Results 71 to 80 of about 6,544,802 (296)
Conformal Gravity: Dark Matter and Dark Energy
Entropy, 2013 This short review examines recent progress in understanding dark matter, dark energy, and galactic halos using theory that departs minimally from standard particle physics and cosmology.
Robert K. Nesbet
doaj +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
LSST Strong Lensing Systems Dark Matter Sensitivity Analysis with Neural Ratio Estimators
The Astrophysical JournalStrong gravitational lensing offers a unique probe of dark matter (DM) on subgalactic scales, where the abundance and distribution of low-mass halos are highly sensitive to the underlying properties of DM particles.
Andreas Filipp +4 more
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Scattering of dark matter and dark energy [PDF]
Physical Review D, 2010 5 pages, 4 figures, minor changes reflect published ...
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Physical Review D, 2010 Dark energy dynamics in the recent universe is influenced by its evolution through the long, matter dominated expansion history. A particular dynamical property, the flow variable, remains constant in several classes of scalar field models as long as matter dominates; the dark energy is only free to diverge in behavior at recent times.
Cortês, Marina, Linder, Eric V.
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FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
A comparison of optimisation algorithms for high-dimensional particle and astrophysics applications
Journal of High Energy Physics, 2021 Optimisation problems are ubiquitous in particle and astrophysics, and involve locating the optimum of a complicated function of many parameters that may be computationally expensive to evaluate.
The DarkMachines High Dimensional Sampling Group +20 more
doaj +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Physical Review D, 2020 Theories with a pole in the kinetic term have been used to great effect in studying inflation, owing to their quantum stability and attractor properties. We explore the use of such pole kinetic terms in dark energy theories, finding an interesting link between thawing and freezing models, and the possibility of enhanced plateaus with ``superattractor''-
openaire +2 more sources
Journal of Cosmology and Astroparticle Physics, 2008 9 pages, 10 ...
de Putter, Roland, Linder, Eric V.
openaire +2 more sources