Results 61 to 70 of about 724 (182)

Eternal inflation with Liouville cosmology [PDF]

open access: yesNuclear Physics B, 2011
32 pages, v2: published version, many ...
openaire   +3 more sources

U‐Net Based Machine Learning for Identification of Auroras in Space‐Based Images

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract We use a Semantic Segmentation based U‐Net model to predict the appearance of various classifications of aurora present in near‐infrared images from the Fast Auroral Imager (FAI) onboard the CASSIOPE satellite. We manually labeled pixels from a set of 4091 FAI near‐infrared images into 7 different classes: no aurora, contaminated, diffuse ...
Amit Kain   +4 more
wiley   +1 more source

Higgs Inflation and the Cosmological Constant [PDF]

open access: yesActa Physica Polonica B, 2014
The Higgs not only induces the masses of all SM particles, the Higgs, given its special mass value, is the natural candidate for the inflaton and in fact is ruling the evolution of the early universe, by providing the necessary dark energy which remains the dominant energy density.
openaire   +3 more sources

Why do Public Debates Escalate? Trigger Points and the Moral Dynamics of “Hot Politics”

open access: yesThe British Journal of Sociology, Volume 77, Issue 4, Page 701-712, September 2026.
ABSTRACT Escalating, emotionally charged, and moralized forms of controversy are a central feature of contemporary politics. Our study develops a framework for understanding how political debates between ordinary citizens become heated; why certain issues provoke particularly strong emotions; and how this affective potential is weaponized by ...
Linus Westheuser   +2 more
wiley   +1 more source

Starobinsky-Like Inflation and Running Vacuum in the Context of Supergravity

open access: yesUniverse, 2016
We describe the primeval inflationary phase of the early Universe within a quantum field theoretical (QFT) framework that can be viewed as the effective action of vacuum decay in the early times. Interestingly enough, the model accounts for the “graceful
Spyros Basilakos   +2 more
doaj   +1 more source

A symmetric DBI action theory and its applications to inflationary cosmology

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The Dirac-Born-Infeld (DBI) field theory in string theory is important and can provide the field of the universe’s inflation. At the same time, it provides a causal mechanism for generating the original density perturbation, thereby providing the ...
Xiaokun Yang   +2 more
doaj   +1 more source

The Mutable Original: How Chinese Counterfeits Become Nigerian Originals in African Markets

open access: yesAmerican Anthropologist, Volume 128, Issue 3, Page 581-594, September 2026.
ABSTRACT Affordable Chinese copies of Western brands are ubiquitous in African markets. Despite democratizing consumer access, these goods appear to cement hegemonic value hierarchies that rank Chinese or local products as inferior to Western goods.
Jing Jing Liu
wiley   +1 more source

Confronting mukhanov parametrization of inflationary equation-of-State with ACT-DR6

open access: yesNuclear Physics B
We provide a simple yet effective semi-analytical approach to confront Mukhanov Parametrization of inflationary equation-of-state, 1+ω=β(N+1)α, with the latest ACT-DR6 data employing Hamilton-Jacobi formulation.
Barun Kumar Pal
doaj   +1 more source

Framing “African”: Music, Dance, and the Politics of Identity in Guyana's Emancipation Day Celebrations

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 3, September 2026.
ABSTRACT Emancipation Day commemorates the end of slavery and is observed annually by African Guyanese on the first Monday in August. Celebrations provide a space to honor ancestors, express gratitude, mourn, and engage in cultural rejuvenation through communal activities such as night vigils, libation ceremonies, drumming, dancing, and pilgrimages to ...
Gillian Richards‐Greaves
wiley   +1 more source

Characterization of coesite‐bearing impact melt glass from the Hapcheon crater, Korea: Trimodal phase architecture, shock metamorphism, and implications for 40Ar/39Ar geochronology

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 9, Page 2233-2257, September 2026.
Abstract We present the first micrometer‐scale, phase‐resolved compositional characterization of impact melt glass from the Hapcheon crater (~1.4 km apparent diameter), the first confirmed impact structure on the Korean Peninsula, integrating EPMA‐WDS (5 μm spot), confocal Raman spectroscopy (<1 μm spot), XRD, and 40Ar/39Ar step‐heating geochronology ...
Jin‐Young Lee   +2 more
wiley   +1 more source

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