Results 21 to 30 of about 174 (89)

Valmet Chiral Schiff‐Base Ligands And Their Copper(II) Complexes as Organo, Homogeneous and Heterogeneous Catalysts for Henry, Cyanosilylation and Aldol Coupling Reactions

open access: yesChemCatChem, Volume 13, Issue 21, Page 4634-4644, November 8, 2021., 2021
Immobilization: L‐ and D‐valmet ligands prepared from the condensation of o‐vanillin and L‐, respectively, D‐methionine exhibit a different catalytic behavior affording asymmetric Henry condensation, cyanosilylation reaction after complexation with copper or the Aldol reaction after the immobilization of these complexes onto GO.
Zinnia Arora   +10 more
wiley   +1 more source

High‐throughput determination of oxygen dissociation curves in a microplate reader—A novel, quantitative approach

open access: yesPhysiological Reports, Volume 9, Issue 16, August 2021., 2021
Hemoglobin oxygen dissociation curves are measured using a modified, commercial 96‐well plate with an integrated unidirectional gas‐flow system specifically adapted for use in fluorescence microplate readers. Up to 92 samples of whole or hemolyzed, buffered or unbuffered blood, including appropriate controls or internal standard hemoglobin solutions ...
Simon Woyke   +6 more
wiley   +1 more source

EFFECTS OF ISCHEMIA AND REPERFUSION ON THE LOCAL REGULATION OF OXYGEN CONSUMPTION, TISSUE OXYGENATION AND BLOOD SUPPLY IN RAT SKELETAL MUSCLE. [PDF]

open access: yes, 2013
In resting muscle, blood flow is regulated to meet the demand for O2 by the tissue. A modified ischemia (I)/reperfusion(R) investigation was systematically run and PISFO2, PaO2, Q and VO2 were observed.
Dodhy, Sami
core   +1 more source

Comparisons of oxygen metabolism and tissue PO2 in cortex and hippocampus of gerbil brain.

open access: yes, 1987
Recessed oxygen microelectrodes (tip diameter less than 2 microns) were positioned stereotactically into either the cerebral cortex or the hippocampus of sodium pentobarbital anesthetized gerbils (n = 21).
D G Buerk, P K Nair, J H Halsey
core   +1 more source

Method of meal delivery influences estimates of postprandial metabolism and alkaline tide in a benthic fish

open access: yesJournal of Fish Biology, EarlyView.
Abstract Intragastric gavage is widely used in studies of digestive physiology to deliver standardised meals, yet it remains unclear whether it elicits postprandial metabolic and acid–base responses comparable to voluntary feeding. Here, we tested whether the method of meal delivery affects the magnitude and timing of the postprandial rise in metabolic
Junlin Chen   +2 more
wiley   +1 more source

Oxygen transmission rate in American oak barrel staves used for wine aging: Influence of wood macrostructure

open access: yesJournal of the Science of Food and Agriculture, Volume 106, Issue 13, Page 7844-7857, October 2026.
Abstract Background Oak barrels are widely used in wine and spirit aging, where oxygen transmission plays a key role in the development of chemical and sensory properties. In cooperage, stave selection is traditionally based on grain width; however, the extent to which grain and wood macrostructure determine oxygen transmission under barrel conditions ...
Maria del Alamo‐Sanza   +3 more
wiley   +1 more source

Effects of Acclimation Temperature on Responses of Blackfoot Pāua (Haliotis iris) to Acute Temperature Change, Reduced Salinity and Progressive Hypoxia

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 3, September 2026.
Effects of acclimation temperature with acute temperature, reduced salinity or lowered dissolved oxygen are significant stressors to physiological and biological responses of adult Pāua. Pāua have a limited ability to acclimate to temperatures above 18 °C.
Thuy Thi Nguyen   +3 more
wiley   +1 more source

Bias‐Triggered Conductivity Relaxation (BCR): A Unique Tool to Simultaneously Investigate Thermodynamics, Kinetics, and Electrostatic Effects of Oxygen Reactions in MIEC Thin Films

open access: yesAdvanced Materials, Volume 38, Issue 43, 3 August 2026.
This work develops bias‐triggered conductivity relaxation as a novel technique to study oxygen reactions in mixed ionic‐electronic conducting thin films by integrating electrochemical titration and electrical conductivity relaxation to achieve synchronous multi‐parameter characterization, providing simultaneous electronic, ionic, and extraordinarily ...
Alexander Stangl   +4 more
wiley   +1 more source

Evaluating the Air Respiratory Capacity of Awaous (Chonophorus) tajasica (Gobiiformes: Oxudercidae): A Morpho‐Functional Study

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 5, Page 498-507, June 2026.
We demonstrated that Awaous tajasica performs facultative air breathing under experimental conditions of dissolved oxygen limitation, retaining air bubbles in the buccal cavity during gill ventilation. Morpho‐functional evidence indicates the use of atmospheric oxygen as a respiratory support under conditions of low water oxygenation.
João Pedro Trevisan   +3 more
wiley   +1 more source

Improving Oxygen Barrier Performance of Polylactide Film by Using Bleached and Unbleached Nanocellulose From Grape Pomace

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 14, April 10, 2026.
Bleached and unbleached nanocelluloses were produced from the exhausted grape pomace and applied as coatings on PLA substrates for sustainable food packaging. Unbleached nanocelluloses were more hydrophobic and amorphous than bleached ones. The resulting bio‐based bleached nanocellulose‐coated PLA films showed a 68% reduction in O2 permeability ...
Jingwen Chen   +6 more
wiley   +1 more source

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