检索结果-南通市图书馆

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

1-甲基环丙烯延长菠菜采后保鲜期的研究

保鲜与加工 2011年第4期 54-54页

作者： Gustavo Gergoff Grozeff María e.Micieli Facundo Gómez Laura Fernández Juan J.Guiamet Alicia R.Chavesb Carlos G.Bartoli Instituto de Fisiología Vegetal Universidad Nacional de La Plata-CCT CONICET La Platacc327(1900)La PlataArgentina Centro de Investigacióny desarrollo en Criotecnología de Alimentos Facultad de Ciencias ExactasUniversidad Nacional de La Plata-CCT CONICET La Plata47y116(1900)La PlataArgentina

分别对经0.1、1.0μL.L-1浓度的1-甲基环丙烯(1-MCP)处理和未经1-MCP处理的离体菠菜叶片的衰老特性进行研究。结果表明,与对照相比,经1-MCP处理的菠菜叶片在避光、23℃条件下贮藏6 d后,叶绿素含量和光系统Ⅱ最高光量子产量较高,溶质渗... 详细信息

分别对经0.1、1.0μL.L-1浓度的1-甲基环丙烯(1-MCP)处理和未经1-MCP处理的离体菠菜叶片的衰老特性进行研究。结果表明,与对照相比,经1-MCP处理的菠菜叶片在避光、23℃条件下贮藏6 d后,叶绿素含量和光系统Ⅱ最高光量子产量较高,溶质渗漏量较低,说明1-MCP处理可延缓菠菜叶片的衰老。贮藏3 d后,经1-MCP处理的菠菜叶片乙烯生成量增加,随后又下降至对照水平。经1-MCP处理的菠菜叶片中具有较高的抗坏血酸和谷胱甘肽含量及对于这两种物质较低的氧化还原比率。1-MCP处理还可以减少菠菜叶片中的铵盐积累及蛋白质的降解。综合上述结果可以得出,通过1-MCP抑制菠菜叶片对乙烯作用的敏感性可有效延长菠菜的采后保鲜期。

关键词： 1-甲基环丙烯铵盐抗坏血酸乙烯谷胱甘肽溶质渗漏衰老菠菜

淡水豚类mtDNA 16S rRNA基因的系统发生

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

南京师大学报（自然科学版） 2000年第3期23卷 74-78页

作者：刘珊杨光周开亚 Ricardo Bastida Laura Rivero 南京师范大学生命科学学院遗传资源研究所南京210097 departamento de ciencias Marinas Casillade Correo43 7600 MardelPlataArgentina departamento de ciencias Marinas Casillade Correo43 7600Mardel PlataArgentina

mt DNA 16 S r RNA基因序列分析支持将现生淡水豚 4个属归入不同的科 ,即白暨豚科(L ipotiidae)、恒河豚科 (Platanistidae)、亚河豚科 (Iniidae)和弗西豚科 (Pontoporidae) .基于邻接法的系统发生分析显示淡水豚类由白暨豚 +恒河豚和... 详细信息

mt DNA 16 S r RNA基因序列分析支持将现生淡水豚 4个属归入不同的科 ,即白暨豚科(L ipotiidae)、恒河豚科 (Platanistidae)、亚河豚科 (Iniidae)和弗西豚科 (Pontoporidae) .基于邻接法的系统发生分析显示淡水豚类由白暨豚 +恒河豚和弗西豚 +亚河豚两个单系组成 ,但两个单系之间并无姊妹关系 .淡水豚类是并系的 .16 S r RNA基因的系统发生树与 mt DNA细胞色素 b基因和12 S r RNA基因的系统发生树并不完全一致 .这种差异一方面可能反映了不同的基因树间的差异 ,但也可能与本文分析的 16 S r RNA基因片段中变异位点数和简约信息位点数较少有关 .因此 ,有必要增加序列长度来进一步验证 .

关键词：淡水豚类 16SrRNA基因系统发生 mtDNA 分类

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

线粒体细胞病患者的脑部MRI表现

世界核心医学期刊文摘（神经病学分册） 2005年第9期1卷 17-18页

作者： Barragn-Campos H.M. Vallée J.-N. L.D. 高中宝 Service de Neuroradiologie du Professeur Jacques Chiras Groupe Hospitalier Pi tié-Salpêtrière 47-83 Boulevard de l'hpital 75651 Paris Cedex 13 FranceDr.

