Results 131 to 140 of about 46,248 (301)
International Journal of Modern Physics: Conference Series, 2013 Recent results in Local Regge Calculus are confronted with Spin Foam Formalism. Introducing Barrett-Crane Quantization in Local Regge Calculus makes it possible to associate a unique Spin jh with an hinge h, fulfilling one of the requirements of Spin Foam definition.
openaire +2 more sources
Advances and Outlook of Nickel‐Based MOFs–LDHs Materials for Energy Conversion
Advanced Sustainable Systems, EarlyView.In this graphical abstract, we present the pivotal gap between the activity and stability parameters as far as intergrated Ni‐based MOF/LDF electrocatalysts are concerned. For large scale application, these two parameters should be optimized and furthermore balanced in order to promote sustainable electrocatalytic hydrogen production.
Lincoln Einstein Kengne Fotso +4 more
wiley +1 more source
Journal of High Energy PhysicsRecent works by Chandrasekaran, Penington, and Witten have shown in various special contexts that the quantum-corrected Ryu-Takayanagi (RT) entropy (or its covariant Hubeny-Rangamani-Takayanagi (HRT) generalization) can be understood as computing an ...
Eugenia Colafranceschi +3 more
doaj +1 more source
Finite spin-foam-based theory of three- and four-dimensional quantum gravity [PDF]
, 2002 Rodolfo Gambini, Jorge Pullin
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Advanced Science, EarlyView.pMM‐PCL, made up of pretreated macrophage menbrane and polycaprolactone, boasts the adsorption of harmful myelin debris in the microenvironment of spinal cord injury. Abstract After spinal cord injury (SCI), a mass of myelin debris derived from injured myelin sheath will be consistently generated and induce macrophages to be foam cells.
Yuchen Zhou +7 more
wiley +1 more source
Living Reviews in Relativity, 2008 The problem of describing the quantum behavior of gravity, and thus understanding quantum spacetime, is still open. Loop quantum gravity is a well-developed approach to this problem. It is a mathematically well-defined background-independent quantization
Rovelli Carlo
doaj
2-vertex Lorentzian Spin Foam Amplitudes for Dipole Transitions
, 2018 We compute transition amplitudes between two spin networks with dipole graphs, using the Lorentzian EPRL model with up to two (non-simplicial) vertices. We find power-law decreasing amplitudes in the large spin limit, decreasing faster as the complexity ...
Sarno, Giorgio +2 more
core +2 more sources
Genetic Impacts on the Structure and Mechanics of Cellulose Made by Bacteria
Advanced Science, EarlyView.A genetic mutation in a protease of a cellulose‐overproducing evolved bacterium significantly affects the proteome, structure, and mechanical properties of bio‐fabricated cellulose pellicles. By overexpressing synthase proteins that build the cellulose‐forming biological machinery of the cell, the evolved bacterium generates dense, stiff, and strong ...
Julie M. Laurent +8 more
wiley +1 more source
Advanced Science, EarlyView.In order to take full advantage of the porous structure generated by phase separation, a bidirectional phase separation spinning method is proposed. The method enables continuous and rapid preparation of aerogel fibers without energy‐intensive additional steps, which significantly reduces energy consumption and processing time, and positions aerogel ...
Jiaxin Shen +6 more
wiley +1 more source