Results 161 to 170 of about 802,166 (283)

Functional renormalization group approach to non-collinear magnets

open access: yes, 2015
A functional renormalization group approach to $d$-dimensional, $N$-component, non-collinear magnets is performed using various truncations of the effective action relevant to study their long distance behavior.
Delamotte, B.   +3 more
core   +3 more sources

Advanced Characterization of the Spatial Variation of Moiré Heterostructures and Moiré Excitons

open access: yesSmall, EarlyView.
In this review, the authors discuss recent advanced tools to characterize and understand the effects of spatial variation and inhomogeneities in moiré heterostructures over multiple length scales. Emphasis is placed on correlating the impact of twist angle misalignment, nano‐scale disorder, and atomic relaxation on the moiré potential and moiré ...
Alberto de la Torre   +3 more
wiley   +1 more source

Evidence for a novel shift-symmetric universality class from the functional renormalization group

open access: yesPhysics Letters B, 2023
Wetterich's equation provides a powerful tool for investigating the existence and universal properties of renormalization group fixed points exhibiting quantum scale invariance.
Cristobal Laporte   +3 more
doaj  

Spectral functions in holographic renormalization group flows [PDF]

open access: yesJournal of High Energy Physics, 2009
The spectrum of two-point functions in a holographic renormalization group flow from an ultraviolet (UV) to an infrared (IR) conformal fixed point is necessarily continuous. For a toy model, the spectral function does not only show the expected UV and IR behaviours, but other interesting features such as sharp peaks and oscillations in the UV.
openaire   +4 more sources

Developmental and epileptic or epileptic encephalopathy with spike–wave activation in sleep: From the ‘functional ablation’ model to a neurodevelopmental network perspective

open access: yesDevelopmental Medicine &Child Neurology, EarlyView.
The pathophysiology of D/EE‐SWAS has traditionally been conceptualized as a cause–effect continuum wherein genetic and environmental factors influence brain morphology, subsequently inducing electrical abnormalities during sleep, resulting in cognitive impairment.
Luca Andreoli   +2 more
wiley   +1 more source

Impact of topology in foliated quantum Einstein gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We use a functional renormalization group equation tailored to the Arnowitt–Deser–Misner formulation of gravity to study the scale dependence of Newton’s coupling and the cosmological constant on a background spacetime with topology $$S^1 \times S^d$$ S ...
W. B. Houthoff, A. Kurov, F. Saueressig
doaj   +1 more source

Comparative proteomics analysis of root and nodule mitochondria of soybean

open access: yesPlant, Cell &Environment, EarlyView.
Abstract Legumes perform symbiotic nitrogen fixation through rhizobial bacteroids housed in specialised root nodules. The biochemical process is energy‐intensive and consumes a huge carbon source to generate sufficient reducing power. To maintain the symbiosis, malate is supplied by legume nodules to bacteroids as their major carbon and energy source ...
Wai‐Ching Sin   +4 more
wiley   +1 more source

ß-functions and the exact renormalization group

open access: yesNuclear Physics B, 1988
Abstract We relate s-functions to the flow of relevant couplings in the exact renormalization group. The specific case of a cutoff γφ 4 theory in four dimensions is discussed in detail. The underlying idea of convergence of the flow of effective lagrangians is developed to identify the s-functions.
Jun Liu, James Hughes
openaire   +2 more sources

Microelectrode recordings from the human cervical vagus nerve during maximal breath‐holds

open access: yesExperimental Physiology, EarlyView.
Abstract Voluntary breath‐holds can be sustained for a long time following training, but ultimately, regardless of duration, the asphyxic break‐point is reached and the apnoea terminated. The physiological changes occurring during the apnoea include a marked increase in sympathetically‐mediated vasoconstriction in non‐essential organs, such as skeletal
Vaughan G. Macefield   +7 more
wiley   +1 more source

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