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Now showing items 111-120 of 439
Field evaluation of resistance to aflatoxin accumulation in maize inbred lines in Kenya and South Africa
(University of Nairobi, 2017)
Aflatoxin, a carcinogenic toxin, is produced mainly by Aspergillus flavus and Aspergillus parasiticus. Contamination of maize (Zea mays L.) grain by these fungi occurs before harvest, and the easiest strategy to prevent ...
Susceptibility of locally cultivated groundnut (Arachis hypogaea) varieties to aflatoxin accumulation in Homa Bay County, Kenya
(University of Nairobi, 2017)
Groundnut is one of the staple foods in many parts of the world. Due to its high nutrient content, the
nuts are liable to colonization by aflatoxigenic fungi and subsequent aflatoxin accumulation. This study
was aimed ...
Experiences of student-teachers on placement
(2017)
This paper, using case-study research approach and informed by
phenomenological and social constructivist theoretical perspectives, shares
experiences of five purposively student-teachers who were video-taped
practicing ...
Mycoflora and mycotoxins in finished fish feed and feed ingredients from smallholder farms in East Africa
(University of Nairobi, 2017)
A total of 52 samples of finished fish feeds and ingredients were collected from smallholder farmers in
Kenya, Tanzania, Rwanda and Uganda, and analyzed. Culture and molecular techniques were used to
identify fungal ...
Awareness and Prevalence of Mycotoxin Contamination in Selected Nigerian Fermented Foods
(University of Nairobi, 2017)
Fermented food samples (n = 191) including maize gruel (ogi), sorghum gruel (ogi-baba),
melon seed (ogiri), locust bean (iru) and African oil bean seed (ugba) from Southwest Nigeria
were quantified for 23 mycotoxins, ...
Teacher Attitudes Towards Teaching Following In-Service Program In Kenya
(University of Nairobi, 2017)
This paper assesses the extent to which teachers’ attitude towards chemistry teaching changes following
a needs-and participatory-oriented in-service teacher education program in Kenya. Thirty six (36)
randomly selected ...
Using fuzzy cognitive maps in modelling and representing weather lore for seasonal weather forecasting over east and Southern Africa
(University of Nairobi, 2017)
The creation of scientific weather forecasts is troubled by many technological challenges while their utilization is dismal. Consequently, the majority of small-scale farmers in Africa continue to consult weather lore to ...
Methods for translating ICTs’ survey questionnaire into French and Bambara
(University of Nairobi, 2017)
Researchers have used many instruments to gather data on the use of Information and
Communication Technology to disseminate information on agricultural inputs towards farmers.
These instruments are in English and based ...
A nested multivariate chemometrics based calibration strategy for direct trace biometal analysis in soft tissue utilizing Energy Dispersive X-Ray Fluorescence (EDXRF) and scattering spectrometry.
(University of Nairobi, 2017)
Compton scatter-modulated fluorescence and multivariate chemometric (artificial neural network (ANN) and principal component regression (PCR)) calibration strategy was explored for direct rapid trace biometals (Mn, Fe, Cu, ...
Equilibrium and Kinetic Studies of Cu(Ii) Removal from Aqueous Solutions Using a Kenyan Micaceous Mineral.
(University of Nairobi, 2017)
Copper (II) sorption on a Kenyan micaceous mineral (Mica-K) was studied in the batch mode. The effects
of different experimental parameters such as; initial concentration, contact time, sorbent dose, pH,
particle size, ...