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Search Results: 1 - 10 of 538 matches for " OA Adepo "
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Palliation for transposition of great arteries
VO Adegboye, SI Omokhodion, O Ogunkunle, AI Brimmo, OA Adepo
Nigerian Journal of Surgical Research , 2003,
Abstract: Background: At the University College Hospital Ibadan we have no facility for total surgical correction of transportation of the great arteries (TGA). This prospective study reviews the palliative procedures we have used in the management of TGA. Method: Patients with the diagnosis of TGA were evaluated for morphological type. The choice of palliative procedure was made in some of the patients with morphological type in mind. No fixed criteria were used for allocating patients to Blalock-Hanlon (B-H), atrial septectomy while pulmonary banding (PB) and Blalock-Taussig (B-T) shunt have definite indications. Results: Fourteen consecutive patients with TGA were palliated. The ages of these patients ranged between 3 to 11 months (6.8 ± 2.4 months), there were 8 males to 6 females (1.3:1). Six patients had B-H atrial septectomy and 2(33.3%) died within 48 hours, 4 patients had B-T shunt and there were no mortality, 4 patients had PB and 2 (50.0%) died within 72 hours. The overall operative mortality was 28.6%. All the 10 survivors had improvement of their clinical features and fall in packed cell volume during the period of follow-up, which lasted 5 to 13 months (mean 9.3 ± 1.2 months). All patients had delayed wound healing. Conclusion: Appropriate and timely palliative surgery has a place in patients with TGA as an interim care. Key Words: Palliative surgery, transposition, great arteries Nigerian Journal of Surgical Research Vol.5(1&2) 2003: 129-133
Différenciation morphologique des populations naturelles d\'une sousespèce de tilapia Sarotherodon melanotheron melanotheron Rüppell, 1852 (Teleostei ; Cichlidae) de C te d\'Ivoire
B Adepo-Gourene, G Gourene
Sciences & Nature , 2008,
Abstract: L\'étude comparative de la variabilité morphologique de quatre populations naturelles de Sarotherodon melanotheron melanotheron révèle l\'existence de différenciations significatives et importantes entre ces dernières. 16 des 24 caractères analysés sont discriminants et permettent, par leur combinaison, de caractériser les différentes populations étudiées. Si la morphologie des poissons est partiellement due à l\'environnement, les divergences observées entre ces populations génétiquement différenciées suggèrent que les systèmes génétiques impliqués dans ces phénotypes sont sous sélection dans les environnements concernés. De sorte que, les changements morphologiques adaptatifs relevés semblent traduire le déroulement de phénomènes évolutifs au sein des populations de S. m. melanotheron. The comparative survey of morphometric variability of four natural populations of Sarotherodon melanotheron melanotheron reveals meaningful and important differentiations between them. 16 of the 24 characters analyzed are discriminative and permit by their combination to characterize the different populations studied. If fish morphology is partially due to environment, the divergences observed between these genetically differentiated populations suggest that the genetic systems that involve these phenotypes are under selection in the concerned environments. So adaptive morphological changes observed in these populations reveal probably the progress of evolutionary phenomena within the of S. m. melanotheron.
Analytical Load Balancing Model in Distributed Open Flow Controller System  [PDF]
Traoré Issa, Zamblé Raoul, Adama Konaté, Jo?l Christian Adepo, Bernard Cousin, Asseu Olivier
Engineering (ENG) , 2018, DOI: 10.4236/eng.2018.1012060
Abstract: The Software Defined Network (SDN) is a concept based on a decoupling between the control plan and the data plan of a network. Thus, the network becomes programmable and can be coupled to the business applications of the users. The study that is discussed in this article looks at load planning and balancing in distributed controllers. To do this, a model and theoretical methods of performance evaluation related to appropriate software tools, to predict and control the quality of service offered to users is exposed. This paper exposed also a distributed architecture of controllers and then a module based on an adaptive load balancing algorithm that is fault tolerant and fluctuates controller loads. The experiments show a significant gain in efficiency of our solution.
