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A two-phase multiobjective optimization for benchmarking and evaluating service quality in banks

International Journal of Intelligent Computing and Cybernetics 2018年第4期11卷 446-470页

作者： Femi emmanuel Ayo Department of Computer Science Federal University of AgricultureAbeokutaNigeria

Purpose–Service quality is an evaluation of how well a delivered service meets customers’*** purpose of this paper is to provide a reliable scale of measurement for service quality in ***/methodology/approach–The SERVQUAL model was adopted based on a Banking Service Quality(BSQ)model and a two-phase multiobjective optimization model was designed.A structured questionnaire with five-point Likert scale was administered with a 93 percent response rate of 270 sample size.A total of 22 variables were considered based on the BSQ model and the significance of these variables to customers’satisfaction were *** analysis was used to extract the most influential factors on the measure of service quality and four factors were selected namely:they deliver when promised,precision on account statements,queues that move rapidly and sufficient number of ATMs per *** order to determine the reliability of the multiple Likert questions in the survey,Cronbach’sαwas used indicating a scale reliability of ***,multiple regression analysis was carried out on the selected factors to design an objective function for the design and evaluation of service quality *** model design used for benchmarking was done using multiobjective genetic algorithm in ***,the model evaluation was done in a java interface using multiobjective particle swamp ***–The evaluation results validated the designed model and showed that the factors they deliver when promised and queues that move rapidly are a more reliable scale of measurement for customer’s satisfaction than the factors precision on account statements and sufficient number of ATMs per *** limitations/implications–The implication of the results is that effectiveness and assurance combined with access is a more significant factor for measuring customers’satisfaction than tangibles based on the BSQ ***/value–The introduction of a two-phase o

关键词： SERVQUAL Benchmarking BSQ Multiple regression Genetic algorithm(GA) Particle swamp optimization(PSO)

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Degradation of AZ31 and AZ91 magnesium alloys in different physiological media:Effect of surface layer stability on electrochemical behaviour

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Journal of Magnesium and Alloys 2020年第3期8卷 667-675页

作者： emmanuel Mena-Morcillo Lucien Veleva Applied Physics Department Center for Investigation and Advanced StudyCINVESTAV-IPNCarr.Ant.a Progreso Km.697310 MeridaYucatanMexico

This work deals with the degradation of AZ31 and AZ91 magnesium alloys when they are exposed to three types of physiological media for seven days at 37°C:Ringer's,Hanks\and simulated body fluid(SBF)solutions.A combination of immersions tests and surface characterisation methods were employed to evaluate the attack on the surface,and the stability of the formed corrosion product layers for each alloy/electrolyte *** of the Mg-ion released into the electrolytes were also carried out in order to be correlated with the degradation of the *** impedance spectroscopy(EIS)and potentiodynamic polarisation(PDP)techniques were employed to compare the performance of the alloys in these different aggressive *** to the obtained results,the Mg-alloys exposed to Hanks'media were the less affected,which fact was attributed to a higher stability of the corrosion products layer formed in this medium,in comparison of those formed in Ringer's and SBF *** add让ion,the corrosion damage was lower for AZ91 than for AZ31 alloy in all environments due to its higher Al *** mass loss rates calculated from both immersion tests and electrochemical methods followed the same trend for comparative purposes between alloys.

关键词： Mg-alloys AZ-series Surface layer Physiological media Mass loss rate Degradation

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Wear Behavior of a Bio-inspired Bearing for off-center Loads

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Journal of Bionic Engineering 2020年第6期17卷 1251-1262页

作者： Delphine Sysaykeo Jean-Marc Linares emmanuel Mermoz Alix-Marseile Universite CNRSCentre National de la Recherche ScientifiqueISMInstitut des Sciences du MouvementMarseille 13009France Advanced concepts and Dynamic systems architecture department Airbus HelicoptersAeroport International Marseille ProvenceMarignane 13700France

Misalignment is one of the most common causes of wear in bush *** improvements have been proposed by many ***,it did not efficiently reduce the *** geometrical designs sometimes reach their *** this reason,a bio-inspired design is proposed to solve the *** this article,a bio-inspired bearing suited to misalignment was tested and compared to a classical bush *** contact pressures of both bearings were compared with static Finite Element(FE)simulations for off-center *** to the complex shape of the involved contact,the performances of both bearings were also studied over *** wear behaviors were predicted with a numerical *** methodologies emplaced to simulate the wear were described in this ***,the wear coefficient determination obtained by experimental testing was *** pressure value,the contact zone and the wear depth were compared and *** wear results for the classical bearing are in accordance with the *** simulations show a deeper wear on the classical bush bearing than on the bio-inspired *** leads to a longer period of service life for the bio-inspired bearing.

