Browsing School of Biological and Physical Science by Title
Now showing items 405-424 of 925
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Flavonol glycosides with insecticidal activity from methanol extract of Annona mucosa Jacq. leaves
(Islamic Azad University, Shahrood Branch Press, 2019-12)Three flavonoids, quercetin 3-O-β-D-glucoside (1), quercetin 3-O-α-Darabinoside (2) and kaempferol-3-O-β-D-galactoside (3) were isolated from the methanol extract of the leaves of Annona mucosa Jacq. Their structures ... -
Flavour volatiles of Assam CTC black teas manufactured from different plucking standards and orthodox teas manufactured from different altitudes of Darjeeling
(John Wiley & Sons, Ltd, 1988-01-01)Biochemical correlations between volatile flavour constituents (VFC) of CTC bluck teas manufactured from fine and coarse plucking of Assam tea and orthodox teas fiom three different altitudes were carried out by GC-MS. ... -
Flow of a Self-Similar Non-Newtonian Fluid Using Fractal Dimensions
(MDPI, 2022)In this paper, the study of the fully developed flow of a self-similar (fractal) power-law fluid is presented. The rheological way of behaving of the fluid is modeled utilizing the Ostwald–de Waele relationship (covering ... -
Foliar Diseases and the Associated Fungi in Rice Cultivated in Kenya.
(MDPI, 2022)We conducted a survey to assess the occurrence and severity of rice blast and brown spot diseases on popular cultivars grown in the Busia, Kirinyaga, and Kisumu counties of Kenya in 2019. Working with agricultural extension ... -
Food security problems in various income groups of Kenya
(African Journal of Food, Agriculture, Nutrition and Development, 2013)Poverty and hunger are common in Kenya especially in arid and semi arid lands that cannot support crops and are also overgrazed thereby yielding low incomes, and in urban low income dwellings. Indicators of food insecurity ... -
Four Domains Of Parenting In Kenya
(Routledge, 2021)The goals of this study were to track changes in parental warmth and rules/limit-setting over time and to examine parents’ age at the time of their child’s birth, parents’ education, and child gender in relation to changes ... -
Function of Nitrate Ion and Tea Saponin Application Rates in Anerobic PAH Dissipation in Paddy Soil
(2016-06-01)Abstract In the present study, KNO 3 and tea saponin (TS) were applied to investigate systematically the potential impact of their concentrations on dissipation of anerobic polycyclic aromatic hydrocarbons (PAH) in ... -
Fundamental Investigation of Vesicle Bilayer Membrane Dynamics
(Western Michigan University, 2007)We studied the bilayer of vesicles from dimyristolyphosphatidylcholine (DMPC), using nitrobenzoxadiazole (NBD) probes, attached to the head (NBD-PE) and the tail (NBD-PC) of phospholipid derivatives. We characterized the ... -
Fundamental quantum noise in a fully quantized degenerate parametric amplification process
(Research gate, 2016)An exact analytical solution of the time-dependent Schroedinger equation for a fully quantized degenerate parametric amplification process generated by quantized multi-mode pump photons provides a quantized multi-photon ... -
Gaps in guests' and managers' perceptions of the marketing strategies of four and five star hotels in Kenya
(Research Gate, 2016)This study assessed guests’ and managers’ perceptions of the extent to which the marketing strategies of four and five star hotels in Kenya addressed the factors which influence the guests’ purchase decisions. The research ... -
Gastrointestinal Parasite Infections Of Sheep And Goats In A Semi-arid Area Of Machakos District, Kenya
(University of Nairobi University archive, 2004)A survey of gastrointestinal parasite and liver fluke infections of small ruminants was conducted for 18 months on two farms in Kathiani Division of Machakos District, Kenya. The effects of host species, season and age on ... -
Gender Analysis of Economic Efficiency in Smallholder Tea Production in Kenya
(Eastern Africa Agricultural Economics Society,1979, 2003)If the productivity of tea among the smallholders can only increase to about 2500 kg/ha/yr, the national projection of 300 thousand metric tones would be realized without the need to allocate more land to tea enterprise. ... -
General analytical solution for the one dimensional regular Cauchy problem of Euler-Poisson-Darboux equation
(Hikari Ltd, 2017)A general analytical solution to the one dimensional regular Cauchy problem of Euler-Poisson-Darboux (EPD) equation has been investigated. The one dimensional EPD which is a Partial Differential Equation (PDE) with initial ... -
A Generalization of Poiseuille’s Law for the Flow of a Self-Similar (Fractal) Fluid through a Tube Having a Fractal Rough Surface
(Multidisciplinary Digital Publishing Institute, 2023-01)In this paper, a generalization of Poiseuille’s law for a self-similar fluid flow through a tube having a rough surface is proposed. The originality of this work is to consider, simultaneously, the self-similarity structure ... -
Generalized relativistic dynamics in a non-inertial reference frame
(Springer-Verlag, 2010)Generalized relativistic field equations have been derived for dynamics in a non-inertial reference frame interpreted as a Finsler space where events are specified by both spacetime coordinates and corresponding velocities ... -
Genetic diversity among isolates of Colletotrichum kahawae causing coffee berry disease
(Association Scientifique Internationale du Café (ASIC) 17th Colloque, Montpellier, France, 1997)En este trabajo, aislamientos de una conidia de/Colletotrichum kahawae/, se sometieron a un análisis genético usando pruebas de patogenicidad y marcadores de proteínas, isoenzimas y RAPD. Para comparar, se incluyeron las ... -
Genetic diversity analysis reveals genetic differentiation and strong population structure in Calotropis plants
(Nature Publishing Group, 2018)The genus Calotropis (Asclepiadaceae) is comprised of two species, C. gigantea and C. procera, which both show significant economic potential for use of their seed fibers in the textile industry, and of their bioactive ... -
Genetic relatedness of Diplostomum species (Digenea: Diplostomidae) infesting nile tilapia (Oreochromis niloticus L.) in western Kenya
(Scientific Research Publishing, 2013-12-20)Diplostomum species metacercariae are trematode parasites that pose serious economic threats to aquaculture practice globally. Identification of Diplostomum at metacercariae stage has remained equivocal, hence lack of ... -
Genetics of bi-component leukocidin and drug resistance in nasal and clinical Staphylococcus aureus in Lagos, Nigeria
(Academic Press, 2018-02-01)Background Resistant and virulent Staphylococcus aureus is a global public health challenge. Staphylococcal Bi-component leukotoxins are cytolytic to immune cells and evolve to disarm the innate immunity during infections, ... -
Genotype and environment interactions of yields and yield components of tea (Camellia sinensis) cultivars in Kenya
(Scientific Research Publishing, 2016)The tea crop provides income and employment to rural populations in many countries. In Kenya, tea, which is the leading export commodity crop, is grown in highlands east and west of the Rift Valley at altitudes ranging ...