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Dysprosium.oxide,alum.na,and graphene oxide reinforced polycaprolactone thin film.:Therm.l stability,m.rphology,and cell viability

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Journal of Rare Earths 2024年第7期42卷 1337-1343,I0005页

作者： mohamed Tharwat elabbasy mohamed R.Atteya m.i A.Sam.k m.usa abdelrahm.n Tahani Alm.hm.ud m.A.el-m.rsy A.A.m.nazea m.F.H.abd el-Kader Departm.nt of Public Health College of Public Health and Health InformaticsUniversity of Ha'ilHa'il2440Saudi Arabia Food Control Departm.nt Faculty of Veterinary MedicineZagazig UniversityZagazig44519Egypt Departm.nt of Physical Therapy College of Applied Medical SciencesUniversity of Ha'ilHa'ilSaudi Arabia Departm.nt of Histology and Cell Biology Faculty of MedicineZagazig UniversityZagazig44519Egypt College of Nursing University of Ha'ilHa'ilSaudi Arabia College of Science and Hum.nities in Al-Kharj Physics DepartmentPlasma Technology and Material Science UnitPrince Sattam Bin Abdulaziz UniversityAl-kharj11942Saudi Arabia Physics Departm.nt Faculty of ScienceUniversity of DamiettaNew Damietta34517Egypt Spectroscopy Departm.nt Physics Research InstituteNational Research CentreDokki12622GizaEgypt Biophysics Departm.nt Faculty of ScienceCairo UniversityGizaEgypt

Developing a biom.terial for wound healing applications is still a ***,dysprosium.oxide(Dy_(2)O_(3)),alum.num.oxide(Al_(2)O_(3)),and graphene oxide(GO)were em.edded in cast film. based on polycaprolactone(PCL)to be exam.ned for wound dressing *** techniques were used to characterize the fabricated film. including X-ray diffraction(XRD),Fourier transform.infrared spectroscopy(FTIR),Ram.n,and scanning electron m.croscopy(SEm.,besides their biological *** therm.gravim.tric analysis(TGA)exhibits high therm.l stability as the scaffold weight decreases slightly to 98.6%after raising the tem.erature from.room.tem.erature to 280℃.The cell viability was investigated and it is shown that the viable cells grow up to approxim.tely 93%at 75μg/***,the cell attachm.nt shows excellent behavior as the cells attach on m.st of the surface of the m.dified PCL which shows high biocom.atibility.

关键词： Wound healing Polycaprolactone Dy_(2)O_(3) Al_(2)O_(3) Biocom.atible Rare earths

Depositional Environm.nt,Petrophysical Evaluation and electrical Properties of Zeit Form.tion,Northwestern Shore of Gulf of Suez,Egypt

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Journal of Earth Science 2024年第5期35卷 1720-1737页

作者： mohamed m.Gom.a Em.d A.abd el Aziz Geophysical Sciences Departm.nt National Research CentreEl-Behoos St.DokkiCairo 12622Egypt

The Zeit sand reservoir is one of the m.st prolific form.tions at Northwestern side of the Gulf of *** this research we will try to coordinate between electrical,petrophysical properties,depositional environm.nt and facies discrim.nation in order to evaluate the hydrocarbon potentiality of studied Zeit *** statistical param.ters for potassium.K),thorium.Th)and Th/U ratio contents have a general increase towards northwestern parts,whereas uranium.U)content has a general increase towards southeastern *** sandstone facies is distinguished from.the other facies by its thorium.content>4 ppm.U has high carbonate content(U≥1 ppm..Rocks'electrical properties vary greatly depending on a num.er of *** m.asurem.nts were taken at frequencies range of(5×10^(-4)Hz-100 kHz)for fully saturated sam.les(clayey sandstone)with NaCl(20 gm.L).As salinity,clay content,and frequency increase,consequently does the electrical *** continental condition are present in northwestern part(back-sea)which is distinguished by high K percent,high Th,high Th/U ratio,and low U *** K,Th,and Th/U ratio contents,with high U contents,characterize the m.rine depositional environm.nt that existed around the east and southeastern parts(foresea coincide with the dipping of strata).Furtherm.re,the studied Zeit Form.tion has good petrophysical properties that coincide with m.rine *** m.ddle and eastern parts(around ISS-94 and CSS-288)is a good reservoir(porosity 36%-39%,shale content<15%,hydrocarbon saturation 71%-92%,and net pay thickness 17-63 feet).

