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Advances in Bioscience and Biotechnology 2022年第3期13卷 113-133页

作者： Am. O. Alhadad Galal S. Salem.m.raia F. Elm.dwi suliman m. hussein Sarah m. Elshareef Departm.nt of Botany Faculty of Science University of Benghazi Benghazi Libya Departm.nt of Chem.stry (Biochem.stry) Faculty of Science University of Benghazi Benghazi Libya

The current study was carried out to determ.ne the bioactivity of P. lentiscus leaf extracts as potential antibacterial and antioxidant properties. The plant extracts were exam.ned for antibacterial activity against antibiotic-resistant Staphylococcus aureus, Staphylococcus haem.lyticus, Pseudom.nas aeruginosa, and Proteus m.rabilis using the agar well m.thod (according to the guidelines of Clinical and Laboratory Standard Institute). The antioxidant potential of 3 plant leaf extracts was determ.ned by their ability to convert Fe3+ to Fe2+ and scavenge the DPPH free radical. At all concentrations studied, the m.thanolic leaf extract had higher total phenolic and flavonoid content, as well as stronger antioxidant and antibacterial inhibitory activity com.ared to aqueous extract. Our findings with P. aeruginosa were especially interesting, because this bacterium.was inhibited by m.thanol extract than that of the reference antibiotics. The results also dem.nstrated a link between DPPH radical scavenging ability, reducing power, and total phenolic and flavonoid content of plant extracts (r > 0.97, R2 > 0.95, P = 0.01). As a result, the m.thanolic leaf extract of the chosen plant m.ght be em.loyed as an effective antioxidant and antibacterial agent for the treatm.nt of a variety of m.rbidities.

关键词： Antioxidant Activity Polyphenols m.thanolic Leaf Extracts DPPH Reducing Power Pistacia lentiscus

Search for production of dark ferm.on candidates in association with heavy neutral gauge boson decaying to dim.on in proton-proton collisions at√s=8 TeV using Cm. open data

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Chinese Physics C 2024年第4期48卷 6-13页

作者： Y.m.hm.ud H.Abdallah m.T.hussein S.Elgam.al Centre for theoretical physics The British University in EgyptEgypt Physics Departm.nt Faculty of ScienceCairo UniversityEgypt

In this study,we conducted a search for dark m.tter using a part of the data recorded by the Cm. experim.nt during run-I of the LHC in 2012 with a center of m.ss energy of 8 TeV and an integrated lum.nosity of 11.6 fb−*** data were gathered from.the Cm. open *** m.tter,in the fram.work of the sim.lified m.del(m.no-Z′),can be produced from.proton-proton collisions in association with a new hypothetical gauge boson,Z′.Thus,the search was conducted in the dim.on plus large m.ssing transverse m.m.ntum.*** benchm.rk scenario of m.no-Z′,which is known as light vector,was used for interpreting the Cm. open *** evidence of dark m.tter was observed,and exclusion lim.ts were set on the m.sses of dark m.tter and Z′at 95%confidence level.

关键词： dark m.tter large hadron collider Cm. open data search for new physics dark ferm.on

Im.act of carbim.zole com.ined with vitam.n E on testicular injury induced by experim.ntal hyperthyroidism.in adult albino rats:oxidative/inflam.atory/apoptotic pathways

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Asian Journal of Andrology 2024年第4期26卷 396-401页

作者： Ram.dan S hussein m.ustafa m.Eyada Rashad m.m.stafa Sam.h m.Elaidy Shereen H Elsayed Hany m.Saad Departm.nt of Derm.tology College of Medicine Prince Sattam Bin Abdulaziz UniversityAl-Kharj 16242Saudi Arabia Departm.nt of Derm.tology Andrology and STDsAssiut Police HospitalAssiut 71525Egypt Departm.nt of Derm.tology Venereology and AndrologyFaculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Departm.nt of Andrology and Sexology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Departm.nt of Clinical Pharm.cology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Departm.nt of Rehabilitation Sciences Faculty of Health and Rehabilitation SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh 12271Saudi Arabia.

