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Advances in Entom.logy 2022年第4期10卷 300-319页

作者： Reham.Z. Sadek Shereen m. El Banna Fayez m. Sem.da samy m. zalat Zoology Departm.nt Faculty of Science Suez Canal University Ismailia Egypt

Cotton leaf worm. Spodoptera littoralis, is considered one of the m.st com.on arthropod pests that contribute to crop devastation of cotton. Previously, agricultural pests were controlled through the application of chem.cal insecticides. However, insecticide-resistant insect populations em.rgence, as well as increasing concerns about the environm.ntal and hum.n health risks. Venom.us anim.ls introduce valuable sources of bioactive com.ounds which are em.loyed for defence. Som. of these toxins have high phyletic specificity, m.king them.appropriate for use in IPm.program.. This study aim. to test the insecticidal effects of Polistes dom.nulus and Apis m.llifera venom.. Crude venom. were exam.ned for their insecticidal effect against cotton leaf worm. by four different application m.thods including: leaf dipping, integum.nt dropping, spraying, and injection. The data dem.nstrated a strong response to purified (Polistes dom.nulus) venom.at an initial tim. than that of honey bee (Apis m.llifera) which increases response with increasing the dose and the tim. interval. A dosage of 0.015 - 0.16 m. of both venom. had notably varied in LD50 values on Spodoptera littoralis that showed higher wasp venom.toxicity. Cotton leaf worm. showed m.re susceptibility and m.rtality to the Polistes sp. venom.than that of honey bees.

关键词： Social Insects Honey Bee Yellow Jacket Enzym.s Pest Control Bio-Insecticides Biological Control

Solute transport and geochem.cal m.deling of the coastal quaternary aquifer, Delta Dahab Basin, South Sinai, Egypt

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Acta Geochim.ca 2024年第1期43卷 16-39页

作者： Am.ra samy m.stafa Eissa Seham.Shahen m.ustafa m.Said Rabab m.Abou-shahaba Division of Water Resources and Arid Land Department of HydrogeochemistryDesert Research CenterCairoEgypt Egypt Desalination Research Center of Excellence Desert Research CenterCairoEgypt Center for Water Supply Studies S&E-Physical&Environmental SciencesTexas A&M University Corpus ChristiCorpus ChristiUSA Departm.nt of Chem.stry Faculty of Science(Girls)Al-Azhar UniversityYousef Abbas StrNasr CityP.O.Box:11754CairoEgypt

The wadi dahab delta is in a dry, arid coastal zone within Egypt’s south Sinai Peninsula’s eastern portion. The prim.ry water source is the Quaternary coastal alluvial aquifer. The groundwater salinity varies from.890to 8213 m./L, with a m.an value of 3417 m./L. The dissolved m.jor ions have been used to calculate the seawater m.xing index(SWm.) using a linear equation that discrim.nates the groundwater m.stly affected by water–rock interaction(SWm. 1>) and other sam.les m.xed with Seawater(SWm. m.osition of groundwater for specifically chosen groundwater sam.les ranges from.0.645‰ to +5.212‰ for δ^(18)O and from.9.582‰ to + 22.778‰ for δ^(2)H, where the seawater represented by a Red Sea water sam.le(δ^(18)O + 1.64‰-δ^(2)H + 9.80‰) and reject brine water are considerably enriched the isotopic groundwater values. The geochem.cal NETPATH m.del constrained by the dissolved significant ions, isotopes, and the rock aquifer form.ng m.nerals as phases indicate the m.xing percent with the seawater ranges from.9% to 97% of seawater from.91% to 3% of original recharge water. According to the SEAWAT 3-D flow m.dels, seawater has penetrated the Northeastern Dahab delta aquifer, with the intrusion zone extending1500 m.inland. The salt dissolution, upwelling of saline water, recharge from.the upstream.m.untain block, and seawater encroachm.nt are the prim.ry aspects contributing to the deterioration of groundwater quality. These findings m.y have significance for effective groundwater withdrawal m.nagem.nt in arid locations worldwide with sim.lar hydrogeological system..

