Results 111 to 120 of about 1,064,480 (240)

Weak gravitational lensing with SKA

open access: yes, 1999
I shall outline the basic principles and some observational aspects of weak gravitational lensing, and discuss several applications of this powerful tool in observational cosmology. It will be explained why the applications have been restricted to optical observations up to now, and why SKA is going to change this. I conclude with a few general remarks
openaire   +2 more sources

Forecasts on the dark energy anisotropic stress for the esa euclid survey [PDF]

open access: yes
The cosmological constant Λ seems to be a not satisfactory explanation of the late-time accelerated expansion of the Universe, for which a number of experimental evidences exist; therefore, it has become necessary in the last years to consider ...
Fogli, Simone
core  

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

open access: yesJournal 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

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

open access: yesThe 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   +6 more
doaj   +1 more source

Exploring the Enigma of Particle Dynamics and Plasma Lensing Using Einstein–Euler–Heisenberg Black Hole Geometry

open access: yesUniverse
The unified Einstein–Euler–Heisenberg theory is utilized to investigate the particle motion and weak gravitational lensing characteristics of black holes.
Allah Ditta   +6 more
doaj   +1 more source

Shaping the System Through Turbulence: Strategic Leadership and the Micro‐Foundations of Ecosystem Orchestration in Times of Disruption

open access: yesJournal of Management Studies, EarlyView.
Abstract While research on ecosystems and their orchestration has grown rapidly, we still know little about how individual strategic leaders may mobilize ecosystemic action in times of disruption. This article addresses this gap by drawing on an in‐depth case study of the Antwerp Square Mile, the world’s oldest and most renowned diamond trading ...
Bart De Keyser, Koen Vandenbempt
wiley   +1 more source

Weak gravitational lensing in brane-worlds

open access: yes, 2006
7 pages, to appear in the Proceedings of the FIKUT4 Conference, Publications of the Astronomy Department of E\"{o}tv\"{o}s University, PADEU vol. 17 (2006)
Gergely, László Á., Darázs, Barbara
openaire   +2 more sources

Improving Precision in Kinematic Weak Lensing with MIRoRS: Model-independent Restoration of Reflection Symmetries

open access: yesThe Astrophysical Journal
We present a novel, model-independent technique for fitting the cross-component of weak lensing shear, γ _× , along a line of sight by combining kinematic and photometric measurements of a single lensed galaxy.
Christopher Hopp, David Wittman
doaj   +1 more source

Beyond the Management Gene: Rethinking and Advancing the Genetic Perspective in Management

open access: yesJournal of Management Studies, EarlyView.
Abstract Genetics has emerged as a promising avenue for explaining differences in management outcomes, attracting attention from leadership, entrepreneurship, and organizational behaviour scholars. Nonetheless, the field has faced scepticism and made only limited progress, stagnating in the pursuit of a so‐called ‘management gene’ (e.g., leadership ...
Ahmed Maged Nofal, Marcus Wolfe
wiley   +1 more source

Testing gravitational physics by combining DESI DR1 and weak lensing datasets using the E_G estimator

open access: yesThe Open Journal of Astrophysics
The action of gravitational physics across space-time creates observable signatures in the behaviour of light and matter. We perform combined-probe studies using data from the Baryon Oscillation Spectroscopic Survey (BOSS) and Dark Energy Spectroscopic ...
S. J. Rauhut   +63 more
doaj   +1 more source

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