Results 71 to 80 of about 1,842,096 (265)

Observational evidence for a possible link between PAH emission and dust trap locations in protoplanetary disks

Astronomy & Astrophysics
Context. Polycyclic aromatic hydrocarbons (PAHs) are commonly detected in protoplanetary disks, but it is unclear what causes the wide range of intensities across the samples. Aims.
van der Marel Nienke, Ligterink Niels F. W., van der Werf Ryan, Temmink Milou, Pinilla Paola, Jia Bin, Bosschaart Quincy   +6 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

pH Dependence of Amyloid-β Fibril Assembly Kinetics: Unravelling the Microscopic Molecular Processes. [PDF]

Angew Chem Int Ed Engl, 2022
Tian Y, Viles JH.
europepmc   +2 more sources

Low-energy electron-driven functionalization of benzene–water ices to phenol

Astronomy & Astrophysics
Low-energy electrons abundantly generated by galactic cosmic radiation are expected to play a central role in the radiation chemistry of interstellar and cometary ices, yet their capacity to drive specific bond-forming reactions in simple aromatic ...
Abdoul-Carime H., Ogden E., Biennier L., Carles S., Rabilloud F.   +4 more
doaj   +1 more source

Cellular and Molecular Processes in Wound Healing. [PDF]

Biomedicines, 2023
Fernández-Guarino M, Hernández-Bule ML, Bacci S.   +2 more
europepmc   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

On the Origin of Sodium Atoms in the Comae and Trails of Comets

Universe
Background: The observed abundance ratios of alkali species in ground-based spectra of comets deviate from solar composition, suggesting alkali ejection from phenoxides reacting with carbon dioxide at the nucleus surface (alkali-phenoxide carbonylation).
Marco Fulle, Paolo Molaro, Ilya Ilyin
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Multi‐Occupancy in CO2 Clathrate Hydrates: A Quantum Chemistry Study From Finite‐Size Cages to Crystals

Small Structures
This study presents a comprehensive quantum chemistry investigation of multiple CO2 encapsulation in clathrate hydrates, offering new insights into their potential for high‐capacity gas storage. Dispersion‐corrected density functional theory calculations
Miguel Morales‐Quijano, Adriana Cabrera‐Ramírez, Rita Prosmiti   +2 more
doaj   +1 more source

Rotational excitation of CO molecules colliding at low energy with a cold graphite surface

Astronomy & Astrophysics
Context. The CO molecule is of interest in various environments because, being IR active, it is often used as a tracer of inactive IR molecules. This is particularly important in the interstellar medium, where CO is the most abundant molecule after H2 ...
Rutigliano Maria, Pirani Fernando
doaj   +1 more source