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Search Results: 1 - 10 of 11863 matches for " ES Mwankon "
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Investigations On The Carrier Rate Of Pasteurella Multocida In Black Rats (Rattus Rattus) In A Commercial Quail Farm
ES Mwankon, MO Odugbo, LD Jwander, V Olabode, SO Ekundayo, U Musa, T Spencer, SI Isa, A Kaikabo, S Boss
African Journal of Clinical and Experimental Microbiology , 2009,
Abstract: The aim was to investigate the level of Pasteurella Multocida infection from two anatomic sites of black rats (Rattus Rattus), popularly referred to as house or roof rats in a commercial quail farmhouse with recurrent fowl cholera outbreaks and also to evaluate the association between the Pasteurella Multocida found in rats co-habiting quail poultry houses and isolates from outbreaks of fowl cholera. Thus 100 pharyngeal and 100 rectum swabs samples taken from rats co-habiting farmhouse were obtained and evaluated bacteriologically for isolation of P. multocida; 54% of pharyngeal swabs and 62% of rectum swabs were positive for P. multocida. Extended phenotypic characterization of the isolates confirmed the presence of subspecies P. multocida multocida. Subspecies Pasteurella Multocida septica and gallicida were not encountered. Ramdom serotyping of 5 isolates each from the two sites confirmed serotypes A:4. Fowl cholera outbreaks were confirmed on the quail houses and carrier rats had the same Pasteurella Multocida subspecies and serotype as the infected quail. The public health significance of the finding is also discussed. African Journal of Clinical and Experimental Microbiology Vol. 10 (1) 2009: pp. 2-9
Extraction and Determination of Three Chlorophenols by Hollow Fiber Liquid Phase Microextraction - Spectrophotometric Analysis, and Evaluation Procedures Using Mean Centering of Ratio Spectra Method  [PDF]
Zarrin Es'haghi
American Journal of Analytical Chemistry (AJAC) , 2011, DOI: 10.4236/ajac.2011.21001
Abstract: A method termed hollow fiber liquid phase microextraction (HF-LPME) was utilized to extract three chlo- rophenols, 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP) and 2,4,6- trichlorophenol (2,4,6-TCP), separately from water. The extracted chlorophenols were then separated, identified, and quantified by UV-Vis spectrophotometry with photodiode array detection (UV-Vis/DAD). In the study, experimental con-ditions such as organic phase identity, acceptor phase volume, sample agitation, extraction time, acceptor phase NaOH concentration, donor phase HCl concentration, salt addition, and UV absorption wavelength were optimized. The statistical parameters of the proposed method were investigated under the selected con-ditions. The analytical characteristics of the method such as detection limit, accuracy, precision, relative standard deviation (R.S.D.) and relative standard error (R.S.E.) was calculated. The results showed that the proposed method is simple, rapid, accurate and precise for the analysis of ternary mixtures.
Short Communication: Immunization Trend in Nigeria
ES Edokwe
Afrimedic Journal , 2011,
Abstract:
Letter to the Editor: Prevention of HIV infection in children: Challenges of PMTCT in Nigeria
ES Edokwe
Afrimedic Journal , 2010,
Abstract: Letter to the Editor - No abstract available
Modelling the effect of temperature on seed germination in some cucurbits
ES Kurtar
African Journal of Biotechnology , 2010,
Abstract: The prediction of germination percentage (GP) and germination speed (GS) of the seeds for some cucurbits (watermelon, melon, cucumber, summer squash, pumpkin and winter squash) was investigated by mathematical model based on temperature. The model, D = [a - (b x T) + (c x T2)] of Uzun et al. (2001), was adapted to predict both the GP and GS in relation to 12 different temperatures, namely 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42 and 45°C. In addition, optimum temperature (To = - b / 2 x c) for GP and GS were calculated by using the coefficients obtained from the regression models developed. Observed and predicted optimum temperature (To) for GP and GS varied among species and cultivars and strong correlations were established between observed and predicted GP and GS based on temperature. The predicted To ranged from 21.6°C (summer squash, pop. Urfa) to 27.8°C (watermelon, cv. Amazon F1) for GP and from 25.5°C (winter squash) to 30.4°C (melon, cv. Hasanbey-1) for GS. These results indicated that predictions based on this mathematical model were highly reliable and that it could be confidently used to predict GP and GS for the evaluated cucurbits.
Newborn Survival in Nigeria
ES Edokwe
Afrimedic Journal , 2011,
Abstract:
Influence of gamma irradiation on pollen viability, germination ability, and fruit and seed-set of pumpkin and winter squash
ES Kurtar
African Journal of Biotechnology , 2009,
Abstract: The influence of irradiation dose (50, 100, 200 and 300 Gray), irradiation time (July 9th, 11th, 15th, 21st and 28th) and pollen age (0th and 1st days) on the pollen viability, germination ability and fruit and seed-set were investigated in pumpkin (Cucurbita moschata Duchesne ex Poir.) and winter squash (Cucurbita maxima Duchesne ex Lam.). Along with increasing of irradiation dose, irradiation period and pollen age, pollen viability, germinability and fruit and seed-set decreased, significantly. Irradiated and nonirradiated pollens maintained their viability for 1 - 4 days and 4 - 7 days, respectively. Non-irradiated pollens of winter squash were germinated for 2 days and produced the highest germination rate (22.6 and 22.9%) on July 9th and 11th, respectively. Moreover, irradiated pollens were germinated for 2 days at 50 Gray (1.1 - 8.5%) and for one day at 100 Gray (0.6 - 10.4%). On July 9, the fruit-set rate ranged from 75.0% (at 50 Gray) to 63.0% (at 100 Gray) by pollination with 0th day pollens in winter squash. Pollination with irradiated pollens at 50 Gray and 100 Gray gave both seeded and seedless fruits depending on irradiation periods. All fruits obtained from pollinations with non-irradiated pollens were seeded. Although irradiated pollens at 200 Gray and 300 Gray were not germinated in medium, they gave fruit more or less, but fruits were seedless. The highest fruit-set rates were determined 75.0% (57SI21) in winter squash and 26.3 (55BA01) in pumpkin, pollination with 0th day old pollens. In all irradiation times, the percentage of fruit and seed-set of pumpkin was lower than that of winter squash.
