Results 61 to 70 of about 1,523,478 (287)

A Possible Extension of a Trial State in the TDHF Theory with Canonical Form in the Lipkin Model

open access: yes, 2004
With the aim of the extension of the TDHF theory in the canonical form in the Lipkin model, the trial state for the variation is constructed, which is an extension of the Slater determinant.
Akaike, H., Tsue, Y.
core   +3 more sources

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi   +5 more
wiley   +1 more source

A discrete fixed point theorem of Eilenberg as a particular case of the contraction principle

open access: yesFixed Point Theory and Applications, 2004
We show that a discrete fixed point theorem of Eilenberg is equivalent to the restriction of the contraction principle to the class of non-Archimedean bounded metric spaces.
Jacek Jachymski
doaj   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Role of the Harnack extension principle in the Kurzweil-Stieltjes integral [PDF]

open access: yesMathematica Bohemica
In the theories of integration and of ordinary differential and integral equations, convergence theorems provide one of the most widely used tools. Since the values of the Kurzweil-Stieltjes integrals over various kinds of bounded intervals having the ...
Umi Mahnuna Hanung
doaj   +1 more source

Unique extension of the maximum entropy principle to phase coexistence in heat conduction

open access: yesPhysical Review Research, 2022
The maximum entropy principle determines the values of thermodynamic variables in thermally isolated equilibrium systems. This paper extends the principle to a variational principle that applies to liquid–gas coexistence in heat conduction.
Naoko Nakagawa, Shin-ichi Sasa
doaj   +1 more source

Violation of the Robertson-Schr\"odinger uncertainty principle and non-commutative quantum mechanics

open access: yes, 2012
We show that a possible violation of the Robertson-Schr\"odinger uncertainty principle may signal the existence of a deformation of the Heisenberg-Weyl algebra.
Bastos, Catarina   +3 more
core   +1 more source

A Note on the Extension Principle

open access: yesJournal of Mathematical Analysis and Applications, 2000
Let \(\langle L,\otimes,\to\rangle\) be a complete residuated lattice, i.e., \(L\) is complete, \(\langle L,\otimes\rangle\) is a commutative monoid (with the unit being the top element of \(L\)), and \(\otimes\) and \(\to\) satisfy the property: \(x\leq y\to z\) iff \(x\otimes y\leq z\).
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

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