Results 81 to 90 of about 5,939,728 (334)

DISCRETE LEAST SQUARES APPROXIMATION OF PIECEWISE-LINEAR FUNCTIONS BY TRIGONOMETRIC POLYNOMIALS

open access: yesПроблемы анализа, 2017
Let N be a natural number greater than 1. Select N uniformly distributed points t_k = 2πk/N (0 ≤ k ≤ N − 1) on [0, 2π]. Denote by L_{n,N} (f) = L_{n,N} (f, x) (1 ≤ n ≤ N/2) the trigonometric polynomial of order n possessing the least quadratic deviation ...
G. G. Akniyev
doaj   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

open access: yesFEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

Approximate power flow solutions‐based forecasting‐aided state estimation for power distribution networks

open access: yesIET Generation, Transmission & Distribution
This paper presents an approximate power flow model‐based forecasting‐aided state estimation estimator for power distribution networks subject to naive forecasting methods and nonlinear filtering processes.
Zhenyu Wang   +4 more
doaj   +1 more source

Metrical Approximations of Functions

open access: yesFunkcialaj Ekvacioj
In this paper, we analyze metrical approximations of functions $F :Λtimes X \rightarrow Y$ by trigonometric polynomials and $ρ$-periodic type functions, where $\emptyset \neq Λ\subseteq {\mathbb R}^{n},$ $X$ and $Y $are complex Banach spaces, and $ρ$ is a general binary relation on $Y .$ Besides the classical concept, we analyze Stepanov,Weyl ...
Chaouchi, Belkacem   +2 more
openaire   +2 more sources

Approximation to Conjugate Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1951
The object of the present note is the establishment of the following theorem: THEOREM 1. If { Tn(x) } is a sequence of trigonometric polynomials of order n, and if (1) f(x) T.(x) = O(n-"a) (a > 0) uniformly in x, then the conjugate function and the conjugate trigonometric polynomials satisfy (2) f(x) T(x) = O(n-a log n) uniformly in x.
openaire   +2 more sources

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Approximation of binomial probability function for a normal probability function

open access: yes, 2014
Educação Superior::Ciências Exatas e da Terra::MatemáticaThe digital animation presents the approximation of the function of the binomial probability for a function of normal probability, also known as Gaussian distribution.
Rojo, Isabel Martín   +3 more
core  

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Kernel-blending connection approximated by a neural network for image classification

open access: yesComputational Visual Media, 2020
This paper proposes a kernel-blending connection approximated by a neural network (KBNN) for image classification. A kernel mapping connection structure, guaranteed by the function approximation theorem, is devised to blend feature extraction and feature
Xinxin Liu   +5 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

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