Browsing University Journals/ Articles by Title
Now showing items 970-989 of 1412
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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 Cassava Brown Streak Viruses in Western Kenya
(Journal of Agri-Food and Applied Sciences, 2014-07-31)A survey to investigate the distribution and occurrence of cassava brown streak viruses the causal agent for cassava brown streak disease (CBSD) was conducted in major Cassava growing areas of Western Kenya in November, ... -
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
(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, 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 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, distribution, incidence, and severity of common bean viral diseases in resource-limited smallholder farms of western Kenya
(Crop Protection, 2025-04-09)The common bean (Phaseolus vulgaris L.) is a vital pulse crop in Kenya, supporting over 300 million people in East Africa and Latin America with its high protein and starch content. However, bean production in Kenya is ... -
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 Certain Spaces of Ideal Operators
(SCIENCE MUNDI, 2023-11-16)We determine some important spaces of ideal operators and ideal characteristics. Special consideration is given to Frechet spaces, Spaces of finite rank operators and spaces of Hahn-Banach extension operators. The ... -
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 Extension of Existing Results on the Diophantine Equation:∑nr=1w2r+n3d2= 3(nd23+∑n3r=1w23r−1)
(Earthline Journal of Mathematical Sciences, 2025-01-05)Let $w_r$ be a given sequence in arithmetic progression with common difference $d$. The study of diophantine equation, which are polynomial equations seeking integer solutions has been a very interesting journey in the ... -
On Some Aspects of Compactness in Metric Spaces
(AFRICAN SCIENTIFIC ANNUAL REVIEW, 2024-04-17)In this paper, we investigate the generalizations of the concepts from Heine-Borel Theorem and the Bolzano-Weierstrass Theorem to metric spaces. We show that the metric space X is compact if every open covering has a finite ... -
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 Computationally Efficient Numerical Solution to the Helmholtz Equation
(International Mathematical Forum,, 2018-02)Named after Hermann L. F. von Helmholtz (1821-1894), Helmholtz equation has obtained application in many elds: investigation of acaustic phenomena in aeronautics, electromagnetic application, migration in 3-D geophysical ... -
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 Quotient Groups of Subgroups of the Unit Groups of a Class of Completely Primary Finite Rings
(Pure Mathematical Sciences,, 2015)The study of completely primary nite rings has generated interest- ing results in the structure theory of nite rings with identity. It has been shown that a nite ring can be classi ed by studying the structures of ... -
On The Sum of Three Square Formula
(SCIENCE MUNDI, 2023-11-30)Let n,x,y,z be any given integers. The study of n for which n = x2 +y2 + z2 is a very long-standing problem. Recent survey of sizeable literature shows that many researchers have made some progress to come up with algorithms ... -
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 ...
