Results 11 to 20 of about 3,206 (154)

Potato virus X: A global potato-infecting virus and type member of the Potexvirus genus. [PDF]

open access: yesMol Plant Pathol, 2022
Potato virus X, one of the oldest known and well‐studied plant viruses, has contributed much to our current knowledge of plant immunity in potato and tobacco, and is a versatile vector for expressing foreign genes in plants. Abstract Taxonomy Potato virus X is the type‐member of the plant‐infecting Potexvirus genus in the family Alphaflexiviridae ...
Verchot J.
europepmc   +2 more sources

Polyphosphate: The "Dark Matter" of Bacterial Chromatin Structure. [PDF]

open access: yesMol Microbiol
Polyphosphate condensates and their contributions to nucleoid structure. Polyphosphate condensates form in the ribosome‐depleted nucleoid region of bacterial cells, particularly under stress (in this case Pseudomonas aeruginosa undergoing nitrogen starvation; adapted with permission from (Racki et al. 2017)). This Perspective explores the emerging view
Racki LR, Freddolino L.
europepmc   +2 more sources

Roadmap on Label‐Free Super‐Resolution Imaging

open access: yesLaser &Photonics Reviews, Volume 17, Issue 12, December 2023., 2023
This Roadmap presents a comprehensive vision of developments in the field of nanoscale imaging of non‐fluorescent objects with a focus on methods allowing to overcome the classical diffraction limit. The scope of this Roadmap spans from diffraction‐limited interference detection techniques to super‐resolution methods based on information science ...
Vasily N. Astratov   +53 more
wiley   +1 more source

Applying core lexicon analysis in patients with anomic aphasia: Based on Mandarin AphasiaBank

open access: yesInternational Journal of Language &Communication Disorders, Volume 58, Issue 6, Page 1875-1886, November/December 2023., 2023
Abstract Background Patients with anomic aphasia experience difficulties in narrative processing. General discourse measures are time consuming and require necessary skills. Core lexicon analysis has been proposed as an effort‐saving approach but has not been developed in Mandarin discourse.
Yu‐Er Jiang, Xiao‐Yu Liao, Na Liu
wiley   +1 more source

Linnik’s problem in fiber bundles over quadratic homogeneous varieties

open access: yesMonatshefte für Mathematik, 2023
We compute the statistics of $SL_{d}(\mathbb{Z})$ matrices lying on level sets of an integral polynomial defined on $SL_{d}(\mathbb{R})$, a result that is a variant of the well known theorem proved by Linnik about the equidistribution of radially projected integral vectors from a large sphere into the unit sphere.
Bersudsky, Michael, Shapira, Uri
openaire   +2 more sources

On the distribution of modular inverses from short intervals

open access: yesMathematika, Volume 69, Issue 4, Page 1183-1194, October 2023., 2023
Abstract For a prime number p and integer x with gcd(x,p)=1$\gcd (x,p)=1$, let x¯$\overline{x}$ denote the multiplicative inverse of x modulo p. In this paper, we are interested in the problem of distribution modulo p of the sequence x¯,x=1,…,N,$$\begin{equation*} \overline{x}, \qquad x =1, \ldots , N, \end{equation*}$$and in lower bound estimates for ...
Moubariz Z. Garaev, Igor E. Shparlinski
wiley   +1 more source

Posterior consistency for the spectral density of non‐Gaussian stationary time series

open access: yesScandinavian Journal of Statistics, Volume 50, Issue 3, Page 1152-1182, September 2023., 2023
Abstract Various nonparametric approaches for Bayesian spectral density estimation of stationary time series have been suggested in the literature, mostly based on the Whittle likelihood approximation. A generalization of this approximation involving a nonparametric correction of a parametric likelihood has been proposed in the literature with a proof ...
Yifu Tang   +3 more
wiley   +1 more source

Multiplicative functions in short arithmetic progressions

open access: yesProceedings of the London Mathematical Society, Volume 127, Issue 2, Page 366-446, August 2023., 2023
Abstract We study for bounded multiplicative functions f$f$ sums of the form ∑n⩽xn≡a(modq)f(n),$$\begin{align*} \hspace*{7pc}\sum _{\substack{n\leqslant x\\ n\equiv a\ (\mathrm{mod}\ q)}}f(n), \end{align*}$$establishing that their variance over residue classes a(modq)$a \ (\mathrm{mod}\ q)$ is small as soon as q=o(x)$q=o(x)$, for almost all moduli q$q$,
Oleksiy Klurman   +2 more
wiley   +1 more source

Beltrami fields and knotted vortex structures in incompressible fluid flows

open access: yesBulletin of the London Mathematical Society, Volume 55, Issue 3, Page 1059-1103, June 2023., 2023
Abstract This paper gives a survey on recent results about the existence of knotted vortex structures in incompressible fluids. This includes the proof of Lord Kelvin's conjecture on the existence of knotted vortex tubes in steady Euler flows and a new probabilistic approach to address Arnold's speculation that typical Beltrami fields should exhibit ...
Alberto Enciso, Daniel Peralta‐Salas
wiley   +1 more source

The fractional Fisher information and the central limit theorem for stable laws [PDF]

open access: yes, 2015
A new information-theoretic approach to the central limit theorem for stable laws is presented. The main novelty is the concept of relative fractional Fisher information, which shares most of the properties of the classical one, included Blachman-Stam ...
Toscani, Giuseppe
core   +1 more source

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