关键词： Zeit Form.tion petrophysical evaluation depositional environm.nt Spectral Gam.a Ray electrical properties gulf of Suez sedim.ntology

Eco-toxicity and health risk assessm.nt of polycyclic arom.tic hydrocarbons in surface sedim.nts of Burullus Lake in Egypt

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China Geology 2024年第3期7卷 460-468页

作者： Hanan E Osm.n mohamed H E el-m.rsy Hazem.T abd el-Ham.d Departm.nt of Biology Faculty of Applied ScienceUmm Al-Qura UniversityMecca 24382Saudi Arabia Deanship of Scientific Research Umm Al-Qura UniversityMakkah 24372Saudi Arabia National Institute of Oceanography and Fisheries(NIOF) Cairo 11865Egypt Botany and m.crobiology Departm.nt Faculty of ScienceAl-Azhar UniversityCairo 11651Egypt

Polycyclic arom.tic hydrocarbons(PAHs)are ubiquitous environm.ntal contam.nants of growing concern due to their potential ecological and hum.n health *** study presents a com.rehensive assessm.nt of PAHs contam.nation in the surface sedim.nts of Burullus Lake,a vital and second largest delta lake in *** aim.was to evaluate the eco-toxicity and potential health risks associated with the presence of these *** seven sedim.nt sam.les were collected from.various drains in the southern part of Burullus *** extraction m.thod was em.loyed to extract PAHs(16PAHs)from.the sedim.nt ***,target com.ounds were located using *** results showed that sam.les contained PAHs levels ranging from.0.038×10^(-6)to 0.459×10^(-6),which is considered heavily polluted by the European standard for PAHs ***,there was no apparent source of PAHs in the elKhashah drain or the Brinbal Canal,as HPLC found none of the *** m.st prevalent com.ound in sedim.nt sam.les along the study area was *** diagnostic indices in the present study indicated that the hydrocarbons in the region originated from.pyrolytic and m.n-m.de sources along the drains of Burullus *** principal com.onent analysis(PCA)and diagnostic ratios revealed that coal com.ustion and pyrolytic sources were responsible for the PAHs contam.nation in the surface *** non-carcinogenic risk(HI),which is the product of the HQs for the adult and child populations,respectively,was *** values under 1,therefore,dem.nstrated that they had no carcinogenic effects on hum.n *** and m.Qs in the sedim.nts of Burullus Lake do not have a cancer-causing im.act on *** the safety of nearby wildlife,aquatic life,and people,all activities that raise petroleum.hydrocarbon levels in Burullus Lake m.st be adequately regulated and *** to the ecological risk assessm.nt,there is little chance that PAHs will be found

关键词： Polycyclic arom.tic hydrocarbons Diagnostic indices Toxicity Delta lake sedim.nt Burullus Lake Hum.n health risk Aquatic ecosystem HPLC Coal com.ustion

Privacy-preserved learning from.non-i.i.d data in fog-assisted IoT:A federated learning approach

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Digital Com.unications and Networks 2024年第2期10卷 404-415页

作者： mohamed abdel-Basset Hossam.Hawash Nour m.ustafa Im.an Razzak mohamed abd elfattah Faculty of Com.uters and Inform.tics Zagazig UniversityZagazigSharqiyah44519Egypt School of Engineering and Inform.tion Technology University of New South Wales@ADFACanberraACT2600Australia Deakin University Geelong Waurn Ponds CampusAustralia Com.uter Science Departm.nt Misr Higher Institute for Commerce and ComputersMansoura35511Egypt

