Results 71 to 80 of about 283,922 (217)
Developmental Medicine &Child Neurology, EarlyView.Population: n = 21studies, 7299 infants Assessment: Hammersmith Infant Neurological Examination (HINE) Global Scores at 3 months (Corrected age), 6 months, 9 months, and 12 months. Crucial Finding: A HINE score <58 at 3 months predicts cerebral palsy (Sensitivity: 79.6%, Specificity: 88.7%).
Ting‐Ju Kuo +3 more
wiley +1 more source
Metrics of positive Ricci curvature on bundles [PDF]
, 2020 We construct new examples of manifolds of positive Ricci curvature which, topologically, are vector bundles over compact manifolds of almost nonnegative Ricci curvature.
Igor Belegradek, Guofang Wei
core
Isotropic Curvature and the Ricci Flow [PDF]
International Mathematics Research Notices, 2009 A compact Riemannian manifold of any dimension \(n\geq 4\), has nonnegative isotropic curvature if \[ \mathbb{K}(x,e_1,\dots, e_n):= R_{1313}+R_{1414}+R_{2323}+R_{2424}- 2R_{1234}\geq 0 \] holds for any orthonormal frame \(\{e_1, \dots ,e_n\}\). The author proves that the Ricci flow \(\frac{\partial}{\partial t}g_{ij}=-2R_{ij}\), preserves nonnegative ...
openaire +6 more sources
Machine Learning Model for Predicting Postoperative Pain in Cases of Irreversible Pulpitis
International 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
Mean Curvature Flow with a Neumann Boundary Condition in Flat Spaces [PDF]
, 2012 In this thesis I study mean curvature flow in both Euclidean and Minkowski space with a Neumann boundary condition. In Minkowski space I show that for a convex timelike cone boundary condition, with compatible spacelike initial data, mean curvature flow
LAMBERT, BENJAMIN,STEPHEN
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MathematicsIn this paper, we study the topology of steady gradient Ricci solitons with nonnegative sectional curvature. We apply a characterization theorem for the fundamental group of a positively curved steady gradient Ricci soliton that admits a critical point ...
Yuehan Hao
doaj +1 more source
The 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
Mathematical Control & Related Fields, 2013 29 pages, 1 ...
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Curvature cones and the Ricci flow. [PDF]
Séminaire de théorie spectrale et géométrie, 2014 This survey reviews some facts about nonnegativity conditions on the curvature tensor of a Riemannian manifold which are preserved by the action of the Ricci flow. The text focuses on two main points. First we describe the known examples of preserved curvature conditions and how they have been used to derive geometric results, in ...
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Hyperbolic Gradient-Bourgoignon Flow
پژوهشهای ریاضی, 2022 Introduction Ricci solitons as a generalization of Einstein manifolds introduced by Hamilton in mid 1980s. In the last two decades, a lot of researchers have been done on Ricci solitons.
Hamed Faraji +2 more
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