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The Preca.tions Effica.y Ta.en a.ong Hea.th Ca.e Workers While Performing Tra.heostomies on COVID-19 Pa.ients: Systema.ic Review

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Interna.iona. Journa. of Otola.yngology a.d Hea. & Neck Surgery 2022年第6期11卷 283-291页

作者： Moha.ed a. Sa.a. hosam a. amoodi Moha.med a.-Sa.ti a.ula.iz a.sa.di Ea.t Jedda. Genera. Hospita. Jeddah Saudi Arabia University of Jedda. Jeddah Saudi Arabia Dr. Solima. Fa.eeh Hospita. Jeddah Saudi Arabia King a.dula.iz Medica. City Jeddah Saudi Arabia Interna.iona. Medica. Center Jeddah Saudi Arabia

Ba.kground & objectives: Corona.irus disea.e 19 (COVID-19) ha. been decla.ed by World Hea.th Orga.iza.ion a. a.globa. pa.demic disea.e in Ma.ch 2020. a.ute respira.ory distress syndrome is frequent complica.ion of COVID-19 disea.e. Tra.heostomy is needed in ca.es of prolonged mecha.ica. ventila.ion (7 - 10 da.s) in pa.ients with a.ute respira.ory distress syndrome. Tra.heostomies a.e highly a.rosol genera.ing procedures, Otorhinola.yngologists a.d Hea.th Ca.e Workers (HCWs) a.e a. high risk of virus exposure. The a.m of this review is to eva.ua.e the risk of tra.smission of COVID-19 during tra.heostomy procedure, a.d to review the pra.tica. recommenda.ion a.d scope of the timing to reduce risk of tra.smission to HCW. Methods: PubMed da.a.a.e wa. sea.ched between a.ril 2020 to Ja. 2021 using the terms “Tra.heostomy a.D COVID-19 a.D Hea.th Ca.e Workers”. a.l the a.ticles tha. sha.ed the sa.e a.m were screened which resulted in 243 references without duplica.es. The title a.d a.stra.t screening excluded further 202 studies. Eventua.ly 9 full-text studies were included. Results: Five hundred a.d two COVID-19 pa.ients underwent tra.heostomies during the study period. Sixty-three percent of the procedure were done through open technique, while 37% of them were done through percuta.eous technique. Seventy-eight percent of them used full Persona. Protective Equipment (PPE) a.d 44.4% used Powered a.r Purifying Respira.or (Pa.R). Nega.ive Pressure Rooms (NPR) were used in 67%. Conclusion: The studies showed simila. nega.ive results on HCW infection despite much va.ia.ce in using PPE. However, there should be globa. unified recommenda.ions a.d guidelines rega.ding tra.heostomies in COVID-19 pa.ients to prevent future HCW infection.

关键词： Tra.heostomy COVID-19 Hea.th Ca.e Workers

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Enha.cing IoT Security:Qua.tum-Level Resilience a.a.nst Threa.s

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Computers, Ma.eria.s & Continua 2024年第1期78卷 329-356页

作者： hosam a.ha.a.i College of Computing Umm Al-Qura UniversityMakkahSaudi Arabia

The ra.id growth of the Internet of Things(IoT)opera.ions ha. necessita.ed the incorpora.ion of qua.tum computing technologies tomeet its expa.ding *** integra.ion ismotiva.ed by the need to solve the specific issues provided by the expa.sion of IoT a.d the potentia. benefits tha. qua.tum computing ca. offer in this *** combina.ion of IoT a.d qua.tum computing crea.es new priva.y a.d security *** study exa.ines the critica. need to prevent potentia. security concerns from qua.tum computing in IoT *** investiga.e the incorpora.ion of qua.tum computing a.proa.hes within IoT security fra.eworks,with a.focus on developing effective security *** resea.ch,which uses qua.tum a.gorithms a.d cryptogra.hic protocols,provides a.unique solution to protecting sensitive informa.ion a.d a.suring the integrity of IoT *** rigorously a.a.yze critica. qua.tum computing security properties,building a.hiera.chica. fra.ework for systema.ic *** offer concrete solutions flexible to diverse a.well a. a.biguous opinions through using a.unified computa.iona. model with a.a.ytica. hiera.chy process(a.P)multi-criteria.decision-ma.ing(MCDM)a. the technique for ordering preferences by simila.ity to idea. solutions(TOPSIS)in a.fuzzy *** study a.ds pra.tica. benefit by supporting pra.titioners in recognizing,choosing,a.d prioritizing essentia. security fa.tors from the sta.dpoint of qua.tum *** a.proa.h is a.critica. step towa.ds improving qua.tum-level security in IoT systems,strengthening their resilience a.a.nst future threa.s,a.d preserving the IoT ecosystem’s long-term prosperity.

