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Abstract  

For metrically generated constructs X we give an internal characterization of the regular closure operator on X, determined by the subconstruct X 0, consisting of its T 0 objects. This allows us to describe the epimorphisms in X 0 and to show that all the constructs of that type are cowellpowered. We capture many known results but our method also gives solutions in cases where the epimorphism problem was still open.

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The first movement of Haydn’s Op. 33, no. 5 string quartet famously opens with a closing gesture — a move from dominant to tonic chord accompanying a rising tetrachord. This opening puts the entire notion of closure into question and threatens to eviscerate the cadence of its efficacy. Moreover, Haydn ratchets up the tension created by the tetrachord motive’s omnipresence by altering its intervallic structure during the development in order to include an augmented second. What generically would be considered an almost banal cadential gesture becomes an agent of disruption that promises to derail the sense of completion required by tonal musical discourse.By undermining the efficacy of harmonic closure, Haydn seemingly jeopardized the closural function of the recapitulation, which, according to Charles Rosen, relies upon the resolution of large-scale dissonance. However, Haydn demonstrates that the recapitulation is often more than the resolution of large-scale dissonance. In this piece the recapitulation serves as the “resolution” of a motivic process that might have unraveled the coherence of the movement altogether.This paper provides an analysis of the movement with special focus on the process of recapitulation. In this understanding, the recapitulation is not simply a procedural moment of inevitable necessity but rather a stage within what might be referred to as a recapitulatory process that involves the entire piece. This investigation intersects with both Schenkerian insights and the concept of “rotation” within Hepokoski and Darcy’s sonata theory while having important implications with respect to our understanding of the role of the recapitulation.

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beginning of Slamnig’s novel is not an absolute beginning, nor is the closure a complete ending. The protagonist’s drifting without any plan, which is typical for the genre, is taken by Slamnig as a basis so that he can direct our attention to the activity

Open access
Orvosi Hetilap
Authors:
Marius Florin Coros
,
Rares Georgescu
,
Zalán Benedek
,
Sorin Sorlea
,
Ghenadie Pascarenco
,
Cornelia Mesaros
, and
Orsolya Hankó-Bauer

Absztrakt:

Bevezetés és célkitűzés: Tanulmányunk célja volt felmérni a kézi és gépi bélvarratok nyomásrezisztenciáját sertésbélmodellen. Módszer: Különböző típusú kézi és gépi anastomosisokat készítettünk el, az intraluminalis nyomást pedig differenciált nyomású manométerrel mértük. Eredmények: Tapasztalataink szerint nincs szignifikáns különbség a nyomással szembeni ellenállást tekintve, ami a vég a véghez varratokat illeti (p = 0,49). A csonkzáró varratok közül legellenállóbbnak bizonyult a különálló varratsorral történő, két dohányzacskóvarrattal buktatott varrattehnika (p = 0,004). Nem találtunk szignifikáns eltérést a különböző oldal az oldalhoz varratok rezisztenciáját illetően (p = 0,06). Következtetés: Kísérletünk során arra következtettünk, hogy a legellenállóbb varrattípus a kézi csonkzáró varrat, a többi kézi és gépi varrat között nincs jelentős eltérés, ami a nyomással szembeni rezisztenciát illeti. Orv Hetil. 2017; 158(42): 1674–1680.

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Abstract  

Stent placement has become an effective treatment for abrupt or threatened vessel closure in recent years. As a preliminary investigation on the allergy problem towards to Ni and Cr metals from implanted stent, the release of the two elements from stents into isotonic NaCl solution was investigated. Trace amounts of Ni and Cr metals released from stents are successfully determined by neutron activation analysis (NAA). An extreme experimental condition is applied in the NAA procedure to reach a low detection limit of 1 ng Ni. A conclusion is given about the influence on the Ni and Cr release from gold coating, from the expansion, and from the different incubation periods.

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Studia Scientiarum Mathematicarum Hungarica
Authors:
Hiram López
,
Eliseo Sarmiento
,
Maria Pinto
, and
Rafael Villarreal

Let K be a finite field and let X* be an affine algebraic toric set parameterized by monomials. We give an algebraic method, using Gröbner bases, to compute the length and the dimension of C X* (d), the parameterized affine code of degree d on the set X*. If Y is the projective closure of X*, it is shown that C X* (d) has the same basic parameters that C Y (d), the parameterized projective code on the set Y. If X* is an affine torus, we compute the basic parameters of C X* (d). We show how to compute the vanishing ideals of X* and Y.

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Abstract  

Topological sequential spaces are the fixed points of a Galois correspondence between collections of open sets and sequential convergence structures. The same procedure can be followed replacing open sets by other topological concepts, such as closure operators or (ultra)filter convergences. The fixed points of these other Galois correspondences are not topological spaces in general, but they can be embedded into the larger topological classes of pretopological, pseudotopological and convergence spaces. In this paper, we characterize the sequential convergences which are fixed points of these correspondences as well as their restrictions to topological spaces.

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Abstract  

A point p of β, where X is a Tychonoff space, is called a remote point if for any nowhere dense D ⊆, X, p ∉ clβx D. A subset S of X is called round if whenever the closure in βX of a zero-set of X contains S, then it is a neighborhood of S. The purpose of this paper is to study these notions in the pointfree context. In the process, we introduce N-homomorphisms and show how the Stone extension of an N-homomorphism transfers remote points back and forth.

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Abstract

Let R be a discrete valuation ring, p its nonzero prime ideal, PR[X] a monic irreducible polynomial, and K the quotient field of R. We give in this paper a lower bound for the p -adic valuation of the index of P over R in terms of the degrees of the monic irreducible factors of the reduction of P modulo p . By localization, the same result holds true over Dedekind rings. As an important immediate application, when the lower bound is greater than zero, we conclude that no root of P generates a power basis for the integral closure of R in the field extension of K defined by P.

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Let G be a finite group. A subgroup H of G is said to be s-permutable in G if H permutes with all Sylow subgroups of G. Let H be a subgroup of G and let H sG be the subgroup of H generated by all those subgroups of H which are s-permutable in G. A subgroup H of G is called n-embedded in G if G has a normal subgroup T such that H G = HT and HTH sG , where H G is the normal closure of H in G. We investigate the influence of n-embedded subgroups of the p-nilpotency and p-supersolvability of G.

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