Results 31 to 40 of about 1,078,747 (256)

A Note on the Consistency Condition of Primordial Fluctuations

open access: yes, 2012
We show that the squeezed limit of (N+1)-point functions of primordial correlation functions in which one of the modes has a very small wavenumber can be inferred from the spatial variation of locally measured N-point function. We then show how in single
Senatore, Leonardo, Zaldarriaga, Matias
core   +1 more source

QCD sum rules with two-point correlation function [PDF]

open access: yes, 1999
We construct three different sum rules from the two-point correlation function with pion, $i\int d^4x e^{iq\cdot x} $, beyond the soft-pion limit. The PS and PV coupling schemes in the construction of the phenomenological side are carefully considered in
Belyaev   +11 more
core   +3 more sources

B to light meson transition form factors calculated in perturbative QCD approach [PDF]

open access: yes, 2002
We calculate the $B\to P$, $B\to V$ (P: light pseudoscalar meson, V light vector meson) form factors in the large-recoil limit in perturbative QCD approach, including both the vector (axial vector) and tensor operators.
Lu, Cai-Dian, Yang, Mao-Zhi
core   +2 more sources

Renormalisation group flows of deformed SYK models

open access: yesJournal of High Energy Physics, 2023
We explore computationally tractable deformations of the SYK model. The deformed theories are described by the sum of two SYK Hamiltonians with differing numbers, q and q ~ $$ \overset{\sim }{q} $$ , of interacting fermions.
Dionysios Anninos   +2 more
doaj   +1 more source

Compton drag as a mechanism for very high linear polarization in Gamma-Ray Bursts

open access: yes, 2003
The recent claim by Coburn & Boggs to have detected a very high degree of linear polarization in the prompt emission of GRB 021206 has stimulated interest in how much polarization could arise in gamma-ray bursts from synchrotron emission.
Amati   +28 more
core   +1 more source

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács   +8 more
wiley   +1 more source

Liu-Nagel phase diagrams in infinite dimension

open access: yesSciPost Physics, 2018
We study Harmonic Soft Spheres as a model of thermal structural glasses in the limit of infinite dimensions. We show that cooling, compressing and shearing a glass lead to a Gardner transition and, hence, to a marginally stable amorphous solid as ...
Giulio Biroli, Pierfrancesco Urbani
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Soft algebras for leaf amplitudes

open access: yesJournal of High Energy Physics
Celestial MHV amplitudes are comprised of non-distributional leaf amplitudes associated to an AdS3 leaf of a foliation of flat spacetime. It is shown here that the leaf amplitudes are governed by the same infinite-dimensional soft ‘S-algebra’ as their ...
Walker Melton   +2 more
doaj   +1 more source

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