Results 81 to 90 of about 5,224,338 (238)

Management of ring chromosome 20 syndrome: Narrative review and consensus recommendations

Epilepsia, EarlyView.
Abstract Ring chromosome 20 (ring 20) is a rare genetic condition usually presenting as developmental and epileptic encephalopathy. The disease is caused by fusion of the long and short arms of chromosome 20. Patients are symptomatic even if there is no loss of genetic material.
Asma Khamis, Emilia Ricci, Maria Paola Canevini, Lieven Lagae, Kentaro Tokumoto, Yushi Inoue, Tim Buckinx, Allison Watson, Kenneth A. Myers   +8 more
wiley   +1 more source

Ricci Flow and Volume Renormalizability [PDF]

Symmetry, Integrability and Geometry: Methods and Applications, 2019
With respect to any special boundary defining function, a conformally compact asymptotically hyperbolic metric has an asymptotic expansion near its conformal infinity. If this expansion is even to a certain order and satisfies one extra condition, then it is possible to define its renormalized volume and show that it is independent of choices that ...
Bahuaud, E., Mazzeo, R., Woolgar, E.
openaire   +3 more sources

On the Topological Classification of Four-Dimensional Steady Gradient Ricci Solitons with Nonnegative Sectional Curvature

Mathematics
In 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

Topological Signals of Singularities in Ricci Flow

Axioms, 2017
We implement methods from computational homology to obtain a topological signal of singularity formation in a selection of geometries evolved numerically by Ricci flow.
Paul M. Alsing, Howard A. Blair, Matthew Corne, Gordon Jones, Warner A. Miller, Konstantin Mischaikow, Vidit Nanda   +6 more
doaj   +1 more source

Propagation of symmetries for Ricci shrinkers

Advanced Nonlinear Studies, 2023
We will show that if a gradient shrinking Ricci soliton has an approximate symmetry on one scale, this symmetry propagates to larger scales. This is an example of the shrinker principle which roughly states that information radiates outwards for ...
Colding Tobias Holck, Minicozzi II William P.   +1 more
doaj   +1 more source

Reinterpreting the Local Context in Development Projects Through the Lens of Positive Thinking

New Directions for Evaluation, EarlyView.
ABSTRACT The increasing complexity of the international development cooperation system necessitates the strengthening of the evaluative function as a means of facilitating learning. Despite the growing global focus on these issues, evaluation practices within the field of development often appear to struggle in serving as an effective tool for drawing ...
Laura Fantini
wiley   +1 more source

Maternal and infant gut microbiome

iMeta, EarlyView.
The maternal–infant continuum involves critical windows of host–microbiota co‐adaptation. Preconception, maternal and paternal microbiomes modulate immunity and reproduction. During pregnancy, a gut–placenta axis emerges, where microbial metabolites influence fetal growth or contribute to complications like gestational diabetes mellitus (GDM ...
Huidi Wang, Felicia Tin, Hui Chen, Fuxin Jiao, Min Wu, Shanshan Sun, Lisha Lin, Die Li, Huimin Zheng, Zhenxin Niu, Mengyao Lan, Bahtiyar Yilmaz, Johan G. Eriksson, Mengjia Wang, Andrew Macpherson, Jose C. Clemente, Jia Xu, Ri‐hua Xie, Xiaojiao Zheng, Tao Zhou, Jinfeng Wang, Wei Shen, Bing Huang, Xia Chen, Hai Li, Yan He   +25 more
wiley   +1 more source

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

Communications 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

Synthesis and Characterization of Juglone‐Derived cu (II), Mn (II) and Zn (II) Complexes and Investigation of Their Cytotoxic Activities Against Lung and Colon Cancer Cells in Vitro and in Silico

Journal of Applied Toxicology, EarlyView.
ABSTRACT Three new Zn (II), Cu (II) and Mn (II) complexes have been synthesized from 5‐hydroxy‐1,4‐naphthoquinone (HNQ). Elemental analysis, magnetic susceptibility, UV–Vis, IR and Mass spectrometry have all been used to explore the structural characterization of these compounds.
Mustafa Öztatlıcı, Turan Birimoğlu, Semih Güler, Rukiye Betül Çolaksel, Mehmet Tahir Husunet, Mehmet Sönmez   +5 more
wiley   +1 more source

CHARGE Syndrome: What an Otolaryngologist Should Know—A Systematic Review and Meta‐Analysis

Otolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To synthesize the prevalence of otolaryngologic manifestations in CHARGE syndrome (CS) to support otolaryngologists in delivering comprehensive management. Data Sources PubMed/MEDLINE, Embase, and Google Scholar were searched for English‐ and French‐language studies published from January 1980 through January 2025.
Camille Caron, Massil Badji, Camille Prigent, Alix Pincivy, Erika Mercier, Mathieu Bergeron   +5 more
wiley   +1 more source