Journal Articles: Recent submissions
Now showing items 4841-4860 of 29885
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Anaerobic digestion of sewage wastewaters with sludge and rumen fluid
(2014-08)Anaerobic digestion was conducrcd at mesophilic (31'e) Gild thermophilic (S5"C) conditions using sewage wasteWaTers as the substrate and sludge and/or rum ell[luid as (he inoculum; with a view to optimis» biogcs production. ... -
Effect of Ga Incorporation and Film Thickness on the Optical Properties of as-Deposited Amorphous GaxSel-x Thin Films
(2014)Abstract: Flash evaporated amorphous Ga.Se i., (x = 0, I, 2, 3, and 4 atomic %) on glass substrates have bee. investigated within a 500nm-I500nm spectral range. Film thicknesses explored were; 200±IOnm, 265±IOnflJ. 330±IOnm, ... -
Management of soil fertility in western Kenya: Experience working with smallholder farmers
(African Crop Science Society, 2005)Crop yields in sub-Saharan Africa are low and unsustainable, reflecting prolonged food insecurity in the region. In Western Kenya, maize (staple) yields at small scale farm level rarely exceed 0.5 t/ ha/ season. These low ... -
Evaluating MERIS-Based Aquatic Vegetation Mapping in Lake Victoria
(2014)Delineation of aquatic plants and estimation of its surface extent are crucial to the efficient control of its proliferation, and this information can be derived accurately with fine resolution remote sensing products. ... -
On reflectionless equi-transmitting matrices
(2014)Reflectionless equi-transmit.ting unitary matrices are studied in connection to matching conditions in quantum graphs. All possible such matrices of size G are described explicitly. It is shown that such matrices form 30 ... -
Use of wheat straw, soybean trash and nitrogen fertiliser for maize production in the Kenyan highlands
(1999)Making best use of available crop residues is an important component of integrated nutrient management. A field study was conducted over two seasons (1997 and 1998) in Kenya that examined use of wheat straw, soybean trash ... -
Indigenous methods for bruchid beetle (Coleoptera: Bruchidae) control in stored beans (Phaseolus vulgaris L.)
(1998)Four bruchid beetle control methods using: corn oil, wood ash, sunning and sieving (S&S) and insecticide (1.6% pirimiphos-methyl/ 0.3% permethrin ), were evaluated to determine their efficacy, effect on germination, seedling ... -
Using spectral subspaces to improve infrared spectroscopy prediction of soil properties
(2015)We propose a method for improving soil property predictions using local calibration models trained on datasets in spectral subspaces rather that in a global space. Previous studies have shown that local calibrations based ... -
Determination of damage threshold of cassava green mite (Acari: Tetranychidae) on different cassava varieties for pest management
(2014)Density threshold has been least considered in efforts to control cassava green mite (CGM) of the Mononychellus species. Nine cassava varieties of varied cyanogenic contents were evaluated for CGM density threshold. Mite ... -
A Simplified Formalism for Computing Growth Rates for Perturbations in Standard Cosmology
(2015)We present a simplified formalism for computing growth rates for perturbations within standard cosmology. We show that converting the perturbation evolution equations into ordinary differen1ia1 equations in terms of ... -
.Fishery, Reproductive and Feeding Biology of common octopus Octopus vulgaris Cuvier 1797, on the Kenyan South-coast
(2015-06-19)Although common octopus, Octopus vulgaris (Cuvier, 1797), catches are increasing globally, lack of information on the species biology and fishery has been a major concern in its management particularly in Kenya. Currently, ... -
Distribution of fusarium species and the occurrence of toxigenic strains of fusarium verticillioides and fusarium proliferatum in Nandi County, Kenya
(2015)Maize is a staple food and feed commodity in Kenya. It is grown on abou t 1.4 million hectares of cropland with an annual estimated yield of 28 tonnes. One of the main concerns of maize production is maize ear rot disease. ... -
Complexification of Mink owskian Spacetime
(2014)It is well known that any two arbitrary observers Sand S' moving relative to each other with a speed v<c in isotropic space see a 4-dimensional real spacetime. We demonstrate that the two observers should naturally see ... -
Student Retention Prediction in Higher Learning Institutions: The Machakos University College Case
(University of Nairobi, 2015)Student retention has become one of the most important priorities for decision makers in higher learning institutions (HLI). Improving student retention starts with a thorough understanding of the reasons behind the ... -
Retrobulbar haemorrhage following blunt trauma in a newly diagnosed haemophilia patient: Case report
(2013)Haemophilia is a congenital disorder of coagulation. It presents with numerous and varied systemic manifestations depending on the severity of coagulation factor deficiency. There are also ocular manifestations ranging ...