Results 51 to 60 of about 105,694 (241)

Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity

open access: yesAnnalen der Physik, EarlyView.
This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley   +1 more source

Early Results from GLASS-JWST. XVI. Discovering a Bluer z ∼ 4–7 Universe through UV Slopes

open access: yesThe Astrophysical Journal Letters, 2023
We use the GLASS-JWST Early Release Science NIRCam parallel observations to provide a first view of the UV continuum properties of NIRCam/F444W selected galaxies at 4 < z < 7.
Themiya Nanayakkara   +22 more
doaj   +1 more source

Flow Cytometry: Advances, Challenges and Trends

open access: yesBioEssays, EarlyView.
Recent advances in flow cytometry span hardware, data processing, and AI‐driven analytics. Emerging modalitiesincluding spectral, imaging, mass, and nano/EV cytometryenable higher‐parameter and small‐particle detection. Integrated machine learning drives a shift from manual gating toward automated multi‐omics workflows.
J. Paul Robinson   +2 more
wiley   +1 more source

First Constraints on Dense Molecular Gas at z = 7.5149 from the Quasar Pōniuā‘ena

open access: yesThe Astrophysical Journal Letters, 2023
We report the detection of CO(6–5) and CO(7–6) and their underlying continua from the host galaxy of quasar J100758.264+211529.207 (Pōniuā‘ena) at z = 7.5149, obtained with the NOrthern Extended Millimeter Array.
Chiara Feruglio   +15 more
doaj   +1 more source

Extreme Cosmic-Ray-Dominated-Regions: a new paradigm for high star formation density events in the Universe

open access: yes, 2011
We examine in detail the recent proposal that extreme Cosmic-Ray-Dominated-Regions (CRDRs) characterize the ISM of galaxies during events of high-density star formation, fundamentally altering its initial conditions (Papadopoulos 2010).
Acciari   +76 more
core   +2 more sources

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik   +3 more
wiley   +1 more source

Cosmic Dust Aggregation with Stochastic Charging

open access: yes, 2013
The coagulation of cosmic dust grains is a fundamental process which takes place in astrophysical environments, such as presolar nebulae and circumstellar and protoplanetary disks.
Hyde, Truell W.   +2 more
core   +1 more source

Potential of Soils Natural Sorbents for Environmental Decontamination From 137Cs

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT This study addresses the existing research gap concerning the lack of integrated data on the role of in situ soil components in the long‐term fixation of 137Cs under natural, protected, and non‐agricultural conditions. The contamination of ecosystems by radioactive isotopes, particularly 137Cs, represents a considerable environmental hazard ...
Katarzyna Szarłowicz   +3 more
wiley   +1 more source

Electrostatic Dust Analyzer for Dust Transport Measurements on the Lunar Surface

open access: yesThe Planetary Science Journal
Lunar dust charging and transport is a more than five-decade-old problem. A high-fidelity and flight-qualified Electrostatic Dust Analyzer (EDA) has been developed to measure the charge, velocity, mass (size), and flux of electrostatically lofted dust ...
X. Wang   +14 more
doaj   +1 more source

Electromagnetic scattering by a polydispersion of small charged cosmic dust particles

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
Some recent studies on extended red emissions suggest the presence of very small dust particles in the Universe. The sizes of these particles vary from 1 nm to some tens of nanometers, thus situating them deeply in the Rayleigh region if computations are
M. Kocifaj, J. Klavcka, G. Videen
doaj   +1 more source

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