Background: Mitochondrial cytopathies (MCs) are a heterogeneous group of clini cal entities, some of which have classic phenotypes. Magnetic resonance imaging (MRI) has been reported to be helpful in the diagnosis of MC. Objective: To corr elate the most common brain MRI findings reported in patients with MC with the c linical findings in patients in different MC subgroups. design: Case series. Set ting: Patients with MCs seen at the Instituto National de ciencias Médicas y Nu tritin Salvador Zubirn, Mexico City, Mexico. Patients: Twenty-one patients with MC with the following phenotypes: chronic progressive external ophthalmople gia (n=7), Kearns-Sayre syndrome (n=7), mitochondrial neurogastrointestinal enc ephalopathy (n=6), and myoclonic epilepsy with ragged red fiber myopathy (n=1). Results: Brain MRI abnormalities were found in 20 (95%) of 21 patients. The mos t frequent abnormalities were widespread white matter hyperintensity in 19 patie nts (90%), supratentorial cortical atrophy in 18 patients (86%), and cerebella r atrophy in 13 patients (62%). Widespread white matter hyperin tensity (P entorial cortical atrophy (P=.001) were each corr elated significantly with MC. Subsequent subgroup analyses showed that the absen ce of basal ganglia hyperintensity was correlated with Kearns-Sayre syndrome (P e presence of supratentorial cortical atrophy was correlated with mitochondrial neurogastrointestinal encephalopathy (P=.005). Conclusions: The p resence of widespread white matter hyperintensity and/or supratentorial cortical atrophy in brain MRI may help to establish the diagnosis of MC. The radiologist has a role to play in the workup of MC by confirming the diagnosis and possibly distinguishing different subgroups of MC.

关键词：细胞病 MRI 肌阵挛型癫痫皮质萎缩脑白质放射科医师小脑萎缩鉴别诊断纤维肌脑病

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

几何计算手册

国外科技新书评介 2006年第9期 1-1页

作者： e．B．柯罗查诺（编）朱尧辰 Cinvestav Unidad Guadalajara Ciencias de la Computación México 中国科学院应用数学研究所

某些领域（如计算机科学、应用数学及物理等）的科研人员及工程技术人员在其研究工作中常常要用到几何理论及几何计算。本书汇集了由相关领域的权威学者撰写的23篇综述性论文，用统一的方式比较全面地论述了广泛使用的各种现代几何计算... 详细信息

某些领域（如计算机科学、应用数学及物理等）的科研人员及工程技术人员在其研究工作中常常要用到几何理论及几何计算。本书汇集了由相关领域的权威学者撰写的23篇综述性论文，用统一的方式比较全面地论述了广泛使用的各种现代几何计算方法、重要应用以及研究进展，涉及多个应用领域（特别是计算机科学，例如智能自控系统的设计等）以及几何学中的一些专题（如投影几何、几何代数、几何计算的不确定性、共形计算几何等）。

关键词：几何计算计算机科学手册工程技术人员应用数学几何理论科研人员计算方法

Assessment of right ventricular afterload by pressure waveform analysis in acute pulmonary hypertension

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiology 2011年第10期3卷 322-328页

作者： Juan C Grignola enric Domingo Lucía devera Fernando Ginés department of Pathophysiology. Hospital de Clínicas Facultad de Medicina. Universidad de la República Area del Cor. Hospital Universitari Vall d'Hebron. Passeig Vall d'Hebron 119-129 department of Physiology Universitat Autono- ma Barcelona 08193 Bellaterra (Cerdanyola del Vallès)

AIM: To characterize hydraulic right ventricle (RV) af- terload by pulmonary arterial pressure waveform analy- sis in an acute pulmonary hypertension (PH) model. MeTHODS: Pulmonary artery (PA) flow and pressure were recorded in six anesthetized sheep. Acute iso- baric PH was induced by phenylephrine (active) and PA mechanical constriction (passive). We estimated the amplitude of the forward and reflected pressure waves according to the inflection point. In most cases the in- flection pressure was smooth, thus the inflection point was defined as the time at which the first derivative ofpulmonary arterial pressure reached its first minimum. We calculated the input and characteristic (Z C , time- domain Li method) impedances, the capacitance index (stroke volume/pulse pressure), the augmentation index (AI) (reflected pressure/pulse pressure), the frac- tional pulse pressure (pulse pressure/mean pressure) and the wasted energy generated by the RV due to wave reflection during ejection (e W ). ReSULTS: Pulse pressure, fractional pulse pressure, AI and Z C increased and capacitance index decreased during passive PH with respect to control (P e capacitance index did not change and e W and the AI decreased during active PH. Pulse pressure correlated with e W and Z C and the AI was cor- related with e W (r > 0.6, P essure waveform analysis al- lows the quantification of the dynamic RV afterload. Prospective clinical studies will be necessary to validate this time-domain approach to evaluate the dynamic RV afterload in chronic PH.

