Now showing items 41-49 of 49
Volcanic Associations In The Gregory Rift Valley, East Africa
(University of Nairobi, 1969-10)
THE Tertiary to Recent volcanic rocks associated with the Gregory Rift Valley cover large areas in Kenya and northern Tanzania, and the Miocene volcanic and intrusive centres of eastern Uganda belong to the same sodic ...
Effect of different prey species on the development and fecundity of the predacious mite, Amblyseius gossipi (Acarina: Phytoseiidae)
Under laboratory conditions of approximately 26.5–28.5° and 60–70% RH, the immature stages of the female Amblyseius gossipi Elbadry were completed in 2.9, 3.5 and 4.1 days when developed on Oligonychus mangiferus (R. & ...
Paleomagnetic studies in Kenya
(University of Nairobi,, 1967)
Diurnal Variation of Total Electron Content of the Ionosphere Over Nairobi
(University of Nairobi, 1965-05)
THE ionospheric research station at University College, Nairobi, was set up during 1963 in time to commence observations for the I.Q.S.Y. The station has geographic co-ordinates 36.82° E., 1.32° S. and is 10.5° S. of the ...
Chemosterilants With the Mosquitoes Culex Pipiens Fatigans(wiedemann and Anopheles Gamlae (Giles)
(University of Nairobi, 1968)
The possibility of control or eradication of an insect species by the release of overwhelming number of sterile males has been proven by experiment. On social ground it is considered that chemosterilants (chemicals capable ...
Some Statistical Properties Of The Ground Diffraction Patterns Of Vertically Reflected Radio Waves
(University of Nairobi, 1966-02)
This paper describes the results of a vertical incidence fading amplitude experiment vising an array of seven receiving aerials. The purpose of the experiment was to test certain assumptions in the correlation analysis of ...
The F-Region Equatorial Irregularity Belt As Observed From Scintillation Of Satellite Transmissions
(University of Nairobi, 1969-01)
Scintillation occurrence studies have been made on 40/41 MHz recordings of satellites BE-B and BE-C at Addis Ababa, Nairobi and Dar-es-Salaam. The results are presented in the form of latitude plots for the different ...
Effectiveness of the predacious mite, Amblyseius gossipi as a predator of three tetranychid miets (Acarina: Phytoseiidae)
Test mites of Amblyseius gossipi Elbadry were confined to broad bean leaves in the laboratory at 26.5–28.5 C°. Adults A. gossipi fed readily on both adults and immatures of the spider mites Oligonychus mangiferus (R. & P.) ...