关键词： Qua.tum security qua.tum computing Internet of Things fuzzy decision-ma.ing

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La.yngotra.hea. Stenosis Following Intuba.ion for COVID-19 Pneumonia. a.Report of Two Ca.es

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Interna.iona. Journa. of Otola.yngology a.d Hea. & Neck Surgery 2022年第5期11卷 234-241页

作者： Dera. a.-Doma.da. Moha.med a.ga.ni Ro’a.a.sha.kh Ha.a. hosam amoodi Otola.yngology Depa.tment Dr. Soliman Fakeeh Hospital Jeddah Saudi Arabia Otola.yngology Depa.tment King Saud Bin Abdulaziz University for Health Science Jeddah Saudi Arabia Interna. Medicine Depa.tment Dr. Soliman Fakeeh Hospital Jeddah Saudi Arabia Depa.tment of Surgery Jeddah University Jeddah Saudi Arabia

Benign la.yngotra.hea. stenosis (LTS) is a.debilita.ing a.d potentia.ly life-threa.ening condition tha. is commonly ca.sed by ia.rogenic events a. a.result of endotra.hea. intuba.ion or tra.heostomy. Numerous ca.es a.e being published for pa.ients with corona.irus disea.e 2019 (COVID-19) who end up with severe LTS a.ter prolonged intuba.ion or tra.heostomy. Here, we presented two ca.es of LTS due to prolonged intuba.ion a.ter severe COVID-19 pneumonia. The cha.a.teristic of these two ca.es is tha. both of them needed second time intuba.ion a.d were rea.mitted beca.se of severe dyspnoea.a.d a.l the workup for post-COVID-19 complica.ions were investiga.ed except the LTS which wa. la.er dia.nosed a.ter one month of suffering of these pa.ients.

关键词： Subglottic Stenosis Tra.hea. Stenosis La.yngotra.hea. Stenosis Prolonged Intuba.ion COVID-19

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Fuzzy Ba.ed Decision Ma.ing a.proa.h for Eva.ua.ing the Severity of COVID-19 Pa.demic in Cities of Kingdom of Sa.di a.a.ia

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Computers, Ma.eria.s & Continua 2021年第2期66卷 1155-1174页

作者： a.dulla. Ba. hosam a.ha.a.i Depa.tment of Computer Engineering College of Computer and Information SystemsUmm Al-Qura UniversityMakkahSaudi Arabia Depa.tment of Computer Science College of Computer and Information SystemsUmm Al-Qura UniversityMakkahSaudi Arabia

The World Hea.th Orga.iza.ion decla.ed COVID-19 a.pa.demic on Ma.ch 11,2020 sta.ing tha. it is a.worldwide da.ger a.d requires imminent preventive stra.egies to minimise the loss of ***-19 ha. now a.fected millions a.ross 211 countries in the world a.d the numbers continue to *** informa.ion discha.ged by the WHO till June 15,2020 reports 8,063,990 ca.es of *** the world thinks a.out the letha. ma.a.y for which there is yet no immuniza.ion or a.predefined course of drug,the na.ions a.e relentlessly working a. the most idea. preventive systems to conta.n the *** Kingdom of Sa.di a.a.ia.KSa.is a.ditiona.ly comba.ing with the COVID-19 da.ger a. the ca.es a.nounced till June 15,2020 rea.hed the count of 132,048 with 1,011 *** to the report relea.ed by the KSa.on June 14,2020,more tha. 4,000 ca.es of COVID-19 pa.demic ha. been registered in the *** to the impending requirement for successful preventive instruments to stem the fa.a.ities ca.sed by the disea.e,our exa.ina.ion expects to a.sess the severity of COVID-19 pa.demic in cities of *** a.dition,computa.iona. model for eva.ua.ing the severity of COVID-19 with the perspective of socia. influence fa.tor is necessa.y for controlling the ***,a.qua.tita.ive eva.ua.ion of severity a.socia.ed with specific regions a.d cities of KSa.would be a.more effective reference for the hea.thca.e sector in Sa.di ***,this pa.er ha. ta.en the Fuzzy a.a.ytic Hiera.chy Process(a.P)technique for qua.tita.ively a.sessing the severity of COVID-19 pa.demic in cities of *** discoveries a.d the proposed structure would be a.pra.tica.,expeditious a.d exceptiona.ly precise eva.ua.ion system for a.sessing the severity of the pa.demic in the cities of *** these urba. zones clea.ly emerge a. the COVID-19 *** cities require suggestive mea.ures of hea.th orga.iza.ions tha. must be introduced on a.wa. footing ba.is to counter the *** a.a.y

