Results 41 to 50 of about 74,403 (250)

High-Resolution Spectra Observed for SPY. II. DB and DBA Stars

, 2007
accepted for publication in Astronomy and ...
Voss, B., Koester, D., Napiwotzki, R., Christlieb, N., Reimers, D.   +4 more
openaire   +2 more sources

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

Nonlinear asteroseismology: insight from amplitude and frequency modulations of oscillation modes in compact pulsators from Kepler photometry

EPJ Web of Conferences, 2017
Nonlinear mode interactions are difficult to observe from ground-based telescopes as the typical periods of the modulations induced by those nonlinear phenomena are on timescales of weeks, months, even years. The launch of space telescopes, e.g., Kepler,
Zong Weikai, Charpinet Stéphane, Vauclair Gérard, Giammichele Noemi, Van Grootel Valérie   +4 more
doaj   +1 more source

Discovery and asteroseismological analysis of a new pulsating DB white dwarf star, PG 2246+121 [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
We report 36.6 h of time-resolved CCD photometry of the DB white dwarf star PG 2246+121 and the discovery that it is a new pulsating variable. Analysis of our compact single-site data set allowed the detection of three mode multiplets, two triplets at 256 and 329 s, respectively, and one doublet at 286 s. The frequency splitting within those structures
openaire   +2 more sources

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

Molecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley, Michael W. Rohr, Joseph A. Goode, Sai Preethi Nakkina, Jignesh G. Parikh, Deborah A. Altomare   +5 more
wiley   +1 more source

Know Your Neighborhood: A Detailed Model Atmosphere Analysis of Nearby White Dwarfs

, 2012
We present improved atmospheric parameters of nearby white dwarfs lying within 20 pc of the Sun. The aim of the current study is to obtain the best statistical model of the least-biased sample of the white dwarf population.
Bergeron, Bergeron, Bergeron, Bergeron, Bessell, Bohlin, Cohen, Dufour, Dufour, Dufour, Falcon, Farihi, Farihi, Gatewood, Gianninas, Gianninas, Gianninas, Harris, Holberg, Holberg, Holberg, Holberg, Kawka, Kawka, Kilic, Kilic, Kilic, Kowalski, Leggett, Liebert, Liebert, Limoges, Lépine, Lépine, Lépine, Malo, McCook, Monet, N. Giammichele, P. Bergeron, P. Dufour, Perryman, Press, Provencal, Putney, Reimers, Salim, Schmidt, Scholz, Sion, Subasavage, Subasavage, Subasavage, Tremblay, Tremblay, Tremblay, Tremblay, van Altena, Vennes, Vennes, Vornanen, Zuckerman, Zuckerman   +62 more
core   +1 more source

A Detailed Model Atmosphere Analysis of Hot White Dwarfs in DESI DR1

The Astrophysical Journal
We present a detailed model atmosphere analysis of hot white dwarfs in the Dark Energy Spectroscopic Instrument (DESI) Data Release 1. Our sample includes 19,321 unique targets with G _BP  −  G _RP ≤ 0.
Mukremin Kilic, Pierre Bergeron, Adam Moss, Simon Blouin, Matthew J. Green, Gracyn Jewett, Manuel Barrientos, Alexander L. Albright, Warren R. Brown   +8 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Measuring the mass accretion rates of Herbig Ae/Be stars with X-shooter [PDF]

, 2012
We present the results of our observations of eight magnetic Herbig Ae/Be stars obtained with the X-shooter spectrograph mounted on UT2 at the VLT.
Ardila, Bibo, Bohm, Calvet, Calvet, Catala, Coulson, D'Alessio, D'Alessio, Dahm, Donehew, Fang, Finkenzeller, Garcia, Garcia Lopez, Gatti, Grady, Grady, Grady, Grinin, Gullbring, Henning, Herbig, Herczeg, Hillenbrand, Hubrig, Hubrig, Hubrig, Hubrig, Mendigutia, Mendigutia, Mohanty, Montesinos, Mottram, Muzerolle, Muzerolle, Müller, Natta, Natta, Nguyen, Oudmaijer, Palla, Pogodin, Pogodin, Rigliaco, Tout, Tout, Wade, White   +48 more
core   +2 more sources

The 100 pc White Dwarf Sample in the SDSS Footprint. II. A New Look at the Spectral Evolution of White Dwarfs

The Astrophysical Journal
We increase the spectroscopic completeness of the 100 pc white dwarf sample in the Sloan Digital Sky Survey footprint with 840 additional spectra. Our spectroscopy is 86% complete for white dwarfs hotter than T _eff  = 5000 K, where H α remains visible ...
Mukremin Kilic, Pierre Bergeron, Simon Blouin, Adam Moss, Warren R. Brown, Antoine Bédard, Gracyn Jewett, Marcel A. Agüeros   +7 more
doaj   +1 more source