Results 111 to 120 of about 4,822,469 (343)

Evaporation of Close-in Sub-Neptunes by Cooling White Dwarfs

The Astrophysical Journal Letters
Motivated by the recent surge in interest concerning white dwarf (WD) planets, this work presents the first numerical exploration of WD-driven atmospheric escape, whereby the high-energy radiation from a hot/young WD can trigger the outflow of the ...
Elena Gallo, Andrea Caldiroli, Riccardo Spinelli, Federico Biassoni, Francesco Haardt, Mary Anne Limbach, Juliette Becker, Fred C. Adams   +7 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

A Comparison of Best Fits Obtained in White Dwarf Asteroseismology Using the WDEC and the LPCODE

The Astrophysical Journal
We perform the asteroseismic fitting of four DAVs using a grid of WDEC models with chemical profiles that closely mimic those of the LPCODE models and compare them with published asteroseismic fitting results using the LPCODE.
Agnès Bischoff-Kim
doaj   +1 more source

Comprendere e far comprendere

INFAD, 2015
In this paper the basic question is how who stars from the comprehension contributes to build the learning in a different way than who starts from an easy activity, have a light measurement of comprehension that you want to develop and live the same ...
Daniela De Leo
doaj   +1 more source

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

Constraints from Parallaxes and Average Period Spacings in the Asteroseismic Study of Eight Hydrogen-atmosphere Pulsating White Dwarfs

The Astrophysical Journal
With space missions such as Kepler, TESS, and Gaia, we have a wealth of data on pulsating white dwarfs that can be leveraged in white dwarf asteroseismology. We address the question of the proportion of white dwarfs with thin hydrogen layers versus those
Agnès Bischoff-Kim, Keaton J. Bell
doaj   +1 more source

Teatro, actores e público no Alto lmpério romano

Ágora, 2023
Nesta comunicação pretendemos rebater a afirmação constantemente repetida de que, após Terêncio, o teatro latino entrou em franca decadência e os recintos em que tinham lugar as representações dramáticas ficaram vazios e sem público ...
Maria Cristina de Castro-Maia de Sousa Pimentel
doaj  

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Attaining Spectral Energy Distributions with Subpercent Uncertainties: All-sky DA White Dwarf Spectrophotometric Standard Stars For Large Telescopes and Surveys

The Astronomical Journal
We present a synopsis of the project to establish 32 new faint (16.5 ≤ V ≤ 19.8) DA white dwarf (DAWD) spectrophotometric standards distributed over the whole sky.
Abhijit Saha, Edward W. Olszewski, Benjamin M. Boyd, Thomas Matheson, Tim Axelrod, Gautham Narayan, Annalisa Calamida, Jay B. Holberg, Ivan Hubeny, Ralph C. Bohlin, Susana Deustua, Armin Rest, Jenna Claver, Sean Points, Christopher W. Stubbs, Elena Sabbi, John W. Mackenty   +16 more
doaj   +1 more source