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One-sided tests in shared frailty models
(University of Nairobi, 2007)
Tests for the presence of heterogeneity in frailty models use an alternative hypothesis in which the heterogeneity parameter is subject to an inequality constraint. As a result, the classical likelihood ratio asymptotic ...
Records from the dry lands of Kenya, with a description of Didymodon revolutus var. nov. africanus (Pottiaceae).
(2007)
Pneumatocele, a special form of lung injury, is characterized by intrathoracic images of cavities detected on X-ray films. These cavities develop immediately after a trauma of the thorax, disappear rapidly and have a ...
Quasi-experimental evaluation of a national primary school HIV intervention in Kenya
(2007)
This study examined the impact of a primary-school HIV education initiative on the knowledge, self-efficacy and sexual and condom use activities of upper primary-school pupils in Kenya. A quasi-experimental mixed ...
A Grid Service Matrix Model for Resource Scheduling in Grid Computing Environments
(2007)
A grid computer consists of shared computing resources that are presented to the user
as a single powerful computing facility. The shared computing resources have
independent autonomous ownership. The vision in grid ...
Frequency and severity of drought in the LakeVictoria region (Kenya) and its effects on food security
(University of Nairobi, 2007)
Using monthly and seasonal precipitation data for the period 1961–1999, we established
drought frequency and severity in relation to food security in the Lake Victoria region in Kenya. We
used percentiles together with ...
Variation in aggressiveness of Phaeoisariopsis griseola and angular leaf spot development in common bean
(2007)
Aggressiveness of fifteen isolates of Phaeoisariopsis griseola and variations in angular leaf spot symptom
development in common bean were studied. The isolates were selected based on their virulence and genetic
differences ...
Chemical composition and antimicrobial activity of the essential oil of Ocimum gratissimum L. growing in Eastern Kenya
(2007)
Hydro-distilled volatile oils from the leaves of Ocimum gratissimum L. (Lamiaceae) from Meru district in
Eastern Kenya were analysed by gas chromatography-mass spectrometry (GC-MS) and also evaluated
for antimicrobial ...
Transgenic mosquitoes and the fight against malaria: managing technology push in a turbulent GMO world.
(2007)
Genetic modification (GM) of mosquitoes (which renders them genetically modified organisms, GMOs) offers opportunities for controlling malaria. Transgenic strains of mosquitoes have been developed and evaluation of these ...
Relationship Between ENSO parameters and the Trends and Periodic Fluctuations in East African Rainfall
(2007)
The study investigated the relationship between ENSO parameters and the trends and periodic fluctuations in
the East African seasonal and annual decadal rainfall. The monthly rainfall data for the period 1931–2004
was ...