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Search Results: 1 - 10 of 182287 matches for " E.U. Ubeku "
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Substation Earthing Grid Safety Analysis
E.U. Ubeku,F. Odiase
International Journal of Electrical and Power Engineering , 2012,
Abstract: This study presents a user interactive computer program for the design and configuration arrangement of a 33/11 kV substation earthing grid system within restricted areas such as the cases of Benin city injection substations. The study is aimed at the creation of awareness on safe substation earthing grid system design. The provision of earthing systems is not only for the protection and proper functioning of substation equipments, but also for the safety of personnel during earth faults and lightning strikes. Standard expressions taken from IEEE 80 and 2000 are used in writing an interactive programme for the simulation of touch, step and mesh potentials of substation earthing grid, which are the most important factors for personnel safety in and around substations. The interactive program follows an algorithm that gives the final design configuration and the total required conductor length that satisfied the criterion for safety.
The editing of Malay manuscripts and textual criticism
E.U. Kratz
Bijdragen tot de Taal-, Land- en Volkenkunde , 1981,
Abstract:
Pollution Assessment of the Ebute Meta Creek Impacted by Domestic Sewage Lagos, Nigeria
E.U. Etim
Research Journal of Environmental and Earth Sciences , 2012,
Abstract: The ecological and economic significance of creeks is of global importance to coastal areas. These advantages have been underutilized in many developing countries resulting in considerable pollution of its water ways. This study investigates the degree of pollution of the Ebute Meta creek system Lagos, southwestern Nigeria. Surface water, ground water, soil, sediment and plant samples were collected between the months of May and July 2011. Average surface water DO (2.39±1.45 mg/L), BOD (167±53 mg/L), COD (329±106 mg/L), NO3 - (28.3±3.67 mg/L), NH3 (22.3±4.8 mg/L) and (Pb 0.23±0.02 mg/L) levels indicated gross organic and metal pollution. Ground water similarly, showed elevated levels of BOD (12.9±0.7 mg/L), nitrate (36.1±5.35 mg/L) and ammonia (13.7±2.6 mg/L). Metal levels in surface water and sediment was strongly correlated (r=0.89). Topsoil and vegetation samples around the vicinity of the creek did not show any significant level of contamination. There was no significant differences (p=0.05) in surface and ground water quality among the sampling points. The creek water was classified as heavily polluted. This could affect the aquatic flora and fauna of the creek ecosystem. Remediation measures should be employed to clean up the water way system and the environment.
A Review of Medicinal Plants with Hypotensive or Antihypertensive Effects
E.U. Etuk
Journal of Medical Sciences , 2006,
Abstract: This review examines medicinal plants, which have been reported to have hypotensive or antihypertensive effects. It pays particular attention but not totally restricted to plants whose antihypertensive effects have been scientifically validated. The main aim of the review is to piece together information on this subject, so as to raise more awareness, prevent duplication of efforts and possibly bring more attention to medicinal plants as a veritable source of antihypertensive drug. As the review ended, it was possible to conclude that, a lot of efforts are still needed not only in the validation of the plants but also in the areas of identifying the active principles in these medicinal plants and the conduct of clinical trials in humans.
Comparative Study of the in vivo Response of Malaria Parasites to Chloroquine among the Urban and Rural Dwellers in Sokoto State, Nigeria
E.U. Etuk
Journal of Medical Sciences , 2005,
Abstract: The in vivo response of malaria parasites to chloroquine among the urban and rural dwellers in Sokoto state, Nigeria has been studied. A total of seventy-eight patients with acute uncomplicated malaria were selected for the study from two distinct centres representing the urban and rural dwellers of the state. All the treated cases from the rural centre (Umaruma) responded well; both the clinical features of the disease and the parasites in the blood cleared within three days of initiating treatment and there was no relapse after twenty-one days follow up. But 19.8% (5) of the patients from the urban centre showed resistance at R1 level to chloroquine. This study therefore concluded that, chloroquine is more effective for the treatment of malaria in the rural than the urban dwellers possibly because of the rampant abuse of the drug by the later group.
Health Impact Assessment of Solid Waste Disposal Workers in Port Harocurt, Nigeria
Wachukwu,K. Confidence,E.U. Eleanya
Journal of Applied Sciences , 2007,
Abstract: The various health risks associated with solid waste disposal workers in Port Harcourt, Rivers State of Nigeria, were investigated. The aim is to assess the extent of exposure in terms of inhalation of toxic substances and its inherent adverse health effects on them since the workers are not adequately protected while doing their jobs. About 10 mL of venous blood was collected from each of the 35 solid waste disposal workers aged 21-50 years and from each of the 15 control subjects of the same age bracket who are not exposed. A well structured questionnaire was also given to all the solid waste disposal workers to assess their health profile. Haematological parameters, liver function test (LFT) and toxic substance (Pb, Cu, Zn) concentration in the blood were carried out. There were slight decrease in the haematological parameters and liver function test (LFT) results, as compared with the control subjects. The values obtained are: Hb 13.43±1.14 g dL-1, HCT 37.13±3.22%, WBC 6.35±1.86x109 L-1, platelet 236.15±104.33x109 L-1, neutrophil 42.60±11.11% and monocyte 3.05±2.41% for solid waste workers. While the values for control subjects are: Hb 14.69±0.4 g dL-1, HCT 41.77±2.74%, WBC 7.23±1.21x109 L-1, platelets 282.40±33.76x109 L-1, neutrophil 58.65±5.87% and monocyte 5.77±2.03%. The lymphocyte counts for waste disposal workers was significantly higher (50.42±11.30%) and (32.83±5.32%) for the control subjects. The AST values increased significantly for solid waste workers with a mean AST concentration of (11.19±2.36 μ L-1) and 8.97±4.07 μL-1 for the control subjects. And mean total bilirubin increased progressively as the number of years of exposure increased (19.00 μmol L-1). The peak value was for workers exposed for about 7 year. The result also showed that mean lead, copper and Zinc concentrations were high for the solid waste workers (Pb = 0.07±0.05 mg L-1, Cu =0.22±0.08 mg L-1 and Zn = 0.56±0.48 mg L-1) while that of control subjects were Pb = 0.02±0.01 mg L-1, Cu =0.11±0.04 mg L-1 and Zn = 0.30±0.04 mg L-1. Malaria parasitaemia was high amongst the solid waste disposal workers. Adequate Personal Protective Equipment (PPE) should be provided to avoid epidemic among the workers. It can be inferred that the lymphocytosis observed in this category of workers may indicate the presence of bacterial and protozoal infections, while a mild eosinophilia might be as a result of allergic disorders and helminthic infections.
