Results 21 to 30 of about 158,691 (255)

Conceptual and representational confusion: An analysis of three foundation phase teachers’ descriptions of how they teach division

open access: yesSouth African Journal of Childhood Education, 2020
Background: In the foundation phase, division is split along the lines of grouping (quotition) and sharing (partition). Curriculum and Assessment Policy Statements (CAPS) recommends that representations such as drawings, concrete apparatus, and symbols ...
Valerie Ramsingh
doaj   +1 more source

The Fundamental Group of a Group Manifold [PDF]

open access: yesProceedings of the National Academy of Sciences, 1934
The study of the interrelations between group structures and topological structures is one of the interesting recent developments of group theory. It has become well known that a space @ which is at the same time a continuous group cannot be of arbitrary topological structure.
openaire   +4 more sources

Application of Clustering Algorithm CLOPE to the Query Grouping Problem in the Field of Materialized View Maintenance

open access: yesJournal of Computing and Information Technology, 2016
In recent years, materialized views (MVs) are widely used to enhance the database performance by storing pre-calculated results of resource-intensive queries in the physical memory.
Kateryna Novokhatska, Oleksii Kungurtsev
doaj   +1 more source

« Que faire pour susciter les interactions orales des élèves ? » Portrait d’une communauté de pratique d’enseignantes du primaire québécois

open access: yesRepères, 2023
We are conducting collaborative research which aims to co-construct, with primary school teachers, teaching and classroom management practices supporting interaction between students in reflective oral contexts.
Kathleen Sénéchal   +2 more
doaj   +1 more source

Lightness Contrast Spatially Propagates on Perceptually Unified Elements

open access: yesGestalt Theory, 2022
In 1993, Agostini and Proffitt showed that perceptual belongingness (the subsumption of some sets of elements into a perceived whole) causes simultaneous lightness contrast to be seen in configurations in which the inducing elements are not adjacent to ...
Galmonte Alessandra   +4 more
doaj   +1 more source

On Groups of Automorphism of Lie Groups [PDF]

open access: yesProceedings of the National Academy of Sciences, 1944
Not ...
openaire   +3 more sources

Analysis of approaches to assessing living standards of population

open access: yesВекторы благополучия: экономика и социум, 2023
Relevance. The need to significantly improve living standards of population in the regions of the Russian Federation. This task is defined in a number of strategic development documents at the federal level and has been repeatedly outlined in the studies
R.V. Fattakhov, P.V. Stroev
doaj   +1 more source

Class groups and automorphism groups of group rings [PDF]

open access: yesGlasgow Mathematical Journal, 1986
This paper is a sequel to [2]. A polycyclic-by-finite group G was there called dihedral free if G contains no subgroup isomorphic to 〈b, a:ba = b-1 a2 = 1〉 whose normalizer has finite index in G. It was shown in [2, Theorem F] that, if R is a commutative Noetherian domain, the group ring RG is a prime Noetherian maximal order if and only if R is ...
openaire   +1 more source

Three ABO 3′ splice-site variants including a novel one converge on a common splicing defect to attenuate blood group antigen expression

open access: yesFrontiers in Immunology
BackgroundABO subtypes are characterized by attenuated antigen expression, rendering them susceptible to serological misclassification and posing substantial risks to transfusion safety. Splice-site variants represent one of the mechanisms underlying ABO
Hongli Guan   +5 more
doaj   +1 more source

A novel ABO splice site variant underlying the A3 phenotype: immunogenetic basis and functional dissection

open access: yesFrontiers in Genetics
BackgroundAccurate ABO blood group typing is essential for transfusion safety. However, ABO subtypes resulting from genetic variation can complicate this process.
Hong-Li Guan   +6 more
doaj   +1 more source

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