检索结果-南通市图书馆

Fast-track protocols in laparoscopic liver surgery:Applicability and correlation with difficulty scoring systems

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 Gastrointestinal Surgery 2022年第3期14卷 211-220页

作者： Ruben Ciria Ana Padial María Dolores Ayllón Carmen García-Gaitan javier Briceño Unit of Hepatobiliary Surgery and Liver Transplantation University Hospital Reina SofiaCordoba 14004Spain Unit of Anesthesiology University Hospital Reina SofiaCordoba 14004Spain

BACKGROUND Few series have reported the utility of fast-track protocols(FTP)in minimally invasive liver *** To report the applicability of FTP in minimally invasive liver surgery and to correlate with difficulty *** The series of patients undergoing minimally invasive liver surgery from 2014 was ***,Southampton and Gayet’s scores were compared as predictors of FTP *** of FTP was considered within 24-h,48-h and *** models were performed to define discharge<24 h,<72 h,complications and *** From 160 cases,78 were candidates for FTP,of which 22(28.2%),19(24.4%)and 14(17.9%)were discharged in<24-h,48-h and 72-h,respectively(total=71.5%).Iwate,Southampton and Gayet’s scores achieved area under the receiver operating characteristic values for<24-h stay of 0.780,0.687 and 0.698,*** and specificity values for the best score(Iwate)were 87.7%and 66.7%,respectively(cutoff=5.5).In multivariate models,<72 h stay and complications revealed body mass index as a risk factor independent from difficulty *** The development of aggressive FTP is feasible and<24-h stay can be achieved even in moderate and advanced complexity *** scores,including body mass index value,may be useful to predict which cases may adhere to these protocols.

关键词： Liver Fast-track Enhanced recovery Laparoscopy

Holographic Duals of Quark Gluon Plasmas with Unquenched Flavors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2012年第3期57卷 364-386页

作者： Francesco Bigazzi Aldo Cotrone javier Mas Daniel Mayerson javier Tarrio Dipartimento di Fisica e Astronomia Universita' di Firenze Via G.Sansone 1 I-50019 Sesto Fiorentino (Firenze)Italyand INFNSezione di PisaLargo B.Pontecorvo356127 PisaItaly Dipartimento di Fisica Universita' di Torino and INFN Sezione di Torino Via P.Giuria 1 I-10125 TorinoItaly Departamento de F' sica de Part' culas Universidade de Santiago de Compostela and Instituto Galego de F' sica de Altas Enerx' as (IGFAE) E-15782 Santiago de CompostelaSpain Institute for Theoretical Physics University of AmsterdamScience Park 904Postbus 944851090 GL AmsterdamThe Netherlands Institute for Theoretical Physics Universiteit Utrecht3584 CEUtrechtThe Netherlands

We review the construction of gravitational solutions holographically dual to N=1 quiver gauge theories with dynamical flavor *** focus on the D3-D7 construction and consider the finite temperature,finite quark chemical potential case where there is a charged black hole in the dual *** physical outputs of the model include its thermodynamics (with susceptibilities) and general hydrodynamic properties.

关键词：夸克胶子等离子体全息口味淬灭水动力性能有限温度带电黑洞化学势

Reconstruction of lateral root formation through single-cell RNA sequencing reveals order of tissue in itiation

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2021年第8期14卷 1362-1378页

作者： Laura Serrano-Ron Pablo Perez-garcia Alvaro Sanchez-Corrionero Inmaculada Gude javier Cabrera Pui-Leng Ip Kenneth D.Birnbaum Miguel A.Moreno-Risueno Centro de Biotecnologia y Genomica de Plantas Universidad Politecnica de Madrid(UPM)-lnstituto Naci on al de Investigacion y Tec no logia Agraria y Alimentaria(INIA)Pozuelo de Alarcon28223 MadridSpain Departamento de Biotecnologia-Biologia Vegetal Escuela Tecnica Superior de Ingenieria AgronomicaAlimentaria y de BiosistemasUniversidad Politecnica de Madrid(UPM)28040 MadridSpain Center for Genomics and Systems Biology Department of BiologyNew York UniversityNew YorkNYUSA