Acute Toxicity and Efficacy of Psidium guajava Leaves Water Extract on Salmonella Typhi Infected Wistar Rats
E.U. Etuk,U.U. Francis
Pakistan Journal of Biological Sciences , 2003,
Abstract: The acute toxicity and efficacy of Psidium guajava leaves water extract on Salmonella typhi infected wistar rats had been studied. Oral administration of 10–50 mg/100 g of the extract showed no significant harmful effect in the animals after 72 h. The administration of 10-30 mg/100 g of the extract 12 h through the same route to rats infected with Salmonella typhi produced a recovery within seven days. The Salmonella infection equally responded to chloramphenicol, a conventional antibiotic used in the treatment of this infection. These results suggested that the water extract of Psidium guajava leave was non toxic at the tested doses and effective against Salmonella infection in wistar rats.
Assessment of Qualities of Surface Water, Sediments and Aquatic Fish from Selected Major Rivers in South-Western Nigeria
E.U. Etim,G.U. Adie
Research Journal of Environmental and Earth Sciences , 2012,
Abstract: Available sources of portable water for drinking, domestic and industrial chores in Nigeria are dwindling because of concomitant increase in population, urbanization and industrial activities. This study assessed the qualities of Surface Water (SW), Sediment (SD) and Tilapia Fish (Oreichromis niloticuss) (TF) samples collected from Asejire, Oni, Ona, Ogun, Ogunpa, Eleyele and Majidun rivers and Lagos lagoon in south-western Nigeria. Samples of SW, SD and TF were collected at strategic locations from each water source and analyzed using standard procedures. SW for all locations were grossly polluted with organics as indicated by high COD (72.8-292 mg/L) and BOD (30.8-143 mg/L) and low DO (1.04-6.68 mg/L) levels. Lead levels in SW for all locations exceeded WHO and NIS limits for drinking water. Cadmium levels in sediments from Oni, Ona, Ogun and Ogunpa rivers also exceeded Canadian Interim Sediment Quality Guidelines (ISQG) of 0.6 mg/kg. Fish from Lagos lagoon were most polluted with Pb, Cr, Ni and Cu. Principal Component analysis showed that 86.4% of overall metal load for SW was from Ogunpa and Eleyele rivers, whereas 62.9% metal load for S was from Ogunpa, Eleyele and Ogun rivers. The metal pollution index order was Pb>Cu>Co>Ni>Cr>Cd. Lead and nickel showed strong positive correlation between SW and SD, suggesting common source while Pb and Cr showed strong negative correlation with Cd between SW and TF. Unsafe disposal practices of wastes into or within the vicinity of water bodies should be discourage.
Migraine can be Managed with Virtual Scanning: Case Report
E. Ewing, G. Ewin,E.U. Nwose
The Open Complementary Medicine Journal , 2009, DOI: 10.2174/1876391X00901010016]
Abstract: It is known that Virtual Scanning is a cognitive technology that translates electro-physiology arising from biophotons emission into clinical information. The technology promises diagnostic and therapeutic applicability for all categories of migraine. We present a case of migraine in which the patient testifies that the technology helped to alleviate the physiological symptoms. The biochemical basis for anti-platelet medication vis-à-vis stasis and thrombogenesis in migraine and the technology is highlighted. The validity of the clinical benefits of light therapy and Virtual Scanning technology in particular, which can be employed as an emerging non-invasive option to manage migraine, requires a consideration and research in order to develop a framework for integration into conventional medical practice.
Nutrients and Antinutrients in Selected Brands of Malt Drinks Produced in Nigeria
E.U. Okon,E.O. Akpanyung
Pakistan Journal of Nutrition , 2005,
Abstract: Seven commercial brands of malt drinks were analyzed for reducing sugar, protein, minerals, vitamins A, vitamin C, oxalate, phytate and hydrogen cyanide. The malt drinks were found to contain substantial amounts of reducing sugar ranging from 603.66 to 943.45 mg/dl. Vitamins A and C were present in adequate amounts with respect to RDA requirements, whereas, low values were found for protein, iron, zinc, oxalate, phytate and hydrogen cyanide. The paper observes the need for standardization in the extent of fortification of malt drinks with vitamins and the possible inclusion of essential minerals as fortificants in these products to make them more wholesome.
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