检索结果-南通市图书馆

Venopulmonary ECMO Improved Hypoxemia and Supported the Right Ventricle in a Patient with Decompensated Eisenmenger Syndrome

引用

World Journal of Cardiovascular Surgery 2024年第1期14卷 7-19页

作者： Daniel Manzur-Sandoval Gian Manuel Jiménez-Rodríguez Edgar García-Cruz Ramón Espinosa-Soto Erika Yamali Ramirez-Marcano Yessenia Máyory Téllez-López José luis Elizalde-silva Gustavo Rojas-Velasco Cardiovascular Critical Care Unit Ignacio Ch&#225vez National Institute of Cardiology Mexico City Mexico Adult Congenital Heart Disease Unit Ignacio Ch&#225vez National Institute of Cardiology Mexico City Mexico Cardiology Department Ignacio Ch&#225vez National Institute of Cardiology Mexico City Mexico

Mechanical circulatory and/or respiratory assistance with extracorporeal membrane oxygenation (ECMO) has become a standard of care for patients with circulatory (venoarterial) and/or respiratory (venovenous) failure refractory to standard therapies. Adult patients with congenital heart disease are an increasingly recognized and growing population and include various groups, such as undiagnosed cases in childhood and palliated and/or corrected cases, which require subsequent care because of residual lesions, cardiac arrest/insufficiency, and arrhythmias, among other conditions. In addition, these patients are prone to developing pathologies that are typical of adulthood with a generally increased risk of morbidity and mortality because of their low reserves and organic damage associated with the underlying heart disease, which makes them candidates for ECMO. These patients represent an additional challenge in this therapy because malformations and the presence of a shunt can generally affect the usual cannulation methods and hemodynamic and oximetry monitoring. Thus, the configuration decision must be made on a case-by-case basis. Here, we present a cannulation method, venopulmonary artery ECMO, which provides hemodynamic and respiratory support, and may be ideal for patients with shunts and/or right ventricular dysfunction. To our knowledge, this is the first report of this configuration in patients with congenital heart diseases.

关键词： Eisenmenger Syndrome Venopulmonary Artery ECMO Refractory Hypoxemia Right Ventricular Dysfunction

来源：

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

Perpendicularly Self-Oriented and Shape-Controlled L10-FePt Nanorods Directly Synthesized by a Temperature-Modulated Process

引用

Nano Research 2011年第7期4卷 666-674页

作者： Tiago luis da silva Laudemir Carlos Varanda Colloidal Materials Group Instituto de Quimica de Sao Carlos Universidade de Sao Paulo--USP Sao Carlos PO Box 780 13566-590 Brazil

The synthesis and self-assembly of tetragonal phase-containing L10-Fe55Pt45 nanorods with high coercive field is described. The experimental procedure resulted in a tetragonal/cubic phase ratio close to 1：1 for the as-synthesized nanoparticles. Using different surfactant/solvent proportions in the process allowed control of particle morphology from nanospheres to nanowires. Monodisperse nanorods with lengths of 60 ＋ 5 nm and diameters of 2-3 nm were self-assembled in a perpendicular oriented array onto a substrate surface using hexadecylamine as organic spacer. Magnetic alignment and properties assigned, respectively, to the shape anisotropy and the tetragonal phase suggest that the self-assembled materials are a strong candidate to solve the problem of random magnetic alignment observed in FePt nanospheres leading to applications in ultrahigh magnetic recording （UHMR） systems capable of achieving a performance of the order of terabits/in2.

关键词： Magnetic materials data storage FePt nanorods self-assembl~ perpendicular magnetic alignment

来源：

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

Phenolic profile and biological potential of Endopleura uchi extracts

引用

Asian Pacific Journal of Tropical Medicine 2015年第11期8卷 870-878页

作者： luis R.silva Rafaela Teixeira CICS-UBI-Centro de Investigacao em Ciencias da Saude.Universidale da Beira Interior Av.Infante D.Henrique.6201-506.Corilha.Portugal Instituto Politecnico de Castelo Branco Escola Superior de Saude Dr Lopes DiasArenido do EmpresarioCampus da Talagueira6000-767Castelo BrancaPortugal LEPABE Departamento de Engenharia QuimicaFaculdade de Engenharia.Universidade do PortoRua Dr.Roberto Friass/n4200-465 PortoPortugal REQUIMTE/Laboratorio de Farmacognosia Departamento de QuimicaFaculdade de FarmaciaUniversidade do Porto.Rua de Jorge Viterbo Ferreira228.4050-313 PortoPortugal

