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Geometric Thinking of Malaysian Elementary School Students
International Journal of Instruction, 2019 Geometry is one of the basic skills to be mastered in Malaysian mathematics education. However, there is not much information on geometry attainment of the elementary school students based on van Hiele's levels. The purpose of this study was to determine the van Hiele's levels of geometric thinking among the elementary school learners.
Md. Yunus, Aida Suraya +2 more
openaire +1 more source
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Did Lobachevsky Have A Model Of His "imaginary Geometry"? [PDF]
, 2010 The invention of non-Euclidean geometries is often seen through the optics of Hilbertian formal axiomatic method developed later in the 19th century. However such an anachronistic approach fails to provide a sound reading of Lobachevsky's geometrical ...
Rodin, Andrei
core +1 more source
Poincaré on the Foundation of Geometry in the Understanding [PDF]
, 2017 This paper is about Poincaré’s view of the foundations of geometry. According to the established view, which has been inherited from the logical positivists, Poincaré, like Hilbert, held that axioms in geometry are schemata that provide implicit ...
C. McLarty +20 more
core +1 more source
Examination of 9th Graders' Levels of Geometric Thinking
International Journal of Research in Education and Science, 2023 Robust understanding of geometry is important for students’ future studies in mathematical sciences, many careers, and for understanding the world around them. Therefore, the aim of this study was to understand the geometric thinking levels of 9th graders in Ghana before they enter the Senior High School. This study used the van Hiele theory (Van Hiele-
Nana Boahen Mensah +2 more
openaire +1 more source
FEBS Open Bio, EarlyView.Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young +7 more
wiley +1 more source
Journal of Modern Science, 2018 The paper begins with a short description of phenomenological ideas of Petr Vopěnka concerning the development of children’s geometric concepts and his notion of personality of a phenomen, which makes the phenomenon an individual entity.
Zbigniew Semadeni
doaj +1 more source
Hermann Cohen’s logic of the pure knowledge as a philosophy of science
RUDN Journal of Philosophy, 2022 The connection of Hermann Сohen’s “The Logic of Pure Knowledge” with the revolutionary transformations in physics and mathematics at the end of the 19th century is shown. Сohen criticised Kant’s answer to the question “How is mathematics possible”?
Zinaida A. Sokuler
doaj +1 more source
FEBS Open Bio, EarlyView.Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata +13 more
wiley +1 more source
Ostrogradski approach for the Regge-Teitelboim type cosmology [PDF]
, 2009 We present an alternative geometric inspired derivation of the quantum cosmology arising from a brane universe in the context of {\it geodetic gravity}.
Alberto Molgado +8 more
core +1 more source