Results 111 to 120 of about 67,033 (286)

The Effect of Detector Nonlinearity on WFIRST PSF Profiles for Weak Gravitational Lensing Measurements [PDF]

, 2016
Weak gravitational lensing (WL) is one of the most powerful techniques to learn about the dark sector of the universe. To extract the WL signal from astronomical observations, galaxy shapes must be measured and corrected for the point-spread function ...
A. Plazas, Charles Shapiro, A. Kannawadi, R. Mandelbaum, J. Rhodes, Roger Smith   +5 more
semanticscholar   +1 more source

David Marsden's Comparative and Theoretical Craft: Signposts to a Better World of Work

British Journal of Industrial Relations, EarlyView.
ABSTRACT David Marsden enriched and extended the field of employment relations with his interdisciplinary and comparative practice. This introduction to the special issue honouring his work examines the nature of David's contribution and analyses his influence on employment relations and adjacent fields.
Sarah Ashwin, Rafael Gomez, Patrice Laroche   +2 more
wiley   +1 more source

Cosmology with Weak Lensing Surveys

, 2005
Weak gravitational lensing surveys measure the distortion of the image of distant sources due to the deflections of light rays by the fluctuations of the gravitational potential along the line of sight.
Bernardeau F, Bernardeau F, Bernardeau F, Bernardeau F, Bernstein G.M, Einstein A, Heavens A.F, Jarvis M, Kuijken K, Refregier A, Schneider P, Schneider P, Tyson J.A, van Waerbeke L, Wittman D.M   +14 more
core   +1 more source

Middle to Late Pleistocene landscape evolution and glacial dynamics in the Eastern Alps: the Gröbminger Mitterberg record, Austria

Boreas, EarlyView.
Glacial erosion during the Last Glacial Maximum (LGM) has removed much evidence of earlier glaciations and interglacials in the European Alps. At Gröbminger Mitterberg (GM), beneath a blanket of LGM till, a distinctive sediment archive preserves deposits predating the LGM.
Gerit E. U. Griesmeier, Daniel P. Le Heron, Christopher Lüthgens, Gustav Firla, Bernhard Salcher, Fabian Dremel, Jan‐Christoph Otto, Jürgen M. Reitner   +7 more
wiley   +1 more source

The weakly perturbed Schwarzschild lens in the strong deflection limit

, 2006
We investigate the strong deflection limit of gravitational lensing by a Schwarzschild black hole embedded in an external gravitational field. The study of this model, analogous to the Chang & Refsdal lens in the weak deflection limit, is important to ...
C. Darwin, K. Chang, M. Sereno, P. Schneider, S. Chandrasekhar, V. Bozza   +5 more
core   +1 more source

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

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

Unified Weak Lensing Constraints on the Evolution of the Mass–X-Ray Luminosity Relation for Galaxy Clusters

The Astrophysical Journal
Scaling relations between galaxy cluster properties are crucial for understanding cosmology and baryonic physics. Rigorous calibration of the M – L _X relation, employing weak lensing mass and consistent statistical methodology, is challenging due to ...
I. Pederneiras, A. Finoguenov, E. Cypriano, J. Comparat, K. Kiiveri, L. van Waerbeke, R. Dupke   +6 more
doaj   +1 more source

Weak Gravitational Lensing Shear Estimation with Metacalibration for the Roman High-Latitude Imaging Survey

, 2022
M. Yamamoto, Troxel, M. A., Mike Jarvis, Rachel Mandelbaum, Christopher M. Hirata, Heyang Long, A. Choi, Tianqing Zhang   +7 more
openalex   +1 more source

When Great Powers Struggle: How Geopolitical Alignments of Small States Are Influenced by Their MNEs

Journal of Management Studies, EarlyView.
Abstract Comparing two distinct deglobalization periods, this study shows how Finnish multinational enterprises (MNEs) used corporate diplomatic activities (CDA) to influence Finland's alignment with a struggling great power. Drawing from hegemonic stability theory and new institutional economics, we argue that the power's collapsing global networks ...
Saara Matala, Christian Stutz
wiley   +1 more source