Objective:To improve the knowledge on the metabolite composition of Endopleura uchi bark,concerning phenolic compounds,and to evaluate some of its biological capacities for further possible exploitation in food and pharmaceutical industries associated to their healthpromoting ***:Two different extracts(infusion and hydroethanolic) were studied concerning phenolic composition and biological ***:Five compounds were determined by HPLC-DAD,being bergenin the major *** general way,infusion presents a greater richness in these *** antioxidant,***,α-glucosidase and antibacterial activity were checked by in vitro assays.A dose-dependent response was noticed against DPPH,superoxide and nitric oxide radicals,acetylcholinesterase,butyrylcholinesterase and against α-glucosidase inhibitory *** capacity of both extracts was investigated against Gram-positive and Gramnegative bacteria,being more effective against the first *** concentrations of infusion extract tested here revealed that is non-toxic for intestinal(Caco-2) cells ***:The results suggest that the extracts of Endopleura uchi may be interesting for incorporating in pharmaceutical preparations for human health,since it can suppress hyperglycaemia and inhibit cholinesteases,and or as food additive due to its antiradical and antibacterial activities.

关键词： Endopleura uchi Bark Phenolic compounds Anti-diabe

来源：

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

Pore Scale Study of Gas-liquid Interface Movement in a Microfluidic Pore Network during Evaporation under Isothermal and Non-isothermal Conditions

Pore Scale Study of Gas-liquid Interface Movement in a Micro...

引用

作者： luis Carlos silva Rojas 上海交通大学

学位级别：硕士

The evaporation process has been studied widely in the past in order to understand the mechanisms and driving forces that induce the flow in multiphase *** knowledge is essential in industrial and real-life applications and systems such as oil recovery,soil remediation,water management in fuel cells,and *** this study,isothermal experiments at 21.5,46.7,and 74.1 ℃;and non-isothermal experiments with gradients of 10,20,and30 ℃ have been conducted in a 2D microfluidic pore network in order to observe the phase distribution,liquid-gas interface movement,liquid bridges,and capillary instability events induced by the dynamics of multi-phase *** find a relation between saturation and the flow rate during capillary instability *** show the formation and disappearance mechanisms of liquid bridges for all the non-isothermal and isothermal experiments at46.7,and 74.1 ℃.The effects of temperature in saturation,evaporation rate,capillary stability,specific interfacial area,and liquid bridges are also discussed in this *** temperature significantly impacts the evaporation rate,inducing different pathways when the gas phase recedes within the pore network and a shorter time duration for the overall evaporation *** instability is another phenomenon that affects the phase pattern and ***,it is not easy to observe and consider due to its duration(significantly shorter in comparison with the evaporation time)and unpredictability in the occurrence of a new ***,for the non-isothermal experiments,linear behavior is observed for the gradient between cold and hot temperatures.

关键词： porous media evaporation capillary instability liquid bridge thermal gradient specific interfacial area

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Abiotic stress on seed germination and plant growth of Zeyheria tuberculosa

引用

林业研究:英文版 2023年第5期34卷 1511-1522页

作者： Robson luis silva de Medeiros Rinaldo Cesar de Paula Joao Vitor Oliveira de Souza Joao Pedro Peixoto Fernandes Department of Agricultural Sciences School of Agricultural and Veterinarian SciencesSao Paulo State University(Unesp)14884-900JaboticabalSao PauloBrazil

Zeyheria tuberculosa(Vell.)Bureau ex *** among the Brazilian flora threatened with *** has high-quality wood and can be used to recover herbicidecontaminated ***,abiotic stresses can harm seed germination and seedling development under adverse conditions and need to be understood to improve autochthonous or indigenous biodiversity conservation and strengthen reforestation *** study evaluated the effects of temperature,water and saline stress on *** seed germination and water stress on seedling *** laboratory experiments evaluated germination under:(1)different temperatures(20,25,30,35 and 40℃);(2)different water potentials simulated with polyethylene glycol(PEG6000)at 25 and 30℃;and,(3)different osmotic potentials simulated with NaCl at 25 and 30℃.In addition,a greenhouse experiment subjected seedlings to five water regimes(20%,35%,50%,65%and 80%of maximum substrate water holding capacity).In the laboratory,seedling biometry and germination were evaluated,while physiological and morphological parameters were assessed in the *** potential of seeds increased at 25 and 30℃.Germination and vigor decreased as water and saline stresses *** tolerance thresholds for water and salt stresses were-0.6 and-0.4 MPa,*** the greenhouse,the most restrictive water regimes reduced seedling physiological and morphological *** development was compromised at moisture levels below50%field capacity.

