Affiner les résultats

Langue

Université de Fribourg

Henricus Totting de Oyta's and Nicole Oresme's Commentaries on Meteorology: Some New Identifications in Central and Eastern Europe

Panzica, Aurora

In: Bulletin de philosophie médiévale, 2020, vol. 62, p. 195-211

This article draws attention to two newly identified manuscipts transmitting Henricus Totting de Oyta’s Expositio in Meteorologica: ms. Praha, Národní Knihovna Ceské Republiky VIII.E.6 (olim 1531) and ms. Kraków, Uniwersytet Jagielloński, Biblioteka Jagiellońska 674. Interestingly, in the Cracovian manuscript Henricus’ Expositio is combined with the second redaction of Nicole Oresme’s...

Université de Fribourg

Nicole Oresme à la Faculté des Arts de Paris: Les Questions sur les Météorologiques

Panzica, Aurora

In: Archives d’histoire doctrinale et littéraire du Moyen Âge, 2017, vol. 84, p. 7–89

"Cet article porte sur les Questions sur les Météorologiques de Nicole Oresme, l'un des rares textes encore inédits de ce philosophe. Dans la première partie, il est question de la tradition manuscrite du commentaire d'Oresme, et en particulier de la découverte d'une autre rédaction, fort différente et antérieure à celle qui a été répertoriée. Dans un second temps, il s'agit de...

Université de Fribourg

Air and Friction in the Celestial Region: Some Medieval Solutions to the Difficulties of the Aristotelian Theory Con-cerning the Production of Celestial Heat

Panzica, Aurora

In: Early Medieval and Modern Science, 2019, vol. 24, no. 4, p. 367-390

This paper explores the medieval debates raised by problems with the Aristotelian theory of the pro-duction and transmission of solar heat presented in De Caelo II, 7 and Meteorologica I, 3. In these passages, Aristotle states that celestial heat is generated by the friction set up in the air by the motion of celestial bodies. This statement is difficult to reconcile with the Aristotelian...

Université de Fribourg

Synthesis of C 1- and C 3ν-symmetric porphyrin trimers based on triphenylmethane cores

Papamicaël, Cyril A. ; Mongin, Olivier ; Gossauer, Albert

In: Monatshefte für Chemie / Chemical Monthly, 2007, vol. 138, no. 8, p. 791-796

This work describes the synthesis of a new class of tripodaphyrin derivatives with a triphenylmethane core. Both C₁- and C3ν-symmetric tetrahedral large molecules with covalently linked rigid elements were obtained.

Université de Fribourg

Age-related decrease in motor cortical inhibition during standing under different sensory conditions

Papegaaij, Selma ; Taube, Wolfgang ; Hogenhout, Margot ; Baudry, Stéphane ; Hortobágyi, Tibor

In: Frontiers in Aging Neuroscience, 2014, vol. 6, p. 126

Background: Although recent studies point to the involvement of the primary motor cortex in postural control, it is unknown if age-related deterioration of postural control is associated with changes in motor cortical circuits. We examined the interaction between age and sensory condition in the excitability of intracortical motor pathways as indexed by short-interval intracortical inhibition...

Université de Fribourg

Aging causes a reorganization of cortical and spinal control of posture

Papegaaij, Selma ; Taube, Wolfgang ; Baudry, Stéphane ; Otten, Egbert ; Hortobágyi, Tibor

In: Frontiers in Aging Neuroscience, 2014, vol. 6, p. 28

Classical studies in animal preparations suggest a strong role for spinal control of posture. In humans it is now established that the cerebral cortex contributes to postural control of unperturbed and perturbed standing. The age-related degeneration and accompanying functional changes in the brain, reported so far mainly in conjunction with simple manual motor tasks, may also affect the...