关键词： biologically inspired design bush bearing wear simulation

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Effects of bionic non-smooth surface on reducing soil resistance to disc ploughing

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Science China(Technological Sciences) 2010年第11期53卷 2960-2965页

作者： CHIRENDE Benard SIMALENGA Timothy emmanuel Key Laboratory for Bionic Engineering of Ministry of Education of China Jilin University Agricultural Research Council Institute for Agricultural Engineering(South Africa)

Past researches have shown that the non-smooth body surfaces of soil burrowing animals help to reduce soil resistance. In this research, this concept of bionic non-smooth surface was applied to disc ploughs and an experiment was conducted in an indoor soil bin to find out the effects of different bionic units on reducing soil resistance to disc ploughing. Horizontal force acting on the disc plough during soil deformation was measured using a 5 kN sensor. Convex and concave bionic units were used and the material used for making convex ones is ultra high molecular weight polyethylene (UHMWPE) which is hydrophobic. From the experiment results, higher or deeper bionic units always resulted in less soil resistance. Convex bionic units gave the highest resistance reduction reaching a maximum of 19% reduction (from 1715.36 N to 1383.65 N) compared to concave bi-onic units. Also, samples with a bionic unit density of 30% gave the highest resistance reduction compared to the other two, which were either plain or had 10% density. In conclusion, the concept of bionic non-smooth units can be applied to disc ploughs in order to reduce soil resistance.

关键词： bionics disc plough soil resistance convex units concave units non-smooth surface

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A One Health approach to fight antimicrobial resistance in Uganda: Implementation experience, results, and lessons learned

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Biosafety and Health 2024年第2期6卷 125-132页

作者： Reuben Kiggundu J.P.Waswa Niranjan Konduri Hassan Kasuja Marion Murungi Patrick Vudriko Harriet Akello Eric Lugada Cecilia Muiva Esther Were Dinah Tjipura Henry Kajumbula Kate Kikule emmanuel Nfor Mohan P.Joshi USAID Medicines Technologiesand Pharmaceutical Services ProgramManagement Sciences for HealthKampala 256Uganda USAID Medicines Technologiesand Pharmaceutical Services ProgramManagement Sciences for HealthArlingtonVA 22203USA College of Veterinary Medicine Animal Resources and BiosecurityMakerere UniversityKampala 256Uganda Ministry of Health Uganda Kampala 256Uganda USAID Strengthening Supply Chain Systems Activity Management Sciences for HealthKampala 256Uganda USAID Medicines Technologiesand Pharmaceutical Services ProgramManagement Sciences for HealthNairobi 254Kenya Department of Microbiology College of Health SciencesMakerere UniversityKampala 256Uganda

Uganda has been implementing the Global Health Security Agenda(GHSA)since 2015 to build its capacity according to World Health Organization(WHO)Benchmarks on International Health Regulations *** country remains prone to outbreaks,with more than 20 disease outbreaks reported in the past five years,including Ebola virus disease,Crimean-Congo haemorrhagic fever,Marburg haemorrhagic fever,measles,yellow fever,coronavirus disease 2019(COVID-19),and *** resistance(AMR)is an ongoing *** scored capacity level 3 on infection prevention and control(IPC)and antimicrobial stewardship(AMS)in the 2017 Joint External Evaluation(JEE)*** gaps were being addressed after a self-assessment in *** paper describes the technical assistance approaches provided to Uganda by the Medicines,Technologies,and Pharmaceutical Services Program,funded by the United States(U.S.)Agency for International Development,and implemented by Management Sciences for *** program,through a One Health approach,supported systematic capacity strengthening based on the JEE's capacity advancement framework for global health security,specifically relating to *** program's interventions impacted 32 WHO benchmark actions(7 for AMR multisectoral coordination,16 for IPC,and 9 for AMS),contributing to Uganda's strengthened GHSA *** success built on the AMR platform,the program trained 745 health workers in IPC for the Ebola virus and provided support for simulation exercises by eight district IPC *** program also worked with the Ministry of Health to coordinate IPC for the COVID-19 response in five health regions,covering 45 districts and reaching 5,452 health workers at 858 health facilities.

