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PRECEPT-OHCA: prehospital evaluation of confidence and practice in the treatment of out-of-hospital cardiac arrest across Australia, the United Kingdom, and New Zealand: a cross-sectional study protocol [PDF]

open access: yesResuscitation Plus
Background: Out-of-hospital cardiac arrest (OHCA) has poor survival. Resuscitation guidelines recommend consideration of reversible causes, commonly termed the “4 Hs and 4 Ts”, but prehospital constraints may limit clinicians’ ability to identify or ...
Salman Naeem   +11 more
doaj   +2 more sources

Factors influencing preference for short-term over long-term contraceptives among women in northern Uganda. A mixed-methods study [PDF]

open access: yesBMC Women's Health
Introduction Modern contraceptives have contributed to reduction of unintended pregnancy among the women of reproductive age (15 to 49) globally. Use of long-term reversible contraceptives is low (13%) in Uganda yet they are cost-effective.
Betty Apio   +8 more
doaj   +2 more sources

Construction of reversible cyclic codes over 𝔽q + u𝔽q + u2𝔽q

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
Let q be a power of prime p. In this article, we investigate the reversible cyclic codes of arbitrary length n over the ring R = 𝔽q +u𝔽q + u2𝔽q, where u3 = 0 mod q.
Rehman Nadeem ur   +2 more
doaj   +1 more source

New DNA Codes from Cyclic Codes over Mixed Alphabets

open access: yesMathematics, 2020
Let R=F4+uF4,withu2=u and S=F4+uF4+vF4,withu2=u,v2=v,uv=vu=0. In this paper, we study F4RS-cyclic codes of block length (α,β,γ) and construct cyclic DNA codes from them. F4RS-cyclic codes can be viewed as S[x]-submodules of Fq[x]〈xα−1〉×R[x]〈xβ−1〉×S[x]〈xγ−
Hai Q. Dinh   +3 more
doaj   +1 more source

On Reversibility and Self-Duality for Some Classes of Quasi-Cyclic Codes

open access: yesIEEE Access, 2020
In this work, we study two classes of quasi-cyclic (QC) codes and examine how several properties can be combined into the codes of these classes. We start with the class of QC codes generated by diagonal generator polynomial matrices; a QC code in this ...
Ramy Taki Eldin, Hajime Matsui
doaj   +1 more source

DNA Code from Cyclic and Skew Cyclic Codes over F4[v]/〈v3〉

open access: yesEntropy, 2023
The main motivation of this work is to study and obtain some reversible and DNA codes of length n with better parameters. Here, we first investigate the structure of cyclic and skew cyclic codes over the chain ring R:=F4[v]/⟨v3⟩.
Om Prakash   +4 more
doaj   +1 more source

Self dual, reversible and complementary duals constacyclic codes over finite local Frobenius non-chain rings of length 5 and nilpotency index 4.

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
Over finite local Frobenius non-chain rings of length 5 and nilpotency index 4 and when the length of the code is relatively prime to the characteristic of the residue field of the ring, the structure of the dual of γ-constacyclic codes is established ...
Castillo-Guillén C. A.   +1 more
doaj   +1 more source

DNA codes over finite local Frobenius non-chain rings of length 5 and nilpotency index 4

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
A one to one correspondence between the elements of a finite local Frobenius non-chain ring of length 5 and nilpotency index 4, and k-tuples of DNA codewords is established.
Castillo-Guillén C. A.   +1 more
doaj   +1 more source

Improving data embedding capacity into Base45 encoded strings

open access: yesEngineering Reports, 2023
In the context of data hiding reversible embedding of information into printable string encoded data may provide a solution to store extra bits for various applications.
Marco Botta, Davide Cavagnino
doaj   +1 more source

Quasi-Cyclic Codes Via Unfolded Cyclic Codes and Their Reversibility

open access: yesIEEE Access, 2019
The finite field $\mathbb {F}_{q^\ell }$ of $q^\ell $ elements contains $\mathbb {F}_{q}$ as a subfield. If $\theta \in \mathbb {F}_{q^\ell }$ is of degree $\ell $ over $\mathbb {F}_{q}$ , it can be used to unfold elements of $\mathbb {F}_{q^\
Ramy Taki Eldin, Hajime Matsui
doaj   +1 more source

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