Results 31 to 40 of about 29,262,902 (336)

Multivariate sensitivity analysis: Minimum variance unbiased estimators of the first-order and total-effect covariance matrices

open access: yesReliability Engineering & System Safety, 2019
In uncertainty quantification, multivariate sensitivity analysis (MSA) extends variance-based sensitivity analysis to cope with the multivariate response, and it aims to apportion the variability of the multivariate response into input factors and their ...
M. Lamboni
semanticscholar   +1 more source

Effect-site concentration (Ce), total amount of propofol and bispectral index (BIS) at loss of consciousness.

open access: yes, 2021
Effect-site concentration (Ce), total amount of propofol and bispectral index (BIS) at loss of consciousness.
Ki Seob Han (11268398)   +9 more
core   +1 more source

Effect of Extraction Solvent/Technique on the Antioxidant Activity of Selected Medicinal Plant Extracts

open access: yesMolecules, 2009
Theeffects of four extracting solvents [absolute ethanol, absolute methanol, aqueous ethanol (ethanol: water, 80:20 v/v) and aqueous methanol (methanol: water, 80:20 v/v)] and two extraction techniques (shaking and reflux) on the antioxidant activity of ...
Bushra Sultana   +2 more
doaj   +1 more source

How Does the Development of the Internet Affect Green Total Factor Productivity? Evidence From China

open access: yesIEEE Access, 2020
Green total factor productivity is not merely an inevitable choice to continuously increase the quality of China’s economy, but also a booming demand to promote global development.
Tuochen Li   +3 more
doaj   +1 more source

THE EFFECTS OF TOTAL DARKNESS ON SCHEDULE CONTROL [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 1974
The study investigated the effect of total darkness on the key pecking of pigeons under fixed‐ratio, variable‐ratio, fixed‐interval, and variable‐interval schedules of food reinforcement. Eight pigeons were divided into groups of two, with each group conditioned to peck under one of the four schedules of reinforcement.
P W, Robinson, M F, Shelley
openaire   +2 more sources

Effects of Xenobiotics on Total Antioxidant Capacity [PDF]

open access: yesInterdisciplinary Toxicology, 2012
ABSTRACT The objective of this article was to review the effects of xenobiotics on total antioxidant capacity (TAC). Measurement of TAC is appropriate for evaluation of the total antioxidant defenses of blood, cells, and different kinds of tissues and organs.
openaire   +2 more sources

Absolute total-effectiveness of a total effective (𝑁,𝑝_{𝑛}) method [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
In the present paper we investigate absolute total effectiveness of a ( N , p n ) (N,{p_n}) method. It is established that a method known to be total effective is also absolute total effective.
openaire   +1 more source

Establishing a range of motion boundary for total hip arthroplasty [PDF]

open access: yes, 2011
Range of motion of the hip joint is a major contributor to dislocation post total hip replacement. Impingement is often treated as a surrogate for dislocation and occurs – prosthetically – when the neck of the femoral component contacts with the rim of ...
D R Griffin   +7 more
core   +1 more source

Estimating the natural indirect effect and the mediation proportion via the product method

open access: yesBMC Medical Research Methodology, 2021
Background The natural indirect effect (NIE) and mediation proportion (MP) are two measures of primary interest in mediation analysis. The standard approach for mediation analysis is through the product method, which involves a model for the outcome ...
Chao Cheng, Donna Spiegelman, Fan Li
doaj   +1 more source

Total effect.

open access: yes, 2022
Total effect.
Clement Mintah (12225002)   +3 more
core   +1 more source

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