Results 71 to 80 of about 1,938,921 (284)

Effects of Dietary Mannan Oligosaccharides on Growth, Disease Resistance, and Gut Microbiota in Zebrafish

Animal Research and One Health, EarlyView.
Supplementation with mannan oligosaccharides (MOS) enhances growth, disease resistance, antioxidant capacity, and gut microbiota diversity while suppressing inflammation, apoptosis, and strengthening intestinal barrier integrity in zebrafish challenged with LPS or DSS.
Zhiyuan Lu, Longjiang Tang, Lei Deng, Ziheng Ren, Zhiyuan Gong   +4 more
wiley   +1 more source

Tidal Grinding of Dwarf Galaxies in Cluster Environments

The Astrophysical Journal Letters
Dwarf elliptical galaxies (dEs) dominate galaxy clusters and provide key constraints on environmentally driven galaxy evolution. Here we examine whether the projected shapes of dEs retain information about their accretion and transformation histories ...
Sanjaya Paudel, Suk-Jin Yoon, Tek Prasad Adhikari, Eun-Taek Gim, Myung-Hun Kim, Inhyuk Park, Nau Raj Pokhrel   +6 more
doaj   +1 more source

Deep Synoptic Array Science: A Massive Elliptical Host Among Two Galaxy-cluster Fast Radio Bursts

The Astrophysical Journal, 2023
The stellar population environments that are associated with fast radio burst (FRB) sources provide important insights for developing their progenitor theories.
Kritti Sharma, Jean Somalwar, Casey Law, Vikram Ravi, Morgan Catha, Ge Chen, Liam Connor, Jakob T. Faber, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, James W. Lamb, Paul Rasmussen, Myles B. Sherman, Jun Shi, Dana Simard, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli, The Deep Synoptic Array team   +23 more
doaj   +1 more source

Influence of Dynamical Friction on the Unstable Manifolds of Lagrange Points in Barred Galaxies

Astronomische Nachrichten, EarlyView.
ABSTRACT Some time ago the idea has been proposed that rings and spirals in barred galaxies are shaped by the unstable manifolds of the Lagrange points sitting near the ends of the bar. The topic of the present article is an investigation of whether the numerical support for this suggestion can be improved by the inclusion of dynamical friction into ...
Christof Jung
wiley   +1 more source

Direct SMBH Formation Driven by Runaway Stellar Collisions in Globally Unstable Stellar Systems

Astronomische Nachrichten, EarlyView.
ABSTRACT The fueling problem addresses the ultimate fate of the reservoirs of gas and stars driven into the deepest gravitational potential wells of galaxies, thus it may contain the Universe's densest concentrations of gas and stars. This raises a key question: does the infalling material collapse directly into a supermassive black hole, or can it ...
Marcelo C. Vergara, Andrés Escala
wiley   +1 more source

Clustering and redshift-space distortions in QSO and galaxy surveys [PDF]

, 2006
In this thesis, we exploit the potential of existing QSO and galaxy surveys for investigating the nature of the large scale structure in the Universe. A detailed analysis of clustering and redshift- space distortions allows us to constrain cosmological ...
Cruz da Angela, José Antonio, José Antonio Cruz da Angela   +1 more
core  

Do galaxy mergers prefer under-dense environments? [PDF]

Context. Galaxy mergers play a crucial role in galaxy evolution. However, the correlation between mergers and the local environment of galaxies is not fully understood.Aims.
Taylor, E. N., Taylor, E.N., Pearson, W.J., E. N. Taylor, U. Sureshkumar, Farrow, D. J., Durkalec, A., Farrow, D.J., A. Narayanan, J. Loveday, Suelves, L.E., L. E. Suelves, A. Durkalec, D. J. Farrow, Pearson, W. J., Pollo, A., Loveday, J., W. J. Pearson, Narayanan, A., Suelves, L. E., Sureshkumar, U., A. Pollo   +21 more
core   +2 more sources

No Evidence of Asymmetrically Enhanced Star Formation in Infalling Galaxies in UNIONS

The Astrophysical Journal
Ram pressure stripping is a well-known environmental quenching mechanism that removes gas from galaxies infalling into groups and clusters. In some extreme examples of ram pressure stripping, galaxies with extended gas tails show evidence of enhanced ...
Lauren M. Foster, Laura C. Parker, Stephen Gwyn, Ian D. Roberts, James E. Taylor, Michael J. Hudson, Alan W. McConnachie, Thomas de Boer   +7 more
doaj   +1 more source

Properties of barred galaxies with the environment

Astronomy & Astrophysics
Context. Bars are elongated structures developed by a large fraction of disk galaxies in their central few kiloparsecs. However, the bar formation process is still not fully understood, particularly the role played by the galaxy environment in the ...
Cuomo Virginia, Aguerri J. Alfonso L., Morelli Lorenzo, Choque-Challapa Nelvy, Zarattini Stefano   +4 more
doaj   +1 more source

Form flows function: Learner‐centered game Re‐design in a STEM classroom

British Educational Research Journal, EarlyView.
Abstract Re‐designing games facilitates interest‐driven learning and immerses learners in systems thinking. However, there are limited studies exploring how the form and function of tabletop games influence learners' design decisions and learning experiences. To address this gap, we conducted a mixed‐methods study in a STEM classroom in western Canada.
Farzan Baradaran Rahimi, Beaumie Kim, Shima Dadkhahfard   +2 more
wiley   +1 more source