With the prevalence of the Internet of Things(IoT)system.,sm.rt cities com.rise com.lex networks,including sensors,actuators,appliances,and cyber *** com.lexity and heterogeneity of sm.rt cities have becom. vulnerable to sophisticated cyber-attacks,especially privacy-related attacks such as inference and data poisoning *** Learning(FL)has been regarded as a hopeful m.thod to enable distributed learning with privacypreserved intelligence in IoT *** though the significance of developing privacy-preserving FL has drawn as a great research interest,the current research only concentrates on FL with independent identically distributed(i.i.d)data and few studies have addressed the non-i.i.d *** is known to be vulnerable to Generative Adversarial Network(GAN)attacks,where an adversary can presum. to act as a contributor participating in the training process to acquire the private data of other *** paper proposes an innovative Privacy Protection-based Federated Deep Learning(PP-FDL)fram.work,which accom.lishes data protection against privacy-related GAN attacks,along with high classification rates from.non-i.i.d ***-FDL is designed to enable fog nodes to cooperate to train the FDL m.del in a way that ensures contributors have no access to the data of each other,where class probabilities are protected utilizing a private identifier generated for each *** PP-FDL fram.work is evaluated for im.ge classification using sim.le convolutional networks which are trained using m.IST and CIFAR-10 *** em.irical results have revealed that PF-DFL can achieve data protection and the fram.work outperform. the other three state-of-the-art m.dels with 3%–8%as accuracy im.rovem.nts.

关键词： Privacy preservation Federated learning Deep learning Fog com.uting Sm.rt cities

Pyronaridine com.ined with dim.nazene aceturate inhibits Babesia in vitro and in vivo

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Asian Pacific Journal of Tropical Biom.dicine 2024年第3期14卷 93-99页

作者： Shim.a abd el-Salam.el-Sayed mohamed Z.Sayed-Ahm.d Shaim.a Ahm.d Awad Ali Nourah Alsadaan Nawazish Alam.m.hm.ud S.Alkhoudary Ikuo Igarashi mohamed abdo Rizk National Research Center for Protozoan Diseases Obihiro University of Agriculture and Veterinary MedicineInada-ChoObihiroHokkaido 080-8555Japan Departm.nt of Biochem.stry and Chem.stry of Nutrition Faculty of Veterinary MedicineMansoura UniversityMansoura 35516Egypt Departm.nt of Clinical Pharm.cy College of PharmacyJazan UniversityJazan 45142Saudi Arabia m.dical-Surgical Departm.nt College of NursingJouf UniversitySakaka 72388Saudi Arabia Critical Care and Em.rgency Nursing Faculty of NursingMansoura UniversityEgypt College of Nursing Jouf UniversitySakaka 72388Saudi Arabia Faculty of Pharm.cy Mansoura UniversityMansoura 35516DakahliaEgypt Departm.nt of Internal m.dicine and Infectious Diseases Faculty of Veterinary MedicineMansoura UniversityMansoura 35516Egypt

Objective:To evaluate the com.ination therapy of pyronaridine tetraphosphate and dim.nazene aceturate against Babesia in vitro and in ***:Bioinform.tic analysis was perform.d using atom.pair *** in vitro com.ination test was perform.d against Babesia bovis and Theileria ***,the in vivo chem.therapeutic efficacy of pyronaridine tetraphosphate in com.ination with dim.nazene aceturate was investigated against the growth of Babesia m.croti in m.ce using a fluorescence inhibitory ***:Pyronaridine tetraphosphate and dim.nazene aceturate exhibited nearly sim.lar m.lecular *** in vitro com.ination of pyronaridine tetraphosphate and dim.nazene aceturate was synergistic on Babesia bovis and additive on Theileria *** addition,5 m./kg pyronaridine tetraphosphate com.ined with 10 m./kg dim.nazene aceturate inhibited Babesia m.croti growth significantly com.ared with those observed after treatm.nt with 25 m./kg dim.nazene aceturate alone from.day 6 post treatm.nt to day 12 post *** com.ination therapy also norm.lized the hem.tological param.ters of infected ***:An oral dose of pyronaridine tetraphosphate com.ined with a subcutaneous dose of dim.nazene aceturate inhibits Babesia in vitro and in m.ce,suggesting it m.ght be a new paradigm.for the treatm.nt of babesiosis.

关键词： Babesia Pyronaridine tetraphosphate Dim.nazene aceturate Babesiosis Theileria

Genetic Variability and Phenotypic Correlations Study am.ng Grain Quality Traits and m.neral elem.nts Concentrations in Colored and Non-Colored Rice (Oryza sativa L.)

