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Now showing items 743-762 of 1091
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Occurrence and distribution of cassava begomoviruses in Kenya
(Annals of Applied Biology, 2005-03-16)SummaryA survey for cassava mosaic disease (CMD) was conducted in Kenya, to investigate the factors contributing to the generally increased incidence and severity of CMD in the cassava growing regions and to study the ... -
Occurrence and Distribution of Per- and Polyfluoroalkyl Substances from Multi-Industry Sources to Water, Sediments and Plants along Nairobi River Basin, Kenya
(Environmental Research and Public Health, 2022-07-23)Per- and polyfluoroalkyl substances (PFAS) are ever-present pollutants in the environment. They are persistent and bio-accumulative with deleterious health effects on biota. This study assesses the levels of PFAS in ... -
Occurrence and Distribution of Per- and Polyfluoroalkyl Substances from Multi-Industry Sources to Water, Sediments and Plants along Nairobi River Basin, Kenya
(International Journal of Environmental Research and public health, 2022-07-23)Per- and polyfluoroalkyl substances (PFAS) are ever-present pollutants in the environment. They are persistent and bio-accumulative with deleterious health effects on biota. This study assesses the levels of PFAS in ... -
Occurrence characteristics of equatorial plasma bubbles over Kisumu, Kenya during Solar maximum of Solar Cycle 24
(International Journal of Advanced Astronomy, 2021-01)Equatorial Plasma Bubbles (EPBs) are irregular plasma density depletions in the ambient electron density in the equatorial F-region ionosphere generated after sunset. EPBs are known to bring disruptions to telecommunication ... -
Occurrence characteristics of equatorial plasma bubbles over Kisumu, Kenya during Solar maximum of Solar Cycle 24
(International Journal of Advanced Astronomy Occurrence, 2021-01)Equatorial Plasma Bubbles (EPBs) are irregular plasma density depletions in the ambient electron density in the equatorial F-region ionosphere generated after sunset. EPBs are known to bring disruptions to telecommunication ... -
Occurrence characteristics of equatorial plasma bubbles over Kisumu, Kenya during Solar maximum of Solar Cycle 24
(International Journal of Advanced Astronomy, 2021-01)Equatorial Plasma Bubbles (EPBs) are irregular plasma density depletions in the ambient electron density in the equatorial F-region ion-osphere generated after sunset. EPBs are known to bring disruptions to telecommunication ... -
OCCURRENCE, DISTRIBUTION AND MOLECULAR DIVERSITY OF GROUNDNUT ROSETTE ASSISTOR VIRUS CAUSING GROUNDNUT ROSETTE DISEASE IN WESTERN KENYA
(MMUST, 2020-02-20)Groundnut (Arachis hypogaea Linn) is an important legume in western Kenya, but yields are low and declining. Pests and diseases are ranked high among the yield reducing factors. Groundnut rosette disease (GRD) is the main ... -
On A Class of Idealized Near-Rings Admitting Frobenius Derivations.
(Journal of Advances in Mathematics and Computer Science, 2020-07-15)In this paper, we use the idealization procedure for finite rings to construct a class of quasi-3 prime Near-Rings N with a Jordan ideal J(N) and admitting a Frobenius derivation. The structural characterization of N; J(N) ... -
On Characterization of Norm Attaining Operators in Fr´echet Spaces
(Journal of Advances in Mathematics and Computer Science, 2022-10-25)In this paper, the norm attaining operators in Fr´echet spaces are considered. These operators are characterized based on their density, normality, linearity and compactness. It is shown that the image is dense for a ... -
ON THE ADJACENCY AND INCIDENCE MATRICES OF THE ZERO DIVISOR GRAPHS OF A CLASS OF THE SQUARE RADICAL ZERO FINITE COMMUTATIVE RINGS
(International Journal of Pure and Applied Mathematics, 2018-04-16)The characterization of the zero divisor graphs of commutative finite rings has attracted a lot of research for quite sometime, however not so much has been done concerning their Adjacency and Incidence matrices. In ... -
ON THE CHARACTERIZATION OF THE UNIT GROUPS OF A CLASS OF TOTAL QUOTIENT RINGS
(MMUST, 2017-10)Let R be a completely primary finite ring of characteristic pk, where p is a prime and k is a positive integer. Such finite rings have been studied extensively in recent years and the tools necessary for describing completely ... -
ON THE GENERATORS OF CODES OF IDEALS OF THE POLYNOMIAL RING FOR ERROR CONTROL
(2017-10)Shannon introduced error detection and correction codes to address the growing need of efficiency and reliability of code vectors. Ideals in algebraic number system have mainly been used to preserve the notion of unique ... -
On the predictors of pro-environmental behaviors: integrating personal values and the 2-MEV among secondary school students in Tanzania
(Heliyon, 2022-05-03)The role of personal values in understanding pro-environmental attitudes and behaviors has received considerable attention from psychological researchers. However, little is known about the mutual interaction of personal ... -
On the Zero Divisor and Cayley Graphs of Some Classes of the 2-Radical Index of Nilpotence Finite Local Rings
(Journal of Advances in Mathematics and Computer Science, 2022-07-08)The characterization of finite local rings via the well known structures of their zero divisor graphs and cayley graphs remains an open problem. Some classes of completely primary finite rings which are local, have however ... -
OPERATIONAL DETERMINANTS AND REVENUE COLLECTION EFFICIENCY IN COUNTY GOVERNMENT OF NANDI, KENYA
(MMUST, 2021-05)The purpose of revenue collection is to lessen inequalities in the distribution of income and wealth, in modern economics taxes are the most important sources of revenue. Since the introduction of devolved system of ... -
Optical modelling of TCO based FTO/TiO2 multilayer thin films and simulation in hydrogenated amorphous silicon solar cell
(Scientific Africa, 2023-04-26)Hydrogenated Amorphous silicon (a:Si:H) has low amounts of defects making it attractive for photovoltaic applications. To improve power conversion efficiency (PCE) of a:Si:H solar cells, this study investigated the effect ... -
Optimal Allocation in Small Area Mean Estimation Using Stratified Sampling in the Presence of Non-Response`
(International Journal of Statistical Distributions and Applications, 2021-03-01)Sample survey provides reliable current statistics for large areas or sub-population (domains) with large sample sizes. There is a growing demand for reliable small area statistics, however, the sample sizes are ... -
Optimal efficacy in mosquito-host interaction inhibition by 35-60 kHz animal sounds for malaria control
(Biophysical Journal, 2023-02-10)Female Anopheles gambiae sensu stricto, the malaria vector, continues to develop resistance to synthetic insecticides thus threatening its control. Studies on mosquitoe's phonotaxis showed that the electronic mosquito ...
