Results 151 to 160 of about 57,017 (311)

Heritage language learners' language availability and choice: A case study of primary school Persian learners in Australia

Foreign Language Annals, EarlyView.
Abstract This study investigates the factors influencing Persian language learning among heritage language learners in Sydney, Australia, with a particular focus on how formal and informal settings shape language choice and availability. The research employs a qualitative case study approach, incorporating data from student focus groups, semi ...
Mojgan Mokhatebi Ardakani, Dara Tafazoli
wiley   +1 more source

Quasar Microlensing Statistics and Flux-ratio Anomalies in Lens Models

The Astronomical Journal
Precise lens modeling is a critical step in time delay studies of multiply imaged quasars, which are key for measuring some important cosmological parameters (especially H _0 ).
E. Mediavilla, J. Jiménez-Vicente, V. Motta   +2 more
doaj   +1 more source

The gravitational lens effect and the surface density of quasars near foreground galaxies [PDF]

, 1985
E. J. Zuiderwijk
openalex   +1 more source

An Economic Analysis of Difficulty Adjustment Algorithms in Proof‐of‐Work Blockchain Systems

International Economic Review, EarlyView.
ABSTRACT We study the stability of cryptocurrency systems through difficulty adjustment. Bitcoin's difficulty adjustment algorithm (DAA) exhibits instability when the reward elasticity of the hash rate is high, implying that a sharp price reduction could disrupt the current Bitcoin system.
Shunya Noda, Kyohei Okumura, Yoshinori Hashimoto   +2 more
wiley   +1 more source

Forecasting the Detection of Lyman-alpha Forest Weak Lensing from the Dark Energy Spectroscopic Instrument and Other Future Surveys

The Open Journal of Astrophysics
The apparent angular positions of quasars are deflected on the sky by the gravitational field sourced by foreground matter. This weak lensing effect is measurable through the distortions it introduces in the lensed quasar spectra.
Patrick Shaw, Rupert A. C. Croft, R. Benton Metcalf   +2 more
doaj   +1 more source

On Arrival Time Difference Between Lensed Gravitational Waves and Light [PDF]

, 2020
Teruaki Suyama
openalex   +1 more source

Understanding Atrial Fibrillation Complexity Through the Lens of Turbulence Dynamics: Implications for Treatment Strategies

Journal of Cardiovascular Electrophysiology, EarlyView.
ABSTRACT Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. Its incidence increases significantly with age and has become a major global public health issue. Although research into the mechanisms of AF has spanned over a century‐ranging from the reentry theory to the rotor hypothesis‐none of these
Xin Chu, Xiaohan Jiang, Qing Qiao, Xiaojun Wang, Hong Ye   +4 more
wiley   +1 more source

Cosmological Application of the Lens-Redshift Probability Distribution with Improved Galaxy-Scale Gravitational Lensing Sample

, 2023
Hui Li, Yun Chen
openalex   +1 more source

Exotic image formation in strong gravitational lensing by clusters of galaxies – II. Uncertainties [PDF]

, 2021
Ashish Kumar Meena, Agniva Ghosh, J. S. Bagla, Liliya L. R. Williams   +3 more
openalex   +1 more source

Pan‐Europe Revisited: Inter‐War Debates and the EU's Pursuit of Geopolitical Power

JCMS: Journal of Common Market Studies, EarlyView.
ABSTRACT The European Union's (EU) transformation from a peace project to an assertive geopolitical actor reflects enduring tensions in integration theory dating back to the inter‐war period. This paper develops a comparative framework distinguishing territorial integration logic, which emphasises bounded political communities and collective defence ...
Kamil Zwolski
wiley   +1 more source