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Potassium Nitrate in Heart Failure With Preserved Ejection Fraction: A Randomized Clinical Trial.
JAMA Cardiol
December 2024
Perelman School of Medicine, University of Pennsylvania, Philadelphia.
Importance: Nitric oxide deficiency may contribute to exercise intolerance in patients with heart failure with preserved ejection fraction (HFpEF). Prior pilot studies have shown improvements in exercise tolerance with single-dose and short-term inorganic nitrate administration.
Objective: To assess the impact of chronic inorganic nitrate administration on exercise tolerance in a larger trial of participants with HFpEF.
Thermal deformation compensation scheme to the sub-nanometre level of a piezoelectric offset mirror for MHz repetition rate free-electron laser.
J Synchrotron Radiat
January 2025
Dalian Coherent Light Source and State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, People's Republic of China.
Free-electron laser (FEL) facilities operating at MHz repetition rates can emit lasers with average powers reaching hundreds of watts. Partial absorption of this power induces thermal deformation of a few micrometres on the mirror surface. Such deformation degrades the characteristics of the reflected photon beam, leading to focal spot aberrations and wavefront distortions that fail to meet experimental requirements.
View Article and Find Full Text PDFGenetic control of root/shoot biomass partitioning in barley seedlings.
Front Plant Sci
December 2024
Aula Dei Experimental Station, EEAD, CSIC, Zaragoza, Spain.
Article Synopsis
- * An experiment involving a recombinant inbred line (RIL) population from two Spanish barley landraces showed genetic control over seedling biomass partitioning, identifying significant differences in dry weight between shoots and roots.
- * A QTL analysis revealed a significant QTL related to biomass partitioning located on chromosome 5H, leading to the identification of five candidate genes that may play a role in this process, warranting further investigation.
Effects of Partially Filled EPS Foam on Compressive Behavior of Aluminum Hexagonal Honeycombs.
Materials (Basel)
December 2024
The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB), Pracharat 1 Road, Bangkok 10800, Thailand.
This study investigates the compressive behavior of aluminum honeycombs partially filled with expanded polystyrene (EPS) foam, emphasizing the effects of filler area fractions and vertex contact locations on energy absorption and crush characteristics. Axial quasi-static compression tests evaluated energy absorption, mean crush force, specific energy absorption, and crush force efficiency. Results revealed that partially filled honeycombs significantly enhance energy absorption and mean crush force compared to their unfilled counterparts.
View Article and Find Full Text PDFWater Sorption Properties and Hydrothermal Stability of Al-Containing Metal-Organic Frameworks CAU-10 and MIL-96 Studied Using Quasi-Equilibrated Thermodesorption.
Molecules
November 2024
Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland.
A novel experimental technique, quasi-equilibrated temperature-programmed desorption and adsorption (QE-TPDA), was used to study the water sorption properties and hydrothermal stability of aluminum trimesate MIL-96 and aluminum isophthalate CAU-10, which have been selected due to their remarkable sorption properties. The QE-TPDA profiles of water observed for MIL-96 and CAU-10 confirmed the hydrophilic nature of these materials. Complex QE-TPDA profiles indicate that water sorption in MIL-96 follows a three-step pore filling mechanism.
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