Papers by Babangida Mohammed
International Journal of Computing, Programming and Database Management
2019 3rd International Conference on Recent Developments in Control, Automation & Power Engineering (RDCAPE)
Reduction of power loss is a prominent issue for Distribution System in present era. Better alloc... more Reduction of power loss is a prominent issue for Distribution System in present era. Better allocation of DGs and shunt capacitor in DS plays a predominant role to achieve prescribed results. Further, most of the researchers considered these sources individually. In this paper a combined methodology of loss sensitivity factor and grasshopper optimization is proposed to solve this problem. Identification of possible locations is done by LSF method. Further, ratings are determined using GOA. At last, the potency of the developed method is verified on IEEE 83 bus system. To study the efficacy of the method several cases are used. The perceived results show its dominance of the developed methodology.
Asian Journal of Economics, Finance and Management, Aug 30, 2021
This study aims to investigate the possibility of supplying electricity from a renewable energysu... more This study aims to investigate the possibility of supplying electricity from a renewable energysupplemented hybrid system to Geidam. One of the major rural centers in Yobe state. The town despite having a population of more than 157 thousand people (according to 2006 census), is yet to enjoy its own quota of the national electricity grid due to remoteness and distance from the generating stations available in the country and the environmental condition of the area doesn’t allow poles to stay long, this makes transmission to these areas uneconomical. Because of the great need to reduce the cost of erecting poles every year and the fact that there is abundance of renewable energy sources such as sun light, wind, and animal waste, a feasibility study of the area in question was carried out on how to design a micro grid system that will act to supplement the existing national grid in the study area. In the study the load demand of the area was sampled into residential and commercial loa...
British Journal of Anaesthesia, 2021
The African Surgical OutcomeS-2 (ASOS-2) trial tested an intervention to reduce post-operative mo... more The African Surgical OutcomeS-2 (ASOS-2) trial tested an intervention to reduce post-operative mortality in Africa. We ran this concurrent evaluation to understand the process of intervention delivery. Mixed-methods process evaluation, including field-notes, interviews and post-trial questionnaire responses. Qualitative analysis used the framework method with subsequent creation of comparative case studies, grouping hospitals by intervention fidelity. Post-trial questionnaire was developed using initial qualitative analyses. Categorical variables were summarised as count (percentage) and continuous variables as median (interquartile range (IQR)). Odds ratios (OR) were used to rank influences by impact on fidelity. Data-set included eight in-depth case studies, and 96 questionnaire responses (response rate 67%) plus intervention fidelity data for each trial site. 57% (n= 55/96) of hospitals achieved intervention delivery using an inclusive definition of fidelity. Delivery of the ASOS-2 interventions and data collection presented a significant burden to the investigators, outstripping limited resources. The influences most associated with fidelity were: surgical staff enthusiasm for the trial (OR 3.0 (95% confidence interval 1.3-7.0)); nursing management support of the trial (OR 2.6 (1.1-6.5)); performance of a dummy run (OR 2.6(1.1-6.1)); nursing colleagues seeing the value of the intervention(s) (OR 2.1 (0.9-5.7)), and the principal investigator's belief in the effectiveness of the intervention (OR 3.2 (1.2-9.4)). ASOS-2 has proved that coordinated interventional research across Africa is possible but delivering the ASOS-2 interventions was a major challenge for many investigators. Future improvement science efforts must include better planning for intervention delivery, additional support to investigators and the promotion of strong inter-professional teamwork.
The Lancet Global Health, 2021
Summary Background Risk of mortality following surgery in patients across Africa is twice as high... more Summary Background Risk of mortality following surgery in patients across Africa is twice as high as the global average. Most of these deaths occur on hospital wards after the surgery itself. We aimed to assess whether enhanced postoperative surveillance of adult surgical patients at high risk of postoperative morbidity or mortality in Africa could reduce 30-day in-hospital mortality. Methods We did a two-arm, open-label, cluster-randomised trial of hospitals (clusters) across Africa. Hospitals were eligible if they provided surgery with an overnight postoperative admission. Hospitals were randomly assigned through minimisation in recruitment blocks (1:1) to provide patients with either a package of enhanced postoperative surveillance interventions (admitting the patient to higher care ward, increasing the frequency of postoperative nursing observations, assigning the patient to a bed in view of the nursing station, allowing family members to stay in the ward, and placing a postoperative surveillance guide at the bedside) for those at high risk (ie, with African Surgical Outcomes Study Surgical Risk Calculator scores ≥10) and usual care for those at low risk (intervention group), or for all patients to receive usual postoperative care (control group). Health-care providers and participants were not masked, but data assessors were. The primary outcome was 30-day in-hospital mortality of patients at low and high risk, measured at the participant level. All analyses were done as allocated (by cluster) in all patients with available data. This trial is registered with ClinicalTrials.gov, NCT03853824. Findings Between May 3, 2019, and July 27, 2020, 594 eligible hospitals indicated a desire to participate across 33 African countries; 332 (56%) were able to recruit participants and were included in analyses. We allocated 160 hospitals (13 275 patients) to provide enhanced postoperative surveillance and 172 hospitals (15 617 patients) to provide standard care. The mean age of participants was 37·1 years (SD 15·5) and 20 039 (69·4%) of 28 892 patients were women. 30-day in-hospital mortality occurred in 169 (1·3%) of 12 970 patients with mortality data in the intervention group and in 193 (1·3%) of 15 242 patients with mortality data in the control group (relative risk 0·96, 95% CI 0·69–1·33; p=0·79). 45 (0·2%) of 22 031 patients at low risk and 309 (5·6%) of 5500 patients at high risk died. No harms associated with either intervention were reported. Interpretation This intervention package did not decrease 30-day in-hospital mortality among surgical patients in Africa at high risk of postoperative morbidity or mortality. Further research is needed to develop interventions that prevent death from surgical complications in resource-limited hospitals across Africa. Funding Bill & Melinda Gates Foundation and the World Federation of Societies of Anaesthesiologists. Translations For the Arabic, French and Portuguese translations of the abstract see Supplementary Materials section.
Angiology, 2008
Background: Diabetes mellitus is associated with a higher incidence of acute myocardial infarctio... more Background: Diabetes mellitus is associated with a higher incidence of acute myocardial infarction. Objective: To study the prevalence and outcome of patients with diabetes among patients with acute myocardial infarction. Methods: Retrospectively, patients who presented with acute myocardial infarction in a 10-year period were identified from the coronary care unit database. Results: A total of 1598 Qatari patients were admitted with acute myocardial infarction, 863 (54%) of them had diabetes mellitus (females 68.5% vs males 48.3%; P < .001). In-hospital mortality rate was non-significantly higher in diabetic patients (18% vs 15% P = .15). Aspirin (odds ratio 2.39, 95% confidence interval 1.96-2.90, P = .003] and β-blocker use (odds ratio 1.75, 95% CI 1.21-2.52, P = .0001) were independently associated with reduced mortality risk. Conclusions: The prevalence of diabetes mellitus among patients with acute myocardial infarction in a geographically defined population in the developi...
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Papers by Babangida Mohammed