Results 81 to 90 of about 1,155,625 (282)

Iterated deterministic substitution

open access: yesActa Informatica, 1977
Deterministic substitution of languages means substituting the same word (from a given language) for all occurrences of a symbol. For an arbitrary family $K$ of languages the notion of deterministic $K$-iteration grammar is introduced, which is essentially the iteration of a finite number of deterministic substitutions of languages from $K$.
Asveld, Peter R.J., Engelfriet, Joost
openaire   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

The number system in rational base $3/2$ and the $3x+1$ problem

open access: yesComptes Rendus. Mathématique
The representation of numbers in rational base $p/q$ was introduced in 2008 by Akiyama, Frougny & Sakarovitch, with a special focus on the case $p/q=3/2$.
Eliahou, Shalom   +1 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Approximate Common Solutions for a Family of Inverse Strongly Monotone Mappings

open access: yesAxioms
In 2003 W. Takahashi and M. Toyoda showed the weak convergence of an iteration process of finding the solution of a variational inequality problem for an inverse strongly monotone mapping.
Alexander J. Zaslavski
doaj   +1 more source

Intuition, iteration, induction

open access: yes, 2015
In Mathematical Thought and Its Objects, Charles Parsons argues that our knowledge of the iterability of functions on the natural numbers and of the validity of complete induction is not intuitive knowledge; Brouwer disagrees on both counts.
van Atten, Mark
core  

ITERATING SYMMETRIC EXTENSIONS [PDF]

open access: yesThe Journal of Symbolic Logic, 2019
AbstractThe notion of a symmetric extension extends the usual notion of forcing by identifying a particular class of names which forms an intermediate model of $ZF$ between the ground model and the generic extension, and often the axiom of choice fails in these models. Symmetric extensions are generally used to prove choiceless consistency results.
openaire   +4 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

LINGUISTIC DEVICES OF DEVELOPING TEXT FORMAL INTEGRITY

open access: yesNovìtnâ Osvìta, 2015
The article provides the profound insight into the principles and means of achieving the formal text integrity. The fundamental directions of the text study have been suggested.
H. O. Matkovska
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

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