Results 91 to 100 of about 261,108 (323)
A Case of Type II Achalasia Occurring in a Nonagenarian Diagnosed with Acute Food Impaction
The Korean Journal of GastroenterologyAchalasia is an esophageal motility disorder characterized by loss of esophageal peristalsis and impaired relaxation of the lower esophageal sphincter. Patients with achalasia often complain of persistent symptoms for several years before diagnosis.
Seong Hyun Koh +6 more
doaj +1 more source
Advanced Materials, EarlyView.Strategies achieving high‐energy‐density aqueous zinc‐ion batteries are summarized and analyzed from both their separate advancements and the integrated effectiveness in this review. Then, perspectives are given for valuable guidance for further development of high‐energy‐density aqueous zinc‐ion batteries.
Mingcong Tang +4 more
wiley +1 more source
From Stinespring dilation to Sz.-Nagy dilation on the symmetrized bidisc and operator models [PDF]
New York Journal of Mathematics, 20 (2014), 645-664, 2013 We provide an explicit normal distinguished boundary dilation to a pair of commuting operators $(S,P)$ having the closed symmetrized bidisc $\Gamma$ as a spectral set. This is called Sz.-Nagy dilation of $(S,P)$. The operator pair that dilates $(S,P)$ is obtained by an application of Stinespring dilation of $(S,P)$ given by Agler and Young.
arxiv
Ionic Liquid‐Reinforced Multifunctional Hydrogel for the Treatment of Enterocutaneous Fistula
Advanced Materials, EarlyView.ECFGel is a multifunctional hydrogel engineered to treat infection‐associated ECFs. ECFGel demonstrates outstanding mechanical and biological properties, facilitating easy application, reliable occlusion, and sterilization, while promoting effective healing of infected fistula tracts.
Jinjoo Kim +7 more
wiley +1 more source
Minimal Cuntz-Krieger Dilations and Representations of Cuntz-Krieger Algebras [PDF]
arXiv, 2005 Given a contractive tuple of Hilbert space operators satisfying certain $A$-relations we show that there exists a unique minimal dilation to generators of Cuntz-Krieger algebras or its extension by compact operators. This Cuntz-Krieger dilation can be obtained from the classical minimal isometric dilation as a certain maximal $A$-relation piece.
arxiv
Combinatorics, Probability and Computing, 2008 The lambda-dilate of a set A is lambda*A={lambda a : a \in A}. We give an asymptotically sharp lower bound on the size of sumsets of the form lambda_1*A+...+lambda_k*A for arbitrary integers lambda_1,...,lambda_k and integer sets A. We also establish an upper bound for such sums, which is similar to, but often stronger than Plunnecke's inequality.
openaire +2 more sources
Progress and Application of Multifunctional Hydrogel in Radioactive Skin Injury
Advanced Materials Interfaces, EarlyView.This review examines healing challenges in radiation‐wound injuries, where ionizing radiation impairs immune and tissue repair processes. Hydrogels, with their biocompatibility, antimicrobial properties, and drug delivery capabilities, present a transformative solution. It compares hydrogel efficacy in radiation‐induced versus common wounds, highlights
Xinyue Cui +5 more
wiley +1 more source
Zaporožskij Medicinskij Žurnal, 2019 Heart failure (HF) is an important issue in cardiology. Some patients with HF have the low T3 syndrome (LT3S). There is no consensus regarding the criteria for determining LT3S.
S. M. Pyvovar +4 more
doaj +1 more source
Isometric Dilations of Representations of Product Systems via Commutants [PDF]
Int. J. Math. 19 (521-539) 2008, 2006 We construct a weak dilation of a not necessarily unital CP-semigroup to an E-semigroup acting on the adjointable operators of a Hilbert module with a unit vector. We construct the dilation in such a way that the dilating E-semigroup has a pre-assigned product system.
arxiv
Advanced Materials Technologies, EarlyView.This study presents a microfluidic wet spinning technique for producing ultrathin, templated collagen sheets with hierarchical organization at the microscale. The aligned collagen sheets replicate strain‐stiffening behavior associated with native cardiovascular tissues, sup cell attachment and contraction, and enable biofabrication of load‐bearing ...
Yuming Zhang +6 more
wiley +1 more source