检索结果-南通市图书馆

心血管MRI评估静力运动对主动脉反流病人的急性效应:左心室重构的作用

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2017年第3期 362-363页

作者： j.M.Alegret N.Martinez-Micaelo A.L.Gerche L.franco-Bonafonte F.Rubio-Pérez N.Calvo 郭小琴 Departments of Cardiology and Sports Medicine Hospital Universitari de Sant Joan Institut d ’Investigació Sanitària Pere Virgili Universitat Rovira i Virgili

摘要目的对于主动脉反流(AR)的病人,静力运动(SE)对其全心室功能和反流程度的影响尚未见报道。方法前瞻性地对23例无症状的AR病人行静息及SE状态下的心血管MR(CMR)成像。结果 SE过程中,两心室的舒张末期(EDV)和收缩末期(ESV)容量均存在... 详细信息

摘要目的对于主动脉反流(AR)的病人,静力运动(SE)对其全心室功能和反流程度的影响尚未见报道。方法前瞻性地对23例无症状的AR病人行静息及SE状态下的心血管MR(CMR)成像。结果 SE过程中,两心室的舒张末期(EDV)和收缩末期(ESV)容量均存在反流量的下降,同时LV射血分数(EF)轻度下降,且上述变化的幅度取决于LV重构的程度。对于有较大程度LV重构的病人,由于LV ESV的下降幅度较小(相对于LV EDV)导致LV EF有所下降(静息时

关键词：心血管主动脉大动脉静力运动 MRI

Improvement of the Pulsed Photothermal Technique for the Measurement of the Convective Heat Transfer Coefficient

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

j.urnal of Thermal Science 2010年第4期19卷 357-363页

作者： M.Rebay A.Arfaoui G.Mebarki R.Ben Maad j.Padet University of Reims GRESPI/Lab de ThermomecaniqueFaculte des SciencesB.P.103951687 ReimsFrance University of Tunis EL MANAR LETTMFaculte des Sciences2092 Manar ⅡTunisia

The present study concerns the measurement of the convective heat transfer coefficient on the solid-fluid interface by the pulsed photothermal *** non-intrusive technique is apphed for the measurement of the local heat transfer coefficients in cooling of a rectangular slab that simulates an electronic *** heat transfer coefficient is deduced from the evolution of the transient temperature induced by a sudden deposit of a luminous energy on the front face of the *** order to draw up the heat transfer cartography by a non-destructive tool, the infrared thermography has been *** inverse techniques for the identification of the heat transfer coefficient are presented *** first one is based on the assumption that heat transfer coefficient remains constant during the pulsed experiment,and the second one considered it variable in space and *** temporal and spatial evolutions are expressed as a constant heat transfer coefficient(h_0)multiplied by a function of time and space f(x,t).The function f is deduced from the resolution of the conj.gated convection-conduction problem,by a control volume technique for the case of thermally thick *** results are given for different air velocities and deflection angles of the flow.

关键词： pulsed method infrared thermography convective heat transfer inverse method.

Low-temperature magnetic properties of horse spleen ferritin

在线全文

学校读者我要写书评

暂无评论

Low-temperature magnetic properties of horse spleen ferritin

Determinants of percutaneous coronary intervention success in repeat chronic total occlusion procedures following an initial failed attempt

中国科学院地质与地球物理研究所第十届(2010年度)学术年会

作者： TIAN LanXiang~(1,2),CAO ChangQian~(1,2),LIU QingSong~(1,2) & PAN YongXin~(1,2*) 1 Key Laboratory of the Earth’s Deep Interior,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beij.ng 100029,China 2 franco-Chinese Biomineralization and Nano-structures Laboratory,Beij.ng 100029,China

The magnetic properties of the antiferromagnetic cores in ferritin are of importance in the construction and improvement of ferritin -based magnetic resonance imaging systems and their application to environmental *** this study,we carry out integrated magnetic and transmission electron microscopy analyses of horse spleen ferritin(HoSF)to understand the relationships between the magnetic behavior of HoSF and temperature,applied field and grain-size *** R-value from the Woh1-farth -Cisowski test for the investigated sample at 5 K was 0.46,indicating very weak magnetostatic interactions among the nanoparticles of *** nanoparticles of HoSF show superparamagnetic properties at room temperature,while below the blocking temperature of T≈12 K it has a net magnetic moment that comes from the uncompensated spins of the nanoparticle surface or *** thermal relaxation process of HoSF follows the Neel-Arrhenius *** low-temperature AC susceptibility data,we calculated the effective magnetic anisotropy energy E=(5.52±0.16)×l0j.the effective magnetic anisotropy energy constant K=(4.65±0.14)×l0 j.m and the pre-exponential frequency factor f=(4.52±2.93)×*** values are useful in understanding the magnetic behavior of the antiferromagnetic nanoparticles and their potential application in biomedical technology.

