Results 91 to 100 of about 2,396,626 (307)

Escape from TGF‐β‐induced senescence promotes aggressive hallmarks in epithelial hepatocellular carcinoma cells

open access: yesMolecular Oncology, EarlyView.
Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu   +11 more
wiley   +1 more source

Optical Analysis of the Impact Transmission in Steel Sheet Arrays with Bolted-Type Joints

open access: yesApplied Sciences, 2023
This research leads with the analysis of a structural joint. Different arrays of steel sheets were joined using bolts. The structures were built in a metallic box filled with Granitic 0/3 sand.
Víctor Martínez-Calzada   +3 more
doaj   +1 more source

Three-loop critical exponents, amplitude functions, and amplitude ratios from variational perturbation theory

open access: yes, 2000
We use variational perturbation theory to calculate various universal amplitude ratios above and below T_c in minimally subtracted phi^4-theory with N components in three dimensions.
A. R. Rajantie   +69 more
core   +1 more source

Model selection for amplitude analysis [PDF]

open access: yes, 2015
Model complexity in amplitude analyses is often a priori under-constrained since the underlying theory permits a large number of possible amplitudes to contribute to most physical processes.
Guegan, Baptiste   +3 more
core   +2 more sources

New Recursion Relations for Tree Amplitudes of Gluons [PDF]

open access: yesNucl.Phys.B715:499-522,2005, 2004
We present new recursion relations for tree amplitudes in gauge theory that give very compact formulas. Our relations give any tree amplitude as a sum over terms constructed from products of two amplitudes of fewer particles multiplied by a Feynman propagator.
arxiv   +1 more source

M5-brane amplitudes [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2020
The dynamics of a probe M5-brane, embedded as a hypersurface in eleven-dimensional Minkowski spacetime, is described by a six-dimensional world-volume theory. This theory has a variety of interesting symmetries some of which are obscure in the Lagrangian formulation of the theory.
openaire   +6 more sources

Time, the final frontier

open access: yesMolecular Oncology, EarlyView.
This article advocates integrating temporal dynamics into cancer research. Rather than relying on static snapshots, researchers should increasingly consider adopting dynamic methods—such as live imaging, temporal omics, and liquid biopsies—to track how tumors evolve over time.
Gautier Follain   +3 more
wiley   +1 more source

Impact of Arm Length and Body Mass Index on Abductor Pollicis Brevis (APB) H-Reflex among Females [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2019
Introduction: Hoffmann reflex (H-reflex) is an electrically induced reflex analogous to the mechanically induced spinal stretch reflex. H-reflex is useful clinically to diagnose nerve root lesions, particularly involving S1 radiculopathy and in proximal ...
D Rekha, B Suganthi
doaj   +1 more source

On the pion electroproduction amplitude

open access: yes, 2001
We analyze amplitudes for the pion electroproduction on proton derived from Lagrangians based on the local chiral SU(2) x SU(2) symmetries. We show that such amplitudes do contain information on the nucleon axial form factor F_A in both soft and hard ...
A. Liesenfeld   +33 more
core   +1 more source

Relations Between Closed String Amplitudes at Higher-order Tree Level and Open String Amplitudes [PDF]

open access: yesNucl.Phys.B824:314-330,2010, 2009
KLT relations almost factorize closed string amplitudes on $S_2$ by two open string tree amplitudes which correspond to the left- and the right- moving sectors. In this paper, we investigate string amplitudes on $D_2$ and $RP_2$. We find that KLT factorization relations do not hold in these two cases.
arxiv   +1 more source

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