Hagen Kleinert’s early interest in particle physics quantum field theory served him well for his subsequent researches on statistical physics and collective phenomena. Therefore, on the occasion of a significant birthday, I offer him this essay, in which particle physics concepts are blended into a field theory for macroscopic phenomena: Fluid mechanics is enhanced by anticommuting Grassmann va...

L’état actuel de nos recherches ne nous permet pas d’établir des liens très précis entre les gnostiques et Plotin avant que celui-ci quitte l’Égypte pour fonder son école à Rome – informations biographiques quarante années précédant cet événement demeurant effectivement fragmentaires –, mais savons toutefois le fondateur du néoplatonisme a assisté là-bas aux enseignements d’Ammonius Saccas.

the purpose of the present study was to compare writing high achievers and low achievers tefl (teaching english as foreign language) learners’ writing self-beliefs. subjects, based on their officially recorded scores on the writing course, were assigned in two 22-member groups of high and low achievers. the adapted english version of mills’ and péron’s (2008) questionnaire and the foreign langu...