Results 101 to 110 of about 198,670 (323)

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Geometric structures for maximal representations and pencils

open access: yesForum of Mathematics, Sigma
We study fibrations of the projective model for the symmetric space associated with $\operatorname {\mathrm {SL}}(2n,\mathbb {R})$ by codimension $2$ projective subspaces, or pencils of quadrics.
Colin Davalo
doaj   +1 more source

Classifying pro-fibrations and shape fibrations

open access: yesJournal of Pure and Applied Algebra, 1986
We first describe some categories. Let TOP denote the category whose objects are topological spaces and whose morphisms are continuous maps. Let \(TOP^ N\) denote the category whose objects are the inverse systems in TOP indexed by the set of natural numbers \({\mathbb{N}}\) (with continuous bonding maps).
Hastings, Harold M., Waner, Stefan
openaire   +2 more sources

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

open access: yesAdvanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears   +5 more
wiley   +1 more source

ECM‐Stiffness Mediated Persistent Fibroblast Activation Requires Integrin and Formin Dependent Chromatin Remodeling

open access: yesAdvanced Science, EarlyView.
Prolonged exposure to stiff extracellular matrix drives cancer‐associated fibroblasts into a persistently activated myofibroblast state. Two parallel pathways are identified: β1 integrin activation smoothens the nuclear lamina to reduce lamin–chromatin contacts, while the formin mDia2 regulates nuclear actin to alter chromatin organization.
Swathi Packirisamy   +4 more
wiley   +1 more source

On A∗-fibrations

open access: yesJournal of Pure and Applied Algebra, 2000
AbstractIn this paper we investigate minimal sufficient fibre conditions for a finitely generated flat algebra over a noetherian integral domain to be locally A∗ or at least an A∗-fibration. We also describe the structure of finitely generated locally A∗-algebras.
Bhatwadekar, S.M., Dutta, Amartya K.
openaire   +1 more source

Ciprofloxacin Induced Acute Small Fibre Neuropathy. Case Report [PDF]

open access: bronze, 2013
Odai Jumma   +3 more
openalex   +1 more source

Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses

open access: yesAdvanced Science, EarlyView.
ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti   +13 more
wiley   +1 more source

Lefschetz formula for nonlocal elliptic problems associated with fibration

open access: yesСовременная математика: Фундаментальные направления
Elliptic operator complexes associated with fibration are considered. The Atiyah-Bott-Lefschetz formula for endomorphisms of such complexes is given. The proof is based on the stationary phase method.
N. R. Orlova
doaj   +1 more source

The ITGB2‐COPS3‐SOX2 Axis and SOX2 Liquid‐Liquid Phase Separation: Dual Mechanisms Governing Osteosarcoma Stemness

open access: yesAdvanced Science, EarlyView.
Osteosarcoma stemness is driven by the ITGB2‐COPS3‐SOX2 signaling axis. This study reveals that nuclear COPS3 stabilizes SOX2, which in turn undergoes liquid‐liquid phase separation to promote stemness. Based on this mechanism, a novel COPS3 inhibitor, Z‐5891, was developed, effectively suppressing tumor growth and stemness in vivo, offering a ...
Lei Guo   +7 more
wiley   +1 more source

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