Results 101 to 110 of about 718,719 (302)

REPRESENTASI MATEMATIS SISWA KELAS VII DI SMP N 9 YOGYAKARTA DALAM MEMBANGUN KONSEP SISTEM PERSAMAAN LINEAR DUA VARIABEL [PDF]

, 2014
The purpose of this study was to describe the preference of using of mathematical representations form of the seventh grade students of SMP 9 Yogyakarta who have high ability in developing the concept of a Systems of Linear Equations in Two Variables (
CAHDRIYANA, RIMA AKSEN
core   +2 more sources

Students' mathematical representation abilities in statistics

Jurnal Inovasi Pembelajaran Matematika: PowerMathEdu
Representation is a form of student thinking about a problem that is used to find a solution to a problem. The form of student thinking can be in the form of words or verbs, tables, graphs, pictures and mathematical symbols. This study aims to analyze students performance in completing the mathematical representation ability test.
openaire   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Mathematical Representation Ability-Based Mathematical Contextual Problems of Sequences and Progression Material

VYGOTSKY
This research objective is to analyze and explain the student’s capacity for mathematical representation based on mathematical contextual problems of arithmetic and geometric sequences and progression material. Students enrolled in SMA 1 Sukoharjo X.E10 were the subject of this research.
Lis Diana Sri Wahyuning, null Nida Sri Utami   +1 more
openaire   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Kemampuan Representasi Matematis Siswa dalam Materi Fungsi di Kelas VIII SMP Bumi Khatulistiwa [PDF]

, 2017
Representation is central to study of mathematics. Students can develop and deepen their understanding of mathematical concepts and relationships as they create, compare, and use various representations.
Herlina, H. (Herlina), Nursangaji, A. (Asep), Yusmin, E. (Edy)   +2 more
core  

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Children’s Non-symbolic and Symbolic Numerical Representations and Their Associations With Mathematical Ability

Frontiers in Psychology, 2018
Most empirical evidence supports the view that non-symbolic and symbolic representations are foundations for advanced mathematical ability. However, the detailed development trajectories of these two types of representations in childhood are not very ...
Yanjun Li, Yanjun Li, Meng Zhang, Yinghe Chen, Zhijun Deng, Xiaoshuang Zhu, Shijia Yan   +6 more
doaj   +1 more source

PENERAPAN PENDEKATAN SAINTIFIK BERBASIS MASALAH KONTEKSTUAL UNTUK MENINGKATKAN KEMAMPUAN REPRESENTASI MATEMATIK DAN PEMECAHAN MASALAH MATEMATIK SEKOLAH MENENGAH PERTAMA: Penelitian Kuasi Eksperimen terhadap Siswa Kelas VII SMP Negeri 3 Lembang Tahun Ajaran 2014/2015 [PDF]

, 2015
Penelitian ini bertujuan untuk mengetahui perbedaan peningkatan kemampuan representasi matematik dan perolehan kemampuan pemecahan masalah matematik antara siswa yang mendapat pembelajaran dengan pendekatan saintifik berbasis masalah kontekstual dengan ...
Rustika, Putik
core  

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source