The principal methods for the definition of thermodynamic entropy are discussed with special reference to those developed by Carathéodory, the Keenan School, Lieb and Yngvason, and the present authors. An improvement of the latter method is then presented. Seven basic axioms are employed: three Postulates, which are considered as having a quite general validity, and four Assumptions, which iden...

In Financial Mathematics the old problem of finding the price of derivatives (options, futures, etc.) leads to the study of Partial Differential Equations. The standard type of equations obtained are of parabolic type. In recent years, the complexity of the models used has increased and in turn this lead to more and more complicated equations for the derivative prices. Of particular interest in...

The notion of globalization is used in different contexts and in different meanings; the notion mixes fact and fiction – existent and non-existent. The notion of globalization refers to, for example, economic, political and cultural processes which exceed nation-state borders. There is no philosophical, i.e. conceptual foundation of globalization. Western philosophical metanarratives are interp...

Dans le roman québécois, les motifs de l’exil (volontaire ou forcé) et l’éloignement existent dans un continuum sociohistorique critique. Longtemps liés à l’identité, ils engageraient aujourd’hui des questionnements plus susceptibles transcender frontières culturelles sociales, quelque chose qui toucherait l’humain son essence, sa manière d’appréhender monde existence. C’est donc l’intention te...

The coronavirus pandemic is having an economic impact, previously non-existent, on the world economy. objective of this study to analyze impact COVID-19 agri-food companies in Autonomous Community Extremadura (Spain). A qualitative methodology used through interviews with 15 managers and a technology center for period February 2020 - January 2021. results reveal existence differentiated impacts...