Results 41 to 50 of about 25,446 (301)
FEBS Letters, EarlyView.Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai +4 more
wiley +1 more source
Non-Lorentzian theories with and without constraints
Journal of High Energy Physics, 2023 We exhibit a new method of constructing non-Lorentzian models by applying a method we refer to as starting from a so-called seed Lagrangian. This method typically produces additional constraints in the system that can drastically alter the physical ...
Eric A. Bergshoeff +2 more
doaj +1 more source
Space-time Symmetries and Simple Superalgebras [PDF]
Fortschritte der Physik, 2001 8 pages, Contribution to the Proceedings of the First Workshop of the RTN Network "The Quantum structure of spacetime and the geometric nature of fundamental interactions", Berlin, Germany, 4-10 October ...
openaire +3 more sources
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
Dust, Time, and Symmetry [PDF]
, 2004 Two symmetry arguments are discussed, each purporting to show that there is no more room in general relativistic cosmology than in Minkowski spacetime for a preferred division of spacetime into instants of time.
Belot, Gordon
core
Non-Lorentzian expansions of the Lorentz force and kinematical algebras
Journal of High Energy PhysicsWe consider non-Lorentzian expansions, Galilean and Carrollian, of the Lorentz force equation in which both the particle position and the electro-magnetic field are expanded.
José Luis V. Cerdeira +2 more
doaj +1 more source
(2, 2) Scattering and the celestial torus
Journal of High Energy Physics, 2021 Analytic continuation from Minkowski space to (2, 2) split signature spacetime has proven to be a powerful tool for the study of scattering amplitudes. Here we show that, under this continuation, null infinity becomes the product of a null interval with ...
Alexander Atanasov +4 more
doaj +1 more source
Molecular 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
Dynamical versus variational symmetries: understanding Noether's first theorem [PDF]
, 2004 It is argued that awareness of the distinction between dynamical and variational symmetries is crucial to understanding the significance of Noether's 1918 work.
Holland, Peter, Brown, Harvey R.
core
An Anytime Algorithm for Generalized Symmetry Detection in ROBDDs [PDF]
, 2008 Detecting symmetries has many applications in logic synthesis that include, amongst other things, technology mapping, deciding equivalence of Boolean functions when the input correspondence is unknown and finding support-reducing bound sets.
Kettle, Neil +3 more
core +1 more source