Results 61 to 70 of about 7,259,360 (350)

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Pressure stabilizes ferrous iron in bridgmanite under hydrous deep lower mantle conditions

open access: yesNature Communications
Earth’s lower mantle is a potential water reservoir. The physical and chemical properties of the region are in part controlled by the Fe3+/ΣFe ratio and total iron content in bridgmanite.
Li Zhang   +7 more
doaj   +1 more source

High-temperature, high-pressure spherical segment valve Patent [PDF]

open access: yes, 1964
High-temperature, high-pressure spherical segment ...
Giovannetti, A., Jr.   +3 more
core   +1 more source

High-Pressure Synthesis of a Pentazolate Salt

open access: yes, 2016
The pentazolates, the last all-nitrogen members of the azole series, have been notoriously elusive for the last hundred years despite enormous efforts to make these compounds in either gas or condensed phases.
Crowhurst, Jonathan C.   +5 more
core   +4 more sources

New high-pressure phase and equation of state of Ce2Zr2O8 [PDF]

open access: yes, 2012
In this paper we report a new high-pressure rhombohedral phase of Ce2Zr2O8 observed from high-pressure angle-dispersive x-ray diffraction and Raman spectroscopy studies up to nearly 12 GPa.
A. K. Tyagi   +10 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

High pressure Hugoniot measurements using Mach waves [PDF]

open access: yes, 2012
Traditionally, most dynamic shock compression experiments are conducted using a plane one-dimensional wave of uniaxial strain. In this case, the evaluation of the equation of state is simplified due to the geometry, but the amplitude of the induced shock
Brown, J. L., Ravichandran, G.
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Application of machine learning for nanodiamonds shape and surface classification based on X-ray pattern analysis

open access: yesScientific Reports
Three Machine Learning algorithms, namely Random Forest, Neural Networks and Extreme Gradient Boosting, were applied to recognize the shape and surface structure of diamond nanoparticles from powder diffraction data.
Kazimierz Skrobas   +4 more
doaj   +1 more source

New paradigm for configurational entropy in glass-forming systems

open access: yesScientific Reports, 2022
We show that on cooling towards glass transition configurational entropy exhibits more significant changes than predicted by classic relation. A universal formula according to Kauzmann temperature $${T}_{K}$$ T K is given: $$S={S}_{0}{t}^{n}$$ S = S 0 t ...
Aleksandra Drozd-Rzoska   +2 more
doaj   +1 more source

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