Results 71 to 80 of about 294,506 (220)

Generative AI‐Driven Supply Chain Digital Innovation: Enabling Integration, Resilience, and Sustainable Business Value Creation

open access: yesSustainable Development, EarlyView.
ABSTRACT In today's volatile, uncertain, complex, and ambiguous (VUCA) business environment, organizations face mounting pressure to develop agile and resilient supply chains capable of withstanding increasingly frequent disruptions. At the same time, sustainability has evolved into a strategic necessity, requiring firms to balance competitiveness with
Arsalan Zahid Piprani   +4 more
wiley   +1 more source

Eternal Inflation: Prohibited by Quantum Gravity?

open access: yes, 2008
We investigate how eternal inflation is affected by quantum gravity effects. We consider general features of quantum gravity, such as renormalizability, complementarity, minimal length, definition of observables, and weak gravity conjecture.
Wang, Yi
core   +1 more source

Hubble selection of the weak scale from QCD quantum critical point

open access: yesPhysical Review Research, 2022
There is growing evidence that the small weak scale may be related to self-organized criticality. In this regard, we note that if the strange quark were lighter, the QCD phase transition could have been first order, possibly exhibiting quantum critical ...
Sunghoon Jung, TaeHun Kim
doaj   +1 more source

Steady-state eternal inflation

open access: yesPhysical Review D, 2002
Since the advent of inflation, several theorems have been proven suggesting that although inflation can (and generically does) continue eternally into the future, it cannot be extended eternally into the past to create a ``steady-state'' model with no initial time.
Aguirre, Anthony, Gratton, Steven
openaire   +2 more sources

Better on Average? Average Inflation Targeting With an Unclear Averaging Window

open access: yesSouthern Economic Journal, EarlyView.
ABSTRACT Average inflation targeting (AIT) aims to stabilize inflation expectations by offsetting past deviations from target. However, ambiguity about the averaging window can complicate expectations formation and reduce policy effectiveness. This paper integrates AIT into a benchmark DSGE model, incorporating adaptive learning and a signal extraction
James Dean
wiley   +1 more source

Supersymmetric Dirac-Born-Infeld axionic inflation and non-Gaussianity

open access: yesJournal of High Energy Physics, 2019
An analysis is given of inflation based on a supersymmetric Dirac-Born-Infeld (DBI) action in an axionic landscape. The DBI model we discuss involves a landscape of chiral superfields with one U(1) shift symmetry which is broken by instanton type non ...
Pran Nath, Maksim Piskunov
doaj   +1 more source

Data privacy model using blockchain reinforcement federated learning approach for scalable internet of medical things

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
Abstract Internet of Medical Things (IoMT) has typical advancements in the healthcare sector with rapid potential proof for decentralised communication systems that have been applied for collecting and monitoring COVID‐19 patient data. Machine Learning algorithms typically use the risk score of each patient based on risk factors, which could help ...
Chandramohan Dhasaratha   +9 more
wiley   +1 more source

Dimensional reduction and (Anti) de Sitter bounds

open access: yesJournal of High Energy Physics, 2021
Dimensional reduction has proven to be a surprisingly powerful tool for delineating the boundary between the string landscape and the swampland. Bounds from the Weak Gravity Conjecture and the Repulsive Force Conjecture, for instance, are exactly ...
Tom Rudelius
doaj   +1 more source

Eternal inflation and the initial singularity [PDF]

open access: yesPhysical Review Letters, 1994
It is shown that a physically reasonable spacetime that is eternally inflating to the future must possess an initial singularity.
Borde, Arvind, Vilenkin, Alexander
openaire   +3 more sources

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