Results 61 to 70 of about 28,894 (211)

On the possibility of a novel (A)dS/CFT relationship emerging in Asymptotic Safety

open access: yesJournal of High Energy Physics, 2022
Quantum Einstein Gravity (QEG), nonperturbatively renormalized by means of a certain asymptotically safe renormalization group (RG) trajectory, is explored by solving its scale dependent effective field equations and embedding the family of emerging 4 ...
Renata Ferrero, Martin Reuter
doaj   +1 more source

The K\"ahler-Ricci flow, Ricci-flat metrics and collapsing limits

open access: yes, 2017
We investigate the Kahler-Ricci flow on holomorphic fiber spaces whose generic fiber is a Calabi-Yau manifold. We establish uniform metric convergence to a metric on the base, away from the singular fibers, and show that the rescaled metrics on the ...
Tosatti, Valentino   +2 more
core   +1 more source

Machine Learning Approaches in Soft Matter Molecular Simulation and Materials Characterization: Challenges and Perspectives

open access: yesChemPlusChem, EarlyView.
Rigorous frameworks construction toward the development of science‐based machine learning (ML) schemes: invocation of statistical learning and data‐driven methods within the diverse materials science fields, from materials characterization to molecular modeling utilizing domain knowledge to facilitate fundamental understanding and scientific discovery.
Niki Vergadou, Vassilios Constantoudis
wiley   +1 more source

Digital Platforms for Sustainable Development: Unveiling the Psychology of Green Food Choices

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Digital platforms are reshaping consumer engagement with sustainable food, offering new cognitive, social, and technological contexts for green purchasing. This study explores the psychological mechanisms and social dynamics that drive green food purchase intentions in digital environments.
Serena Filippelli   +3 more
wiley   +1 more source

A study on W9-curvature tensor within the framework of Lorentzian para-Sasakian manifold

open access: yesExtracta Mathematicae
This article focuses on the study of Lorentzian para-Sasakian manifolds Mn . It demonstrates that a W9-semisymmetric Lorentzian para-Sasakian manifold is a W9-flat manifold.
G.P. Singh, S.S. Mishra, P. Sharma
doaj   +1 more source

Conformal invariance of (0, 2) sigma models on Calabi-Yau manifolds

open access: yesJournal of High Energy Physics, 2018
Long ago, Nemeschansky and Sen demonstrated that the Ricci-flat metric on a Calabi-Yau manifold could be corrected, order by order in perturbation theory, to produce a conformally invariant (2, 2) nonlinear sigma model.
Ian T. Jardine, Callum Quigley
doaj   +1 more source

On the geometry of generalized nonholonomic Kenmotsu manifolds

open access: yesДифференциальная геометрия многообразий фигур, 2022
The concept of a generalized nonholonomic Kenmotsu manifold is introduced. In contrast to the previously defined nonholonomic Kenmotsu manifold, the manifold studied in the article is an almost normal almost contact metric manifold of odd rank.
A.V. Bukusheva
doaj   +1 more source

MicroRNA profiling of testicular Leydig cell tumors identifies a microRNA signature associated with malignancy and miR‐196b‐5p as a potentially useful biomarker

open access: yesThe Journal of Pathology, EarlyView.
Abstract Approximately 10% of testicular Leydig cell tumors (LCTs) are clinically malignant and unresponsive to systemic treatment. Predicting their clinical behavior can be problematic because there are no biomarkers that can consistently discriminate between benign and malignant LCTs.
João Lobo   +22 more
wiley   +1 more source

On M-theory fourfold vacua with higher curvature terms

open access: yesPhysics Letters B, 2015
We study solutions to the eleven-dimensional supergravity action, including terms quartic and cubic in the Riemann curvature, that admit an eight-dimensional compact space.
Thomas W. Grimm   +2 more
doaj   +1 more source

Long way to Ricci flatness

open access: yesJournal of High Energy Physics, 2020
We study two-dimensional weighted N $$ \mathcal{N} $$ = (2) supersymmetric ℂℙ models with the goal of exploring their infrared (IR) limit. 𝕎ℂℙ(N, N ˜ $$ \tilde{N} $$ ) are simplified versions of world-sheet theories on non-Abelian strings in four ...
Jin Chen   +4 more
doaj   +1 more source

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