Results 41 to 50 of about 9,586,286 (339)

Measurement of Activation Volume for Creep of Dry Olivine at Upper‐Mantle Conditions

open access: yesJournal of Geophysical Research: Solid Earth, 2018
Olivine is the most abundant and among the weakest phases in Earth's upper mantle, and thus, its rheological properties play a critical role in governing thermal structure and convective flow in the upper mantle. A persistent obstacle to constraining the
N. Dixon, W. Durham
semanticscholar   +1 more source

Activation volume and energy of bulk metallic glasses determined by nanoindentation

open access: yesMaterials & Design (1980-2015), 2018
Nanoindentation strain-rate jump testing was used to determine activation volumes and energies of various metallic glasses and composites. Three different single phase metallic glasses and three composites (two with amorphous/crystalline Cu and one with ...
L. Krämer   +4 more
semanticscholar   +1 more source

Strain-rate sensitivity of high-entropy alloys and its significance in deformation

open access: yesMaterials Research Letters, 2019
Strain-rate dependence in face centered cubic high entropy alloys still remains controversial despite extensive efforts on this topic. Strain-rate sensitivity reflects underlying thermally-activated deformation and the controversy boils down to the ...
Jongun Moon   +5 more
doaj   +1 more source

TRPing on Cell Swelling - TRPV4 Senses It

open access: yesFrontiers in Immunology, 2021
The transient receptor potential vanilloid 4 channel (TRPV4) is a non-selective cation channel that is widely expressed and activated by a range of stimuli.
Trine L. Toft-Bertelsen, Nanna MacAulay
doaj   +1 more source

Effect of lattice volume and strain on the conductivity of BaCeY-oxide ceramic proton conductors

open access: yes, 2012
In-situ electrochemical impedance spectroscopy was used to study the effect of lattice volume and strain on the proton conductivity of the yttrium-doped barium cerate proton conductor by applying the hydrostatic pressure up to 1.25 GPa.
Artur Braun   +26 more
core   +1 more source

Linking high and low temperature plasticity in bulk metallic glasses II: use of a log-normal barrier energy distribution and a mean field description of high temperature plasticity

open access: yes, 2013
A thermal activation model to describe the plasticity of bulk metallic glasses (Derlet and Maa\ss, Phil. Mag. 2013, DOI: 10.1080/14786435.2013.826396) which uses a distribution of barrier energies and some aspects of under-cooled liquid physics is ...
Derlet, P. M., Maass, R.
core   +1 more source

Serum levels of serotonin as a biomarker of newly diagnosed fibromyalgia in women: Its relation to the platelet indices

open access: yesJournal of Research in Medical Sciences, 2018
Background: This study aimed to assess the serum serotonin levels in the newly diagnosed fibromyalgia (FM) and to relate these levels to the presenting signs and symptoms. Materials and Methods: This case–control study included 35 healthy women (Group I)
Marwan S M Al-Nimer   +2 more
doaj   +1 more source

Entorhinal cortex volume is associated with episodic memory related brain activation in normal aging and amnesic mild cognitive impairment [PDF]

open access: yes, 2011
The present study examined the relationship between entorhinal cortex and hippocampal volume with fMRI activation during episodic memory function in elderly controls with no cognitive impairment and individuals with amnesic mild cognitive impairment ...
deToledo-Morrell, Leyla   +8 more
core   +1 more source

Diaphragmatic Activation Correlated with Lumbar Multifidus Muscles and Thoracolumbar Fascia by B-Mode and M-Mode Ultrasonography in Subjects with and without Non-Specific Low Back Pain: A Pilot Study

open access: yesMedicina, 2023
Background and Objectives: The diaphragm, the lumbar multifidus muscles, and the thoracolumbar fascia (TLF) execute an important role in the stability of the lumbar spine and their morphology has been modified in subjects with non-specific low back pain (
Alicia Martin Perez   +7 more
doaj   +1 more source

Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa   +3 more
wiley   +1 more source

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