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A fuzzy logic approach to improve the sensitivity of the rapid entire body assessment method.
Int J Occup Saf Ergon
January 2025
Institute for Future (IFF), Qingdao University, People's Republic of China.
Conventional ergonomic observation methods, such as rapid entire body assessment (REBA), are limited in their sensitivity and reliability, particularly in detecting changes in input variables. This study integrates fuzzy logic with the REBA method, utilizing trapezoidal membership functions to fuzzify the input variables. The center of gravity method was employed for defuzzification, and if-then rules were formulated to enhance the REBA method.
View Article and Find Full Text PDFMars Mission Communication Delays and Impact on Mission Controller Performance, Workload, and Stress.
Aerosp Med Hum Perform
January 2025
Background: Mission Controllers (MCs) are the main point of contact for space crews and are vital for successful human spaceflight. On a mission to Mars, there will be as long as 22-min one-way communication delays between the ground and the crew, causing major changes to current communication infrastructures.
Methods: This exploratory study assessed the impact of a 20-min one-way communication delay on MCs' task performance, workload, and stress levels under nominal and off-nominal conditions, conducted during a 21-d analog mission.
On face value: a ghost driver field study investigating interactions between pedestrians and a driverless vehicle with anthropomorphic displays.
Ergonomics
January 2025
Human Factors Research Group, University of Nottingham, University Park, Nottingham, United Kingdom.
In a novel, on-road study, using a 'Ghost Driver' to emulate an automated vehicle (AV), we captured over 10 hours of video (n = 520) and 64 survey responses documenting the behaviour and attitudes of pedestrians in response to the AV. Three prototype external human-machine interfaces (eHMIs) described the AV's behaviour, awareness and intention using elements of anthropomorphism: High (human face), Low (car motif), Abstract (partial representation of human features that lacked precise visual reference); these were evaluated against a (no eHMI) baseline. Despite many pedestrians reporting that they still relied on vehicular cues to negotiate their crossing, there was a desire/expectation expressed for explicit communication with future AVs.
View Article and Find Full Text PDFImpact of COVID-19 lockdown on low back pain in computer using working adults.
Arch Environ Occup Health
January 2025
Department of Physiotherapy, School of Allied Health Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India.
During the COVID-19 pandemic, the need for computer-users to work-from-home (WFH) has increased world-wide. This study aims to explore how the COVID-19 lockdown has affected pain in the lower-back of adult computer professionals. Individuals aged 20-55, both male and female, meeting inclusion criteria (computer/laptop WFH, worked more than an hour on a computer/laptop) were invited to participate voluntarily after providing informed consent.
View Article and Find Full Text PDFDevelopment of CPAP Overlay Interfaces for Efficient Administration of Aerosol Surfactant Therapy to Preterm Infants.
AAPS PharmSciTech
January 2025
Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA, United States of America.
The administration of surfactant aerosol therapy to preterm infants receiving continuous positive airway pressure (CPAP) respiratory support is highly challenging due to small flow passages, relatively high ventilation flow rates, rapid breathing and small inhalation volumes. To overcome these challenges, the objective of this study was to implement a validated computational fluid dynamics (CFD) model and develop an overlay nasal prong interface design for use with CPAP respiratory support that enables high efficiency powder aerosol delivery to the lungs of preterm infants when needed (i.e.
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