Results 91 to 100 of about 11,439 (263)

Stellar-Mass Black Holes and Their Progenitors

, 2009
Astro 2010 Science White ...
Miller, J., Uttley, P, Nandra, K., Barret, D., Matt, G., Paerels, F., Mendez, M., Diaz-Trigo, M., Cappi, M., Kitamoto, S., Nowak, M., Wilms, J., Rothschild, R, Smith, R., Weisskopf, M., Terashima, Y., Ueda, Y   +16 more
openaire   +3 more sources

The Fluctuation Theory of the Stellar Mass Loss [PDF]

International Astronomical Union Colloquium, 1981
That we cannot give a justification – or sufficient reasons – for our guesses does not mean that we may not have guessed the truth.K.R. PopperIf studied in detail, the mass flows from the stars appear to be variable. “Mere inspection of solar wind data reveals large variations on a time scale of several days” (Hundhausen, 1972).
openaire   +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

Stellar Mass Segregation in Dark Matter Halos

The Astrophysical Journal
We study the effect of stellar mass segregation driven by collisional relaxation within the potential well of a smooth dark matter halo. This effect is of particular relevance for old stellar systems with short crossing times, where small collisional ...
Raphaël Errani, Jorge Peñarrubia, Matthew G. Walker   +2 more
doaj   +1 more source

Intermediate-mass black hole binary evolution in nuclear star clusters: The effect of the stellar-mass black hole population

Astronomy & Astrophysics
Aims. In this study, we investigate the dynamics of intermediate-mass black hole (IMBH) binaries within nuclear star clusters (NSCs) that contain a population of stellar-mass black holes (BHs).
Khan Fazeel Mahmood, Berczik Peter, Sobolenko Margaryta, Just Andreas, Spurzem Rainer, Holley-Bockelmann Kelly, Macciò Andrea V.   +6 more
doaj   +1 more source

A supra-massive population of stellar-mass black holes in the globular cluster Palomar 5. [PDF]

Nat Astron, 2021
Gieles M, Erkal D, Antonini F, Balbinot E, Peñarrubia J.   +4 more
europepmc   +1 more source

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

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Tracing Galaxy Evolution in the Nearby Universe: The Role of Dark Matter

The Astronomical Journal
Using a sample of ∼126,000 late-type galaxies (LTGs) from the Sloan Digital Sky Survey, we analyzed stellar mass as a function of the dynamical mass. Stellar masses are estimated using eight stellar population synthesis (SPS) models with constant initial
A. Nigoche-Netro, P. Lagos, R. J. Diaz, E. de la Fuente, M. P. Agüero, A. Ruelas-Mayorga, S. N. Kemp, R. A. Marquez-Lugo, R. Ibarra-Nuño   +8 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source