Results 151 to 160 of about 786,932 (316)
The gravitational lens effect and the surface density of quasars near foreground galaxies [PDF]
, 1985 E. J. Zuiderwijk
openalex +1 more source
Using Convolutional Neural Networks to Search for Strongly Lensed Quasars in KiDS DR5
The Astrophysical JournalGravitationally strongly lensed quasars (SL-QSO) offer invaluable insights into cosmological and astrophysical phenomena. With the data from ongoing and next-generation surveys, thousands of SL-QSO systems can be discovered expectedly, leading to ...
Zizhao He +15 more
doaj +1 more source
Searching for Strong Gravitational Lenses
Space Science ReviewsAbstractStrong gravitational lenses provide unique laboratories for cosmological and astrophysical investigations, but they must first be discovered – a task that can be met with significant contamination by other astrophysical objects and asterisms.
Cameron Lemon +11 more
openaire +6 more sources
Natural wormholes as gravitational lenses
Physical Review D, 1995 4 pages; plus 4 figures; ReV_TeX 3.0; DOE/ER/40537-001/NPL94-07-01]
Robert L. Forward +5 more
openaire +4 more sources
Characterizing variations in the figured worlds of teachers and students in science class
Journal of Research in Science Teaching, EarlyView.Abstract This article explores the challenges of enacting reform‐oriented curriculum in science classrooms. We use the concept of figured worlds to analyze a case study of an eighth‐grade science class where the teacher reported that the students were resistant to changes she was trying to make.
Jessica L. Alzen +7 more
wiley +1 more source
Racket sociality: investigating intimidation in North India
Journal of the Royal Anthropological Institute, EarlyView.This article is an ethnographic investigation into acts of intimidation and threats. Theoretically, it dialogues with ‘racket’ – a key analytical term in the sociology of domination, state‐making, and mafias. The anthropology of power, violence, and crime has paid scant attention to the morphology of threats and the ways interpersonal intimidation ...
Lucia Michelutti
wiley +1 more source
Gravitational lensing in a cold dark matter universe [PDF]
, 1988 Ramesh Narayan, Simon D. M. White
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A Smithian Political Economy Approach for the Competition Law of the 21st Century
The Modern Law Review, EarlyView.This study aims to show how a Smithian political economy approach could assist competition law in addressing the challenges of the 21st‐century economy. We revisit Smith's Wealth of Nations to provide a more nuanced understanding of his views, contrasting them with the prevailing libertarian interpretation called here ‘Chicago Smith’.
Stavros Makris
wiley +1 more source
The British Journal of Sociology, EarlyView.ABSTRACT In 2023, China introduced regulatory amendments to birth certificates and the hukou (household registration) system, aiming to boost birth rates and offset an aging population. However, the implications of these changes on marriage and family support amidst population policy shifts remain underexplored.
Eileen Y. H. Tsang
wiley +1 more source
Quasar Microlensing Statistics and Flux-ratio Anomalies in Lens Models
The Astronomical JournalPrecise 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 +2 more
doaj +1 more source