检索结果-南通市图书馆

Swarming Computational Techniques for the Influenza Disease System

Computers, Materials & Continua 2022年第12期73卷 4851-4868页

作者： Sakda Noinang Zulqurnain Sabir Gilder Cieza Altamirano Muhammad Asif Zahoor Raja Manuel Jesús Sànchez-Chero María-verónica Seminario-Morales Wajaree Weera Thongchai Botmart Department of Mathematics Statistics and Computer Faculty of ScienceUbon Ratchathani UniversityUbon Ratchathani34190Thailand Department of Mathematics and Statistics Hazara UniversityMansehra21120Pakistan Universidad Nacional Autonoma de Chota Cajamarca06121Peru Future Technology Research Center National Yunlin University of Science and Technology123 University RoadSection 3DouliouYunlin64002Taiwan Universidad Nacional de Frontera SullanaPeru Department of Mathematics Faculty of ScienceKhon Kaen UniversityKhon Kaen40002Thailand

The current study relates to designing a swarming computational paradigm to solve the influenza disease system(IDS).The nonlinear system’s mathematical form depends upon four classes:susceptible individuals,infected people,recovered individuals and cross-immune *** solutions of the IDS are provided by using the artificial neural networks(ANNs)together with the swarming computational paradigm-based particle swarmoptimization(PSO)and interior-point scheme(IPA)that are the global and local search *** ANNs-PSO-IPA has never been applied to solve the *** a merit function in the sense of mean square error is constructed using the differential form of each class of the IDS and then optimized by the *** correctness and accuracy of the scheme are observed to perform the comparative analysis of the obtained IDS results with the Adams solutions(reference solutions).An absolute error in suitable measures shows the precision of the proposed ANNs procedures and the optimization efficiency of the ***,the reliability and competence of the proposed computing method are enhanced through the statistical performances.

关键词： Disease influenza model reference results particle swarm optimization artificial neural networks interior-point scheme statistical investigations

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

Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens

引用

International Journal of Ophthalmology(English edition) 2015年第3期8卷 501-507页

作者： David P.Piero Vicente J.Camps María L.Ramón verónica Mateo Rafael J.Pérez-Cambrodí Grupo de óptica y Percepción Visual (GOPV).Department of Optics Pharmacology and Anatomy University of Alicante San Vicente del Raspeig Alicante 03690 Spain Department of Ophthalmology (Oftalmar) Vithas Medimar International Hospital Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual) Alicante 03016 Spain

AIM : To evaluate the prediction error in intraocular lens(IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the prediction of the effective lens position(ELP).METHODS: Retrospective study including a total of 25 eyes of 13 patients(age, 50 to 83y) with previous cataract surgery with implantation of the Lentis Mplus LS-312 IOL(Oculentis Gmb H, Germany). In all cases, an adjusted IOL power(P IOLadj) was calculated based on Gaussian optics using a variable keratometric index value(n kadj) for the estimation of the corneal power(P kadj) and on a new value for ELP(ELP adj) obtained by multiple regression *** P IOLadj was compared with the IOL power implanted(P IOLReal) and the value proposed by three conventional formulas(Haigis, Hoffer Q and Holladay Ⅰ).RESULTS: P IOLReal was not significantly different than P IOLadj and Holladay IOL power(P >0.05). In the Bland and Altman analysis, P IOLadj showed lower mean difference(-0.07 D) and limits of agreement(of 1.47 and-1.61 D)when compared to P IOLReal than the IOL power value obtained with the Holladay formula. Furthermore, ELP adj was significantly lower than ELP calculated with other conventional formulas(P <0.01) and was found to be dependent on axial length, anterior chamber depth and P kadj. CONCLUSION: Refractive outcomes after cataract surgery with implantation of the multifocal IOL Lentis Mplus LS-312 can be optimized by minimizing thekeratometric error and by estimating ELP using a mathematical expression dependent on anatomical factors.