Postembryonic organogenesis is critical for plant ***,lateral roots(LRs)form the bulk of mature root systems,yet the ontogeny of the LR primordium(LRP)is not *** this study,we performed the single-cell RNA sequencing through the first four stages of LR formation in *** analysis led to a model in which a single group of precursor cells,with a cell identity different from their pericycle origins,rapidly reprograms and splits into a mixed ground tissue/stem cell niche fate and a vascular precursor *** ground tissue and stem cell niche fates soon separate and a subset of more specialized vascular cells form sucrose transporting phloem cells that appear to connect to the primary *** did not detect cells resembling epidermis or root cap,suggesting that outer tissues may form later,preceding LR *** this stage,some remaining initial precursor cells form the primordium flanks,while the rest create a reservoir of pluripotent cells that are able to replace the LR if *** ablation of the central and lateral LRP regions showed that remaining cells restart the sequence of tissue initiation to form a ***,our study reveals an ontological hierarchy for LR formation with an early and sequential split of main root tissues and stem cells.

关键词： organogenesis patterning stem cells single-cell RNA-seq cell fate regeneration

Integrating time progression in ecoimmunology studies: beyond immune response intensity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current Zoology 2019年第2期65卷 205-212页

作者： Francisco javier ZAMORA-CAMACHO Department of Biological Sciences Dartmouth College Hanover New Hampshire USA Department of Biogeography and Global Change Museo Nacional de Ciencias Naturales (MNCN) Spanish National Research Council (CSIC) Madrid Spain

Habitat alterations in agroecosystems may damage amphibian immune capacity. As agroecosystem extension is increasing worldwide, broader-context knowledge on the effects of agroecosystem stressful conditions on amphibian immune capacity is crucial for understanding and management of amphibian global declines. However, most studies on ecoimmunology assume synchronal amonggroup immune-response peaks, and focus on immune response after standardized time lapses, neglecting its progress!on. Herein, I compared inflamatory response short-term progression of agro ecosystem and n atural-habitat female and male n atterjack toads Epi da lea calamita, by measuri ng swelling response, once per hour, 6 h following an artificial immune challenge with innocuous antigen phytohemagglutinin. I also compared maximum magnitude of swelling response, irrespective of the moment when it was reached. Habitat differences arose only 3 h after challenge, when naturalhabitat toads showed greater swelling response. Maximum magnitude of swelling response was similar in toads from both habitats. However, agroecosystem toads showed a delayed swelling response as compared with natural-habitat conspecifics, probably as a consequenee of agroecosystem stressful conditions. Such a delay suggests a weaker immune capacity, and consequently impaired anti-pathogen performance. Regarding sex, swelling response magnitude did not differ between males and females. Female swelling response peaked earlier, but that of males was more sustai ned in time, which con tradicts general across-taxa fin dings that males show impaired immune response. Interestingly, results suggest that measuring swelling response only after some standardized period following stimulation may be a simplistic approach and produce unrealistic results. Consequently, studies on ecoimmunology should implement swelling response progression in order to produce unbiased science.

关键词： agroecosystem amphibian immunocompetence natural habitat immune response progressi on

基于计算缩放的光滑粒子水动力学方法模拟飞机油箱剧烈晃动问题

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 Mechanica Sinica 2023年第2期39卷 39-48页

作者： Calderon-Sanchez javier Martinez-Carrascal Jon Gonzalez Leo Miguel CEHINAV Model Basin ETSI NavalesUniversidad Politécnica de MadridMadrid28040Spain

大型民用飞机的机翼设计用于承受从大气阵风到湍流到着陆冲击的各种载荷,机翼是需要进一步研究的重要结构.改进机翼设计的主要方法之一是分析晃动对承载液体的柔性机翼状结构动力学的阻尼效应.这将通过开发实验装置来实现,该装置将有助... 详细信息

