Referring to materials from the Russian State Historical Archive and Central of St Petersburg, this article investigates mechanisms competition resolving conflicts between tradesmen in Petersburg level German masters’ adaptation a new cultural social environment. It reveals an opportunity reach deeper understanding bread production capital over long period time. Competitive confrontations guild...

Abstract Introduction The African Copperbelt is a site of intense artisanal and industrial mining refining copper cobalt. Based on preliminary case-control study erectile dysfunction among mineworkers in the former Katanga province Democratic Republic Congo (Musa et al. Occupational Environmental Medicine 2020), Objective We further investigated possible factors associated with cobalt miners pr...