Results 31 to 40 of about 1,920,958 (265)

Formation of methane and cyclohexane through the hydrogenation of toluene

Astronomy & Astrophysics
Aims. Methylated polycyclic aromatic hydrocarbons (PAHs) have been hypothesised to be present in the interstellar medium (ISM) through their 3.4 and 6.9 μm absorption bands.
Hopkinson A. T., Doktor F. G., Pitfield J., Moll M., Thrower J. D., Hornekær L.   +5 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

Shock-type inference of L1157 B2 using methanol desorption

Astronomy & Astrophysics
Context. Shock types of low-velocity molecular outflows are not always well constrained. Astrochemical comparisons are often made between low-velocity and high-velocity outflows, but without considering the question of the shock type. Aims.
Baijot Cedric, Groyne Maria, De Becker Michaël   +2 more
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

The gas-phase nitridation processes of large, astronomically relevant polycyclic aromatic hydrocarbons cations in the interstellar medium

Astronomy & Astrophysics
Atomic nitrogen reacts efficiently with polycyclic aromatic hydrocarbons species, and potentially generates a diverse array of complex organic molecules in the interstellar medium.
Zhang Congcong, Ge Yanan, Wang Ziyi, Wang Wei, Hua Lijun, Zhao Nian, Yang Xuejuan, Zhen Junfeng   +7 more
doaj   +1 more source

Atomic and Molecular Processes at Solid Surfaces [PDF]

Journal of Colloid and Interface Science, 1977
Abstract Development of new techniques over the past 15 years permits the investigation of the structure, the composition, and reactivity of solid surfaces on the atomic scale. Our present knowledge of the structure of clean surfaces and of adsorbed monolayers as studied by low-energy electron diffraction is reviewed. Surface crystallography provides
openaire   +2 more sources

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Formation pathways and detectability of interstellar C2HNO-bearing molecules

Astronomy & Astrophysics
Aims. We explored N-bearing molecules of the general formula C2HNO. We provide their spectroscopic constants, structural properties relevant for detection, and reaction pathways to constrain their formation in the interstellar medium. Methods.
Godwin Oko Emmanuel, Inostroza-Pino Natalia, MacLeod-Carey Desmond, Mardones Diego   +3 more
doaj   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Helium-induced rotational (de-)excitation of interstellar rhomboidal silicon tricarbide (c-SiC3)

Astronomy & Astrophysics
Silicon carbide molecules are key tracers of dust formation and molecular evolution in carbon-rich circumstellar environments, yet their collisional excitation remains largely unexplored.
Mehnen Bilel
doaj   +1 more source