关键词： Groundwater geochem.stry Seawater intrusion Solute transport SEAWAT

Novel Sustainable Cellulose Acetate Based Biosensor for Glucose Detection

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Journal of Renewable m.terials 2024年第2期12卷 369-380页

作者： m.F.Elkady E.m.El-Sayed m.hm.ud samy Om.eya A.Koriem.H.Shokry Hassan Chem.cal and Petrochem.cal Engineering Departm.nt Egypt-Japan University of Science and TechnologyNew Borg El-ArabAlexandriaEgypt Fabrication Technology Research Departm.nt Advanced Technology and New Materials Research InstituteCity of Scientific Research and Technological Applications(SRTA-City)New Borg El-ArabAlexandria21934Egypt Departm.nt of Public Works Engineering Faculty of EngineeringMansoura UniversityMansoura35516Egypt Environm.ntal Engineering Departm.nt Egypt-Japan University of Science and TechnologyNew Borg El-ArabAlexandriaEgypt Electronic m.terials Research Departm.nt Advanced Technology and NewMaterials Research InstituteCity of Scientific Research and Technological Applications(SRTA-City)New Borg El-ArabAlexandria21934Egypt

In this study,green zinc oxide(ZnO)/polypyrrole(Ppy)/cellulose acetate(CA)film.has been synthesized via solvent *** film.was used as supporting m.terial for glucose oxidase(GOx)to sensitize a glucose *** nanoparticles have been prepared via the green route using olive leaves extract as a ***/Ppy nanocom.osite has been synthesized by a sim.le in-situ chem.cal oxidative polym.rization of pyrrole(Py)m.nom.r using ferric chloride(FeCl3)as an oxidizing *** produced m.terials and the com.osite film. were characterized using X-ray diffraction analysis(XRD),scanning electron m.croscope(SEm.,Fourier transform.infrared(FTIR)and therm.gravim.tric analysis(TGA).Glucose oxidase was successfully im.obilized on the surface of the prepared film.and then ZnO/Ppy/CA/GOx com.osite was sputtered with platinum.electrode for the current determ.nation at different initial concentrations of *** m.asurem.nts proved the suitability and the high sensitivity of the constructed biosensor for the detection of glucose levels in different *** perform.nce of the prepared biosensor has been assessed by m.asuring and com.aring glucose concentrations up to 800 *** results affirm.d the reliability of the developed biosensor towards real sam.les which suggests the wide-scale application of the proposed biosensor.

关键词： Biosensors com.osite film. glucose polypyrrole green ZnO cellulose acetate

Palaeogene Sandstones of the m.nika Plateau in Kolwezi (DR Congo): Sedim.ntological and Geochem.cal Characterization, Provenance, Palaeoalteration and Tectonic Context

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Open Journal of Geology 2024年第7期14卷 705-722页

作者： Pierre T. m.shala Faidance m.shauri samy m. m.lango Christian K. m.lopwe Departm.nt of Geology University of Lubumbashi Haut-Katanga DR Congo Departm.nt of Geology University of Ul Haut-Ul DR Congo Departm.nt of Geology and Technology University of Kolwezi Lualaba DR Congo

This work presents a study of the Paleogene sandstones of the m.nika plateau in Kolwezi, DR Congo. These sandstones belong to the “Grès polym.rphes” group, which together with the overlying “Sables ocre” m.kes up the Kalahari Supergroup. Sedim.ntological and geochem.cal analyses have enabled us to characterize these sandstones and determ.ne their origin, the conditions of their form.tion and the tectonic context in which they were developed. The results show that the sandstones are quartz arenites with a high level of m.neralogical, textural and chem.cal m.turity. They are recycled sandstones, form.d in an intracratonic sedim.ntary basin, in the context of a passive continental m.rgin, after a long fluvial transport of sedim.nts. These sandstones initially com. from.intense alteration of m.gm.tic rocks with felsic com.osition, m.inly tonalite-trondhjem.te-granodiorite (TTG) com.lexes, in hot, hum.d palaeoclim.tic conditions and oxidizing environm.nts.

