Results 61 to 70 of about 3,566,207 (291)

Sharper estimates for the eigenvalues of the Dirichlet fractional Laplacian on planar domains

open access: yesElectronic Journal of Differential Equations, 2018
In this article, we study the eigenvalues of the Dirichlet fractional Laplacian operator $(-\Delta)^{\alpha/2 ...
Selma Yildirim, Turkay Yolcu
doaj  

Hydrogeochemical and isotopic characterization of Pesnica River, Slovenia

open access: yesGeologija, 2016
The surface water geochemistry and carbon cycling studied here depend mainly on geological composition of the river catchment. The investigated surface waters in the river Pesnica catchment that are heavily hydromorphologicaly altered (reservoirs ...
Tjaša Kanduč   +9 more
doaj   +1 more source

Long Range Dependence for Stable Random Processes

open access: yes, 2020
We investigate long and short memory in $\alpha$-stable moving averages and max-stable processes with $\alpha$-Fr\'echet marginal distributions. As these processes are heavy-tailed, we rely on the notion of long range dependence suggested by Kulik and ...
Makogin, Vitalii   +3 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Optimal fractional order PI controller design for time-delayed processes

open access: yesResults in Control and Optimization
The usage of fractional calculus enables additional flexibility and precision regarding the control parameters. This study introduces a fully analytical design for a fractional-order Proportional-Integral (FOPI) controller, eliminating the need for ...
Erdal Cokmez, Ibrahim Kaya
doaj   +1 more source

On extrema of stable processes

open access: yes, 2011
We study the Wiener--Hopf factorization and the distribution of extrema for general stable processes. By connecting the Wiener--Hopf factors with a certain elliptic-like function we are able to obtain many explicit and general results, such as infinite ...
Kuznetsov, Alexey
core   +1 more source

Minimal thinness for subordinate Brownian motion in half space [PDF]

open access: yes, 2011
We study minimal thinness in the half-space $H:=\{x=(\wt{x}, x_d):\, \wt{x}\in \R^{d-1}, x_d>0\}$ for a large class of rotationally invariant L\'evy processes, including symmetric stable processes and sums of Brownian motion and independent stable ...
Kim, Panki   +2 more
core   +3 more sources

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

Effects of litter inputs on soil aggregate C turnover and flow differ among three natural forest ecosystems along a climate gradient in China

open access: yesEcological Processes
Background Plant litter input plays an important role in controlling soil organic carbon (SOC) turnover and the flow of carbon (C) among different pools.
Qinqin Xu   +7 more
doaj   +1 more source

Estimation of the Hurst and the stability indices of a $H$-self-similar stable process

open access: yes, 2017
In this paper we estimate both the Hurst and the stable indices of a H-self-similar stable process. More precisely, let $X$ be a $H$-sssi (self-similar stationary increments) symmetric $\alpha$-stable process. The process $X$ is observed at points $\frac{
Dang, Thi To Nhu, Istas, Jacques
core   +2 more sources

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