Results 71 to 80 of about 29,101,112 (306)

Optimal rate list decoding via derivative codes

open access: yes, 2011
The classical family of $[n,k]_q$ Reed-Solomon codes over a field $\F_q$ consist of the evaluations of polynomials $f \in \F_q[X]$ of degree $< k$ at $n$ distinct field elements. In this work, we consider a closely related family of codes, called (order $
Carol Wang   +3 more
core   +3 more sources

A polymatroid approach to generalized weights of rank metric codes [PDF]

open access: yesDesigns, Codes and Cryptography, 2019
We consider the notion of a (q, m)-polymatroid, due to Shiromoto, and the more general notion of (q, m)-demi-polymatroid, and show how generalized weights can be defined for them. Further, we establish a duality for these weights analogous to Wei duality
S. Ghorpade, T. Johnsen
semanticscholar   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

A Method for Calculating of the Efficiency of Communication Systems with Multiple Modulation Types and Multi-Stage Composite Coding

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники
Analytical relations and a methodology for calculating the performance indicators of communication and multimedia broadcasting systems using multi-position modulation types (QAM-M, FM-M, FM-M, CHMS-M, AM-M, OFM-M) and multi-stage coding based on non ...
E. B. Lipkovich, V. V. Rabtsevich
doaj   +1 more source

Repeated-Root Constacyclic Codes Over the Chain Ring Fpm[u]/⟨u3

open access: yesIEEE Access, 2020
Let Z = Fpm[u]/(u3) be the finite commutative chain ring, where p is a prime, m is a positive integer and Fpm is the finite field with pm elements. In this paper, we determine all repeated-root constacyclic codes of arbitrary lengths over Z and their ...
Tania Sidana, Anuradha Sharma
doaj   +1 more source

Higher-Dimensional Quantum Hypergraph-Product Codes with Finite Rates. [PDF]

open access: yesPhysical Review Letters, 2018
We describe a family of quantum error-correcting codes which generalize both the quantum hypergraph-product codes by Tillich and Zémor and all families of toric codes on m-dimensional hypercubic lattices.
Weilei Zeng, L. Pryadko
semanticscholar   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

On the Performance of Reed-Muller Codes with respect to Random Errors and Erasures [PDF]

open access: yesACM-SIAM Symposium on Discrete Algorithms, 2018
This work proves new results on the ability of binary Reed-Muller codes to decode from random errors and erasures. We obtain these results by proving improved bounds on the weight distribution of Reed-Muller codes of high degrees.
Ori Sberlo, Amir Shpilka
semanticscholar   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Cyclic codes of length 2 m

open access: yesProceedings Mathematical Sciences, 2001
Let \(q\) be an odd prime power, \(\mathbb{F}_q\) the finite field of order \(q\), \(m\) a positive integer, and \(R= \mathbb{F}_q[X]/(X^{2^m}-1)\). The author shows that the following \(m+1\) elements of \(R\) are idempotents, \[ e_0(X):=2^{-m}\sum_{j=0}^{2^m-1}X^j, \qquad e_i(X):=2^{i-m-1}\left(1+\sum_{k=i+1}^m S_k(X)-S_i(X)\right) \] for \(1\leq i ...
openaire   +1 more source

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