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Search Results: 1 - 10 of 481967 matches for " O.M. Kolawole "
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STUDIES ON THE EFFICACY OF BRIDELIA FERRUGINEA BENTH BARK EXTRACT FOR DOMESTIC WASTEWATER TREATMENT
O.M. Kolawole, S.O. Oguntoye, O. Agbede, A.B. Olayemi
Bulletin of the Chemical Society of Ethiopia , 2007,
Abstract: The efficacy of Bridelia ferruginea Benth bark extract in wastewater treatment was investigated. Chemical analysis found the bark to contain potassium, sodium, calcium, magnesium, zinc, manganese, iron and copper. Phytochemical tests revealed the bark to contain tannins, phlobatannins, saponins, alkaloids, and steroids. Comparative studies using varying concentrations (0.5, 1.0, 2.5 and 5.0 % w/v) with alum and ferric chloride showed that the bark extract was effective in the clarification and sedimentation of total solids in the waste water sample. The optimum dose achieved was 2.5 % w/v with a minimum of 24 hours contact time. The total bacteria counts were reduced by 46 % after 24 hours when the extract was used whereas ferric chloride achieved 50 % reduction and alum achieved 55 % reduction under similar conditions. The feasibility of using the bark extract as an additional coagulant is therefore discussed. KEYWORDS: Bridelia ferruginea, Sedimentation, Total bacteria count, Wastewater treatment Bull. Chem. Soc. Ethiop. 2007, 21(2), 205-211.
Studies on the efficacy of Bridelia ferruginea Benth bark extract for domestic wastewater treatment
O.M. Kolawole,S.O. Oguntoye,O. Agbede,A.B. Olayemi
Bulletin of the Chemical Society of Ethiopia , 2007,
Abstract: The efficacy of Bridelia ferruginea Benth bark extract in wastewater treatment was investigated. Chemical analysis found the bark to contain potassium, sodium, calcium, magnesium, zinc, manganese, iron and copper. Phytochemical tests revealed the bark to contain tannins, phlobatannins, saponins, alkaloids, and steroids. Comparative studies using varying concentrations (0.5, 1.0, 2.5 and 5.0 % w/v) with alum and ferric chloride showed that the bark extract was effective in the clarification and sedimentation of total solids in the waste water sample. The optimum dose achieved was 2.5 % w/v with a minimum of 24 hours contact time. The total bacteria counts were reduced by 46 % after 24 hours when the extract was used whereas ferric chloride achieved 50 % reduction and alum achieved 55 % reduction under similar conditions. The feasibility of using the bark extract as an additional coagulant is therefore discussed.
Phytochemical Screening and Antibacterial Activity of Viscum album (Mistletoe) Extracts
S.O. Oguntoye,G.A. Olatunji,O.M. Kolawole,K.I. Enonbun
Plant Sciences Research , 2013,
Abstract: Viscum album is a green parasitic plant belonging to the family of Loranthaceae. It grows as a partial parasite on the branches of many decidous lemon trees especially apple and has various ethnomedical uses. Phytochemical screening has shown the presence of Alkaloids, Carbohydrates, Tannins and Flavonoids. Phytosterols are scanty. Thin-layer chromatography of the ethanolic extract (Petroleum spirit and Diethyl ether, 2:1) showed four spots, while the aqueous extract (Petroleum spirit and Diethyl ether, 2:1) showed the presence of three spots. The ethanolic and aqueous crude extracts inhibited the growth of Klebsiella aerogenes, Proteus sp., Escherichia coli and Pseudomonas aeruginosa. Gentamycin and Cloxacillin did not exhibit any activity against Pseudomonas aeruginosa.
