• Modelling Spatial and Non-Linear Trends in Climate Data Using Gaussian Process Regression and Generalized Additive Model 

  Marwa Hassan Chacha, Joseph Ouno, Boniface Kwach,Cornelius Nyakundi (2025)

  Accurate modeling of climate variability is critical for understanding the impacts of climate change and supporting data-driven adaptation strategies. Traditional parametric models, while widely used, often struggle to ...
• A Hybrid GPR-GAM Model for Enhanced Spatio-Temporal Climate Prediction in Kenya 

  Marwa Hassan Chacha, Joseph Ouno, Boniface Kwach, Cornelius Nyakundi (2025)

  Climate change presents growing challenges in regions like Kenya, where diverse terrain and climatic variability complicate accurate environmental forecasting. Traditional climate models often fall short in capturing ...
• Dynamics in Fleet Management with Competition for Passengers at Optimal Levels 

  Kiprotich Wilberforce, Makwata Harun, Muthiga N Samuel (2025-08)

  We present a dynamic model describing the time evolution of travelers number, fleet units effort and fleet fare price. The fare price is fixed by the gap between demand and supply and is assumed to evolve on a fast ...
• Transitivity Action of the Cartesian Product of the Alternating Group Acting on a Cartesian Product of Ordered Sets of Triples 

  Maraka K. Moses Musundi W. Sammy, Lewis N. Nyaga (2021-12)

  In this paper, we investigate some transitivity action properties of the cartesian product of the alternating group 𝐴𝑛 (𝑛 ≥ 5) acting on a cartesian product of ordered sets of triples using the Orbit-Stabilizer ...
• Phytochemical-Assisted Synthesis of Silver Nanoparticles Using Eucalyptus Leaf Extract: Structural Characterization and Antimicrobial Evaluation 

  Grace K. Abere, Wesley N. Omwoyo, Aloys M. Osano, James J. Owuor, Evans Suter (2025)

  The search for safer and environmentally friendly nanoparticle-synthesis methods is becoming more prominent in sustainable nanotechnology. In this study, phytochemical-assisted green synthesis of silver nanoparticles ...
• Primitivity Action of the Cartesian Product of an Alternating Group Acting on a Cartesian Product of Ordered Sets of Triples 

  Moses K. Maraka, Sammy W. Musundi, Lewis N. Nyaga (2022)

  In this paper, we investigate the primitivity action properties of the cartesian product of an alternating group 𝐴 acting on a cartesian product of ordered sets of triples using the definition primitivity 𝑛 (𝑛≥5) and ...
• Ranks and Subdegrees of the Action of the Product of Three Alternating Groups on the Cartesian Product of Three Sets of Ordered 𝜸 −Tuples 

  Moses K. Maraka, John W. Matuya, Edward M. Njuguna, Lewis N. Nyaga (2025-04)

  In this paper, the ranks and subdegrees of the action of the product of three alternating groups, 𝐴𝑛1 × 𝐴𝑛2 × 𝐴𝑛3 , acting on the Cartesian product of three sets of ordered 𝛾 –tuples, 𝑃1 [𝛾] × 𝑃2 [𝛾] × ...
• Ranks and Subdegrees of the Action of the Product of Four Alternating Groups on the Cartesian Product of Four Sets of Ordered Pairs 

  Moses Khakame Maraka (2025-06)

  The rank and subdegrees of the action of 𝐴𝑛 × 𝐴𝑛 × 𝐴𝑛 × 𝐴𝑛 acting on 𝑊[2] × 𝑋 [2] × 𝑌 [2] × 𝑍 [2] are determined in this paper. Using combinatorics and mathematical induction, the rank of 𝐴𝑛 × 𝐴𝑛 × ...
• The Imprimitivity Action of the Product of Finite Alternating Groups on Cartesian Product of Ordered 𝜸 −Tuples of Finite Sets 

  Moses K. Maraka, John W. Matuya , Edward M. Njuguna, Lewis N. Nyaga (2025-09)

  A group 𝐺 acts primitively on a set 𝑃 if the only 𝐺 -invariant partitions are trivial. This paper explores the primitivity of the product action of finite alternating groups 𝐴𝑛1 × 𝐴𝑛2 × … × 𝐴𝑛𝑚 on the ...
• Quality-by-design Optimization and Characterization of Artemether± Lumefantrine±Paracetamol Co-loaded Solid Lipid Nanoparticles for Synchronized and Sustained Drug Release 

  Alphonce Manyoni , John K. Muchonjo , Mpho P. Ngoepe , Samuel Cheruiyot , James Owuor, Evans Suter, Simon Muigai and Wesley Omwoyo (2025-08)

