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Validation of a m.thod for Characterization of Ethanol in Water by HS-GC-FID to Serve the Traceability of Halal m.asurem.nts

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Green and Sustainable Chem.stry 2024年第2期14卷 17-28页

作者： Adel B. Shehata abdulrahman R. al Askar m.ham.ed A. al Rasheed abdulrahman m. al Zahrany Fahd A. al Kharraa Sowailem.A. al Sowailem Chem.stry Departm.nt/National m.asurem.nt and Calibration Center (Nm.C) Saudi Standards Metrology and Quality Organization (SASO) Riyadh Kingdom of Saudi Arabia

The determ.nation of the ethanol content in food products is of fundam.ntal im.ortance for Halal certification. In this work, an analytical m.thod for the determ.nation of ethanol in water by headspace gas chrom.tography with flam. ionization detector (HS-GC-FID) has been developed and validated for the use in characterization of ethanol reference m.terials. The validation study was carried out in the linear calibration range 100 - 1500 m./kg using the NIST SRm.2900, nom.nal 95.6%. The studied perform.nce characteristics of the m.thod were the lim.t of detection, LOD, the lim.t of quantification LOQ, selectivity, linearity, precision, recovery and bias. The validation results showed that the m.thod is selective, precise, accurate and free from.any significant bias. The LOD and LOQ were 1.27 and 3.86 m./kg respectively and the estim.ted expanded uncertainty was 2% indicating that the m.thod is fit for the purpose of certification of ethanol in water reference m.terials.

关键词： Ethanol HS-GC-FID Validation Linearity Precision Bias

Discoid m.niscus:Treatm.nt considerations and updates

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World Journal of Orthopedics 2024年第6期15卷 520-528页

作者： Waleed albishi Am.ad albaroudi abdulrahman m.alaseem.Sarah aljasser Ibrahim.alshaygy Abdullah Addar Departm.nt of Orthopedic Surgery College of MedicineKing Saud UniversityRiyadh 11362Saudi Arabia

A discoid m.niscus is a m.rphological abnorm.lity wherein the m.niscus loses its norm.l‘C’*** m.st patients are asym.tom.tic,patients m.ght still present with sym.tom. such as locking,pain,swelling,or giving *** resonance im.ging is usually needed for confirm.tion of *** on a constellation of factors,including clinical and radiological,different approaches are chosen for the m.nagem.nt of discoid *** purpose of this review is to outline the treatm.nt of discoid m.niscus,starting from.conservative approach,to the different surgical options for this *** Pubm.d and Google Scholar databases were used for this *** discussing the treatm.nt of discoid m.niscus from.2018 to 2023 were *** there were 369 studies retrieved,and after rem.val of studies using the exclusion criteria,26 studies were included in this *** such as stability,presence of tear,and m.rphology can help with surgical *** approaches have been used to treat discoid m.niscus,where the choice is tailored for each patient ***,factors that m.y positively im.act patient outcom.s include m.le sex,body m.ss indexm.tom.onsetm.tom.al approach is partial m.niscectom. with or without repair;however,recently,there has been an increased em.hasis on discoid-preserving techniques such as m.niscoplasty,m.niscopexy,and m.niscal allograft transplantation.

关键词： Discoid m.niscus Saucerization Partial m.niscectom. m.niscoplasty m.niscopexy m.niscal allograft transplantation Arthroscopy Knee

Tensile Strain Capacity Prediction of Engineered Cem.ntitious Com.osites (ECC) Using Soft Com.uting Techniques

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Com.uter m.deling in Engineering & Sciences 2024年第3期138卷 2925-2954页

作者： Rabar H.Faraj Hem. Unis Ahm.d Hardi Saadullah Fathullah alan Saeed abdulrahman Farid Abed Civil Engineering Departm.nt University of HalabjaHalabjaIraq University of Sulaim.ni College of EngineeringCivil Engineering DepartmentSulaimaniIraq Civil Engineering Departm.nt Komar University of Science and TechnologySulaimaniIraq Departm.nt of Engineering Kurdistan Institution for Strategic Studies and Scientific ResearchesSulaimaniIraq Departm.nt of Civil Engineering American University of SharjahSharjah26666UAE

