Results 71 to 80 of about 4,372,191 (364)

FoxO1 signaling in B cell malignancies and its therapeutic targeting

FEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac, Petra Pavelkova, Laura Ondrisova, Marek Mraz   +3 more
wiley   +1 more source

On the Galactic chemical evolution of sulphur. Sulphur abundances from the [S i] 1082 nm line in giants [PDF]

, 2013
Context. The Galactic chemical evolution of sulphur is still under debate. At low metallicities some studies find no correlation between [S/Fe] and [Fe/H], others find [S/Fe] increasing towards lower metallicities, and still others find a combination of ...
Dupree, A. K., Matrozis, E., Ryde, N.
core   +1 more source

Screening Earth Analog Exoplanets on the Basis of a Predicted Nitrogen over Phosphorus Ratio

The Astrophysical Journal, 2023
Since the first discovery in 1995, data for over 5300 exoplanets have been documented in the NASA archive, revealing a vast diversity. Identifying life-enabling analogs of the Earth among this rapidly expanding catalog is of major interest. The stability
Hervé Toulhoat
doaj   +1 more source

APOGEE chemical abundances of globular cluster giants in the inner Galaxy [PDF]

, 2016
We report chemical abundances obtained by Sloan Digital Sky Survey (SDSS)-III/Apache Point Observatory Galactic Evolution Experiment for giant stars in five globular clusters located within 2.2 kpc of the Galactic Centre.
R. Schiavon, Jennifer A. Johnson, P. Frinchaboy, G. Zasowski, S. Mészáros, D. A. García-Hernández, R. Cohen, B. Tang, S. Villanova, D. Geisler, T. Beers, J. Fernández-Trincado, A. G. Pérez, S. Lucatello, S. Majewski, S. Martell, R. O’Connell, C. Prieto, D. Bizyaev, R. Carrera, R. Lane, E. Malanushenko, V. Malanushenko, R. Muñoz, C. Nitschelm, D. Oravetz, K. Pan, A. Roman-Lopes, M. Schultheis, A. Simmons   +29 more
semanticscholar   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Elemental Abundances in the Diffuse Interstellar Medium from Joint Far-ultraviolet and X-Ray Spectroscopy: Iron, Oxygen, Carbon, and Sulfur

The Astronomical Journal
In this study, we investigate interstellar absorption lines along the line of sight toward the galactic low-mass X-ray binary Cygnus X-2. We combine absorption line data obtained from high-resolution X-ray spectra collected with the Chandra and XMM ...
I. Psaradaki, L. Corrales, J. Werk, A. G. Jensen, E. Costantini, M. Mehdipour, R. Cilley, N. Schulz, J. Kaastra, J. A. García, L. Valencic, T. Kallman, F. Paerels   +12 more
doaj   +1 more source

CHEMICAL ABUNDANCES IN BINARIES WITH TWIN COMPONENTS

Odessa Astronomical Publications, 2017
Procedure and some preliminary results of abundances determination in binaries with twin components from solar neighborhood are discussed. Numerical analysis were carried out by fits of synthetical spectra and COG to high resolution (R=50000) observed ...
Yu. Lyubchik, E. Martin, G. Basri, Ya. Pavlenko   +3 more
doaj   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

FEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke, Izadora Volpato Rossi, Marcel I. Ramirez   +2 more
wiley   +1 more source

Chemical Abundances in Galactic Bulge Pn [PDF]

Symposium - International Astronomical Union, 1993
We present abundance determinations, in particular of carbon, and C/O ratios, for 11 Galactic bulge planetary nebulae (PN) based on our low resolution UV data from IUE observations and optical spectrophotometry from the Anglo-Australian Telescope. We compare the observed abundances with those predicted by dredge-up theory for the high metallicity ...
R. E. S. Clegg, Nicholas A. Walton, M. J. Barlow   +2 more
openaire   +2 more sources

Chemical Abundances of M-Dwarfs from the Apogee Survey. I. The Exoplanet Hosting Stars Kepler-138 and Kepler-186 [PDF]

, 2016
We report the first detailed chemical abundance analysis of the exoplanet-hosting M-dwarf stars Kepler-138 and Kepler-186 from the analysis of high-resolution (R ∼ 22,500) H-band spectra from the SDSS-IV–APOGEE survey.
D. Souto, Katia Cunha, D. A. García-Hernández, O. Zamora, C. Prieto, Verne V. Smith, S. Mahadevan, Cullen H. Blake, J. Johnson, H. Jőnsson, M. Pinsonneault, Jon A. Holtzman, S. Majewski, M. Shetrone, J. Teske, D. Nidever, R. Schiavon, J. Sobeck, A. Pérez, Y. G. M. Chew, K. Stassun   +20 more
semanticscholar   +1 more source