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Computational solution of an acid-mediated tumor-growth radial model under logistic growth regimes for normal and cancer cells

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International Journal of Biomathematics 2023年第3期16卷 45-62页

作者： Farhan Khan mudassar Abbas Jorge E.macias-Diaz muhammad Bilal Khan safar m.alghamdi Department of mathematics and Computer Sciences University of Palermo 90133 PalermoItaly Department of mathematics and Applications “R.Caccioppoli”University of Naples Federico iiVia Cintia 80126NaplesItaly Department of mathematics School of Digital Technologies Tallinn University10120 TallinnEstonia Departamento de Matematicas y Fisica Universidad Autonoma de Aguascalientes AguascalientesAgs.20131Merico Department of mathematics COmSATS University Islamabad Islambad44000 Pakistan Department of mathematics and Statistics College of Science Taif University Taif 21944Saudi Arabia

Tumor invasion follows a complex mechanism which involves cell migration and *** study the processes in which primary and secondary metastases invade and damage the normal cells,mathematical models are often extremely *** this paper,we present a mathematical model of acid-mediated tumor growth consisting of radially symmetric reaction-diffusion *** assumption on the radial symmetry of the solutions is imposed here in view that tumors present spherical symmetry at the microscopic ***,we consider various empirical mechanisms which describe the propagation of tumors by considering cancer cells,normal cells,and the concentration of H+*** other assumptions,we suppose that these components follow logistictype growth ***,this is an important difference with respect to various other mathematical models for tumor growth available in the ***,we also add competition terms of normal and tumor cells *** carry out a balancing study of the equations of the model,and a numerical model is proposed to produce *** practical remarks derived from our assumptions are provided in the discussion of our simulations.

关键词： Cancer growth model radially symmetric system acid-mediated tumor growth computer simulations

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Chemically mediated Interactions between Grapevine, Aphid, Ladybird, and Ant in the Context of Insect Chemical Ecology

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Phyton-International Journal of Experimental Botany 2024年第7期93卷 1523-1542页

作者： Taghreed Alsufyani Noura J.Alotaibi Nour Houda m’sakni mona A.Almalki Eman m.alghamdi Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Biology College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Chemistry Department Faculty of ScienceKing AbdulAziz UniversityP.O.Box 80200Jeddah21589Saudi Arabia

This study simpliﬁes the complex relationship among grapevine plants,aphids,ladybirds,and ants,which is essential for effective pest management and ecological *** study investigated the impact of aphid attacks and the presence of ants and ladybirds on the volatile compounds proﬁle released into the chemosphere of the community consisting of the common vine Vitis vinifera,the aphid Aphis illinoisensis,the ladybird Cocci-nella undecimpunctata-and the ant Tapinoma *** study aims to analyze the volatile compounds emitted by the grapevine and surrounding insects in response to these intricate *** extraction of volatile organic compounds(VOCs)was carried out using closed-loop stripping(CLS)and then analyzed via gas chromatography-mass spectrometry(GC-mS)and principles coordinated analysis(PCA)was *** grapevine was exposed to different types and order of treatments,including non-infested,aphid-infested,aphid-infested with ant,aphid-infested with ladybird,and various combinations of ant and *** the aphid attack,the outcomes uncovered massive alterations in the volatile compound proﬁ*** grapevine displayed distinct emissions of germacrene D,an alcohol,and an alkene compared to non-infested *** characteristic VOC proﬁle was the share of infested grapes in the presence of ants,with benzene derivatives and sesquiterpenes dominating the *** coexistence of ladybirds with ants and aphids resulted in a dif-ferent volatile proﬁle characterized by elevated levels of aldehydes,ketones,α-farnesene,and its hydroxy *** was concluded that the emission of VOCs into the chemosphere of the grapevine communities varied qualitatively and quantitatively depending on the level of the relationship complexity within each community in response to the infestation of grapevines by aphids,the presence of ladybirds as natural predators,and the presence of ant as *** grapevine’s status-dependent compounds

