Results 101 to 110 of about 48,912 (312)
Mineralized Cryogel/Hydrogel Constructs to Recapitulate Early Breast Cancer Bone Metastasis In Vitro
Advanced Science, EarlyView.A new biphasic in vitro cryogel/hydrogel model of early breast cancer bone metastasis provides precise control over microenvironmental cues and microscopic access to the spatiotemporal cancer cell distribution. Deposited bone‐like mineral is observed to strongly impede the effects of biomolecular signals, as evidenced by both colonization profiles and ...
Jana Sievers‐Liebschner +8 more
wiley +1 more source
Cation‐Driven Valence Change Mechanism in 2D AgCrS2 for Ultralow‐Power and Reliable Memristors
Advanced Science, EarlyView.A 2D AgCrS2 volatile memristor is shown to switch via a cation‐driven valence change mechanism, where Ag+ reversibly intercalates into tetrahedral vacancies between CrS2 layers to form a conductive Ag2CrS2 pathway without elemental Ag metallization. The device exhibits 0.2 V switching, nA‐compliance power down to 200 pW, and endurance beyond 3 × 105 ...
Yueqi Su +8 more
wiley +1 more source
Inherently Disordered Auxetic Metamaterials
Advanced Science, EarlyView.Inherently disordered auxetic metamaterials based on random chiral Delaunay triangulations are designed and investigated using numerical simulations and experimental tests. These disordered frameworks exhibit orthotropic behavior and a large negative Poisson's ratio (ca.
Matteo Montanari +3 more
wiley +1 more source
C-connected frame congruences [PDF]
Categories and General Algebraic Structures with Applications, 2017 We discuss the congruences θ that are connected as elements of the (totally disconnected) congruence frame \CFL, and show that they are in a one-to-one correspondence with the completely prime elements of L, giving an explicit formula.
Dharmanand Baboolal +2 more
doaj +1 more source
Null Geodesic Congruences, Asymptotically-Flat Spacetimes and Their Physical Interpretation
Living Reviews in Relativity, 2009 A priori, there is nothing very special about shear-free or asymptotically shear-free null geodesic congruences. Surprisingly, however, they turn out to possess a large number of fascinating geometric properties and to be closely related, in the context ...
Timothy M. Adamo +2 more
doaj
Advanced Science, EarlyView.A neural network‐enabled permittivity engineering paradigm is introduced, transcending traditional trial‐and‐error design. By decoupling electromagnetic parameters and screening a high‐throughput feature space, an ultrathin (1.0 mm) magnetic absorber is inversely designed, experimentally achieving a superior and customizable 5.1 GHz bandwidth and ...
Chenxi Liu +9 more
wiley +1 more source
The number of solutions of a homogeneous linear congruence [PDF]
, 2012 Karol Cwalina, Tomasz Schoen
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Effect of Regiochemistry on Doping and Thermoelectric Properties of n‐Doped Fullerene Derivatives
Advanced Electronic Materials, EarlyView.Three fullerene derivatives doubly substituted with diethylene glycol chains (PDEG‐2) is presented. The different regiochemistry significantly affects the crystallinity and consequently the dielectric properties, electronic transport, and doping efficiency. By striking a balance between compatibility with the molecular dopant N‐DMBI and crystallinity a
Federico Ferrari +7 more
wiley +1 more source
Raychaudhuri equation with zero point length
Physics Letters B, 2019 The Raychaudhuri equation for a geodesic congruence in the presence of a zero-point length has been investigated. This is directly related to the small-scale structure of spacetime and possibly captures some quantum gravity effects. The existence of such
Sumanta Chakraborty +2 more
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$X^m$ is homeomorphic to $X^n$ iff m ~ n where ~ is a congruence on natural numbers [PDF]
, 1973 Věra Trnková
openalex +1 more source