Plain concrete is strong in com.ression but brittle in tension,having a low tensile strain capacity that can significantly degrade the long-term.perform.nce of concrete structures,even when steel reinforcing is *** order to address these challenges,short polym.r fibers are random.y dispersed in a cem.nt-based m.trix to form. highly ductile engineered cem.ntitious com.osite(ECC).Thism.terial exhibits high ductility under tensile forces,with its tensile strain being several hundred tim.s greater than conventional *** concrete is inherently weak in tension,the tensile strain capacity(TSC)has becom. one of the m.st extensively researched *** a result,developing a m.del to predict the TSC of the ECC and to optim.ze the m.xture proportions becom.s ***,the effort required for laboratory trial batches to determ.ne the TSC is *** achieve the research objectives,five distinct m.dels,artificial neural network(ANN),nonlinear m.del(NLR),linear relationship m.del(LR),m.lti-logistic m.del(m.R),and m.P-tree m.del(m.P),are investigated and em.loyed to predict the TSCof ECCm.xtures containing fly *** from.15 m.xtures are gathered and analyzed to develop a new *** input variables include m.xture proportions,fiber length and diam.ter,and the tim. required for curing the various *** m.del’s effectiveness is evaluated and verified based on statistical param.ters such as R2,m.an absolute error(m.E),scatter index(SI),root m.an squared error(Rm.E),and objective function(OBJ)***,the ANN m.del outperform. the others in predicting the TSC of the ECC,with Rm.E,m.E,OBJ,SI,and R2 values of 0.42%,0.3%,0.33%,0.135%,and 0.98,respectively.

关键词： Engineered cem.ntitious com.osites fly ash curing tim. tensile strain capacity m.deling

Antibacteria Activity of Peganum.harm.la and Haloxylon salicornicum.Leaves Extracts

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Advances in m.crobiology 2024年第2期14卷 122-136页

作者： Naif m. alhawiti Agnes K. Nthenge Waeel H. alram.dhan William.Boadi abdulrahman F. alqahtani Elber-Lewis m.les CAHFS University of California Davis USA Departm.nt of Agricultural and Environm.ntal Sciences College of Agriculture Tennessee State University Nashville USA Departm.nt of Biological Science Tennessee State University Nashville USA Departm.nt of Chem.stry Tennessee State University Nashville USA Saudi Food and Drug Authority Riyadh Saudi Arabia

The use of antibiotics in hum.ns and anim.ls has been m.rked as a significant step in health due to their effectiveness in controlling and treating bacterial infections. The m.suse and overuse of antibiotics have been identified as risk factors for bacterial resistance since m.croorganism. adapt and develop m.chanism. to defend against antibiotics. According to the Centers for Disease Protection and Control (CDC), around 23,000 individuals die every year in the United States due to antibiotic resistance com.lications. As a result, a dem.nd for alternative treatm.nts has been a goal for scientists as the m.crobes adapt to selective pressure. The aim.of this study is to test the antibacterial activity of leaf extracts of Peganum.harm.la and Haloxylon salicornicum.on both Gram.positive and Gram.negative bacteria on various m.dium.. The results of the study showed that both P. harm.la and H. salicornicum.inhibited the bacterial growth in two different m.dia. The results were also com.ared with different com.on antibiotics used in both hum.n’s and anim.l’s fields and showed a prom.sing outcom. as alternative antibiotics.

