Results 11 to 20 of about 20,244,257 (338)

Potassium transporter KUP9 participates in K+ distribution in roots and leaves under low K+ stress [PDF]

open access: yesStress Biology, 2022
Potassium (K) is a major essential element in plant cells, and KUP/HAK/KT-type K+ transporters participate in the absorption of K+ into roots and in the long-distance transport to above-ground parts.
Taro Yamanashi   +8 more
doaj   +2 more sources

On the k-gamma q-distribution

open access: yesOpen Mathematics, 2010
Abstract We provide combinatorial as well as probabilistic interpretations for the q-analogue of the Pochhammer k-symbol introduced by Díaz and Teruel. We introduce q-analogues of the Mellin transform in order to study the q-analogue of the k-gamma distribution.
Díaz Rafael   +2 more
doaj   +3 more sources

A method for estimating the parameters of the K distribution

open access: yesIEEE Transactions on Signal Processing, 1999
A method that combines the maximum likelihood and the method of moments for estimating the parameters of the K distribution is proposed. The method results in the lowest variance of parameter estimates when compared with existing non-ML techniques.
Iskander, D. Robert   +2 more
openaire   +4 more sources

Xylem K+ loading modulates K+ and Cs+ absorption and distribution in Arabidopsis under K+-limited conditions

open access: yesFrontiers in Plant Science, 2023
Potassium (K+) is an essential macronutrient for plant growth. The transcriptional regulation of K+ transporter genes is one of the key mechanisms by which plants respond to K+ deficiency. Among the HAK/KUP/KT transporter family, HAK5, a high-affinity K+
Satomi Kanno   +11 more
doaj   +2 more sources

The distribution of $k$-free numbers [PDF]

open access: yesMathematics of Computation, 2020
Let $R_k(x)$ denote the error incurred by approximating the number of $k$-free integers less than $x$ by $x/ζ(k)$. It is well known that $R_k(x)=Ω(x^{\frac{1}{2k}})$, and widely conjectured that $R_k(x)=O(x^{\frac{1}{2k}+ε})$. By establishing weak linear independence of some subsets of zeros of the Riemann zeta function, we establish an effective proof
Michael J. Mossinghoff   +2 more
openaire   +2 more sources

A Tool for Generating Fast k‐Distribution Gas‐Optics Models for Weather and Climate Applications

open access: yesJournal of Advances in Modeling Earth Systems, 2022
One of the most important components of an atmospheric radiation scheme is its treatment of gas optical properties, which determines not only the accuracy of its radiative forcing calculations fundamental to climate prediction, but also its computational
R. Hogan, M. Matricardi
semanticscholar   +1 more source

Distributed k-core decomposition [PDF]

open access: yesProceedings of the 30th annual ACM SIGACT-SIGOPS symposium on Principles of distributed computing, 2011
Among the novel metrics used to study the relative importance of nodes in complex networks, k-core decomposition has found a number of applications in areas as diverse as sociology, proteinomics, graph visualization, and distributed system analysis and design.
Montresor, Alberto   +2 more
openaire   +3 more sources

Distribution‐preserving k‐anonymity [PDF]

open access: yesStatistical Analysis and Data Mining: The ASA Data Science Journal, 2018
Preserving the privacy of individuals by protecting their sensitive attributes is an important consideration during microdata release. However, it is equally important to preserve the quality or utility of the data for at least some targeted workloads. We propose a novel framework for privacy preservation based on the k‐anonymity model that is ideally ...
Dennis Wei   +2 more
openaire   +3 more sources

Minimum K-S estimator using PH-transform technique [PDF]

open access: yesSuan Sunandha Rajabhat University Journal of Science and Technology, 2016
In this paper, we propose an improvement of the Minimum Kolmogorov-Smirnov (K-S) estimator using proportional hazards transform (PH-transform) technique. The data of experiment is 47 fire accidents data of an insurance company in Thailand.
Somchit Boonthiem   +3 more
doaj   +1 more source

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