Distal Renal Tubular Acidosis, an Uncommonly diagnosed Cause of Failure to Thrive: Report of Five Cases.
OA Ajayi, OA Mokuolu
Nigerian Journal of Paediatrics , 2001,
Abstract: Five cases of distal renal tubular acidosis aged between 2 weeks and 2 months are described. The presenting features included lethargy, refusal to feed, high density of periodic respiration, vomiting and recurrent episodes of unexplained metabolic acidosis. A constant feature was failure to thrive despite caloric intakes in excess of normal requirements. The diagnosis of distal renal tubular acidosis (DRTA) was based on a urine pH>5.5 in a freshly voided urine despite concurrent or induced metabolic acidosis. All the babies responded dramatically to sodium bicarbonate supplement, as baking soda or bicarbonate of soda. The need for increased index of suspicion of DRTA in the evaluation of children in early infancy for failure to thrive and the simplicity of treatment using baking soda is discussed. Nigerian Journal of Paediatrics 2001; 28:21. pp. 21-24
Prion biology and bovine spongiform encephalopathy
Peralta,OA;
Archivos de medicina veterinaria , 2011, DOI: 10.4067/S0301-732X2011000200002
Abstract: the complex nature of prions has intrigued the scientific community during the last 70 years. since the first indication of scrapie infectivity and the experimental transmission of the scrapie agent in 1937, prions and their associated transmissible spongiform encephalopathies (tses) have been under constant investigation. tses are neurodegenerative and fatal diseases with no early diagnosis, treatment or cure. despite their diverse presentations, all tses stem from the infectious, spontaneous or hereditary conversion of the host-encoded cellular prion protein prpc into the pathogenic isoform prpsc. based on the prion hypothesis, prpc has the autocatalytic or induced capacity to change its secondary configuration from a mainly α-helix structure into predominant β-sheet configuration. another enigmatic aspect of the prion biology is the potential physiological function of prpc, a protein that is widely distributed in mammalian tissues and intensely expressed in the nervous system. prpc has been associated to several biological roles including cellular adhesion, protection and differentiation. the unpredictable properties of the prpsc and the complex presentation of tses have opened many questions yet to be answered. the potential zoonotic transmission of the bovine spongiform encephalopathy (bse) has generated intense concern in the international community over animal product biosecurity. during the last years, research in prion biology has mainly focused on determination of the pathogenesis of tses and the development of diagnostic and therapeutic methods. however, further research in prion biology is required in order to understand the complex nature of tses and how these diseases can be controlled.
Climate impacts, forest-dependent rural livelihoods and adaptation strategies in Africa: A review
OA Somorin
African Journal of Environmental Science and Technology , 2010,
Abstract: The long term contribution of forests to the livelihoods of the rural poor had been long appreciated. More than half of Africa’s fast-growing population rely directly and indirectly on forests for their livelihoods. As the continent faces stresses from poverty and economic development, another major uncertainty is looming that could alter many of the relationships between people and forests. This uncertainty is climate change. Climate impacts such as changes in temperature and rainfall patterns resulting in drought, flooding, all exert significant effect on forest ecosystems and their provision of goods and services, which form the safety nets for many African rural poor. Building adaptation strategies becomes an option for forest-dependent households and communities, and even countries whose economies largely depend on the related sectors. The review details cases of impacts, underlying causes of vulnerability, and identified coping and adaptation strategies, as reported in their National Communications by many African countries to the United Nations Framework Convention for Climate Change.
