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Aggravation of Cancer,Heart Diseases and Diabetes Subsequent to COVID-19 Lockdown via Mathematical Modeling

Computer Modeling in Engineering & Sciences 2024年第7期140卷 485-512页

作者： Fatma Nese Efil Sania Qureshi Nezihal Gokbulut Kamyar Hosseini evren hincal Amanullah Soomro Near East University Department of MathematicsNicosia99010North Cyprus Mehran University of Engineering and Technology Department of Basic Sciences and Related StudiesJamshoro76090Pakistan Department of Computer Science and Mathematics Lebanese American UniversityP.O.Box 13-5053BeirutLebanon Near East University Mathematics Research CenterNicosia99010North Cyprus

The global populationhas beenandwill continue to be severely impacted by theCOVID-19 *** primary objective of this research is to demonstrate the future impact of COVID-19 on those who suffer from other fatal conditions such as cancer,heart disease,and ***,using ordinary differential equations(ODEs),two mathematical models are developed to explain the association between COVID-19 and cancer and between COVID-19 and diabetes and heart *** that,we highlight the stability assessments that can be applied to these *** analysis is used to examine how changes in certain factors impact different aspects of *** sensitivity analysis showed that many people are still nervous about seeing a doctor due to COVID-19,which could result in a dramatic increase in the diagnosis of various ailments in the years to *** correlation between diabetes and cardiovascular illness is also illustrated *** effects of smoking and obesity are also found to be significant in disease *** fitting is also provided for interpreting the relationship between real data and the results of *** people,in particular,need tomonitor their health conditions closely and practice heart health *** with heart diseases should undergo regular checks so that they can protect themselves from diabetes and take some precautions including suitable *** main purpose of this study is to emphasize the importance of regular checks,to warn people about the effects of COVID-19(including avoiding healthcare centers and doctors because of the spread of infectious diseases)and to indicate the importance of family history of cancer,heart diseases and *** provision of the recommendations requires an increase in public consciousness.

关键词： COVID-19 mathematical modeling cancer diabetes heart diseases sensitivity analysis

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Dynamical Model to Optimize Student’s Academic Performance

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Computer Modeling in Engineering & Sciences 2022年第8期132卷 393-411页

作者： evren hincal Amna Hashim Alzadjali Department of Mathematics Near East UniversityMersin10 KKTCCyprus

Excellent student’s academic performance is the uppermost priority and goal of educators and *** dubious marginal rate between admission and graduation rates unveils the rates of dropout and withdrawal from *** improve the academic performance of students,we optimize the performance indices to the dynamics describing the academic performance in the form of nonlinear system *** established the uniform boundedness of the model and the existence and uniqueness *** independence and interdependence equilibria were found to be locally and globally asymptotically *** optimal control analysis was carried out,and lastly,numerical simulation was run to visualize the impact of the performance index in optimizing academic performance.

关键词： Academic performance optimal control uniform boundedness Pontryagin Maximum Principle(PMP) existence and uniqueness stability

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Reducing the Range of Cancer Risk on BI-RADS 4 Subcategories via Mathematical Modelling

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Computer Modeling in Engineering & Sciences 2022年第10期133卷 93-109页

作者： Nezihal Gokbulut evren hincal Hasan Besim Bilgen Kaymakamzade Near East University Faculty of Arts and SciencesNicosia99138North Cyprus Near East University Mathematics Research CenterNicosia99138North Cyprus Near East University Faculty of MedicineNicosia99138North Cyprus

Breast Imaging Reporting and Data System,also known as BI-RADS is a universal system used by radiologists and *** constructs a comprehensive language for the diagnosis of breast ***-RADS 4 category has a wide range of cancer risk since it is divided into 3 *** play an important role in the diagnosis and treatment of *** this study,data of 42 BI-RADS 4 patients taken fromthe Center for Breast Health,Near East University Hospital is *** the analysis,a mathematical model is constructed by dividing the population into 4 *** analysis is applied to the parameters with the desired outcome of a reduced range of cancer *** simulations of the parameters are *** results of the model have revealed that an increase in the lactation rate and earlymenopause have a negative correlation with the chance of being diagnosed with BI-RADS 4 whereas a positive correlation increase in age,the palpable mass,and family history is ***,the negative effects of smoking and late menopause on BI-RADS 4C diagnosis are vehemently ***,the model showed that the percentages of parameters play an important role in the diagnosis of BI-RADS 4 *** things considered,with the assistance of the most effective parameters,the range of cancer risks in BI-RADS 4 subcategories will decrease.

