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showing 10 items of 1530 documents
Sleep HERMES: a European Core Syllabus in respiratory disorders during sleep.
2011
The clinical characterisation and description of the obstructive sleep apnoea–hypopnoea syndrome (OSAHS) and related syndromes were mainly revealed by several epidemiological studies conducted over the past fifty years. These highly prevalent syndromes affect about 9% of middle-aged men and 4% of women. These syndromes have serious medical and social consequences, such as cardiovascular or metabolic diseases, and even premature death. Consequently, respiratory sleep medicine (RSM) evolved and has progressed rapidly within the sleep medicine field over recent decades. New diagnostic and therapeutic techniques have appeared in response to an increasing number of patients and clinical interven…
Virtual and arrow Temperley–Lieb algebras, Markov traces, and virtual link invariants
2021
Let [Formula: see text] be the algebra of Laurent polynomials in the variable [Formula: see text] and let [Formula: see text] be the algebra of Laurent polynomials in the variable [Formula: see text] and standard polynomials in the variables [Formula: see text] For [Formula: see text] we denote by [Formula: see text] the virtual braid group on [Formula: see text] strands. We define two towers of algebras [Formula: see text] and [Formula: see text] in terms of diagrams. For each [Formula: see text] we determine presentations for both, [Formula: see text] and [Formula: see text]. We determine sequences of homomorphisms [Formula: see text] and [Formula: see text], we determine Markov traces […
Lectures on Artin Groups and the $$K(\pi ,1)$$ Conjecture
2014
This paper consists of the notes of a mini-course (3 lectures) on Artin groups that focuses on a central question of the subject, the \(K(\pi ,1)\) conjecture.
Formations of Monoids, Congruences, and Formal Languages
2015
The main goal in this paper is to use a dual equivalence in automata theory started in [25] and developed in [3] to prove a general version of the Eilenberg-type theorem presented in [4]. Our principal results confirm the existence of a bijective correspondence between three concepts; formations of monoids, formations of languages and formations of congruences. The result does not require finiteness on monoids, nor regularity on languages nor finite index conditions on congruences. We relate our work to other results in the field and we include applications to non-r-disjunctive languages, Reiterman s equational description of pseudovarieties and varieties of monoids.
ON GENERALISED PRONORMAL SUBGROUPS OF FINITE GROUPS
2014
AbstractFor a formation $\mathfrak F$, a subgroup M of a finite group G is said to be $\mathfrak F$-pronormal in G if for each g ∈ G, there exists x ∈ 〈U,Ug〉$\mathfrak F$ such that Ux = Ug. Let f be a subgroup embedding functor such that f(G) contains the set of normal subgroups of G and is contained in the set of Sylow-permutable subgroups of G for every finite group G. Given such an f, let fT denote the class of finite groups in which f(G) is the set of subnormal subgroups of G; this is the class of all finite groups G in which to be in f(G) is a transitive relation in G. A subgroup M of a finite group G is said to be $\mathfrak F$-normal in G if G/CoreG(M) belongs to $\mathfrak F$. A sub…
Ruina y recuperación del patrimonio artístico español: el legado valenciano
2002
El patrimonio artístico valenciano ha venido sufriendo en las dos últimas centurias (siglos XIX y XX) una considerable pérdida, debido a desamortizaciones, guerras, derribos incontrolados, ventas fraudulentas y expolios. Es la arquitectura monumental la mayormente afectada por esta lacra; así como la desaparición en Valencia de palacios nobles y casas solariegas derribadas, en muchas ocasiones por una equivocada expansión urbanística y la especulación del suelo. Las páginas precedentes son ejemplo de esa desidia y abandono, muchas veces permisivos, y buena muestra de lo que nunca debió ocurrir en tierras valencianas.
Pārrobežu parādu piedziņa civillietās un komerclietās - Eiropas līmeņa izpildu dokumentu izpildāmības nosacījumi, problemātika un aktualitātes zvērin…
2017
Maģistra darba mērķis ir apzināt un apkopot Eiropas līmeņa izpildu dokumentu un to izpildes procesu būtību pārrobežu piedziņas lietās, pētot gan tiesībzinātnieku atziņas, gan pieejamo Eiropas Savienības tiesas un Latvijas Republikas tiesu judikatūru. Maģistra darbā galvenokārt pievērsta uzmanība Eiropas Savienības dalībvalsts tiesas nolēmuma izpildes procesam, efektivitātei un problemātikai, veicot secinājumus un izvirzot priekšlikumus faktiskās un tiesiskās situācijas uzlabošanai. Maģistra darba mērķa sasniegšanai autore izvirzījusi uzdevumus, kuru sasniegšanai nepieciešama padziļināta Eiropas Savienības līmeņa izpildu dokumentu, civillietu un komerclietu jēdzienu izpēte, kā arī veicama vi…
Participants' perceptions of an intervention implemented in an Action Research Nursing Documentation Project.
2017
Aims and objectives The aim of this study is to describe healthcare professionals’ experiences and perceptions of an intervention implemented in an action research project conducted to improve nursing documentation practices in four municipalities in Norway. Background Documentation of individualized patient care is a continuing concern in healthcare services and could impacts the quality and safety of healthcare. Use of electronic systems has made some aspects of documentation more comprehensive, but creation of an individualized care plan remains a pressing issue. Design A qualitative descriptive design was used. Methods An action research project was conducted between 2010–2012 to improv…
Direct measurement of the mass difference between top and antitop quarks
2009
We present a direct measurement of the mass difference between top and antitop quarks (dm) in lepton+jets top-antitop final states using the "matrix element" method. The purity of the lepton+jets sample is enhanced for top-antitop events by identifying at least one of the jet as originating from a b quark. The analyzed data correspond to 3.6 fb-1 of proton-antiproton collisions at 1.96 TeV acquired by D0 in Run II of the Fermilab Tevatron Collider. The combination of the e+jets and mu+jets channels yields dm = 0.8 +/- 1.8 (stat) +/- 0.5 (syst) GeV, which is in agreement with the standard model expectation of no mass difference.
b-Jet identification in the D0 experiment
2010
Algorithms distinguishing jets originating from b quarks from other jet flavors are important tools in the physics program of the D0 experiment at the Fermilab Tevatron p-pbar collider. This article describes the methods that have been used to identify b-quark jets, exploiting in particular the long lifetimes of b-flavored hadrons, and the calibration of the performance of these algorithms based on collider data.