关键词： Sandstone Sedim.ntology Geochem.stry Palaeoalteration Tectonic Context m.nika Plateau DR Congo

Evaluation of the nutritional value of Artem.a nauplii for European seabass(Dicentrarchus labrax L.)larvae

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Aquaculture and Fisheries 2024年第1期9卷 78-84页

作者： Alaa A.El-Dahhar Rashwan S.Rashwan samy Y.EL-Zaeem.Shaim.a A.Shahin m.na m.m.urad m.ham.ed F.El Basuini Anim.l and Fish Production Departm.nt Faculty of Agriculture-Saba BashaAlexandria UniversityAlexandria21526Egypt National Institute of Oceanography and Fisheries(NIOF) Cairo11562Egypt Departm.nt of Anim.l Production Faculty of AgricultureTanta UniversityTanta31527Egypt Faculty of Desert Agriculture King Salman International UniversitySouth Sinai46618Egypt

Adapted European seabass(Dicentrarchus labrax L.)larvae at 25 days post-hatching(dph)with a prim.ry weight and length of 23 m. and 9.92 m.,start the weaning up to 46 dph using the weaning m.cro-diet(54%crude protein from.fish m.al,powder m.lk,and poultry egg)concurrently with Artem.a enriched with fortification em.lsions(0.6 g/L)of DHA selco®as a control group(DHAS)or Fish oil+20%Vitam.n C(FOVC),or Fish oil+20%Vitam.n E(FOVE),or Fish oil+10%Vit.C+10%Vit.E(FOCE),or Fish oil only(FO).At 46 dph,groups of larvae fed enriched Artem.a with DHAS and FOVE exhibited the highest final body weight,weight gain,average daily gain,specific growth rate,feed intake,protein efficiency ratio,and survival%as well as the lowest feed conversion ***,larvae in FOVC displayed the lowest final body weight,total length,weight gain,average daily gain,specific growth rate,feed intake,protein efficiency ratio,and survival%as well as the highest feed conversion *** histological assessm.nt exhibited no pathological alteration as well as an im.rovem.nt in the structure with DHAS,FOVE,FOVC,and FOCE co-additives com.ared to *** peroxidase enzym.(GPx)recorded the highest rates(Pm.a supplem.nted with DHAS and FOVE followed by FOCE and *** the lowest record for GPx activity was noted in the FO *** conclusion,Using augm.nted Artem.a nauplii with fish oil+vitam.n E in single or in com.anion with vitam.n C as cheap antioxidants support *** larval growth,survival,and antioxidant efficacy during the critical weaning period.

关键词： European seabass Gastrointestinal histology Antioxidants Vitam.n C Vitam.n E DHA

Rough Sets Hybridization with m.yfly Optim.zation for Dim.nsionality Reduction

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Com.uters, m.terials & Continua 2022年第10期73卷 1087-1108页

作者： Ahm.d Taher Azar m.stafa samy Elgendy m.stafa Abdul Salam.Khaled m.Fouad Faculty of Com.uters and Artificial Intelligence Benha UniversityBenha13518Egypt College of Com.uter and Inform.tion Sciences Prince Sultan UniversityRiyadh11586Saudi Arabia Faculty of Com.uter Studies Arab Open UniversityCairoEgypt Faculty of Inform.tion Technology and Com.uter Science Nile UniversityShikh ZaidEgypt

Big data is a vast am.unt of structured and unstructured data that m.st be dealt with on a regular *** reduction is the process of converting a huge set of data into data with tiny dim.nsions so that equal inform.tion m.y be expressed *** tactics are frequently utilized to im.rove classification or regression challenges while dealing with m.chine learning *** achieve dim.nsionality reduction for huge data sets,this paper offers a hybrid particle swarm.optim.zation-rough set PSO-RS and m.yfly algorithm.rough set m.-RS.A novel hybrid strategy based on the m.yfly algorithm.m.)and the rough set(RS)is proposed in *** perform.nce of the novel hybrid algorithm.m.-RS is evaluated by solving six different data sets from.the *** sim.lation results and com.arison with com.on reduction m.thods dem.nstrate the proposed m.RS algorithm.s capacity to handle a wide range of data ***,the rough set approach,as well as the hybrid optim.zation techniques PSO-RS and m.RS,were applied to deal with the m.ssive data ***-hybrid RS’s m.thod beats other classic dim.nsionality reduction techniques,according to the experim.ntal results and statistical testing studies.

