Results 21 to 30 of about 662,498 (269)

A multi-modal MRI study of the central response to inflammation in rheumatoid arthritis

open access: yesNature Communications, 2018
Many diseases, such as rheumatoid arthritis, are characterized by a chronic inflammatory state, but it is not clear whether or how this affects the brain. Here, the authors show that the severity of on-going inflammation predicts altered functional brain
Andrew Schrepf   +9 more
doaj   +1 more source

Work schedule and seasonal influences on sleep and fatigue in helicopter and fixed-wing aircraft operations in extreme environments

open access: yesScientific Reports, 2022
Sleep and fatigue were investigated in aviation search and rescue, firefighting, emergency medical services and offshore transfer operations in 210 participants, for 21 days each, across 17 datasets in seven countries.
Adam Fletcher   +4 more
doaj   +1 more source

Fatigue Analysis of Threaded Components with Cd and Zn-Ni Anticorrosive Coatings

open access: yesMetals, 2021
The influence of the electrodeposition of cadmium and zinc-nickel and the stress concentration effect on the fatigue behavior of AISI 4140 steel threaded components were studied. Axial fatigue tests at room temperature with a stress ratio of R = 0.1 were
Jefferson Rodrigo Marcelino dos Santos   +3 more
doaj   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

Corrosion Fatigue Crack Growth Studies on Pressure Vessel and Piping Steels in Water Environment

open access: yesArchives of Metallurgy and Materials, 2017
Corrosion fatigue crack growth studies were conducted on eccentrically-loaded single edge notch tension specimens made of SA 333 Gr. 6 and SA 516 Gr. 70 carbon steels in water environment. The experiments were conducted using a ±250 kN capacity Universal
Mathew N.M.   +3 more
doaj   +1 more source

Split sleeve cold expansion of AZ31B sheet: Microstructure, texture and residual stress

open access: yesMaterials & Design, 2020
Despite magnesium limited formability at room temperature, split sleeve hole cold expansion of AZ31B sheet was successfully implemented. Microstructural analysis showed greater hardness in the immediate vicinity of the notch, which was due to high ...
Sasan Faghih   +3 more
doaj   +1 more source

Criterion‐Related Validity of the Neuropsychological Quick Assessment for Screening Cognitive, Motor, and Behavioral Impairments in Patients With Pediatric Brain Tumors: An Observational Pilot Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Neuropsychological complications may impair the qualitative prognosis of patients with pediatric brain tumors. However, multifaceted evaluations cannot be conducted in all patients because they are time consuming and burdensome for patients.
Ami Tabata   +9 more
wiley   +1 more source

A continuous approach to explain insomnia and subjective-objective sleep discrepancy

open access: yesCommunications Biology
Understanding insomnia is crucial for improving its diagnosis and treatment. However, many subjective complaints about insomnia do not align with objective measures of sleep quality, as is the case in subjective-objective sleep discrepancy (SOSD).
Rubén Herzog   +6 more
doaj   +1 more source

On Scaled Normal Stresses in Multiaxial Fatigue and Their Exemplary Application to Ductile Cast Iron

open access: yesApplied Mechanics, 2022
The approaches used to calculate the fatigue life of components must inevitably consider multiaxial stresses. Compared to proportional loading, the calculation of nonproportional loading is particularly challenging, especially since different materials ...
Michael Wächter   +7 more
doaj   +1 more source

Parent Quality of Life at Two Years Following Their Child's Completion of Acute Lymphoblastic Leukemia Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra   +3 more
wiley   +1 more source

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