• Radiological assesment of natural radioactivity levels in selected ceramic tile brands used in Kenya 

  Linturi, James M.; Kitheka, James N.; Maweu, Onesmus M. (2024-06)

  The assessment of the radiation levels of the natural radionuclides 232Th, 238U and 40K in ceramic tiles used in Kenya has been studied. The radiometric analysis was done using a high-efficiency gamma-ray spectrometer. A ...
• Concentration of copper, zinc, lead, cadmium, and nickel in the incinerator bottom ash in five County hospitals in Kenya 

  Githinji, Muriithi J.; Njogu, Paul M.; Ng'ang'a, Zipporah W.; Karama, Mohamed (Scientific Research Publishing, 2024-06-24)

  Healthcare wastes contain potentially harmful microorganisms, inorganic and organic compounds that pose a risk to human health and the environment. Incineration is a common method employed in healthcare waste management ...
• Kinetics modeling of biogas production from market waste inoculated with abattoir waste 

  Mbugua, James K.; Mbui, Damaris N.; Mwaniki, Joseph M.; Waswa, Gabriel A. (E-Palli Publishers, 2024-03-04)

  The anaerobic digestion process is a waste management method that is driven by microbes and therefore, it’s vital to understand the basic operation kinetics. This study demonstrates the kinetic study for twenty market ...
• Gamma ray spectrometric analysis and assessment of radiation hazards in soils of Mbeere North region, Kenya 

  Muya, Joyce W.; Riara, Martin M.; Kamweru, Paul; Ngugi, Fidelis (Oxford University Press, 2024-04-30)

  This study used gamma ray spectrometry to determine the radiological safety of construction soil sampled randomly from Mbeere North region, Kenya. The mean activity concentration of 232Th, 238U, and 40K was 149.7 ± 2.8 ...
• A Sesotho news headlines dataset for sentiment analysis 

  Mokhosi, Refuoe; Shikali, Casper S.; Sethobane, Matello (Elsevier, 2024-03-27)

  Sentiment Analysis (SA) is a subset of Natural Language Processing (NLP) which has become a promising research area enabling the provision of language specific services. Although research in high resource languages such ...
• Genetic analyses of ancient tea trees provide insights into the breeding history and dissemination of Chinese Assam tea (Camellia sinensis var. assamica) 

  Li, Miao-Miao; Meegahakumbura, Muditha K.; Wambulwa, Moses C.; Burgess, Kevin S.; Moller, Michael; Shen, Zong-Fang; Li, De-Zhu; Gao, Lian-Ming (Elsevier, 2024-03)

  Chinese Assam tea (Camellia sinensis var. assamica) is an important tea crop with a long history of cultivation in Yunnan, China. Despite its potential value as a genetic resource, its genetic diversity and domestication/breeding ...
• Zeolite Na-A supported TiO2: Effects of TiO2 loading on structural, optical and adsorption properties 

  Munguti, Lawrence K.; Dejene, Francis B.; Muthee, Dorah K. (Elsevier, 2023-03)

  Zeolite Na-A supported TiO2 nanopowders were synthesized via a modified sol–gel technique and the effects of TiO2 loading were characterized for thermal, structural, morphological, optical and textural behaviour. Thermal ...
• Farmers’ knowledge, perceptions, and management practices of false codling moth (thaumatotibia leucotreta) in smallholder capsicum sp. cropping systems in Kenya 

  Onamu, Emmanuel M.; Mutyambai, Daniel M.; Nyangau, Isaac M.; Nderitu, John H.; Kasina, Muo; Kilalo, Dorah C.; Mweke, Allan N. (MDPI, 2024)

  False codling moth (FCM) Thaumatotibia leucotreta Meyrick (Lepidoptera: Tortricidae) is currently the main pest of phytosanitary concern in international trade, causing rejection and decline of horticultural produce from ...
• Levels of polycyclic aromatic hydrocarbons (PAHs) in healthcare waste incinerators’ bottom ash from five County hospitals in Kenya 

  Githinji, Muriithi J.; Njogu, Paul M.; Ng'ang'a, Zipporah W.; Karama, Mohamed (Scientific Research Publishing, 2024-03)

  Health-care waste contains potentially harmful microorganisms and compounds which can infect and affect hospital patients, healthcare workers, the general public and environment. Therefore, management of health care waste ...
• Maximal activation weighted memory for aspect based sentiment analysis 

