Results 61 to 70 of about 3,312 (222)

POSITIVITY OF RICCI CURVATURE UNDER THE KÄHLER–RICCI FLOW [PDF]

open access: yesCommunications in Contemporary Mathematics, 2006
In each complex dimension n ≥ 2, we construct complete Kähler manifolds of bounded curvature and non-negative Ricci curvature whose Kähler–Ricci evolutions immediately acquire Ricci curvature of mixed sign.
openaire   +2 more sources

Ricci flow and PIC1 [PDF]

open access: green, 2023
Peter M. Topping
openalex   +1 more source

Implementation of the ‘Countdown to Theatre’ Approach to Bridge the Evidence–Practice Gap in Paediatric Preoperative Fasting: A Quality Improvement Initiative

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aim To evaluate the ‘Countdown to Theatre’ intervention, a co‐designed nurse‐led approach developed using the COM‐B framework to address context‐specific barriers and facilitators to preoperative fasting practices. Design A prospective mixed‐method, pre–post study assessed the intervention's impact on fasting adherence and patient experience ...
Erika Dulay   +6 more
wiley   +1 more source

Navigating string theory field space with geometric flows

open access: yesJournal of High Energy Physics
The Swampland Distance Conjecture postulates the emergence of an infinite tower of massless states when approaching infinite-distance points in moduli space.
Saskia Demulder   +2 more
doaj   +1 more source

Eggs and Associated Nutrients: Implications for Brain Development and Function From Conception to Early Adulthood: A Narrative Review

open access: yesNutrition Bulletin, EarlyView.
ABSTRACT Brain development is an ongoing process that occurs throughout the first 1000 days of life (conception until 2 years) and proceeds throughout childhood, adolescence and up until early adulthood. Adequate nutrient intakes are crucial for both neurodevelopment inside the womb and critical life‐stages thereafter when the brain continues to grow ...
Emma J. Derbyshire
wiley   +1 more source

Mass Under the Ricci Flow

open access: yesCommunications in Mathematical Physics, 2007
In this paper, we study the change of the ADM mass of an ALE space along the Ricci flow. Thus we first show that the ALE property is preserved under the Ricci flow. Then, we show that the mass is invariant under the flow in dimension three (similar results hold in higher dimension with more assumptions).
Dai, Xianzhe, Ma, Li
openaire   +3 more sources

Psychological and Clinical Factors Mediate Post‐COVID‐19 Irritable Bowel Syndrome

open access: yesNeurogastroenterology &Motility, EarlyView.
ABSTRACT Background Exposure to COVID‐19 has been shown previously to be associated with a higher risk for irritable bowel syndrome (IBS). This study aimed to better explain this relationship using mediation analysis. Methods This post hoc analysis of a multicenter cohort study includes 623 patients with and without COVID‐19 infection. All participants
Keren Hod   +68 more
wiley   +1 more source

On classification of degenerate singular points of Ricci flows

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2015
We consider the normalized Ricci flow on generalized Wallach spaces that could be reduced to a system of nonlinear ODEs. As a main result we get the classification of degenerate singular points of the system under consideration in the important partial ...
N.А. Аbiev
doaj  

Transjugular Leadless Pacemaker Implantation in an Adolescent With Central Hypoventilation Syndrome: A Case Report

open access: yesPacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background Permanent pacing in pediatric patients is complicated by small body size, vascular access limitations, and the need for durable long‐term management. Leadless pacemakers offer an emerging alternative that minimizes infection and lead‐related complications, yet vascular access remains a key challenge in young patients.
Marzia Giaccardi   +4 more
wiley   +1 more source

Pluripotential Chern-Ricci flows

open access: yesIndiana University Mathematics Journal
Extending a recent theory developed on compact Kähler manifolds by Guedj-Lu-Zeriahi and the author, we define and study pluripotential solutions to degenerate parabolic complex Monge-Ampère equations on compact Hermitian manifolds. Under natural assumptions on the Cauchy boundary data, we show that the pluripotential solution is semi-concave in time ...
openaire   +4 more sources

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