Faculty of Science: Recent submissions
Now showing items 61-80 of 312
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Heavy metal air pollution study, using a Moss Bio Monitoring technique
(2017-11-16)Air pollution is increasingly becoming a problem in developed and developing countries. As a corrective measure, constant air monitoring has been done using conventional techniques which are costly and time consuming hence ... -
A study of the limnology and ecology of Mazvikadei Reservoir
(2017-11-17)An assessment of the limnology of Mazvikadei reservoir was carried out from May to October 2015. The main objective of the study was to determine whether limnology of the reservoir has changed since the filling phase. The ... -
Modelling spatial distribution of Tsetse (Diptera: Glossinidae) in Masoka area, an unexplored part of Mbire District, Zimbabwe
(2017-11-17)A study was conducted from March 2015 to December 2015 in order to model the distribution of two savannah species of tsetse (Glossina sensu stricto), Glossina morsitans morsitans and G. pallidipes in the Masoka area of the ... -
Food and foraging ecology of Limnothrissa Miodon in the Sanyati Basin, Lake Kariba
(2017-11-14)The aim of the research was to study the feeding behaviour of Limnothrissa miodon (kapenta) with reference to food items in the Sanyati Basin of Lake Kariba. Sampling was carried out from June to December 2015. Fish samples ... -
Knowledge Management System Generic models and architectures: Enhancing uniformity and interoperability of Knowledge Management Systems
(2017-10-12)Despite Knowledge Management becoming important in creating a competitive advantage for organizations, the use of technology in the area has been haphazard partly due to a scarcity of technological models and architectures. ... -
Speciation and Persistence of Tetracycline Antibiotics in the Aquatic Environment: Characterization in terms of a Linear Rate Model
(2017-10-10)The present work aimed at studying the degradation of tetracycline antibiotics in the aquatic environment with a view of arriving at a linear rate model taking into account microbial, photolytic and hydrolytic degradation, ... -
Isolation, purification and characterisation of antiproliferative phytochemicals from Dolichos kilimandscharicus (Fabaceae)
(2017-11)Plants are a source of over a quarter of the prescription drugs currently in use worldwide. Coupled with human perception that they provide a safe disease treatment regime, plant derived compounds have become the mainstay ... -
Synthesis and modification of Zeolites for the removal of heavy metals from water
(2017-11-14)Zеolitеs wеrе synthеsisеd using thе hydrothеrmal synthеsis mеthod. Thе synthеsisеd zеolitеs wеrе initially activatеd with sodium chloridе and latеr functionalisеd using barium (barium sulphatе) and coppеr (coppеr sulphatе). ... -
Knowledge management system generic models and architectures: Enhancing uniformity and interoperability of knowledge management systems
(2017-11-16)Despite Knowledge Management becoming important in creating a competitive advantage for organizations, the use of technology in the area has been haphazard partly due to a scarcity of technological models and architectures. ... -
Isolation of norgestrel in contraceptive tablets for use as an analytical standard in its quantification in the aquatic environment
(2017-11-16)Steroidal hormones, natural and synthetic, have become a global concern due to the serious effects they pose to the aquatic environment. Although these hormones are found in low dosage levels in contraceptives, it is the ... -
The Gutman Index and the Edge-Wiener Index of Graphs with given Vertex-Connectivity
(University of Zielona Góra, 2015-12-30)The Gutman index and the edge-Wiener index have been extensively investigated particularly in the last decade. An important stream of re- search on graph indices is to bound indices in terms of the order and other parameters ... -
Agromizid Leafminer infestation of different tomato (Lycopersicon lycopersicum) varieties and an assessment of the effectiveness of Azadirachta indica extracts as a management technique.
(2017-11-17)The relative susceptibilities of 14 tomato varieties (“Rodade”, “Nemonetta”, “Rio Grande”, “Season Red”, “Little Wonder”, “Money Maker”, “RVF”, “Cal-J”, “RVFN”, “Star 9065”, “Floradade”, “Rodade Plus”, “Heinz 1370” and ... -
Modeling Habitat Selection for Southern White Rhino (Ceratotherium Simum Simum) in Matopos National Park
(University of Zimbabwe, 2016-06)In this study we modeled wet and dry season habitat selection of the Southern white rhinoceros (Ceratotherium Simum Simum) in Matopos National Park. We tested whether wet and dry season habitat selection was influenced by ... -
Modelling spatial variability of soil nitrogen using geostatistical methods and remote sensing
(2016-06)The aim of this study was to explore the use of geostatistical approaches involving remote sensing data to model and map soil nitrogen variability for use in precision agriculture. Precision agriculture is a management ... -
Accuracy assessment of MODIS fire products in African Savanna woodlands
(University of Zimbabwe, 2016-06)Fire poses a continuous threat to forest ecosystems and can dramatically reduce valuable timber species in forest woodland areas. The occurrence of fire in Baikiaea plurijuga woodlands warrants the need of an active and ... -
Assessment of the impacts of artisanal small scale gold mining on environmental governance within the Mazowe catchment
(2016-06)This study focused on assessing the impacts of artisanal small-scale gold activities on the environmental governance of the Mazowe catchment. A representative sample of 32 respondents was selected from three sites with the ... -
Application of citrus sinensis solid waste as a pseudo- catalyst for free cyanide conversion under alkaline conditions
(BioResources, 2013-05-08)In this study, Citrus sinensis (C. sinensis) solid waste was used to catalyze the conversion of free cyanide (F-CN) under alkaline conditions; conditions which represent most industrial wastewater containing F-CN. Acid ... -
Unsteady contact melting of a rectangular cross section material on a flat plate.
(American Institute of Physics, 2008-10-06)The work in this paper concerns a mathematical model of the contact melting process of a rectangular material in contact with a hot plate. The problem is described by a coupled system of heat equations in the solid and ... -
A Note on the Discrete Spectrum of Gaussian Wells (I): The Ground State Energy in One Dimension
(Hindawi Publishing Corporation, 2016-02-07)The ground state energy 𝐸 0(𝜆) of 𝐻 𝜆 = − 𝑑 2 /𝑑𝑥 2 − 𝜆 𝑒 −𝑥2 is computed for small values of 𝜆 by means of an approximation of an integral operator in momentum space. Such an approximation leads to a transcendental ... -
Speciation and persistence of tetracycline antibiotics in the aquatic environment: Characterization in terms of a linear rate model
(2017-08)The present work aimed at studying the degradation of tetracycline antibiotics in the aquatic environment with a view of arriving at a linear rate model taking into account microbial, photolytic and hydrolytic degradation, ...
