Results 81 to 90 of about 6,234 (203)

Deformation classes in generalized Kähler geometry

Complex Manifolds, 2020
We describe natural deformation classes of generalized Kähler structures using the Courant symmetry group, which determine natural extensions of the notions of Kähler class and Kähler cone to generalized Kähler geometry.
Gibson Matthew, Streets Jeffrey
doaj   +1 more source

Endoscopic Ultrasound for the Management of Pancreatic Neuroendocrine Tumors: Diagnosis, Treatment, and Future Perspectives

Journal of Gastroenterology and Hepatology, EarlyView.
ABSTRACT Pancreatic neuroendocrine tumors (PanNETs) are increasingly diagnosed, reflecting greater clinical awareness, improved imaging, and revised classification. This review summarizes evidence on epidemiology, diagnostic workup, and endoscopic ultrasound (EUS)–guided management of PanNETs, encompassing diagnostic evaluation, tissue acquisition, and
Angelo Bruni, David Meacci, Roberto Falbo, Marco Fichera, Francesco Poggioli, Riccardo Casadei, Claudio Ricci, Leonardo Henry Eusebi   +7 more
wiley   +1 more source

Mass Under the Ricci Flow

Communications 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

Neurogastroenterology &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, Giovanni Marasco, Luigi Colecchia, Cesare Cremon, Maria Raffaella Barbaro, Giulia Cacciari, Francesca Falangone, Anna Kagramanova, Dmitry Bordin, Vasile Drug, Egidia Miftode, Pietro Fusaroli, Salem Youssef Mohamed, Chiara Ricci, Massimo Bellini, M. Masudur Rahman, Luigi Melcarne, Javier Santos, Beatriz Lobo, Serhat Bor, Suna Yapali, Deniz Akyol, Ferdane Pirincci Sapmaz, Yonca Yilmaz Urun, Tugce Eskazan, Altay Celebi, Huseyin Kacmaz, Berat Ebik, Hatice Cilem Binicier, Mehmet Sait Bugdayci, Munkhtsetseg Banzragch Yağcı, Husnu Pullukcu, Berrin Yalınbas Kaya, Ali Tureyen, İbrahim Hatemi, Elif Sitre Koc, Goktug Sirin, Ali Riza Calıskan, Goksel Bengi, Esra Ergun Alıs, Snezana Lukic, Meri Trajkovska, Dan Dumitrascu, Antonello Pietrangelo, Elena Corradini, Magnus Simren, Jessica Sjolund, Navkiran Tornkvist, Uday C. Ghoshal, Olga Kolokolnikova, Antonio Colecchia, Jordi Serra, Giovanni Maconi, Roberto De Giorgio, Silvio Danese, Piero Portincasa, Antonio Di Sabatino, Marcello Maggio, Elena Philippou, Yeong Yeh Lee, Daniele Salvi, Alessandro Venturi, Claudio Borghi, Marco Zoli, Paolo Gionchetti, Pierluigi Viale, Vincenzo Stanghellini, Giovanni Barbara, on behalf of GI‐COVID19 study group   +68 more
wiley   +1 more source

Geometric Classifications of Perfect Fluid Space-Time Admit Conformal Ricci-Bourguignon Solitons

Journal of Mathematics
This paper is dedicated to the study of the geometric composition of a perfect fluid space-time with a conformal Ricci-Bourguignon soliton, which is the extended version of the soliton to the Ricci-Bourguignon flow.
Noura Alhouiti, Soumendu Roy, Santu Dey, Fatemah Mofarreh, Akram Ali, Yanlin Li   +5 more
doaj   +1 more source

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

Pacing 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, Gulio Porcedda, Zaccaria Ricci, Hendrik Bonnemeier, Benito Baldauf   +4 more
wiley   +1 more source

Charting cellular differentiation trajectories with Ricci flow

Nature Communications
Complex biological processes, such as cellular differentiation, require intricate rewiring of intra-cellular signalling networks. Previous characterisations revealed a raised network entropy underlies less differentiated and malignant cell states.
Anthony Baptista, Ben D. MacArthur, Christopher R. S. Banerji   +2 more
doaj   +1 more source

Gauge fields in a string-cigar braneworld

Physics Letters B, 2015
In this work, we investigate the properties of the Abelian gauge vector field in the background of a string-cigar braneworld. Both the thin and thick brane limits are considered.
F.W.V. Costa, J.E.G. Silva, D.F.S. Veras, C.A.S. Almeida   +3 more
doaj   +1 more source

Pluripotential Chern-Ricci flows

Indiana 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

Regularising the Ricci Flow Embedding [PDF]

, 2010
This paper concerns the analysis of patterns that are specified in terms of non-Euclidean dissimilarity or proximity rather than ordinal values. In prior work we have reported a means of correcting or rectifying the similarities so that the non-Euclidean artifacts are minimized.
Xu W., Hancock E.R., Wilson R.C.
openaire   +1 more source