Results 1 to 10 of about 1,186,521 (307)

Determination of Local Stresses and Strains within the Notch Strain Approach: The Efficient and Accurate Calculation of Notch Root Strains Using Finite Element Analysis

open access: yesApplied 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

Exercise challenge alters Default Mode Network dynamics in Gulf War Illness

open access: yesBMC 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

Sleep and PTSD in the Military Forces: A Reciprocal Relationship and a Psychiatric Approach

open access: yesBrain 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

ON FATIGUE. [PDF]

open access: yesThe Lancet, 1875
n ...
openaire   +1 more source

Resting state connectivity correlates with drug and placebo response in fibromyalgia patients

open access: yesNeuroImage: Clinical, 2014
Fibromyalgia is a chronic pain syndrome characterized by widespread pain, fatigue, and memory and mood disturbances. Despite advances in our understanding of the underlying pathophysiology, treatment is often challenging.
T. Schmidt-Wilcke   +7 more
doaj   +1 more source

Reconfigurations in brain networks upon awakening from slow wave sleep: Interventions and implications in neural communication

open access: yesNetwork 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

Relationships between brain metabolite levels, functional connectivity, and negative mood in urologic chronic pelvic pain syndrome patients compared to controls: A MAPP research network study

open access: yesNeuroImage: Clinical, 2018
Until recently, the predominant pathology of chronic pelvic pain conditions was thought to reside in the peripheral tissues. However, mounting evidence from neuroimaging studies suggests an important role of the central nervous system in the pathogenesis
Daniel E. Harper   +7 more
doaj   +1 more source

Finite-element method for the analysis of surface stress concentration factor and relative stress gradient for machined surfaces [PDF]

open access: yesMechanical 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

Daytime Exposure to Blue-Enriched Light Counters the Effects of Sleep Restriction on Cortisol, Testosterone, Alpha-Amylase and Executive Processes

open access: yesFrontiers in Neuroscience, 2020
Sleep debt is becoming a better acknowledged cause of physiological stress and neurobehavioral deficits with major public-health concerns. We investigated whether exposure to blue light during daytime could be an efficient countermeasure to limit sleep ...
Brice Faraut   +19 more
doaj   +1 more source

FATIGUE. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1906
n ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy