Results 91 to 100 of about 581,297 (332)

Studi Komparasi Penggunaan Strategi NHT dengan STAD terhadap Hasil Belajar Matematika Siswa Kelas IV SDN Mojolegi Tahun 2015/2016 [PDF]

open access: yes, 2016
This study uses a quantitative study with experimental method. This research aimed to know. (1) The difference between the results of mathematics learning strategy use NHT (Numbered Heads Together) with STAD (Student Teams Achievement Division) in the ...
Prima Leksikowati, Ayunda
core  

Microsphere Autolithography—A Scalable Approach for Arbitrary Patterning of Dielectric Spheres

open access: yesAdvanced Functional Materials, EarlyView.
MicroSphere Autolithography (µSAL) enables scalable fabrication of patchy particles with customizable surface motifs. Focusing light through dielectric microspheres creates well defined, tunable patches via a conformal poly(dopamine) photoresist. Nearly arbitrary surface patterns can be achieved, with the resolution set by the index contrast between ...
Elliott D. Kunkel   +3 more
wiley   +1 more source

Eksperimen Penerapan Pembelajaran Matematika dengan Model Student Teams Achievement Division (STAD) dan Jigsaw Terhadap Prestasi Belajar Ditinjau dari Minat Belajar Siswa Kelas VII Semester Genap SMP Muhammadiyah 4 Surakarta Tahun 2015/2016 [PDF]

open access: yes, 2016
The research is conducted to know: (1) the significant effect of learning model Student Teams Achievement Division (STAD) and Jigsaw to learning achievement of mathematics, (2) the significant effect of learning interest to learning achievement of ...
, dris Harta, M.A, Ph. D, Nurjannah, Evi
core  

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

open access: yesAdvanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra   +8 more
wiley   +1 more source

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

open access: yesAdvanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu   +12 more
wiley   +1 more source

Contextualiser pour enseigner les mathématiques : un enjeu de formation

open access: yesAnnales de Didactique et de Sciences Cognitives, 2018
Research in mathematics education shows that dwelling upon questions regarding “contextualizations” in teaching and learning mathematics is important for teacher training.
GREFEM
doaj   +1 more source

Information Compression, Intelligence, Computing, and Mathematics [PDF]

open access: yes, 2015
This paper presents evidence for the idea that much of artificial intelligence, human perception and cognition, mainstream computing, and mathematics, may be understood as compression of information via the matching and unification of patterns.
Wolff, J. Gerard
core  

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu   +14 more
wiley   +1 more source

SUBJECT «NUMBER SYSTEMS» IN TWO-LEVELED FORMAT PREPARATION TEACHERS OF MATHEMATICS

open access: yesОбразование и наука, 2017
The aim of this article is to analyze the format of a two-leveled training – bachelor and master – future teachers of mathematics from the point of view of the content of mathematical material, which is to develop prospective teachers of mathematics at ...
V. I. Igoshin
doaj   +1 more source

Bayesian Modeling and MCMC Computation in Linear Logistic Regression for Presence-only Data [PDF]

open access: yes, 2013
Presence-only data are referred to situations in which, given a censoring mechanism, a binary response can be observed only with respect to on outcome, usually called \textit{presence}.
Divino, Fabio   +3 more
core  

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