Results 51 to 60 of about 148,619 (245)

Nth power of secant and tangent product approximation of L-R fuzzy numbers

open access: yesAin Shams Engineering Journal
In this article, we find a general form for the nth power and the inverse nth power for secant approximation L-R fuzzy number. Meanwhile the nth power tangent approximation was found in the literature. In this paper, we find the inverse nth power tangent
Eman Abuteen
doaj   +1 more source

Uniformly Approximable Numbers and the Uniform Approximation Spectrum

open access: yesJournal of Number Theory, 1996
Given an irrational number \(\alpha\), the uniform approximation constant \(\nu (\alpha)\) is defined as \[ \nu (\alpha)= \lim\sup_{Q\to \infty} \biggl((Q+1)^2 \min_{1\leq q\leq Q} \bigl\{|\alpha q |/q \bigr\} \biggr), \] where \(|\cdot|\) denotes the distance to the nearest integer.
openaire   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

NONLINEAR FILTRATION LAWS OF ONE-COMPONENT FLUIDS AT HIGH FLOW RATES

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2015
It is emphasized that well-known Darcy and Forchheimer laws of filtration are applicable for modes with low Reynolds numbers. For modes with a wide range of Reynolds numbers it is necessary to apply the Barry-Conway law of filtration.
V. A. Tolpaev   +2 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Probing the holographic dilaton

open access: yesJournal of High Energy Physics, 2020
Many strongly coupled field theories admit a spectrum of gauge-invariant bound states that includes scalar particles with the same quantum numbers as the vacuum. The challenge naturally arises of how to characterise them. In particular, how can a dilaton
Daniel Elander   +2 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Deriving Fuzzy Inequalities Using Discrete Approximation of Fuzzy Numbers

open access: yesInternational Journal of Industrial Engineering and Production Research, 2013
Most of the researches in the domain of fuzzy number comparisons serve the fuzzy number ordering purpose. For making a comparison between two fuzzy numbers, beyond the determination of their order, it is needed to derive the magnitude of their order.
Navid Khademi   +3 more
doaj  

The Developmental Onset of Symbolic Approximation: Beyond Nonsymbolic Representations, The Language of Numbers Matters

open access: yesFrontiers in Psychology, 2015
Symbolic (i.e., with Arabic numerals) approximate arithmetic with large numerosities is an important predictor of mathematics. It was previously evidenced to onset before formal schooling at the kindergarten age (Gilmore et al., 2007) and was assumed to ...
Iro eXenidou-Dervou   +3 more
doaj   +1 more source

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