检索结果-南通市图书馆

Nano Research 2020年第9期13卷 2351-2355页

作者： carlos Fernández-Lodeiro Javier Fernández-Lodeiro Enrique Carbó-Argibay carlos Lodeiro Jorge Pérez-Juste Isabel Pastoriza-Santos CINBIO Universidade de VigoCampus universitario LagoasMarcosende36310 VigoSpain Galicia Sur Health Research Institute(IIS Galicia Sur) SERGAS-UVIGO36312 VigoSpain BIOSCOPE Group LAQV@REQUIMTEChemistry DepartmentNOVA School of Science and TechnologyNOVA University LisbonCaparica Campus2829-516 CaparicaPortugal PROTEOMASS Scientific Society Rua dos InventoresMadam ParqueCaparica Campus2829-516 CaparicaPortugal International Iberian Nanotechnology Laboratory(INL) Av.Mestre Jose Veiga s/n4715-330 BragaPortugal

A highly versatile seed-mediated approach for the synthesis of citrate-stabilized gold,silver and palladium nanoparticles(NPs)with size control is *** use of iron(Ⅱ)as a reducing agent enables the fabrication of monodisperse NPs in a wide range of sizes(from 15 nm to at least 120 nm(90 nm for Pd))at room *** citrate as capping ligand on the NPs surface facilitates its further surface modification with proteins and thiolated molecules.

关键词： plasmonic nanoparticles gold silver palladium citrate-stabilized Fe(Ⅱ)

Periodontal and inflammatory bowel diseases: Is there evidence of complex pathogenic interactions?

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 Gastroenterology 2016年第35期22卷 7963-7972页

作者： Ronaldo Lira-Junior carlos Marcelo Figueredo Department of Periodontology Faculty of Odontology Rio de Janeiro State University Rio de Janeiro RJ 20551-030 Brazil

Periodontal disease and inflammatory bowel disease(IBD) are both chronic inflammatory diseases. Their pathogenesis is mediated by a complex interplay between a dysbiotic microbiota and the host immuneinflammatory response, and both are influenced by genetic and environmental factors. This review aimed to provide an overview of the evidence dealing with a possible pathogenic interaction between periodontal disease and IBD. There seems to be an increased prevalence of periodontal disease in patients with IBD when compared to healthy controls, probably due to changes in the oral microbiota and a higher inflammatory response. Moreover, the induction of periodontitis seems to result in gut dysbiosis and altered gut epithelial cell barrier function, which might contribute to the pathogenesis of IBD. Considering the complexity of both periodontal disease and IBD, it is very challenging to understand the possible pathways involved in their coexistence. In conclusion, this review points to a complex pathogenic interaction between periodontal disease and IBD, in which one disease might alter the composition of the microbiota and increase the inflammatory response related to the other. However, we still need more data derived from human studies to confirm results from murine models. Thus, mechanistic studies are definitely warranted to clarify this possible bidirectional association.

关键词： Periodontal disease Inflammatory bowel disease Crohn’s disease Ulcerative colitis Inflammation

Endoscopic management of complications of chronic pancreatitis

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 Gastroenterology 2013年第42期19卷 7308-7315页

作者： Jean-Marc Dumonceau carlos Macias-Gomez Division of Gastroenterology and Hepatology Geneva University Hospital1211 GenevaSwitzerland Gastrointestinal Endoscopy Unit Gastroenterology ServiceItalian Hospital1181 Buenos AiresArgentina

Pseudocysts and biliary obstructions will affect approximately one third of patients with chronic pancreatitis(CP).For CP-related,uncomplicated,pancreatic pseudocysts(PPC),endoscopy is the first-choice therapeutic *** advances have focused on endosonography-guided PPC transmural drainage,which tends to replace the conventional,duodenoscope-based coma immediately *** material is being tested to facilitate the endosonography-guided *** this review,the most adequate techniques depending on PPC characteristics are presented along with supporting *** CP-related biliary obstructions,endoscopy and surgery are valid therapeutic *** co-morbidities(e.g.,portal cavernoma)and expected patient compliance to repeat endoscopic procedures are important factors when selecting the most adapted *** should be reasonably ruled out before embarking on the endoscopic treatment of presumed CP-related biliary *** endoscopy,the gold standard technique consists of placing simultaneous,multiple,side-by-side,plastic stents for a oneyear *** covered self-expandable metal stents are challenging this method and have provided 50%mid-term success.

