Results 31 to 40 of about 18,647 (309)
Advances in Applied Mathematics, 2016 We introduce a variant of de Bruijn words that we call perfect necklaces. Fix a finite alphabet. Recall that a word is a finite sequence of symbols in the alphabet and a circular word, or necklace, is the equivalence class of a word under rotations. For positive integers k and n, we call a necklace (k,n)-perfect if each word of length k occurs exactly ...
Nicolás Alvarez +3 more
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The acquisition of spanish perfective aspect : A study on children's production and comprehension [PDF]
, 2013 This paper presents the acquisition of Spanish perfective aspect in production and comprehension. It argues that, although young children use perfective aspect to talk about completed events, young children have difficulty in assessing perfective meaning
Hodgson, Miren
core
Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies
FEBS Open Bio, EarlyView.We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli +8 more
wiley +1 more source
L2 Comprehension of the Arabic Perfective: Semantically - or Morphologically-driven?
ПсихолінгвістикаPurpose. No research to date has investigated the effect of lexical aspect and/or the morphological structures of verbs on the comprehension of Arabic perfective markings by learners of Arabic as a second language (ASL).
Ахмед Алмакроб
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On the early development of aspect in greek and russian child language, a comparative analysis [PDF]
, 2013 The category of aspect is grammaticized in both Greek and Russian opposing perfective and imperfective verb forms in all inflectional categories except the nonpast (‘present’).
Stephany, Ursula, Voeikova, Maria
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FEBS Open Bio, EarlyView.Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman +4 more
wiley +1 more source
Journal of Language and EducationBackground. The problem of verb aspectual pairs in Russian studies remains relevant and still causes discussion, despite the large number of studies conducted.
Valery Solovyev, Anna Ivleva
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When (im)perfective is perfect (and when it is not)
Catalan Journal of Linguistics, 2018 The goal of this paper is to discuss some meaning correspondences (and/or clashes) between the perfective/imperfective aspectual contrast in Russian and various interpretations of a perfect in English.
Olga Borik
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Transactions of the American Mathematical Society, 1981 Let p be a nonzero positive perfect measure on a a-algebra of subsets of a set X. It is proved that if (Ai: i I) is a partition of X with *(Ai) = 0 for all i I and the Cardinal of I non-(Ulam-) measurable, then there is J Ì I such that UiAiis not -measurable, generalizing a theorem of Solovay about the Lebesgue measure.
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YIPFα1A expression is regulated by multilayered molecular mechanisms
FEBS Open Bio, EarlyView.YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji +2 more
wiley +1 more source