Adjudication rather than experience of data abstraction matters more in reducing errors in abstracting data in systematic reviews.
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DOI: 10.1002/jrsm.1396
Abstract: BACKGROUND During systematic reviews, "data abstraction" refers to the process of collecting data from reports of studies. The data abstractors' level of experience may affect the accuracy of data abstracted. Using data from a randomized… read more here.
Keywords: data abstraction; less experienced; systematic reviews; abstraction ... See more keywords
Theoretical study of hydrogen abstraction by small radicals from cyclohexane-carbonyl-hydroperoxide
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DOI: 10.1007/s00214-019-2426-1
Abstract: AbstractHydrogen abstraction from carbonyl-hydroperoxide is a new reaction class in the low-temperature oxidation of hydrocarbons. In this work, a comprehensive study to the kinetics for the hydrogen abstraction from cyclohexane-carbonyl-hydroperoxide (CCHP) is investigated using the… read more here.
Keywords: cyclohexane carbonyl; hydrogen abstraction; study; abstraction ... See more keywords
A reinvestigation of the deceptively simple reaction of toluene with OH, and the fate of the benzyl radical: a combined thermodynamic and kinetic study on the competition between OH-addition and H-abstraction reactions
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DOI: 10.1007/s00214-020-02626-8
Abstract: This work reports density functional and composite model chemistry calculations performed on the reactions of toluene with the hydroxyl radical. Both the experimentally observed H-abstraction from the methyl group and possible OH-additions to the phenyl… read more here.
Keywords: addition; chemistry; study; abstraction ... See more keywords
Simulation of groundwater flow paths under managed abstraction and recharge in an analogous sand-tank phreatic aquifer
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DOI: 10.1007/s10040-019-02029-5
Abstract: Understanding the impacts of managed abstraction and recharge, i.e. artificial regulation of groundwater, on flow dynamics contributes to water resources planning and effective management of river basins. Based on the hydrogeological conditions of the aquifer… read more here.
Keywords: groundwater flow; flow paths; abstraction; recharge ... See more keywords
Body motion, early algebra, and the colours of abstraction
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DOI: 10.1007/s10649-020-09955-2
Abstract: This paper focuses on the emergence of abstraction through the use of a new kind of motion detector—WiiGraph—with 11-year-old children. In the selected episodes, the children used this motion detector to create three simultaneous graphs… read more here.
Keywords: motion; motion early; early algebra; algebra colours ... See more keywords
On Abstraction in Mathematics and Indefiniteness in Quantum Mechanics
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DOI: 10.1007/s10992-020-09586-1
Abstract: Abstraction turns equivalence into identity, but there are two ways to do it. Given the equivalence relation of parallelness on lines, the # 1 way to turn equivalence into identity by abstraction is to consider… read more here.
Keywords: mathematics indefiniteness; abstraction; abstraction mathematics; quantum mechanics ... See more keywords
Idealization and abstraction in scientific modeling
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DOI: 10.1007/s11229-018-01919-7
Abstract: AbstractI argue that we cannot adequately characterize idealization and abstraction and the distinction between the two on the grounds that they have distinct semantic properties. By doing so, on the one hand, we focus on… read more here.
Keywords: scientific modeling; abstraction scientific; abstraction; idealization abstraction ... See more keywords
The Geometry of Abstraction in the Hippocampus and Prefrontal Cortex
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DOI: 10.1016/j.cell.2020.09.031
Abstract: The curse of dimensionality plagues models of reinforcement learning and decision making. The process of abstraction solves this by constructing variables describing features shared by different instances, reducing dimensionality and enabling generalization in novel situations.… read more here.
Keywords: hippocampus; dimensionality; geometry; abstraction ... See more keywords
Hydrogen-abstraction ratios: A systematic iPEPICO spectroscopic investigation in laminar flames
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DOI: 10.1016/j.combustflame.2017.12.025
Abstract: Abstract The radicals produced by hydrogen abstraction in the initial fuel decomposition step are essential in combustion kinetics, but their experimental detection is very challenging. Imaging photoelectron photoion coincidence spectroscopy enables the detection and identification… read more here.
Keywords: isomeric radicals; hydrogen abstraction; investigation; abstraction ... See more keywords
Structures, energetics, and kinetics of H-atom abstraction from methyl propionate by molecular oxygen: Ab initio and DFT investigations
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DOI: 10.1016/j.comptc.2020.113119
Abstract: Abstract Initial degradation of methyl propionate (MePr) through its reaction with triplet molecular ( 3 ∑ g - ) O2 was investigated using density functional theory (DFT) and ab initio CBS-QB3 calculations over temperature range… read more here.
Keywords: abstraction; dft; atom abstraction; methyl propionate ... See more keywords
Mechanistic elucidation of the origins of the hydrogen-abstraction reactivity of hydroxyimide organocatalysts and its application in catalyst design
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DOI: 10.1016/j.cplett.2017.06.054
Abstract: Abstract The mechanistic origin of the hydrogen-abstraction reactivity of hydroxyimide organocatalysts in three types has been theoretically explored by intrinsic reaction coordinate and distortion/interaction model. All these H-abstraction processes can be divided into two parts:… read more here.
Keywords: hydrogen abstraction; reactivity hydroxyimide; abstraction; abstraction reactivity ... See more keywords