Results 51 to 60 of about 70,641 (273)

Counts and Sizes of Galaxies in the Hubble Deep Field - South: Implications for the Next Generation Space Telescope

open access: yes, 2000
Science objectives for the Next Generation Space Telescope (NGST) include a large component of galaxy surveys, both imaging and spectroscopy. The Hubble Deep Field datasets include the deepest observations ever made in the ultraviolet, optical and near ...
Abraham R. G.   +5 more
core   +1 more source

NNMT Orchestrates Metabolic‐Epigenetic Reprogramming to Drive Macrophage‐Myofibroblast Transition in Hypertrophic Scarring

open access: yesAdvanced Science, EarlyView.
In macrophage‐myofibroblast transition, upregulated NNMT depletes S‐Adenosylmethionine‌ (SAM) and nicotinamide adenine dinucleotide(NAD+), thereby triggering epigenetic reprogramming via Histone H3 Lysine 27 acetylation (H3K27ac) accumulation at the promoter region of master transcription factor Prrx1.
Xiwen Dong   +11 more
wiley   +1 more source

Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806

open access: yesThe Astrophysical Journal
It is commonly accepted that active galactic nuclei (AGNs) have a strong impact upon the evolution of their host galaxies, but the processes by which they do so are not fully understood.
Sophie L. Robbins   +2 more
doaj   +1 more source

Pinning down the ram-pressure-induced halt of star formation in the Virgo cluster spiral galaxy NGC 4388. A joint inversion of spectroscopic and photometric data

open access: yes, 2010
In a galaxy cluster, the evolution of spiral galaxies depends on their cluster environment. Ram pressure due to the rapid motion of a spiral galaxy within the hot intracluster medium removes the galaxy's interstellar medium from the outer disk.
A. Boselli   +52 more
core   +3 more sources

From Sample to Mixed Reality: A Translational 3D MALDI Imaging Platform for Advanced 3D Spatial Omics Analysis of 3D Cell Culture Disease Models

open access: yesAdvanced Science, EarlyView.
A comprehensive technology platform enables high‐fidelity, volumetric MALDI imaging of 3D cell cultures by integrating custom embedding molds, a semi‐automated computational framework for 3D reconstruction, voxel‐instead of pixel‐based biomarker discovery, and immersive mixed reality data exploration.
Stefania Alexandra Iakab   +16 more
wiley   +1 more source

Spectroscopy of extremely distant radio galaxies [PDF]

open access: yesThe Astrophysical Journal, 1984
In this Letter we report the firm identification of two faint radio galaxies, 3C 13 and 3C 256, and a spectroscopic survey of 13 faint 3CR galaxies. The emission-line redshifts now extend up to z = 1.82 (3C 256), and we here present a list and a preliminary spectrum summary of the character of 11 new radio galaxies with z > 0. 77.
Spinrad, Hyron, Djorgovski, S.
openaire   +2 more sources

The Bullseye: HST, Keck/KCWI, and Dragonfly Characterization of a Giant Nine-ringed Galaxy

open access: yesThe Astrophysical Journal Letters
We report the discovery and multiwavelength follow-up of LEDA 1313424 (“Bullseye”), a collisional ring galaxy (CRG) with nine readily identified rings—the most so far reported for a CRG.
Imad Pasha   +7 more
doaj   +1 more source

The Gut Commensal Butyricimonas Virosa Modulates Gut Microbiota‐Dependent Thiamine Metabolism and Attenuates Mouse Steatotic Liver Disease

open access: yesAdvanced Science, EarlyView.
This study reveals that dietary stachyose enriches Butyricimonas virosa, effectively attenuating metabolic dysfunction‐associated steatotic liver disease (MASLD). Mechanistically, B. virosa enhances gut thiamine monophosphate synthesis, which elevates hepatic thiamine pyrophosphate levels.
Ningning He   +17 more
wiley   +1 more source

Near‐Infrared Spectroscopy of Arp Interacting Galaxies

open access: yesThe Astrophysical Journal, 1998
Peer ...
Vanzi, Leonardo   +2 more
openaire   +2 more sources

Shining a Light on the Connections between Galactic Outflows Seen in Absorption and Emission Lines

open access: yesThe Astrophysical Journal
Galactic outflows provide important feedback effects to regulate the evolution of host galaxies. Two primary diagnostics of outflows are broad and/or blueshifted emission and absorption lines.
Xinfeng Xu   +16 more
doaj   +1 more source

Home - About - Disclaimer - Privacy