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A transition model for estimating academic survival through cohort analysis
(Taylor & Francis, 1986)
To evolve an efficient system, educational activities need to be carefully coordinated, for which an abstract realization of the real system is essential. A transition model is one which describes the stocks and flows of ...
Occurrence of Simulium (Edwardsellum) damnosum s.l. (Diptera: Simuliidae) in nine river systems in Kenya
(1986)
Six river systems in Kenya were found to harbor Simulium damnosum Theobald s.l. Two CDC light traps, during 12-h overnight collections at the Isiukhu and Nzoia rivers, caught 3 and 116 adult S. damnosum s.l., respectively. ...
Comparative dehydrogenase activity during the ontogenesis of the yellow fever mosquito Aedes (Stegomyia) aegypti L. (diptera:culicidae)
(Elsevier, 1980)
α-GPDH in most active in adults, LDH in third instar larvae, and MDH in third instar larvac.
During pre-pupal growth, LDH is the most active enzyme, followed by MDH and α-GPDH; while during post-pupal growth, MDH is ...
Toluene-3,4-dithiol (H2tdt) complexes of group 5B halides: observations of lone-pair stereochemical activity and redox behaviour ― Crystal and molecular structures of [AsCl(tdt)] and [PPh4][Sb(tdt)3]
(University of Nairobi, 1985)
Les deux composés du titre cristallisent dans le système monoclinique, groupe P21/c et P21 respectivement. Dans le premier composé l'atome As a une coordinence de 3 et l'atome Sb dans le second possède une coordination ...
Flavonoids from the seed pods of Tephrosia pumila
(University of Nairobi, 1989)
Inaddition to the known pumilaisoflavones A and B two further isoflavonoids have been isolated from the seed pods of Tephrosia pumila collected in Ethiopia. These have been characterized, on the basis of spectral analysis, ...
Tolerance of Kenyan Schistosoma mansoni to oxamniquine.
(University of Nairobi,, 1987)
Although 30 mg/kg oxamniquine produced high levels (85.5 to 99.5%) of egg reduction in Kenyan children infected with Schistosoma mansoni after a single oral treatment, cure rates from children at Mwea in Kirinyaga district ...
Temporal fluctuations of seasonal rainfall patterns in East Africa
(1984)
In order to investigate temporal fluctuations in the seasonal rainfall over East
Africa, monthly rainfall records from about 100 stations during" the period 1931 -75 were subjected
to harmonic analysis on the yearly ...
Simultaneous determination of iron(III) and vanadium(V) with N-phenylcinnamohydroxamic acid and thiocyanate by extraction-spectrophotometry
(University of Nairobi, 1985)
N-Phenylcinnarnohydroxamic acid (PCHA) reacts with iron(III) and vanadium(V) in the presence of thiocyanate to form water-insoluble orange and green complexes, respectively. The iron(III)-PCHA and vanadium(V)-PCHA-thiocyanate ...
Population dynamics of pine woolly aphid, Pineus pini (Gmelin) (Hemiptera: Adelgidae), in Kenya
(1980)
The population dynamics of Pineus pini (Gmel.) was examined in two locations in the Kenya Highlands where the mean annual precipitation ranges from 620 to 1400 mm. Variations in population densities were related to rainfall. ...