Browsing School of Biological and Physical Science by Title
Now showing items 394-413 of 925
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Fate Studies of Chlorsulfuron in Selected Soils Within the Mara River Basin of Kenya
(Maseno University, 2016)Chlorsulfuron is a sulfonylurea herbicide used to control broadleaf and grass weeds in wheat farms within the Mara River Basin. It is assumed to be environmentally safe due to low application rates, relatively shorter ... -
Feasibility of an enhanced washing process to extract PBDEs/heavy metals/antibiotics from antibiotic resistance gene-affected soil with aqueous DNA followed by mi...
(2016-03-01)Abstract Purpose Remediation of polybrominated diphenyl ethers (PBDEs)/heavy metals/antibiotics mixed contaminated soil with high abundance of antibiotic resistance genes (ARGs) has being greatly challenging. Materials ... -
Female gametophyte in two Kenyan species of Inversodicraea (Podostemaceae).
(Academic Journals, 2009)The ontogeny and organization of the female gametophyte in I. bifurcata and Inversodicraea keniensis sp. nov. in Kenya were studied. The ontogeny of the female gametophyte was classified under the Apinagia type. The primary ... -
Fertilizer Response and Environment Interactions of Yield and Yield Components of Clonal Tea (Camellia Sinensis) in Kenya
(International Society of Tea Science, 2019)Tea is an important cash crop, providing income and employment to rural populations in many countries. In Kenya, tea is the leading export commodity crop and is grown in highlands east and west of the Rift Valley at altitudes ... -
Field evaluation of selected NERICA rice cultivars in Western Kenya
(Academic Journals, 2011-01-04)Food shortage is a major problem in sub-Saharan Africa as population increases. NERICA (New Rice for Africa), the high yielding rice cultivars with short growth cycle were developed to solve the food crisis. The progeny ... -
Field transmission efficiency of Alternaria sesami in sesame from infected seed
(Elsevier, 2003-11-30)Four sesame accessions with varying levels of susceptibility to Alternaria sesami were selected from an advanced germplasm collection of the Sesame Improvement Project to determine transmission efficiency of A. sesami from ... -
Finite Difference Analysis of 2-Dimensional Acoustic Wave with a Signal Function
(2015-12-09)This paper describes progress on a two dimensional numerical simulation of acoustic wave propagation that has been developed to visualize the propagation of acoustic wave fronts and to provide time-domain signal. In this ... -
First Order Expectation Values of Electron Correlation Operators for Two-Electron Atoms
(SPG, 2015)Simple analytic first-order wave functions corresponding to two-electron atoms electron correlation operators are obtained by reduction of the Rayleigh-Schrödinger first order perturbation equation to that of one-electron ... -
Flavanol composition and caffeine content of green leaf as quality potential indicators of Kenyan black teas
(1997)The Ñavanol composition and ca† eine content of green tea leaf, black tea quality parameters of theaÑavins, thearubigins, liquor brightness and total colour varied more among clones than with time of the year. In green ... -
Flavanol Composition and Caffeine Content of Green Leaf as Quality Potential Indicators of Kenyan Black Teas
(1997)The Ñavanol composition and ca†eine content of green tea leaf, black tea quality parameters of theaÑavins, thearubigins, liquor brightness and total colour varied more among clones than with time of the year. In green ... -
Flavonoids from Tephrosia interrupta and T. linearis.
(CABI DIRECT, 1990)In east Africa, medicinal uses have been reported for the roots of T. interrupta (coughs and treatment of women after childbirth) and the leaves of T. linearis ([unspecified] diseases in infants). Flavonoid analyses are ... -
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 ...