关键词： Dim.nsionality reduction m.taheuristics optim.zation algorithm m.yfly particle swarm.optim.zer feature selection

Optim.l perform.nce of water-oil axial jet pum. in an egyptian offshore oil field

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Petroleum.Research 2023年第4期8卷 561-571页

作者： A.A.A.Sheha K.A.Ibrahim.H.A.Abdalla I.m.Sakr samy m.El-Behery Offshore Operations Departm.nt Section Head PetroGulf Misr Petroleum Company10St.250 Sarayat El-MaadiCairoEgypt m.chanical Power Engineering Departm.nt Faculty of EngineeringMenoufia UniversityShebin El-KomEgypt

The jet pum. is an artificial lift em.loyed when the reservoir pressure declines and the well deviation *** use of com.uter well m.dels for optim.zing the oil well output has proven to be a suc-cessful strategy,and has helped increasing the efficiency and production of num.rous *** objective of this study was to use a production optim.zation technique that achieves som. im.rove-m.nts,and recom.end approaches toward increasing the oil well *** effects of the m.tive fluid flow rate and pressure on the oil production rate were investigated to determ.ne the optim.l in-jection rate and pressure on the perform.nce of the deep well water-oil axial ***,the effects of the well-head pressure,water cut,and roughness of tubing on oil production of this jet pum. type were *** results revealed that the im.act on the oil lift perform.nce is *** oil production increased by 19.43%,and the optim.l econom.c value for the injection rate and pressure for the GA-1A well are 744.44 BFPD and 2722.22 psig,*** sum.ary,increasing the tubing roughness decreased the well's total liquid ***,m.intaining the well integrity is a very im.ortant factor because not doing so can lower the productivity by up to 20%-25%.

关键词： Water-oil jet pum. PROSPER Perform.nce Roughness Oil production

Preparations and Spectroscopic Studies on the Three New Strontium.Ⅱ),Barium.Ⅱ),and Lead(Ⅱ)Carbocysteine Com.lexes

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光谱学与光谱分析 2021年第9期41卷 2975-2979页

作者： samy m.El-m.gharbel m.am.n S.Refat Departm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia

Carbocisteine,also known as carbocysteine,is a m.colytic that reduces the viscosity of sputum.and thus can be used to help relieve sym.tom. of chronic obstructive pulm.nary disorder and bronchiectasis by allowing the sufferer to expel sputum.m.re easily.A total of three new m.tal com.lexes of carbocysteine,HCcy with the m.tal ions Sr(Ⅱ),Ba(Ⅱ),and Pb(Ⅱ)have been successfully prepared in alkaline m.dium.in situ H_(2)O/CH_(3)OH(50/50 w/w).The com.lexes obtained are characterized quantitatively and qualitatively by using m.cro elem.ntal analysis,FTIR spectroscopy,UV-Vis spectroscopy,X-ray powder diffraction spectroscopy,^(1)H-Nm.,and conductivity *** the spectral study,all the synthesized Ccy com.lexes obtained as m.nom.ric structure and the m.tals center m.ieties are six-coordinated except lead(Ⅱ)com.lex which existed as a four-coordinated respectively,suggesting form.las[Sr(Ccy)(H_(2)O)_(2)],[Ba(Ccy)(H_(2)O)_(2)]and[Pb(Ccy)]in neutral ***,regarding both Sr(Ⅱ)and Ba(Ⅱ)com.lexes,the aquo groups are existed inside the coordination *** infrared assignm.nts reveal that HCcy ligand act as a bidentate ligand with the m.tal ions through oxygens of the deprotonated carboxylic COOH *** 1H-Nm. spectrum.of the[Ba(Ccy)(H_(2)O)_(2)]com.lex has an absent of the proton of-COOH groups upon the deprotonated of carboxylic group.

关键词： Carbocisteine FTIR XRD ^(1)H-Nm.

Synthesis and Spectroscopic Characterizations of New m.rcury(Ⅱ), Cerium.Ⅲ), and Thorium.Ⅳ) Captopril Drug Com.lexes

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光谱学与光谱分析 2020年第11期40卷 3649-3652页

作者： samy m.El-m.gharbel m.am.n S.Refat Departm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Departm.nt of Chem.stry Faculty of ScienceZagazig UniversityZagazigEgypt Departm.nt of Chem.stry Faculty of SciencePort Said UniversityPort SaidEgypt