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Phyton-International Journal of Experim.ntal Botany 2024年第7期93卷 1733-1748页

作者： Adel A.Rezk mohamed m.el-m.lky Heba I.mohamed Hossam.S.el-Beltagi Agricultural Biotechnology Departm.nt College of Agricultural and Food ScienceKing Faisal UniversityAl-Ahsa31982Saudi Arabia Plant Pathology Research Institute Agriculture Research CenterGiza12619Egypt Rice Research and Training Center Field Crop Research InstituteAgriculture Research Center33717Egypt Biological and Geological Sciences Departm.nt Faculty of EducationAin Shams UniversityCairo11511Egypt Biochem.stry Departm.nt Faculty of AgricultureCairo UniversityGiza12613Egypt

Twenty-four rice genotypes were exam.ned to assess genetic variability,heritability,and correlations for seven-grain quality traits,eight nutritional elem.nts,and *** revealed signiﬁcant differences for the quality traits *** every trait under study,the phenotypic coefﬁcient of variation was higher than the correspon-dence genotypic coefﬁcient of *** in a broad sense varied from.29.75%for grain length to 98.31%for the elongation *** percentage recovery had a highly signiﬁcant positive correlation with m.lling and head rice ***,m.lling percentage had a highly positive correlation with head rice *** am.lose percentage,all the genotypes belonged to low am.lose except the Hassawi-1 variety,which had interm.diate am.lose *** nutrition contents of m.gnesium.m.),sodium.Na),potas-sium.K),calcium.Ca),copper(Cu),m.nganese(m.),zinc(Zn),iron(Fe),or protein percentage gave different variations for 24 rice genotypes under all the nutritional *** the 24 genotypes,ten rice genotypes–HighNutrient-1,HighNutrient-2,HighNutrient-9,HighNutrient-8,HighNutrient-3,Hassawi-2,HighNutrient-7,HighNutrient-6,Hassawi-1,and HighNutrient-4–had the highest heist value for all nutritional and protein con-tents,and could be used as a donor to im.roving new *** was a positive and signiﬁcant correlation between m.gnesium.m.,K,Zn and ***,K had a positive correlation with zinc Zn,Fe,and protein *** analysis was divided into two groups:theﬁrst group included all genotypes rich in nutri-ents,while the rem.ining genotypes with low nutritional content were included in the second group.

关键词： Am.lose cluster analysis genotypes grain quality m.neral nutrition rice

A review on the m.lti-scaled structures and m.chanical/therm.l properties of tool steels fabricated by laser powder bed fusion additive m.nufacturing

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International Journal of m.nerals,m.tallurgy and m.terials 2024年第5期31卷 1048-1071页

作者： Huajing Zong Nan Kang Zehao Qin mohamed el m.nsori Arts et m.tiers Institute of Technology MSMPHESAM UniversitéChâlons-en-Champagne F-51006France Texas A&m.Engineering Experim.nt Station Institute for Manufacturing SystemsCollege Station TX77843USA

The laser powder bed fusion(LPBF) process can integrally form.geom.trically com.lex and high-perform.nce m.tallic parts that have attracted m.ch interest,especially in the m.lds *** appearance of the LPBF m.kes it possible to design and produce com.lex conform.l cooling channel system. in ***,LPBF-processed tool steels have attracted m.re and m.re *** com.lex therm.l history in the LPBF process m.kes the m.crostructural characteristics and properties different from.those of conventional m.nufactured tool *** paper provides an overview of LPBF-processed tool steels by describing the physical phenom.na,the m.crostructural characteristics,and the m.chanical/therm.l properties,including tensile properties,wear resistance,and therm.l *** m.crostructural characteristics are presented through a m.ltiscale perspective,ranging from.densification,m.so-structure,m.crostructure,substructure in grains,to ***,a sum.ary of tool steels and their challenges and outlooks are introduced.

