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Search Results: 1 - 10 of 448417 matches for " S. E. Egbe "
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Groundwater Monitoring in the Gneisso-Basaltic Fractured Rock Aquiferous Formations of Kumba, Southwest Region Cameroon: Seasonal Variations in the Aqueous Geochemistry and Water Quality  [PDF]
R. A. Akoachere, Y. M. Ngwese, S. E. Egbe, T. A. Eyong, S. N. Edimo, D. B. Tambe
Journal of Geoscience and Environment Protection (GEP) , 2018, DOI: 10.4236/gep.2018.611003
Abstract: The objective was to determine and monitor seasonal changes during four hydrological seasons: Wet season (September), Wetdry season (December), Dry season (March) and Drywet season (June) in the groundwater aqueous geochemistry and its domestic-agro-industrial quality using physicochemical parameters and hydrogeochemical tools: Temperature, Electrical Conductivity EC, pH, Total dissolved solids TDS, Ionic ratios, Gibbs diagrams, Piper diagrams Durov diagrams, total hardness HT, Water quality index WQI, Sodium adsorption ratio SAR, Percent Sodium %Na, Kelly’s Ratio KR, permeability index PI, Magnesium adsorption ratio MAR, Residual sodium carbonate RSC and Wilcox diagram. Field physicochemical parameters ranged from: Wet season; pH 3.9 - 6.9; Temperature, 23.3°C - 29.1°C; EC, 10 - 1900 μS/cm; TDS, 6.7 - 1273 mg/L; Wetdry, pH, 5.7 - 11.7; Temperature, 23.6°C - 28.3°C; EC, 1 - 1099 μS/cm, TDS, 0.67 - 736.33 mg/L; Dry pH, 5.7 - 13.1; Temperature, 26.3°C - 30.2°C; EC, 12 - 770 μS/cm, TDS, 8.04 - 515.9 mg/L and Drywet, pH, 4 - 7.4; Temperature, 25.8°C - 30.7°C; EC, 10 - 1220 μS/cm, TDS, 6.7 - 817.4 mg/L. Seventy-two groundwater samples, 18 per season were analysed. All ionic concentrations fell below acceptable World Health Organization guidelines in all seasons. The sequence of abundance of major ions are; Wet, Ca+ > Mg2+ > Na+ = K+ > NH4+, HCO3? > Cl? > NO3? > SO42? > HPO42?; Wetdry Ca+ > K+ > Mg2+ > Na+ > NH4+, HCO3? > Cl? > SO42? > NO3? > HPO42?; Dry Ca+ > K+ > Mg2+ > Na+ > NH4+, HCO3? > Cl?> NO3? > SO42? > HPO42?; Drywet NH4+ > Ca+ > K+ > Mg2+ > Na+; Cl? > HCO3? > NO3? > SO42? > HPO42?. Groundwater ionic content was due to rock weathering and ion exchange reactions. CaSO4 is the dominant water type in Wet and Wetdry seasons; followed by CaHCO3, Na + K-Cl Wet, CaSO4 and
Hydrogeochemical Model and Water Quality of Groundwater in the Granito-Basaltic Fractured Rock Aquiferous Formations in Bafoussam, West Region-Cameroon  [PDF]
R. A. Akoachere, T. A. Eyong, M. O. Eduvie, S. E. Egbe, O. O. Yaya, M. O. Nwude
Journal of Water Resource and Protection (JWARP) , 2018, DOI: 10.4236/jwarp.2018.1011068
Abstract: This study determined the hydrogeochemical model of groundwater and groundwater domestic-agro-industrial quality in Bafoussam using hydrogeochemical tools and physicochemical parameters: Ionic ratios, Gibbs diagrams, Piper diagrams, Durov diagrams and water quality indices. From physicochemical parameters; pH ranged from, 4.47 - 7.84; EC, 10 - 820 μS/cm; Temperature, 22.3°C - 29.5°C and TDS, 6.7 - 549.4 mg/L. The major ions fell below WHO acceptable limits. The sequences of major ionic abundance are: Ca2+ > Mg2+ > K+ > Na+ > NH+4, HCO-3 > Cl- > SO2-4 > NO3 > HPO2-4. Recharge by atmospheric precipitation, ion-exchange and simple dissolution processes are responsible for groundwater character, ionic content resulted from ion exchange and rock-weathering. Water types are Ca-HCO3 and Ca-Cl Hydrogeochemical facies are Ca-Mg-Cl-SO4 and Ca-Mg-HCO3. Domestic water quality was determined by use of pH, electrical Conductivity EC, total dissolved solids TDS, total Hardness HT and water quality index WQI. WQI values ranged from 0 - 42.09 and HT 67.89 - 339.01 indicating that water is of good domestic quality. Agro-industrial suitability of groundwater was determined using, sodium adsorption ratio SAR, permeability index PI, Magnesium adsorption ratio MAR, percent sodium %Na, Kelly’s ratio KR and Residual sodium carbonate RSC and Wilcox diagram; From irrigational water suitability parameters, SAR values ranged from 0.01 - 0 05; %Na 3.69 - 15.50; KR 0.005 - 0.023; PI 1.04 - 67.98; MAR 2.89 - 55.27; RSC -5.22 to -0.44 and Wilcox diagram indicate that inorganic groundwater content in the study area is excellent-good for irrigation; this is of significance since Bafoussam a major agroindustrial zone in Cameroon and Central Africa is in the process of developing large scaled irrigation based agricultural projects dependent on use of surface and groundwater. Recharge from precipitation exchanges ions with the weathered country rocks and mixes with regional flow in a generally south-east north-westerly direction by piston flow in the granito-basaltic aquiferous formations in Bafoussam. There is need for detailed studies to determine aquifer