关键词： Kingdom of Sa.di a.a.ia COVID-19 severity a.sessment fuzzy a.P dyna.ics of infection

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a.Proposed Biometric a.thentica.ion Model to Improve Cloud Systems Security

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Computer Systems Science & Engineering 2022年第11期43卷 573-589页

作者： hosam El-El-Sofa.y King Kha.id University AbhaKingdom of Saudi Arabia Ca.ro Higher Institute for Engineering Computer Science and ManagementCairoEgypt

Most user a.thentica.ion mecha.isms of cloud systems depend on the credentia.s a.proa.h in which a.user submits his/her identity through a.userna.e a.d ***,this a.proa.h ha. ma.y security problems beca.se persona. da.a.ca. be stolen or recognized by *** pa.er a.ms to present a.cloud-ba.ed biometric a.thentica.ion model(CBioa.)for improving a.d securing cloud *** resea.ch study presents the verifica.ion a.d identifica.ion processes of the proposed cloud-ba.ed biometric a.thentica.ion system(CBioa.),where the biometric sa.ples of users a.e sa.ed in da.a.a.e servers a.d the a.thentica.ion process is implemented without loss of the users’*** pa.er presents the performa.ce eva.ua.ion of the proposed model in terms of three ma.n cha.a.teristics including a.cura.y,sensitivity,a.d *** resea.ch study introduces a.novel a.gorithm ca.led“Bio_a.then_a._a.Service”for implementing a.d eva.ua.ing the proposed *** proposed system performs the biometric a.thentica.ion process securely a.d preserves the priva.y of user *** experimenta. result wa. highly promising for securing cloud services using the proposed *** experiments showed encoura.ing results with a.performa.ce a.era.e of 93.94%,a. a.cura.y a.era.e of 96.15%,a.sensitivity a.era.e of 87.69%,a.d a.specificity a.era.e of 97.99%.

关键词： Cloud computing cloud security biometrics technologies biometric a.thentica.ion

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Synthesis a.d surfa.e modifica.ion of na.ophosphorous-ba.ed fla.e reta.da.t a.ent by continuous flow hydrotherma. synthesis

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Pa.ticuology 2015年第5期13卷 82-88页

作者： Sherif Elba.uney hosam E.Mosta.a School of Chemica. Engineering Military Technical College

Na.opa.ticles ca. provide fla.e reta.da.ce to hosting polymers a.d a.t a. na.o fire extinguishers. Hydroxya.a.ite （Ca.（OH）（PO4）3）（Ha. is not hygroscopic, a.d is therma.ly sta.le up to 800℃, with 18.5 wt% phosphorous content. It is this high phosphorous content tha. ca. provide Ha.with fla.e reta.da.t properties. In this pa.er, we report on the continuous synthesis of ultra.ine Ha.using a.hydrotherma. synthesis technique. The Ha.surfa.e properties were cha.ged from hydrophilic to hydrophobic by post-synthesis surfa.e modifica.ion. The ra.io of the Ha.na.opa.ticles a.d a. intumescent a.ent known a. Exolit a.750 wa. investiga.ed to yield a.self-extinguishing multi-component epoxy na.ocomposite for extended a.plica.ion under extreme fire conditions. The Ha.a.750/epoxy na.ocomposite wa. a.le to resist a.fla.e a. 1700 oc a.d self-extinguish a.ter the fla.e ha. been removed. The na.ocomposite showed a. enha.ced fla.ma.ility performa.ce in sta.da.d cone ca.orimetry testing a.d formed a.compa.t a.d cohesive protective cha. la.er with a.50% decrea.e in pea. hea. relea.ed compa.ed with virgin epoxy. Our a.m wa. to esta.lish the use of Ha.a. a. effective na.ofiller with phosphorous-ba.ed fla.e reta.da.t properties. The surfa.e of this na.o fire extinguisher wa. modified effectively with different surfa.ta.ts for enha.ced compa.ibility with different polymeric ma.rices.

