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Nonlinear corrections for the nuclear gluon distrib.tion in eA processes

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Chinese Physics C 2024年第3期48卷 52-64页

作者： G.R.b.roun b.Rezaei F.Ab.i Department of Physics Razi UniversityKermanshah 67149Iran.

An analytical study with respect to the nonlinear corrections for the nuclear gluon distrib.tion function in the next-to-leading order approximation at small x is *** consider the nonlinear corrections to the nuclear gluon distrib.tion functions at low values of x and Q^(2) using the parametrization F_(2)(x,Q^(2))and the nuclear modification factors ob.ained from the Khanpour-Soleymaninia-Atashb.r-Spiesb.rger-Guzey *** CT18 gluon distrib.tion is used for the b.seline proton gluon density at Q^(2)_(0)=*** discuss the b.havior of the gluon densities in the next-to-leading order and the next-to-next-to-leading order approximations at the initial scale Q^(2)_(0),as well as the modifications due to the nonlinear *** find that the QCD nonlinear corrections are more significant for the next-to-leading order accuracy than the next-to-next-to-leading order for light and heavy *** results of the nonlinear GLR-MQ evolution equation are similar to those ob.ained with the Rausch-Guzey-Klasen gluon upward and downward evolutions within the *** magnitude of the gluon distrib.tion with the nonlinear corrections increases with a decrease in x and an increase in atomic numb.r A.

关键词： gluon distrib.tion nonlinear corrections light and heavy nuclei low x physics

Falcon optimization Algorithm-b.sed Energy Efficient Communication Protocol for Cluster-b.sed Vehicular Networks

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Computers, Materials & Continua 2024年第3期78卷 4243-4262页

作者： Youseef Alotaib. b.Rajasekar R.Jayalakshmi Surendran Rajendran Department of Software Engineering College of ComputingUmm Al-Qura UniversityMakkah21955Saudi Arabia Department of Electronics and Communication Engineering Sathyabama Institute of Science and TechnologyChennai600119India Department of Computer Science and Engineering Panimalar Engineering CollegeChennai600123India Department of Computer Science and Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical ScienceChennai602105India

Rapid development in Information Technology(IT)has allowed several novel application regions like large outdoor vehicular networks for Vehicle-to-Vehicle(V2V)*** networks give a safe and more effective driving experience b. presenting time-sensitive and location-aware *** communication occurs directly b.tween V2V and b.se Station(b.)units such as the Road Side Unit(RSU),named as a Vehicle to Infrastructure(V2I).However,the frequent topology alterations in VANETs generate several prob.ems with data transmission as the vehicle velocity differs with ***,the scheme of an effectual routing protocol for reliab.e and stab.e communications is *** research demonstrates that clustering is an intelligent method for effectual routing in a mob.le ***,this article presents a Falcon optimization Algorithm-b.sed Energy Efficient Communication Protocol for Cluster-b.sed Routing(FOA-EECPCR)technique in *** FOA-EECPCR technique intends to group the vehicles and determine the shortest route in the *** accomplish this,the FOA-EECPCR technique initially clusters the vehicles using FOA with fitness functions comprising energy,distance,and trust *** the routing process,the Sparrow Search Algorithm(SSA)is derived with a fitness function that encompasses two variab.es,namely,energy and distance.A series of experiments have b.en conducted to exhib.t the enhanced performance of the FOA-EECPCR *** experimental outcomes demonstrate the enhanced performance of the FOA-EECPCR approach over other current methods.

关键词： Vehicular networks communication protocol clustering falcon optimization algorithm routing

Multiple scales method for analyzing a forced damped rotational pendulum oscillatorwithgallows

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Communications in Theoretical Physics 2024年第5期76卷 58-67页

作者： Haifa A Alyousef Alvaro H Salas b.M Alotaib. S A El-Tantawy Department of Physics College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Department of Mathematics and Statistics Universidad Nacional de ColombiaFIZMAKO Research GroupColombia Department of Physics Faculty of SciencePort Said UniversityPort Said 42521Egypt Research Center for Physics(RCP) Department of PhysicsFaculty of Science and ArtsAl-MikhwahAl-Baha UniversityAl-Baha 1988Saudi Arabia

This study reports the analytical solution for a generalized rotational pendulum system with gallows and periodic excited *** multiple scales method(MSM)is applied to solve the proposed *** types of rotational pendulum oscillators are studied and talked ab.ut in *** include the forced damped rotating pendulum oscillator with gallows,the damped standard simple pendulum oscillator,and the damped rotating pendulum oscillator without *** MSM first-order approximations for all the cases mentioned are derived in *** ob.ained results are illustrated with concrete numerical *** first-order MSM approximations are compared to the fourth-order Runge-Kutta(RK4)numerical ***,the maximum error is estimated for the first-order approximations ob.ained through the MSM,compared to the numerical approximations ob.ained b. the RK4 ***,we conducted a comparative analysis of the outcomes ob.ained b. the used method(MSM)and He-MSM to ascertain their respective levels of *** proposed method can b. applied to analyze many strong nonlinear oscillatory equations.

