Results 31 to 40 of about 1,071 (142)

The curvature of gradient Ricci solitons [PDF]

open access: yesMathematical Research Letters, 2011
We study integral and pointwise bounds on the curvature of gradient shrinking Ricci solitons. As applications we discuss gap and compactness results for gradient shrinkers.
Munteanu, Ovidiu, Wang, Mu-Tao
openaire   +2 more sources

Biodiversity‐driven spatial conservation planning to delineate temporally stable regions

open access: yesConservation Biology, EarlyView.
Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella   +5 more
wiley   +1 more source

ESG Thematic Bonds in Emerging Markets: Risk, Uncertainty, and Ambiguity

open access: yesEuropean Financial Management, EarlyView.
ABSTRACT We examine the impact of risk aversion, ambiguity, and uncertainty (geopolitical and economic) on the ESG thematic bond markets in emerging countries. We analyze ESG sovereign (both USD and local currency denominated) and corporate bond markets on the aggregate and regional levels.
Nebojsa Dimic   +3 more
wiley   +1 more source

Machine Learning Model for Predicting Postoperative Pain in Cases of Irreversible Pulpitis

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim Postoperative pain is a frequent clinical concern following endodontic treatment. This study aimed to develop and validate supervised machine learning models to predict the occurrence of postoperative pain in cases of irreversible pulpitis.
Pedro Felipe de Jesus Freitas   +9 more
wiley   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger   +4 more
wiley   +1 more source

Ricci curvatures in Carnot groups

open access: yesMathematical Control & Related Fields, 2013
29 pages, 1 ...
openaire   +3 more sources

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

Operando Structural Rearrangement of Self‐Ion‐Implanted Germanium Films Enables High‐Rate Cycling in Lithium‐Ion Batteries

open access: yesphysica status solidi (a), Volume 223, Issue 7, 7 April 2026.
Nanostructured germanium thin‐film negative electrodes are produced by combining PECVD deposition with self‐ion implantation, enabling battery fabrication fully compatible with semiconductor processing workflows and without material removal. The resulting porous structure dynamically rearranges during high‐rate cycling, leading to improved rate ...
Valentina Diolaiti   +13 more
wiley   +1 more source

Weak Ricci curvature bounds for Ricci shrinkers

open access: yes, 2011
a 2-page short ...
Chow, Bennett, Lu, Peng, Yang, Bo
openaire   +2 more sources

Curvature estimates for the Ricci flow I [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2007
In this paper we present several curvature estimates and convergence results for solutions of the Ricci flow. The curvature estimates depend on smallness of certain local space-time integrals of the norm of the Riemann curvature tensor, while the convergence results require finiteness of space-time integrals of the norm of the Riemann curvature tensor.
openaire   +5 more sources

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