A Teaching Experiment to Elucidate a Cation-π Effect in an Alkyne Cycloaddition Reaction and Illustrate Hypothesis Driven Design of Experiments.
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DOI: 10.1021/acs.jchemed.6b00318
Abstract: An organic chemistry experiment is described that is based on recent research to elucidate a novel cation-π interaction between tetraalkammonium cations and propargyl hydrazines. This non-bonded interaction is a key component of the mechanism of… read more here.
Keywords: teaching experiment; cation; cycloaddition; chemistry ... See more keywords
Addressing Uncodable Behaviors: A Bayesian Ordinal Mixture Model Applied to a Mathematics Learning Trajectory Teaching Experiment
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DOI: 10.1080/19345747.2024.2347910
Abstract: Abstract When researchers code behavior that is undetectable or falls outside of the validated ordinal scale, the resultant outcomes often suffer from informative missingness. Incorrect analysis of such data can lead to biased arguments around… read more here.
Keywords: uncodable behaviors; addressing uncodable; teaching experiment; mixture ... See more keywords
Determining the refractive index of transparent materials using total internal reflection in teaching experiment
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DOI: 10.1088/1361-6552/ad4b86
Abstract: In this paper, we introduce a three-dimensional demonstration for the refraction and reflection based on total internal reflection of light in transparent media, and discuss the reasons for the formation of circular bright areas and… read more here.
Keywords: total internal; teaching experiment; internal reflection; reflection ... See more keywords