关键词： horse spleen ferritin superparamagnetic low temperature magnetic properties pre-exponential frequency factor

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

World j.urnal of Cardiology 2017年第4期9卷 355-362页

作者： Cecilia Cuevas Nicola Ryan Alicia Quirós j.an Gustavo Del Angel Nieves Gonzalo Pablo Salinas Pilar j.ménez-Quevedo Luis Nombela-franco Ivan Nunez-Gil Antonio Fernandez-Ortiz Carlos Macaya j.vier Escaned Cardiovascular Institute Hospital Clinico San Carlos28040 MadridSpain

AIM To investigate the rates and determinants of success of repeat percutaneous coronary intervention(PCI) following an initial failed attempt at recanalising the chronic total occlusions(CTO) *** In 445 consecutive first attempt CTO-PCI procedures in our institution,procedural failure occurred in 149(33.5%). Sixty-four re-PCI procedures were performed in 58 patients(39%) all had a single CTO. Procedural and outcome data in the re-PCI population was entered into the institutional database. A retrospective analysis of clinical,angiographic and procedural data was performed. RESULTS Procedural success was achieved in 41(64%) procedures. Univariate analysis of clinical and angiographic characteristics showed that re-PCI success was associated with intravascular ultrasound(IVUS) guidance(19.5% vs 0%,P = 0.042),while failure was associated with severecalcification(30.4% vs 9.7%,P = 0.047) and a j.TO score > 3(56.5% vs 17.1% P = 0.003). Following multiple regression analysis the degree of lesion complexity(j.CTO score > 3),IVUS use,involvement of an experienced CTO operator and LAD CTO location were significant predictors of successful re-PCI. Overall the complication rate was low,with the only MACCE two periprocedural MI's neither of which required intervention. CONCLUSION Re-PCI substantially increases the overall success rate of CTO revascularization. Predictors of re-PCI success included the use of IVUS,the involvement of an experienced CTO operator in the repeat attempt and the location of the CTO.

关键词： Repeat percutaneous coronary intervention Chronic total occlusion

1例荧光原位杂交检测存在XXY镶嵌的男孩出现色素失禁症

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（皮肤病学分册） 2006年第9期2卷 57-57页

作者： franco L.M. Goldstein j. Prose N.S. 周少娜

We report the case of a male infant with incontinentia pigmenti (MIM 308310) and low-grade XXY mosaicism. Fluorescence in situ hybridization may reveal the underlying genetic alteration in male patients with incontine... 详细信息

关键词：荧光原位杂交色素失禁症原位杂交检测男孩遗传学改变男性患者

Restorative proctocolectomy with ileal pouch-anal anastomosis for ulcerative colitis:A narrative review

在线全文

学校读者我要写书评

暂无评论

World j.urnal of Gastrointestinal Surgery 2016年第8期8卷 556-563页

作者： Luigi Sofo Paola Caprino franco Sacchetti Maurizio Bossola Division of General Surgery Catholic University of the Sacred Heart Division of Gastroenterology Catholic University of the Sacred Heart

Restorative proctocolectomy with ileal pouch-anal anastomosis(RP-IPAA) is the gold standard surgical treatment for ulcerative ***,despite the widespread use of RP-IPAA,many aspects of this treatment still remain controversial,such as the approach(open or laparoscopic),number of stages in the surgery,type of pouch,and construction type(hand-sewn or stapled ileal pouch-anal anastomosis).The present narrative review aims to discuss current evidence on the short-,mid-,and long-term results of each of these technical alternatives as well as their benefits and disadvantages.A review of the MEDLINE,EMBASE,and Ovid databases was performed to identify studies published through March *** large,randomized,controlled studies have been conducted,which limits the conclusions that can be drawn regarding controversial *** available data from retrospective studies suggest that laparoscopic surgery has no clear advantages compared with open surgery and that one-stage RP-IPAA may be indicated in selected *** 2- and 3-stage RP-IPAA,patients who underwent these surgeries differed significantly with respect to clinical and laboratory variables,making any comparisons extremely *** long-term results regarding the pouch type show that the W- and j.reservoirs do not differ significantly,although the j.pouch is generally preferred by ***-sewn and stapled ileal pouch-anal anastomoses have their own advantages,and there is no clear benefit of one technique over the other.

