The effect of hydrogen on transient flow of hydrogen natural gas mixture

Hydrogen is a high pressure gas, hence hydrogen natural gas mixture require an accurate prediction of transient flow parameter. The reduce order modelling is used in analysis of transient flow, where viscosity change is neglected thereby reducing the governing equations to Euler equation based on the assumption. The hydrogen natural gas mixture is homogenous, with pressure and velocity considered as principal dependent variable where polytrophic process is admitted. For improvement on the accurate prediction of flow parameters on the analysis of transient flow of hydrogen natural gas mixture in pipeline implicit Steger-Warming flux vector splitting method (FSM) used in the construction of efficient reduce order model. The result shows significant improvement on efficiency, accuracy and uniqueness when compared to normal conventional numerical techniques. The effect of heat transfer is observed on heat flux and internal energy of transient flow. The methods of reduced order with and without static correction show significant agreement for different gas ratio. The prediction of flow parameter along the pipeline can improvegas delivery and the analysis of transient flow behaviour at any point during the flow

Accidental poisoning with aluminum phosphide presenting with excessive cholinergic symptoms with response to atropine: A case report

Accidental poisoning in children, though underreported in our environment, is common and could prove fatal. It is important to identify the primary chemical agent that is responsible for the poisoning. We present a case of accidental ingestion of fish poisoned with aluminum phosphide (AlP) used as rat poisoning by a 14-month-old girl. At presentation, the actual chemical content of the poison was not available and clinical features were suggestive of organophosphate poisoning. She was commenced on atropine together with other treatment, on which she made remarkable improvement. The atropine was continued with complete resolution of symptoms on the third day of admission. We, therefore, report a serendipitous use of atropine in the management of AlP poisoning with successful outcome

Quality of sleep among clinical medical students of Bayero university, Kano, Nigeria

Background: Sleep deprivation and disruptions are associated with both psychological and physiological disorders. Medical students have an increased risk for sleep deprivation. This study aimed to determine the quality of sleep among clinical medical students of Bayero University Kano (BUK). Materials and Methods: This is a cross-sectional study that was conducted between February and March 2019 among clinical students of BUK. The data were obtained using sociodemographic questionnaire as well as the Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (ESS) self-administered questionnaires. Two hundred questionnaires were administered to the students in their 4th, 5th, and 6th academic year. SPSS version 20 was used for the statistical analysis of the data collected. Results: A total of 181 questionnaires were completed out of the 200 that were administered, making a response rate of 90.5%. There were 114 males (63%) and 67 females (37%), giving a male-to-female ratio of 1.7:1, which is in keeping with the gender distribution of the students. The mean age (± standard deviation) of the students was 23.8 ± 2.9 years. The overall poor sleep quality was found to be 53.0% based on the PSQI, whereas the overall excessive daytime sleepiness was found to be 38.3% using the ESS. Poor sleep quality was found to be 61.1%, 51.7%, and 42.9% among the students in the 4th, 5th, and 6th academic years, respectively (P = 0.14). Excessive daytime sleepiness was found to be 45.8%, 41.7%, and 22.9% among the students in the 4th, 5th, and 6th academic years, respectively (P = 0.03). Conclusion: The prevalence of poor sleep quality is high among the clinical students of BUK