Browsing School of Pure and Applied Sciences by Issue Date
Now showing items 21-40 of 259
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Study of atrazine degradation in soil fromKenyan sugarcane-cultivated fields in controlledlaboratory conditions
(2009)A study to compare the extent of atrazine mineralization in soils from Kenyan sugarcane-cultivated fields with and without history of atrazine use was carriedout in the laboratory under controlled conditions. The study was ... -
Anti-trypanosomal effects ofAzadiracta indica(neem)extract onTrypanosoma brucei rhodesiense-infected mice
(Eastern Journal of Medicine, 2009)Anin vivostudy was carried out to determine the anti-typanosomal effect of aqueous extracts of the barkofAzadiracta indica(neem) inTrypanosoma brucei rhodesiense-infected mice. The extracts were orallyadministeredad ... -
Atrazine and terbuthylazine mineralization by an Arthrobacter sp. isolated from a sugarcane-cultivated soil in Kenya
(Chemosphere, 2009)A tropical soil from a Kenyan sugarcane-cultivated field showed a very high capability to mineralize 14C-ring-labeled atrazine. In laboratory experiments this soil mineralized about 90% of the applied atrazinewithin98 ... -
Electrochemical Aptasensor for Endocrine Disrupting 17β-Estradiol Based on a Poly(3,4-ethylenedioxylthiopene)-Gold Nanocomposite Platform
(Molecular Diversity Preservation International, 2010)A simple and highly sensitive electrochemical DNA aptasensor with high affinity for endocrine disrupting 17β-estradiol, was developed. Poly(3,4-ethylenedioxylthiophene) (PEDOT) doped with gold nanoparticles (AuNPs) was ... -
Estimation of T- period’s ahead extreme quantile autoregression function
(African Journal of Mathematics and Computer Science Research, 2010)This paper considers the estimation of extreme quantile autoregression function by using a parametric model. We combine direct estimation of quantiles in the middle region with that of extreme parts using the model and ... -
Modelling the volatility of exchange rates in the Kenyan market
(Academic Journals, 2010)This paper considers the application of the generalized autoregressive conditional heteroscedasticity process in the estimation of volatility in the Kenyan exchange rates. A quasi-maximum likelihood estimation procedure ... -
Social Value Formation and Switching toTtithonia in Nzoia River drainage
(Global Business & Economics Anthology, 2010)Following Ozaki (2009) the paper examines positive social values for switching from inorganic fertilizers to* tithonia in the NRDB. The predominance of sugar cane production in the NRDB generates immense water 3 pollutants ... -
Synthesis and characterization of poly (propylene imine) dendrimer–Polypyrrole conducting star copolymer
(Elsevier, 2010)A star copolymer based on poly(propylene imine) (PPI) dendrimer core (generations 1–4) and polypyrrole (PPy) shell was prepared. The synthesis procedure involved a condensation reaction between PPI surface primary amine ... -
Determination of Anthracene on Ag-Au Alloy Nanoparticles/Overoxidized-Polypyrrole Composite Modified Glassy Carbon Electrodes
(Molecular Diversity Preservation International, 2010)A novel electrochemical sensor for the detection of anthracene was prepared by modifying a glassy carbon electrode (GCE) with over-oxidized polypyrrole (PPyox) and Ag-Au (1:3) bimetallic nanoparticles (Ag-AuNPs). The ... -
Conflict resolution using statistical approach
(Academic Journals, 2010)Conflict can be described as a condition in which actions of one person prevent or compel some outcome at the resistance of the other. Quite often this can be seen as “two or more competing, often incompatible, responses ... -
Electrochemical Aptasensor for Endocrine Disrupting 17β-Estradiol Based on a Poly(3,4-ethylenedioxylthiopene)-Gold Nanocomposite Platform
(Molecular Diversity Preservation International, 2010)A simple and highly sensitive electrochemical DNA aptasensor with high affinity for endocrine disrupting 17β-estradiol, was developed. Poly(3,4-ethylenedioxylthiophene) (PEDOT) doped with gold nanoparticles (AuNPs) was ... -
Improved protocol for aseptic collection and handling procedures of bovine blood diet in areas with special contamination challenges for use in tsetse rearing
(SAGE Publications, 2010)Importation of blood to support tsetse feeding in Africa is costly and marred by delays, quarantine restrictions and other logistic problems,while chemical contamination is likely to be encountered in tsetse diet from drug ... -
Isolation And Testing The Cholesterol Reduction Ability (In-Vitro) Of Lactococcus Lactis From Fermented Smooth Pigweed (Amaranthus Hybridus) Leaves
(Bioline International, 2011)Probiotics are live microbial feed supplements, which positively affect the host animal by improving its intestinal microbial balance. Studies have shown probiotic activities of Lactococci isolated from dairy foods, which ... -
Lake Naivasha, Kenya: Ecology, Society and Future
(Freshwater Biological Association, 2011)We examine the degradation of the natural capital and ecosystem services of an important tropical lake, Kenya’s Lake Naivasha, in the context of human activities and exploitation since the mid-20th century. These factors ... -
Ideotyping integrated aquaculture systems to balance soil nutrients
(Journal of Agriculture and Rural Development in the Tropics and Subtropics, 2011)Due to growingland scarcityand lack of nutrientinputs, Africanfarmersswitched fromshiftingcultivationto continuous croppingand extendedcrop area by bringing fragile lands such as river banks and hill slopes into production. ... -
Application of Nonparametric Methods in Studying Energy Consumption
(University of Rwanda, 2011)Consumer behaviour towards different forms of energy varies over time. The variance can be so large that the quality of the estimation functional relationship between the response variable and its associated explanatory ... -
Impedimetry and microscopy of electrosynthetic poly(propylene thiophenoimine)-co-poly(3,4 ethylene dioxythiophene) dendritic star copolymer
(2011)The electrochemical impedance spectroscopy of generation 2 poly(propylene thiophenoimine)-co-poly(3,4 ethylene dioxythiophene) dendritic star copolymer (G2PPT-co-PEDOT) film was studied in LiClO4 solution. The results show ... -
Assessing the Challenge of Settlement in Budalangi and Yala Swamp Area in Western Kenya Using Landsat Satellite Imagery
(The Open Environmental EngineeringJournal, 2011)The Budalangi area of Kenya exhibits high levels of rural poverty despite its natural resources potential and favourable climate. The area was mapped using multi-temporal remote sensing image ... -
METRIBUZIN MOBILITY IN SOIL COLUMN AS AFFECTED BY ENVIRONMENTAL AND PHYSICO-CHEMICAL PARAMETERS IN MUMIAS SUGARCANE ZONE, KENYA
(ARPN Journal of Agricultural and Biological Science, 2011)The physico-chemical parameters of soil, influences the soil solution characteristics and that may affect the sorption of soil applied herbicides. The present investigation reports the influence of physico-chemical parameters ...