关键词： One health Antimicrobial resistance Antibiotic resistance Jointexternal evaluation Global health security Uganda Africa WHO Benchmarks for International Health Regulations Capacities

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Constructing Damage Indices Based on Publicly Available Spatial Data:Exemplified by Earthquakes and Volcanic Eruptions in Indonesia

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International Journal of Disaster Risk Science 2021年第3期12卷 410-427页

作者： emmanuel Skoufias Eric Strobl Thomas Tveit Poverty and Equity Global Practice World BankWashingtonDC 20433USA Department of Economics University of Bern3012 BernSwitzerland

This article demonstrates the construction of earthquake and volcano damage indices using publicly available remote sensing sources and data on the physical characteristics of *** earthquakes we use peak ground motion maps in conjunction with building type fragility curves to construct a local damage *** volcanoes we employ volcanic ash data as a proxy for local *** indices are then spatially aggregated by taking local economic exposure into account by assessing nightlight intensity derived from satellite *** demonstrate the use of these indices with a case study of Indonesia,a country frequently exposed to earthquakes and volcanic *** results show that the indices capture the areas with the highest damage,and we provide overviews of the modeled aggregated damage for all provinces and districts in Indonesia for the time period 2004 to *** indices were constructed using a combination of software programs—ArcGIS/Python,Matlab,and *** also outline what potential freeware alternatives ***,for each index we highlight the assumptions and limitations that a potential practitioner needs to be aware of.

关键词： Damage indices Indonesia Natural hazard modeling Remote sensing data

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Delonix regia and Casuarina equisetifolia as passive biomonitors and as bioaccumulators of atmospheric trace metals

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Journal of Environmental Sciences 2010年第7期22卷 1073-1079页

作者： emmanuel Ehiabhi Ukpebor Justina Ebehirieme Ukpebor emmanuel Aigbokhan Idris Goji Alex Okiemute Onojeghuo Anthony Chinedum Okonkwo Air Pollution Research Group Department of ChemistryUniversity of Benin Lancaster Environment Centre Lancaster University Department of Botany University of Benin Federal Ministry of Environment and Housing

The suitability of two common and ubiquitously distributed and exotic ornamental plant species in Nigeria-Delonix regia and Casuarina equisetifolia as biomonitors and as effective bioaccumulators of atmospheric trace metals （Cd, Pb, Zn and Cu） has been evaluated. Bark and leaf samples from these plant species were collected in June and July 2006 at five locations in Benin City. Four of the sampling sites were in areas of high traffic density and commercial activities, the fifth site is a remote site, selected to act as a control and also to provide background information for the metals. The plant samples were collected and processed using standard procedures and trace metals were determined using atomic absorption spectrometer. The bark of the plants was able to bioaccumulate the trace metals, especially Pb which originates from anthropogenic contributions in the city. The Pb range of 20.00-70.00 μg/g measured for the bark samples ofD. regia, exceeded the normal plant Pb concentration of 0.2-20.0 μg/g and most Pb data available in literature. The bark of the plants was observed to accumulate more metals compared to the leave, while D. regia was found to be slightly better than C. equisetifolia in trace metal uptake efficiency. Spatial variations in the distributions of Pb and Zn were significant （p 〈 0.05）, and the continuous use of leaded fuel in Nigeria was identified as the predominant source of Pb in the atmosphere.

关键词： passive biomonitors trace metals Delonix regia Casuarina equisetifolia

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Evaluating the Impact of the Universal Test and Treat Strategy on the Survival of Patients in the Northwest Region of Cameroon

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World Journal of AIDS 2024年第3期14卷 45-60页

作者： emmanuel Mboh Nshom Bereynuy Jude Cholong Kum Kang Walter Khan Eveline Mboh Keng Vitalis Noela F. Ijang Gwendoline Nkenu Nsom Mirabel Mbueh Vifeme Esther Bonje Kuni Monju Johnson Vishi Gladys Enih Fosah Pius Muffih Tih AIDS Care and Prevention Program Cameroon Baptist Convention Health Services Bamenda Cameroon Regional Technical Group for the Fight against HIV and AID Northwest Region Cameroon

Introduction: The main outcome of efficiently implemented universal test and treat (UTT) program is improved survival. UTT implementation has been ongoing in Cameroon since 2016 but evaluation data are scarce. This study aims to assess the survival of antiretroviral therapy (ART) patients initiated under UTT in Northwest region of Cameroon. Methods: This retrospective cohort study included HIV-positive patients initiated in 2016 at 27 purposefully selected sites and followed until 2021. Data was anonymously abstracted from ART registers and patients’ charts. Kaplan-Meier survival estimates and Cox model were used to compare the survival of patients initiated under UTT with those initiated otherwise, using stata version 14.0. Results: In total, 2490 HIV-positive patients (median age 42.7 years, 94.7% adults, and 69.0% female) participated in the study. Of 1389 patients with viral load (VL) test results, 55% were initiated on ART late. The VL suppression rate of patients initiated late and those initiated early were similar. During follow-up, 1020 (40.9%) participants censored. The survival curves of patients initiated early on ART and those initiated late were similar during the first 2.5 years of follow-up but significantly (p Conclusions: This study confirms the expected impact of UTT. Programs only need to close existing implementation gaps along the critical pathways (diagnosis and treatment) of UTT, focusing more on males.

