Results 101 to 110 of about 49,316 (344)

Interacting Galaxies with MOND

, 2007
We compare N-body simulations performed in MOND with analogs in Newtonian gravity with dark matter (DM). We have developed a code which solves the Poisson equation in both gravity models. It is a grid solver using adaptive mesh refinement techniques, allowing us to study isolated galaxies as well as interacting galaxies.
Tiret, O., Combes, F.
openaire   +2 more sources

The Curious Case of CysE: Diversity and Distribution of Serine Acetyltransferases in Bacteria

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Serine acetyltransferase (CysE) is a member of the left‐handed β‐helix family of acetyltransferases that catalyze the rate limiting step in de novo cysteine biosynthesis. There are two isoforms of CysE that differ in length, with the shorter isoform lacking approximately 76 amino acids at the N‐terminus of the protein from the serine ...
Keely E. A. Oldham, Adele K. Williamson, Emily K. Grout, Joanna L. Hicks   +3 more
wiley   +1 more source

Modified theory of gravity and clustering of multi-component system of galaxies

European Physical Journal C: Particles and Fields, 2019
In this paper, we analyze the clustering of galaxies using a modified theory of gravity, in which the field content of general relativity has been be increased.
Mir Hameeda, Behnam Pourhassan, Mir Faizal, C. P. Masroor, Rizwan Ul Haq Ansari, P. K. Suresh   +5 more
doaj   +1 more source

Metal Abundances of KISS Galaxies III. Nebular Abundances for Fourteen Galaxies and the Luminosity-Metallicity Relationship for HII Galaxies

, 2004
We report results from the third in a series of nebular abundance studies of emission-line galaxies from the KPNO International Spectroscopic Survey (KISS).
Janice C. Lee, Jason Melbourne, John J. Salzer, Kauffman G., Lambert D. L., Lequeux J., Melnick J., Pagel B. E. J., Papaderos P., Stasinska G., Vila Costas M. B.   +10 more
core   +2 more sources

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

The role of tidal interactions in driving galaxy evolution

, 2006
We carry out a statistical analysis of galaxy pairs selected from chemical hydrodynamical simulations with the aim at assessing the capability of hierarchical scenarios to reproduce recent observational results for galaxies in pairs.
C. A. Tremonti, C. Scannapieco, D. G. Lambas, G.A. Mamon, H. A. Kobulnicky, M. L. Balogh   +5 more
core   +1 more source

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Galaxy Interactions, Star Formation History, and Bulgeless Galaxies [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractHierarchical ΛCDM models provide a successful paradigm for the growth of dark matter on large scales, but they face important challenges in predicting how the baryonic components of galaxies evolve. I present constraints on two aspects of this evolution: (1) The interaction history of galaxies over the last 7 Gyr and the impact of interactions ...
openaire   +2 more sources

Diving Deeper Into Mechanisms of Acrylamide‐Induced Toxicity: RNA Sequencing Reveals Transcriptomic Alteration and Retrotransposon Expression in Drosophila melanogaster

Environmental Toxicology, EarlyView.
ABSTRACT Given the inevitability of human and animal exposure to acrylamide, there is increasing concern regarding its potential health risks. While a number of molecular mechanisms have been proposed, the complexity of acrylamide toxicological pathways and interactions remains incompletely characterized.
Oluwabukola Mary Farodoye, Titilayomi Ayomide Otenaike, Daniela Moreira Mombach, Monica Medeiros Silva, Amos Olalekan Abolaji, Elgion Lucio Da Silva Loreto   +5 more
wiley   +1 more source

The Hubble Arp Galaxy Survey

The Astrophysical Journal Supplement Series
The typical galaxy in the local Universe is expected to be in a self-regulated quasi-equilibrium, displaying a settled morphology that falls within the Hubble sequence.
Julianne J. Dalcanton, Meredith J. Durbin, Benjamin F. Williams   +2 more
doaj   +1 more source