Results 61 to 70 of about 90,199 (336)
Reionization and Cosmology with 21 cm Fluctuations [PDF]
, 2009 Measurement of the spatial distribution of neutral hydrogen via the redshifted 21 cm line promises to revolutionize our knowledge of the epoch of reionization and the first galaxies, and may provide a powerful new tool for observational cosmology from ...
J. Stuart B. Wyithe +4 more
core +1 more source
Science Education, EarlyView.ABSTRACT In this article I explore the case of the Mariana dam disaster in 2015 in Brazil seeking to contribute to reflections about the role of chemistry and chemistry education in environmental injustices. Drawing on stories about this disaster shared in the Dead River Podcast (2024), on wider literature and on other cases of environmental injustices
Haira E. Gandolfi
wiley +1 more source
The ΛCDM-NG Cosmological Model: A Possible Resolution of the Hubble Tension
The Astrophysical JournalWe offer a cosmological model based on conventional general relativity (no speculative physics) that may resolve the Hubble tension. A reanalysis of the foundation of the Lambda-CDM model shows that general relativity alone does not specify what fraction
Richard J. Cook
doaj +1 more source
Observational constraints on electromagnetic Born-Infeld cosmology
, 2012 The cosmological model consisting of an electromagnetic Born-Infeld (BI) field coupled to a Robertson-Walker geometry is tested with the standard probes of SNIa, GRBs and direct Hubble parameter.
Bretón, Nora +2 more
core +1 more source
Integrating multimodal data and machine learning for entrepreneurship research
Strategic Entrepreneurship Journal, EarlyView.Abstract Research Summary Extant research in neuroscience suggests that human perception is multimodal in nature—we model the world integrating diverse data sources such as sound, images, taste, and smell. Working in a dynamic environment, entrepreneurs are expected to draw on multimodal inputs in their decision making.
Yash Raj Shrestha, Vivianna Fang He
wiley +1 more source
The Aemulus Project. V. Cosmological Constraint from Small-scale Clustering of BOSS Galaxies
The Astrophysical Journal, 2023 We analyze clustering measurements of BOSS galaxies using a simulation-based emulator of two-point statistics. We focus on the monopole and quadrupole of the redshift-space correlation function, and the projected correlation function, at scales of 0.1 ...
Zhongxu Zhai +8 more
doaj +1 more source
Late Decaying Dark Matter, Bulk Viscosity and the Cosmic Acceleration
, 2008 We discuss a cosmology in which cold dark matter begins to decay into relativistic particles at a recent epoch (z < 1). We show that the large entropy production and associated bulk viscosity from such decays leads to an accelerating cosmology as ...
A. G. Doroshkevich +11 more
core +1 more source
Fabrication of Chiral Liquid Crystal Pinwheel Arrays Through Capillarity‐Assisted Particle Assembly
Small, EarlyView.Nucleation in chiral liquid crystals (LCs) is investigated using colloidal arrays produced by capillarity‐assisted particle assembly (CAPA) upon heating to spatially control the nucleation of the isotropic phase, enabling the fabrication of chiral pinwheel arrays.
Hee Seong Yun +6 more
wiley +1 more source
Revisiting the Oldest Stars as Cosmological Probes: New Constraints on the Hubble Constant
The Astrophysical Journal, 2023 Despite the tremendous advance of observational cosmology, the value of the Hubble constant ( H _0 ) is still controversial (the so-called “Hubble tension”) because of the inconsistency between local/late-time measurements and those derived from the ...
Andrea Cimatti, Michele Moresco
doaj +1 more source
New Directions for Teaching and Learning, EarlyView.ABSTRACT This chapter simultaneously tells a story and examines the process of storytelling as it shares ideas about the decolonization of drama, theatre, and performance provoked by participating in a Disrupting interview process that included an individual interview and a land‐based medicine walk.
Kelsey Jacobson
wiley +1 more source