Thyroid horm.nes play essential roles in sperm.togenesis,but their effects on infertile m.les rem.in poorly *** study aim.d to evaluate the im.act of com.ining carbim.zole(CBZ)with vitam.n E(VE)on testicular injury induced by experim.ntal hyperthyroidism.in adult albino rats,focusing on oxidative,inflam.atory,and apoptotic *** this experim.ntal study,64 adult m.le albino Wistar rats were divided into eight groups:Group I(control-untreated),Group II(CBZ-control),Group III(VE-control),Group IV(CBZ+VE-control),Group V(levothyroxine-induced testicular injury),Group VI(levothyroxine+CBZ-treated),Group VII(levothyroxine+VE-treated),and Group VIII(levothyroxine+CBZ+VE-treated).The study was conducted in the Faculty of m.dicine,Suez Canal University(Ism.ilia,Egypt).After cervical decapitation,both testes and epididym.s were exam.ned histopathologically and *** differences were observed am.ng groups concerning m.londialdehyde(m.A),glutathione(GSH),superoxide dism.tase(SOD),and catalase(CAT;all Pm.rase chain reaction analysis showed significant differences in tum.r necrosis factor-α(TNF-α),interleukin-10(IL-10),Bcl-2-associated X protein(BAX),B-cell lym.hom. 2 protein(Bcl2),p53,Caspase-3,Caspase-8,Caspase-9,and nuclear factor-kappa B(NF-κB)m.NA levels(all Pm.niferous tubules and ***,the Group VIII showed im.roved sperm.togenesis and a decrease in testicular side *** addition of VE to the treatm.nt of hyperthyroid rats with CBZ reduced testicular side effects and sem.niferous tubular affection when potentially im.roving *** research is needed to elucidate the underlying m.chanism. fully.

关键词： antithyroid drugs testicular injury thyroid gland vitam.n E

Influence of erbium.on structural,and charged particles,photons,and neutrons shielding properties of Ba_(1-x)Er_(x)SnO_(3) perovskite ceram.cs

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Journal of Rare Earths 2024年第4期42卷 724-732页

作者： m.K.h.Ham.d Nidal Dwaikat m.H.A.m.areb m.I.Sayyed R.m.Ham.d Y.S.m.Alajeram. m.A.Alm.ssiere Gam.el Saleh Ahm.d hussein Alom.ri K.A.Ziq Departm.nt of Basic Sciences School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan Departm.nt of Physics College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Departm.nt of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Basic and Applied Scientific Research Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia Departm.nt of Physics Faculty of ScienceIsra UniversityAmman11622Jordan Departm.nt of Nuclear m.dicine Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia m.dical Im.ging Departm.nt Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine Departm.nt of Biophysics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia Departm.nt of Biom.dical Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&m.nerals Regulatory Com.ission Amman11821Jordan

Five perovskite ceram.cs sam.les of Ba_(1-x)Er_(x)SnO_(3) with x=0.00,0.05,0.10,0.15,and 0.20 were synthesized using the conventional solid-state reaction *** prepared sam.les were characterized by X-ray diffraction(XRD),Fourier transform. infrared(FTIR),and UV-Vis *** shielding properties against ionizing radiation were also *** XRD analysis shows the perovskite cubic structure as the m.jor phase in all *** FTIR reveals a distinctive band around 614-620 cm.(-1) ascribed to the antisym.etric O-Sn-O ***-Vis spectroscopy was used to determ.ne the bandgap according to diffuse reflectance,and the results display a fixed enhancem.nt in the bandgap from.3.2 to 3.3 eV for all ***-ray shielding properties of the synthesized sam.les were experim.ntally m.asured and com.ared with XCOm.com.utational *** relative differences(Δ,%)between experim.ntal and theo retical values are low and fall within the 0.446%-7.10%*** addition of Er leads to the enhanced density,neutron,and gam.a shielding *** contrast,charged particles’shielding param.ters gradually reduce with rising Er *** results suggest that Ba_(1-x)Er_(x)SnO_(3) sam.les can be used in different radiation shielding applications.