关键词： Bignoniaceae Climate change Ipê-felpudo Ipê-preto Water stress

来源：

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

Considerations About Municipal Government Finance in the State of the Espirito Santo： 2001/2009

引用

Chinese Business Review 2015年第1期14卷 8-19页

作者： luis Abel da silva Filho William Gledson e silva Universidade Regional do Cariri Crato Brasil Universidade do Estado do Rio Grande do Norte Natal Brasil

Fiscal decentralization in Brazil has promoted a break in the national collection system and granted greater autonomy to states and municipalities against the federal government with regard to fundraising. The theoretical difference emerged, when one observes the greatest proliferation of local entities from the autonomy granted by the Federal Constitution （FC） from 1988 to the various levels of government, many of which almost totally depend on inter-governmental transfers. There are those who advocate the strengthening of public actions from observing the problems of small units （municipalities） and who will now have greater decision-making freedom. Therefore, this article aims to analyze the public finances of municipalities in the core theoretical （all people born in Espirito Santo） state guided by the Fiscal Responsibility Law （FRL） and fiscal decentralization in the country. For this purpose, they were taken as the time frame 2001 and 2009. Methodologically, this paper used a literature review, as well as data from the National Treasury Secretariat （STN）. In addition, authors took as a tool to help multiple regression models to strengthen the results. The principal evidence shows that, even with a slight improvement in the framework of indicators of revenue, these municipalities have proved essentially dependent on resources from the Union. Additionally, the results show a relative reduction of spending on items, such as staff costs and legislation in one year to another. In parallel, there were greater participation of the variables, costs of health and sanitation, education and culture, among others, to explain the variation of the expenditure of municipalities in Espirito Santo in the years observed. The data fit well to the model with a significance level of 1%.

关键词： Fiscal Responsibility Law (FRL) public finance cities of Espirito Santo State

来源：

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

Characterization of Nickel Alloy 600 with Ultra-Fine Structure Processed by Severe Plastic Deformation Technique (SPD)

引用

Journal of Materials Science and Chemical Engineering 2017年第4期5卷 33-44页

作者： Waldemar Alfredo Monteiro Silvio luis Ventavele da silva Luciana Ventavele da silva Arnaldo Homobono Paes de Andrade luis Carlos Elias da silva Nuclear and Energy Research Institute IPEN Cidade Universitária S&atilde o Paulo Brasil

High strength nickel based alloys are used in a multitude of advanced systems where lightweight, high power density mechanical power transmission systems are required. Components such as gears, bearings and shafts could be made significantly smaller and more durable if a major improvement in nickel based alloy mechanical properties could be achieved. An important refinement in grain size (includes nanometric level) is thought to be a promising method for achieving fundamental improvements in mechanical properties. Grain size is known to have a significant effect on the mechanical behavior of materials. One of the most favorable methods of achieving extreme grain refinement is by subjecting the materials to severe plastic deformation (SPD). The principal micro-structural variations in superalloys are the precipitation amount and morphology, grain size and the distribution of carbide precipitation that could reduce the mechanical properties of the alloys. This work shows optical and transmission electron microscopy analysis and also hardness data after severe plastic deformation (pure shear stress).

关键词： Nickel Based Alloys Severe Plastic Deformation Hardness Microstructure Microscopy

来源：

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

Different risk factors influence peptic ulcer disease development in a Brazilian population

引用

World Journal of Gastroenterology 2012年第38期18卷 5404-5411页

作者： Rodrigo Buzinaro Suzuki Rodrigo Faria Cola Larissa Tranquilino Bardela Cola Camila Garcia Ferrari Fred Ellinger Altino Luiz Therezo luis Carlos da silva André Eterovic Márcia Aparecida Sperana Department of Genotyping Hemocenter Marilia Medical School Marilia 17519-030 So Paulo Brazil Center for Natural and Human Sciences Universidade Federal do ABC Santo André 09210-170 So Paulo Brazil Department of Molecular Biology Marilia Medical School Marilia 17519-030 So Paulo Brazil Department of Pathology Marilia Medical School Marilia 17519-030 So Paulo Brazil

