险高,部分原因在于高三酰甘油和低高密度脂蛋白胆固醇血症。而在他汀类药物治疗基础上,加强降低三酰甘油治疗,能否降低这种风险尚不清楚。该研究的目的是在使用他汀类药物治疗的2型糖尿病患者中,确定非诺贝特能... 详细信息

2型糖尿病患者心血管病风险高,部分原因在于高三酰甘油和低高密度脂蛋白胆固醇血症。而在他汀类药物治疗基础上,加强降低三酰甘油治疗,能否降低这种风险尚不清楚。该研究的目的是在使用他汀类药物治疗的2型糖尿病患者中,确定非诺贝特能否降低心血管病风险。

关键词： 2型糖尿病药物治疗心血管病非诺贝特风险患者高三酰甘油高密度脂蛋白