Results 91 to 100 of about 3,920,331 (369)

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Recording of Alcohol in Official Crash Statistics: Underreporting and Procedures to Improve Statistics

open access: yesJournal of Road Safety, 2018
Worldwide 1.25 million people die in road crashes every year and it is widely recognized that drink driving is an important risk-increasing factor. Official statistics of alcohol-related crashes are likely to underestimate alcohol-related crashes and ...
Luuk Vissers   +2 more
doaj  

Adaptive Image Rendering Using a Nonlinear Mapping-Function-Based Retinex Model

open access: yesSensors, 2019
This paper introduces an adaptive image rendering using a parametric nonlinear mapping-function-based on the retinex model in a low-light source. For this study, only a luminance channel was used to estimate the reflectance component of an observed low ...
JongGeun Oh, Min-Cheol Hong
doaj   +1 more source

Upward and downward statistical continuities [PDF]

open access: yesarXiv, 2013
A real valued function $f$ defined on a subset $E$ of $\textbf{R}$, the set of real numbers, is statistically upward continuous if it preserves statistically upward half quasi-Cauchy sequences, is statistically downward continuous if it preserves statistically downward half quasi-Cauchy sequences; and a subset $E$ of $\textbf{R}$, is statistically ...
arxiv  

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

open access: yesFEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp   +5 more
wiley   +1 more source

Integrated Chemometrics and Statistics to Drive Successful Proteomics Biomarker Discovery

open access: yesProteomes, 2018
Protein biomarkers are of great benefit for clinical research and applications, as they are powerful means for diagnosing, monitoring and treatment prediction of different diseases.
Anouk Suppers   +2 more
doaj   +1 more source

Complex Signal Constellations in Cumulants-Based AMC: Statistics and Performance

open access: yesTelfor Journal, 2021
In this paper various complex signal constellations are considered in the context of Automatic Modulation Classification (AMC) based on a higher-order normalized cumulants value.
M. S. Pajic, M. Veinovic, V. D. Orlic
doaj   +1 more source

Applications of Information Theory: Statistics and Statistical Mechanics [PDF]

open access: yesarXiv, 2016
The method of optimizing entropy is used to (i) conduct Asymptotic Hypothesis Testing and (ii) determine the particle distribution for which Entropy is maximized. This paper focuses on two related applications of Information Theory: Statistics and Statistical Mechanics.
arxiv  

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

open access: yesFEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt   +4 more
wiley   +1 more source

Order statistics on the spacings between order statistics for the uniform distribution [PDF]

open access: yesarXiv, 2019
Closed-form expressions for the distributions of the order statistics on the spacings between order statistics for the uniform distribution are obtained. This generalizes a result by Fisher concerning tests of significance in the harmonic analysis of a series.
arxiv  

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