大型民用飞机的机翼设计用于承受从大气阵风到湍流到着陆冲击的各种载荷,机翼是需要进一步研究的重要结构.改进机翼设计的主要方法之一是分析晃动对承载液体的柔性机翼状结构动力学的阻尼效应.这将通过开发实验装置来实现,该装置将有助于建立和再现涉及物理领域的数值模型.因此,本工作的目的是使用数值方法光滑粒子流体动力学(SPH)作为主要数值工具,分析晃动在降低飞机结构设计载荷方面的影响.本研究中的一个关键因素是对比例实验的需求,这是评估计算工具是否能够准确近似不同比例的注册测量值的必要步骤.为此,建立了一个垂直振动水槽的数值模型,该模型是一个完全耦合的流固耦合问题.该结构通过质量-弹簧-阻尼器系统建模,对于内部流体,使用δ-SPH方法.特别是,研究了两个开放性问题:第一个问题是,当储罐的初始加速度是标准重力值的十倍时,重力对阻尼和能量耗散现象的影响程度;第二种问题旨在确认,当根据量纲分析对问题参数进行缩放时,SPH方程正确地再现了缩放定律.

关键词： SPH Sloshing Gravity Computational scaling

Automated Deep Learning Empowered Breast Cancer Diagnosis UsingBiomedical Mammogram Images

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第6期71卷 4221-4235页

作者： JoséEscorcia-Gutierrez Romany F.Mansour Kelvin Belen javier Jiménez-Cabas Meglys Pérez Natasha Madera Kevin Velasquez Electronics and Telecommunications Engineering Program Universidad Autónoma del CaribeBarranquilla08001Colombia Department of Mathematics Faculty of ScienceNew Valley UniversityEl-Kharga72511Egypt Mechatronics Engineering Program Universidad Autónoma del CaribeBarranquilla08001Colombia Department of Computational Science and Electronic Universidad de la CostaCUCBarranquilla08001Colombia

Biomedical image processing is a hot research topic which helps to majorly assist the disease diagnostic *** the same time,breast cancer becomes the deadliest disease among women and can be detected by the use of different imaging *** mammograms can be used for the earlier identification and diagnostic of breast cancer to minimize the death *** the proper identification of breast cancer has mainly relied on the mammography findings and results to increased false *** resolving the issues of false positives of breast cancer diagnosis,this paper presents an automated deep learning based breast cancer diagnosis(ADL-BCD)model using digital *** goal of the ADL-BCD technique is to properly detect the existence of breast lesions using digital *** proposed model involves Gaussian filter based pre-processing and Tsallis entropy based image *** addition,Deep Convolutional Neural Network based Residual Network(ResNet 34)is applied for feature extraction ***,a hyper parameter tuning process using chimp optimization algorithm(COA)is applied to tune the parameters involved in ResNet 34 *** wavelet neural network(WNN)is used for the classification of digital mammograms for the detection of breast *** ADL-BCD method is evaluated using a benchmark dataset and the results are analyzed under several performance *** simulation outcome indicated that the ADL-BCD model outperforms the state of art methods in terms of different measures.

关键词： Breast cancer digital mammograms deep learning wavelet neural network Resnet 34 disease diagnosis

Term-Dependent Confidence Normalisation for Out-of-Vocabulary Spoken Term Detection

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 Computer Science & Technology 2012年第2期27卷 358-375页

作者： javier Tejedo Simon King Joe Frankel Centre for Speech Technology Research University of Edinburgh10 Crichton Street Human Computer Technology Laboratory (HCTLab) School of Computer Engineering and Telecommunication University Autonomous of MadridAvenue Francisco Tomás y Valiente 1128049MadridSpain

An important component of a spoken term detection （STD） system involves estimating confidence measures of hypothesised detections.A potential problem of the widely used lattice-based confidence estimation,however,is that the confidence scores are treated uniformly for all search terms,regardless of how much they may differ in terms of phonetic or linguistic *** problem is particularly evident for out-of-vocabulary （OOV） terms which tend to exhibit high intra-term *** address the impact of term diversity on confidence measures,we propose in this work a term-dependent normalisation technique which compensates for term diversity in confidence *** first derive an evaluation-metric-oriented normalisation that optimises the evaluation metric by compensating for the diverse occurrence rates among terms,and then propose a linear bias compensation and a discriminative compensation to deal with the bias problem that is inherent in lattice-based confidence measurement and from which the Term Specific Threshold （TST） approach *** tested the proposed technique on speech data from the multi-party meeting domain with two state-ofthe-art STD systems based on phonemes and words *** experimental results demonstrate that the confidence normalisation approach leads to a significant performance improvement in STD,particularly for OOV terms with phonemebased systems.

