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Re-emergence of Ebola virus disease in Uganda:Should Southeast Asia countries be worried?

Journal of Safety Science and Resilience 2023年第3期4卷 262-264页

作者： haruna muhammad daiyab Farouq muhammad Dayyab Department of Medicine Murtala Mohammed Specialist HospitalKanoNigeria Cardiac Intensive Care Unit Mohammed Bin KhalifaBin Salman Al Khalifa Cardiac CenterAwaliBahrain

An outbreak of Ebola virus disease(EVD)(Sudan virus)was first reported in the Republic of Uganda on September 20,*** of November 17,2022,151 confirmed cases have been reported,including 55 deaths(with a case fatality rate among confirmed cases of 39%).During the EVD outbreak in 2013–2016,international travel played a significant role in the spread of the disease across national *** that time,several tasks requiring improvement were identified in the World Health Organization(WHO)Southeast Asia Region(SEAR),including inadequate risk communication and risk assessment,data management gaps for surveillance purposes,inadequate capacity in molecular diagnostic techniques,lack of adequate planning for a surge of cases,and inadequate isolation *** is therefore recommended that all countries of the WHO SEAR revisit their level of Ebola preparedness and address existing *** emergence and rapid global spread of coronavirus disease 2019(COVID-19)have reiterated that the world has become a global *** was confirmed by the spread of the monkeypox virus with cases reported in the WHO ***,given the weak health infrastructure in the region,complacency could wreak havoc on the healthcare system if another epidemic emerges without an adequate level of preparedness.

关键词： Ebola Uganda Southeast Asia Outbreak

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Novel Algorithm for Mobile Robot Path Planning in Constrained Environment

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Computers, Materials & Continua 2022年第5期71卷 2697-2719页

作者： Aisha muhammad Mohammed A.H.Ali Sherzod Turaev Ibrahim haruna Shanono Fadhl Hujainah Mohd Nashrul Mohd Zubir muhammad Khairi Faiz Erma Rahayu Mohd Faizal Rawad Abdulghafor Faculty of Manufacturing Engineering Universiti Malaysia Pahang(UMP)Pekan26600Malaysia Department of Mechanical Engineering Faculty of EngineeringUniversity of Malaya50603Kuala LumpurMalaysia Department of Computer Science and Software Engineering College of Information TechnologyUnited Arab Emirates UniversityAl AinUnited Arab Emirates Faculty of Electrical and Electronics Engineering Universiti Malaysia Pahang(UMP)Pekan26600Malaysia Department of Mechatronics Engineering Faculty of TechnologyBayero UniversityKano(BUK)700241Nigeria Computer Science and Engineering Department Chalmers and University of Gothenburg41296GothenburgSweden Department of Artificial Intelligence Faculty of Computer Science and Information TechnologyUniversity of Malaya50603Kuala LumpurMalaysia Department of Computer Science Faculty of Information and Communication TechnologyInternational Islamic University Malaysia53100Kuala LumpurMalaysia

This paper presents a development of a novel path planning algorithm, called Generalized Laser simulator (GLS), for solving the mobilerobot path planning problem in a two-dimensional map with the presence ofconstraints. This approach gives the possibility to find the path for a wheelmobile robot considering some constraints during the robot movement inboth known and unknown environments. The feasible path is determinedbetween the start and goal positions by generating wave of points in alldirection towards the goal point with adhering to constraints. In simulation,the proposed method has been tested in several working environments withdifferent degrees of complexity. The results demonstrated that the proposedmethod is able to generate efficiently an optimal collision-free path. Moreover,the performance of the proposed method was compared with the A-star andlaser simulator (LS) algorithms in terms of path length, computational timeand path smoothness. The results revealed that the proposed method hasshortest path length, less computational time and the best smooth path. Asan average, GLS is faster than A∗ and LS by 7.8 and 5.5 times, respectivelyand presents a path shorter than A∗ and LS by 1.2 and 1.5 times. In orderto verify the performance of the developed method in dealing with constraints, an experimental study was carried out using a Wheeled Mobile Robot(WMR) platform in labs and roads. The experimental work investigates acomplete autonomous WMR path planning in the lab and road environmentsusing a live video streaming. Local maps were built using data from a live video streaming with real-time image processing to detect segments of theanalogous-road in lab or real-road environments. The study shows that theproposed method is able to generate shortest path and best smooth trajectoryfrom start to goal points in comparison with laser simulator.

关键词： Path planning generalized laser simulator wheeled mobile robot global path panning local path planning

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