关键词： Mathematical model breast cancer BI-RADS 4 sensitivity analysis reducing cancer risk suspicious malignancy ordinary differential equations

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Sensitivity Analysis of COVID-19 in Mediterranean Island

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Computer Modeling in Engineering & Sciences 2022年第1期130卷 133-148页

作者： Ahmet Savasan Bilgen Kaymakamzade Nezihal Gokbulut evren hincal Elcin Yoldascan Near East University Faculty of Arts and SciencesNicosia99138North Cyprus Near East University Mathematics Research CenterNicosia99138North Cyprus Cyprus International University Faculty of MedicineNicosia99138North Cyprus

The aim of this study is to examine the progress of the worldwide pandemic *** authors,we have decided to analyze the situation of COVID-19 onMediterranean islandwith accurate *** this purpose,amathematical model is constructed and proposed by dividing the whole population into sensible and suitable *** study captures the dates February 01 till May 15,*** the control of the spread of disease,vaccination and infection rates are compared and *** calculations and comparison,MatLab software is *** of the data that are used are taken from the Ministry of *** effect of parameters is examined with sensitivity ***,with this analysis,values of parameters are ***,by using the constructed model,the effect of vaccine on infected individuals is analyzed *** a result,it is concluded that the studied part of the island is late for the control of the disease via *** can be explained by two main reasons;vaccinating the people that are not inmobilitymost of the time(aged people and people with chronic diseases)and getting the vaccine ***,the results showed that this rate and distribution of vaccines would not be enough to control the pandemic on the island.

关键词： COVID-19 vaccination mathematical model basic reproduction number island sensitivity analysis

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Lump,its interaction phenomena and conservation laws to a nonlinear mathematical model

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Journal of Ocean Engineering and Science 2022年第4期7卷 363-371页

作者： Abdullahi Yusuf Tukur Abdulkadir Sulaiman evren hincal Dumitru Baleanu Department of Computer Engineering Biruni UniversityIstanbulTurkey Department of Mathematics Near East University TRNCMersin 10Turkey Department of Mathematics Federal University DutseJigawaNigeria Department of Mathematics Cankaya UniversityAnkaraTurkey Institute of Space Sciences MagureleBucharestRomania Department of Medical Research China Medical University HospitalChina Medical UniversityTaichungTaiwan

We solve the Ostrovsky equation in the absence of the rotation effect using the Hirota bilinear method and symbolic *** unique interaction phenomena have been obtained between lump so-lution,breather wave,periodic wave,kink soliton,and two-wave *** the obtained solutions are validated by putting them into the original problem using the Wolfram Mathematica *** physical characteristics of the solutions have been visually represented to shed additional light on the acquired ***,using the novel conservation theory,the conserved vectors of the governing equation have been *** discovered results are helpful in understanding particular physical phenomena in fluid dynamics as well as the dynamics of nonlinear higher dimensional wave fields in computational physics and ocean engineering and related disciplines.

关键词： Lump solution New interaction phenomena Breather waves Symmetry analysis Conservation laws

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Two-wave,breather wave solutions and stability analysis to the(2+1)-dimensional Ito equation

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Journal of Ocean Engineering and Science 2022年第5期7卷 467-474页

作者： Tukur Abdulkadir Sulaiman Abdullahi Yusuf evren hincal Dumitru Baleanu Mustafa Bayram Department of Computer Engineering Biruni UniversityIstanbulTurkey Department of Mathematics Federal University DutseJigawaNigeria Department of Mathematics Near East University TRNCMersin 10Turkey Department of Mathematics Cankaya UniversityAnkaraTurkey Institute of Space Sciences MagureleBucharestRomania Department of Medical Research China Medical University HospitalChina Medical UniversityTaichungTaiwan

The current study employs the novel Hirota bilinear scheme to investigate the nonlinear ***,we acquire some two-wave and breather wave solutions to the governing *** are pulsating localized structures that have been used to mimic extreme waves in a variety of nonlinear dispersive media with a narrow banded starting *** recent investigations,on the other hand,imply that breathers can survive in more complex habitats,such as random seas,despite the attributed physical *** authenticity and genuineness of all the acquired solutions agreed with the original *** order to shed more light on these novel solutions,we plot the 3-dimensional and contour graphs to the reported solutions with some suitable *** governing model is also stable because of the idea of linear *** study’s findings may help explain the physics behind some of the challenges facing ocean engineers.

