Results 71 to 80 of about 488,642 (308)

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Gauge-Invariant Perturbations at a Quantum Gravity Bounce

open access: yesUniverse, 2022
We study the dynamics of gauge-invariant scalar perturbations in cosmological scenarios with a modified Friedmann equation, such as quantum gravity bouncing cosmologies.
Steffen Gielen, Lisa Mickel
doaj   +1 more source

Field Theory and the Cohomology of Some Galois Groups

open access: yesJournal of Algebra, 2001
We prove that two arithmetically significant extensions of a field F coincide if and only if the Witt ring WF is a group ring Z/n[G]. Furthermore, working modulo squares with Galois groups which are 2-groups, we establish a theorem analogous to Hilbert's Theorem 90 and show that an identity linking the cohomological dimension of the Galois group of the
Adem, Alejandro   +3 more
openaire   +3 more sources

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

open access: yesMolecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova   +14 more
wiley   +1 more source

Progress in Solving the Nonperturbative Renormalization Group for Tensorial Group Field Theory

open access: yesUniverse, 2019
This manuscript aims at giving new advances on the functional renormalization group applied to the tensorial group field theory. It is based on the series of our three papers (Lahoche, et al., Class. Quantum Gravity 2018, 35, 19), (Lahoche, et al., Phys.
Vincent Lahoche, Dine Ousmane Samary
doaj   +1 more source

Heavy handed quest for fixed points in multiple coupling scalar theories in the ε expansion

open access: yesJournal of High Energy Physics, 2021
The tensorial equations for non trivial fully interacting fixed points at lowest order in the ε expansion in 4 − ε and 3 − ε dimensions are analysed for N-component fields and corresponding multi-index couplings λ which are symmetric tensors with four or
Hugh Osborn, Andreas Stergiou
doaj   +1 more source

Renormalization group flows for the second Z(N) parafermionic field theory for N even

open access: yes, 2010
Extending the results obtained in the case N odd, the effect of slightly relevant perturbations of the second parafermionic field theory with the symmetry Z(N) are studied for N even. The renormalization group equations, and their infra red fixed points,
Estienne, B., B. Estienne
core   +1 more source

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

open access: yesMolecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau   +8 more
wiley   +1 more source

GALOIS GROUPS IN RATIONAL CONFORMAL FIELD THEORY [PDF]

open access: yesInternational Journal of Modern Physics B, 2008
It was established before that fusion rings in a rational conformal field theory (RCFT) can be described as rings of polynomials, with integer coefficients, modulo some relations. We use the Galois group of these relations to obtain a local set of equations for the points of the fusion variety.
openaire   +2 more sources

A deformed Poincaré invariance for group field theories [PDF]

open access: yesClassical and Quantum Gravity, 2010
11 ...
Girelli, Florian, Livine, Etera R.
openaire   +2 more sources

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