Results 101 to 110 of about 4,980,786 (376)

Pre-service astronomy education of teachers [PDF]

Highlights of Astronomy, 2005
There is little research on elementary/secondary teacher preparation. Few teachers are called upon to teach astronomy specifically, or their astronomy teaching is peripheral to their main interest (e.g., general science at lower levels or physics at higher levels).
openaire   +3 more sources

Topology Optimization Enables Freeform Matrix Fourier Optics

Advanced Optical Materials, EarlyView.
A topology‐optimized freeform metasurface is designed and fabricated to realize matrix Fourier optics, enabling the diffraction of multiple polarization states into distinct far‐field orders. By combining forward design with gradient‐based inverse optimization, high polarization contrast of up to 98.7% is achieved.
Yu‐Tzu Liu, Yun‐Chien Wu, Chang‐Yi Lin, Huan‐Teng Su, Yu‐Qi Zhou, Yao‐Wei Huang   +5 more
wiley   +1 more source

Motivations of Educators for Participating in NITARP, an Authentic Astronomy Research Experience Professional Development Program [PDF]

Phys. Rev. Phys. Educ. Res. 14, 020102 (2018), 2018
The NASA/IPAC Teacher Archive Research Program (NITARP) partners small groups of educators with a research astronomer for a year-long authentic research project. This program aligns well with the characteristics of high-quality professional development (PD) programs and has worked with a total of 103 educators since 2005.
arxiv   +1 more source

Design of Waveguide NbN‐Based Superconductor–Insulator–Superconductor Mixer for 650 GHz

Advanced Photonics Research, EarlyView.
This research work focuses on a waveguide NbN‐based superconductor–insulator–superconductor mixer operating at 650 GHz. The signal coupling circuit is designed using a waveguide‐microstrip coupling structure, and the return loss obtained is lower than −16 dB. For the mixing circuit, its return loss is less than −7.5 dB, and the return loss reduces with
Lianhao He, Fangting Lin, Xiaoyong He
wiley   +1 more source

High‐Throughput Single‐Nanowire Optoelectronic Characterization Using Microfluidic Technology

Advanced Photonics Research, EarlyView.
An ultrathin microfluidic platform enables high‐throughput, in‐line single particle characterization of semiconductor nanowires. Using correlative spectroscopy and imaging, analysis at 240 nanowires per minute, uncovering previously hidden details about intra‐wire disorder and inter‐wire inhomogeneity, is achieved.
Tharaka MDS Weeraddana, Keisuke Minehisa, Stephen A. Church, Charles Smith, Fumitaro Ishikawa, Patrick Parkinson   +5 more
wiley   +1 more source

Technology Teacher: Singing the Black and Blues [PDF]

, 2004
Gives simple, yet authoritative answers to the questions "Why is the sky blue?" and "Why is the sky black at night?" Combines technology with its application to Earth science, astronomy, and cosmology, and does so via language arts and music!

core  

TEACHER EDUCATION IN ASTRONOMY: AN ANALYSIS OF THE BANK OF THESES AND DISSERTATIONS ON EDUCATION IN ASTRONOMY

, 2022
This research intends to present the mapping of theses and dissertations related to the theme of Teacher Education in Astronomy made available at the Bank of Theses and Dissertations on Education in Astronomy. In the data survey carried out on the website, we identified 253 theses or dissertations that deal specifically with the theme of teacher ...
Neto, Alexandre Shigunov, Langhi, Rodolfo   +1 more
openaire   +2 more sources

Correlations in Magnetic Sub‐Domains as an Unconventional Phase Diagram for van der Waals Ferromagnets

Advanced Science, EarlyView.
An unconventional magnetic order is observed in exfoliated CrBr3 layers, characterized by vertically correlated planar magnetic sub‐domains. Magnetic force microscopy, ab initio calculations, and micromagnetic simulations indicate that these sub‐domains arise from stacking faults modifying interlayer exchange coupling.
Sergey Y. Grebenchuk, Magdalena Grzeszczyk, Zhaolong Chen, Makars Šiškins, Vladislav Borisov, Manuel Pereiro, Mikhail I. Katsnelson, Olle Eriksson, Kostya S. Novoselov, Maciej Koperski   +9 more
wiley   +1 more source

Start-Up Costs in American Research Universities [PDF]

, 2003
Our report briefly summarizes findings from the 2002 Cornell Higher Education Research Institute survey of start-up costs at the over 220 universities classified as Research and Doctoral universities by the Carnegie Foundation in 1994.
Condie, Scott S, Ehrenberg, Ronald G, Rizzo, Michael J   +2 more
core   +2 more sources

Electronic Structure of Kramers Nodal‐Line Semimetal YAuGe and Anomalous Hall Effect Induced by Magnetic Rare‐Earth Substitution

Advanced Science, EarlyView.
The rare‐earth intermetallics YAuGe is identified as a Kramers nodal‐line semimetal, a topological state inherent to non‐centrosymmetric achiral lattices. Magnetic rare‐earth substitution induces an anomalous Hall effect, highlighting the impact of time‐reversal symmetry breaking on topological electronic states and offering insights into designing the
Takashi Kurumaji, Jorge I. Facio, Natsuki Mitsuishi, Shusaku Imajo, Masaki Gen, Motoi Kimata, Linda Ye, David Graf, Masato Sakano, Miho Kitamura, Kohei Yamagami, Kyoko Ishizaka, Koichi Kindo, Taka‐hisa Arima   +13 more
wiley   +1 more source