Browsing School of Science, Technology and Engineering by Title
Now showing items 77-96 of 115
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Microbial community analysis in a combined anaerobic and aerobic digestion system for treatment of cellulosic ethanol production wastewater
(2015-06-22)This study investigated the microbial diversity established in a combined system composed of a continuous stirred tank reactor (CSTR), expanded granular sludge bed (EGSB) reactor, and sequencing batch reactor (SBR) for ... -
Micronutrient Zinc Deficiency as a Possible Co-factor in the Transmission and Progression of HIV/AIDS in Kenya
(2004)Thirty-four HIVIAIDS patients at various stages of disease progression volunteered to manage their ealth using a nutritional supplement that contained several micronutrients that included a 15 mg daily dose of elemental ... -
Modelling the Deflection of Reinforced Concrete Plates Using the Symplectic Method
(Journal of Sustainable Research in Engineering, 2020)This work aims to predict the flexural behavior of reinforced concrete slabs by combining a smeared finite element model derived from fracture mechanics for the simulation of the decline in the flexural rigidity of the ... -
Mycorrhizal Development and Phosphorus Concentration in selected Kenyan Sorghum Cultivars
(2015-08-19)This study was carried out on sorghum genotypes that exhibited significant difference in growth and production on P-deficient soils. The objective was to find out if the genotypes developed different levels of mycorrhizal ... -
Nutritional Characteristics of Rice (Oryza sativa L.) Composite Flours Obtained by Food Fortification
(European Journal of Agriculture and Food Sciences, 2021)High prevalence of protein-energy malnutrition among the vulnerable population, especially children has prompted research on fortification of common staple cereal foods such as rice. However, rice has inferior nutritional ... -
On (n, m)-Metrically Equivalent Operators
(International Journal of Mathematics And its Applications, 2021)In this paper, we introduce the class of (n,m)-metrically equivalent operators which is a generilazation of metrically equivalent operators and n-metrically equivalent operators. We then look at some properties of this ... -
On class (n, mBQ) Operators
(World Journal of Advanced Research and Reviews, 2021-06-26)In this paper, we introduce the class of (n, mBQ) operators acting on a complex Hilbert space H. An operator if T ∈ B (H) is said to belong to class (n, mBQ) if T ∗2mT 2n commutes with (T ∗mTn ) 2 equivalently [T ∗2mT 2n, ... -
On N-A-Metrically Equivalent and A-Metrically Equivalent Operators
(International Journal of Mathematics And its Applications, 2021)A-metrically equivalent operators may be regarded as a generalization of metrically equivalent operators. This is realized when A= I and T ]= T ∗ . Definition 1.1. Two operators S ∈ BA(H) and T ∈ BA(H) are said to ... -
On Numerical Range of Multiplication Operator
(International Journal of Mathematical Analysis, 2019)Let H be an infinite dimensional complex Hilbert space and A, B ∈ B(H) where B(H) is the C ∗ -algebra of all bounded linear operators on H. Let MAB : B(H) → B(H) be a multiplication operator induced by A and B defined ... -
On Skew Class (BQ) Operators
(ICONIC RESEARCH AND ENGINEERING JOURNALS, 2022-12)The class of Skew (BQ) operators acting complex Hilbert on an separable H is introduced in this paper. An operator if K ∈L (H) is said to belong to class Skew (BQ) if K commutes with a (BQ) operator, that ... -
Parameterized Empirical Potentials For BaF2 From Ab-Initio Methods Applied To The Study Of Superionic Transition Of C-BaF2
(Journal of Multidisciplinary Engineering Science and Technology (JMEST), 2018)Potentials for BaF2 have been generated from the ab-initio methods and tested to determine its applicability in classical dynamics. The minimization process for this force field was stopped at 17% where forces, ... -
Perception of Constructivist Learning Environment: Gender and School Type Differences in Siaya County, Kenya
(2014-12-17)Aims: The study aimed at investigating gender and school type differences in perception of Biology constructivist learning environment. Study Design: The study adopted a survey design. Place and Duration of Study: The ... -
Performance of CSTR–EGSB–SBR system for treating sulfate-rich cellulosic ethanol wastewater and microbial community analysis
(2017)Performance and microbial community composition were evaluated in a two-phase anaerobic and aerobic system treating sulfate-rich cellulosic ethanol wastewater (CEW). The system was operated at five different chemical ... -
Phylogenetic relationship among Kenyan sorghum germplasms based on aluminium tolerance
(2015-08-21)Eighty nine (89) sorghum lines sourced from various parts of Kenya were used to determine phylogenetic relationships based on 10 DNA fragments at AltSB loci with SbMATE, ORF9 and MITE primers. Nine lines of varying ... -
Physiological characterization of kenyan sorghum lines for tolerance to aluminium
(2015-08-21)Eighty nine Kenyan sorghum lines were screened for tolerance to aluminium toxicity in nutrient solution. Relative net root growth; root tip aluminium content and variation in organic acid exudation were used to determine ... -
Phytochemical Screening and in vitro Antiproliferative Activity of the Fruit of Annona muricata and Abelmoschus esculentus Pods against Selected Cancer Cell Lines
(Journal of Complementary and Alternative Medical Research, 2018-05-10)Incorporation of fruits and vegetables in diet can successfully be used in prevention and treatment of cancer. Annona muricata and Abelmoschus esculentus which belongs to the annonaceae and malvaceae family respectively ... -
Phytochemical Screening and in vitro Antiproliferative Activity of the Fruit of Annona muricata and Abelmoschus esculentus Pods against Selected Cancer Cell Lines
(Journal of Complementary and Alternative Medical Research, 2018-05-10)Incorporation of fruits and vegetables in diet can successfully be used in prevention and treatment of cancer. Annona muricata and Abelmoschus esculentus which belongs to the annonaceae and malvaceae family respectively ... -
Phytochemical Screening and Synergistic Antiproliferative Activity against Selected Cancer Cell Lines of Moringa oleifera and Indigofera arrecta Leaf Extracts
(European Journal of Medicinal Plants, 2018-04)Medicinal plants present a plausible source for anticancer agents. Combination of plant extracts and plant-derived compounds with the currently used cancer drugs has shown a marked improvement of the conventional drugs' ... -
Predicament and Development Direction of Network Effectiveness Learning: Analysis and Research of Ergonomic Effectiveness
(Educational Research and Policies, 2022-08-31)Human Factors and Ergonomics play a key role in the design and development of computer applications and tools. This is a multidisciplinary approach used to ensure that systems and learning environments are designed to ...