Results 81 to 90 of about 106,270 (318)

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

A Bivariate Extension of the $U$ Statistic

open access: yesThe Annals of Mathematical Statistics, 1951
Let $x, y$, and $z$ be three random variables with continuous cumulative distribution functions $f, g$, and $h$. In order to test the hypothesis $f = g = h$ under certain alternatives two statistics $U, V$ based on ranks are proposed. Recurrence relations are given for determining the probability of a given $(U, V)$ in a sample of $l x$'s, $m y$'s, $n ...
openaire   +2 more sources

Targeting EZH2 reverses thyroid cell dedifferentiation and enhances iodide uptake in anaplastic thyroid cancer

open access: yesFEBS Letters, EarlyView.
Anaplastic thyroid cancer (ATC) lacks iodide uptake ability due to MAPK activation increasing the expression of the histone methyltransferase EZH2, which represses thyroid differentiation genes (TDGs) such as the sodium iodide symporter (NIS). Dual inhibition of MAPK (U0126) and EZH2 (EPZ6438/Tazemetostat) reverses this mechanism, thus restoring TDG ...
Diego Claro de Mello   +6 more
wiley   +1 more source

A U-Statistic for Testing the Lack of Dependence in Functional Partially Linear Regression Model

open access: yesMathematics
The functional partially linear regression model comprises a functional linear part and a non-parametric part. Testing the linear relationship between the response and the functional predictor is of fundamental importance.
Fanrong Zhao, Baoxue Zhang
doaj   +1 more source

Produce certification and income risk management strategies of cocoa farming households in South-West Nigeria

open access: yesApstract: Applied Studies in Agribusiness and Commerce, 2015
Agricultural produce certification is synonymous to farm assurance of which cocoa certification is an example; dealing with issues of Good Agricultural, Environmental and Social Practices (GAP, GEP and GSP) in cocoa production.
A. B. Oreyemi   +4 more
doaj   +1 more source

Turbulent characteristics of saltation and uncertainty of saltation model parameters [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
It is widely recognised that saltation is a turbulent process, similar to other transport processes in the atmospheric boundary layer. Due to a lack of high-frequency observations, the statistic behaviour of saltation is so far not well understood. In
D. Liu, M. Ishizuka, M. Mikami, Y. Shao
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Interpreting Kendall’s Tau and Tau-U for single-case experimental designs

open access: yesCogent Psychology, 2018
Tau (τ), a nonparametric rank order correlation statistic, has been applied to single-case experimental designs with promising results. Tau-U, a family of related coefficients, partitions variance associated with changes in trend and level.
Daniel F. Brossart   +2 more
doaj   +1 more source

LDP for inhomogeneous U-statistics

open access: yesThe Annals of Applied Probability
41 ...
Bhattacharya, Sohom   +2 more
openaire   +3 more sources

Ranking and Empirical Minimization of U-statistics

open access: yesThe Annals of Statistics, 2008
The problem of ranking/ordering instances, instead of simply classifying them, has recently gained much attention in machine learning. In this paper we formulate the ranking problem in a rigorous statistical framework. The goal is to learn a ranking rule for deciding, among two instances, which one is "better," with minimum ranking risk.
Clémençon, Stéphan   +2 more
openaire   +3 more sources

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