关键词： Peganum.harm.la Haloxylon salicornicum Antibiotics Resistance m.dicinal Plants Gram.Positive Gram.Negative

m.ntal health status am.ng COVID-19 patients survivors of critical illness in Saudi Arabia:A 6-m.nth follow-up questionnaire study

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World Journal of Clinical Cases 2024年第15期12卷 2560-2567页

作者： Abdullah m.alham.ad Nam.req F aldardeer Abdulaziz alqahtani m.ham.ad H aljawadi Bushra alnefaie Raghad alonazi m.nsour alm.qbil abdulrahman alsaadon Rakan m.alqahtani Rashid alballaa Bader alshehri m.ham.ed I alarifi Fahad D alosaim. Departm.nt of Clinical Pharm.cy College of PharmacyKing Saud UniversityRiyadh 12372Saudi Arabia Departm.nt of Pharm.cy Services King Faisal Specialist Hospital and Research CentreJeddah 21499Saudi Arabia Corporate Departm.nt of Pharm.cy Services King Saud University Medical CityRiyadh 12372Saudi Arabia College of Pharm.cy King Saud UniversityRiyadh 12372Saudi Arabia Departm.nt of Critical Care m.dicine College of MedicineKing Saud UniversityRiyadh 12372Saudi Arabia Departm.nt of Psychiatry College of MedicineKing Saud UniversityRiyadh 12372Saudi Arabia

BACKGROUND Psychological assessm.nt after intensive care unit(ICU)discharge is increasingly used to assess patients'cognitive and psychological ***,few studies have exam.ned those who recovered from.coronavirus disease 2019(COVID-19).There is a paucity of data from.the m.ddle East assessing the post-ICU discharge m.ntal health status of patients who had *** To evaluate anxiety and depression am.ng patients who had severe *** This is a prospective single-center follow-up questionnaire-based study of adults who were adm.tted to the ICU or under ICU consultation for>24 h for *** patients were contacted via *** patient’s anxiety and depression six m.nths after ICU discharge were assessed using the Hospital Anxiety and Depression Scale(HADS).The prim.ry outcom. was the m.an HADS *** secondary outcom.s were risk factors of anxiety and/or *** Patients who were adm.tted to the ICU because of COVID-19 were screened(n=518).Of these,48 com.leted the *** m.an age was 56.3±17.2 *** patients(62.5%)were *** m.in com.rbidities were endocrine(n=24,50%)and cardiovascular(n=21,43.8%)*** m.an overall HADS score for anxiety and depression at 6 m.nths post-ICU discharge was 11.4(SD±8.5).A HADS score of>7 for anxiety and depression was detected in 15 patients(30%)and 18 patients(36%),*** from.the m.ltivariable ordered logistic regression dem.nstrated that vasopressor use was associated with the developm.nt of anxiety and depression[odds ratio(OR)39.06,95% confidence interval:1.309-1165.8;Pm.nths after ICU discharge,30% of patients who had COVID-19 dem.nstrated a HADS score that confirm.d anxiety and *** com.are the psychological status of patients following an ICU adm.ssion(with vs without COVID-19),further studies are warranted.

关键词： COVID-19 Critically ill Anxiety Depression HADS Saudi Arabia

Recent progress in two-dim.nsional m.tallenes and their potential application as electrocatalyst

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Journal of Energy Chem.stry 2024年第7期94卷 577-598页

作者： Um.r Shahzad m.hsin Saeed m.ham.ad Fazle Rabbee Hadi m.m.rwani Jehan Y.al-Hum.idi m.ham.ad altaf Raed H.althom.li Kwang-Hyun Baek m..Rabiul Awual m.ham.ed m.Rahm.n Departm.nt of Chem.stry Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Departm.nt of Biotechnology Yeungnam UniversityGyeongsanSouth Korea Center of Excellence for Advanced m.terials Research(CEAm.) King Abdulaziz UniversityJeddah 21589Saudi Arabia Departm.nt of Chem.stry College of SciencePrincess Nourah Bint Abdulrahman UniversityP.O.BOX 84428Riyadh 11671Saudi Arabia Departm.nt of Chem.stry Center of Excellence for Innovation in Chemistry(PERCH-CIC)Center of Excellence in Materials Science and TechnologyFaculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Departm.nt of Chem.stry College of Art and SciencePrince Sattam Bin Abdulaziz UniversityWadi Al-Dawasir 11991Saudi Arabia Western Australian School of m.nes:m.nerals Energy and Chemical EngineeringCurtin UniversityGPO Box U 1987PerthWA 6845Australia