关键词： Mplus multifocalintraocularlens keratometry effective lens position intraocular lens power

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

Atmospheric Pollutants in a Commercial Region of Fortaleza, Ceará, Brazil: Integration of Health, Environment and Economy in Urban Planning to Improve Air Quality

引用

Journal of Geoscience and Environment Protection 2024年第5期12卷 92-112页

作者： Mônica Giovana Alves Cardoso Ratts Brenna Kessy Silva Lima Gilvan Ribeiro dos Santos Fladimir de Lima Gondim Rinaldo Santos Araújo Mona Lisa Moura de Oliveira Francisco Sales Ávila Cavalcante Daniel Silveira Serra Science and Technology Center State University of Cear&#225 Cear&#225 Brazil Department of Chemistry and Environment Federal Institute of Cear&#225 Cear&#225 Brazil Center of Technological Sciences State University of Cear&#225 Cear&#225 Brazil

The accelerated growth of the vehicular fleet, the modernization of large urban centers, and the few adjustments to the road network in Fortaleza have intensified the problems of traffic and emissions of atmospheric pollutants, highlighting the necessity for strategic urban planning initiatives to address the escalating issues of traffic and pollution. With the objective of analyzing the indices of concentrations of atmospheric pollutants and estimating how these levels can affect human health, this work consists of a study of the analysis of air quality in the intense trade region of Fortaleza. For this, the analysis zone was divided into three perimeters (Major - Medium - Minor), where each perimeter was analyzed at 7 am, 12 noon and 5 pm. Concentrations of the type of O3, particulate matter (PM2.5 and PM10), CO2 and HCHO were collected. Our results demonstrate that most of the analyses are within the limits of current legislation;however, at certain times and perimeters, the analyses of CO2 and HCHO exceeded the established limits. In view of the above, we conclude that public policies to control air quality are necessary to reduce the damage to human health and the environment caused by pollutants.

关键词： Air Quality Urban Planning Particulate Material Health Impacts

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

不同手术对高龄股骨粗隆间骨折患者髋关节功能及术后恢复的影响

引用

川北医学院学报 2024年第4期39卷 461-464页

作者：李祎李奎蒙郑海张家口市第一医院骨外科河北张家口075000

目的:探讨不同手术治疗高龄股骨粗隆间骨折对患者髋关节功能及术后恢复的影响。方法:根据手术方式的不同将86例高龄股骨粗隆间骨折患者分为采用内固定(股骨近端防旋髓内钉)治疗的A组和采用人工股骨头置换术治疗的B组,每组各43例。比较... 详细信息

目的:探讨不同手术治疗高龄股骨粗隆间骨折对患者髋关节功能及术后恢复的影响。方法:根据手术方式的不同将86例高龄股骨粗隆间骨折患者分为采用内固定(股骨近端防旋髓内钉)治疗的A组和采用人工股骨头置换术治疗的B组,每组各43例。比较两组住院时间、切口长度、手术时间、卧床时间、术中出血、骨折愈合时间、并发症发生情况、炎症反应、骨代谢指标、疼痛、髋关节功能及生活能力。结果:B组切口长度、手术时间及术中出血量均高于A组,但住院时间、卧床时间及骨折愈合时间均短于A组(P0.05)。结论:人工股骨头置换术治疗高龄股骨粗隆间骨折,患者术后恢复更快,炎症、骨代谢及术后疼痛情况更好,有利于髋关节、生活能力恢复。

关键词：股骨粗隆间骨折高龄置换髓内钉内固定髋关节功能

来源：

维普期刊数据库博看期刊

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

Josephson vortices and intrinsic Josephson junctions in the layered iron-based superconductor Ca_(10)(Pt_(3)As_(8))((Fe_(0.9)Pt_(0.1))_(2)As_(2))_(5)

引用

Chinese Physics B 2022年第9期31卷 128-133页

作者： Qiang-Tao Sui Xiang-Gang qui Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials Laboratory Dongguan 523808China

