Results 201 to 210 of about 3,226,720 (396)

Visualization of missing data: a state-of-the-art survey [PDF]

open access: yesarXiv
Missing data, the data value that is not recorded for a variable, occurs in almost all statistical analyses and may be caused by many reasons, such as lack of collection or a lack of documentation. Researchers need to adequately deal with this issue to provide a valid analysis.
arxiv  

Then and now: Twenty years of education research methods use in the United Kingdom

open access: yesBritish Educational Research Journal, EarlyView.
Abstract There have been debates about the quality and usefulness of education research for a long time, with opinion often dividing along methodological lines. Those on different sides of an apparent methodological schism often bemoan the lack of recognition and resources afforded to their chosen approach.
Emma Smith   +4 more
wiley   +1 more source

Unveiling student sentiment dynamics toward AI‐based education through statistical analysis and Monte Carlo simulation

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This study explores the multifaceted dynamics of student sentiment towards artificial intelligence (AI)‐based education by integrating sentiment analysis techniques with statistical methods, including Monte Carlo simulations and decision tree modelling, alongside qualitative grounded theory analysis.
Volkan Duran   +2 more
wiley   +1 more source

Flavonoid Profile, Biological Potentials, and In Silico Approaches of Methanol Extracts on AChE: Amaranthus retroflexus L.

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT This study investigated the flavonoid compounds and their biological activities in methanol extracts obtained from root, stem, leaf, and flower parts of Amaranthus retroflexus L. Flavonoids in the extracts were characterized for the first time by liquid chromatography–highresolution mass spectrometry (LC–HRMS), and a total of eight flavonoid ...
Bedrettin Selvi   +6 more
wiley   +1 more source

Multi-Object Tracking by Hierarchical Visual Representations [PDF]

open access: yesarXiv
We propose a new visual hierarchical representation paradigm for multi-object tracking. It is more effective to discriminate between objects by attending to objects' compositional visual regions and contrasting with the background contextual information instead of sticking to only the semantic visual cue such as bounding boxes.
arxiv  

Characterization of the Cubamyces Menziesii Terpenome

open access: yesChemBioChem, EarlyView.
The genome of Cubamyces menziesii reveals 18 putative sesquiterpene cyclase genes. These genes are cloned and expressed in Escherichia coli, yielding 10 active enzymes. Using farnesyl diphosphate as substrate, the enzymes are analyzed, and the products characterized after bioconversion, uncovering diverse sesquiterpene structures. This study highlights
Létitia Leydet   +10 more
wiley   +1 more source

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