Results 81 to 90 of about 6,452 (264)
Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement
Advanced Science, EarlyView.The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang +7 more
wiley +1 more source
Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses
Advanced Science, EarlyView.ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti +13 more
wiley +1 more source
Features of the partition function of a Λ > 0 universe
Journal of High Energy PhysicsWe consider properties of the gravitational path integral, $${\mathcal{Z}}_{\text{grav}}$$ , of a four-dimensional gravitational effective field theory with Λ > 0 at the quantum level.
Dionysios Anninos +3 more
doaj +1 more source
On the Weyl anomaly of 4D conformal higher spins: a holographic approach
Journal of High Energy Physics, 2017 We present a first attempt to derive the full (type-A and type-B) Weyl anomaly of four dimensional conformal higher spin (CHS) fields in a holographic way.
S. Acevedo +3 more
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Einstein Metrics on solvable groups
Mathematische Zeitschrift, 1991 We investigate when solvable Lie groups of a certain type do admit left invariant metrics with constant negative Ricci curvature. Our methods permit to construct a lot of new Einstein manifolds; some examples also have nonpositive sectional curvature.
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On static Poincaré-Einstein metrics [PDF]
Journal of High Energy Physics, 2015 Trivial correction to equation 2.1 (published version does not contain this correction)
Galloway, Gregory, Woolgar, Eric
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Lymphoid‐Tissue‐on‐Chip Recapitulates Human Antibody Responses In Vitro
Advanced Science, EarlyView.The presented lymphoid‐tissue‐on‐chip system allows culture of primary human tonsil cells at organotypic high density under perfusion for up to 4 weeks, emulates immune response to soluble vaccines and vaccination via peripheral antigen‐presenting cells and represents a useful tool to assess cellular interactions during homeostasis, immune responses ...
Claudia Teufel +15 more
wiley +1 more source
Einstein Gravity, Lagrange-Finsler Geometry, and Nonsymmetric Metrics
Symmetry, Integrability and Geometry: Methods and Applications, 2008 We formulate an approach to the geometry of Riemann-Cartan spaces provided with nonholonomic distributions defined by generic off-diagonal and nonsymmetric metrics inducing effective nonlinear and affine connections.
Sergiu I. Vacaru
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Isometry group of Sasaki–Einstein metric [PDF]
Comptes Rendus. Mathématique, 2013 In this short paper we prove a conjecture of Martelli–Sparks–Yau regarding the isometry group of a Sasaki–Einstein metric.
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Advanced Science, EarlyView.The 10B‐enriched monocarbonyl analog of curcumin (BMAC) 10B‐9 enables site‐specific Boron Neutron Capture Therapy (BNCT) on amyloid‐β (Aβ) fibrils. Neutron irradiation induces histidine oxidation and fibril destabilization, as revealed by 1H‐NMR and FESEM analyses.
Sebastiano Micocci +13 more
wiley +1 more source