Modulated electronic state due to the layered crystal structures brings about moderate anisotropy of superconductivity in the iron-based superconductors and thus Abrikosov vortices are expected in the mixed ***,based on the angular and temperature dependent transport measurements in iron-based superconductor Ca_(10)(Pt_(3)As_(8))((Fe_(0.9)Pt_(0.1))_(2)As_(2))_(5) with Tc(≌)12 K,we find clear evidences of a crossover from Abrikosov vortices to Josephson vortices at a crossover temperature T*(≌)7 K,when the applied magnetic field is parallel to the superconducting FeAs layers,i.e.,the angle between the magnetic field and the FeAs layers θ=0°.This crossover to Josephson vortices is demonstrated by an abnormal decrease(increase)of the critical current(flux-flow resistance)below T*,in contrast to the increase(decrease)of the critical current(flux-flow resistance)above T* expected for Abrikosov ***,when θ is larger than 0.5°,the flux-flow resistance and critical current have no anomalous behaviors across T*.These anomalous behaviors can be understood in terms of the distinct transition from the well-pinned Abrikosov vortices to the weakly-pinned Josephson vortices upon cooling,when the coherent length perpendicular to the FeAs layers ξ⊥ becomes shorter than half of the interlayer distance d/*** experimental findings indicate the existence of intrinsic Josephson junctions below T* and thus quasi-two-dimensional superconductivity in Ca10(Pt3As8)((Fe0.9Pt0.1)2As2)5,similar to those in the cuprate superconductors.

关键词： iron-based superconductor Abrikosov vortices Josephson vortices intrinsic Josephson junctions

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

Astrocytes:everything but the glue

引用

Neuroimmunology and Neuroinflammation 2015年第1期2卷 115-117页

作者： Oscar Gonzalez-Perez veronica Lopez-Virgen Alfredo quiñones-Hinojosa Laboratory of Neuroscience School of PsychologyUniversity of ColimaColimaCol 28040Mexico Department of Neurosurgery Johns Hopkins School of MedicineBaltimoreMD 21201USA

The current knowledge in neuroscience indicates that the neural tissue has two major cell populations:neurons and glia(term derived from the Greek word for glue).Neuronal population is characterized by the capacity to produce action potentials,whereas glial cells are typically identified as the subordinate cell population of *** date,this point of view has changed dramatically,and growing evidence indicates that glial cells play a crucial role in normal mental functions and the pathogenesis of neurological diseases.

关键词： neural knowledge typically

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

Neutralization of Omicron BA.1,BA.5.1.6,BQ.1.3 and XBB1.1 induced by heterologous vaccination Ad5-nCoV and mRNA-1273

引用

Signal Transduction and Targeted Therapy 2023年第5期8卷 2085-2087页

作者： Jesús Hernández Freddy Dehesa-Canseco Alma B.Vázquez-López Mónica Reséndiz-Sandoval Graciela Caire-Juvera Mario Solís-Hernández Olivia Valenzuela Bruno Gómez-Gil verónica Mata-Haro Centro de Investigación en Alimentación y Desarrollo A.C.HermosilloSonora83304Mexico Comisión México-Estados Unidos para la Prevención de la Fiebre Aftosa y otras Enfermedades Exóticas de los Animales(CPA) SENASICASADERCiudad de México05010Mexico Departamento de Ciencias Químico Biológicas Universidad de SonoraHermosilloSonora83000Mexico

Dear Editor,The emergence of Omicron subvariants has required additional boosters to induce a highly neutralizing antibody response.1 However,the new Omicron subvariants BQ.1 and XBB,evade the humoral response induced by multiple mRNA vaccinations and infections.2,3 CansinoBio(Ad5-nCoV)is a single-dose adenovirus vector-based vaccine with high protection against severe disease4 but lower efficacy and antibody response than mRNA ***,hybrid immunity induced by infection plus vaccine or heterologous vaccines has produced a robust neutralizing antibody response.

关键词： vaccination vaccine immunity

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

Detection of integron integrase genes on King George Island, Antarctica

引用

Advances in Polar Science 2015年第1期26卷 30-37页

作者： verónica Antelo Héctor Romero Silvia Batista Unidad de Microbiología Molecular Biogem Instituto de Investigaciones Biológicas Clemente Estable (MEC) Departamento de Ecología y Evolución Facultad de Ciencias UDeLaR Montevideo C.P.11400 Uruguay

