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Thyroidectomy under Local Anaesthesia: A Viable Option in a Resource Limited Community

International Journal of Otolaryngology and Head & Neck Surgery 2021年第5期10卷 383-391页

作者： Enoch Auta Dahilo David Femi Folorunsho Fredrick M. Damtong olumide Akitoye Ibeneche Onyemuchechi Gbujie Semen Stephen Yikawe Emmanuel Sara Kolo Titus Sunday Ibekwe Department of ENT/Head & Neck Surgery University of Abuja Teaching Hospital Abuja Nigeria Department of ENT/Head & Neck Surgery Nigerian Air Force Hospital Abuja Nigeria Department of ENT/Head & Neck Surgery Aminu Kano Teaching Hospital Kano Nigeria

Background: In most centers worldwide, thyroidectomy is performed under general anaesthesia as a result of advances in anaesthetic technique, consideration for patients’ safety and surgeons’ convenience. However, in some developing countries such as Nigeria, facilities and expertise for general anaesthesia are not equitably distributed. As such, they are not available in some health centers especially in the rural communities. Hence, the need to explore other suitable alternatives such as operating under local anaesthesia. Aim: This study aims to highlight the feasibility and safety of thyroidectomy under local anaesthesia at a surgical outreach in a rural community in Nigeria. Patients and Methods: The study site was conducted at Bethany Medical Centre, Gboko, Benue State, Nigeria. It was a one-week surgical outreach. Neck infiltration with local anaesthesia was carried out using 2% xylocaine with adrenaline 1:200,000 and a standard open technique was used to carry out all thyroidectomies. Results: Out of seventy (70) patients that presented during the study period, 31 (44.3%) met the inclusion criteria and were operated within the seven (7) days period. There were 3 (10.7%) males and 28 (89.3%) females. There ages ranged between 22 to 65 years, average was 43 years. The average duration of surgery was 90 minutes, and 3 days’ hospital stay. Those followed up two weeks post-operation recuperated well with no notable complications. Conclusion: Thyroidectomy under local anaesthesia is safe and feasible in our rural communities and in selected cases can be a suitable alternative to general anaesthesia.

关键词： Thyroidectomy Local Anaesthesia Goiter Nigeria

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Respiratory Symptoms and Spirometry Profile of Plastic Factory Workers in Ogun State, Southwest Nigeria

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Occupational Diseases and Environmental Medicine 2022年第2期10卷 60-70页

作者： John Omotola Ogunkoya olumide Abiodun Kolawole John Sodeinde Emmanuel Fikayo Bamidele John Sotunsa Akindele Emmanuel Ladele Omosivwe Oku George Ezinwa Emeruwa Olawale Kehinde Ogunyemi School of Clinical Sciences Benjamin Carson Senior College of Medical and Health Sciences Babcock University Ilishan Remo Nigeria Division of Respiratory Medicine and Allergy Department of Medicine Babcock University Teaching Hospital Ilishan Remo Nigeria Department of Community Medicine and Public Care Babcock University Teaching Hospital Ilishan Remo Nigeria Department of Obstetrics and Gynecology Babcock University Teaching Hospital Ilishan Remo Nigeria Department of Family Medicine Babcock University Teaching Hospital Ilishan Remo Nigeria

Background: Exposure to plastic fumes can lead to severe occupational hazards due to inhalation, ingestion or direct contact wide variety of potentially harmful by-products during the manufacturing and burning of plastics. Objectives: To determine the prevalence of respiratory symptoms in plastic factory workers, evaluate the respiratory function of plastic factory workers and the association between respiratory symptoms and the duration of employment. Methods: This was a cross-sectional study done among plastic factory workers. Using a random sampling technique, 190 individuals (95 subjects and 95 control) above 18 years of age were recruited. Data were obtained with a validated questionnaire and Spirometry was done. Result: The mean age of the study group and control were 30.27 ± 7.38 and 25.92 ± 4.63 respectively (t = 4.877;p Conclusion: Workplace exposure to plastic fumes can lead to development of respiratory symptoms and impaired pulmonary function.

关键词： Plasticos Thermoset Thermoplastic Styrene 1 3-Butadiene Microplastics

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Preparation and Some Properties of Metal Organic Chemical Vapour Deposited Al-Doped ZnO Thin Films Using Single Solid Precursors

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Journal of Modern Physics 2018年第11期9卷 2073-2089页

作者： olumide Oluwole Akinwunmi Johnson Ayodele O. Ogundeji Adetokunbo Temitope Famojuro Olakunle A. Akinwumi Olusoji O. Ilori Olatomide G. Fadodun Ezekiel Oladele Bolarinwa Ajayi Department of Physics and Engineering Physics Obafemi Awolowo University Ile-Ife Nigeria Department of Chemistry Obafemi Awolowo University Ile-Ife Nigeria Department of Electrical and Electronic Obafemi Awolowo University Ile-Ife Nigeria Centre for Energy Research and development Obafemi Awolowo University Ile-Ife Nigeria

