Results 31 to 40 of about 662 (183)

Systematic Bias in Ionizing Radiation Escape Fraction Measurements from Foreground Large-scale Structures

The Astrophysical Journal
We investigate the relationship between the Ly α forest transmission in the intergalactic medium (IGM) and the environmental density of galaxies, focusing on its implications for the measurement of ionizing radiation escape fractions.
Claudia M. Scarlata, Wanjia Hu, Matthew J. Hayes, S. Taamoli, Ali A. Khostovan, C. M. Casey, Andreas L. Faisst, Jeyhan S. Kartaltepe, Yu-Heng Lin, Mara Salvato, Marc Rafelski   +10 more
doaj   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

Astronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar, René Hudec, Marta Mara Merono Vidagany, Fehmi Mejri   +3 more
wiley   +1 more source

Tail wagging cats: Veterinary implications of AI‐generated video

Veterinary Record, EarlyView.
Abstract Background Generative artificial intelligence (genAI) has the capacity to create realistic and convincing animal videos; however, it must simplify and reduce behavioural variation to do so, possibly leading to misinformation. Methods We categorised 29 videos in the press release for a specific video genAI engine. Twelve featured animals.
Jill R. D. MacKay, Louise Connelly
wiley   +1 more source

Analytical Description of the Distributions of Primary and Secondary Cosmogenic Particles

Advances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, we present an analytical description of the energy distributions of primary and secondary cosmogenic particles on Earth in terms of parameters having clear physical meaning. A modified power law is assumed for energy distributions, incorporating terms such as energy loss/decay, which are effective at low energies, and a source term, which
Shvetaank Tripathi, Prashant Shukla, Subhash Singha   +2 more
wiley   +1 more source

Investigating Ionization in the Intergalactic Medium

The Astrophysical Journal
The intergalactic medium (IGM) contains >50% of the baryonic mass of the Universe, yet the mechanisms responsible for keeping the IGM ionized have not been fully explained.
Brad Koplitz, Anjali Ramesh, Sanchayeeta Borthakur   +2 more
doaj   +1 more source

Towards a Fregean psycholinguistics

Analytic Philosophy, Volume 66, Issue 3, Page 349-371, September 2025.
Abstract This paper is partly exegetical, partly systematic. I argue that Frege's account of what he called “colouring” contains some important insights on how communication is related to mental states such as mental images or emotions. I also show that the Fregean perspective is supported by current research in psycholinguistics and that a full ...
Thorsten Sander
wiley   +1 more source

The Fractal Geometry of the Cosmic Web and Its Formation

Advances in Astronomy, Volume 2019, Issue 1, 2019., 2019
The cosmic web structure is studied with the concepts and methods of fractal geometry, employing the adhesion model of cosmological dynamics as a basic reference. The structures of matter clusters and cosmic voids in cosmological N‐body simulations or the Sloan Digital Sky Survey are elucidated by means of multifractal geometry.
Jose Gaite, Geza Kovacs
wiley   +1 more source

Constraints on the Evolution of the Ionizing Background and Ionizing Photon Mean Free Path at the End of Reionization

The Astrophysical Journal
The variations in Ly α forest opacity observed at z > 5.3 between lines of sight to different background quasars are too strong to be caused by fluctuations in the density field alone.
Frederick B. Davies, Sarah E. I. Bosman, Prakash Gaikwad, Fahad Nasir, Joseph F. Hennawi, George D. Becker, Martin G. Haehnelt, Valentina D’Odorico, Manuela Bischetti, Anna-Christina Eilers, Laura C. Keating, Girish Kulkarni, Samuel Lai, Chiara Mazzucchelli, Yuxiang Qin, Sindhu Satyavolu, Feige Wang, Jinyi Yang, Yongda Zhu   +18 more
doaj   +1 more source

Communicating tokenomics and monetary policy: A comparative analysis of real and virtual economies

International Journal of Finance &Economics, Volume 30, Issue 3, Page 2849-2866, July 2025.
Abstract This article investigates the economic governance of blockchain‐based virtual economies in the context of monetary policy. Focusing on tokenomics communication, we employ deductive and inductive approaches, applying real‐world monetary policy metrics and text mining frameworks. Our comparative analysis reveals that the tokenomics communication
Kane Falco ter Veer, Timo Heinrich
wiley   +1 more source

The Predicament of Absorption-dominated Reionization. II. Observational Estimate of the Clumping Factor at the End of Reionization

The Astrophysical Journal
The history of reionization reflects the cumulative injection of ionizing photons by sources and the absorption of ionizing photons by sinks. The latter process is traditionally described in terms of a “clumping factor,” which encodes the average ...
Frederick B. Davies, Sarah E. I. Bosman, Steven R. Furlanetto   +2 more
doaj   +1 more source