Results 61 to 70 of about 60,182 (167)

Impact of pH on the Stability and the Cross-Reactivity of Ochratoxin A and Citrinin

open access: yesToxins, 2013
Mycotoxins are secondary metabolites produced by several fungi contaminating crops. In several countries, the maximum permitted levels of mycotoxins are found in foodstuffs and feedstuffs.
Ingrid Bazin   +5 more
doaj   +1 more source

Weakly $r$-clean rings and weakly $\star$-clean rings

open access: yes, 2017
14 ...
Sharma, Ajay, Basnet, Dhiren Kumar
openaire   +2 more sources

Clean rings of skew Hurwitz series

open access: yesLe Matematiche, 2007
In this paper we study the transfer of some algebraic properties from the ring R to the ring of skew Hurwitz series T = (H R, σ ) where σ  is an automorphism of R and vice versa.
A. M. Hassanein
doaj  

BrailleRing: a flexible Braille display

open access: yesCurrent Directions in Biomedical Engineering, 2020
The “BrailleRing” is a refreshable Braille display that allows blind people to read tactile characters on the inside of a rotating ring. Dots are not displayed by moving pins, but by fixed patterns on rotating cuboids.
Treml Michael   +4 more
doaj   +1 more source

r-clean rings

open access: yes, 2011
An element of a ring R is called clean if it is the sum of an idempotent and a unit. A ring R is called clean if each of its element is clean. An element r \in R called regular if r = ryr for some y \in R. The ring R is regular if each of its element is regular.
Ashrafi, Nahid, Nasibi, Ebrahim
openaire   +2 more sources

Rings in Which Every Element Is a Sum of a Nilpotent and Three 7-Potents

open access: yesInternational Journal of Mathematics and Mathematical Sciences
In this article, we define and discuss strongly S3,7 nil-clean rings: every element in a ring is the sum of a nilpotent and three 7-potents that commute with each other.
Yanyuan Wang, Xinsong Yang
doaj   +1 more source

Strongly clean matrix rings over local rings

open access: yesJournal of Algebra, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Generalizing Semi-n-Potent Rings

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
The present article deals with the problem of characterizing a widely large class of associative and possibly non-commutative rings. So, we define and explore the class of rings R for which each element in R is a sum of a tripotent element from R and an
A. Javan, A. Moussavi, P. Danchev
doaj   +1 more source

Lifting units in clean rings

open access: yesJournal of Algebra, 2013
Clean rings are those in which every element is a sum of a unit plus an idempotent; they form a proper subclass of the class of exchange rings. The focus of this paper is on the property of lifting units modulo an ideal \(I\) of a clean ring \(R\), and on the related property of surjectivity of the natural map \(K_1(R)\to K_1(R/I)\). It is first proved
openaire   +1 more source

Automated tree ring detection of common Indiana hardwood species through deep learning: Introducing a new dataset of annotated images

open access: yesInformation Processing in Agriculture
Tree-ring dating enables gathering necessary knowledge about trees, and it is essential in many areas, including forest management and the timber industry.
Fanyou Wu   +4 more
doaj   +1 more source

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