Faculty of Science: Recent submissions
Now showing items 101-120 of 317
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Pesticide management practices among rural market gardening farmers near Harare, Zimbabwe
(Academy of Science of South Africa, 2016-04-19)In 2014, we carried out a survey in Chinamhora and Chihota communal lands on the outskirts of Harare city, with the aim of understanding pesticide management practices among market gardening farmers. The farmers grew ... -
Magnetic nanopore composite beads for simultaneous removal of organic and inorganic pollutants in highly acidic water
(2016-10)A novel magnetic nanocomposite bead was synthesised for the simultaneous removal of cationic, anionic and organic pollutants removal in highly acidic water. Copper, chromium (III), phosphate and toluene were used as ... -
Distance measures in graphs
(2016-10)This thesis details the results of an investigation of bounds on four distances measures, namely, radius, diameter, the Gutman index and the edge-Wiener index, in terms of other graph parameters, namely, order, irregularity ... -
Preparation of activated carbon from tobacco stalks using microwave assisted chemical activation for water purification
(2016-11)Tobacco crop is an economically important crop. The remaining stalk after reaping the leaf however presents environmental pollution challenges. The carbonaceous nature of the stalk on the other hand makes it a promising ... -
Influence of inflammatory markers on HIV pathogenesis
(2016-10)HIV infection can now be treated effectively with combination antiretroviral medications, and mortalities due to AIDS have been greatly reduced. The increase in the number of deaths and incidences of heart and liver diseases ... -
In Vitro assessment of the probiotic properties of lactic acid bacteria isolated from sorghum mahewu
(2016-10)Fermentation of cereal grains is associated with beneficial microorganisms, referred to as probiotics. Probiotics are live microorganisms which confer health benefits to host organisms when consumed in adequate amounts. ... -
Evaluation of the role of ATP-binding cassette (ABC) transporters on chlorhexidine digluconate biocide activity in nosocomial pathogens
(2016-10)The use of biocides against bacterial infections over the years has brought numerous benefits to the health sector, but a disturbing prospect of biocide resistance to nosocomial pathogens is emergent. The evolution of ... -
The limnological status of the Gwebi river, Zimbabwe
(2016-10)The study aimed at assessing the limnological status of Gwebi River. Sampling was carried out from March to August 2015 on eight sites along Gwebi River. Five classes of land use/ land cover namely; woodland, grassland, ... -
Release of 7-methyIguanine residues whose imidazole rings have been opened from damaged DNA by a DNA glycosylase from Escherichia coli
(Oxford University Press, 1979-05)Double-stranded DNA containing 7-methylguanine residues whose imidazole rings have been opened, i.e. 2, 6-diamino-4-hydroxy-5—N-methylformamidopyrimidine residues, may be prepared by treatment of DNA with dimethyl sulphate ... -
Modelling the impact of climate variability and change on human health and diseases
(2016-11)Malaria is a life-threatening disease caused by parasites that are transmitted to humans through the bites of infected female mosquitoes. Almost half of the world’s population is at risk of malaria. Schistosomiasis is ... -
Synthesis and characterization of layered double hydroxides and their application in asprin intercalation
(2016-11)Aspirin delivery by layered double hydroxides (LDHs) was extensively studied due to the capacity of these solids to intercalate it and to control its release rate. In this work, LDH and LDH-aspirin hybrids were synthesized ... -
Assessment of levels of naturally occuring radionuclides at iron mining and processing sites in the Midlands Province of Zimbabwe.
(2016-11)Mining and mineral operations have been associated with exposures of Naturally occurring radioactive materials. A study was carried out to assess the activity concentration of naturally occurring radionuclides in iron ... -
Bionomics of malaria vectors in Mutare and Mutasa districts of Manicaland province, Zimbabwe
(2016-10)Bionomics of malaria vectors including species composition, resting and biting behaviour and insecticide resistance are important for insecticide-based malaria control and interventions. The lack of data on malaria vector ... -
Immunological consequences of antihelminthic treatment in preschool children exposed to urogenital schistosome infection
(Hindawi Publishing Corporation, 2013-05-13)Urogenital schistosomiasis, due to Schistosoma haematobium, is endemic in sub-Saharan Africa. Control is by targeted treatment with praziquantel but preschool age children are excluded from control programs. Immunological ... -
Regulatory and Activated T cells in human schistosoma haematobium infections
(PLoS One, 2011-02-10)Acquired immunity against helminths is characterised by a complex interplay between the effector Th1 and Th2 immune responses and it slowly manifests with age as a result of cumulative exposure to parasite antigens. Data ... -
Group 2 Innate Lymphoid Cell Proportions Are Diminished in Young Helminth Infected Children and Restored by Curative Antihelminthic Treatment
(PLoS, 2015-03-20)Group 2 Innate lymphoid cells (ILC2s) are innate cells that produce the TH2 cytokines IL-5 and IL-13. The importance of these cells has recently been demonstrated in experimental models of parasitic diseases but there is ... -
Effect of treating Schistosoma haematobium infection on Plasmodium falciparum-specific antibody responses
(BioMed Central, 2008-11-17)The overlapping geographical and socio-economic distribution of malaria and helminth infection has led to several studies investigating the immunological and pathological interactions of these parasites. This study focuses ... -
Efficacy of integrated school based de-worming and prompt malaria treatment on helminths -Plasmodium falciparum co-infections: A 33 months follow up study
(BioMed Central, 2011)The geographical congruency in distribution of helminths and Plasmodium falciparum makes polyparasitism a common phenomenon in Sub Saharan Africa. The devastating effects of helminths-Plasmodium co-infections on primary ... -
Knowledge attitudes and practices of grade three primary school children in relation to schistosomiasis, soil transmitted helminthiasis and malaria in Zimbabwe
(BioMed Central, 2011)Helminth infection rates in grade three children are used as proxy indicators of community infection status and to guide treatment strategies in endemic areas. However knowledge, attitudes and practices (KAP) of this target ... -
Downregulation of MIP-1α/CCL3 with praziquantel treatment in Schistosoma haematobium and HIV-1 co-infected individuals in a rural community in Zimbabwe
(BioMed Central, 2009-10-23)Chemokines have been reported to play an important role in granulomatous inflammation during Schistosoma mansoni infection. However there is less information on their role in Schistosoma haematobium infection, or on the ...
