Browsing School of Biological and Physical Science by Title
Now showing items 704-723 of 925
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Production and characterization of activated carbons from sugarcane bagasse from Chemelil sugar factory, compared with commercial activated carbons
(Journal of Engineering in Agriculture and the Environment, 2020)In Kenya activated carbon is imported yet we have enough bagasse that can be used in its production. The activated carbon from bagasse adds economic value to the bagasse and the processing excess bagasse provides for ... -
Productivity and nitrogen use of tea plantations in relation to age and genotype
(Elsevier, 2008-07-11)Lack of science-based knowledge on responses of tea bushes to nitrogen (N) in ageing tea plantations hampers the development of ecologically sound and economically profitable N-management strategies. It is hypothesized ... -
Progressively accurate WKB approximations through factorization and successive boost transformations
(Research gate, 2015)This paper develops a procedure for obtaining progressively improving approximate solutions of the WKB (semiclassical ) model of the stationary Schroedinger equation through factorization and successive boost transformations ... -
Puberty and dispersal in a wild primate population
(Academic Press, 2013-07-01)This article is part of a Special Issue “Puberty and Adolescence”. The onset of reproduction is preceded by a host of organismal adjustments and transformations, involving morphological, physiological, and behavioral ... -
Pull Motivation Factors Influencing Tourists’ Destination Loyalty in the Lake Victoria Region Tourism Circuit, Kenya
(www.ajpojournal.org, 2021)Purpose:The purpose of this study was to identify pull motivation factors influencing tourists’ destination loyalty in the Lake Victoria Region Tourism Circuit, Kenya. Methodology:Thestudy adopted anexplanatoryresearch ... -
Push Motivation Factors Influencing Tourists’ Destination Loyalty in the Lake Victoria Region Tourism Circuit, Kenya
(Journal of Hospitality and Tourism, 2021)Purpose:The purpose of this study was to identify push motivation factors influencing tourists’ destination loyalty in the Lake Victoria Region Tourism Circuit, Kenya. Methodology:Thestudy adopted an explanatory research ... -
The pyrrolizidine alkaloids of Senecio syringifolius and S. hadiensis from Kenya
(Pergamon, 1993-01-01)Angularine, rosmarinine and 12-O-acetylrosmarine, together with their N-oxides were isolated from epigeal parts of S. syringifolius, while -
Quadrature fluctuation energy, effective Hamiltonians, quasi-particle modes and quantum phase transitions in the Rabi and Dicke models
(Research gate, 2017)The main purpose of this article is to provide a simple physically motivated exact analytical procedure for determining effective Rabi and Dicke Hamiltonians, which have so far posed serious challenges in studies of ... -
Quality and yields of black tea Camellia sinensis (L.) O. Kuntze responses to harvesting: A review on experiences from Kenya
(PBS Journals, 2012)Tea beverages, from tender shoots of Camellia sinensis L., are the most widely consumed fluids after water. The young tender shoots of the plant are harvested using various plucking methods. Incorrect plucking leads to ... -
Quality response of clonal black tea to nitrogen fertiliser, plucking interval and plucking standard
(John Wiley & Sons, Ltd., 2000)Variations in the black tea quality of high‐yielding clone S15/10 in response to rates of NPKS 25:5:5:5 fertiliser of 200 and 400 kg N ha−1 year−1, plucking intervals of 7, 14 and 21 days and a selective plucking standard ... -
Quantification of methane emitted by ruminants: A review of methods
(Oxford University Press, 2022-07)The contribution of greenhouse gas (GHG) emissions from ruminant production systems varies between countries and between regions within individual countries. The appropriate quantification of GHG emissions, specifically ... -
Quantum thermodynamics of a strongly interacting bose-fermi mixture in a three-dimensional anharmonic potential
(Research gate, 2016)ABSTRACT Thermodynamic properties of Bose-Fermi mixture at ultra-low temperatures were studied using perturbation theory in three Cartesian coordinates. The Hamiltonian for the mixture was developed in terms of boson-boson, ... -
Quasiparticle spinors in light-matter interactions: generalized Jaynes-Cummings and antiJaynes-Cummings models
(Research gate, 2020)Seeking a clear understanding of the physical nature of quasiparticle excitations formed in the JaynesCummings and antiJaynes-Cummings interaction mechanisms in the quantum Rabi model, we have introduced appropriate composite ... -
The Question of Elitism, Medium and Audience in African Literature: Examples from Kiswahili Short Story
(Academia.edu, 2014)Since the Makerere Conference of 1962, the question of what is ‘African Literature’ has remained unresolved. To a large extent a great number of scholars led by Ngugi reduced the whole question to that of language. This ... -
Quiet Time Correlation Between Geomagnetic Field Variations and the Dynamics of the East African Equatorial Ionosphere
(Science Publishing Group, 2017)The equatorial ionosphere is highly dynamic and consequently poses serious threats to communication and navigation systems. As a result, proper understanding of ionospheric dynamics is important. The present paper presents ... -
Quiet Time Geomagnetic Field Variations in the Equatorial East African Region During the Inclining Phase of Solar Cycle 24
(Science Publishing Group, 2014)In the present paper, geomagnetic field data obtained from magnetometer measurements at two ground based stations have been used to study solar activity dependence of the solar quiet variations. The study has focused on ... -
Química Inorgânica 1
(African Virtual University U i i Vi ll Af i i, 2001-02-07)O módulo começa com um olhar crítico à Tabela Periódica de elementos e a razão para a respectiva forma de classificação. A tabela torna mais fácil a compreensão e mais rápido, dos conceitos e factos da química dos elementos. ...