Antibiotics Resistance Pattern and Plasmid Profiling of Edwardsiella tarda Isolated from Heterobranchus longifilis  [PDF]
F. C. Ogbonne, E. R. Ukazu, F. C. Egbe
Journal of Biosciences and Medicines (JBM) , 2018, DOI: 10.4236/jbm.2018.64008
Abstract: A study was carried out to investigate antibiotic resistance patterns and plasmid profiling of Edwardsiella tarda isolated from farmed-cultured Heterobranchus longifilis in Lagos State, Southwest of Nigeria. A total of 44 Edwardsiella isolates were recovered from 80 fish samples collected from the 10 fish farms using selective random stratification. It was observed that Edwardsiella tarda isolates were 100% resistant to Amoxicillin, Chloranphenicol, Levofloxacin, Streptomycin and 90% resistant to Nalidixic Acid respectively. All the isolates were 100% susceptible to Spectinomycin and Ciprofloxacin, while Ofloxacin, Gentamycin, and Pefloxacin vary in their level of susceptibility with 90%, 80% and 70% sensitivity respectively. Conversely, 8 out of 10 fish farm locations studied were observed to have antibiotic-resistant strains, and 5 out of 8 drug-resistant strains were found to carry plasmid and the sizes of the plasmid ranges between 20.027 kb to 23.130 kb. The plasmid after treatment with mitomycin C and ethidium bromide were lost during the process of plasmid curing confirming that the multiple drug resistant exhibited by the isolates was plasmid mediated. There are fewer studies on antibiotic resistance in Edwardsiella tarda from aquaculture enterprises and this study provides further support to the view that there is a potential risk of transfer of resistant bacteria and their genes to human pathogen through the food chain. Although, in Nigeria there is no antibiotic product registered for aquaculture usage, yet fish farmers use them off-label for bacterial diseases prevention.
Radiation exposure levels within timber industries in Calabar, Nigeria
Inyang S,Inyang I,Egbe N
Journal of Medical Physics , 2009,
Abstract: The UNSCEAR (2000) observed that there could be some exposure at work which would require regulatory control but is not really considered. This study was, therefore, set up to evaluate the effective dose in timber industries in Calabar, Nigeria to determine if the evaluated dose levels could lead to any radiological health effect in the workers, and also determine if the industries require regulatory control. The gamma ray exposure at four timber industries measured using an exposure meter were converted to effective dose and compared with the public and occupational values. The evaluated effective dose values in the timber industries were below public and occupational exposure limits and may not necessarily result in any radiological health hazard. Therefore, they may not require regulatory control.
Forest Soil Quality and Potentials for Food Systems Health in the Takamanda National Park in South Western Cameroon  [PDF]
Mary E. Ngaiwi, Ernest Molua, A. E. Egbe
Natural Resources (NR) , 2019, DOI: 10.4236/nr.2019.106015
Abstract: Soil is a basic natural resource for food production, the vast majority of food we consume is either directly or indirectly derived from soil. Soil quality determines the quantity and quality of foods grown. Protecting the soil’s physical, chemical and biological integrity?is?therefore of vital importance in safeguarding global food security. This paper evaluates the physical and chemical propertiesof soils in the rainforest of the Takamanda in Southwestern Cameroon and their implications?on?agricultural productivity and food security. Soils were randomly sampled using a bucket soil auger at the left, middle and right flank of the 50 ha Takamanda forest dynamic plot. Soils were sampled from three flanks at depths of 0 - 10 cm, 10 - 20 cm and 20 - 30 cm. Bulk density increased with soil depth in all the flanks. Soil nitrogen, organic carbon, potassium, magnesium, sodium, phosphorus and cation exchange capacity were greater in topsoil (0 - 10 cm) than subsoils. Soil Ca and pH were slightly greater at 20 - 30 cm soil depths with value of 0.45 cmol (+)/kg and 4.24 respectively. Soil C/N ratio was highest (13.12) in 10 - 20 cm soil depth though it was not significantly different from the other soil depths. To promote food production, an integrated cost-effective approach to soil management should comprise the use of acid-tolerant species of crop plants, efficient use of fertilizers, suitable crop rotations, crop diversification and agroforestry.
