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Now showing items 61-70 of 414
Some aspects of the anomalous off-season rainfall over east Africa during the December February season
(1998)
For effective planning, development and management of rainfall related
social-economic activities there is a need to understand the characteristics of the
rainfall variability during the rainy and dry seasons. East Africa, ...
Identification of some of the host-derived attractant Compounds for adult tick, rhipicephalus appendiculatus from Cattle ears.
(1997)
Control of ticks and tick-borne diseases is of paramount importance to the development
and sustanability of the livestock industry in Africa. It is especially essential to control the brown
ear tick, Rhipicephalus ...
Kinetic study of acid-catalysed rearrangements of 1,2-oxazines
(1993)
A kinetic study of acid-catalysed rearrangement of 6-ethoxy-5,6-
dihydro-3-para-substituted phenyl-4H-l ,2-oxazines (9) in methanol (MeOH),
cyanomethane (MeCN) and in dimethylsulfoxide (M~SO) to 3,4-dihydro-2-
methoxy ...
Geophysical and hydrogeological investigations for groundwater in the lake Kenyatta settlement scheme, Lamu district, coast province, Kenya.
(1993)
This thesis presents results of geophysical and hydrogeological investigations
for groundwater' in the Lake Kenyatta settlement scheme: Lamu District, Coast
Province: Kenya. During the Pleistocene; the area was a beach ...
Essential oils of some plants of the family capparidaceae. as repellents for the brown ear tick, rhipicephalus appendiculatus and the maize weevil, sitophilus zeamais.
(1995)
This thesis describes a chemical and bioactivity study of the
essential oils of five tropical plant species of the family
capparidaceae, namely Boscia angustifolia A. Rich var.
angustifolia, Boscia mossambicensis Klotzsch, ...
Stabilization of polyaniline films by Surface attachment of oxidizable Substrates
(1997)
Cyclic Voltammetry was used to study the Electrochemical properties of PAminophenol
on a Polyaniline modified carbon electrode surface. The resilts reveal
reversible redox waves. The quinone derivatives formed frop ...
Oviposition and feeding allelochemicals for chilo partellus from sorghum and maize cultivars; bioassay, isolation and characterization:
(1994)
A study was carried out to isolate and identify the chemicals from sorghum and maize
that determine the oviposition and feeding responses, respectively, of the moth and larvae of
Chilo partellus a serious pest of these ...
Assessment of human exposures to natural sources of radiation in Kenya
(1999)
Exposures of human beings to the natural background radiation in Kenya are
assessed using measured activity concentrations of natural radionuc1ides and
dose conversion factors; The sampling locations for geological ...
Spectral analysis of the horizontal loop electromagnetic profiling data over a conductive half-plane
(1992)
Most interpretive methods in geophysical prospecting involve
the analysis of a single signal which may be a spatial or time
domain record of a given deterministic geophysical variable
representing the anomaly of interest. ...