Results 11 to 20 of about 1,365,433 (369)
Digital radiography image quality evaluation using various phantoms and software
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas +4 more
wiley +1 more source
COVID‐19 and the risk of Alzheimer's disease, amyotrophic lateral sclerosis, and multiple sclerosis
Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1953-1961, December 2022., 2022 Abstract Background The coronavirus disease 2019 (COVID‐19) pandemic has had an unprecedented impact on the healthcare system, economy, and society. Studies have reported that COVID‐19 may cause various neurologic symptoms, including cognitive impairment.
Hanyu Zhang, Zengyuan Zhou
wiley +1 more source
Applied Sciences, 2021 For the service life estimation of metallic components under cyclic loading according to strain-based approaches, a simulation of the elastic-plastic stress–strain path at the point of interest is necessary.
Lukas Masendorf +3 more
doaj +1 more source
Sleep and PTSD in the Military Forces: A Reciprocal Relationship and a Psychiatric Approach
Brain Sciences, 2021 Sleep disturbances are well-recognised symptoms of Post-Traumatic Stress Disorder (PTSD). This review updates knowledge regarding the relationship between sleep during deployment, combat-related trauma, and PTSD in military personnel, from which the ...
Emeric Saguin +4 more
doaj +1 more source
medRxiv, 2020 Fatigue is a common symptom in those presenting with symptomatic COVID-19 infection. However, it is unknown if COVID-19 results in persistent fatigue in those recovered from acute infection.
L. Townsend +20 more
semanticscholar +1 more source
Network Neuroscience, 2023 Sleep inertia is the brief period of impaired alertness and performance experienced immediately after waking. Little is known about the neural mechanisms underlying this phenomenon.
Cassie J. Hilditch +9 more
doaj +1 more source
Finite-element method for the analysis of surface stress concentration factor and relative stress gradient for machined surfaces [PDF]
Mechanical Sciences, 2023 Surface topography is an important parameter for evaluating the quality of surface machining, and the stress concentrations produced at notches can have a profound effect on the fatigue life of notched components. The stress concentration factor (SCF, Kt)
G. Xu +11 more
doaj +1 more source
Journal of Clinical Nursing, 2020 AIMS AND OBJECTIVES To evaluate compassion fatigue, burnout, compassion satisfaction, and perceived stress in healthcare professionals during the COVID-19 health crisis in Spain.
M. D. Ruíz-Fernández +5 more
semanticscholar +1 more source
Exercise challenge alters Default Mode Network dynamics in Gulf War Illness
BMC Neuroscience, 2019 Background Gulf War Illness (GWI) affects 30% of veterans from the 1991 Gulf War and has no known cause. Everyday symptoms include pain, fatigue, migraines, and dyscognition. A striking syndromic feature is post-exertional malaise (PEM).
Rakib U. Rayhan +6 more
doaj +1 more source