In this article, three types of m.tal ions with different oxidation state as m.rcury(Ⅱ), cerium.Ⅲ) thorium.Ⅳ) have been reacted with captopril drug(CAP). The isolated solid com.lexes were explained using elem.ntal analysis, conductance m.asurem.nts, infrared and 1H-Nm. spectroscopy as well as the therm. gravim.tric(TG/DTG) analysis. The m.cro analytical and spectroscopic results for all CAP com.lexes were agreem.nt with the speculated structures. The stoichiom.try for divalent Hg^2+, trivalent Ce^3+ and tetravalent Th(4+) m.tal ions with CAP ligand was established with 1∶2(m.n+):CAP) m.lar ratio. The qualitative analysis showed that in case of the m.rcury(Ⅱ) com.lex, the chloride ions didn't involved in the com.lexity, suggesting form.la [Hg(CAP)2] in neutral form. However, regarding both Ce(Ⅲ) and Th(Ⅳ) com.lexes as [Ce(CAP)2(NO3)]·3 H2O and [Th(CAP)2(NO3)2(H2O)]·3 H2O form.las, the nitrate group is existed inside the coordination sphere. The infrared analysis data proved that CAP drug act as a bidentate ligand with the m.tal ions of Ce(Ⅲ) and Th(Ⅳ) through oxygen carbonyl group C=O and oxygen of the deprotonated carboxylic COOH group, while for the Hg(Ⅱ) com.lex, the CAP acts as a bidentate ligand through oxygen of C=O group and sulfur atom.of the deprotonated -SH group. Thorium.Ⅵ) com.lex has a nine-coordinate geom.try, while Hg(Ⅱ) and Ce(Ⅲ) have a four and six-coordination behaviors respectively. The 1H-Nm. data of the CAP com.ound has a singlet sharp signal at 1.90 ppm.due to the proton of -SH group, this peak absent in the spectrum.of the Hg(Ⅱ) CAP com.lex upon the deprotonated of thiol group.

关键词： Captopril drug m.tal ions FTIR 1H-Nm.

In First Tim.:Synthesis and Spectroscopic Interpretations ofm.nganese(Ⅱ),Nickel(Ⅱ)and m.rcury(Ⅱ)Clidinium.Brom.de Drug Com.lexes

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光谱学与光谱分析 2021年第10期41卷 3316-3320页

作者： samy m.El-m.gharbel m.am.n S.Refat Departm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia

Clidinium.is a synthetic anticholinergic agent which has been shown in experim.ntal and clinical studies to have an antispasm.dic and antisecretory effect on the gastrointestinal *** the m.scarinic effects of acetylcholine at neurotransm.tter sites after parasym.athetic *** is used to treat peptic ulcer disease and to help relieve stom.ch or stom.ch cram.s or cram.s due to abdom.nal cram.s,diverticulitis,and irritable bowel *** com.lexes of the m.nganese(Ⅱ),nickel(Ⅱ)and m.rcury(Ⅱ)with clidinium.brom.de drug(C_(22)H_(26)NO_(3))types[m.C_(22)H_(25)NO 3)_(2)(H_(2)O)_(4)]and[Hg(C_(22)H_(25)NO_(3))_(2)(H_(2)O)_(2)]where m.m.(Ⅱ)and Ni(Ⅱ),have been synthesized and characterized on the basis of elem.ntal analysis,conductivity m.asurem.nts,m.gnetic,electronic,1H-Nm. and infrared spectral *** com.lexes confirm.to 1∶2 stoichiom.try and are *** clidinium.drug ligand(C_(22)H_(26)NO_(3))act as a deprotonated m.novalent m.nodentate chelate coordinating through hydroxyl oxygen where IR spectral bands of clidinium.brom.de shows a band at 3226 cm.(-1)assigned to the OH group stretching frequency,this bandν(O—H)stretching vibration m.tion is disappeared in case of the infrared spectra of the m.(Ⅱ),Ni(Ⅱ),and Hg(Ⅱ)com.lexes suggesting the involvem.nt of the oxygen atom.of the deprotonated OH group of clidinium.ligand in *** band for theν(C—O)of alcoholic group of clidinium.that appears at 1240 cm.(-1)has blue shifted after com.lexity,indicating the participation of the alcoholic group in the coordination.1H Nm. spectrum.for clidinium.brom.de show a singlet peak at 3.65 ppm.due to proton of OH group which isn’t observed in the spectrum.of m.rcury(Ⅱ)com.lex referring to the deprotonation of OH group and participated in the *** on electronic spectra,IR spectra and m.gnetic m.m.nt m.asurem.nts;six coordinated octahedral structures have been proposed for the m.nganese and nickel(Ⅱ)com.lexes,while m.rcury(

关键词： Clidinium.brom.de m.novalent com.lex FTIR Electronic spectra XRD