Nutritive potentials and utilization of garden snail (Limicolaria aurora) meat meal in the diet of Clarias gariepinus fingerlings
OA Sogbesan
African Journal of Biotechnology , 2006,
Abstract: The possibility of using garden snail (Limicolaria aurora) meat meal as a protein source in fish feeds was tested in Clarias gariepinus fingerlings. Five isonitrogenous (43% crude protein) diets in which garden snail meat meal was used to replace fish meal at 0%, (control diet), 25, 50, 75 and 100% inclusion levels were used for the study. The fish were fed ad-libitum for 8 weeks. Garden snail meat meal used had a crude protein content of 66.76% and ash content of 4.10%, while crude protein and ash content of fishmeal used were 72.46% and 18.22% dry weight, respectively. The lipid content of garden snail meat meal and fishmeal; 7.85% and 7.97%, respectively, was not significantly different (p0.05). The mean weight gain, relative growth and specific growth rates were highest in fish fed 25% garden snail meat meal diet. The best food conversion ratio (1.21) and protein efficiency ratio (3.69) were also recorded in fish fed 25% garden snail meat meal diet. Visceral somatic indices (2.71-17.24%) increased significantly (p0.05) with increase in the garden snail meat meal inclusion in the diets.
Where does Islamic Arbitration fit into the Judicially Recognised Ingredients of Customary Arbitration in the Nigerian Jurisprudence?
OA Ladapo
African Journal on Conflict Resolution , 2008,
Abstract: In recent times, there has been a renaissance of the Islamic heritage in the consciousness of adherents of the Islamic faith and this has sought expression in their quests to conduct their affairs in accordance with Islamic injunctions. This has become noticeable in areas where Islam is the predominant religion. In northern Nigeria, in the past decade, there has been a renewed focus on the Islam Shariah Law system, with six of the nation's thirty-six states symbolically adopting it in public proclamation. There is, however, a dearth of scholarly research on the operation of Islamic conflict resolution mechanisms in Nigeria. This situation has led to arbitrariness and uncertainty in the use of these mechanisms. This article analyses the nature and principles of Islamic arbitration, and its applicability within the wider Nigerian legal framework vis-à-vis judicially recognised alternative dispute resolution mechanisms, particularly the principles and practice of customary arbitration. African Journal on Conflict Resolution Vol. 8 (2) 2008: pp. 103-130
Impact of National Universities Commission (NUC) Accreditation Exercise on University Administrative Structure
OA Oribabor
African Research Review , 2008,
Abstract: The study examined the impact of National University Commission (NUC) accreditation exercise on university administrative structure of four selected Nigerian universities between 1995 and 1999. Data were collected through questionnaires administered to 400 staff and 200 students of four Nigerian universities. The universities were; Obafemi Awolowo University Ile-Ife, University of Ibadan, Ibadan, Olabisi Onabanjo University Ago Iwoye, and University of Ado-Ekiti. One hypothesis was generated for the study. The two sets of questionnaires - one for the students and the other for staff were used to elicit information from the respondents. The responses were tested at 0.05 level of significance using chi-square statistics. The study revealed that the accreditation exercise had no impact on administrative structure (X2 c = 70.30, X2 t = 12.59, df = 6, p<0.05) and efficiency of university staff (X2 c = 35.55; X2 t = 24.99; df = 15; p<0.05). Based on the findings of this study, recommendations were made. African Research Review Vol. 2 (3) 2008: pp. 222-235
A Critical Review of the Involvement of Teachers and Students’ Interest in Current English Language Curriculum in Nigerian Secondary
OA Oribabor
African Research Review , 2009,
Abstract: This paper evaluated the appropriateness of teaching English language in some selected secondary schools in both Urban (Ile-Ife) and Rural (Ibodi) areas respectively of former Oranmiyan and Atakunmosa Local Government Areas of Osun state, Nigeria. 150 Senior Secondary School students whose ages ranged from seventeen years six months to eighteen years three months were used for the study. Also investigated were the attitudes of the teachers to the philosophy and implementation of the new English Language curriculum. The interest of the students in the new English language curriculum was also assessed. An attitude scale and a questionnaire were used to test the relationship among the variables identified for the study. Data collected in the study were analysed using percentages and t-test to test the hypotheses generated for the study. Results showed that teachers in both urban and rural settings did not differ in their opinion that they were not involved in the planning of the new English language programme. It was discovered by the paper that there is need to involve the teachers in both rural and urban schools settings in the identification and planning of programme objectives. The non-availability of recommended instructional materials was equally discovered. The paper suggested the need for an urgent re-assessment of existing strategies for implementing the new English language programme.
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