Results 51 to 60 of about 1,516,048 (285)

Operators with extension property and the principle of local reflexivity [PDF]

open access: yes, 1996
Given an arbitrary $p$-Banach ideal $(0 < p \leq 1)$, we ask for geometrical properties of this ideal which are sufficient (and necessary) to allow a transfer of the principle of local reflexivity to this operator ...
Oertel, Frank
core   +1 more source

Multi-region relaxed magnetohydrodynamics with anisotropy and flow

open access: yes, 2014
We present an extension of the multi-region relaxed magnetohydrodynamics (MRxMHD) equilibrium model that includes pressure anisotropy and general plasma flows.
Dennis, Graham R.   +3 more
core   +1 more source

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

Extension Education: Myth or Reality

open access: yesInternational Journal of Bio-Resource and Stress Management, 2023
Extension Education (popularly known as Agricultural Extension) is a science and art of ‘helping people help themselves’ in shaping their behavior in desirable direction based on the philosophy and principle of ‘learning by doing’ and ‘seeing is ...
Samares Kumar Das, Hema Tripathi
doaj  

Decomposition theorems and extension principle for complex Fuzzy sets [PDF]

open access: yesMathematics and Computational Sciences
Complex fuzzy set was originally proposed as a mathematical tool to deal with uncertainty by taking amplitude term and phase term memberships of an element of a universal set.
Md. Yasin Ali
doaj   +1 more source

Finite-Temperature Gutzwiller Approximation from Time-Dependent Variational Principle

open access: yes, 2015
We develop an extension of the Gutzwiller approximation to finite temperatures based on the Dirac-Frenkel variational principle. Our method does not rely on any entropy inequality, and is substantially more accurate than the approaches proposed in ...
Deng, Xiaoyu   +2 more
core   +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

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 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

MULTIPLICATION OPERATION ON INTUITIONISTIC FUZZY NUMBERS [PDF]

open access: yesAnalele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2018
In this article I will present how to demonstrate, other than using the extension principle, that the product of two trapezoidal intuitionistic fuzzy numbers (TrIFN) can be approximated by a TrIFS.
Iuliana Carmen Bărbăcioru
doaj  

Home - About - Disclaimer - Privacy