Search
Now showing items 241-250 of 368
Preparation and Characterization of Indium and Gallium doped Transparent ZnO films for Solar cell Applications
(University of Nairobi, 2018)
In this work, the effect of indium (In) and gallium (Ga) dopants on the structural, optical and
electrical properties of ZnO thin films was studied. ZnO thin films were deposited on glass substrates
at 400°C using the ...
Effects of Substrate Radial-Position Relative to the Sputter-Gun Axis on the Electrical, Optical and Structural Properties of ZnO Thin Films Deposited by Reactive Direct Current Magnetron Sputtering
(University of Nairobi, 2018)
ZnO thin films were deposited using reactive direct current (dc) magnetron sputtering on glass
substrates placed at seven variable radial positions (-1, 0, 1, 2, 3, 4 and 5 cm) relative to the
sputter-gun (target) axis. ...
Hibiscus Extract Mitigates Salt Induced Carotid Adventitial Changes In Rats
(University of Nairobi, 2018)
The tunica adventitia is an active vascular compartment that actively participates in modulation of
vascular structure, function and pathophysiology. Adventitial thickness has recently been accepted as a ...
Compositional and Thickness Effects on the Optical Properties of Zinc– Doped Selenium–Antimony Thin Films
(University of Nairobi, 2018)
Chalcogenide system of antimony (Sb)-selenium (Se)-zinc (Zn) system is a promising semiconductor for phase change memory devices due to its thermal stability and low power consumption. The study investigated the effect of ...
Morphology of the Left Atrial Appendage: Prevalence and Gender Difference in a Kenyan Population
(University of Nairobi, 2018)
ntroduction The left atrial appendage is the site of origin of thrombi in 90% of
cardioembolic stroke. Although literature reports a higher risk of cardioembolic stroke
among blacks and females, it is unclear whether ...
Effects of Teachers’ Participation in Management of Physical and Material Resources on Their Motivation, Kenya
(University of Nairobi, 2018)
Motivation is one of the many factors that contribute to employee
performance. Teachers’ motivation in public secondary schools has been
highlighted as one of the factors that contribute to employee performance
(Matoke, ...
Teachers’ Participation in Management of Financial Resources and Motivation
(University of Nairobi, 2018)
Achieving transformational knowledge based economy as provided in Kenya’s Vision 2030 requires motivated teachers.
There is however a dearth of literature on the effects of teachers’ participation ...
Class Teachers’ Role in Maintaining Students’ Discipline in Secondary Schools in Teso South District, Kenya
(University of Nairobi, 2018)
Indiscipline in secondary schools has been a national issue in Kenya. The head teachers have been blamed for
incompetence disregarding other factors. The paper addresses the role of class teachers as one of the stakeholders ...
Profiling of Microbial Content and Growth in Fermented Maize Based Products From Western Kenya
(University of Nairobi, 2018)
In most parts of Africa, the process of fermentation is not controlled and does not adhere to good manufacturing practices, therefore spoilage and pathogenic microorganisms can alter the quality of the end product and may ...
Drying Modelling, Moisture Diffusivity and Sensory Quality of Thin Layer Dried Beef
(University of Nairobi, 2018)
The objective of the present study was to determine the drying kinetics, moisture diffusivity and sensory quality of convective air dried beef. The effect of temperature of drying (30-60°C) and thickness of samples
(2.5-10 ...