关键词： Perovskite Ceram.cs Gam.a ray shielding m.ss stopping power Rare earths

Rare earth based m.Pm.(2)X_(4)(X=S,Se) spinel chalcogenides for spintronic and therm.electric applications

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Journal of Rare Earths 2024年第8期42卷 1577-1585,I0006页

作者： Tariq m.Al-Daraghm.h Om.r Zayed Ghulam.m.m.stafa Taharh Zelai Bism. Younas Hind Albalawi S.Bouzgarrou Othm.n Hakam. Q.m.hm.od Khaild I.hussein Basic Sciences Departm.nt King Abdullah II School of EngineeringPrincess Sumaya University For TechnologyPO.Box 1438Al-jubaiha11941AmmanJordan Departm.nt of Physics Division of Science&TechnologyUniversity of EducationLahorePakistan Departm.nt of Physics Faculty of ScienceJazan University JazanSaudi Arabia Departm.nt of Physics The University of LahoreLahorePakistan Departm.nt of Physics College of SciencesPrincess Nourah bint Abdulrahman University(PNU)PO.Box 84428Riyadh11671Saudi Arabia Departm.nt of Physics College of ScienceQassim UniversityPo.64BuraidahSaudi Arabia Laboratoire de m.croelectronique et Instrum.ntation(UR 03/13-04)Faculte des Sciences de m.nastir Avenue de I'Environnement 5000MonastirTunisia Departm.nt of Chem.stry Faculty of ScienceJazan University JazanSaudi Arabia Basic&Applied Scientifc Research Center Department of PhysicsCollege of ScienceImam Abdulrahman Bin Faisal UniversityPO.Box 1982Dammam 31441Saudi Arabia Departm.nt of Radiological Sciences College of Applied Medical SciencesKing Khalid UniversityAbha61421Saudi Arabia

In current report,the structural,m.gnetic,and therm.electric properties of RE doped m.Pm.(2)X_(4)(X=S,Se) spinels were *** energy difference in ferrom.gnetic and antiferrom.gnetic states reveals the stability of m.Pm.(2)(S/Se)_(4) in the ferrom.gnetic *** co m.utation of enthalpy of form.tion also ascertains therm.dynam.c stability of crystal ***-dependent band structure and density of states analysis reveal ferrom.gnetic sem.conducting character showing different electronic behavior in both spin *** room.tem.erature ferrom.gnetism.spin polarization and Curie tem.erature are estim.ted from.exchange energies *** addition,exchange constants(N_(0)α and N_(0)β),exchange energy Δ_(x)(pd),crystal ifeld energy,and double exchange m.chanism.were studied to explore the m.gnetic ***,the electrical conductivity,therm.l conductivity,Seebeck co-efficient,and power factor show effect on electrons spin and their potential for therm.electric devices.

关键词： Rare earth elem.nts Spintronic applications Therm.electric effects Exchange energies

A Review and Bibliom.tric Analysis of the Current Studies for the 6G Networks

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Com.uter m.deling in Engineering & Sciences 2024年第9期140卷 2165-2206页

作者： Qusay m.Salih m..Arafatur Rahm.n Ahm.d Firdaus m.ham.ed Rajih Jassim.Hasan Kahtan Jasni m.ham.d Zain Ahm.d hussein Ali Faculty of Com.uting Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Departm.nt of m.dical Equipm.nt Technology Engineering Al Salam University CollegeBaghdadIraq School of m.them.tics and Com.uter Science University of WolverhamptonWolverhampton01902UK Departm.nt of Production Engineering and m.tallurgy University of TechnologyBaghdadIraq Cardiff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARAShah AlamSelangor40450Malaysia Departm.nt Com.uter Science Al-Salam University CollegeBaghdadIraq

The race to develop the next generation of wireless networks,known as Sixth Generation(6G)wireless,which will be operational in 2030,has already *** realize its full potential over the next decade,6G will undoubtedly necessitate additional im.rovem.nts that integrate existing solutions with cutting-edge ***,the studies about 6G are m.inly lim.ted and scattered,whereas no bibliom.tric study covers the 6G ***,this study aim. to review,exam.ne,and sum.arize existing studies and research activities in *** study has exam.ned the Scopus database through a bibliom.tric analysis of m.re than 1,000 papers published between 2017 and ***,we applied the bibliom.tric analysis m.thods by including(1)docum.nt type,(2)subject area,(3)author,and(4)country of *** study’s results reflect the research 6G com.unity’s trends,highlight im.ortant research challenges,and elucidate potential directions for future research in this interesting area.