AIM: To investigate age, sex, histopathology and Helicobacter pylori (H. pylori) status, as risk factors for gastroduodenal disease outcome in Brazilian dyspeptic *** submitted to upper gastroscopy at Hospital das Clinicas of Marilia, antral biopsy specimens were obtained and subjected to histopathology and H. pylori diagnosis. All patients presenting chronic gastritis (CG) and peptic ulcer (PU) disease localized in the stomach, gastric ulcer (GU) and/or duodenal ulcer (DU) were included in the study. Gastric biopsies (n = 668) positive for H. pylori by rapid urease test were investigated for vacuolating cytotoxin A (vacA ) medium (m) region mosaicism by polymerase chain reaction. Logistic regression analysis was performed to verify the association of age, sex, histopathologic alterations, H. pylori diagnosis and vacA m region mosaicism with the incidence of DU, GU and CG in patients. RESULTS: Of 1466 patients submitted to endoscopy, 1060 (72.3%) presented CG [male/female = 506/554; mean age (year) ± SD = 51.2 ± 17.81], 88 (6.0%) presented DU [male/female = 54/34; mean age (year) ± SD = 51.4 ± 17.14], and 75 (5.1%) presented GU [male/female = 54/21; mean age (year) ± SD = 51.3 ± 17.12] and were included in the comparative analysis. Sex and age showed no detectable effect on CG incidence (overall c 2 = 2.1, P = 0.3423). Sex [Odds ratios (OR) = 1.8631, P = 0.0058] but not age (OR = 0.9929, P = 0.2699) was associated with DU and both parameters had a highly significant effect on GU (overall c 2 = 30.5, P < 0.0001). The histopathological results showed a significant contribution of ageing for both atrophy (OR = 1.0297, P < 0.0001) and intestinal metaplasia (OR = 1.0520, P < 0.0001). Presence of H. pylori was significantly associated with decreasing age (OR = 0.9827, P < 0.0001) and with the incidence of DU (OR = 3.6077, P < 0.0001). The prevalence of m1 in DU was statistically significant (OR = 2.3563, P = 0.0018) but not in CG (OR = 2.678, P = 0.0863) and G

关键词： Helicobacter pylori Gastric ulcer disease Duodenal ulcer disease Gastric atrophy Helicobacter pylori vacuolating cytotoxin A medium region mosaicism

来源：

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

北开普地区立法机构综合体,金伯利省,北开普地区,南非

引用

世界建筑 2005年第2期 62-65页

作者： luis Ferreira da silva Architects 路易斯.弗瑞拉.达.西尔瓦建筑事务所

这是南非金伯利北角的立法机构建筑群。是当地省政府即将进入的新办公地点，包括辩论室、总理办公室，立法委员会委员办公室发言人办公室、厨房、自助餐厅、餐馆、政府办公室、会议中心、媒体事务办公室、图书馆和档案办公室。

关键词：立法机构南非综合体金办公室会议中心省政府建筑群委员会

来源：

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

Natural Ageing Tests to Study In-service Different Facade Solutions--ETICS and Premixed One-Coat Rendered Walls

引用

Journal of Civil Engineering and Architecture 2016年第6期10卷 667-674页

作者： luis silva Ines Flores-Colen Nuno Vieira Ana Barros Timmons Saint Gobain Weber Portugal Aveiro 3800-055 Portugal Instituto Superior Tecnico Department of Civil Engineering and Architecture University of Lisbon Lisboa 1049-001 Portugal CICECO (Centre for Research in Ceramics and Composite Materials)-Aveiro Institute of Materials Department of Chemistry University of Aveiro Aveiro 3910-183 Portugal

In situ testing provides accurate characterization of existing degradation mechanisms of materials and building systems which helps reducing the subjectivity of visual inspections especially when ageing under natural ageing conditions is carried out over significant periods of time. In this work, data collected from field experimental campaigns over 10 years after construction using several premixed one-coat rendered walls and over 4 and 6 years after construction in the case of ETICS （external thermal insulation composite systems） are presented and discussed. The influence of hydrophobic agents on the performance of both types of facades in terms of surface condition and water penetration was assessed by visual inspections, Karsten test and capillary tests. Additionally, adhesion tests and subsequent evaluation of porosity were also carried out for premixed one-coat mortars. The results obtained have shown that ageing of the rendering solutions, especially after 5 or 6 years in-service, results from the loss of resistance to liquid water penetration, especially at the surface. Yet, additional mechanisms such as leaching of hydrophobic agents and photochemical degradation are thought to be involved, too. Moreover, the results obtained using the Karsten test proved to be the most reliable method to determine the loss of water penetration resistance and predict the ageing of facade solutions. The information collected and the correlations established can help developing solutions to prevent early ageing and implement appropriate maintenance plans to delay their effect.

关键词： Natural ageing tests faqade solutions water resistance hydrophobic agents adhesion.

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：