关键词： Biliary stricture Chronic pancreatitis Pseudocyst Endoscopic retrograde cholangio-pancreatography Endoscopic ultrasonography Stent

Exhaust Ventilation through a Solar Chimney： A Response to High Hermeticity in Welfare Housing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Civil Engineering and Architecture 2015年第7期9卷 767-774页

作者： Marcos Eduardo Gonzalez-Trevizo Adolfo Gomez-Amador Anibal Luna-Leon carlos Escobar-Del POZO carlos Javier Esparza lopez Facultad de Arquitectura (Faculty of Architecture) Universidad Michoacana de San Nicoldls de Hidalgo (Michoacan Universityof Saint Nicholas of Hidalgo) Morelia MN 58030 Mexico Facultad de Arquitectura y DiseFzo (Faculty of Architecture and Design) Universidad de Colima (University of Colima) ColimaCL 28400 Mexico Facultad de Arquitectura y Diseho (Faculty of Architecture and Design) Universidad Aut6noma de Baja California (BajaCalifornia Autonomous University) Mexieali BC 21280 Mexico Facultad de Ingenieria Mecnica y Elctrica (Faculty of Mechanical and Electrical Engineering) Universidad de ColimaColima CL 28400 Mexico

This research reports on potentiality in the solar chimney as an exhaust ventilation device through a hypothetical statement that convenient weather conditions exist on sub-humid warm climate to enhance the performance ofa SC （solar chimney）, in order to increase ventilation to dissipate metabolic heat from inhabitants of airtight buildings. The methodology used in this research integrates the use of simplified mathematical models that predict in a semi-empirical way a potential volume flow through estimation of kinetic power generation, by natural circulation and stack effect in a typical covered-plate air solar collector. The study was carried out during the warm month of April, an important warm season for Colima, where the prevailing wind is about 6.8 m/s, the average temperature of maximums and minimums oscillates between 15.4℃and 34.4 ℃ with average relative humidity of 65% according to national weather service. A scale model of the SC was installed on environmental chambers. The results showed that this device is capable of generating ventilation conditions around light breeze parameters near between 0.6 m/s and 1.5 m/s width, a better performance at day in 45% approximately than the night values, making ventilation rates up 0.24 ACH （air changes per hour） as average air change rate.

关键词： Exhaust ventilation solar chimney air solar collector welfare housing.

Effect of forest disturbance on myxomycete assemblages in the southwestern Peruvian Amazon

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 2013年第2期59卷 45-53页

作者： carlos Rojas Steven L.Stephenson Instituto de Investigaciones en Ingeniería and Escuela de Biología Universidad de Costa RicaSan Pedro de Montes de Oca 11501-2060Costa Rica Department of Biological Sciences University of ArkansasFayettevilleAR 72701-1201USA

Although the effects of microenvironmental factors on distribution patterns in myxomycetes have been investigated,studies of the responses of this group of organisms to different regimes of forest disturbance are relatively few in *** an effort to understand the implications of forest fragmentation and habitat loss on myxomycetes,the project described herein was carried out at the Los Amigos Biological Station in southeastern *** structure and composition of assemblages of myxomycetes were investigated in relation to three different forest types and climatic periods in the area of *** analysis of the most commonly recorded substrates was carried out as *** results suggested that habitat loss,through differences in forest structure,was the factor determining most of the differences in fruiting body abundance of myxomycetes among forest *** addition,a switch in the ecological strategy of dispersal seemed to be an important factor accounting for differences in the fruiting body abundance and structure of assemblages of myxomycetes between collecting *** study provides evidence indicating that for microbial assemblages to maintain the balance of functional interactions within a particular forest ecosystem,the conservation of the forests themselves should be considered.

关键词： Biogeography Microbial ecology Mycetozoans Myxogastrids Restoration ecology

Special issue on on-board optimization strategy design methods for connected hybrid electric vehicles

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Control Theory and Technology 2022年第2期20卷 143-144页

作者： Tielong Shen carlos Guardiola Fuguo Xu Sophia University TokyoJapan Universitat Politècncia de València ValenciaSpain Tokyo City University TokyoJapan

As a trend in the innovation of automotive engineering,connectivity provides new opportunities and challenging issues for vehicular powertrain control due to big potential in the use of the connected information for improving energy efficiency and reducing CO_(2) *** real world driving situation,a bottleneck for achieving optimal energy efficiency via control of the power sources in the powertrain is the uncertainty in power demand,since the power demand is delivered by the driver according to the driving environment which is always with stochasticity and un-detectable event in the *** connectivity enables us to predict the power demand in advance by using the real-time information of vehicle-to-vehicle,vehicle-to-infrastructure.