关键词： additive m.nufacturing laser powder bed fusion tool steel m.lti-scaled structure m.chanical properties therm.l properties

Optim.zation of Cooperative Relayingm.lecular Com.unications for Nanom.dical Applications

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Com.uter m.deling in Engineering & Sciences 2024年第2期138卷 1259-1275页

作者： Em.n S.Attia Ashraf A.m.Khalaf Fathi E.abd el-Sam.e Saied m.abd el-atty Konstantinos A.Lizos Osam. Alfarraj Heba m.el-Hoseny Departm.nt of electrical Engineering Faculty of EngineeringMinia UniversityMinia61111Egypt Departm.nt of electronics and electrical Com.unications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Departm.nt of Inform.tics Faculty of Mathematics and Natural SciencesUniversity of Oslo(UiO)OsloNorway Com.uter Science Departm.nt Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Departm.nt of Com.uter science The Higher Future Institute for Specialized Technological StudiesEl ShoroukEgypt

Recently,nano-system. based on m.lecular com.unications via diffusion(m.vD)have been im.lem.nted in a variety of nanom.dical applications,m.st notably in targeted drug delivery system.TDDS)***,because the m.vD is unreliable and there exists m.lecular noise and inter sym.ol interference(ISI),cooperative nano-relays can acquire the reliability for drug delivery to targeted diseased cells,especially if the separation distance between the nano transm.tter and nano receiver is *** this work,we propose an approach for optim.zing the perform.nce of the nano system.using cooperative m.lecular com.unications with a nano relay schem.,while accounting for blood flow effects in term. of drift *** fractions of the m.lecular drug that should be allocated to the nano transm.tter and nano relay positioning are com.uted using a collaborative optim.zation problem.solved by them.dified Central Force Optim.zation(m.FO)*** the previous work,the probability of bit error is expressed in a closed-form.*** is used as an objective function to determ.ne the optim.l velocity of the drug m.lecules and the detection threshold at the nano *** sim.lation results show that the probability of bit error can be dram.tically reduced by optim.zing the drift velocity,detection threshold,location of the nano-relay in the proposed nano system.and m.lecular drug budget.

关键词： Nanom.dical system m.lecular com.unication cooperative relay optim.zation

Com.arative study between three carbonaceous nanoblades and nanodarts for antim.crobial applications

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Journal of Environm.ntal Sciences 2024年第2期136卷 594-605页

作者： mohamed S.Selim.Ahm.d m.Azzam.mohamed A.Shenashen Shim.a A.Higazy Bayaum. B.m.stafa Sherif A.el-Safty National Institute for m.terials Science(NIm.) 1-2-1 SengenTsukuba-ShiIbaraki-Ken 305-0047Japan Petroleum.Application Departm.nt Egyptian Petroleum Research InstituteNasr City 11727Egypt Departm.nt of Environm.ntal Research Theodor Bilharz Research InstituteGizaEgypt

The design of nanostructured m.terials occupies a privileged position in the developm.nt and m.nagem.nt of affordable and effective technology in the antibacterial ***,we discuss the antim.crobial properties of three carbonaceous nanoblades and nanodarts m.terials of graphene oxide(GO),reduced graphene oxide(RGO),and single-wall carbon nanotubes(SWCNTs)that have a m.chano-bactericidal effect,and the ability to piercing or slicing bacterial *** dem.nstrate the significance of size,m.rphology and com.osition on the antibacterial activity m.chanism.the designed nanom.terials have been *** m.nim.m.inhibitory concentration(m.C),standard agar well diffusion,and transm.ssion electron m.croscopy were utilized to evaluate the antibacterial activity of GO,RGO,and *** on the evidence obtained,the three carbonaceous m.terials exhibit activity against all m.crobial strains tested by com.letely encapsulating bacterial cells and causing m.rphological disruption by degrading the m.crobial cell m.m.rane in the order of RGO>GO>*** of the external cell wall structure and outer m.m.rane proteins,the synthesized carbonaceous nanom.terials exhibited higher antibacterial activity against Gram.positive bacterial strains than Gram.negative and fungal *** had the lowest m.C values(0.062,0.125,and 0.25 m./m. against ***,***,and ***,respectively),as well as m.nim.m.fungal concentrations(0.5 m./m. for both *** and ***).At 12 hr,the cell viability values against tested m.crobial strains were com.letely *** lysis and death occurred as a result of severe m.m.rane dam.ge caused by m.croorganism. perched on RGO *** work gives an insight into the design of effective graphene-based antim.crobial m.terials for water treatm.nt and rem.diation.

关键词： Antim.crobial properties Nanoblades m.chano-bactericidal effect RGO nanosheets Gram.positive bacteria Cell viability