Zinc Oxide (ZnO) and Aluminium doped ZnO (AZO) thin films were deposited on soda lime glass by Metal Organic Chemical Vapour deposition technique (MOCVD), using prepared compound mixtures of Zinc Acetate di-hydrate (Zn(CH3COO)2⋅2H2O;ZAD) and Aluminium Acetyl-Acetonate (Al(C5H702)3;AAA) precursors at a temperature of 420°C. Effects of the varying mole percent concentrations of AAA precursor additives on the Al dopant concentrations in ZnO were systematically studied. The observations were made via investigations carried out on the morphological, optical, electrical and compositional properties of the deposited thin films. The thin films morphology was found to be strongly dependent on the varying concentration of AAA in the precursor mixtures. The average optical transmittance of the thin films in the uv-visible region was over 85% except 5 mol.% Al. While the energy band gaps were found to be in range of 3.27 - 3.36 eV. There is a blue-shift of the energy band edge observed between 0 and 5 mol.% AAA, which may be due to Burstein-Moss’ band gap widening effect and an opposing band gap renormalization effect at 10 mol.% AAA along with an extra band gap stabilization effect (Roth’s effect) at 15 mol.% AAA in rather quasi-sinusoidal or anomalous behaviour. The optical transmittance and electrical conductivity of ZnO were enhanced with addition of Al dopants. The RBS confirm the presence of Al, Zn and O, and evidence that Al dopants were successfully incorporated into the ZnO.

关键词： ZnO Thin Film ZnO:Al MOCVD Optical Properties AAA ZAD Electrical Properties FESEM UV-Vis Optoelectronic Properties

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Some Properties of Manganese Oxide （Mn-O） and Lithium Manganese Oxide （Li-Mn-O） Thin Films Prepared via Metal Organic Chemical Vapor Deposition （MOCVD） Technique

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材料科学与工程（中英文B版） 2015年第5期5卷 231-242页

作者： Kabir O. Oyedotun Marcus Adebola Eleruja Bolutife Olofinjana olumide Oluwole Akinwunmi Olusoji O.Ilori Ezekiel Omotoso Emmanuel. Ajenifuja Adetokunbo T. Famojuro Eusebius I. Obianjuwa Ezekiel Oladele Bolarlnwa Ajay Department of Physics and Engineering Physics Obafemi Awolowo University lle-Ife 220005 Nigeria Department of Electronic and Electrical Engineering Obafemi Awolowo University Ile-Ife 220005 Nigeria Centre for Energy Research and Development Obafemi Awolowo University Ile-lfe 220005 Nigeria Department of Chemistry Obafemi Awolowo University Ile-Ife 220005 Nigeria

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An improved model for severe slugging stability criteria in offshore pipeline-riser systems

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Petroleum Research 2022年第03期 318-328页

作者： Adesina Fadairo Chinemerem Obi Kegang Ling Vamegh Rasouli Olumuyiwa Aboaba olumide Gbadamosi Department of Petroleum Engineering University of North Dakota Department of Petroleum Engineering University of Texas A&M Schlumberger Oilfield Services Repsol Norge AS

Flow assurance has been a major challenge in petroleum production systems especially in offshore operations where severe slugging is a dominant aching issue. This is characterized by pulsating flow behavior which impacts the reservoir productivity, pipeline-riser systems, and surface facilities(separator). The only means so far, of delivering reservoir fluids from offshore wells to the separator at the surface is by pipeline-riser systems where slugging is most prominent and oftentimes *** passive and active measures have been deployed over time to mitigate the associated problem,there is the need to develop a predictive tool for mitigating offshore slugging in the riser system. This study involves the use of a model and analysis approach to eliminate severe slugging based on the balance of forces acting on the pipeline-riser system. Modified stability criteria which consider accumulation and frictional pressure drops have been developed. The current approach is solely physicsdriven, to predict the corresponding liquid and gas velocities at which the fluctuations would be severe when producing multiphase fluids through pipeline-riser systems. By balancing the forces acting on a riser-pipeline system and accounting for frictional and accumulation effects, two hydraulic flow modeling approaches have been used in this study to improve the criteria for predicting the condition of severe slugging. The developed criteria were computed using MATLAB/Simulink and a severe slugging flow map was generated. The “new study 1” and “new study 2” showed a 16% and 13% increase respectively in predicted unstable cases than the Malekzadeh criteria. The criteria were tested at different separator pressures. The Taitel and Jansen criteria could not predict severe slugging at elevated separator pressure. Notwithstanding, the developed flow maps using the “new study 1” are more reliable than the “new study 2”. This is because the “new study 2” approach over defines the phys

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Nickel-based superalloy architectures with surface mechanical attrition treatment: Compressive properties and collapse behaviour

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纳米材料科学 2024年第5期 587页

作者： Lizi Cheng Xiaofeng Zhang Jiacheng Xu Temitope olumide Olugbade Gan Li Dongdong Dong Fucong Lyu Haojie Kong Mengke Huo Jian Lu

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