关键词： Pulmonary hypertension Time-domain analysis Augmentation index Characteristic imped- ance Reflected wave

One stop shop Ⅱ:taxonomic update with molecular phylogeny for important phytopathogenic genera:26–50(2019)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fungal Diversity 2019年第1期 41-129页

作者： Ruvishika S.Jayawardena Kevin D.Hyde Rajesh Jeewon Masoomeh Ghobad-Nejhad Dhanushka N.Wanasinghe NingGuo Liu Alan J.L.Phillips Jose Ribamar COliveira-Filho Gladstone Ada Silva Tatiana B.Gibertoni P.Abeywikrama L.M.Carris K.W.T.Chethana A.J.Dissanayake S.Hongsanan S.C.Jayasiri A.R.McTaggart R.H.Perera K.Phutthacharoen K.G.Savchenko R.G.Shivas Naritsada Thongklang Wei Dong dePing Wei Nalin NWijayawardena Ji-Chuan Kang The engineering Research Center of Southwest Biopharmaceutical Resources Ministry of EducationGuizhou UniversityGuiyang 550025People’s Republic of China Center of excellence in Fungal Research Mae Fah Luang UniversityChiang RaiThailand Key Laboratory for Plant Diversity and Biogeography of east Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201People’s Republic of China department of Health Sciences Faculty of ScienceUniversity of MauritiusReduitMauritius department of Biotechnology Iranian Research Organization for Science and Technology(IROST)P.O.Box 15815-3538Tehran 15819Iran World agroforestry Centre East and Central AsiaKunming 650201YunnanPeople’s Republic of China Universidade de Lisboa Faculdade de CienciasBiosystems and Integrative Sciences Institute(BioISI)Campo Grande1749-016 LisbonPortugal departamento de Micologia Universidade Federal de PernambucoAvenida da EngenhariaS/N-Cidade UniversitariaRecifePE 50740-600Brazil Beijing Key Laboratory of environmet Friendly Management on Fruit Disease and Pests in North China Institute of Plant and Environment ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097People’s Republic of China department of Plant Pathology Washington State UniversityPullmanWA 99164USA College of Life Science and Oceanography ShenZhen University1068Nanhai AvenueNanshanShenzhen 518055China Queensland Alliance for agriculture and Food Innovation The University of QueenslandBrisbaneQLD 4001Australia department of Biological Sciences Butler UniversityIndianapolisIN 46208USA Centre for Crop Health University of Southern QueenslandToowoombaQLD 4350Australia department of entomology and Plant Pathology Faculty of AgricultureChiang Mai UniversityChiang Mai 50200Thailand Faculty of agriculture National Resources and EnvironmentNaresuan UniversityPhitsanulok 65000Thailand

This paper is the second in a series focused on providing a stable platform for the taxonomy of phytopathogenic *** focuses on 25 phytopathogenic genera:Alternaria,Bipolaris,Boeremia,Botryosphaeria,Calonectria,Coniella,Corticiaceae,Curvularia,elsinoe,entyloma,erythricium,Fomitiporia,Fulviformes,Laetisaria,Limonomyces,Neofabraea,Neofusicoccum,Phaeoacremonium,Phellinotus,Phyllosticta,Plenodomus,Pseudopyricularia,Tilletia,Venturia and Waitea,using recent molecular data,up to date names and the latest taxonomic *** each genus a taxonomic background,diversity aspects,species identification and classification based on molecular phylogeny and recommended genetic markers are *** this study,varieties of the genus Boeremia have been elevated to species ***,Bipolaris,Curvularia,Neofusicoccum and Phyllosticta that were included in the One Stop Shop 1 paper are provided with updated entries,as many new species have been introduced to these genera.

