Results 41 to 50 of about 93,185 (169)

Patient‐Derived Fibroblasts as a Clinically Relevant Model of Kearns–Sayre Syndrome

open access: yesAnnals of Neurology, EarlyView.
Objective Kearns–Sayre syndrome (KSS) is characterized by single large‐scale mitochondrial DNA deletions and by severe early‐onset clinical manifestations with neurological involvement. Reliable disease models, as well as validated biomarkers or effective treatments, are lacking.
Laura Valls‐Roca   +24 more
wiley   +1 more source

Observations of supernova remnants with the Sardinia Radio Telescope [PDF]

open access: yes, 2016
In the frame of the Astronomical Validation activities for the 64m Sardinia Radio Telescope, we performed 5-22 GHz imaging observations of the complex-morphology supernova remnants (SNRs) W44 and IC443.
PILIA, Maura   +13 more
core  

Using Polarised HI Absorption to Estimate Distances to Supernova Remnants

open access: yes, 2021
Supernova remnants are the aftermath of the explosions of stars. In the study of Galactic supernova remnants, distance measurements are a vital supplement to astronomical observations.
Booth, Rebecca
core   +1 more source

Gold‐Catalyzed Cyclization of Indole‐Tethered Alkynes Enabling Synthesis of Exocyclic Alkenyl Tetrahydrocarbazoles

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
An efficient gold‐catalyzed intramolecular cyclization of indole‐tethered alkynes using AgNTf2 as an additive has been developed, which provides bioactive exocyclic alkenyl tetrahydrocarbazoles with up to 85% yield. Control experiments and DFT studies indicate that the reaction proceeds via a 6‐exo‐dig cyclization pathway, with gold acetylide complexes
Haibo Mei   +4 more
wiley   +1 more source

Air Pollution Quinones Impair Intestinal Barrier Integrity and Endoplasmic Reticulum in Differentiated Caco‐2 Cells

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Particulate matter (PM) is a major global health threat, linked to millions of deaths annually. Beyond inhalation, PM components reach the gastrointestinal tract through the mucociliary escalator or contaminated food and water. Among PM's organic fraction, redox‐active quinones such as 1,2‐naphthoquinone (NQ) and 9,10‐phenanthrenequinone (PQ ...
Franco Cervellati   +6 more
wiley   +1 more source

Distribution of Supernova Remnants in the Galaxy [PDF]

open access: yes, 2020
The number of Supernova Remnants (SNRs) observable in the Galaxy is consistent with the number expected to be formed in a Universe that is 7,000 years old.
Davies, Keith
core  

Proprioception drives tension wood formation for autotropic straightening and postural control in trees

open access: yesNew Phytologist, EarlyView.
Proprioception controls trunk straightness in trees through opposite tension wood formation. A spherical growth chamber (a), combined with a two‐dimensional rotating clinostat (b2), suppresses gravi‐ and phototropic sensing. The tree is first tilted horizontally (b1), triggering upward gravitropic bending, actuated by tension wood formation on the ...
Alexandre Caulus   +7 more
wiley   +1 more source

New Radio Observations of the Supernova Remnant CTA 1

open access: yesThe Astrophysical Journal
We present new radio images of the supernova remnant (SNR) CTA 1 at 1420 and 408 MHz, and in the 21 cm line of H i observed with the Dominion Radio Astrophysical Observatory Synthesis Telescope and at 1420 MHz observed with the Effelsberg 100 m telescope.
Tam Do   +5 more
doaj   +1 more source

Doppler Broadening and Line-of-sight Effects in Core-collapse Supernovae and Young Remnants

open access: yesThe Astrophysical Journal, 2023
The dynamics and spectral characteristics of supernova ejecta reveal details of the supernova energetics, explosive nucleosynthesis, and evolution of the progenitor.
Taylor Jacovich   +6 more
doaj   +1 more source

Rethinking microtidal systems: Tidal signatures in the fluvial deposits of the Po River, Italy

open access: yesSedimentology, EarlyView.
ABSTRACT In microtidally influenced rivers, tides are generally assumed to leave virtually no signatures in the sedimentary record. However, this hypothesis has been surprisingly poorly tested using modern river analogues, which provide an opportunity to assess whether sedimentary signatures of microtidal regimes can develop in rivers that lack ...
Anna E. van Yperen   +6 more
wiley   +1 more source

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