关键词： confidence estimation discriminative model spoken term detection speech recognition

Hotspot of Adult Cuban Treefrog and Cane Toad Multi-organ Abnormality in Suburban South-west Florida

在线全文

学校读者我要写书评

暂无评论

Asian Herpetological Research 2020年第2期11卷 139-154页

作者： Sharon Pratt ANZALDUA javier GOLDBERG Private University 27427 Horne Ave Bonita SpringsFlorida 34135USA Instituto de Bio y Geociencias del NOA(IBIGEO-CONICET) CCT-Salta9 de Julio 14Rosario de LermaSalta 4405Argentina

This study represents a continuation of the Florida hotspot of tadpole abnormality found in the Southwest Florida suburban roadside drainage ditches in 2012 to determine if the adult frogs and toads frequenting the study sites were anatomically *** gross examination of all organs included 397 adult anurans and 40 metamorphs representing five anuran species:Osteopilus septentrionalis(N=364),Rhinella marina(N=60),Lithobates sphenocephala(N=7),Anaxyrus terrestris(N=5)and Anaxyrus americanus(N=1).The gonads,liver,kidney and intestines were abnormal at a frequency of 87.4%.The few normal anurans(12.6%)were females and young male *** found a significant difference in organ abnormality type and f requency between *** all f rog and toad males had testicular abnormality(92%)with only 6%with normal testes,whereas the female gonad abnormality was lower,at 41.6%.Hermaphroditism was found in both sexes at a frequency of 26.2%.The toads had a significantly higher frequency of hermaphroditism than the *** toad hermaphroditism frequency was found to be 40%,whereas the frog hermaphroditism 23.3%.A hermaphrodite Cane toad male with a female phenotype coexisted with the normal male phenotype *** fertility of 27 in situ pairs was *** fertile testicular abnormal male and hermaphrodite pairs produced offspring with abnormal larval *** information adds new evidence of the effect of chemicals on wild populations and the effect on non-target species which has always been underestimated.

关键词： gonad hermaphrodite malformation Osteopilus septentrionalis Rhinella marina

Ceria on alumina support for catalytic pyrolysis of Pavlova sp. microalgae to high-quality bio-oils

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2018年第3期27卷 874-882页

作者： Tevfik Aysu javier Fermoso Aimaro Sanna Institute of Mechanical Process and Energy Engineering (IMPEE) Heriot-Watt University Department of Chemistry Faculty of Education Yuzuncu Yil University

In this work,we report for the first time the in-situ catalytic pyrolysis of Pavlova ***,which has been performed in a fixed-bed reactor in presence of Ce/Al2O3-based *** effects of pyrolysis parameters,such as temperature and catalyst were studied on the products yield distribution and biooil composition,among *** showed that all catalysts increased the bio-oil yield with respect to the non-catalytic runs and reduced the O/C ratio from 0.69（Pavlova sp.）to 0.1–0.15,which is close to that of crude *** terms of bio-oil oxygen content,Mg Ce/Al2O3presented the best performance with a reduction of more than 30%,from 14.1 to 9.8 wt%,of the oxygen concentration in comparison with thermal ***,Ni Ce/Al2O3gave rise to the highest aliphatics/aromatics *** elemental and gas analysis indicates that N was partially removed from the catalytic bio-oils in the gas phase in forms of NH3and HCN.

关键词： Bio-oil Pavlova sp. Pyrolysis Deoxygenation Catalyst Ceria