关键词： Aphids Aphis illinoisensis volatile organic compounds chemosphere pest management gas chromatography-mass spectrometry closed-loop stripping

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magnetohydrodynamic Stagnation Point Flow of a maxwell Nanofluid with Variable Conductivity

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Communications in Theoretical Physics 2019年第12期71卷 1493-1500页

作者： m.Irfan m.Khan W.A.Khan m.alghamdi Department of mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan School of mathematics and Statistics Beijing Institute of TechnologyBeijing 100081China Department of mathematics Faculty of ScienceKing Khalid UniversityAbha 61413Kingdom of Saudi Arabia

This article reports the simultaneous properties of variable conductivity and chemical reaction in stagnation point flow of magneto maxwell *** Buongiorno’s theory has been established to picture the inducement of Brownian and thermophrotic diffusions ***,the aspect of heat sink/source is *** homotopic analysis method(HAm)has been worked out for the solution of nonlinear *** behavior of inferential variables on the velocity,temperature,concentration and local Nusselt number for maxwell nanofluid are sketched and *** attained outcomes specify that both the temperature and concentration of maxwell fluid display analogous behavior,while the depiction of Brownian motion is quite conflicting on both temperature and concentration *** is further noted that the influence of variable thermal conductivity on temperature field is similar to that of Brownian motion ***,for the confirmation of our study comparison tables are reported.

关键词： maxwell nanofluid stagnation point flow magnetohydrodynamic(mHD) variable conductivity chemical reaction

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Use of biopolymers in wastewater treatment:A brief review of current trends and prospects

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Chinese Journal of Chemical Engineering 2023年第12期64卷 292-320页

作者： Ahmed m.Elgarahy m.G.Eloffy Eric Guibal Huda m.alghamdi Khalid Z.Elwakeel Egyptian Propylene and Polypropylene Company(EPPC) Port-SaidEgypt Environmental Chemistry Division Environmental Science DepartmentFaculty of SciencePort Said UniversityPort SaidEgypt National Institute of Oceanography and Fisheries(NIOF) CairoEgypt Polymers Composites and Hybrids(PCH) C2MAIMT Mines AlesAlèsFrance University of Jeddah College of ScienceDepartment of ChemistryJeddahSaudi Arabia

Indeed,polymeric materials have thrived in worldwide sectors over the last five decades due to their versatility and durability,to the point that we can no longer envisage a product that does not contain ***,many synthetic polymers that have been produced are mostly sourced from petroleum and coal as raw materials,making them environmentally incompatible because they cannot be integrated with what is a natural recycling *** of the most important aspects of the transition to a circular bioeconomy(CBE)is the provision of more sustainable strategies for resource and waste *** the environmental consequences associated with petroleum-based polymers(PBPs),natural biopolymers,originating from biomass,can be conceived as a promising solution to gradually replace the PBPs,and address,and resolve the potential challenges and prevailing research gaps in the *** biopolymers have significant advantages over PBPs in terms of low-cost/zero-cost precursors,environmental friendliness,and *** present review dissects the sources,synthesis pathways,structures,characterization,and employment of biopolymers and their composites in water and wastew-ater treatment applications via different ***,the CBE model framework proposes potential approaches to applying CBE principles in the wastewater management sector,with a heavy emphasis on not only technology but also organizational and societal *** sum up,the reliance on biopolymers can be considered a crucial tool for assessing the global progress toward CBE,as well as future environmental management and planning.

