检索结果-南通市图书馆

Risk of imported malaria infections in Zanzibar: a cross-sectional study

Infectious Diseases of Poverty 2023年第4期12卷 100-100页

作者： Bakar S.Fakih Aurel Holzschuh Amanda Ross Logan Stuck Ramadhan Abdul Abdul-Wahid H.Al-mafazy Imani Irema Abdallah mbena Sumaiyya G.Thawer Shija J.Shija safia m.aliy Abdullah Ali Günther Fink Joshua Yukich manuel W.Hetzel Ifakara Health Institute Dar es Salaam Tanzania Swiss Tropical and Public Health Institute Allschwil Switzerland University of Basel Basel Switzerland Department of Biological Sciences Eck Institute for Global Health University of Notre Dame Notre Dame USA Tulane University School of Public Health and Tropical medicine New Orleans USA Amsterdam Institute for Global Health and Development Amsterdam Netherlands Zanzibar malaria Elimination Programme Zanzibar United Republic of Tanzania

BackgroundZanzibar has made substantial progress in malaria control with vector control, improved diagnosis, and artemisinin-based combination therapy. Parasite prevalence in the population has remained around 1% but imported infections from mainland Tanzania contribute to sustained local transmission. Understanding travel patterns between mainland Tanzania and Zanzibar, and the risk of malaria infection, may help to control malaria importation to *** rolling cross-sectional survey linked to routine reactive case detection of malaria was carried out in Zanzibar between may 2017 and October 2018. Households of patients diagnosed with malaria at health facilities were surveyed and household members were tested for malaria using rapid diagnostic tests and a sub-sample by quantitative PCR (qPCR). Interviews elicited a detailed travel history of all household members who had travelled within the past two months, including trips within and outside of Zanzibar. We estimated the association of malaria infection with travel destinations in pre-defined malaria endemicity categories, trip duration, and other co-variates using logistic *** 17,891 survey participants, 1177 (7%) reported a recent trip, of which 769 (65%) visited mainland Tanzania. Among travellers to mainland Tanzania with travel destination details and a qPCR result available, 241/378 (64%) reported traveling to districts with a ‘high’ malaria endemicity and for 12% the highest endemicity category was ‘moderate’. Travelers to the mainland were more likely to be infected with malaria parasites (29%, 108/378) than those traveling within Zanzibar (8%, 16/206) or to other countries (6%, 2/17). Among travellers to mainland Tanzania, those visiting highly endemic districts had a higher odds of being qPCR-positive than those who travelled only to districts where malaria-endemicity was classified as low or very low (adjusted odd ratio = 7.0, 95% confidence interval: 1.9–25.5). Among travel

关键词： malaria Importation Travel Zanzibar Tanzania Elimination

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

mechanism of Thermally Radiative Prandtl Nanofluids and Double-Diffusive Convection in Tapered Channel on Peristaltic Flow with Viscous Dissipation and Induced magnetic Field

引用

Computer modeling in Engineering & Sciences 2024年第2期138卷 1501-1520页

作者： Yasir Khan safia Akram maria Athar Khalid Saeed Alia Razia A.Alameer Department of mathematics University of Hafr Al-BatinHafr Al-Batin31991Saudi Arabia mCS National University of Sciences and TechnologyIslamabadPakistan SEECS National University of Sciences and TechnologyIslamabadPakistan College of Aeronautical Engineering National University of Sciences and TechnologyIslamabadPakistan

The application of mathematical modeling to biological fluids is of utmost importance, as it has diverse applicationsin medicine. The peristaltic mechanism plays a crucial role in understanding numerous biological flows. In thispaper, we present a theoretical investigation of the double diffusion convection in the peristaltic transport of aPrandtl nanofluid through an asymmetric tapered channel under the combined action of thermal radiation andan induced magnetic field. The equations for the current flow scenario are developed, incorporating relevantassumptions, and considering the effect of viscous dissipation. The impact of thermal radiation and doublediffusion on public health is of particular interest. For instance, infrared radiation techniques have been used totreat various skin-related diseases and can also be employed as a measure of thermotherapy for some bones toenhance blood circulation, with radiation increasing blood flow by approximately 80%. To solve the governingequations, we employ a numerical method with the aid of symbolic software such as mathematica and *** velocity, magnetic force function, pressure rise, temperature, solute (species) concentration, and nanoparticlevolume fraction profiles are analytically derived and graphically displayed. The results outcomes are compared withthe findings of limiting situations for verification.