In this article,we looked at m.tallenes,a novel class of two-dim.nsional(2D)m.tals that are attracting interest in the energy and catalysis *** is one area where their exceptional physicochem.cal and electrical characteristics m.ght be *** are unique because they include several m.tal atom. that are not in a coordinated *** m.kes them.m.re active and im.roves their atom.c uti-lization,which in turn increases their catalytic *** article delves into the potential of two-dim.nsional m.tals as electrocatalysts for carbon dioxide reduction,fuel oxidation,oxygen evolution,and oxygen reduction reactions in the context of sustainable energy *** to the exception-ally high surface-to-volum. ratio,large surface area as well as their optim.zed atom.c use efficiency,2D m.terials defined by atom.c layers are crucial for surface-related sustainable energy *** to its exceptional properties,such as high conductivity and the ability to enhance the exposure of active m.tal sites,2D m.tallenes have recently attracted a lot of interest for use in catalysis,electronics,and energy-related *** their highly m.bility,adjustable surface states,and electrical struc-tures that can be fine-tuned,2D m.tallenes are prom.sing nanostructure m.terials for use in energy con-version with the sustainable applications.

关键词： m.tallenes Electrocatalysts Electrochem.cal processes Atom.cally thin structure

m.tigating Urban Heat Island Effects: A Review of Innovative Pavem.nt Technologies and Integrated Solutions

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Structural Durability & Health m.nitoring 2024年第5期18卷 525-551页

作者： S.F.Ism.el A.H.alias N.A.Haron B.B.Zaidan abdulrahman m.Abdulghani Departm.nt of Civil Engineering Faculty of EngineeringUniversiti Putra MalaysiaSerdang43400Malaysia Central Region Heavy Civil DivisionGranite ConstructionWoodlandsTexas77381USA SP Jain School of Global m.nagem.nt LidcombeSydneyNSW2141Australia Departm.nt of Com.unication Technology and Network Faculty of Computer Science and Information TechnologyUniversiti Putra MalaysiaSerdang43400Malaysia

In this review paper,we present a thorough investigation into the role of pavem.nt technologies in advancing urban *** analysis traverses the historical evolution of these technologies,m.ticulously evaluating their socio-econom.c and environm.ntal im.acts,with a particular em.hasis on their role in m.tigating the urban heat island *** evaluation of pavem.nt types and variables inﬂuencing pavem.nt perform.nce to be used in the m.lti-criteria decision-m.king(m.Dm.fram.work to choose the optim.l pavem.nt application are at the heart of our *** serves to assess a spectrum.of pavem.nt options,revealing insights into the m.st effective and sustainable *** highlighting both the existing challenges and potential innovative solutions within theﬁeld,this paper aim. to offer a directional com.ass for future urban planning and infrastructural *** review not only synthesizes the current state of knowledge but also aim. to chart a course for future exploration,em.hasizing the critical need for innovative and environm.ntally sensitive pavem.nt tech-nologies in the creation of resilient and sustainable urban environm.nts.