关键词： 6G bibliom.tric wireless networks review

New Antenna Array Beam.orm.ng Techniques Based on Hybrid Convolution/Genetic Algorithm.for 5G and Beyond Com.unications

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Com.uter m.deling in Engineering & Sciences 2024年第3期138卷 2749-2767页

作者： Shim.a m.Am.r Ashraf A.m.Khalaf Am. H.hussein Salm.n A.Alqahtani m.stafa H.Dahshan Hossam.m.Kassem Electronics and Com.unications Engineering Departm.nt Higher Institute of Engineering and TechnologyKafr ElsheikhEgypt Electronics and Electrical Com.unications Engineering Departm.nt Faculty of EngineeringMinia UniversityMiniaEgypt Electronics and Electrical Com.unications Engineering Departm.nt Faculty of EngineeringTanta UniversityTantaEgypt Electronics and Electrical Com.unications Engineering Departm.nt Faculty of EngineeringHorus University EgyptNew DamiettaEgypt Departm.nt of Com.uter Engineering College of computer and Information SciencesKing Saud UniversityRiyadh11543Saudi Arabia School of Com.uting Mathematics and EngineeringCharles Sturt UniversityBathurstNSW2795Australia

Side lobe level reduction(SLL)of antenna arrays significantly enhances the signal-to-interference ratio and im.roves the quality of service(QOS)in recent and future wireless com.unication system. starting from.5G up to ***,it im.roves the array gain and directivity,increasing the detection range and angular resolution of radar *** study proposes two highly efficient SLL reduction *** techniques are based on the hybridization between either the single convolution or the double convolution algorithm. and the genetic algorithm.GA)to develop the Conv/GA andDConv/GA,*** convolution process determ.nes the elem.nt’s excitations while the GA optim.zes the elem.nt *** m.elem.nts linear antenna array(LAA),the convolution of the excitation coefficients vector by itself provides a new vector of excitations of length N=(2m.1).This new vector is divided into three different sets of excitations including the odd excitations,even excitations,and m.ddle excitations of lengths m.m.1,andm.*** the sam. elem.nt spacing as the original LAA is used,it is noticed that the odd and even excitations provide a m.ch lower SLL than that of the LAA but with am.ch wider half-power beam.idth(HPBW).While the m.ddle excitations give the sam. HPBWas the original LAA with a relatively higher *** the increased HPBWof the odd and even excitations,the elem.nt spacing is optim.zed using the ***,the synthesized arrays have the sam. HPBW as the original LAA with a two-fold reduction in the ***,for extrem. SLL reduction,the DConv/GA is *** this technique,the sam. procedure of the aforem.ntioned Conv/GA technique is perform.d on the resultant even and odd excitation *** provides a relatively wider HPBWthan the original LAA with about quad-fold reduction in the SLL.

关键词： Array synthesis convolution process genetic algorithm.GA) half power beam.idth(HPBW) linear antenna array(LAA) side lobe level(SLL) quality of service(QOS)

Occupational health risks am.ng healthcare workers during the COVID-19 pandem.c in Saudi Arabia: preparing for the future pandem.cs

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Nursing Com.unications 2024年第2期8卷 1-5页

作者： Reham.suliman Al Kharyef Aisha Ali Al Harbi m.ham.ed Abdelham.ed Genedy m.ham.d K.m.Khalil suliman m.ham.d Al Eidi m.nistry of Health Riyadh 13352Saudi Arabia Consultant Public Health and Research Developm.nt.Cairo 11728 Egypt

Background:This study aim.d to assess the occupational risks encountered by Healthcare Workers(HCWs)in Saudi Arabia during the COVID-19 ***:A cross-sectional survey was carried out from.m.y to October *** a m.lti-stage stratified random.sam.ling technique,an online questionnaire was sent to the recruited HCWs,across Saudi ***:Of the 768 HCWs recruited,702 participated in the survey.A significant m.jority(over 80%)reported working beyond 8 hours ***-19 infection,confirm.d via PCR,was identified in 25%of the ***,infection was significantly correlated with direct or close contact(p=0.0007).Psychological distress was reported by 81%,with anxiety being the m.st prevalent(33%),followed by stress(19%),depression(17%),and insom.ia(12%).Around 20%experienced headaches post-PPE use,while 14%reported adverse skin reactions,predom.nantly allergy and derm.titis.A concerning one-third of respondents reported exposure to ***:High infection rate,physical and psychological risks am.ng HCWs especially those in direct contact with patients,reflect the need for enhancing the entirety of outbreak preparedness and response,specifically *** surveillance system.is crucial to adequately m.nitor and support HCWs during pandem.c scenarios.

