Results 51 to 60 of about 384,312 (331)

Spectral Tuning of Hyperbolic Shear Polaritons in Monoclinic Gallium Oxide via Isotopic Substitution

Advanced Materials, EarlyView.
Spectral tuning of highly directional hyperbolic shear polaritons is realized via isotopic substitution of 16O to 18O in monoclinic β$\beta$‐phase gallium oxide. A red‐shift of almost 40 cm−1 is experimentally demonstrated with near‐field imaging, corroborated by the permittivity change extracted from far‐field experiments and density functional theory.
Giulia Carini, Mohit Pradhan, Elena Gelžinytė, Andrea Ardenghi, Saurabh Dixit, Maximilian Obst, Aditha S. Senarath, Niclas S. Mueller, Gonzalo Álvarez‐Pérez, Katja Diaz‐Granados, Ryan A. Kowalski, Richarda Niemann, Felix G. Kaps, Jakob Wetzel, Raghunandan Balasubramanyam Iyer, Piero Mazzolini, Mathias Schubert, J. Michael Klopf, Johannes T. Margraf, Oliver Bierwagen, Martin Wolf, Karsten Reuter, Lukas M. Eng, Susanne C. Kehr, Joshua D. Caldwell, Christian Carbogno, Thomas G. Folland, Markus R. Wagner, Alexander Paarmann   +28 more
wiley   +1 more source

Physical Fitness and Academic Performance in Normal Weight, Overweight, and Obese Schoolchild Handball Players in Qatar: A Pilot Study

Frontiers in Psychology, 2021
This study aimed to investigate the relationships between physical fitness and academic performance in youth handball players of different BMI classifications. Thirty-three male handball players (age: 10.3 ± 0.61 years; body mass: 47.1 ± 12.1 kg; height:
Souhail Hermassi, Lawrence D. Hayes, Nicola Luigi Bragazzi, René Schwesig   +3 more
doaj   +1 more source

Upaya Meningkatkan Aktivitas dan Prestasi Belajarmatematika dengan Model Pembelajarankooperatif Tipe Think Pair Share (Tps)disertai Bola Pantai Bagi Siswakelas IV Sdn Klagaran [PDF]

, 2015
The purposes of this research is to improve the activity and learning outcomes in mathematics of students 4th grade Klagaran Public Elementary School through cooperative learning type Think Pair Share with beach ball.
Janah, S. N. (Siti), Purnami, D. A. (Dra)   +1 more
core  

A review of research trends in mathematics teacher education [PDF]

, 2011
This article presents a literature review in the field of mathematics teacher education research. The review focuses on identifying the main research trends in this field, that is, the main research topics that the mathematics teacher educators ...
Sánchez, Mario
core   +2 more sources

Gradient‐Modified Li‐Rich Manganese‐Based Oxides Cathodes with Breakthrough of Kinetic Limitation for High‐Performance All‐Solid‐State Lithium Metal Batteries

Advanced Materials, EarlyView.
The novel gradient‐modified LRMO has been synthesized via a one‐step mechano‐fusion process, with simultaneous S and Zr co‐doping in the near‐surface region and an amorphous coating. The synergistic co‐functionalization stabilizes the oxygen framework, enhances charge transport, and suppresses oxygen dimerization under high potential, which enable ...
Ya Chen, Ling Huang, Awais Ghani, Xiaodong Chen, Xin Gao, Tao Meng, Hongchao Sun, Runjing Xu, Peiyi Ji, Xianghong Deng, Long Bao, Shuang Wang, Nana Wang, Gang Tan, Guoxiu Wang, Zhen Huang   +15 more
wiley   +1 more source

Bounding the eigenvalues of the Laplace-Beltrami operator on compact submanifolds [PDF]

, 2009
We give upper bounds for the eigenvalues of the La-place-Beltrami operator of a compact $m$-dimensional submanifold $M$ of $\R^{m+p}$. Besides the dimension and the volume of the submanifold and the order of the eigenvalue, these bounds depend on either ...
Colbois, Bruno, Dryden, Emily B., Soufi, Ahmad El   +2 more
core   +6 more sources

4D Bioprinted Self‐Folding Scaffolds Enhance Cartilage Formation in the Engineering of Trachea

Advanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
A bilayer self‐folding scaffold, triggerable by humidity, is fabricated via 4D bioprinting for trachea engineering. An analytical model is derived to predict its radius of curvature, enabling its scalability. Cartilage progenitor cells seeded on the scaffold perceive scaffold final curvature and react to it, by enhancing the upregulation of pro ...
Irene Chiesa, Alessio Esposito, Giovanni Vozzi, Riccardo Gottardi, Carmelo De Maria   +4 more
wiley   +1 more source

The compactness of the sum of weighted composition operators on the ball algebra

Journal of Inequalities and Applications, 2011
In this paper, we investigate the compactness of the sum of weighted composition operators on the unit ball algebra, and give the characterization of compact differences of two weighted composition operators on the ball algebra.
Tong Ce-Zhong, Zhou Ze-Hua
doaj  

Quality Control Testing with Experimental Practical Illustrations under the Modified Lindley Distribution Using Single, Double, and Multiple Acceptance Sampling Plans

Mathematics, 2023
Quality control testing under acceptance sampling plans involves inspecting a representative sample of products or materials from a larger lot or batch to determine whether the lot meets predetermined quality standards.
Yusra Tashkandy, Walid Emam, M. Masoom Ali, Haitham M. Yousof, Basma Ahmed   +4 more
doaj   +1 more source

The Importance of Writing in Mathematics: Why Writing Allows for a Deeper understanding of the Mathematical Content [PDF]

, 2014
When learning a new subject or course material, writing can be an essential tool for a deeper understanding of content. The importance of writing in mathematics is no different—yet in mathematics, writing seems to be the odd-ball out (exception). However,
Quealy, Cory
core   +1 more source