关键词： Double diffusion convection thermal radiation induced magnetic field peristaltic flow tapered asymmetric channel viscous dissipation Prandtl nanofluid

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

Case Report and Clinical management of a Case of Osteogenesis Imperfecta Detected in the Prenatal Period

引用

Open Journal of Obstetrics and Gynecology 2024年第7期14卷 996-1002页

作者： Amina Chaieb Oumayma Ben Rejeb Samar Knaz Yasmine Ben Ali Syrine Chelly safia Ernez mouna Derouiche Department of Gynecology and Obstetrics Farhat Hached University Hospital Sousse Tunisia Faculty of medicine Ibn Al Jazzar University of Sousse Sousse Tunisia

Osteogenesis imperfecta is a hereditary disease characterized by bone fragility due to a defect in type I collagen synthesis. The diagnosis is typically suspected based on suggestive ultrasound findings and confirmed through genetic studies. We present a case of osteogenesis imperfecta suspected during obstetrical ultrasound at 19 weeks’ gestation, which was later confirmed radiographically through computed tomography. Due to the severity of the condition, therapeutic termination of pregnancy was indicated.

关键词： Osteogenesis Imperfecta Ultrasound Screening Antenatal Diagnosis

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

Characters of Nummulites multiplicutiospiralis *** the Qarara Formation,maghagha,Nile Valley,Egypt

引用

Acta Geologica Sinica(English Edition) 2021年第2期95卷 342-347页

作者： safia AL mENOUFY University of Ain Shams Faculty of EducationDepartment of Biological&Geological SciencesCairo11341Egypt

Nummulites multiplicutiospiralis *** described and illustrated for both generations from a claystone of Lutetian age in the middle Eocene Qarara Formation,maghagha,Nile valley,*** considered to be Nummulites gizehensis,we describe this form as a new species based on diameter of the test and protoconch sizes,septal shape and *** primary feature of this species is spiral multiplication,seen in spiral *** species is also characterized morphologically by lenticular to flat tests with rounded periphery,wrinkled to broadly meandering septal filaments and few granules on the periphery in microspheric *** granules are spirally arranged on the septal filaments in megalospheric *** are longer than high and the spire is *** new taxon belongs to the Nummulites partschi Group,Subgroup *** coiling in the spiral may develop through ontogeny as in ***,the species which was considered to be an index species in the southern Tethys(Boukhary et al.,1982 and Boukhary et al.2010).The characters of the new species,as well as its retrogenesis and reflexive coiling,should be further studied in general in Nummulites spp.,to understand the importance of such characters phylogenetically.

关键词： invertebrate paleontology foraminifera Nummulites Eocene Nile Valley Egypt

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

magnetohydrodynamic peristaltic flow of a hyperbolic tangent fluid in a vertical asymmetric channel with heat transfer

引用

Acta mechanica Sinica 2011年第2期27卷 237-250页

作者： Sohail Nadeem safia Akram Department of mathematics Quaid-i-Azam University 45320 Islamabad 44000 Pakistan Department of Electrical (Telecom) Engineering Military College of Signals National University of Sciences and Technology Rawalpindi 46000 Pakistan

In the present paper we discuss the magnetohydrodynamic （mHD） peristaltic flow of a hyperbolic tangent fluid model in a vertical asymmetric channel under a zero Reynolds number and long wavelength approximation. Exact solution of the temperature equation in the absence of dissipation term has been computed and the analytical ex- pression for stream function and axial pressure gradient are established. The flow is analyzed in a wave frame of reference moving with the velocity of wave. The expression for pressure rise has been computed numerically. The physical features of pertinent parameters are analyzed by plotting graphs and discussed in detail.

