Results 121 to 130 of about 4,345 (299)

Aperture methods of the redundancy reduction of the measuring information in telemetry systems

open access: yesMoldavian Journal of the Physical Sciences, 2009
The classification of the methods of measuring information redundancy reduction in the telemetry systems and its comparative analysis are performed.
Vladov, Mihail, Canţer, Valeriu
doaj  

A New Spectral Mittag-Leffler Weighted Method to Solve Variable Order Fractional Differential Equations

open access: yesAl-Mustansiriyah Journal of Science
Background: In many studies, spectral methods based on one of the orthogonal polynomials and weighted residual methods (WRMs) have been used to convert the variable-order fractional differential equation (VO-FDEs) into a system of linear or nonlinear ...
Abdulrazzaq T. Abed   +1 more
doaj   +1 more source

Ecological examples of nonstationarity, nonlinearity and statistical interactions in dynamic structural equation models

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Ecologists are adapting structural causal modelling for spatial, phylogenetic and time‐series analysis. However, ecological extensions of path analysis and structural equation models (SEM) typically assume that interactions among variables are stationary, linear and additive, while ecological and evolutionary dynamics are often nonstationary ...
James T. Thorson, Kasper Kristensen
wiley   +1 more source

Log-Likelihood Ratio Calculation for Iterative Decoding on Rayleigh Fading Channels Using Padé Approximation

open access: yesJournal of Applied Mathematics, 2013
Approximate calculation of channel log-likelihood ratio (LLR) for wireless channels using Padé approximation is presented. LLR is used as an input of iterative decoding for powerful error-correcting codes such as low-density parity-check (LDPC) codes or ...
Gou Hosoya, Hiroyuki Yashima
doaj   +1 more source

Association of fully branded, standardized packaging and limited flavor and brand descriptors of e‐liquids with interest in trying products among youths in Great Britain

open access: yesAddiction, Volume 120, Issue 4, Page 620-628, April 2025.
Abstract Background and aims Many vaping products feature bright colors and novel brand names and flavor descriptors, which may appeal to youth. We measured the strength of the associations between e‐liquid packaging design (branded, white standardized or white standardized limiting brand and flavor descriptors) and perceived peer interest in trying ...
Eve Taylor   +10 more
wiley   +1 more source

Calculating the relative biological effectiveness of carbon ion radiotherapy by common models using measurable microdosimetric inputs

open access: yes
Precision Radiation Oncology, EarlyView.
Shannon Hartzell   +6 more
wiley   +1 more source

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

open access: yesArchaeometry, EarlyView.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay   +3 more
wiley   +1 more source

Application of Variation Theory in Teaching and Learning of Taylor Polynomials with GeoGebra

open access: yes, 2012
We report on a teaching experiment regarding Taylor polynomial approximations at the level of university mathematics teaching. The experiment was carried by using the free dynamic mathematics software GeoGebra.
Attorps, Iiris,   +3 more
core  

From tetrachoric to kappa: How to assess reliability on binary scales

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Reliability is crucial in psychometrics, reflecting the extent to which a measurement instrument can discriminate between individuals or items. While classical test theory and intraclass correlation coefficients are well‐established for quantitative scales, estimating reliability for binary outcomes presents unique challenges due to their ...
Sophie Vanbelle
wiley   +1 more source

Taylor series

open access: yes, 2016
Presents a program that will graph the first 20 Maclaurin polynomials (Taylor polynomials about x=0) of y=f(x), after supply f(x) and the Taylor coefficients, a[n]Componente Curricular::Educação Superior::Ciências Exatas e da Terra ...
Lovelock, David
core  

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