Results 61 to 70 of about 2,390,711 (295)

Variational Principle for Relative Tail Pressure

open access: yesEntropy, 2017
We introduce the relative tail pressure to establish a variational principle for continuous bundle random dynamical systems. We also show that the relative tail pressure is conserved by the principal extension.
Xianfeng Ma, Ercai Chen
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Principal $$\infty $$ ∞ -bundles: general theory [PDF]

open access: yesJournal of Homotopy and Related Structures, 2014
49 pages; v2: published version; v3: missing assumption added to Lemma 3 ...
Nikolaus, Thomas   +2 more
openaire   +3 more sources

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Harder-Narasimhan reduction of a principal bundle [PDF]

open access: yes, 2004
Let E be a principal G-bundle over a smooth projective curve over an algebraically closed field k, where G is a reductive linear algebraic group over k. We construct a canonical reduction of E.
Holla, Yogish I., Biswas, Indranil
core   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

The Principal Bundle Remains: Gomes' "Gauge theory without Principal Fiber Bundles" merely reinvents Principal Fiber Bundles as their Potential Line Bundle (Frame Bundle)

open access: yes
Gomes (2025) argues that gauge theory, as applied to the Standard Model, can be formulated without principal fiber bundles by working instead with ``structured'' vector bundles whose fibers carry an inner product and orientation.
Nielsen, Jennifer
core   +2 more sources

On principal fibre bundle of the Cartesian product manifold

open access: yes, 2013
Differentiable principal fibre bundle have been defined and studied by Kobayashi and Nomizu [3] and many other geometers. In this paper, we study structures in the principal fibre bundle. Hexalinear frame bundle is also studied and it has been shown that
Bajpai, Anmita, Nivas, Ram
core   +1 more source

Gauge and Gravity theories on a dynamical principal bundle [PDF]

open access: yes, 2023
In this paper we present original variational formulations of Yang-Mills, Einstein's gravitation and Kaluza-Klein theories, where, in the spirit of General Relativity, the principal bundle structure over the space-time is not fixed a priori but is ...
Hélein, Frédéric
core   +1 more source

Induced connections of two types on a surface of an affine space

open access: yesДифференциальная геометрия многообразий фигур, 2019
In the affine space the fundamental-group connection in the bundle associated with a surface as a manifold of tangent planes is investigated. The principal bundle contains a quotient bundle of tangent frames, the typical fiber of which is a linear group ...
A. Shults
doaj   +1 more source

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