Results 91 to 100 of about 5,279,442 (297)

Cosmological Evolution of Gamma-Ray Bursts

open access: yesThe Astrophysical Journal
Gamma-ray bursts (GRBs) are classified as long (LGRBs) and short (SGRBs), with collapsars and compact-object mergers—neutron star–neutron star or or neutron star–black hole—as progenitors, respectively.
Sujay Champati   +2 more
doaj   +1 more source

Evaluating the effect of γ‐oryzanol on MASLD pathology using a medaka fish model

open access: yesFEBS Open Bio, EarlyView.
This study explores a liver disease called MASLD, which is increasing worldwide and can lead to serious damage. Researchers used medaka fish instead of rodents to test a food compound, γ‐oryzanol. Fish fed this compound had less liver fat and healthier gut bacteria.
Yukako Ito   +7 more
wiley   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

open access: yesFEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain   +11 more
wiley   +1 more source

Evolution of the Luminosity Function of Quasars

open access: yes, 1986
The luminosity function of quasars shows a strong dependence on redshift. We discuss alternate descriptions of this evolution. Density evolution is assumption-free if the density variation with red-shift is also allowed to be a function of absolute ...
Schmidt, Maarten, Maarten Schmidt
core   +1 more source

The stellar mass function of quiescent and star-forming galaxies and its dependence on morphology in COSMOS-Web

open access: yesAstronomy & Astrophysics
We study the stellar mass function (SMF) of quiescent and star-forming galaxies and its dependence on morphology in ten redshift bins at 0.2  10 at all redshifts, while disk systems (B/T  10 quiescent galaxies are lower than in the recent literature by 0.
Shuntov Marko   +35 more
doaj   +1 more source

The Truncated Lindley Distribution with Applications in Astrophysics

open access: yesGalaxies, 2019
This paper reviews the Lindley distribution and then introduces the scale and the double truncation. The unknown parameters of the truncated Lindley distribution are evaluated with the maximum likelihood estimators.
Lorenzo Zaninetti
doaj   +1 more source

Radio Luminosity Functions [PDF]

open access: yesSymposium - International Astronomical Union, 1996
Luminosity functions give the space densities of source populations as functions of spectral luminosity. They constrain source physics, clustering, cosmological evolution, and contributions to the radiation background. Extragalactic radio sources span eight decades of luminosity, so dividing them into luminosity ranges effectively separates them by ...
openaire   +1 more source

Identification and characterisation of calcitonin receptor isoforms expressed in glioblastoma derived glioma stem and U‐87 MG cells

open access: yesFEBS Open Bio, EarlyView.
Glioblastoma cells express calcitonin receptor variants (CT receptor isoforms) that may help them survive stress. Using qPCR, transcript‐specific long‐read nanopore sequencing, immunofluorescence co‐localisation and comparative sequence analysis, this study identifies a novel alternatively spliced CALCR transcript that encodes the CTb receptor isoform ...
Pragya Gupta   +7 more
wiley   +1 more source

A Bias-corrected Luminosity Function for Red Supergiant Supernova Progenitor Stars

open access: yesThe Astrophysical Journal Letters
The apparent tension between the luminosity functions of red supergiant (RSG) stars and of RSG progenitors of Type II supernovae (SNe) is often referred to as the RSG problem and it motivated some to suggest that many RSGs end their life without an SN ...
Nora L. Strotjohann   +2 more
doaj   +1 more source

Euclid Quick Data Release (Q1)

open access: yesAstronomy & Astrophysics
Recent observations with the James Webb Space Telescope (JWST) have revealed an interesting population of sources with a compact morphology and a characteristic v-shaped continuum, namely blue at a rest frame λ < 4000 Å and red at longer wavelengths. The
Bisigello L.   +349 more
doaj   +1 more source

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