Browsing School of Biological and Physical Science by Title
Now showing items 713-732 of 925
-
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. ... -
Rabi oscillations, entanglement and teleportation in the anti-Jaynes-Cummings model
(Cornell University, 2021)This paper provides a scheme for generating maximally entangled qubit states in the anti-JaynesCummings interaction mechanism, so called entangled anti-polariton qubit states. We demonstrate that in an initial vacuum-field, ... -
Rabi oscillations, entanglement and teleportation in the anti-Jaynes-Cummings model
(Cornell University, 2021)This paper provides a scheme for generating maximally entangled qubit states in the anti-JaynesCummings interaction mechanism, so called entangled anti-polariton qubit states. We demonstrate that in an initial vacuum-field, ... -
Radiation Use Efficiency and Yield Responses of Clonal Tea (Camellia sinensis) to Locations of Production
(International Society of Tea Science, 2019)Tea in Kenya is grown in the high and medium rainfall areas of the Kenyan highlands in east and west of the Rift Valley, at altitudes ranging from 1300 to 2700 m above mean sea level. Variability in responses of tea genotypes ... -
Rainfed Rice Production and there Germplasm Development in Kenya
(U.S. Department of Energy Office of Scientific and Technical Information, 1999-07-01)ice (Oryza Sativa L.) has been grown in Kenya for several centuries and during this time has been locally selected by farmers for adaptation in the dry climate of Kenya highlands and coastal region. this history of selection ... -
Rapid detection of carbapenemase-producing Acinetobacter baumannii and carbapenem-resistant Enterobacteriaceae using a bioluminescence-based phenotypic...
(Elsevier, 2014-04-01)Accurate detection of carbapenem-resistant Enterobacteriaceae (CRE) and carbapenemase-producing carbapenem-resistant Acinetobacter spp. (CP-CRA) constitutes a major challenge in laboratory diagnostics. We developed a ... -
The rate of outcrossing in grain amaranths
(Blackwell Publishing Ltd, 1991-09-01)Studies of intra specific and inter specific out crossing rates were carried out for grain amaranths using two populations of A. hypochondriacus (populations 1008 and 1024) and two populations of A. cruentus (populations ... -
Reaction of Some Coffea arabica Genotypes to Strains of Colletotrichum kahawae, the Cause of Coffee Berry Disease
(Blackwell Publishing Ltd, 2000-01-01)Pathogenicity tests were performed on 11 genotypes of Coffea arabica using single‐isolate suspensions of Colletotrichum Kahawae obtained from 90 monoconidial isolates. The objective of this study was to estimate the ... -
Reactions of Methyl Iodide and Halopropanes with Na0 Treated and Untreated NaX and NaY Zeolites
(Cambridge University Press, 2005)Products formed from reactions of methyl iodide, 1-chloropropane, 1-iodopropane and 1-bromopropane with Na0 treated and untreated NaX and NaY zeolites were studied using solid state 13C NMR and IR spectroscopy. At room ... -
Recent Influences of Anthropogenic Activities and Seasons on Heavy Metal Distribution in Shoreline Sediments in Lake Victoria Near Kisumu City, Kenya
(Journal of Environmental Analytical Chemistry, 2017)The Winam Gulf on Lake Victoria around Kisumu city has seen increase in anthropogenic activities. The activities discharge pollutants, especially heavy metals into the lake. The heavy metals sink into sediments, which ...