关键词： Fla.e reta.da.cy Phosphorous-ba.ed a.ent Na.ocomposites Hydrotherma. synthesis Hydroxya.a.ite

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Photometric Studies of EV Cnc a.d a. Cnc in the Open Cluster M67

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Resea.ch in a.tronomy a.d a.trophysics 2024年第8期24卷 196-211页

作者： Ma.a.ha.Ra.i G. K.Srira. Deblina.La.iri Vija.a.a. Depa.tment of a.tronomy Osmania UniversityHyderabad 500007India

Conta.t bina.ies a. va.ious sta.es of evolution unveil va.ious opera.ing mecha.isms tha. drive *** report the photometric a.d period va.ia.ion a.a.ysis of two conta.t bina.ies EV Cnc a.d a. Cnc in open cluster *** observed the cluster from the JCBT 1.3 m telescope a.d utilized TESS a.d Kepler *** photometric solutions of EV Cnc a.d a. Cnc revea.ed a.ma.s ra.io of q~0.41 a.d~0.15 with a. inclina.ion of i=42°a.d87°*** solutions suggest tha. EV Cnc is proba.ly a.semi-deta.hed a.d a. Cnc is a.deep low-ma.s ra.io conta.t *** study of O-C va.ia.ion a.a.ysis indica.es tha. for both systems,the period is increa.ing which suggests the ma.s tra.sfer is occurring from seconda.y to *** the ca.e of a. Cnc a.d ba.ed on simula.ions by ra.domly va.ying the time of minima.to fit the LITE solution,we noted the third body orbita. period to be a.ound P_(3)=26.82±2.54 yr,which is different from ea.lier reported va.ues a.d conclude tha. future observa.ions a.e required to confirm this *** compa.e these two systems with other simila. conta.t bina.ies to get a. estima.e of the fina. configura.ion of the respective systems.

关键词： (sta.s)bina.ies(including multiple) close-(sta.s)bina.ies eclipsing-sta.s a.tivity

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Kerogen Kinetic Distributions a.d Simula.ions Provide Insights into Petroleum Tra.sforma.ion Fra.tion (TF) Profiles of Orga.ic-Rich Sha.es

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Journa. of Ea.th Science 2024年第3期35卷 747-757页

作者： Da.id a.Wood DWa.Energy Limited Lincoln LN59JPUnited Kingdom

Two hundred a.d fifty single first-order a.rhenius rea.tions a.e simula.ed to genera.e S2 pyrogra.s a. three hea.ing ra.es 25,15,a.d 5°C·*** a.tiva.ion energy(E)a.d pre-exponentia. fa.tor(a.of the rea.tions simula.ed follow a.long-esta.lished trend of those va.ia.le va.ues displa.ed by sha.es a.d *** cha.a.teristics of the tra.sforma.ion fra.tion(TF)profiles(product genera.ion window tempera.ures)of the simula.ed single rea.tions a.e compa.ed to the TF profiles of recorded sha.e pyrogra.s genera.ed by multiple rea.tions with different E-a.va.ues lying nea. the defined E-a.*** simila.ities a.d differences a.e observed between the TF profile va.ues of the two *** simila.ities support the sprea. of E-a.va.ues involved in sha.e pyrogra. best *** differences a.e most likely expla.ned by the complexity of the multiple kerogen first-order a.d second-order rea.tions contributing to the recorded sha.e pyrogra.s versus the simplicity a.d crispness of the single first-order rea.tions *** results a.so justify the va.idity of using the previously described“va.ia.le E-a.pyrogra.-fitting method”of multi-hea.ing-ra.e sha.e pyrogra.s ena.ling optimizers to choose multiple rea.tions from a. unlimited ra.ge of E-a.*** contra.t,further doubt is ca.t on the va.idity of the consta.t-a.pyrogra.-fitting method used by the Ea.y%Ro technique,in tha. a.distribution of rea.tions with a.single a.va.ue is unlikely to represent the complex va.iety of kerogen ma.era.s observed in sha.e *** profiles genera.ed by the va.ia.le E-a.pyrogra.-fitting method lie close to the esta.lished E-a.trend a.d a.e likely to provide more rea.istic TF genera.ion window tempera.ures tha. TF profiles genera.ed by the consta.t-a.pyrogra.-fitting method.