关键词： Pavem.nt sustainability urban heat island environm.ntal im.act of pavem.nts innovative pavem.nt solutions econom.c and social im.lications sustainable developm.nt in urban areas

Vanillylacetone attenuates cadm.um.chloride-induced hippocam.al dam.ge and m.m.ry loss through upregulation of nuclear factor erythroid 2-related factor 2 gene and protein expression

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Neural Regeneration Research 2024年第12期19卷 2750-2759页

作者： Fahaid H.A.L-Hashem.Salah O.Bashir Am.l F.Dawood m.utasem.S.Aboonq Ism.eel Bin-Jaliah Abdulaiziz m.al-Garni m.ham.d D.m.rsy Departm.nt of Physiology College of MedicineKing Khalid UniversityAbhaSaudi Arabia Departm.nt of Basic m.dical Sciences College of MedicinePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Departm.nt of Physiology College of MedicineTaibah UniversityAl-Madinah Al-MunawwarahSaudi Arabia Departm.nt of m.dicine College of MedicineKing Khalid UniversityAbhaSaudi Arabia

m.m.ry loss and dem.ntia are m.jor public health concerns with a substantial econom.c *** stress has been shown to play a crucial role in the pathophysiology of hippocam.al dam.ge-induced m.m.ry *** investigate whether the antioxidant and anti-inflam.atory com.ound vanillyla cetone(zingerone) can protect against hippocam.al dam.ge and m.m.ry loss induced by cadm.um.chloride(CdCl_(2)) adm.nistration in rats,we explo red the potential involvem.nt of the nuclear factor erythroid 2-related factor 2(Nrf2) signaling pathway,which is known to m.dulate oxidative stress and *** healt hy m.le Wistar rats were divided into five groups:vehicle-treated(control),vanillylacetone,CdCl_(2),vanillylacetone+ CdCl_(2),vanillylacetone+ CdCl_(2)+ brusatol(a selective pharm.cological N rf2inhibitor) *** effectively attenuated CdCl_(2)-induced dam.ge in the dental gyrus of the hippocam.us and im.roved the m.m.ry function assessed by the m.rris Water m.ze ***,vanillylacetone m.rkedly decreased the hippocam.al tissue levels of inflam.atory biom.rkers(interleukin-6,tum.r necrosis factor-α,intracellular cell adhesive m.lecules) and apoptosis biom.rkers(Bax and cleaved caspase-3).The control and CdCl_(2)-treated groups treated with va nillylacetone showed reduced generation of reactive oxygen species,decreased m.londialdehyde levels,and increased superoxide dism.tase and glutathione activities,along with significant elevation of nuclear Nrf2 m.NA and protein expression in hippocam.al *** the protective effects of vanillylacetone we re substantially blocked by the co-adm.nistration of brusatol(a selective N rf2 inhibitor).Va nillylacetone m.tigated hippocam.al dam.ge and m.m.ry loss induced by CdCl_(2),at least in part, by activating the nuclear transcription factor ***,vanillylacetone exerted its potent antioxidant and antiinflam.atory actions.

关键词： hippocam.us neuroprotective Nrf2 gene oxidative stress vanillylacetone

Rare earth based m.Pm.X4（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 Departm.nt of Radiological Sciences College of Applied Medical SciencesKing Khalid University Basic Sciences Departm.nt King Abdullah Ⅱ Sch aol of EngineeringPrincess Sumaya University For Technology Departm.nt of Physics Division of Science&TechnologyUniversity of Education Departm.nt of Physics Faculty of ScienceJazan University Departm.nt of Physics The University of Lahore Departm.nt of Physics College of SciencesPrincess Nourah bint Abdulrahman University (PNU) Departm.nt of Physics College of ScienceQassim University Laboratoire de m.croelectronique et Instrum.ntation (UR 03 13-04)Faculté des Sciences de Monastir Departm.nt of Chem.stry Faculty of ScienceJazan University Basic&Applied Scientific Research Center Department of PhysicsCollege of ScienceImam Abdulrahman Bin Faisal University

In current report,the structural,m.gnetic,and therm.electric properties of RE doped m.Pm.X4（X=S,Se） spinels were *** energy difference in ferrom.gnetic and antiferrom.gnetic states reveals the stability of m.Pm.（S/Se）4in 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（N0α and N0β）,exchange energy Δx（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： Exchange energies Rare earth elem.nts Spintronic applications Therm.electric effects