关键词： driving connected connectivity

Variations of OCT measurements corrected for the magnification effect according to axial length and refractive error in children

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Innovative Optical Health Sciences 2018年第1期11卷 123-137页

作者： Inmaculada Bueno-Gimeno Enrique España-Gregori Andres Gene-Sampedro Juan carlos Ondategui-Parra carlos J.Zapata-Rodriguez Department of Optics and Optometry and Vision Science University of Valencia Spain Department of Surgery University of Valencia University Hospital La FeSpain Faculty of Optics and Optometry University Vision Centre Polytechnic University of CataloniaSpain

Purpose:The aim of this paper was to examine the distribution of macular,retinal nerve fiber layer(RNFL)thickness and optic disc parameters of myopic and hyperopic eyes in comparison withemmetropic control eyes and to investigate their variation according to axial length(AL)andspherical equivalent(SE)in healthy ***:This study included 293 pairs of eyes of 293children(145 boys and 148 girks),ranging in age from 6 to 17 years,Subjects were dividedaccording to SE in control(emmetropia,99 children),myopia(100 children)and hyperopia(94children)groups and according to axial AL in 68 short(25.00 mm,36).Macular parameters,RNFL thickness and opticdisc morphology were assessed by the Cirrus^(TM) *** was measured using the ***'s formula was used for calculating the corrected AL-related ocular *** Mean age(±SD)was 10.84±3.05 years;mean(±SD)SE was+0.14±0.51 D(range from8.75 to+8.25 D)and mean AL(±SD)was 23.12±*** RNFL thickness,averagemacular thickness and macular volume decreased as AL and myopia *** correlationsbetween AL/SE and optic disc parameters were found after correcting for magnification ***:AL and refractive error affect measurements of macular and RNFL thickness inhealthy *** make a correct interpretation of ocT measurements,ocular magnificationeffect should be taken into account by clinicians or OCT manufacturers.

关键词： Axial length refractive error children OCT measurements magnification fect

Optimal heat release shaping in a reactivity controlled compression ignition （RCCI） engine

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Control Theory and Technology 2017年第2期15卷 117-128页

作者： carlos GUARDIOLA Benjamin PLA Antonio GARCiA Vicente BORONAT CMT-Motores Termicos Universitat Politecnica de Valencia Valencia Spain

The present paper addresses the optimal heat release （HR） law in a single cylinder engine operated under reactivity controlled compression ignition （RCCl） combustion mode to minimise the indicated specific fuel consumption （ISFC） subject to different constraints including pressure related limits （maximum cylinder pressure and maximum cylinder pressure gradient）. With this aim, a 0-dimensional （OD） engine combustion model has been identified with experimental data. Then, the optimal control problem of minimising the ISFC of the engine at different operating conditions of the engine operating map has been stated and analytically solved. To evaluate the method viability a data-driven model is developed to obtain the control actions （gasoline fraction） leading to the calculated optimal HR, more precisely to the optimal ratio between premixed and diffusive combustion. The experimental results obtained with such controls and the differences with the optimal HR are finally explained and discussed.

关键词： Diesel engine RCCI combustion analysis optimal control

Everything that is not given is lost

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 Pediatrics 2021年第6期17卷 566-567页

作者： Javier Arredondo Montero carlos Bardajf Pascual Pediatric Surgery Department Complejo Hospitalario de NavarraCalle Irunlarrea 331008 Pamplona.NavarraSpain

A small health center is located in Velingara,*** is approximately 7 o'clock in the *** the old,dusty room that constitutes the operating room,a soft beeping sound,like that of a kettle,begins to be heard between the rhythmic beats of the heart *** oxygen cylinder has started to ***,one of us approaches and applies Teflon,controlling the *** a while,the electrical current is cut ***,the anesthesiologist continues to hand ventilate the patient with her ambu,and we all turn on our *** is no more electric scalpel,but the activity does not stop.

关键词： problem cylinder approximate

Brugada electrocardiographic pattern induced by fever

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 2012年第3期4卷 84-86页

作者： Pablo Lamelas carlos Labadet Fernando Spernanzoni Cristian lopez Saubidet Paulino A Alvarez Cardiology Resident Instituto Cardiovascular Buenos AiresBuenos Aires C1428ARTArgentina Cardiology Division Centro de Educación Medica e Investigación ClínicaBuenos Aires C1425ASSArgentina Department of Medicine Centro de Educación Medica e Investigación ClínicaBuenos Aires C1425ASSArgentina

Brugada syndrome is a major cause of sudden death in young *** has been described to induce a Brugada-type electrocardiogram in asymptomatic patients with a negative family history,to disclose Brugada syndrome and to increase the risk of death and induce T wave alternans in patients with diagnosed Brugada *** stratification is challenging and demands a careful *** we present 2 case reports and review the literature.

关键词： Brugada syndrome Phenotype Fever Electrocardiogram