Results 61 to 70 of about 57,596 (307)

α‐Synuclein aggregation landscape from phase separation to neurotoxic intermediates

open access: yesFEBS Letters, EarlyView.
Alpha‐synuclein aggregation in Parkinson's disease involves a complex landscape of transient intermediates, including oligomers, fibrils and liquid–liquid phase separation (LLPS). A view is emerging in which LLPS maturation into solid‐like condensates may contribute to the formation of neurotoxic species.
Silvia Arino   +2 more
wiley   +1 more source

Geometric Integrators for Classical Spin Systems [PDF]

open access: yesJournal of Computational Physics, 1997
Practical, structure preserving methods for integrating classical Heisenberg spin systems are discussed. One of the new integrators, the Lie-Poisson method, is derived based upon a Hamiltonian splitting: it conserves all of the integrals (spin-length and total spin) of the differential equations but the energy.
J.E. Frank (Jason)   +2 more
openaire   +1 more source

Mixed-Spin Kagome Strip: Classical Phase Diagram [PDF]

open access: yes, 2020
Petrova SI, Ivanov NB, Schnack J. Mixed-Spin Kagome Strip: Classical Phase Diagram. Acta Physica Polonica A . 2020;137(5):976-978.We analyze the classical phase diagram of a mixed-spin Heisenberg system defined on a kagome strip which is a cutout from ...
Schnack, Jürgen ; https://orcid.org/   +2 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Invariant tensors for the spin representation of $\frak{so}$(7) [PDF]

open access: yes, 2008
We give a graphical calculus for the invariant tensors of the eight dimensional spin representation of the quantum group Uq(B3). This leads to a finite confluent presentation of the centraliser algebras of the tensor powers of this representation and a ...
Westbury, Bruce W.
core   +1 more source

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

Generalized model of interacting integrable tops

open access: yesJournal of High Energy Physics, 2019
We introduce a family of classical integrable systems describing dynamics of M interacting gl N integrable tops. It extends the previously known model of interacting elliptic tops. Our construction is based on the GL N R-matrix satisfying the associative
A. Grekov, I. Sechin, A. Zotov
doaj   +1 more source

USP29‐regulated noncanonical stabilization of the hypoxia‐inducible factor‐α in aggressive prostate cancer

open access: yesMolecular Oncology, EarlyView.
We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober   +16 more
wiley   +1 more source

The relation between classical and quantum electrodynamics [PDF]

open access: yes, 2008
In this article it is presented the idea that quantum electrodynamics presents intrinsic limitations in the description of physical processes that makes it impossible to recover from it the type of description we have with classical electrodynamics.
Bacelar Valente, Mario
core  

Classical spin simulations with a quantum two-spin correction [PDF]

open access: yes, 2019
Classical simulations of high-temperature nuclear spin dynamics in solids are known to accurately predict relaxation for spin 1/2 lattices with a large number of interacting neighbors.
Patrick Navez   +2 more
core   +1 more source

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