关键词： ulcerative colitis total proctocolectomy ileal pouch anal anastomosis surgery laparoscopic

CRISPR/Cas9-Targeted Knockout of Rice Susceptibility Genes OsDj.2 and OsERF104 Reveals Alternative Sources of Resistance to Pyricularia oryzae

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rice science 2022年第6期29卷 535-544,I0023-I0030页

作者： Fabiano T.P.KTÁVORA Anne Cécile MEUNIER Aurore VERNET Murielle PORTEFAIX j.ëlle MILAZZO Henri ADREIT Didier THARREAU Octávio Lfranco Angela MEHTA Department of Genetics and Biotechnology Federal University of Juiz de ForaJuiz de Fora-MG 36036330Brazil Embrapa Genetic Resources and Biotechnology Brasília-DF 70770-917Brazil Genetic Improvement and Adaptation of Mediterranean and Tropical Plants Agricultural Research Center for International Development(CIRAD)Montpellier 34398 CEDEX 5France CIRAD-INRAe-Agro Institute University of MontpellierMontpellier 34000France Plant Health Institute of Montpellier CIRADMontpellier 34398France University of Montpellier National Institute of Agronomic ResearchResearch Institute for DevelopmentMontpellier SupAgroMontpellier 34398France Department of Genomics Science and Biotechnology Proteomics Analysis CenterCatholic University of BrasíliaBrasília-DF 71966-900Brazil S-Inova Biotech Catholic University of Dom BoscoCampo Grande-MS 79117-900Brazil

Rice genes OsDj.2 and OsERF104,encoding a chaperone protein and an APETELA2/ethylene-responsive factor,respectively,are strongly induced in a compatible interaction with blast fungus,and also have function in plant susceptibility validated through gene ***,we reported the CRISPR/Cas9 knockout of OsDj.2 and OsERF104 genes resulting in considerable improvement of blast resistance.A total of 15 OsDj.2(62.5%)and 17 OsERF104(70.8%)T_(0)transformed lines were identified from 24 regenerated plants for each target and used in downstream *** of homozygous T1 mutant lines revealed not only a significant decrease in the number of blast lesions but also a reduction in the percentage of diseased leaf area,compared with the infected control *** results supported CRISPR/Cas9-mediated target mutation in rice susceptibility genes as a potential and alternative breeding strategy for building resistance to blast disease.

关键词： gene editing plant-pathogen interaction Magnaporthe pathosystem plant immunity blast resistance S-gene rice

Impact of E×B flow shear stabilization on particle confinement and density peaking at j.T

在线全文

学校读者我要写书评

暂无评论

Plasma Science and Technology 2020年第6期22卷 60-73页

作者： W BUANGAM j.GARCIA T ONj.N j.T Contributors School of Manufacturing Systems and Mechanical Engineering Sirindhorn International Institute of TechnologyThammasat UniversityPathumthani 12120Thailand CEA IRFMSaint-Paul-lez-Durance F-13108France Thailand Institute of Nuclear Technology Chatuchak 10900Thailand 不详

The impact of the E×B flow shear stabilization on particle transport and density peaking at j.T is analyzed in the framework of integrated modelling with the CRONOS *** that purpose,plasmas from a power scan which show a significant increasing of density peaking with the inj.cted neutral beam inj.ction power have been used as a modeling *** means of simulations with the quasilinear model GLF23 for the heat and particle transport,a strong link between the particle confinement and E×B flow shear stabilization is *** is particularly important close to the pedestal region where the particle pinch direction becomes strongly inward for high E×B flow shear *** impact introduces some non-negligible deviation from the well-known collisonality dependence of the density peaking,whose general trend has been also obtained in the framework of this modelling by performing pedestal density scans.

关键词： particle confinement density peaking flow shear transport

在线全文

学校读者我要写书评

暂无评论

用复合树月旨重建天然的前牙切端

中国口腔医学继续教育杂志 2008年第2期11卷 41-44页

作者： E.B.franco, DDS, MsC, PhD C.E.Francischone, DDS, MsC PhD j.R.Medina-Valdivia, DDS, MSc W.Baseggio, DDS, MSc 闫昕（译）吴霞（译）刘洪臣（审）王成龙（审）不详解放军总医院口腔科北京复兴路28号100853

前牙需要修复的患者希望修复后的前牙与组成微笑的其他牙齿一样美观。因此，临床医生不仅要具有恢复牙齿生物学及功能的专业技术，还需要具有能够指导他们重现牙齿颜色及解剖的细微特征的审美观，使人们感觉不到修复体的存在。我们介绍... 详细信息

前牙需要修复的患者希望修复后的前牙与组成微笑的其他牙齿一样美观。因此，临床医生不仅要具有恢复牙齿生物学及功能的专业技术，还需要具有能够指导他们重现牙齿颜色及解剖的细微特征的审美观，使人们感觉不到修复体的存在。我们介绍了具有更好机械性能及光学特性的新型复合树脂，因对牙齿组织光学特性更深的理解，能使复合树脂直接粘结修复达到更加美观的效果。利用加入与牙体晶格一致的复合树脂的方法和作用，在适当的部位正确使用一定厚度的复合树脂，能够体现出色度的变化．从而使修复体表现出正常的光学特性。本文通过一病例描述复合树脂选择及选色的方法，同时介绍的复合树脂临床操作顺序可以在前牙切端修复体处重建天然牙的光泽。利用这项技术，可使树脂修复达到可预计的满意修复美学效果。

关键词：色调不透明乳白色光晕切端修复复合树脂色度选色半透明