Results 71 to 80 of about 791,277 (228)

Non-Zeeman Circular Polarization of Molecular Rotational Spectral Lines [PDF]

, 2012
We present measurements of circular polarization from rotational spectral lines of molecular species in Orion KL, most notably 12CO (J=2 - 1), obtained at the Caltech Submillimeter Observatory with the Four-Stokes-Parameter Spectra Line Polarimeter.
Hezareh, Talayeh, Houde, Martin, Jones, Scott, Rajabi, Fereshte   +3 more
core   +2 more sources

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Study on the Wavelength-Dependent Temporal Waveform Characteristics of a High-Pressure CO₂ Master Oscillator Power Amplifier System

Photonics
This study systematically investigates the temporal characteristics of a high-pressure CO2 master oscillator power amplifier (MOPA) system under tunable spectral lines.
Zefan Huang, Ming Wen, Ziren Zhu, Jinzhou Bai, Jingjin Fu, Heng Wang, Tianjian Wan, Rongqing Tan, Yijun Zheng   +8 more
doaj   +1 more source

A Detailed Far-Ultraviolet Spectral Atlas of O-Type Stars

, 2012
In this paper we present a spectral atlas covering the wavelength interval 930--1188A for O2--O9.5 stars using Far Ultraviolet Spectroscopic Explorer archival data.
Bashkin, Brandt, Fullerton, Gray, Howarth, Hubeny, Kaiser, Kurucz, Kurucz, Lanz, Massey, Maíz-Apellániz, Myron A. Smith, Pellerin, Penny, Piskunov, Robert, Smith, Smith Neubig, van Hoof, Walborn, Walborn, Walborn, Young, Zsargó   +24 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

The mechanism of carbon monoxide fluorescence inside a femtosecond laser-induced plasma

Open Physics
The fluorescence spectrum of CO molecules in intense femtosecond laser fields was studied experimentally. Distinct spectral lines from excited atoms and molecules were identified.
Zhang Junfeng, Shi Dandan, Wang Qinxin, Lv Hang   +3 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Small-scale magnetic field effects on individual spectral line radial velocities in the photosphere and chromosphere of the Sun

Astronomy & Astrophysics
Context. Advancements in extreme-precision radial velocity (RV) observations for detecting low-mass exoplanets show that different spectral lines show different behaviours in response to stellar activity. Though this can be dealt with experimentally, why
Dorval P., Piskunov N., de la Cruz Rodríguez J.   +2 more
doaj   +1 more source