  Malaria treatment continues to face significant challenges due to emerging drug resistance and pharmacokinetic heterogeneity among artemisinin-based combination therapies. This study reports the development of a triple-drug ...
• Transitivity of the Product Action of Finite Alternating Groups on Cartesian Product of Finite Ordered Sets 0f γTuples 

  MOSES K. MARAKA , JOHN W. MATUYA , EDWARD M. NJUGUNA, LEWIS N. NYAGA (2024-07)

  In this paper, we determine the transitivity of the product action of finite alternating groups on the Cartesian product of finite ordered sets of 𝜸- tuples. Transitivity action has been determined using the ...
• Predicting Hass Avocado Maturity with NIR Spectroscopy for Non-invasive Dry Matter Estimation in Hass Avocados 

  Mercy Amondi, Jared Ombiro, Zephania Birech,Duke Oeba (2024-10)

  Aims: To develop a rapid, non-invasive method for predicting Hass avocado maturity using nearinfrared diffuse reflectance spectroscopy (NIR-DRS) combined with machine learning algorithms, and to identify the optimal NIR ...
• Quality-by-design Optimization and Characterization of Artemether± Lumefantrine±Paracetamol Co-loaded Solid Lipid Nanoparticles for Synchronized and Sustained Drug Release 

  Alphonce Manyoni, John K. Muchonjo, Mpho P. Ngoepe, Samuel Cheruiyot , James Owuor, Evans Suter, Simon Muigai and Wesley Omwoyo (2025-11)

  Malaria treatment continues to face significant challenges due to emerging drug resistance and pharmacokinetic heterogeneity among artemisinin-based combination therapies. This study reports the development of a triple-drug ...
• On Bishop’s Property of n-Square Metrically Equivalent Operators 

  Gichunge Christopher M, John Matuya, Edward Njuguna and Victor Wanjala (2025-08)

  We introduce a new operator equivalence relation termed as n-Square Metrically Equivalent Operators. Given a positive integer n, two bounded linear operators A and B are said to be square metrically equivalent operators ...
• On (n,m)-Square Metrically Equivalent Operators 

  Gichunge Christopher M, John Matuya, Edward Njuguna and Victor Wanjala (2025-09)

  We introduce and study a new equivalence relation among bounded linear operators, termed (n,m)-Square Metrically Equivalent Operators. Given positive integers n and m, two bounded linear operators A and B are said to ...
• Analyzing Dunford Property for Operators Satisfying Sr 2TqSr 2 = S2r 

  Wanjala Victor, Beatrice Adhiambo Obiero (2025)

  In this study, we introduce a new class of operators defined by the properties Sr 2 TqSr 2 =S2r and Tr 2 = T2r, for integers r > q ≥ 0. Our main objective is to investigate the Dunford property, commonly referred ...
• Characterization of Group of Invertible Elements of Six Index Zero Completely Primary Finite Rings of Characteristic p 

  Nicholus B. Waweru, Hezron S. Were, Edward M. Njuguna, Matuya John (2025-09)

  The study of finite extension of Galois rings in the recent past have given rise to commutative completely primary finite rings that have attracted much attention as they have yielded important results towards classification ...
• Synthesis and characterization for structural and optical properties of FASnI2Br for perovskite solar cell applications 

  Rohn Odhiambo Cephas , Duke Ateyh Oeba , Jared Ombiro Gwaro (2025-06)

  Solar cells being a clean and renewable energy source, help achieve sustainable development goal number 7; Affordable and clean energy. Perovskite solar cells have attracted the attention of researchers due to their exemplary ...
• Enhancing Real-Time Emergency Response With Artificial Intelligence: Algorithms For Faster DecisionMaking And Resource Allocation 

  Cecil Segero Alukhava, Dr. Dennis Mugambi Kaburu, Dr. Kennedy Odhiambo Ogada, Joash Bii Kiprotich, Charles Masoud. (2025-04)

  Rapid and effective response systems are necessary for emergencies including pandemics, natural catastrophes, and cyber-attacks. In these kinds of scenarios, artificial intelligence (AI) has become a game-changing tool ...
• Modeling Cholera Transmission Dynamics with Vaccination Using Caputo-Fabrizio Fractional Derivatives 

  Metet K. Nelson a∗, Wasike A.M. Adu a, Njuguna Edward a and Makwata Harun (2025)

  We develop a fractional-order mathematical model for cholera transmission dynamics incorporating vaccination and memory effects via the Caputo-Fabrizio(CF) derivative. In the model, we capture the waning efficacy of ...

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