关键词： mHD flow Hyperbolic tangent fluid Vertical asymmetric channel Heat transfer

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

On the Validity and Evolution of Assilina Species during the Ypresian–Lutetian:Example from Bir Dakhl,Eastern Desert,Egypt

引用

Acta Geologica Sinica(English Edition) 2021年第4期95卷 1080-1085页

作者： safia AL mENOUFY mohamed BOUKHARY University of Ain Shams Faculty of EducationDepartment of Biological&Geological SciencesCairo 11341Egypt Geology Department University of Ain ShamsFaculty of ScienceCairo 11566Egypt

The genus Assilina is a taxon within the Nummulitacea that appeared early in the Ypresian(Early Eocene)and continued until the end of the Lutetian(middle Eocene).Thus,this taxon could be useful for the chronostratigraphy of this time *** Eocene rocks in southern Galala,Egypt are exposed at Bir *** section includes marl sediments with debris flow shallow-marine facies deposits laid down during early Eocene times and includes fossils of large foraminifera:Assilina placentula Deshayes,1838 and Nummulites burdigalensis de la Harpe,*** are systematically treated,described and *** burdigalensis belongs to the *** group,and Assilina placentula belongs to the group of Assilina *** assumption is based on qualitative morphology and quantitative *** species,together with Operculina libyca Schwager,1883,enable the assignment of the Bir Dakhl(D5-40 Section)to the Early Eocene,Ypresian(SBZ10 of Serra-Kiel et al.,1998)supporting an earlier opinion that Assilina placentula belongs to that zone in the calibrated larger foraminiferal biostratigraphic zonation.

关键词： foraminifera Assilina evolution Eocene Galala Egypt

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

Hybrid Effects of Thermal and Concentration Convection on Peristaltic Flow of Fourth Grade Nanofluids in an Inclined Tapered Channel: Applications of Double-Diffusivity

引用

Computer modeling in Engineering & Sciences 2021年第6期127卷 901-922页

作者： safia Akram Alia Razia mCS National University of Sciences and TechnologyIslamabadPakistan

This article brings into focus the hybrid effects of thermal and concentration convection on peristaltic pumping of fourth grade nanofluids in an inclined tapered ***,the brief mathematical modelling of the fourth grade nanofluids is provided along with thermal and concentration *** Lubrication method is used to simplify the partial differential equations which are tremendously ***,analytical technique is applied to solve the differential equations that are strongly nonlinear in nature,and exact solutions of temperature,volume fraction of nanoparticles,and concentration are *** and graphical findings manifest the influence of various physical flow-quantity *** is observed that the nanoparticle fraction decreases because of the increasing values of Brownian motion parameter and Dufour parameter,whereas the behaviour of nanoparticle fraction is quite opposite for thermophoresis *** is also noted that the temperature profile decreases with increasing Brownian motion parameter values and rises with Dufour parameter ***,the concentration profile ascends with increasing thermophoresis parameter and Soret parameter values.

关键词： Nanofluids thermal and concentration convection peristaltic flow inclined tapered channel fourth grade fluid

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

Securing Copyright Using 3D Objects Blind Watermarking Scheme

引用

Computers, materials & Continua 2022年第9期72卷 5969-5983页

作者： Hussein Abulkasim mona Jamjoom safia Abbas Faculty of Science New Valley UniversityEl-Kharga 72511Egypt Department of Computer Sciences College of Computer and Information SciencePrincess Nourah Bint Abdulrahman UniversityRiyadh 11671Saudi Arabia

Recently,securing Copyright has become a hot research topic due to rapidly advancing information *** a host cover,watermarking methods are used to conceal or embed sensitive information messages in such a manner that it was undetectable to a human observer in contemporary *** media covers may often take any form,including audio,video,photos,even DNA data *** this work,we present a new methodology for watermarking to hide secret data into 3-D *** technique of blind extraction based on reversing the steps of the data embedding process is *** implemented technique uses the features of the 3-D object vertex’discrete cosine transform to embed a grayscale image with high *** coefficient of vertex and the encrypted picture pixels are used in the watermarking ***,the extraction approach is fully blind and is dependent on the backward steps of the encoding procedure to get the hidden *** distance,Euclidean distance,manhattan distance,and the Cosine distance are used to evaluate and test the performance of the proposed *** visibility and imperceptibility of the proposed method are assessed to show the efficiency of our work compared to previous corresponding methods.

