Results 61 to 70 of about 14,934 (337)

Linking and comparing short and full-length concept inventories of electricity and magnetism using item response theory

Physical Review Physics Education Research, 2019
In physics education research (PER), concept inventories (CIs) have become standard instruments for assessing students’ learning throughout instruction.
Yang Xiao, Joseph C. Fritchman, Jacqueline Y. Bao, Ying Nie, Jing Han, Jianwen Xiong, Hua Xiao, Lei Bao   +7 more
doaj   +1 more source

Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs

Advanced Functional Materials, EarlyView.
Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric, Gohar Soufi, Ziqiao Li, Erick Chica, Amran Abdirasheed Ali Jinow, Nada Al‐Roubaï, Noor Ahmed, Yaman Göksel, Anja Boisen   +8 more
wiley   +1 more source

Peculiarities of the research activity training of students of a direction of «Physicist» at the tutoring initial stage in higher school

Наука. Инновации. Технологии, 2022
The necessity of the improvement of the methodology of the laboratory course in physics by means of the use of creative tasks is shown in the article.
Irina Markovna Agibova, Marita Albertovna Bedzhanyan, Oksana Aleksandrovna Nechaeva, Olga Viktorovna Fedina   +3 more
doaj  

Electricity and Magnetism

, 1965
Classic textbook introducing students to electricity and magnetism, widely considered the best undergraduate textbook on the subject ever ...
Purcell, Edward Mills
core  

Electricity and magnetism: Hands-on minds-on approach [PDF]

, 2016
Title: Electricity and magnetism: Hands-on minds-on approach Author: Věra Koudelková Department: Department of Physics Education Supervisor: Doc. RNDr. Leoš Dvořák, CSc., KDF Abstract: The PhD.
Koudelková, Věra
core  

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Students’ understanding of electric flux and magnetic circulation and the role of the superposition principle in Gauss’s and Ampere’s laws

Physical Review Physics Education Research
Electricity and magnetism are fundamentally interconnected, as represented by the symmetry in Maxwell’s equations. Much of the research on Gauss’s and Ampere’s laws has focused on their application in calculating electric or magnetic fields.
Eder Hernandez, Esmeralda Campos, Pablo Barniol, Genaro Zavala   +3 more
doaj   +1 more source

The electricity before Faraday. Part 2

Revista Facultad de Ingeniería Universidad de Antioquia, 2004
This is the second and final part of this paper. The first part appeared in the former issue. This part deals with the period of the so-called Modern Age after the Renaissance, until the times of Faraday.
Gabriel Poveda Ramos
doaj   +1 more source

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

Advanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi, Minh Tuan Luu, Christopher Linderälv, Vytautas Žalandauskas, Marianne Etzelmüller Bathen, Nguyen Tien Son, Takeshi Ohshima, Gergő Thiering, Lukas Razinkovas, Ronald Ulbricht   +9 more
wiley   +1 more source

Gender gap on concept inventories in physics: What is consistent, what is inconsistent, and what factors influence the gap?

Physical Review Special Topics. Physics Education Research, 2013
We review the literature on the gender gap on concept inventories in physics. Across studies of the most commonly used mechanics concept inventories, the Force Concept Inventory and Force and Motion Conceptual Evaluation, men’s average pretest scores are
Adrian Madsen, Sarah B. McKagan, Eleanor C. Sayre   +2 more
doaj   +1 more source