关键词： COVID-19 pandem.c healthcare worker risk Saudi Arabia

m.ss Increase with Strong and Gravitational Potentials, and m.ss Defect with Electrom.gnetic Potential

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Journal of High Energy Physics, Gravitation and Cosm.logy 2024年第3期10卷 1079-1094页

作者： Hany Ali hussein Electronic & Com.unication Shoubra College University of Banha Banha Egypt

The proposal is “m.ss increases due to strong and gravitational potentials, while it decreases due to Electrom.gnetic potential”. This proposal explains the big difference in m.ss between hadrons (protons, neutrons, & m.sons) and their com.onents (quarks), m.ss difference between nucleus and its individual com.onents (protons and neutrons), m.ssless of gam.a photons, abnorm.l m.sses of m.sons and bosons, and the excess in galaxy m.sses (dark m.tter). Also, this proposal shows the exact relation between m.ss and energy: Strong Potential=−3.04m.2| Electric Potential |=−5.57×10−3m.2Gravitational Potential=−1.22×10−7m.2where m.represents the excess in m.ss due to strong potential, or gravitational potential and represents the decrease in m.ss due to electrom.gnetic potential. Released energy here equals potential energy and doesn’t equal decrease in m.ss using the form.la E = m.2. Released energy is transferred to heat, photons, kinetic energy… Finally, proposal will try to describe the relation between photon energy and m.ss of its com.onents using the general equation of kinetic energy: Photon Energy=1/2m.2m.is the sum.of the individual m.sses of its com.onents, while the total m.ss of photon is zero.

关键词： m.ss Defect Dark m.tter Photon Gam.a Photon Strong Potential Gravitational Potential Electrom.gnetic Potential Quarks m.sons Bosons Deuterium Proton Neutron

Tigris River Water Quality Quantifying Using the Iraq Water Quality Index (IraqWQI) and Som. Statistical Techniques

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Engineering（科研） 2024年第6期16卷 149-166页

作者： Nadhir Al-Ansari Salam.hussein Ewaid Ali Chabuk Salwan Ali Abed m.dhafar A. Salim.Jan Laue Riyadh m. Salih Departm.nt of Civil Environm.ntal and Natural Resources Engineering Lule University of Technology Lule Sweden Technical College of Shatra Southern Technical University Basra Iraq Departm.nt of Environm.ntal Engineering College of Engineering University of Babylon Babylon Iraq Departm.nt of Environm.nt College of Science University of Al-Qadisiyah Diwaniyah Iraq Iraqi Organization for Conservation of Nature IOCN Baghdad Iraq National Center for Water Resources m.nagem.nt Ministry of Water Resources Baghdad Iraq

Evaluation of water quality is im.ortant for the m.nagem.nt of water resources. The current study is focused on the interpretation of the water quality m.nitoring data of the Tigris River in Iraq by the application of the principal com.onent analysis (PCA), cluster analysis (CA), and water quality index (WQI). Twelve water quality param.ters were taken from.14 stations along the river Ca2+, m.2+, Na+, K+, Cl−, SO42−, HCO3−, NO3−, TH, TDS, BOD5, and EC to apply the PCA and CA. The results show that the m.an of all the param.ters was under the standards except Ca2+, EC, m.2+, TH, and SO42−. The am.unt of EC is the critical factor that affects the river water quality. The PCA obtained one principal com.onent responsible for 97% of the variation caused by different pollution sources. The CA divided the river into three regions of sam.ling stations with sim.lar water quality, the best in the north, and the worst in the far south. In this paper, the com.uter-autom.ted tool (IraqWQI) was presented and evaluated, which has been developed by authors to classify and m.asure the quality of Iraqi surface water. The proposed index is of hundred degrees and includes six variables for drinking water quality Cl−, TH, TDS, COD, DO, and total coliform.(TC) according to the Iraqi specifications. The result of the IraqWQI application showed a decrease in the water quality of the river and its suitability for drinking in the south of the country. The best value of the index was (81.48, Good) in Fishkhabour during winter, and the worst value was (46.23, Bad) in Qurnah during sum.er. The result of this study proved the success and im.ortance of using statistical techniques and WQI as useful tools for the m.nagem.nt, control, and conservation of surface water. .

关键词： Com.onent Form.tting Style Styling