Browsing School of Pure and Applied Sciences by Title
Now showing items 21-40 of 259
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Attitude of teachers and students towards the use of punishment in secondary schools in Kaloleni District of Coast province, Kenya
(2011)This study was carried out in 14 secondary schools in Kaloleni District. A descriptive approach was employed. Data were collected through the questionnaires designed for the teachers and students. The target population ... -
Bathymetry of Lake Bogoria, Kenya
(Nature Kenya/East African Natural History Society, 2003)This paper presents the first bathymetric map for the approximately 17 km by 2 km alkaline Lake Bogoria situated in the eastern Rift Valley of Kenya. Longitudinal and transverse cross sections of the lake are also provided. ... -
De bijdrage van visvijvers aan de nutriënthuishouding op gemengde kleinschalige landbouwbedrijven
(2007)Vijvers kunnen een aanzienlijke bijdrage leveren aan de nutriëntenkringloop op gemenge landbouwbedrijven. Het integreren van water- en landgebonden productie in gemengde bedrijven kan leiden tot een verhoogde efficiëntie ... -
Biodegradability of polyethylene by bacteria and fungi from Dandora dumpsite Nairobi-Kenya
(Public Library of Science, 2018)This study aimed at isolating and identifying bacteria and fungi with the capacity to degrade low density polyethylene (LDPE). The level of biodegradation of LDPE sheets with bacterial and fungal inoculums from different ... -
Biodegradation of carbofuran in soils within Nzoia River Basin, Kenya
(Taylor & Francis, 2015)Carbofuran (2,3-dihydro-2,2-dimethylbenzofuran-7-yl methylcarbamate) has been used within the Nzoia River Basin (NRB), especially in Bunyala Rice Irrigation Schemes, in Kenya for the control of pests. In this study, the ... -
Biodegradation of phenylurea herbicide diuron by microorganisms from long-term-treated sugarcane-cultivated soils in Kenya
(Taylor & Francis, 2011)The phenylurea herbicide diuron [N-(3,4-dichlorophenyl)-N,N-dimethylurea] is widely used alone or in a broad range of herbicide formulations. Its degradation in sugarcane-cultivated soils which have been impacted by the ... -
Biodegradation of s-triazine herbicide atrazine by Enterobacter cloacae and Burkholderia cepacia sp. from long-term treated sugarcane-cultivated soils in Kenya
(Taylor & Francis, 2011-09-26)In this study soils from sugarcane-cultivated fields were screened for bacterial species capable of atrazine (6-chloro-N2-ethyl-N4isopropyl-1,3,5-triazine-2,4-diamine)degradationduetolongexposureofthesoilstothisherbicide. ... -
Biodigester attribute tradeoffs among farmers in Kiambu and Machakos Counties, Kenya
(SSRN, 2022-04)The diffusion of biodigester technology can contribute support towards the achievement of the global goals brokered under the auspices of the United Nations. They have been promoted among farmers but low adoption remains ... -
Biodiversity characteristics of small high-altitude tropical man-made reservoirs in the Eastern Rift Valley, Kenya
(University Of Nairobi, 2002)The biodiversity characteristics in eight small (0.065–0.249 km2) public man-made reservoirs in the central part of the Eastern Rift Valley, Kenya, were studied between 1995 and 1998. A total of 71 phytoplankton species ... -
Biofunctionalized poly (amic) acid membranes for absolute disinfection of drinking water
(Elsevier, 2014-12)The integration of biological building-blocks with synthetic nanomaterials may permit unprecedented ability to detect, disinfect and completely remove pathogens in water. We hereby described the synthesis of biodegradable, ... -
Bootstrap of Kernel Smoothing in Quantile Autoregression Process
(Journal of Statistical and Econometric Methods, 2013)The paper considers the problem of bootstrapping kernel estimator of conditional quantiles for time series, under independent and identically distributed errors, by mimicking the kernel smoothing in nonparametric autoregressive ... -
Bootstrap Uniform Confidence Bands for A Local Linear Nonparametric Estimator and Applications to Financial Risk Management
(2012)This paper considers the problem of bootstrapping a local linear estimator in conditional quantile estimation of a financial time series assuming independent and identically distributed errors. A nonparametric ... -
Broadband quarter-wave plate based on dielectric-embedded plasmonic metasurface
(Royal Society of Chemistry, 2017)High transmission plasmonic and all-dielectric metasurface wave plates have been reported in recentstudies. However, narrow bandwidth and low polarization conversion need to be addressed to attaineven better operation ... -
Capture, isolation and electrochemical detection of industrially-relevant engineered aerosol nanoparticles using poly (amic) acid, phase-inverted, nano-membranes
(Elsevier, 2014-08-30)Workplace exposure to engineered nanoparticles (ENPs) is a potential health and environmental hazard. This paper reports a novel approach for tracking hazardous airborne ENPs by applying online poly (amic) acid membranes ... -
Car Antifreeze and Coolant: Comparing Water and Ethylene Glycol as Nano Fluid Base Fluid
(2018-06)Most internal combustion engines are fluid cooled using liquid coolants mostly water and ethylene glycol, whose heat transfer capabilities are limited. An alternative for improving their thermophysical properties is the ... -
Catalytic Reduction of Hexavalent Chromium using Nanostructured Polyamic Acid
(American Chemical Society, 2014)This paper provides a survey of conventional and emerging techniques that are available for characterizing engineered nanoparticles in complex matrices. Techniques that were considered include microscopy (TEM, SEM, HRTEM, ... -
Characterization of antibiotic resistance in environmental enteric pathogens from Kibera slum in Nairobi-Kenya
(Academic Journals, 2012)Kibera slum is characterized by poor sanitation hence the frequent outbreaks of diarrheal diseases. Emergence of antibiotic resistance by diarrhoea-causing bacteria is an inevitable challenge in the area. Diarrhea-causing ... -
Chemical Characteristics, with particular reference to phosphorus, of the rivers draining into Lake Naivasha, Kenya
(School of Biological Sciences, 2002)Macrophytes have been shown to perform important ecological roles in Lake Naivasha. Consequently, various studies regarding the impact of biotic factors on the macrophytes have been advanced but related studies on environmental ... -
A class of multi-phase traffic theories for microscopic,kinetic and continuum traffic models
(Computers and Mathematics with Applications, 2013)In the present paper are view and numerical comparison of a special class of multi-phase traffic theories based on microscopic, kinetic and macroscopic traffic models is given.Macroscopic traffic equations with multi-valued ... -
A Co-Integration Analysis of the Interdependencies between Crude Oil and Distillate Fuel Prices
(Scientific Research Publishing, 2018)The co-evolution and co-movement of financial time series are of utmost importance in contemporary finance, especially when considering the joint behaviour of asset price realizations. The ability to model interdependencies ...