关键词： Biopolymers Biomass Bioseparation Coagulation Photocatalysis Sustainability

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Seeker Optimization with Deep Learning Enabled Sentiment Analysis on Social media;

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Computers, materials & Continua 2022年第12期73卷 5985-5999页

作者： Hanan m.alghamdi Saadia H.A.Hamza Aisha m.mashraqi Sayed Abdel-Khalek Department of Computer Science College of Computing Al-QunfidhahUmm Al-Qura UniversitySaudi Arabia Department of Computer Science College of Science and HumanitiesSlayelPrince Sattam Bin AbdulAziz UniversitySaudi Arabia Department of Computer Science College of Computer Science and Information SystemsNajran UnivesityNajran61441Saudi Arabia Department of mathematics College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of mathematics Faculty of ScienceSohag UniversitySohagEgypt

World Wide Web enables its users to connect among themselves through social networks,forums,review sites,and blogs and these interactions produce huge volumes of data in various forms such as emotions,sentiments,views,*** Analysis(SA)is a text organization approach that is applied to categorize the sentiments under distinct classes such as positive,negative,and ***,Sentiment Analysis is challenging to perform due to inadequate volume of labeled data in the domain of Natural Language Processing(NLP).Social networks produce interconnected and huge data which brings complexity in terms of expanding SA to an extensive array of ***,there is a need exists to develop a proper technique for both identification and classification of sentiments in social *** get rid of these problems,Deep Learning methods and sentiment analysis are consolidated since the former is highly efficient owing to its automatic learning *** current study introduces a Seeker Optimization Algorithm with Deep Learning enabled SA and Classification(SOADL-SAC)for social *** presented SOADL-SAC model involves the proper identification and classification of sentiments in social *** order to attain this,SOADL-SAC model carries out data preprocessing to clean the input *** addition,Glove technique is applied to generate the feature ***,Self-Head multi-Attention based Gated Recurrent Unit(SHmA-GRU)model is exploited to recognize and classify the ***,Seeker Optimization Algorithm(SOA)is applied to fine-tune the hyperparameters involved in SHmA-GRU model which in turn enhances the classifier *** order to validate the enhanced outcomes of the proposed SOADL-SAC model,various experiments were conducted on benchmark *** experimental results inferred the better performance of SOADLSAC model over recent state-of-the-art approaches.

关键词： Sentiment analysis classification of sentiment social media seeker optimization algorithm glove embedding natural language processing

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Topological Evaluation of Certain Computer Networks by Contraharmonic-Quadratic Indices

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Computers, materials & Continua 2023年第2期74卷 3795-3810页

作者： Ahmed m.alghamdi Khalid Hamid muhammad Waseem Iqbal m.Usman Ashraf Abdullah Alshahrani Adel Alshamrani Department of Software Engineering College of Computer Science and EngineeringUniversity of JeddahJeddah21493Saudi Arabia Department of Computer Science Superior UniversityLahore54000Pakistan Department of Software Engineering Superior UniversityLahore54000Pakistan Department of Computer Science GC Women UniversitySialkot53310Pakistan Department of Computer Science and Artificial Intelligence College of Computer Science and EngineeringUniversity of JeddahJeddah21493Saudi Arabia Department of Cybersecurity College of Computer Science and Engineering at University of JeddahJeddah21493Saudi Arabia

In various fields,different networks are used,most of the time not of a single kind;but rather a mix of at least two *** kinds of networks are called bridge networks which are utilized in interconnection networks of PC,portable networks,spine of internet,networks engaged with advanced mechanics,power generation interconnection,bio-informatics and substance intensify *** number that can be entirely calculated by a graph is called graph *** mathematical graph invariants have been portrayed and utilized for connection investigation during the latest twenty ***,no trustworthy evaluation has been embraced to pick,how much these invariants are associated with a network graph or subatomic *** this paper,it will discuss three unmistakable varieties of bridge networks with an incredible capacity of assumption in the field of computer science,chemistry,physics,drug industry,informatics and arithmetic in setting with physical and manufactured developments and networks,since Contraharmonic-quadratic invariants(CQIs)are recently presented and have different figure qualities for different varieties of bridge graphs or *** study settled the geography of bridge graphs/networks of three novel sorts with two kinds of CQI and Quadratic-Contraharmonic Indices(QCIs).The deduced results can be used for the modeling of the above-mentioned networks.