  Mokhosi, Refuoe; Shikali, Casper S.; Qin, Zhiguang; Liu, Qiao (Elsevier, 2022-11)

  The vast diffusion of social networks has made an unprecedented amount of user-generated data available, increasing the importance of Aspect Based Sentiment Analysis(ABSA) when extracting sentiment polarity. Although recent ...
• Enhancing African low-resource languages: Swahili data for language modelling 

  Shikali, Casper S.; Mokhosi, Refuoe (Elsevier, 2020-08)

  Language modelling using neural networks requires adequate data to guarantee quality word representation which is important for natural language processing (NLP) tasks. However, African languages, Swahili in particular, ...
• Soil to plant transfer factors of natural radionuclides in khat (catha endulis) from Igembe south Subcounty, Kenya 

  Eliud, Elias M.; Riara, Martin M.; Kamweru, Paul; Ngugi, Fidelis (2024-01)

  This study evaluated the soil to plant transfer factors of khat (Catha endulis) to determine the absorption potential of natural radionuclides. Soil and leaves of Khat were sampled from Igembe south subcounty, Kenya and ...
• Ecology and management of African honey bees (Apis mellifera L.) 

  Frazier, Maryann; Muli, Elliud; Patch, Harland (Annual Reviews, 2024)

  In Africa, humans evolved as honey hunters of honey bee subspecies adapted to diverse geographical regions. Beekeeping today is practiced much as it was when Africans moved from honey hunting to beekeeping nearly 5,000 ...
• Modeling in mathematics in estimation and prediction of the coronavirus infections in Kitui county. A case with isolation of the vulnerable 

  Maithya, Grace M.; Kaluki, Winnie; Kitetu, Virginia (2022)

  People’s lives have been affected socially by the coronavirus around the globe. Because of its social and economic impact, some measures for the prevention of the disease have been placed so that the spread can ...
• Incorporating sensitization in mathematical modeling of alcoholism as an infectious disease 

  Obuya, Joseph O.; Kimathi, George; Kaluki, Winnie (2020)

  Alcoholism is a problem that affects different aspects of our life in the society. In this study, alcoholism was taken and treated as an infectious disease. We developed a SISeTR model, which is a mathematical model ...
• Numerical solution of alcoholism as an infectious disease 

  Obuya, Joseph O.; Kimathi, George; Kaluki, Winnie (2020)

  In this paper we developed a SISeTR model, which is a mathematical model of alcoholism as an infectious disease with five compartments i.e. susceptible, infected, sensitized, treated and recovered. The R0 was developed ...
• Effects of activation energy on reactive MHD flows with joule heating 

  Nyundo, Stephen K.; Ngesa, Joel O.; Mutuku, Winifred N.; Okelo, Jeconia; Awuor, Kennedy (2022-12)

  This paper explores the effects of Arrhenius activation energy on a chemically reactive MHD flow through a porous surface while considering the joule heating effect of the two-dimensional free convective flow. The study ...
• Analysis of Arrhenius activation energy in an electrically conducting fluid flow with chemical reaction and viscous dissipation 

  Nyundo, Stephen K.; Ngesa, Joel O.; Mutuku, Winifred N. (2023-01)

  This study takes into account the effects of Arrhenius activation energy on the fluid, the viscous dissipation of the fluid, and the chemical reactions in the fluid as it investigates recent advancements in electrically ...
• Heat and mass transfer past a semi- infinite vertical porous plate in MHD flows in turbulent boundary 

  Ngesa, Joel O.; Awuor, Kennedy O.; Abonyo, Jeconia O.; Kimathi, Mark E. M. (2018-02)

  This study addresses the problem of unsteady free convection incompressible MHD fluid flow past a semi-infinite vertical porous plate in the presence of a strong magnetic field inclined at an angle  to the plate with ...
• Magnetohydrodynamic (MHD) free convective flow past an infinite vertical porous plate with joule heating 

  Sigey, Johana K.; Okelo, Jeconia A.; Gatheri, Francis K.; Ngesa, Joel O. (2013-05)

  This work addresses the problem of Magnetohydrodynamic laminar unsteady flow of an incompressible electrically conducting fluid past an infinite vertical porous plate. It investigates how joule heating affects the velocity ...

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