Results 1 to 10 of about 55,411 (145)

Influence of Oxygen Management on Color and Phenolics of Red Wines

open access: yesMolecules, 2023
Winemaking involves contact at different stages with atmospheric oxygen, the consumption of which determines its final properties. The chemical analysis of red wines subjected to consecutive cycles of air saturation has been extensively researched ...
Marioli Carrasco-Quiroz   +5 more
doaj   +1 more source

Spatial Variations in Vitreous Oxygen Consumption. [PDF]

open access: yesPLoS ONE, 2016
We investigated the spatial variation of vitreous oxygen consumption in enucleated porcine eyes. A custom made oxygen source was fabricated that could be localized to either the mid or posterior vitreous cavity and steady state vitreous oxygen tension ...
Karthik Murali   +7 more
doaj   +1 more source

The Effect of a Single Dose of Thiamine on Oxygen Consumption in Patients Requiring Mechanical Ventilation for Acute Illness: A Phase II, Randomized, Double-Blind, Placebo-Controlled Trial

open access: yesCritical Care Explorations, 2021
IMPORTANCE:. Lower oxygen consumption is associated with worse survival in septic shock and in other forms of critical illness. No treatment that increases oxygen extraction, a key determinant of oxygen consumption, has been found.
Katherine M. Berg, MD   +4 more
doaj   +1 more source

EFFECT OF HYDROGEN ION AND OXYGEN CONCENTRATIONON RESPIRATION PHYSIOLOGY ON SEAWATER SNAILPLANAXIS SULCATUS [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
The effect of some exogenous factors such as oxygen concentration and hydrogen ions concentration on the rate of oxygen consumption of seawater snail Planaxis sulcatus .
JASSIM M. ALI, SUADOD O. AL-KHATEEB
doaj   +1 more source

May oxygen depletion explain the FLASH effect? A chemical track structure analysis [PDF]

open access: yes, 2021
Background and purpose: Recent observations in animal models show that ultra-high dose rate ("FLASH") radiation treatment significantly reduces normal tissue toxicity maintaining an equivalent tumor control. The dependence of this "FLASH" effect on target oxygenation has led to the assumption that oxygen "depletion" could be its major driving force ...
arxiv   +1 more source

Does FLASH deplete Oxygen? Experimental Evaluation for Photons, Protons and Carbon Ions [PDF]

open access: yes, 2021
Purpose: To investigate experimentally, if FLASH irradiation depletes oxygen within water for different radiation types such as photons, protons and carbon ions. Methods: This study presents measurements of the oxygen consumption in sealed, 3D printed water phantoms during irradiation with X-rays, protons and carbon ions at varying dose rates up to ...
arxiv   +1 more source

Baseline oxygen consumption decreases with cortical depth.

open access: yesPLoS Biology, 2022
The cerebral cortex is organized in cortical layers that differ in their cellular density, composition, and wiring. Cortical laminar architecture is also readily revealed by staining for cytochrome oxidase-the last enzyme in the respiratory electron ...
Philipp Mächler   +20 more
doaj   +1 more source

Oxygen depletion hypothesis remains controversial: a mathematical model of oxygen depletion during FLASH radiation [PDF]

open access: yesRadiation Research . 2022. 197(2):175-183, 2020
Background: Experiments have reported low normal tissue toxicities during FLASH radiation, but the mechanism has not been elaborated. Several hypotheses have been proposed to explain the mechanism. The oxygen depletion hypothesis has been introduced and mostly studied qualitatively.
arxiv   +1 more source

Dynamic characteristics of oxygen consumption

open access: yesBioMedical Engineering OnLine, 2018
Background Previous studies have indicated that oxygen uptake ($$VO_2$$ VO2 ) is one of the most accurate indices for assessing the cardiorespiratory response to exercise.
Lin Ye   +5 more
doaj   +1 more source

Anaesthesia-Specifi c Oxygen Transport Assessment in Robot-Assisted Pelvic Surgery: a Clinical Trial

open access: yesКреативная хирургия и онкология, 2021
Background. Robot-assisted pelvic surgery rapidly becomes a choice in surgeries for gynaecological oncology and urology. These interventions require special settings (pneumoperitonaeum and Trendelenburg position), which inevitably and systemically impact
I. I. Lutfarakhmanov   +8 more
doaj   +1 more source

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