Results 191 to 200 of about 56,963 (291)

Eclipsing high-mass binary stars [PDF]

, 2014
Die Masse eines Sterns ist der maßgebende Parameter, der seine gesamte Entwicklung bestimmt. Massen von O-Sternen sind von besonderer Bedeutung, da sie die Hauptquellen von UV-Strahlung in der Galaxis sind und einen Großteil der schweren Elemente erzeugen. Damit spielen sie eine Schlüsselrolle in der Entwicklung unserer Galaxis.
openaire   +1 more source

From Reflection to Action: A Controlled Field Study on How Learners Interpret and Respond to Feedback in Learning Analytics Dashboards

Journal of Computer Assisted Learning, Volume 41, Issue 4, August 2025.
ABSTRACT Background Learning analytics dashboards (LAD) have been developed as feedback tools to help students self‐regulate their learning (SRL) by using the large amounts of data generated by online learning platforms. Despite extensive research on LAD design, there remains a gap in understanding how learners make sense of information visualised on ...
Tornike Giorgashvili, Ioana Jivet, Cordula Artelt, Daniel Biedermann, Daniel Bengs, Frank Goldhammer, Carolin Hahnel, Julia Mendzheritskaya, Julia Mordel, Monica Onofrei, Marc Winter, Ilka Wolter, Holger Horz, Hendrik Drachsler   +13 more
wiley   +1 more source

Orbital period change of Dimorphos due to the DART kinetic impact. [PDF]

Nature, 2023
Thomas CA, Naidu SP, Scheirich P, Moskovitz NA, Pravec P, Chesley SR, Rivkin AS, Osip DJ, Lister TA, Benner LAM, Brozović M, Contreras C, Morrell N, Rożek A, Kušnirák P, Hornoch K, Mages D, Taylor PA, Seymour AD, Snodgrass C, Jørgensen UG, Dominik M, Skiff B, Polakis T, Knight MM, Farnham TL, Giorgini JD, Rush B, Bellerose J, Salas P, Armentrout WP, Watts G, Busch MW, Chatelain J, Gomez E, Greenstreet S, Phillips L, Bonavita M, Burgdorf MJ, Khalouei E, Longa-Peña P, Rabus M, Sajadian S, Chabot NL, Cheng AF, Ryan WH, Ryan EV, Holt CE, Agrusa HF.   +48 more
europepmc   +1 more source

Rotational and Candidate-Eclipsing-Binary Light Curves for Pre-Main-Sequence Stars in the Chamaeleon I Star-Forming Cloud [PDF]

, 2009
W. A. Lawson, Lisa A. Crause
openalex   +1 more source

The Limits of Inclination for Binary Star Partial Eclipses

The Astrophysical Journal, 1999
Algorithms are given for calculating the inclinations at which total eclipses become partial eclipses and partial eclipses become grazing eclipses. It is shown that the larger star in a contact or nearly contact system is so distorted in shape that it becomes self-eclipsing, as a shallow concavity develops near the point of contact. Algorithms are also
openaire   +2 more sources

ArtEM: Enhancing the Understanding of Integer and Modular Arithmetic Through Interactive Learning Software

Computer Applications in Engineering Education, Volume 33, Issue 4, July 2025.
ABSTRACT Integer and modular arithmetic is a fundamental area of mathematics, with extensive applications in computer science, and is essential for cryptographic protocols, error correction, and algorithm efficiency. However, students often struggle to understand its abstract nature, especially when transitioning from theoretical knowledge to practical
Violeta Migallón, Héctor Penadés, Jose Penadés   +2 more
wiley   +1 more source

Physical Parameters of 11,100 Short-period ASAS-SN Eclipsing Contact Binaries

The Astrophysical Journal Supplement Series
Starting from more than 11,200 short-period (less than 0.5 days) EW-type eclipsing binary candidates with the All-Sky Automated Survey for Supernovae V -band light curves, we use the Markov Chain Monte Carlo algorithm and neural networks to obtain the ...
Xu-Zhi Li, Qing-Feng Zhu, Xu Ding, Xiao-Hui Xu, Hang Zheng, Jin-Sheng Qiu, Ming-Chao Liu   +6 more
doaj   +1 more source

Trans Feminism and the Women's Liberation Movement in Britain, c. 1970–1980

Gender &History, Volume 37, Issue 2, Page 748-763, July 2025.
Abstract The history of the British women's liberation movement (WLM) is a growing field of study, but it has had little to say about trans participants in the movement. Drawing on feminist and LGBT+ archives and interviews, this article argues that while trans acceptance in ‘women‐only’ groups was not guaranteed during the period between 1970 and 1980,
Sam Caslin
wiley   +1 more source

TYC 3340-2437-1: A Quadruple System with a Massive Star

The Astrophysical Journal
Hierarchical massive quadruple systems are ideal laboratories for examining the theories of star formation, dynamical evolution, and stellar evolution.
Jiao Li, Chao Liu, Changqing Luo, Bo Zhang, Jiang-Dan Li, Jia-Dong Li, Zhan-Wen Han, Xue-Fei Chen, Xiao-Bin Zhang, Lu-Qian Wang, Min Fang, Li-Feng Xing, Xi-Liang Zhang, Chichuan Jin   +13 more
doaj   +1 more source

Molecular precursor pathway to Co1−xNixNb2O6 for photocatalytic dye degradation: Optical and charge transport studies

Journal of the American Ceramic Society, Volume 108, Issue 7, July 2025.
The (micro)structure, morphology, optical, photocatalytic, electrical and dielectric properties of mixed metal oxides CoNb2O6, NiNb2O6 and Co0.5Ni0.5Nb2O6, prepared through a modified single‐source molecular precursor route, were investigated. Abstract A new approach for the formation of binary and ternary mixed metal oxides, namely, CoNb2O6, NiNb2O6 ...
Ana Lozančić, Martina Vrankić, Marta Razum, Luka Pavić, Lidija Androš Dubraja, Marijana Jurić   +5 more
wiley   +1 more source