Advanced ellipse overlap computation based on segment area of circles by Minhye Kim, Yongkuk Kim, Giphil Cho

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Competing Risks in Accelerated Life Testing: A Study on Step-Stress Models with Tampered Random Variables by Hanan Haj Ahmad, Ehab M. Almetwally, Dina A. Ramadan

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Spectral Criteria for Solvability of Boundary Value Problems and Positivity of Solutions of Time-Fractional Differential Equations by Valentin Keyantuo, Carlos Lizama, Mahamadi Warma

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A Semisupervised Cascade Classification Algorithm by Stamatis Karlos, Nikos Fazakis, Sotiris Kotsiantis, Kyriakos Sgarbas

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Formation of STEM Competencies of Future Teachers: Kazakhstani Experience by Khadisha Abdrakhmanova, Roza Kadirbayeva, Kuralay Kudaibergenova, Serik Zharmukhanbetov, Gulira Nurmukhanbetova

“…This article examines Kazakhstan’s approach to developing science, technology, engineering, and mathematics (STEM) competencies in future teachers by analyzing educational programs (EPs) and key aspects of STEM education implementation. …”
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Dynamical System Analysis of Interacting Hessence Dark Energy in f(T) Gravity by Jyotirmay Das Mandal, Ujjal Debnath

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Combining non-Monotone trust rregion method with a new adaptive radius for unconstrained optimization problems by Seyed Hamzeh Mirzaei, Ali Ashrafi

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In vitro shoot induction from petiole explants of tembesu (Fagraea fragrans Roxb) using 6-benzylaminopurine by Mayta Novaliza Isda, Riche Afrilla

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Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry by Daba Meshesha Gusu, M. Vijaya Santhi

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Improving online learning through student stress evaluation by Elty Sarvia, Christina Wirawan, Meilena Kristianti, Zukhruf Ramadhani

“…There was also a difference between mathematics and theory courses. With this research, it is necessary to pay attention to learning methods, materials, etc. need to be designed to reduce student stress and improve student performance.…”
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Robot Path Planning Using Improved Ant Colony Algorithm in the Environment of Internet of Things by Hongliu Huang, Guo Tan, Linli Jiang

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Nonlinear Programming to Determine Best Weighted Coefficient of Balanced LINEX Loss Function Based on Lower Record Values by Fuad S. Al-Duais, Mohammed Alhagyan

“…This encouraged us to look for mathematical method that gives and guarantees the best values of the weighted coefficients. …”
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Model of Close Packing for Determination of the Major Characteristics of the Liquid Dispersions Components by Kiril Hristov Kolikov, Dimo Donchev Hristozov, Radka Paskova Koleva, Georgi Aleksandrov Krustev

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Efficient Dynamic Replication Algorithm Using Agent for Data Grid by Priyanka Vashisht, Rajesh Kumar, Anju Sharma

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Further Results on Resistance Distance and Kirchhoff Index in Electric Networks by Qun Liu, Jia-Bao Liu, Jinde Cao

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On the Derivation of a Closed-Form Expression for the Solutions of a Subclass of Generalized Abel Differential Equations by Panayotis E. Nastou, Paul Spirakis, Yannis C. Stamatiou, Apostolos Tsiakalos

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Oscillation Criteria for Second-Order Delay, Difference, and Functional Equations by L. K. Kikina, I. P. Stavroulakis

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Simple Model for Simulating Characteristics of River Flow Velocity in Large Scale by Husin Alatas, Dyo D. Prayuda, Achmad Syafiuddin, May Parlindungan, Nurjaman O. Suhendra, Hidayat Pawitan

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Constrained Multiobjective Equilibrium Optimizer Algorithm for Solving Combined Economic Emission Dispatch Problem by M. A. El-Shorbagy, A. A. Mousa

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Bifurcation of a Fractional-Order Delayed Malware Propagation Model in Social Networks by Changjin Xu, Maoxin Liao, Peiluan Li

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