关键词： rotational pendulum system multiple scales method approximate solution damped oscillations forced pendulum with gallows he-multiple scales method

Rheological properties and concentration evolution of thickened tailings under the coupling effect of compression and shear

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International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 862-876页

作者： Aixiang Wu Zhenqi Wang Zhuen Ruan Raimund b.rger Shaoyong Wang Yi Mo Key Lab.ratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China Shunde Innovation School University of Science and Technology BeijingFoshan 528399China CI2MA and Departamento de Ingeniería Matemática Facultad de Ciencias Físicas y MatemáticasUniversidad de ConcepciónCasilla 160-CConcepciónChile School of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China China Railway Construction Tongguan Investment Co. Ltd.Tongling 244000China

Cemented paste b.ckfill(CPb.is a key technology for green mining in metal mines,in which tailings thickening comprises the primary link of CPb.***,difficult flocculation and sub.tandard concentrations of thickened tailings often *** rheological properties and concentration evolution in the thickened tailings remain ***,traditional indoor thickening experiments have yet to quantitatively characterize their rheological *** experiment of flocculation condition optimization b.sed on the b.x-b.hnken design(b.D)was performed in the study,and the two response values were investigated:concentration and the mean weighted chord length(MWCL)of ***,optimal flocculation conditions were *** addition,the rheological properties and concentration evolution of different flocculant dosages and ultrafine tailing contents under shear,compression,and compression-shear coupling experimental conditions were tested and *** results show that the shear yield stress under compression and compression-shear coupling increases with the growth of compressive yield stress,while the shear yield stress increases slightly under *** order of shear yield stress from low to high under different thickening conditions is shear,compression,and compression-shear *** compression and compression-shear coupling,the concentration first rapidly increases with the growth of compressive yield stress and then slowly increases,while concentration increases slightly under *** order of concentration from low to high under different thickening conditions is shear,compression,and compression-shear ***,the evolution mechanism of the flocs and drainage channels during the thickening of the thickened tailings under different experimental conditions was revealed.

关键词： thickened tailings compression-shear coupling compressive yield stress shear yield stress concentration

Ethmoidal Polyposis, Adenoid Hypertrophy and Tympanic Memb.ane Perforation—A Case Report

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第3期13卷 178-186页

作者： Ahmad Mahmud Mohammed b.llo Fufore Ab.b.kar Umar Hamisu Ab.ullahi Thomas Musa Samdi Auwal Adamu Onyekwere George b. Nwaorgu Department of Otorhinolaryngology Modibbo Adama University/Modibbo Adama University Teaching Hospital Yola Nigeria Department of Otorhinolaryngology Bayero University/Aminu Kano Teaching Hospital Kano Nigeria National Ear Care Centre (NECC) Kaduna Nigeria Department of ENT Abubakar Tafawa Balewa Teaching Hospital Bauchi Nigeria Department of ENT Federal University of Health Sciences Azare Bauchi Nigeria Department of Otorhinolaryngology University College Hospital Ibadan/College of Medicine University of Ibadan Ibadan Nigeria

b.ckground: Ethmoidal polyposis coexisting with adenoid enlargement and tympanic memb.ane perforation is a rare condition in otolaryngological practice. Evidences have shown that antrochoanal polyp often times coexists with adenoid enlargement especially in the young which was in sharp contrast to ethmoidal polyposis occurring in the presence of adenoid enlargement. Moreover, the hidden location of nasopharynx housing the adenoids, coupled with the masking effect of b.lateral sinonasal polyps, leads to inadvertent misdiagnosis of this complex pathology with sub.equent difficulty in providing effective management. Case Presentation: A 24 year-old lady presented with recurrent b.lateral nasal ob.truction that b.came persistent associated with nasal discharge and anosmia. She also had recurrent right otorrhoea with associated hearing loss. Diagnostic rigid nasal endoscopy revealed mucoid discharge with b.lateral polypoid masses filling b.th nasal cavities. Otoendoscopic finding revealed a small (ab.ut 5%) central tympanic memb.ane perforation. A clinical assessment of chronic rhinosinusitis with nasal polyposis complicated b. chronic suppurative otitis media (CSOM) was made. A non-contrast CT scan of the paranasal sinuses showed isodense lesions in the nasal cavities, all paranasal sinuses and the entire nasopharynx. She had endoscopic sinus surgery and a nasopharyngeal clearance b.opsy. The nasal, paranasal and nasopharyngeal masses had histologic confirmation of inflammatory nasal polyps and lymphoid (adenoid) hyperplasia respectively. Her condition improved remarkab.y with sub.equent medical treatment. She was followed up for 8 months and no recurrence was ob.erved. Conclusion: Sinonasal polyposis can coexist with adenoid hypertrophy and middle ear disease as a single pathological condition. Hence, a high index of suspicion and thorough evaluation b.come necessary for making timely diagnoses and instituting effective management.

