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Stability and physical properties of spherical excited scalar boson stars

We study the time evolution of spherical, excited -- with $n$ radial nodes -- scalar boson stars in General Relativity minimally coupled to a complex massive scalar field with quartic self-interactions. We report that&#x...

Nitrogen-doped biochar-supported metal catalysts: high efficiency in both catalytic transfer hydrogenation of furfural and electrocatalytic oxygen reactions

The versatility of several N-doped biochar-supported metal catalysts (M/N-BioC) derived from vineyard pruning waste, to promote circular bioeconomy, was evaluated in catalytic transfer hydrogenation (CTH) of furfural (FF), electrocatalytic oxygen&...