The presence and diversity of class 1 integrase gene （intl） sequences were evaluated by PCR using previously designed primers. Two clone libraries were constructed from DNA in sediment and microbial mat samples collected on Fildes Peninsula, King George Island, *** libraries constructed from samples collected at Halfthree Point （HP） and Norma Cove （NC） contained 62 and 36 partial intl sequences, respectively. These sequences clustered into 10 different groups with 〈 95% amino acid identity. Alignment of the deduced amino acid sequences with those from recognized integron-encoded integrases demonstrated the presence of highly conserved motifs characteristic of intl integrases. The HP library contained 42 nucleotide sequences identical to the class 1 intl gene found in a collection of trimethoprim-resistant （Tmpr） Antarctic Enterobacter sp. isolates, previously collected in the same area. These integrons, located on plasmids, had a genetic organization similar to that of pKOX105 from Klebsiella oxytoca. The 20 remaining HP and NC library sequences were similar to integrase sequences previously determined in a metagenomic analysis of environmental samples. We have demonstrated the presence of integron integrase genes in Antarctic sediment samples. About half these genes were very similar to the class 1 integrons found in human- associated microbiota, suggesting that they originated from human-dominated ecosystems. The remaining integrase genes were probably associated with endemic bacteria.

关键词： integrase amplicon library maritime Antarctica

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

Asymptotics of Stationary Navier Stokes Equations in Higher Dimensions

引用

Acta Mathematica Sinica,English Series 2018年第4期34卷 598-611页

作者： Hao JIA Vladimír ?veráK Department of Mathematics University of Minnesota

We show that the asymptotics of solutions to stationary Navier Stokes equations in 4, 5 or 6 dimensions in the whole space with a smooth compactly supported forcing are given by the linear Stokes equation. We do not need to assume any smallness condition. The result is in contrast to three dimensions, where the asymptotics for steady states are different from the linear Stokes equation, even for small data, while the large data case presents an open problem. The case of dimension n = 2 is still harder.

关键词： Navier Stokes equations steady states asymptotics

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

Switchgrass Biochar Effects on Plant Biomass and Microbial Dynamics in Two Soils from Different Regions

引用

Pedosphere 2015年第3期25卷 329-342页

作者： Charlene N.KELLY Francisco C.CALDERóN verónica ACOSTA-MARTíNEZ Maysoon M.MIKHA Joseph BENJAMIN David W.RUTHERFORD Colleen E.ROSTAD Western Carolina University Department of Geosciences and Natural Resources331 Stillwell HallCullowheeNC 28723 (USA) U.S.Geological Survey Denver CO 80225 (USA) USDA-ARS Akron CO 80720 (USA) USDA-ARS Lubbock TX 79403 (USA)

Biochar amendments to soils may alter soil function and fertility in various ways, including through induced changes in the microbial community. We assessed microbial activity and community composition of two distinct clayey soil types, an Aridisol from Colorado （CO） in the U.S. Central Great Plains, and an Alfisol from Virginia （VA） in the southeastern USA following the application of switchgrass （Panicum virgatum） biochar. The switchgrass biochar was applied at four levels, 0%,0, 2.5%, 5%, and 10%, approximately equivalent to biochar additions of 0, 25, 50, and 100 t ha^-1, respectively, to the soils grown with wheat （Triticum aestivum） in an eight-week growth chamber experiment. We measured wheat shoot biomass and nitrogen （N） content and soil nutrient availability and N mineralization rates, and characterized the microbial fatty acid methyl ester （FAME） profiles of the soils. Net N mineralization rates decreased in both soils in proportion to an increase in biochar levels, but the effect was more marked in the VA soil, where net N mineralization decreased from -2.1 to -38.4 mg kg^-1. The 10% biochar addition increased soil pH, electrical conductivity, Mehlich- and bicarbonate-extractable phosphorus （P）, and extractable potassium （K） in both soil types. The wheat shoot biomass decreased from 17.7 to 9.1 g with incremental additions of biochar in the CO soil, but no difference was noted in plants grown in the VA soil. The FAME recovery assay indicated that the switchgrass biochar addition could introduce artifacts in analysis, so the results needed to be interpreted with caution. Non-corrected total FAME concentrations indicated a decline by 457o and 34% with 10% biochar addition in the CO and VA soils, respectively, though these differences became nonsignificant when the extraction efficiency correction factor was applied. A significant decline in the fungi：bacteria ratio was still evident upon correction in the CO soil with biochar. Switchgrass biochar had the p

关键词： correction factor extraction efficiency fatty acid methyl ester profile nitrogen mineralization soil microbial community soil nutrient availability wheat

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

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：