关键词： Discrete cosine transform 3-D object copyright watermarking

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

Plant Leaf Diseases Classification Using Improved K-means Clustering and SVm Algorithm for Segmentation

引用

Computers, materials & Continua 2023年第7期76卷 367-382页

作者： mona Jamjoom Ahmed Elhadad Hussein Abulkasim safia Abbas Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityRiyadhSaudi Arabia Department of Computer Science Faculty of Computers and InformationSouth Valley UniversityQena83523Egypt Faculty of Science New Valley UniversityEl-Kharga72511Egypt Department of Computer Science Faculty of Computer and Information SciencesAin Shams UniversityCairo11566Egypt

Several pests feed on leaves,stems,bases,and the entire plant,causing plant *** a result,it is vital to identify and eliminate the disease before causing any damage to *** detecting plant disease and treating it is pretty challenging in this *** processing is employed to detect plant disease since it requires much effort and an extended processing *** main goal of this study is to discover the disease that affects the plants by creating an image processing system that can recognize and classify four different forms of plant diseases,including Phytophthora infestans,Fusarium graminearum,Puccinia graminis,tomato yellow leaf ***,this work uses the Support vector machine(SVm)classifier to detect and classify the plant disease using various steps like image acquisition,Pre-processing,Segmentation,feature extraction,and *** gray level co-occurrence matrix(GLCm)and the local binary pattern features(LBP)are used to identify the disease-affected portion of the plant *** to experimental data,the proposed technology can correctly detect and diagnose plant sickness with a 97.2 percent accuracy.

关键词： SVm machine learning GLCm algorithm K-means clustering LBP

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

Evaluation of adsorption capacities of humic acids extracted from Algerian soil on polyaniline for application to remove pollutants such as Cd(Ⅱ), Zn(Ⅱ) and Ni(Ⅱ) and characterization with cavity microelectrode

引用

Journal of Environmental Sciences 2011年第7期23卷 1095-1103页

作者： Achour Terbouche Chafia Ait Ramdane-Terbouche Didier Hauchard safia Djebbar Center of Scientific Research and Technical in Physical and Chemical Analysis Laboratory of Hydrometallurgy and molecular Inorganic Chemistry Faculty of Chemistry University of Sciences and Technology Houari Boumediene Sciences Chimiques de Rennes UMR CNRS 6226 Ecole Nationale Supe'rieure de Chimie de Rennes avenue du ge'ne'ral Leclerc Universite' Europe'enne de Bretagne 12 Avenue Janvier 35000 Rennes France

The adsorption capacities of new humic acids isolated from Yakouren forest （YHA） and Sahara （Tamenrasset： THA） soils （Algeria） and commercial humic acid （PFHA） on polyaniline emeraldine base （PEB） were studied at pH 6.6. Also the adsorption of heavy metals such as Cd 2＋ , Zn 2＋ and Ni 2＋ on humic acid-polyaniline systems （HA-PEB） was investigated at the same conditions. HA-PEB compounds were characterized by scanning electron microscopy （SEm）, infrared spectrometry and cavity microelectrode. In addition, batch adsorption and cavity microelectrode were used in the adsorption study of Cd 2＋ , Zn 2＋ and Ni 2＋ on HA-PEB. To develop biocaptors of polluting metals using a cavity microelectrode modified by HA-PEB systems, the adsorption kinetic and adsorption capacity were investigated. The SEm analysis showed that the presence of humic acid affected the PEB surface and caused the formation of a granular morphology. The maximum adsorption capacities （q max ） of PFHA, THA and YHA determined by adsorption isotherms were 91.31, 132.1 and 151.0 mg/g, respectively. Batch adsorption results showed that q max of Cd 2＋ , Zn 2＋ and Ni 2＋ on HA-PEB followed the order： THA-PEB YHA-PEB PFHA-PEB. The voltammograms obtained with HA-PEB modified cavity microelectrode showed the appearance of new redox couples reflecting the adsorption of HA on PEB. metal-humic acid-polyaniline voltammograms were characterized by appearance of oxidation-reduction couples or reduction wave corresponding to metal. Finally, the result may be exploited to develop a biocaptor based on the cavity microelectrode amended by THA-PEB and YHA-PEB.

关键词： adsorption capacity forest and Sahara humic acids polyaniline heavy metal modified cavity microelectrode.

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：