Epidemiological patterns of human immunodeficiency virus and herpes simplex virus co-infection in ibadan, nigeria
O.M Kolawole, F.D Adu, O.O Agbede, A.A Oni, R.A Bakare
African Journal of Biomedical Research , 2008,
Abstract: There is no doubt that the greatest health problem threatening the human race these times is the HIV/AIDS pandemic. The greatest burden of this scourge is in sub-saharan African. This has undoubtedly increased the incidence of opportunistic infection like herpes simplex virus infection. This study investigated the epidemiological pattern of HIV and HSV co-infection in patients attending the sexually Transmitted Diseases Clinic of University College Hospital, Ibadan. The findings revealed that a total of 63 patients presented classical genital ulceration during the period of study. There was statistical significance between the age group of the patients and their seropositivity status (x2= 3.86, P< 0.05). The epidemiological studies also revealed that there was statistical significant difference in development of genital herpetic ulceration and their HIV seropositivity status (x2= 39.35, P< 0.05). There was also a significant difference between herpes simplex virus CPE formation from genital lesion and the HIV seropositivity status of the patients (x2= 10.96, P< 0.05). Also, there was statistical significant difference in HSV CPE formation from genital lesions of HIV seropositive patients already on antiretroviral therapy (x2= 4.06, P< 0.05). Ballooning degeneration of cells indicative of CPE of HSV in vero cell lines were detected within 2-3 days post inoculation. The HIV and HSV Co-infection pattern among patients attending Sexually Transmitted Diseases Clinic in University College Hospital, Ibadan is therefore discussed. (Afr. J. Biomed. Res. 11: 23 -26)
Extracellular calcium-sensing receptor: structural and functional features and association with diseases
Hauache, O.M.;
Brazilian Journal of Medical and Biological Research , 2001, DOI: 10.1590/S0100-879X2001000500004
Abstract: the recently cloned extracellular calcium-sensing receptor (car) is a g protein-coupled receptor that plays an essential role in the regulation of extracellular calcium homeostasis. this receptor is expressed in all tissues related to this control (parathyroid glands, thyroid c-cells, kidneys, intestine and bones) and also in tissues with apparently no role in the maintenance of extracellular calcium levels, such as brain, skin and pancreas. the car amino acid sequence is compatible with three major domains: a long and hydrophilic aminoterminal extracellular domain, where most of the activating and inactivating mutations described to date are located and where the dimerization process occurs, and the agonist-binding site is located, a hydrophobic transmembrane domain involved in the signal transduction mechanism from the extracellular domain to its respective g protein, and a carboxyterminal intracellular tail, with a well-established role for cell surface car expression and for signal transduction. car cloning was immediately followed by the association of genetic human diseases with inactivating and activating car mutations: familial hypocalciuric hypercalcemia and neonatal severe hyperparathyroidism are caused by car-inactivating mutations, whereas autosomal dominant hypoparathyroidism is secondary to car-activating mutations. finally, we will comment on the development of drugs that modulate car function by either activating (calcimimetic drugs) or antagonizing it (calcilytic drugs), and on their potential therapeutic implications, such as medical control of specific cases of primary and uremic hyperparathyroidism with calcimimetic drugs and a potential treatment for osteoporosis with a calcilytic drug.
Reflections on the Challenges of Anthropology in Contemporary Times and Future Prospects: The Douala Experience
O.M Savage
African Anthropologist , 2007,
Abstract: No
Infectious Dropsy of Hybrid Catfish Fingerlings from Nigeria
O.M. Edun
Journal of Animal and Veterinary Advances , 2012,
Abstract: Dropsy was observed in hybrid catfish (a cross between Clarias gariepnus and (Heteobranchus longifilis) fingerlings from African Regional Aquaculture Centre (ARAC), Aluu, Nigeria. It is characterized by swelling of the body of the fish in the ventral region with yellowish watery fluid. Aeromonas hydrophila was recovered from the diseased and dead fish. Pathogenicity of Aeromonas hydrophila isolate was also determined. Clinical manifestation of the disease was observed in the hybrid catfish fingerlings 48 h post inoculation followed by death after 6 days. A. hydrophila was also re-isolated from the experimental fish. Prevention of further spread of the disease was achieved by sanitary measures, disinfection of facilities and environmental control.
The Use of Wood By-Products for Making Concrete Blocks
O.M. Ogundipe
Journal of Engineering and Applied Sciences , 2012,
Abstract: In this research, sawdust concrete with nominal mixes 1:1:2, 1:1 :3 and 1:2:4 were subjected to the following tests; particle size distribution, compressive strength, water absorption and density. This was done to examine the suitability of wood by-products for concrete blocks production. The 28-day compressive strength of nominal mixes 1:1:2 and 1:1 :3 were 18.33 and 8.78N mm 2, respectively, while their 28-day absorption values were 5.69 and 8.97%, respectively and the densities were 2133 and 2914 kg m 3. These values indicated that wood by-products (sawdust) could be used for concrete blocks production. The successful utilization of wood by-products helps not only in reducing the amount of wastes requiring disposal but also in eliminating the pollution of the environment caused by burning the wastes.
Repair of Extensive Composite Alar Defects with Single Stage Nasolabial Turnover Flap and Auricular Composite Graft
O.M. Oluwatosin
Nigerian Journal of Surgical Research , 2001,
Abstract: Extensive and total (through and through) loss of ala or lobule of the nose as seen in severe traumas and neglected tumours should be replaced by the three anatomical layers of skin, cartilage and vestibular lining. A technique of nasolabial turnover flap transfer covered by a two layered auricular chondrocutaneous graft is described for reconstructing such total losses >1.5 cm. The method of survival of large volume chondrocutaneous grafts is described as well as the advantages of this technique over other alternatives. (Nig J Surg Res 2001; 3: 133 – 138) KEY WORDS: Alar defects, Repair
Features of choice of innovative strategies by industrial enterprises
O.M. Derykolenko
Marketing ì Mened?ment Innovacìj , 2012,
Abstract: In article features of the choice of innovative strategy by the industrial enterprises are investigated. It is offered to define innovative strategy depending on the extent of risk, and also from existence of available funds at the enterprise and the level of demand on these innovations.
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