关键词： Bridge networks invariants Quadratic-Contraharmonic Indices maple network graph molecular graph

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Automated Grading of Breast Cancer Histopathology Images Using multilayered Autoencoder

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Computers, materials & Continua 2022年第5期71卷 3407-3423页

作者： Shakra mehak m.Usman Ashraf Rabia Zafar Ahmed m.alghamdi Ahmed S.Alfakeeh Fawaz Alassery Habib Hamam muhammad Shafiq Knowledge Unit of System and Technology University of Management&TechnologySialkot Campus51310Pakistan Department of Computer Science University of Management and TechnologySialkot Campus51310Pakistan Faculty of Computing and Technology University of Engineering&TechnologyNarowal51610Pakistan College of Computer Science and Engineering University of Jeddah21493Saudi Arabia Faculty of Computing and Information Technology King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaifSaudi Arabia Faculty of Engineering Moncton UniversityNBE1A3E9Canada Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

Breast cancer(BC)is the most widely recognized cancer in women *** 2018,627,000 women had died of breast cancer(World Health Organization Report 2018).To diagnose BC,the evaluation of tumours is achieved by analysis of histological *** present,the Nottingham Bloom Richardson framework is the least expensive approach used to grade BC *** contemplate three elements,*** count,*** formation,and *** atypia,which is a laborious process that witness’s variations in expert’s ***,some algorithms have been proposed for the detection of mitotic cells,but nuclear atypia in breast cancer histopathology has not received much *** atypia analysis is performed not only to grade BC but also to provide critical information in the discrimination of normal breast,non-invasive breast(usual ductal hyperplasia,atypical ductal hyperplasia)and pre-invasive breast(ductal carcinoma in situ)and invasive breast *** proposed a deep-stacked multi-layer autoencoder ensemble with a softmax layer for the feature extraction and classification *** classification results show the value of the multilayer autoencoder model in the evaluation of nuclear *** proposed method has indicated promising results,making them more fit in breast cancer grading.

关键词： Breast cancer nuclear atypia autoencoder

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Nanomaterial-assisted wearable glucose biosensors for noninvasive real-time monitoring:Pioneering point-of-care and beyond

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Nano materials Science 2024年第3期6卷 263-283页

作者： moein safarkhani Abdullah Aldhaher Golnaz Heidari Ehsan Nazarzadeh Zare majid Ebrahimi Warkiani Omid Akhavan YunSuk Huh Navid Rabiee NanoBio High-Tech materials Research Center Department of Biological Sciences and BioengineeringInha UniversityIncheon22212Republic of Korea Department of Chemistry Sharif University of TechnologyTehranIran School of Natural Sciences Massey UniversityPrivate Bag 11222Palmerston North4410New Zealand School of Chemistry Damghan UniversityDamghan36716-45667Iran School of Biomedical Engineering University of Technology SydneySydneyNSW2007Australia Department of Physics Sharif University of TechnologyP.O.Box 11155-9161TehranIran Centre for molecular medicine and Innovative Therapeutics Murdoch UniversityPerthWA 6150Australia School of Engineering Macquarie UniversitySydneyNew South Wales2109Australia

This review explores glucose monitoring and management strategies,emphasizing the need for reliable and userfriendly wearable sensors that are the next generation of sensors for continuous glucose *** addition,examines key strategies for designing glucose sensors that are multi-functional,reliable,and cost-effective in a variety of *** unique features of effective diabetes management technology are highlighted,with a focus on using nano/biosensor devices that can quickly and accurately detect glucose levels in the blood,improving patient treatment and control of potential diabetes-related *** potential of next-generation wearable and touch-sensitive nano biomedical sensor engineering designs for providing full control in assessing implantable,continuous glucose monitoring is also *** challenges of standardizing drug or insulin delivery doses,low-cost,real-time detection of increased blood sugar levels in diabetics,and early digital health awareness controls for the adverse effects of injectable medication are identified as unmet ***,the market for biosensors is expected to expand significantly due to the rising need for portable diagnostic equipment and an ever-increasing diabetic *** paper concludes by emphasizing the need for further research and development of glucose biosensors to meet the stringent requirements for sensitivity and specificity imposed by clinical diagnostics while being cost-effective,stable,and durable.

