Results 191 to 200 of about 59,945 (291)

Investigating the effects of gravitational lensing by Hu-Sawicki $$\varvec{f(R)}$$ f ( R ) gravity black holes

open access: yesEuropean Physical Journal C: Particles and Fields
In this work, gravitational lensing in the weak and strong field limits is investigated for black hole spacetime within the framework of Hu–Sawicki f(R) gravity. We employ the Ishihara et al.
Gayatri Mohan   +2 more
doaj   +1 more source

COSMOS 5921+0638: characterization and analysis of a new strong gravitationally lensed AGN [PDF]

open access: bronze, 2009
T. Anguita   +6 more
openalex   +1 more source

Open Innovation as an Adaptive Strategy in Mitigating the Challenges Posed by the Adoption of Digital Innovation and Big Data Analytics in SMEs

open access: yesR&D Management, EarlyView.
ABSTRACT Research on open innovation (OI) in SMEs, particularly in the context of digital innovations and big data (BD), often highlights the potential for these innovations to drive SME growth. While digital innovations and BD can indeed enhance OI practices by presenting new opportunities, there is a significant gap in understanding how the ...
Matthew Ayamga   +4 more
wiley   +1 more source

Tackling toxins: Case studies of industrial pollutants and implications for climate policy

open access: yesRegulation &Governance, Volume 19, Issue 2, Page 329-348, April 2025.
Abstract As scholars race to address the climate crisis, they have often treated the problem as sui generis and have only rarely sought to learn from prior efforts to make industrial operations greener. In this paper, we consider what can be learned from other shifts away from polluting substances.
Tim Bartley, Malcolm Fairbrother
wiley   +1 more source

On the inversion methods of strong gravitational lensing

open access: yes, 2007
In dieser Dissertation präsentiere ich eine neue Methode zur Inversion der Linsengleichung. Der präsentierte Algorithmus basiert auf dem Modifizierten Hausdorff- Abstand zwischen beobachteten und modell- erzeugten Bögen als eine Funktion der Fit-Güte.
openaire   +2 more sources

Embracing the politics of transformation: Policy action as “battle‐settlement events”

open access: yesReview of Policy Research, EarlyView.
Abstract Societal transformations for addressing climate change are intensely contested and at risk of resistance and backlash to ambitious policy action. But they are frequently modeled through heuristics such as S‐curves which abstract from such conflicts, assuming increasing returns to scale as a driver of transformations.
James Patterson, Matthew Paterson
wiley   +1 more source

Cosmography with strong lensing of LISA gravitational wave sources [PDF]

open access: green, 2011
M. Sereno   +3 more
openalex   +1 more source

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