Results 11 to 20 of about 66 (66)

The European regions in the global value chains: New results with new data

open access: yesPapers in Regional Science, Volume 102, Issue 6, Page 1097-1126, December 2023., 2023
Abstract This article contains the methodology and main results related to the update and extension of the widest interregional input–output tables for the entire EU27, UK and the European Free Trade Association (EFTA) countries. This work continues the outstanding effort developed in the past years regarding the estimation and analysis of different ...
Miguel Ángel Almazán‐Gómez   +3 more
wiley   +1 more source

Modified rush venom immunotherapy in dogs with Hymenoptera hypersensitivity

open access: yesVeterinary Dermatology, Volume 34, Issue 6, Page 532-542, December 2023., 2023
Background – Hymenoptera envenomation occurs frequently in people and dogs and can trigger anaphylaxis. Venom immunotherapy (VIT) is the only preventative treatment for Hymenoptera hypersensitivity and is indicated for people with severe adverse reactions to insect stings. Rush VIT is an accelerated VIT induction schedule performed in people.
Alexandra Moore   +4 more
wiley   +1 more source

Effect of glycerin on immediate cutaneous reactions of histamine (positive) and phosphate‐buffered saline (negative) controls in intradermal skin testing of healthy dogs: A randomised, blinded study

open access: yesVeterinary Dermatology, Volume 34, Issue 4, Page 348-354, August 2023., 2023
Background – Glycerinated allergen extracts contain 50% glycerin, an excellent preservative. While glycerin is a recognised irritant in humans, the utility of glycerinated extracts for intradermal testing has not been validated in dogs. Hypothesis/Objective – To determine and compare the effects of glycerin on immediate cutaneous reactions to ...
Frane Banovic, Cheryl Vargo, Tara Denley
wiley   +1 more source

Rough semigroups and rough fuzzy semigroups based on fuzzy ideals

open access: yesOpen Mathematics, 2016
In this paper, we firstly introduce a special congruence relation U(μ, t) induced by a fuzzy ideal μ in a semigroup S. Then we define the lower and upper approximations based on a fuzzy ideal in semigroups. We can establish rough semigroups, rough ideals,
Wang Qiumei, Zhan Jianming
doaj   +1 more source

Cartesian composition and the problem of generalizing the MAC condition to quasi-multiautomata

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
When we assume that the input-set of an automaton without output is a semihypergroup instead of a monoid, we talk about quasi-multiautomata. Even though cartesian composition of quasi-automata is a commonly used concept, the cartesian composition of ...
Chvalina Jan   +2 more
doaj   +1 more source

Codes Over Hyperfields

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
In this paper, we define linear codes and cyclic codes over a finite Krasner hyperfield and we characterize these codes by their generator matrices and parity check matrices.
Atamewoue Surdive   +3 more
doaj   +1 more source

Properties of n-ary hypergroups relevant for modelling trajectories in HD maps

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
In the paper we show that trajectories used in HD maps of autonomous vehicles can be well modelled by means of n-ary hyperoperations and hypergroups. We investigate some properties of such hypergroups.
Křehlík Štěpán   +2 more
doaj   +1 more source

The non-commuting graph of a non-central hypergroup

open access: yesOpen Mathematics, 2019
The aim of this paper is to construct and study the properties of a certain graph associated with a non-central hypergroup, i.e. a hypergroup having non-commutative the associated fundamental group.
Iranmanesh Mahdiyeh   +2 more
doaj   +1 more source

Complete parts and subhypergroups in reversible regular hypergroups

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
In this paper we analyse the center and centralizer of an element in the context of reversible regular hypergroups, in order to obtain the class equation in regular reversible hypergroups, by using complete parts.
Leoreanu-Fotea V.   +3 more
doaj   +1 more source

Transitivity of the εm-relation on (m-idempotent) hyperrings

open access: yesOpen Mathematics, 2018
On a general hyperring, there is a fundamental relation, denoted γ*, such that the quotient set is a classical ring. In a previous paper, the authors defined the relation εm on general hyperrings, proving that its transitive closure εm∗$\begin{array}{} \
Norouzi Morteza, Cristea Irina
doaj   +1 more source

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