关键词： Governing model Scheme Two-waves and breather wave solution Stability analysis Hirota bilinear

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A Binomial Model Approach: Comparing the R0 Values of SARS-CoV-2 rRT-PCR Data from Laboratories across Northern Cyprus

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Computer Modeling in Engineering & Sciences 2021年第8期128卷 717-729页

作者： Nazife Sultanoglu Nezihal Gokbulut Tamer Sanlidag evren hincal Bilgen Kaymakamzade Murat Sayan Department of Medical Microbiology and Clinical Microbiology Faculty of MedicineNear East UniversityNicosia99138Cyprus DESAM Research Institute Near East UniversityNicosia99138Cyprus Department of Mathematics Near East UniversityNicosia99138Cyprus Faculty of Medicine Kocaeli UniversityClinical LaboratoryPCR UnitKocaeli41001Turkey

Northern Cyprus has implemented relatively strict measures in the battle against the outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The measures were introduced at the beginning of the COVID-19pandemic, in order to prevent the spread of the disease. One of these measures was the use of two separate realtime reverse transcription polymerase chain reaction (rRT-PCR) tests for SARS-CoV-2 referred to as the doublescreening procedure, which was adopted following the re-opening of the sea, air and land borders for passengersafter the first lockdown. The rRT-PCR double screening procedure involved reporting a negative rRT-PCR testwhich was carried in 72 to 120 h before departure whilst presenting no known symptoms of the COVID-19and performing a second rRT-PCR test at the point of arrival. This study compares the results of SARS-CoV-2rRT-PCR tests performed on incoming flight passengers from the 1st July to 9th of September 2020 to NorthernCyprus. The rRT-PCR test results collected by the Near East University (NEU) DESAM COVID-19 laboratory werecompared with the rRT-PCR test results collected by the Ministry of Health and/or private COVID-19 laboratoriesin Northern Cyprus. This comparative study was conducted using binomial distribution. In addition, by applyingthe Susceptible-Exposed-Infected-Removed (SEIR) model to Northern Cyprus, overall basic reproduction number(R0) value of the COVID-19 was analysed for the same time period to act as a threshold for this *** both the statistical and SEIR mathematical model, R0 was calculated. It was assumed that, the more similarthe R0 results of NEU DESAM COVID-19 laboratory and other laboratories were with the overall R0 value ofNorthern Cyprus, the more reliable the results would be. We calculated that the median R0 values of the NEUDESAM COVID-19 laboratory and other laboratories performing the SARS-CoV-2 rRT-PCR on air passengersduring the studied period to be 0.96 and 1.29, respectively, com

关键词： COVID-19 tests performed basic reproduction number statistical analysis comparison

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Mathematical modeling and analysis of schistosomiasis transmission dynamics

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International Journal of Modeling, Simulation, and Scientific Computing 2021年第4期12卷 58-76页

作者： Umar T.Mustapha Salihu S.Musa Muhammad A.Lawan Aliyu Abba evren hincal Musa D.Mohammed Bashir D.Garba Rabiu B.Yunus Shehu A.Adamu Daihai He Department of Mathematics Near East University TRNC Mersin 10 Turkey Department of Mathematics Federal University Dutse Nigeria Department of Applied Mathematics The Hong Kong Polytechnic University Hong Kong Department of Mathematics Kano University of Science and Technology Wudil Nigeria Department of Statistics Jigawa State Polytechnic DutseNigeria Department of Computer Engineering Institute of Continuing Education Kano University of Science and Technology Wudil Nigeria Department of Mathematics and Statistics Kano State Polytechnic Nigeria

Schistosomiasis is a parasitic disease from the family of Schistosomatidae and genus Schistosoma,which is caused by blood *** disease is endemic in many countries and still a serious threat to global public health and *** this paper,a new deterministic model is designed and analyzed qualitatively to explore the dynamics of schistosomiasis transmission in human,cattle and snail *** from our mathematical analysis show that the model has a disease-free equilibrium(DFE)which is locally asymptotically stable(LAS)whenever a particular epidemiological threshold quantity,also known as basic reproduction number(R0)is less than *** analysis shows that the model has a unique endemic equilibrium(EE)which is globally asymptotically stable whenever R0>1 and unstable when R0<***,we adopt partial rank correlation coefficient for sensitivity analysis to reveal the most important parameters for effective control and mitigation of schistosomiasis disease in a ***,we obtain some numerical results by simulating the entire dynamics of the model,which show that the infections in the compartments of each population decrease with respect to *** further indicates that avoiding contact with infected human,cattle or infested water is vital to prevent the spread of schistosomiasis disease infection.

关键词： Schistosomiasis disease basic reproduction number stability analysis sensitivity analysis

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