关键词： Universal Test and Treat Viral Load Survival Northwest Cameroon

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Volcanic Risk Perception and Coping Strategies from Mounts Cameroon and Nyiragongo Eruptions, Central Africa: A Comparative Analysis

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Journal of Geoscience and Environment Protection 2024年第6期12卷 161-189页

作者： Mabel N. Wantim Innocent Bradriyo Asong F. Zisuh Louis M. Balgawa Mero Yannah Katcho Karume Nde-Fon Peter Bih Amban Nchini L. Wayih emmanuel V. Yenshu Samuel N. Ayonghe Unit of Disaster Risk Management Department of Environmental Science University of Buea Buea Cameroon Observatoire Volcanologique de Goma (OVG) Goma Democratic Republic of the Congo Institute of Geological and Mining Research (IRGM) Yaounde Cameroon Faculty of Health Sciences University of Buea Buea Cameroon Faculty of Social and Management Sciences University of Buea Buea Cameroon

Approximately 2,000,000 people are exposed to volcanic risks in communities situated at the flanks of Mounts Cameroon (MC) and Nyiragongo (MN) volcanoes in Central Africa. This study therefore sought to investigate risk perception from four previous eruptions of MC, namely the 1959, 1982, 1999, and 2000 eruptions;and two previous eruptions of MN: 1977 and 2002. The study was initiated with co-design workshops held with major stakeholders in the cities of Buea and Goma at the flanks of MC and MN, respectively, in 2017, to develop the research objectives for the study. A non-random questionnaire survey was later conducted within 14 and 15 communities in Buea and Goma respectively, on the effects, perceived risks, and coping strategies for the chosen eruptions. Three age groups (18 - 30, 31 - 45 and >45 years) and gender (male and female) were considered. The population at the flanks of both volcanoes cited scientific and indigenous factors to be responsible for eruptions from these volcanoes. At MC and MN, ≥45% of the sampled participants (with a higher female population) perceived that the sampled eruptions posed a very high risk to the population. In terms of the effects, the age group of 18 - 30 was the least knowledgeable. In terms of direct effect on persons, over 90% of participants at MC and MN attested that they were overcome by fear/panic. On measures to cope with any likely eruption, the following order was established at the flanks of both volcanoes: sensitization of population, use of religious (prayers) and of traditional/indigenous strategies. In terms of future coping strategies, while the males at MC maintained sensitization as the favourite option, 62% of the males at MN opted for traditional/indigenous strategies. The female population at both MC and MN showed a higher preference for religious strategies like prayers.

关键词： Risk Perception Mount Cameroon Mount Nyiragongo Indigenous Buea Goma

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Management of Vulnating Esophageal Foreign Bodies in Burkina Faso

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第2期13卷 135-148页

作者： Ibrahima Diallo Aboubacar Gouéta Alseny Camara Assoumi Anatou Biga Mama Brigitte Ouoba Edi emmanuel Martial Nao Moustapha Sérémé Bertin Priva Ouédraogo Yvette Marie Chantal Gyébré Abdoulaye Keita Alpha Oumar Diallo ENT and HNS Department Yalgado Ouédraogo University Hospital Ouagadougou Burkina Faso ENT and HNS Department Bogodogo University Hospital Ouagadougou Burkina Faso ENT and HNS Department Tengandogo University Hospital Ouagadougou Burkina Faso ENT and HNS Department Conakry University Hospital Conakry Guinea

Introduction: Esophageal foreign bodies (EFB) are a diagnostic and therapeutic emergency because of the serious complications they can cause. Aim: This paper aimed to study the vulnating esophageal foreign bodies in the ENT and Head and Neck Surgery departments of the Yalgado Ouedraogo and Bogodogo University Hospital. Methodology: This was an analytic cross-sectional study with retrospective data collection over 10 years (2012-2021). Results: We collected 91 cases of vulnating esophageal foreign bodies, i.e. 9.1 cases/year (4.7%). The mean age of the patients was 14 ± 19 years. The sex ratio was 1.6. The circumstances of occurrence were dominated by accidental ingestion of vulnating esophageal foreign bodies (98.9%). The average time to consultation was 7.5 hours. Dysphagia was the dominant symptom (64.8%). Cervico-thoracic radiography found dual contour radiopaque images in 71.4%. Esophagoscopy with rigid tube was performed in 97.8%. The average time for extraction of the vulnating esophageal foreign bodies was 8 hours. Vulnerating esophageal foreign bodies were non-organic in 84.6%. The button cell represented 64.8%. Their location was cervical in 61.5% intraoperatively. The lesion assessment found ulcerative lesions in 42.9% (p Conclusion: Vulnating esophageal foreign bodies are relatively frequent in our ENT practice. Although their diagnosis is often easy, their treatment is still difficult and requires multidisciplinary management. Thus, for us, prevention remains the first effective weapon.

关键词： Foreign Bodies Esophagus Vulnerable Management Sequelae

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