关键词： Boeremia DNA barcodes endophytes Plant pathology Systematics Taxonomy

efficacy and Safety of NVX-CoV2373 in Adults in the United States and Mexico

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

四川生理科学杂志 2021年第10期43卷 1796-1796页

作者： Lisa M Dunkle From Novavax Gaithersburg (L.M.D. G.A. K.S. W.W. I.C. G.M.G. F.D.) the University of Maryland School of Medicine Baltimore (K.L.K. M.A.M. K.M.N.) the National Institute of Allergy and Infectious Diseases Bethesda (J.H.) and Walter Reed Army Institute of Research Silver Spring (J.A.A.) - all in Maryland FAICIC Clinical Research Veracruz (A.Q.B.H.) and Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Mexico City (G.M.R.-P.) - both in Mexico Research Your Health Plano (J.M.A.) and the Texas Center for Drug Development Houston (V.G.-F.) - both in Texas M3-Wake Research Raleigh (W.L.H.) M3-Emerging Medical Research Durham (D.B.M.) and the University of North Carolina School of Medicine Chapel Hill (C.L.G.) - all in North Carolina SIMeDHealth Gainesville (D.M.D.) and Velocity Clinical Research Hallandale Beach (B.E.S.) - both in Florida the University of Nebraska Medical Center Omaha (D.F.F.) the University of Washington Medical Center (R.S.M. R.W.C. A.L.G.) and Fred Hutchinson Cancer Research Center (L.C.) Seattle and Lummi Indian Health Center Bellingham (D.C.L.) - all in Washington the Atlanta Center for Medical Research Atlanta (R.A.R.) and IACT Health Columbus (J.K.K.) - both in Georgia Velocity Clinical Research-Providence Warwick RI (D.L.F.) WR ClinSearch Chattanooga TN (M.M.) MedPharmics Metairie LA (R.J.J.) and Black Hills Center for American Indian Health Rapid City SD (J.A.H.).

Background:NVX-CoV2373 is an adjuvanted,recombinant spike protein nanoparticle vaccine that was shown to have clinical efficacy for the prevention of coronavirus disease 2019(Covid-19)in phase 2b-3 trials in the United Kingdom and South Africa,but its efficacy had not yet been tested in North ***:We conducted a phase 3,randomized,observer-blinded,placebo-controlled trial in the United States and Mexico during the first half of 2021 to evaluate the efficacy and safety of NVX-CoV2373 in adults(≥18 years of age)who had not had severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)*** were randomly assigned in a 2:1 ratio to receive two doses of NVX-CoV2373 or placebo 21 days *** primary objective was to determine vaccine efficacy against reverse-transcriptase-polymerase-chain-reaction-confirmed Covid-19 occurring at least 7 days after the second *** efficacy against moderate-to-severe disease and against different variants was also assessed.

关键词： vaccine doses prevention

Fungal diversity notes 491–602: taxonomic and phylogenetic contributions to fungal taxa

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fungal Diversity 2017年第2期83卷 1-261页

