Results 61 to 70 of about 385,673 (291)

Physical Activity, Physical Fitness and Academic Achievements of Primary School Children

Baltic Journal of Sport and Health Sciences, 2018
Background.The purpose of this study is to estimate physical activity, physical ftness and assessment of mathematical achievements in primary schoolchildren. Methods. The study involved 1st grade students (N = 93), 45 of which were girls and 48 were boys.
Irina Klizienė, Laura Kimantienė, Ginas Čižauskas, Laura Daniusevičiūtė-Brazaitė, Gintautas Cibulskas, Arūnė Janulevičienė   +5 more
doaj   +1 more source

Developing Preservice Teachers’ Mathematical and Pedagogical Knowledge Using an Integrated Approach [PDF]

, 2010
This paper describes how an integrated mathematics content and early field-experience course provides opportunities for preservice elementary teachers to develop understanding of mathematics and mathematics teaching.
Magiera, Marta, van den Kieboom, Leigh A.   +1 more
core   +1 more source

Mathematical description of q‐space in spherical coordinates: Exact q‐ball imaging [PDF]

Magnetic Resonance in Medicine, 2009
AbstractNovel methodologies have been recently developed to characterize the microgeometry of neural tissues and porous structures via diffusion MRI data. In line with these previous works, this article provides a detailed mathematical description of q‐space in spherical coordinates that helps to highlight the differences and similarities between ...
Erick Jorge, Canales-Rodríguez, Lester, Melie-García, Yasser, Iturria-Medina   +2 more
openaire   +2 more sources

Passivation‐Induced Species Dynamics and Microstructural Evolution in Solid‐State Lithium–Sulfur Cathodes

Advanced Science, EarlyView.
The formation of insulating Li2S during discharge in solid‐state lithium–sulfur batteries passivate reaction sites and limits sulfur utilization. In this work, a microstructure‐resolved modeling framework coupling transport and reaction kinetics is developed to predict charge–discharge behavior and reveal particle‐scale species evolution and incomplete
Arpan K. Sharma, Bairav S. Vishnugopi, Elif Pınar Alsaç, Matthew T. McDowell, Partha P. Mukherjee   +4 more
wiley   +1 more source

Difference in out-of-school physical activity patterns, sedentary behavior, and health-related fitness in relation to mathematics achievement among school-aged children: a cross-sectional study

Frontiers in Education
AimThis study examined differences in health-related fitness, physical activity patterns, and sedentary behavior among Qatari schoolchildren, classified by their mathematics achievement levels.MethodsNinety-eight schoolchildren (age: 12.1 ± 0.5 years ...
Souhail Hermassi, Wissem Dhahbi, Wissem Dhahbi, Nidhal Jebabli, Abdulla Alneama, Sascha Ketelhut, Roland van den Tillaar   +6 more
doaj   +1 more source

W.W. Rouse Ball and the mathematics of string figures

Historia Mathematica, 2014
This article examines a chapter of the popular book Mathematical Recreations and Essays (5th to 9th editions) written by the Cambridge mathematician Walter William Rouse Ball (1850–1925). This chapter is devoted to “String Figures”, a procedural activity which consists in producing geometrical forms with a loop of string and which is carried out in ...
openaire   +4 more sources

Mathematical modeling of the flow of a volleyball ball [PDF]

Education and science in the modern context, 2019
Volleyball serves can be divided into power, planning and mounted. Power serve achievements are characterized by high initial velocity, gliding type serves are characterized by irregular ball movement, and the goal of promotion is to land the ball on the side of the nearest opponent, possibly in the net.
openaire   +1 more source

Miniaturized 3D Magnetic Force Sensor via Laser‐Assisted Folding and Magnetization for Enhanced Robotic Dexterity

Advanced Science, EarlyView.
To achieve 3D force sensing in confined spaces such as fingertips, we developed a laser‐assisted folding and magnetization method to fabricate miniature films with precise centripetal magnetization. The resulting compact sensor delivers high force resolution, rapid response, and long‐term stability, significantly enhancing the manipulation capabilities
Yujie Huang, Huangzhe Dai, Chengqian Zhang, Daofan Tang, Xinxin Zhang, Haonan Sun, Annan Ding, Xuebin Ni, Yizhi Zhang, Chengfeng Pan, Peng Zhao   +10 more
wiley   +1 more source

Reflexões e conhecimentos evidenciados por professores que estudam área de figuras planas

Zetetiké, 2020
This study aims to discuss and understand the process of (re)significance of teachers’ professional knowledge based on discussions and reflections carried out by a group of teachers who teach mathematics for the initial years of the elementary education.
Angelica da Fontoura Garcia Silva, Susana Maris França da Silva, Maria Elisa Esteves Lopes Galvão   +2 more
doaj   +1 more source

Some more amplituhedra are contractible

, 2019
The amplituhedra arise as images of the totally nonnegative Grassmannians by projections that are induced by linear maps. They were introduced in Physics by Arkani-Hamed \& Trnka (Journal of High Energy Physics, 2014) as model spaces that should provide ...
Blagojević, Pavle V. M., Galashin, Pavel, Palić, Nevena, Ziegler, Günter M.   +3 more
core   +1 more source