Results 111 to 120 of about 55,785 (258)
The polyphasic approach (morphology, physiology, biochemistry and genetics) was used to characterize Acetobacter indonesiensis strain UNPADCC 01‐5, which was isolated from oncom merah. The strain's potential as a culture for acidic fermentations and a biofunctional agent was supported by its adaptive characteristics, which included acid tolerance ...
Yolani Syaputri +9 more
wiley +1 more source
How surface density of galaxy disks affects metallicity? Outflow and Accretion [PDF]
AbstractIn this study, we examine the effect of surface density of disks on chemical evolution of galaxies. We find that, higher surface brightness galaxies on average possess higher gas-phase metallicity compared to lower surface brightness galaxies with the same stellar and gas mass.
Po-Feng Wu +3 more
openaire +1 more source
Autoparallels and the Inverse Problem of the Calculus of Variations
ABSTRACT We prove that autoparallel curves associated with a torsion‐free but not necessarily metric‐compatible affine connection can be derived from an action principle. We explicitly construct the action functional and show by standard variational techniques that it produces the desired equations.
Lavinia Heisenberg
wiley +1 more source
The growth of discs and bulges during hierarchical galaxy formation – I. Fast evolution versus secular processes [PDF]
We present a theoretical model for the evolution of mass, angular momentum and size of galaxy disks and bulges, and we implement it into the semi-analytic galaxy formation code SAGE.
C. Tonini +3 more
semanticscholar +1 more source
Evidence for Multiple Orbiting Hotspots in the 340 GHz Variability of Sgr A*
We analyzed 11 epochs of archival Atacama Large Millimeter/submillimeter Array (ALMA) data to investigate the flux density variability of Sgr A* at 340 GHz. In one epoch, the light curve exhibits two short-timescale components with characteristic periods
Kazuki Yanagisawa +5 more
doaj +1 more source
The Orientation of Accretion Disks Relative to Dust Disks in Radio Galaxies
2 pages, 1 figure. To appear in "Active Galactic Nuclei, from Central Engine to Host Galaxy", eds Collin, Combes & Shlosman.
openaire +2 more sources
Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model
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
Hydro-Gravitational Dynamics of Planets and Dark Energy
Self gravitational fluid mechanical methods termed hydro-gravitational-dynamics (HGD) predict plasma fragmentation 0.03 Myr after the turbulent big bang to form protosuperclustervoids, turbulent protosuperclusters, and protogalaxies at the 0.3 Myr ...
Carl H. Gibson, R.E, Schild
doaj
A Face-on Accretion Disk Geometry Revealed by Millimeter-wave Periodicity in Sgr A∗
We analyzed 77 epochs of Atacama Large Millimeter/submillimeter Array archival data to investigate flux variability in Sagittarius A ^∗ , the supermassive black hole at the Galactic center.
Kazuki Yanagisawa +5 more
doaj +1 more source
CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard +11 more
wiley +1 more source