关键词： Glucose sensor Biosensor Wearable devices Noninvasive Real-time monitoring

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On the Application of the Adomian’s Decomposition method to a Generalized Thermoelastic Infinite medium with a Spherical Cavity in the Framework Three Different models

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Fluid Dynamics & materials Processing 2019年第5期15卷 597-611页

作者： Najat A.alghamdi Hamdy m.Youssef mathematics Department Faculty of ScienceUmm Al-Qura UniversityMakkahSaudi Arabia mathematics Department Faculty of EducationAlexandria UniversityAlexandriaEgypt mathematics Department Faculty of EngineeringUmm Al-Qura UniversityMakkahSaudi Arabia

A mathematical model is elaborated for a thermoelastic infinite body with a spherical cavity.A generalized set of governing equations is formulated in the context of three different models of thermoelasticity:the Biot model,also known as“coupled thermoelasticity”model;the Lord-Shulman model,also referred to as“generalized thermoelasticity with one-relaxation time”approach;and the Green-Lindsay model,also called“generalized thermoelasticity with two-relaxation times”*** Adomian’s decomposition method is used to solve the related mathematical *** bounding plane of the cavity is subjected to harmonic thermal loading with zero heat flux and *** results for the temperature,radial stress,strain,and displacement are represented *** is shown that the angular thermal load and the relaxation times have significant effects on all the studied fields.

关键词： Adomian’s decomposition method generalized thermoelasticity relaxation time iteration method

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Upshot of ohmically dissipated Darcy-Forchheimer slip flow of magnetohydrodynamic Sutterby fluid over radiating linearly stretched surface in view of Cash and Carp method

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Applied mathematics and mechanics(English Edition) 2019年第6期40卷 861-876页

作者： S. BILAL m. SOHAIL R. NAZ m. Y. mALIK m. alghamdi Department of mathematics Air UniversityIslamabad 44000Pakistan Department of Applied mathematics and Statistics Institute of Space TechnologyIslamabad 44000Pakistan Department of mathematics College of SciencesKing Khalid UniversityAbha 61413Saudi Arabia

The present work concerns the momentum and heat transmission of the electro-magnetohydrodynamic (E-mHD) boundary layer Darcy-Forchheimer flow of a Sutterby fluid over a linear stretching sheet with slip. The nonlinear equations for the proposed model are analyzed numerically. Suitable techniques are used to transform the coupled nonlinear partial differential equations (PDEs) conforming to the forced balance law, energy, and concentration equations into a nonlinear coupled system of ordinary differential equations (ODEs). Numerical solutions of the transformed nonlinear system are obtained using a shooting method, improved by the Cash and Carp coefficients. The influence of important physical variables on the velocity, the temperature, the heat flux coefficient, and the skin-friction coefficient is verified and analyzed through graphs and tables. From the comprehensive analysis of the present work, it is concluded that by intensifying the magnitude of the Hartmann number, the momentum distribution decays, whereas the thermal profile of fluid increases. Furthermore, it is also shown that by aug- menting the values of the momentum slip parameter, the velocity profile diminishes. It is found that the Sutterby fluid model shows shear thickening and shear thinning behaviors. The momentum profile shows that the magnitude of velocity for the shear thickening case is dominant as compared with the shear thinning case. It is also demonstrated that the Sutterby fluid model reduces to a Newtonian model by fixing the fluid parameter to zero. In view of the limiting case, it is established that the surface drag in the case of the Sutterby model shows a trifling pattern as compared with the classical case.

关键词： Sutterby fluid thermal and momentum slip shooting method ohmic dissipation Darcy-Forchheimer law Cash and Carp method

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