Results 81 to 90 of about 2,129 (213)
Zeitschrift für anorganische und allgemeine Chemie, EarlyView.The crystal structures of the high‐temperature and low‐temperature phases of silver pyrophosphate are reported. The structural results are complemented by thermal analysis, vibrational and 31P‐MAS‐NMR spectroscopy studies, and density functional theory calculations.
Matthias Weil +8 more
wiley +1 more source
On the Rotation Curve of Disk Galaxies in General Relativity
The Astrophysical Journal, 2022 Abstract Recently, it has been suggested that the phenomenology of flat rotation curves observed at large radii in the equatorial plane of disk galaxies can be explained as a manifestation of general relativity (GR) instead of the effect of dark matter (DM) halos.
openaire +3 more sources
Observational rotation curves and density profiles vs. the Thomas-Fermi galaxy structure theory [PDF]
, 2014 15 pages, 8 figuresInternational audienceThe Thomas-Fermi approach to galaxy structure determines selfconsistently the fermionic warm dark matter (WDM) gravitational potential given the distribution function f(E).
Salucci, P. +3 more
core +1 more source
The Discrepancy in Galaxy Rotation Curves
, 2019 In this work we try a new approach for dealing with the discrepancy between observed galaxy rotation curves and theoretical predictions. This new approach does not involve any changes in the current fundamental laws of nature or the addition of dark halos.
Roy Gomel, Tomer Zimmerman
openaire +2 more sources
PROBES. I. A Compendium of Deep Rotation Curves and Matched Multiband Photometry
The Astrophysical Journal Supplement Series, 2022 We present the Photometry and Rotation Curve Observations from Extragalactic Surveys (PROBES) compendium of extended rotation curves for 3163 late-type spirals, with matching homogeneous multiband photometry for 1677 of them.
Connor Stone +4 more
doaj +1 more source
FaceIt: Real‐Time On‐Device Identity‐Preserving Portrait Animation
Computer Graphics Forum, EarlyView.A real‐time, on‐device algorithm for animating a single portrait image using detailed facial expressions and motions from a driving video achieving visual quality that can outperform even techniques with significantly higher computational overhead. Abstract Recently, significant progress has been made in generating expressive and temporally coherent ...
M. Dvorožňák +7 more
wiley +1 more source
Quantum modified inertia: application to galaxy rotation curves
European Physical Journal C: Particles and FieldsThis work explores modified inertia in the context of galactic dynamics by investigating the consequences of introducing bounds on acceleration. Building on earlier ideas related to maximal acceleration and quantum speed limits, an effective framework is
Jonathan Gillot
doaj +1 more source
Are the Galaxies with Indefinitely Flat Circular Velocities Located Inside Large Dark Matter Haloes?
UniverseA recent study using weak gravitational lensing revealed that the rotation curves of some isolated galaxies are found at a very large distance from their galactic centres. This may provide strong evidence supporting Modified Newtonian Dynamics (MOND) and
Man Ho Chan +2 more
doaj +1 more source
Behavioural Determinants of Post‐Brushing Dental Plaque Levels: A Video‐Based Analysis
International Journal of Dental Hygiene, EarlyView.ABSTRACT Objectives Toothbrushing remains the most widely practiced method for dental plaque removal. However, evidence‐based guidance on optimal brushing method, duration, toothbrush bristle wear, and dentifrice quantity is still insufficient. This study aimed to identify behavioural factors associated with post‐brushing dental plaque levels using ...
Jeongmin Ko +2 more
wiley +1 more source
Towards the Explanation of Flatness of Galaxies Rotation Curves
Universe, 2022 We suggest a new explanation of the flatness of galaxies rotation curves without invoking dark matter. For this purpose, a new gravitational tensor field is introduced in addition to the metric tensor.
openaire +3 more sources