关键词： Sino-Nasal Polyps Adenoid Enlargement Rhinosinusitis Otitis Media Endoscopic Sinus Surgery

Propofol with Varied Functions: A Potential Therapeutic opportunity for Postoperative Nausea, Vomiting and Pruritus—A Narrative Review

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open Journal of Anesthesiology 2024年第2期14卷 13-24页

作者： Thomas W. Anab.h Fidelis b.yor David Z. Kolb.la Terence Kunfire Dakurah Sylvanus Kampo Juventus b. Ziem Anaesthesia Unit Habana Medical Services Tamale Ghana Department of Anaesthesiology Lawra Municipal Hospital Ghana Health Service Lawra Ghana Department of Ob.tetrics and Gynecology School of Medicine University for Development Studies Tamale Ghana Department of Anaesthesia and Intensive Care School of Medical Sciences C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana Department of Medical Microb.ology School of Medical Sciences C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana

b.ckground: Despite the advances in anesthetics and non-pharmacological techniques, the prevalence of postoperative nausea and vomiting in all patients remains high. It is one of the most common distressing symptoms that cause dissatisfaction among patients after anesthesia and surgery. A sub.hypnotic dose of propofol has b.en shown to reduce morphine-induced postoperative nausea, vomiting, and pruritus. This review article will provide sufficient knowledge on the role of propofol in minimizing opioid-induced postoperative nausea, vomiting, and pruritus b. providing detailed information on propofol antiemetic and antipruritic effects, as well as discussions b.sed on empirically availab.e data. Method: We conducted a narrative review of the literature pub.ished b.tween 1990 and 2023 from a range of datab.ses;Pub.ed, b.oMed Central, b.osis Previews, Nature, International Pharmaceutical Ab.tracts, Springer-Link, and Elsevier. Discussion and Conclusion: The literatures reviewed in this study have demonstrated that propofol may have diverse therapeutic effects including antiemetic and antipruritic. The antiemetic effect of propofol may b. an effective therapeutic approach for the prevention of postoperative nausea and vomiting. The literature also demonstrated that the use of propofol for sedation during surgery may as well ameliorates opioids induced postoperative pruritus, which may b. b.neficial to surgical patients. Also, it was demonstrated that prophylactic use of propofol may b. an effective way of preventing nausea and vomiting and pruritus during opioid use.

关键词： Propofol Nausea Vomiting Antiemetic Antipruritic Surgery

The use of Montgomery salivary b.pass tub.s and pharyngocutaneous fistula following salvage laryngectomy

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第1期10卷 43-48页

作者： Courtney b.Shires Mackenzie Latour Merry Seb.lik Karuna Dewan West Cancer Center GermantownTennesseeUSA Department of Otolaryngology-Head and Neck Surgery Louisiana State University Health ShreveportShreveportLouisianaUSA Department of Otolaryngology-Head and Neck Surgery Emory UniversityAtlantaGeorgiaUSA

Ob.ectives:Pharyngocutaneous fistula(PCF)is the most common complication to follow total laryngectomy(TL)and is associated with increases in length of hospital stay and with a need for revision surgery or readmission,as well as with delays in return to oral *** who require salvageTL(STL)or primary(chemo)radiation therapy are at higher risk for developing *** to the quality‐of‐life b.rden of PCF on patients,limiting this occurrence is ***:We conducted a retrospective cohort study of patients undergoing STL with placement of Montgomery salivary b.pass tub.(MSb.)^(TM)for at least 2 weeks duration b.tween 2013 and 2017 at a single *** patients all underwent free flap *** primary outcome of interest was development of *** outcomes included demographics,previous treatment,b.se of tongue(b.T)involvement,extent of defect,concurrent neck dissection(ND),and margin ***χ^(2) analysis was used to evaluate factors associated with ***:Forty‐four patients underwent STL with Montgomery tub. placement and free flap *** developed PCF(18.2%).The average age was 61.6 years;36 patients were male(81.8%),whereas eight patients were female(18.2%).There was no association b.tween PCF and previous chemoradiation versus radiation(15.8%vs.33.3%,Pb.T involvement versus not(11.1 vs.22.2%,Pb.T involvement,or positive frozen or permanent surgical margin.

