Results 121 to 130 of about 8,519,684 (295)
Speckle interferometry of Hipparcos link stars – III
, 1991 We present here a third list of stars which have been tested by speckle interferometry for use in the Hubble Space Telescope link between the Hipparcos astrometric reference frame and the extragalactic VLBI reference frame.
Jauncey, David L. +7 more
core +1 more source
Liver organoids: modelling complexity in homeostasis and disease
FEBS Letters, EarlyView.Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley +1 more source
Low-mass Population III Star Formation due to the HD Cooling Induced by Weak Lyman–Werner Radiation
The Astrophysical JournalLyman–Werner (LW) radiation photodissociating molecular hydrogen (H _2 ) influences the thermal and dynamical evolution of the Population III (Pop III) star-forming gas cloud.
Sho Nishijima +2 more
doaj +1 more source
The chemical fingerprint of the Gaia BH3 system
Astronomy & AstrophysicsContext. The Gaia BH3 system hosts the most massive known stellar-origin black hole and a low-mass metal-poor companion whose chemical composition may help us constrain early explosive nucleosynthesis processes. Aims.
Vanden Broeck Grégory +7 more
doaj +1 more source
Epigenetic reprogramming of lineage switching in cancer
FEBS Letters, EarlyView.Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı +4 more
wiley +1 more source
REVISITING THE FIRST GALAXIES: THE EPOCH OF POPULATION III STARS
, 2013 We investigate the transition from primordial Population III (Pop III) star formation to normal Pop II star formation in the first galaxies using new cosmological hydrodynamic simulations.
Muratov, Alexander L. +3 more
core +1 more source
The microbiome in human skin aging
FEBS Letters, EarlyView.Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana +3 more
wiley +1 more source
FEBS Letters, EarlyView.Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante +10 more
wiley +1 more source
The high-redshift signatures of Population III stars
The first stars, refereed to as Population III (Pop III), played a very important role in the evolution of the early universe. However, we have yet to observe them.
Wasserman, Joel
core +2 more sources
RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey [PDF]
, 2015 This publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). AAF is grateful to DGAPA-UNAM for grant number IN104612.We used the light curve archive of the Qatar Exoplanet Survey to ...
Bramich, Daniel Martyn +7 more
core +1 more source