Results 51 to 60 of about 17,877 (291)

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

Modelling Time-dependent Convective Penetration in 1D Stellar Evolution

The Astrophysical Journal
One-dimensional stellar evolution calculations produce uncertain predictions for quantities like the age, core mass, core compactness, and nucleosynthetic yields; a key source of uncertainty is the modeling of interfaces between regions that are ...
Cole Johnston, Mathias Michielsen, Evan H. Anders, Mathieu Renzo, Matteo Cantiello, P. Marchant, Jared A. Goldberg, Richard H. D. Townsend, Gautham Sabhahit, Adam S. Jermyn   +9 more
doaj   +1 more source

Neutron star cooling: Theoretical aspects and observational constraints

, 2003
The cooling theory of isolated neutron stars is reviewed. The main cooling regulators are discussed, first of all, operation of direct Urca process (or similar processes in exotic phases of dense matter) and superfluidity in stellar interiors.
A.D Kaminker, A.Y Potekhin, Arendt, Brown, Campana, Chen, Colpi, D.G Yakovlev, Flowers, Gnedin, Gudmundsson, Haensel, Halpern, K.P Levenfish, Kaminker, Kaminker, Lattimer, Lattimer, Lattimer, Lombardo, Lyne, O.Y Gnedin, Page, Page, Page, Pavlov, Pavlov, Pavlov, Pethick, Pons, Possenti, Potekhin, Potekhin, Prakash, Rutledge, Rutledge, Rutledge, Slane, Tennant, Thorne, Tsuruta, Walter, Wijnands, Winkler, Yakovlev, Yakovlev, Yakovlev, Yakovlev, Yakovlev, Yakovlev, Zavlin, Zavlin   +51 more
core   +2 more sources

Time-dependent Turbulence in Stars [PDF]

, 2010
Three-dimensional (3D) hydrodynamic simulations of shell oxygen burning (Meakin and Arnett 2007) exhibit bursty, recurrent fluctuations in turbulent kinetic energy.
Böhm-Vitense, Casey Meakin, Chandrasekhar, Cvitanović, Davidson, Gleick, Kjeldsen, Landau, Ledoux, Thompson, Unno, W. David Arnett   +11 more
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin

Molecular Oncology, EarlyView.
The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla, Jan Kosla, Magdalena Prechova, Lukas Frick, Patricia Bortel, Yasmin Borutzki, Andrea Bileck, Christopher Gerner, Samuel M. Meier‐Menches, Selma Osmanagic‐Myers, Martin Gregor   +10 more
wiley   +1 more source

An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models

The Astrophysical Journal
We present a set of 1194 Type-1 Rosseland-mean opacity tables for four different metallicity mixtures. These new Los Alamos OPLIB atomic radiative opacity tables are an order of magnitude larger in number than any previous opacity table release, and span
Ebraheem Farag, Christopher J. Fontes, F. X. Timmes, Earl P. Bellinger, Joyce A. Guzik, Evan B. Bauer, Suzannah R. Wood, Katie Mussack, Peter Hakel, James Colgan, David P. Kilcrease, Manolo E. Sherrill, Tryston C. Raecke, Morgan T. Chidester   +13 more
doaj   +1 more source

Stellar Evolution and Convection in 3D Hydrodynamic Simulations of a Complete Burning Phase

Galaxies
Our understanding of stellar evolution and nucleosynthesis is limited by the uncertainties coming from the complex multi-dimensional processes in stellar interiors, such as convection and nuclear burning. Three-dimensional stellar models can improve this
Federico Rizzuti, Raphael Hirschi, Vishnu Varma, William David Arnett, Cyril Georgy, Casey Meakin, Miroslav Mocák, Alexander StJ. Murphy, Thomas Rauscher   +8 more
doaj   +1 more source

The Missing Link: Testing Galactic Chemical Evolution Models with the First Multi-isotopic Abundances in Solar Twin Stars

The Astrophysical Journal, 2023
We present the first isotopic abundances of both ^13 CO and C ^18 O in solar twin stars and test the results against several galactic chemical evolution (GCE) models with different nucleosynthesis prescriptions.
David R. Coria, Ian J. M. Crossfield, Joshua Lothringer, Becky Flores, Nikos Prantzos, Richard Freedman   +5 more
doaj   +1 more source

Turbulent Convection in Stellar Interiors. II. The Velocity Field

, 2008
We analyze stellar convection with the aid of 3D hydrodynamic simulations, introducing the turbulent cascade into our theoretical analysis. We devise closures of the Reynolds-decomposed mean field equations by simple physical modeling of the simulations (
Arnett, Asida, Balbus, Batchelor, Bethe, Biermann, Boris, Brandenburg, Browning, Browning, Böhm-Vitense, Böhm-Vitense, Campbell, Casey Meakin, Chandrasekhar, Chandrasekhar, Charbonnel, Clayton, Cvitanović, David Arnett, Dutton, Frisch, Gill, Gleick, Hansen, Heger, Howe, Kippenhahn, Kolmogorov, Kritsuk, Landau, Ludwig, Meakin, Meakin, Meakin, Meynet, Nordlund, Oran, Patrick A. Young, Porter, Porter, Shannon, Stone, Sytine, Tassoul, Tennekes, Thompson, Timmes, Trampedach, Tritton, Turner, Vitense, Woodward, Woodward, Young, Zel'dovich   +55 more
core   +1 more source