作者： Saowaluck Tibpromma Kevin D.Hyde Rajesh Jeewon Sajeewa S.N.Maharachchikumbura Jian-Kui Liu D.Jayarama Bhat e.B.Gareth Jones eric H.C.McKenzie erio Camporesi Timur S.Bulgakov Mingkwan Doilom AndreLuiz Cabral Monteiro de Azevedo Santiago Kanad Das Patinjareveettil Manimohan Tatiana B.Gibertoni Young Woon Lim Anusha Hasini ekanayaka Benjarong Thongbai Hyang Burm Lee Jun-Bo Yang Paul M.Kirk Phongeun Sysouphanthong Sanjay K.Singh Saranyaphat Boonmee Wei Dong K.N.Anil Raj K.P.deepna Latha Rungtiwa Phookamsak Chayanard Phukhamsakda Sirinapa Konta Subashini C.Jayasiri Chada Norphanphoun Danushka S.Tennakoon Junfu Li Monika C.Dayarathne Rekhani H.Perera Yuanpin Xiao Dhanushka N.Wanasinghe Indunil C.Senanayake Ishani D.Goonasekara N.Ide Silva Ausana Mapook Ruvishika S.Jayawardena Asha J.Dissanayake Ishara S.Manawasinghe K.W.Thilini Chethana Zong-Long Luo Kalani Kanchana Hapuarachchi Abhishek Baghela Adriene Mayra Soares Alfredo Vizzini Angelina Meiras-Ottoni Armin Mesic Arun Kumar Dutta Carlos Alberto Fragoso de Souza Christian Richter Chuan-Gen Lin debasis Chakrabarty Dinushani A.Daranagama Diogo Xavier Lima Dyutiparna Chakraborty enrico ercole Fang Wu Giampaolo Simonini Gianrico Vasquez Gladstone Alves da Silva Helio Longoni Plautz Jr Hiran A.Ariyawansa Hyun Lee Ivana Kusan Jie Song Jingzu Sun Joydeep Karmakar Kaifeng Hu Kamal C.Semwal Kasun M.Thambugala Kerstin Voigt Krishnendu Acharya Kunhiraman C.Rajeshkumar Leif Ryvarden Margita Jadan MdIqbal Hosen Michal Miksık Milan C.Samarakoon Nalin N.Wijayawardene Nam Kyu Kim Neven Matocec Paras Nath Singh Qing Tian R.P.Bhatt Rafael JoseVilela de Oliveira Rodham e.Tulloss S.Aamir Saithong Kaewchai Sayali D.Marathe Sehroon Khan Sinang Hongsanan Sinchan Adhikari Tahir Mehmood Tapas Kumar Bandyopadhyay Tatyana YuSvetasheva Thi Thuong Thuong Nguyen Vladimır Antonın Wen-Jing Li Yong Wang Yuvraj Indoliya Zdenko Tkalcec Abdallah M.elgorban Ali H.Bahkali Alvin M.C.Tang Hong-Yan Su Huang Zhang Itthayakorn Promputtha Jennifer Luangsa-ard Jianchu Xu Jiye Yan Kang Ji-Chuan Marc Stadler Pete Key Laboratory for Plant Diversity and Biogeography of east Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanPeople’s Republic of China Center of excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand World agroforestry Centre East and Central AsiaKunming 650201YunnanPeople’s Republic of China Mushroom Research Foundation 128 M.3 Ban Pa Deng T.Pa PaeA.Mae TaengChiang Mai 50150Thailand A.M.B.Gruppo Micologico Forlivese“Antonio Cicognani” Via Roma 18Forlı`Italy A.M.B.Circolo Micologico“Giovanni Carini” C.P.314BresciaItaly Societa`per gli Studi Naturalistici della Romagna C.P.144BagnacavalloRAItaly Formerly department of Botany Goa UniversityTaleigaoGoaIndia No.128/1-J Azad Housing SocietyCurcaGoa VelhaIndia 33 B St.edwards Road Southsea Hants Hampshire PO53DHUK Landcare Research Manaaki Whenua Private Bag 92170AucklandNew Zealand department of Biology Faculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Division of Applied Science College of International EducationThe Hong Kong Baptist UniversityHong Kong SARChina PostGraduate Program in Biology of Fungi Department of MycologyFederal University of PernambucoAv.Nelson Chavess/nRecifePE 50670-420Brazil Institute of Plant and environment Protection Beijing Academy of Agriculture and Forestry SciencesBeijing 100097People’s Republic of China environmental Microbiology Lab Division of Food TechnologyBiotechnology&AgrochemistryCollege of Agriculture and Life SciencesChonnam National UniversityYongbong-Dong 300Buk-GuGwangju 61186Korea Guizhou Key Laboratory of agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouPeople’s Republic of China College of agriculture and Biological Sciences Dali UniversityDali 671003YunnanPeople’s Republic of China Yunnan Institute of Food Safety Kunming University of Science&TechnologyKunming 650500YunnanPeople’s Republic

This is a continuity of a series of taxonomic and phylogenetic papers on the fungi where materials were collected from many countries,examined and *** addition to extensive morphological descriptions and appropriate asexual and sexual connections,DNA sequence data are also analysed from concatenated datasets to infer phylogenetic relationships and substantiate systematic positions of taxa within appropriate ***ever new species or combinations are proposed,we apply an integrative approach using morphological and molecular data as well as ecological features wherever *** on 112 fungal taxa are compiled in this paper including Biatriosporaceae and Roussoellaceae,Didysimulans ***.,81 new species,18 new host records and new country records,five reference specimens,two new combinations,and three sexual and asexual morph *** new species are Amanita cornelii,***,Angustimassarina alni,***,***,***,***,Ascochyta italica,***,Austroboletus appendiculatus,Barriopsis thailandica,Berkleasmium ariense,Calophoma petasitis,Camarosporium laburnicola,***,***,***,***,Colletotrichum sambucicola,Coprinopsis cerkezii,Cytospora gelida,Dacrymyces chiangraiensis,Didysimulans italica,***,entodesmium italica,entoloma magnum,evlachovaea indica,exophiala italica,Favolus gracilisporus,Femsjonia monospora,Fomitopsis flabellata,***,Gongronella brasiliensis,Helvella crispoides,Hermatomyces chiangmaiensis,***nae,Hysterium centramurum,Inflatispora caryotae,Inocybe brunneosquamulosa,***,***,Keissleriella cirsii,Lepiota cylindrocystidia,***,***,Lophiotrema guttulata,Marasmius luculentus,Morenoina calamicola,Moelleriella thanathonensis,Mucor stercorarius,Myrmecridium fluviae,Myrothecium septentrionale,Neosetophoma garethjonesii,Nigrograna cangshanensis,Nodulosphaeria guttulatum,***tata,***,Panus subf

关键词： Agaricomycetes Ascomycota Basidiomycota Dacrymycetes Dothideomycetes eurotiomycetes New combination Mucoromycotina New genus New records New species Pezizomycetes Phylogeny Sordariomycetes Taxonomy