Results 71 to 80 of about 4,678 (262)
Five-point superluminality bounds
Journal of High Energy PhysicsWe investigate how the speed of propagation of physical excitations is encoded in the coefficients of five-point interactions. This leads to a superluminality bound on scalar five-point interactions, which we present here for the first time.
Francesco Serra, Leonardo G. Trombetta
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Pregeometry and spontaneous time-space asymmetry
Journal of High Energy Physics, 2022 In pregeometry a metric arises as a composite object at large distances. We investigate if its signature, which distinguishes between time and space, could be a result of the dynamics rather than being built in already in the formulation of a model.
C. Wetterich
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Advanced Science, EarlyView.This review explains how chronic liver injury progresses toward hepatocellular carcinoma through interconnected changes in gut microbes, metabolism, immunity, fibrosis, and diet. It highlights microbial metabolites, bile‐acid signaling, immune dysfunction, and nutritional or microbiome‐based interventions as opportunities to identify risk earlier ...
Yi Hu +5 more
wiley +1 more source
Ethical Precision in Nanoscale Brain Interfacing
Advanced Science, EarlyView.As brain interfaces approach the nanoscale, precision no longer only measures—it knows, predicts, and potentially reshapes the mind. This work argues that traditional ethics fails under such conditions and proposes a shift toward continuous, operation‐based governance using the recovery–discovery framework to track, constrain, and responsibly steer ...
Guilherme Wood
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Harnessing Phase Separation for the Development of High‐Performance Hydrogels
Advanced Science, EarlyView.ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao +3 more
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Nonlinear relativistic tidal response of neutron stars
Journal of High Energy PhysicsWe investigate the nonlinear tidal response of relativistic neutron stars by computing the fully relativistic, static, quadratic Love numbers. Using both the worldline effective field theory for extended gravitating bodies and second-order perturbations ...
Paolo Pani +4 more
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Scattering Amplitude Techniques in Classical Gauge Theories and Gravity
, 2022 PhD ...
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A unified theory of gravity and electromagnetism: Classical and quantum aspects [PDF]
Pramana, 2019 A unified classical theory of gravity and electromagnetism with a torsion vector $$\Gamma _i \ne 0$$ , proposed by S N Bose in 1952, is introduced.
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Advanced Science, EarlyView.We present the MyoRobot 3.0, an advanced platform that combines high‐resolution imaging with automated mechanical testing to improve the accuracy of single muscle fibre analysis. The system tracks fibre diameter changes during stretch, preventing major stress miscalculations.
Michael Haug +5 more
wiley +1 more source
Stable causality and microcausality for Drummond–Hathrell photons
Journal of High Energy PhysicsLocal superluminal photon propagation arises at O α / m e 2 $$ \mathcal{O}\left(\alpha /{m}_e^2\right) $$ in the Drummond Hathrell (DH) effective action obtained by integrating out the electron in QED coupled to gravity.
Madhukar Deb, Jay Desai, Diptimoy Ghosh
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