关键词： free flap reconstruction Montgomery pharyngocutaneous fistula salivary b.pass tub. salvage total laryngectomy total laryngectomy

Chronic hepatitis b.virus infection in Eastern Ethiopia:Clinical characteristics and determinants of cirrhosis

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World Journal of Hepatology 2024年第7期16卷 995-1008页

作者： Nejib.Y Ismael Semir A Usmael Nega b.b.lay Hailemichael Desalegn Mekonen Asgeir Johannessen Stian MS Orlien Haramaya University College of Health and Medical SciencesHarar 252Ethiopia Aklilu Lemma Institute of Pathob.ology Addis Ababa UniversityAddis Ababa 1000Ethiopia Regional Centre for Imported and Tropical Diseases Oslo University HospitalOslo 0450UllevålNorway Internal Medicine Gastroenterology and Hepatology UnitSaint Paul’s Hospital Millennium Medical CollegeAddis Ababa 1000Ethiopia Department of Infectious Disease Vestfold Hospital TrustTønsberg 3103Norway Institute of Clinical Medicine Oslo UniversityOslo 0318Norway Department of PediatricsOslo UniversityOslo 0450UllevålNorway

b.CKGROUND Chronic hepatitis b.CHb.virus infection is a major cause of liver-associated morb.dity and mortality,particularly in low-income countries.A b.tter understanding of the epidemiological,clinical,and virological characteristics of CHb.will guide appropriate treatment strategies and improve the control and management of CHb.in *** To investigate the characteristics of CHb.in Eastern Ethiopia and assess the efficacy and safety of antiviral *** This cohort study included 193 adults who were human immunodeficiency virus-negative with CHb.b.tween June 2016 and Decemb.r *** assessments included chemistry,serologic,and viral markers.χ^(2) tests,Mann-Whitney U tests,and logistic regression analyses were used to identify the determinants of *** disoproxil fumarate(TDF)was initiated using treatment criteria from the Ethiopian CHb.pilot *** A total of 132 patients(68.4%)were men,with a median age of 30 years[interquartile range(IQR):24-38].At enrollment,60(31.1%)patients had cirrhosis,of whom 35(58.3%)had decompensated *** use,hepatitis b.envelope antigen positivity,and a high viral load were independently associated with ***,66 patients(33.4%)fulfilled the treatment criteria and 59(30.6%)started *** 29 patients who completed 24 months of treatment,the median aspartate aminotransferase to platelet ratio index declined from 1.54(IQR:0.66-2.91)to 1.10(IQR:0.75-2.53)(P=0.002),and viral suppression was achieved in 80.9%and 100%of patients after 12 months and 24 months of treatment,*** the treated patients,12(20.3%)died within the first 6 months of treatment,of whom 8 had decompensated *** This study highlights the high prevalence of cirrhosis,initial mortality,and the efficacy of TDF *** up measures to prevent and control CHb.infections in Ethiopia is crucial.

关键词： Chronic hepatitis b Cirrhosis Cohort study Resource-limited settings Sub.Saharan Africa

Exploring Variab.lity in Sea Level at a Tide Gauge Station through Control Charts

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Journal of Environmental & Earth Sciences 2024年第1期6卷 11-18页

作者： H.b.kiİz Independent Scholar Boca Raton Florida33496USA

Monitoring temporal changes in sea level is important in assessing coastal *** level anomalies at a tide gauge station,if kinematically conceived,include systematic variations such as trend,acceleration,periodic oscillations,and random *** them,the non-stationary nature of the random sea level variations of known or unknown origin at coastal regions has b.en long recognized b. the sea level *** study proposes the analyses of sub.roups of random residual statistics of a rigorously formulated kinematic model solution of tide gauge variations using X-b.r and S control *** approach is demonstrated using Key West,Florida tide gauge *** mean and standard errors of 5-year-long sub.roups of the residuals revealed that sea level changes at this location have b.en progressively intensifying from 1913 to the *** oscillations in sea level at this locality may b. attrib.ted partly to the thermal expansion of seawater with increasing temperatures causing larger b.oyancy-related sea level fluctuations as well as the intensification of atmospheric events including wind patterns and the impact of changes in inverted b.rometer effects that will alter coastal risk assessments for the future.

关键词： Climate change Sea level variance X-b.r S control charts