The role of plain radiographs in the diagnosis of chronic maxillary rhinosinusitis in adults
ES Kolo
African Health Sciences , 2012,
Abstract: Background: Computed tomography is currently the gold standard for the diagnosis of chronic rhinosinusitis. However, this facility is not readily available in many developing countries. Thus, plain sinus radiography is still widely in use in our practice. Objectives: To assess the diagnostic value of plain radiographs in adult patients with uncomplicated chronic maxillary rhinosinusitis. Methods: This study was carried out at a tertiary health facility in Northern Nigeria. All adult patients with clinical and radiological diagnosis of chronic maxillary rhinosinusitis were included. Results: A total of 88 patients were recruited into the study. There were 51 males (58.0%) and 37 (42.0%) females. Their ages ranged from 18 to 60 years; with a mean age of 31.7+ 9.20 years. Mucosal thickening was the commonest diagnostic plain radiographic feature, and fluid level was the least. Maxillary antra with diagnostic plain radiographic interpretations of fluid level, haziness and opacity had high specificities (100%, 95.2%, and 85.7%) and high positive predictive values (100%, 75%, and 70%) respectively. Conclusions: Plain radiographs are relevant in the diagnosis of chronic maxillary rhinosinusitis in our locality only when they show features of fluid level: findings of haziness and opacity are of less diagnostic value.
Non-Standard Workers: The South African Context, International Law and Regulation by The European Union
ES Fourie
Potchefstroom Electronic Law Journal/Potchefstroomse Elektroniese Regsblad , 2008,
Abstract: The current labour market has many forms of employment relations that differ from full-time employment. \"Atypical,\" \"non-standard,\" or even \"marginal\" are terms used to describe these new workers and include, amongst others, part-time work, contract work, self-employment, temporary, fixed-term, seasonal, casual, piece-rate work, employees supplied by employment agencies, home workers and those employed in the informal economy. These workers are often paid for results rather than time. Their vulnerability is linked in many instances to the absence of an employment relationship or the existence of a flimsy one. Most of these workers are unskilled or work in sectors with limited trade union organisation and limited coverage by collective bargaining, leaving them vulnerable to exploitation. They should, in theory, have the protection of current South African labour legislation, but in practice the unusual circumstances of their employment render the enforcement of their rights problematic. The majority of non-standard workers in South Africa are those previously disadvantaged by the apartheid regime, compromising women and unskilled black workers. The exclusion of these workers from labour legislation can be seen as discrimination, which is prohibited by almost all labour legislation in South Africa. This contribution illustrates how the concept of indirect discrimination can be an important tool used to provide labour protection to these workers. The purpose of this article is to explore the scope of the extension of labour rights to non-standard workers in the context of South African labour laws and the international framework.
A return to the manifest justice principle: a critical examination of the "reasonable suspicion/apprehension of bias" and "real possibility of bias" tests for judicial bias in South Africa and England
ES Nwauche
Potchefstroom Electronic Law Journal/Potchefstroomse Elektroniese Regsblad , 2004,
Abstract: The impartiality of judges often expressed in the Latin maxim nemo iudex in propria causa interpreted to mean that no man should be a judge in his own cause together with the right of fair hearing make up the right to natural justice. This principle is recognized by a number of provisions of the Constitution of the Republic of South Africa, 1996. Section 165 (4) provides that the organs of state shall through legislative and other measures assist and protect the courts to ensure their independence, impartiality, dignity, accessibility and effectiveness. Furthermore, section 34 of the same Constitution provides that everyone has the right to have any dispute resolved by the application of law by a court or, where appropriate another independent and impartial tribunal or forum. Article 6(1) of the European Convention of Human Rights and Fundamental Freedoms 1950 as incorporated in the Human Rights Act 1988, applicable in England since 2000 provides that: "In the determination of his civil rights and obligations … everyone is entitled to a fair hearing … by an independent and impartial tribunal established by law." The independence of courts and impartiality of judges are closely related in that they operate to sustain public confidence in the administration of justice. This article advocates a return to the use of the manifest justice principle enshrined as the proper context for the application of the tests of "reasonable apprehension of bias" adopted by South African courts and "real possibility of bias" adopted by English courts in the consideration of allegation of apparent bias. This paper argues that the tests are different and that while the English test is a move of English courts from the real danger/likelihood test in consonance with an overwhelming global jurisprudence the South African test is a move away from this global jurisprudence and arguably back to the real danger/likelihood test. This paper also argues that the reasonable apprehension test as applied by the minority in SACCAWU v Irvin & Johnson Ltd (Seafoods Division Fish Processing) is a more acceptable interpretation of the reasonable apprehension test than the test laid down in President of the Republic of South Africa v South Africa Rugby Football Union (2) and its interpretation by the majority in SACCAWU v Irvin & Johnson Ltd (Seafoods Division Fish Processing). More importantly there is an examination of cases where the tests have been applied which hopefully shows that there are considerable problems and inconsistency in their application and argue that the manifest justice principle provides the proper context for the tests to be properly applied.
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