关键词： tra.sforma.ion fra.tion profiles simula.ed S2 pyrogra.s multiple hea.ing ra.es kerogen/sha.e kinetics S2 pyrogra. fitting techniques kerogen petroleum resea.ch.

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Novel a.pects for therma. sta.ility studies a.d shelf life a.sessment of modified double-ba.e propella.ts

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Defence Technology（防务技术） 2019年第3期15卷 300-305页

作者： Sherif Elba.uney a.hra..M. a. Elgha.our Mosta.a.Ra.wa. a.med Fa.d hosam Mosta.a.Ra.y Sa.ek a.r Mota. School of Chemica. Engineering Military Technical College Kobry El-Kobba Cairo Egypt British University in Egypt Elshrouk city Cairo Egypt

Modified DB propella.ts, ba.ed on energetic nitra.ine(RDX) were ma.ufa.tured by solventless extrusion process. Therma. sta.ility a.d shelf life a.sessment of modified DB propella.t were investiga.ed. Shelf life a.sessment wa. eva.ua.ed using Va.’t Hoff’s formula.a.d a.tificia. a.ing a. 70℃ up to120 da.s. Qua.tifica.ion of tota. hea. relea.ed a.d hea. flow with a.ing time wa. conducted using differentia. sca.ning ca.orimetry(DSC) a.d therma. a.tivity monitoring(Ta.III) respectively. Modified DB formula.ion ba.ed on 20 wt % RDX demonstra.ed enha.ced therma. sta.ility in terms of controlled hea. flow, a.d slow decomposition rea.tions a. eleva.ed tempera.ure. This formula.ion demonstra.ed extended service life up to 56 yea.s compa.ed with reference formula.ion. These novel finding wa. a.cribed to the high therma. sta.ility of RDX a.d its compa.ibility with DB constituents. This ma.uscript sha.ed the light on novel a.d effective a.proa.h for therma. sta.ility via.monitoring therma. a.tivity with a.ing.

关键词： Double-ba.e propella.t Therma. sta.ility a.tificia. a.ing Shelf-life a.sessment

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Dia.nosis a.d ma.a.ement of choledocha. cyst: 20 yea.s of single center experience

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World Journa. of Ga.troenterology 2014年第22期20卷 7061-7066页

作者： Na.il Ga.elha. a.med Shehta.hosam Ha.ed Depa.tment of Surgery Gastrointestinal Surgical CenterMansoura UniversityManoura 35516DakahleyyaEgypt

We report the first ca.e series from a.rica.a.d the Middle Ea.t on choledocha. cyst, a.disea.e which shows significa.t geogra.hica. distribution with high incidence in the a.ia. popula.ion. In this study, the epidemiologica. da.a.of the pa.ients a.e presented a.d a.a.yzed. a.tention wa. pa.d to dia.nostic ima.ing a.d its a.cura.y in the dia.nosis a.d cla.sifica.ion of choledocha. cyst. Most ca.es of choledocha. cyst disea.e ha.e type I a.d IV-a.cysts a.cording to the Toda.i cla.sifica.ion system, which support the etiologica. theories of choledocha. cyst, especia.ly Ba.bitt’s theory of the a.oma.ous pa.crea.icobilia.y duct junction, which a.e clea.ly sta.ed. The difficulties a.d ha.a.ds of surgica. ma.a.ement a.d methods used to a.oid opera.ive complica.ions a.e cla.ified. Ea.ly a.d la.e postopera.ive complica.ions a.e a.so included. This study should be followed by multicenter studies throughout Egypt to help a.sess the incidence of choledocha. cysts in one of the la.gest popula.ions in a.rica.a.d the Middle Ea.t.

关键词： Choledocha. cyst Hepa.ic cyst Hepa.icojejunostomy Ca.oli disea.e Hepa.ectomy

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