Results 121 to 130 of about 1,325 (293)

Quantum Phenomena in Molecular and Biological Systems: A Decoherence‐Based Decision Framework With Falsifiable Predictions and a Failure‐Mode Taxonomy

open access: yesAdvanced Physics Research, EarlyView.
A physics‐grounded framework based on decoherence timescales (τ_dec vs τ_func), Markovian validity, and falsifiability criteria is applied across molecular systems to distinguish where quantum effects are necessary, marginal, or irrelevant. The analysis integrates quantum chemistry, biological quantum mechanisms, and quantum computing under a unified ...
Sarfaraz K. Niazi
wiley   +1 more source

Optics in the Gödel universe: Effects of global rotation and Planck-scale corrections

open access: yesNuclear Physics B
We investigate the propagation of a massless scalar field in the Gödel universe and demonstrate that the rotating spacetime functions as an intrinsically optically active medium, characterized by a refractive index that depends on both position and ...
Omar Mustafa   +2 more
doaj   +1 more source

Resonant Tunneling in Laser‐Dressed Double‐Barrier Nanostructures: Role of Potential Geometry

open access: yesAdvanced Physics Research, EarlyView.
A schematic illustration of laser‐dressed double‐barrier nanostructures with rectangular, parabolic, and triangular potential profiles is presented. The intense laser field modifies the effective confinement potential, leading to a shift in resonance energies.
Recep Aydın, Mehmet Batı
wiley   +1 more source

Giant gravitons and volume minimisation

open access: yesJournal of High Energy Physics
We establish a precise correspondence between the giant graviton expansion of the superconformal index of field theories in D ≤ 4, and the master volume formalism of Gauntlett, Martelli and Sparks (GMS) which determines the near horizon geometries of ...
Heng-Yu Chen   +4 more
doaj   +1 more source

The morphology of the oval window in Paranthropus robustus compared to humans and other modern primates

open access: yesThe Anatomical Record, EarlyView.
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley   +1 more source

Some properties of Riesz means and spectral expansions

open access: yesElectronic Journal of Differential Equations, 1999
It is well known that short-time expansions of heat kernels correlate to formal high-frequency expansions of spectral densities. It is also well known that the latter expansions are generally not literally true beyond the first term.
S. A. Fulling, R. A. Gustafson
doaj  

Inferring Rheumatoid Arthritis Disease Activity Status From the Electronic Health Records Across Health Systems

open access: yesArthritis &Rheumatology, EarlyView.
Objective Disease activity plays a central role in rheumatoid arthritis (RA) clinical studies. The inconsistent availability of data on disease activity in real‐world electronic health records (EHRs) data has limited the ability to generate real‐world evidence (RWE).
David Cheng   +34 more
wiley   +1 more source

Firm‐Size Heterogeneity in the Effects of ESG Disclosure on Firm Value Under Institutional Reform: Evidence From Japan

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Focusing on firm‐size heterogeneity, this study examines how institutional reform reshapes the effects of environmental, social, and governance (ESG) disclosure on firm value. Using 2019–2023 panel data on 1427 Japanese listed firms (before and after the 2022 Tokyo Stock Exchange reorganization and Corporate Governance Code revision), this ...
Akio Nakashima, Kimitaka Nishitani
wiley   +1 more source

Precise asymptotics for record times and the associated counting process

open access: yesStochastic Processes and their Applications, 2002
Let \( X_1, X_2,\dots , \) be i.i.d.\ absolutely continuous random variables, \(L_n\) be their record times, i.e.\ \(L_1=1,\, L_n = \min \{k: X_k > X_{L(n-1)}\},\, n\geq 2, \) and \(\mu (n)\) be the associated counting process of records, \(\mu (n) = \max \{k: L(k) \leq n\}.\) A precise asymptotics is proved for infinite sums of type \(\sum \frac ...
openaire   +1 more source

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