Results 21 to 30 of about 30,176 (325)

Semantics and Pragmatics of Palindromes in Language and Internet Communication

open access: yesНаучный диалог, 2021
The semantic and pragmatic features of palindromes are considered as an important component of the Russian linguistic picture of the world. The question of establishing the scope and boundaries of the concept of “palindrome” is raised, the specificity of
I. N. Ponomarenko   +2 more
doaj   +1 more source

A complete comparison for the number of palindromes in different bases

open access: yesAIMS Mathematics, 2023
Let $ b $ and $ b_1 $ be distinct positive integers larger than $ 1 $, and let $ A_{b} (n) $ and $ A_{b_1} (n) $ be the number of palindromes in bases $ b $ and $ b_1 $ that are less than or equal to $ n $, respectively.
Phakhinkon Napp Phunphayap   +1 more
doaj   +1 more source

Words with many Palindrome Pair Factors [PDF]

open access: yesElectronic Journal of Combinatorics, 2015
Motivated by a conjecture of Frid, Puzynina, and Zamboni, we investigate infinite words with the property that for infinitely many n, every length-n factor is a product of two palindromes. We show that every Sturmian word has this property, but this does
Adam Borchert, N. Rampersad
semanticscholar   +1 more source

Targeting SARS-CoV-2 Variants with Nucleic Acid Therapeutic Nanoparticle Conjugates

open access: yesPharmaceuticals, 2021
The emergence of SARS-CoV-2 variants is cause for concern, because these may become resistant to current vaccines and antiviral drugs in development. Current drugs target viral proteins, resulting in a critical need for RNA-targeted nanomedicines.
Hanah F. Huber   +8 more
doaj   +1 more source

Palindromic Vectors, Symmetropy and Symmentropy as Symmetry Descriptors of Binary Data

open access: yesEntropy, 2022
Today, the palindromic analysis of biological sequences, based exclusively on the study of “mirror” symmetry properties, is almost unavoidable. However, other types of symmetry, such as those present in friezes, could allow us to analyze binary sequences
Jean-Marc Girault, Sébastien Ménigot
doaj   +1 more source

Palindromic Sequence-Targeted (PST) PCR, Version 2: An Advanced Method for High-Throughput Targeted Gene Characterization and Transposon Display

open access: yesFrontiers in Plant Science, 2021
Genome walking (GW), a strategy for capturing previously unsequenced DNA fragments that are in proximity to a known sequence tag, is currently predominantly based on PCR.
Ruslan Kalendar   +4 more
doaj   +1 more source

DNA Sequences Compression by GP² R and Selective Encryption Using Modified RSA Technique

open access: yesIEEE Access, 2020
Humans, by nature, have always been fascinated by the possibility of being able to acquire more information in minimum possible time and space. The effective lossless compression method, effective data structure, and DNA (Deoxyribonucleic Acid) data ...
Syed Mahamud Hossein   +6 more
doaj   +1 more source

Palindrome complexity

open access: yesTheoretical Computer Science, 2003
We study the palindrome complexity of infinite sequences on finite alphabets, i.e., the number of palindromic factors (blocks) of given length occurring in a given sequence. We survey the known results and obtain new results for some sequences, in particular for Rote sequences and for fixed points of primitive morphisms of constant length belonging to ...
Allouche, Jean-Paul   +3 more
openaire   +4 more sources

Male mice with large inversions or deletions of X-chromosome palindrome arms are fertile and express their associated genes during post-meiosis

open access: yesScientific Reports, 2018
Large (>10 kb) palindromic sequences are enriched on mammalian sex chromosomes. In mice, these palindromes harbor gene families (≥2 gene copies) expressed exclusively in post-meiotic testicular germ cells, a time when most single-copy sex-linked genes ...
Alyssa N. Kruger   +4 more
semanticscholar   +1 more source

Sums of Digits, Overlaps, and Palindromes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2000
Let s_k(n) denote the sum of the digits in the base-k representation of n. In a celebrated paper, Thue showed that the infinite word (s_2(n) \bmod 2)_n≥ 0 is \emphoverlap-free, i.e., contains no subword of the form axaxa where x is any finite word and a ...
Jean-Paul Allouche, Jeffrey Shallit
doaj   +1 more source

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