A comparative study of natural radioactivity and associated radiological hazards of imported sanitary ware products sold in Kenya
2024 KIBU Authors Michael Nakitare Waswa Peter Nyongesa Khakina VIEW ON PUBLISHER SITE Abstract Natural radioisotopes are present in all ceramic products used in building construction at varying rates. The primary source of outdoor radiation that residents of homes or workplaces are exposed to is these radioisotopes. Determining the radiation levels of ceramic items used […]
Assessment of radiogenic heat production due to 238U, 232Th and 40K in surface soils of Ortum region, west Pokot county, Kenya
2024 KIBU Authors Michael Nakitare Waswa VIEW ON PUBLISHER SITE Abstract The activity concentrations of 238U, 232Th and 40K in Bq/kg were determined using a HPGe detector at the Institute of Nuclear Science and Technology at the University of Nairobi (Kenya). The activity concentrations were then converted into ppm (238U and 232Th) and % for 40K that were used for […]
First-principles calculations to investigate the bulk, electronic, optical and thermoelectric properties of BaGe2As2 and BaGe2P2 alloys
2024 KIBU Authors Michael Nakitare Waswa VIEW ON PUBLISHER SITE Abstract The structural, elastic, electronic, and optical properties of BaGe2As2 and BaGe2P2 have been theoretically investigated, but their thermoelectric properties have not been reported. The current work aimed at conducting an exhaustive study on the bulk, electronic, and optical properties as well as the thermoelectric property of […]
Radiogenic Heat Production in Selected River Sediments of Bungoma County, Kenya
2025 KIBU Authors Michael Nakitare Waswa VIEW ON PUBLISHER SITE Abstract This study is aimed at investigating the radiogenic heat production in the sediment samples using measurements of primordial radionuclide concentrations of uranium, thorium, and potassium in the major rivers of Bungoma County, Kenya. A gamma-ray spectrometer is used to obtain varied data on naturally […]
Crystal Structure And Mechanism Of Superconductivity In Cerium Based Heavy Fermions
2025 KIBU Authors Michael Nakitare Waswa VIEW ON PUBLISHER SITE Abstract Superconductivity in certain intermetallic rare-earth compounds takes place amongst it’s electron-hole elementary excitations referred to as excitons. No theoretical study has been performed taking account of these excitons. In the present attempt it has been done. Formation of Cooper pair in heavy electrons due […]
Pressure Effects On Energy Of H3S And LaH10 Superconductor Due To Collective Excitation Of Cooper Pairs
2025 KIBU Authors Nakitare Waswa Michael VIEW ON PUBLISHER SITE Abstract There are two categories of superconductors; s-wave superconductors that are isotropic and d-wave superconductors that are anisotropic. The microscopic theory of superconductivity by Bardeen, Schrieffer and Cooper (BCS theory) explains s-wave pairing of charges under ambient pressure but it fails to explain charge pairing […]
MARKOVIAN Modeling of Students Performance by Cohorts in Secondary Schools
2022 KIBU Authors Sirengo J. L. VIEW ON PUBLISHER SITE Abstract The evaluation of students’ progress is a very important part of any educational system. Examination results is one of the indicators of a student’s success and school performance. The assessment methods used in schools cannot be used to forecast with what certainty a student’s […]
Efficient Method for Estimating the Presence of a Viral Infectious Disease and How to Control Its Rapid Spread in a Population
2022 KIBU Authors Sirengo John Luca VIEW ON PUBLISHER SITE Abstract Lack of sufficient mass testing tools for viral infectious diseases such as Influenza, common cold, covid-19, mumps, Ebola and many others has contributed to the accelerated spread of the epidemics. Containment of this rapid viral spread requires an extensive testing of the affected […]
Uses, Threats and Conservation of Plant Species in Kisere Catchment Area of Kakamega Forest, Kenya
2022 KIBU Authors Martha Konje VIEW ON PUBLISHER SITE Abstract Tropical rainforests are under threat from human encouragement and anthropogenic activities in sub-Saharan Africa. Despite the importance of tropical rainforests, anthropogenic activities are changing vegetation dynamics of tropical rainforests such as Kakamega forest. The aim of the study was to determine the most exploited tree […]
Assessing the Long-Term Changes in Selected Meteorological Parameters over the North-Rift, Kenya: A Regional Climatology Perspective
2024 KIBU Authors John Wanjala Makokha Martha Muthoni Konje Jonathan Mutonyi Victor Samuel Okello Collins Otieno Majengo VIEW ON PUBLISHER SITE Abstract Understanding long-term trends in climatic variables is essential for assessing climate change impacts on regional ecosystems and human livelihoods. A regional analysis of climatic variables over some domains is inevitable due to their […]