Marine micro-oxic to sulfidic environments are sites of intensive biogeochemical cycling and elemental sequestration, where prokaryotes are major driving forces mediating carbon, nitrogen, sulfur, phosphorus, and metal cycles, important from both biogeochemical and evolutionary perspectives. Associations between single-celled eukaryotes and bacteria and/or archaea are common in such habitats. H...

This is an overview of the problem of the vacuum in light-cone eld theory, stressing its close connection to other puzzles regarding light-cone quantization. I explain the sense in which the light-cone vacuum is \trivial," and describe a way of setting up a quantum eld theory on null planes so that it is equivalent to the usual equal-time formulation. This construction is quite helpful in resol...

The article focusses on the manuscript stored in Leiden as a witness of Russian-German linguistic, cultural, and pedagogical transfer. consists three parts contains "linguistic" introduction, full text Orbis Pictus by Jan Comenius two languages, German-Russian dictionary. authors systematized results previous studies foreign Slavists, put forward substantiated their own assumptions about its or...

In this work we investigate the possible job-creation impact of artificial intelligence (AI) technologies, focusing on supply side, where development these technologies can be conceived as product innovations in upstream sectors. The empirical analysis is based a worldwide longitudinal sample (obtained by merging EPO PATSTAT and BvD-ORBIS databases) more than 3,500 front-runner companies that p...