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Now showing items 1291-1300 of 1307
Adsorption Of Malachite Green From Aqueous Solutions Onto Rice Husks: Kinetic And Equilibrium Studies
(University of Nairobi, 2017)
A study was done to evaluate the removal of a cationic dye from simulated waste water onto rice husks (RH). Spectroscopic methods such as FTIR and SEM/EDX were used for adsorbent characterization. Experimental dependency ...
Pathophysiological effects of Neem (Azadirachta indica) derivatives to Rhipicephalus appendiculatus, the tick vector for Theileriosis (East Coast Fever)
(University of Nairobi, 2017)
Theeffects of 2 Neem derivatives, Neem oil (NO) and Neem Seed Powder (NSP),on various physiological parameters of the brown ear tick, Rhipicephalus appendiculatus,the vector for Theileria parva. ...
A Survey Of Traditional Medicinal Uses Of Catha Edulis (Celastraceae) In Meru And Eembu Counties Of Kenya.
(University of Nairobi, 2016)
Catha edulis (qat) is an evergreen tree or shrub whose young leaves and stems are widely chewed in Eastern Africa. The
aim of the present study was to document ethnomedicinal value of Catha edulis as used traditionally ...
Isoflavones and Rotenoids from the Leaves of Millettia oblata ssp. teitensis
(University of Nairobi, 2017)
: A new isoflavone, 8-prenylmilldrone (1), and four
new rotenoids, oblarotenoids A−D (2−5), along with nine known
compounds (6−14), were isolated from the CH2Cl2/CH3OH
(1:1) extract of the leaves of Millettia oblata ...
Naphthalene Derivatives from the Roots of Pentas parvifolia and Pentas bussei
(University of Nairobi, 2016)
The phytochemical investigation of the CH2Cl2/MeOH (1:1) extract of the roots of Pentas parvifolia led to the isolation of three new naphthalenes, parvinaphthols A (1), B (2), and C (3), two known anthraquinones, and five ...
A Neoarchean paleomagnetic pole from the Kisii Series of western Kenya: Implications for crustal mobility
(University of Nairobi, 2016)
The Kisii Series lavas of western Kenya were the target of a paleomagnetic study. The Kisii Series is a volcano-sedimentary sequence dated to 2531 ± 3 Ma (U–Pb) that rests unconformably over the Mesoarchean–Neoarchean ...
Near Real-time Tropospheric Water Vapour Profiling Using A Ground-based GPS Receiver
(University of Nairobi, 2017)
This article presents a remote-sensing tool employing an artificial neural networks algorithm for near real-time determination of the relative humidity (RH) profile above a site using global positioning system (GPS) data ...
Compositional Analysis and Optical Properties of Co Doped Tio2 Thin Films Fabricated by Spray Pyrolysis Method for Dielectric and P Hotocatalytic Applications
(University of Nairobi, 2017)
Abstract Cobalt doped TiO2 thin films (CTF) deposited by spray pyrolysis has been studied. The compositional analysis has been done using RBS method, while optical spectroscopy has been done by measuring the transmittance ...
E-waste Management in Kenya: Challenges and Opportunities
(University of Nairobi, 2015)
The production and use of Electrical and Electronic Equipment (EEE) continues to grow in both developing and developed countries therefore increasing the amount of Waste Electrical and Electronic Equipment (WEEE) at its ...
Disappearing medicinal plants in Mt. Kenya forests , Kenya: a case study of East African green heart ( Warburgia ugandensis sprague)
(2013)
Natural disturbances and human activities are significantly affecting indigenous trees species in forests.
Warburgia ugandensis is a plant highly valued for its medicinal properties, timber and fuel among other uses.
Many ...