Entrepreneurship Empowerment and Gainful Employment: Panacea for Youth Restiveness in the Niger Delta Region of Nigeria
AA Egbe, E Usang, PB Amimi, EO Ndifon
African Research Review , 2011,
Abstract: The Niger Delta region of Nigeria is the world’s third largest wetland. Its’ rich crude oil deposit has attracted several oil and gas Multinational Corporations, whose exploitative and explorative activities have rendered its hitherto viable economy, unproductive. The prevailing high incidence of kidnapping, pipeline vandalism and many other social disorders, which are believed to be poverty and unemployment induced, are direct consequences of the environmentally destructive activities of these Corporations. This study is aimed at determining the readiness of vulnerable Niger Delta youths to accept gainful employment and entrepreneurship empowerment, which were considered as alternatives that could possibly resuscitate their economies. Questionnaires were used to gather data from 900 resident respondents. Analysis revealed that the youths were willing to eschew violence and pursue legitimate means of livelihood. It was recommended that government in collaboration with the Multinational Corporations should offer the youths opportunities for entrepreneurship empowerment and gainful employment.
Gender Issues in Entrepreneurial Development in Benue State (Nigeria) and Counceling Implications
E.G. Egbe-Okpende,M.M. Orhungur
Bulgarian Journal of Science and Education Policy , 2012,
Abstract: This paper investigates the impact of counselling on gender issues in entrepreneurial development in Benue State (Nigeria). Feminine or women constitute about 50 % of the population in Nigeria, and they make up 45% of the 70% unemployed population. In Benue State, there is low industrial and entrepreneurial skills development, so poverty and under-employment of the feminine gender is endemic. Hence, gender issues as relates to "the forgotten 50% of the world’s population" or as the forgotten factor in economic development was studied using a random sample of fifty working class women. The study examines how this problem can be addressed through counselling. The descriptive survey design was used with one main research question guiding the study. The data was analysed using percentages. The re-sults of the study revealed that forty (80%) of the respondents with entrepreneurship development were influenced through education and counseling. Change in attitude of women as a result of education and their role in national development was investigated, and recommendations made on how to help women to fulfil their role by bridging the gender gap.
Blindness in southern Nigeria: a review of available data
C.N Pedro-Egbe, S Babatunde
Nigerian Journal of Clinical Practice , 2010,
Abstract: To bring up to date, existing knowledge on the prevalence and common causes of blindness in SouthernNigeria. Available publications on blindness in national and international journals, some dissertations of theNational PostgraduateMedicalCollege and the internet using MEDLINE. Data relating to the prevalence and common causes of blindness in southern Nigeria over a 20-year period (1973-2003) was reviewed. All relevant articles, full length and abstracts, were sorted by categories i.e. into global, continental (Africa), Nigeria and then southern and northern Nigeria groupings. Recent information was also obtained on the internet using MEDLINE and the “Blindness in Nigeria”. Reviewed information shows that blindness is asmuch a problemin SouthernNigeria as it is in the rest of the less developed and poor countries of the world; and that the commonest causes of blinding diseases are largely preventable and treatable. An appreciable depth of data exists on blindness in southern Nigeria. Reviewed information indicate that blindness is asmuch a problemin southernNigeria as it is in the rest of the less developed and poor countries of the world, but regrettably, the commonest causes of blinding diseases in this region are largely preventable and treatable.
Pediatric radiography entrance doses for some routine procedures in three hospitals within eastern Nigeria
Egbe N,Inyang S,Ibeagwa O,Chiaghanam N
Journal of Medical Physics , 2008,
Abstract: A survey of the entrance surface doses in the routine radiography of children in eastern Nigeria has been carried out in three hospitals, using thermoluminescence detectors. Chest, abdomen, lumbar spine, skull and pelvis were covered in this study. Findings reveal that doses are higher than the recommended reference values elsewhere, as well as values reported for Sudan. The mean percentage difference in entrance doses for chest radiography for this study and an earlier one carried out for three hospitals in the west of Nigeria is about 44.7%. The high doses are traceable to a lack of standardization in procedure, resulting in use of low tube voltages and high currents for examination, as well as the status of facilities in the area. Recommendations are made for immediate corrective measures to lower the doses.
L'hysterctomie totale par voie coelioscopique: L’expérience de l’H pital Général de Douala, Cameroun.
E Belley Priso, E Mboudou, T Nana Njament, T Egbe Obichemtit, AS Doh
Clinics in Mother and Child Health , 2009,
Abstract: Evaluer la faisabilité et l’intérêt de l’hystérectomie par voie coelioscopique chez la femme camerounaise. Etude prospective qui s’est déroulée à l’H pital Général de Douala de janvier 2000 à janvier 2008. Chez 21 patientes sur un total de 24 (soit 87,50%) l’intervention a pu être menée à terme par voie endoscopique alors que chez 3 patientes (12,50%), nous avons effectué une laparotomie de conversion. L’hystérectomie par voie coelioscopique est techniquement faisable dans notre contexte sans exposer à des complications sévères. Son intérêt didactique dans l’apprentissage de la coelioscopie opératoire, voire l’anatomie du pelvis est manifeste dans notre milieu. MOTS CLES: Hystérectomie total - Coelioscopique - H pital Généralde Douala - Cameroun
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