Results 51 to 60 of about 1,034 (248)
Advanced Science, EarlyView.This review identifies current and future directions in abiotic nanostructured catalysts to develop reliable and sustainable glucose fuel cells to power the next generation of bioelectronic devices. ABSTRACT The global rise in incidence of chronic diseases has led to the demand for innovative solutions that help patients manage their conditions with ...
Asghar Niyazi +3 more
wiley +1 more source
The logarithmic spiral: a counterexample to the K = 2 conjecture
Annals of Mathematics, 2005 Let \(\Omega\) be an open simply connected subset of the complex plane \({\mathbb C}\) with \(\Omega\not={\mathbb C}\), let \(X=S^2\setminus \Omega\) be the complement of \(\Omega\) in the Riemann sphere \(S^2\) and let \({\mathcal {CH}}(X)\) be the hyperbolic convex hull of \(X\) in hyperbolic 3-space \({\mathbb H}^3\).
Epstein, D. B. A., Markovic, V.
openaire +2 more sources
IEEE AccessThis paper introduces a novel ultrathin frequency selective surface (FSS) based on interconnected logarithmic spiral geometries. The structure is fabricated on a flexible polyimide substrate with a thickness of 0.05 mm, a relative permittivity of 4.3 ...
Maciel Alves de Oliveira +5 more
doaj +1 more source
Rat chimera cornea patch edges fit loxodromal spirals and a comparison with logarithmic spirals.
, 2012 (A) A confocal image of a chimeric rat cornea was overlaid with spiral curves, shown in bright purple. Lines connecting the points were drawn in to illustrate the full curve. The white point marks the center of the calculated spirals.
Gabriel Landini (25430) +5 more
core +1 more source
Advanced Science, EarlyView.This study developed a double‐network hydrogel with piezoelectric properties, exhibiting excellent antibacterial activity and promoting fibroblast migration, angiogenesis, and lymphangiogenesis through piezoelectric stimulation, thereby accelerating the healing of infected chronic wounds.
Xiang Li +7 more
wiley +1 more source
Logarithmic spiral trajectories generated by Solar sails
Celestial Mechanics and Dynamical Astronomy, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bassetto M +3 more
openaire +3 more sources
, 2023 A dynamical study of small vibrations of an annular system made of an orthogonal network of fibers around the undeformed configuration is performed. Logarithmic spirals characterize the net of fibers connected by deformable cylinders.
dell'Isola F. +4 more
core +1 more source
Advanced Science, EarlyView.Multidrug‐resistant Vibrio infections are rising rapidly and threaten coastal populations worldwide. This study introduces D‐zp37, a chirality‐engineered antimicrobial peptide with exceptional potency against resistant Vibrio species. D‐zp37 kills planktonic cells, blocks mixed‐species biofilms, disrupts essential bacterial stress responses, and shows ...
Ping Zeng +11 more
wiley +1 more source
Curves in Archeology: Computing the Volume of a Greek Vase
MetrologyThe concept of dynamic symmetry in art and extensive measurements on Greek vases suggest that a vase and its parts can be inscribed into similar rectangles, with all rectangles having the same ratio of lengths of their side.
Siddhant Shah +2 more
doaj +1 more source