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Haute Ecole pédagogique Fribourg

Des connaissances au passage à l’acte : les complexités de l’éducationau développement durable

Pellaud, Francine ; Gay, Philippe

In: Revue Francophone du Développement Durable, 2017, no. Hors-série no 5, p. 6-17

Les objectifs d’une éducation en vue d’un développement durable relèvent d’un niveau taxonomique élevé. Cette complexité cognitive est démultipliée par d’autres éléments complexes émanant de la psychologie des individus et de l’influence des rapports interpersonnels. Cet article est un essai visant à identifier l’ensemble de ces mécanismes.

Haute Ecole pédagogique Fribourg

Changements climatiques et transition énergétique : complexité, approche systémique et cartes conceptuelles

Pellaud, Francine

In: Revue francophone du développement durable, 2017, no. 9, p. 99-111

Où se situe la complexité dans notre quotidien, mais également dans les objectifs institutionnels de l’école obligatoire ? Quels sont les enjeux de cette appréhension / compréhension de la complexité ? La complexité se limite-t-elle à l’approche systémique ? Cette dernière suffit-elle à définir le développement durable (DD) et l’éducation en vue d’un développement...

Université de Fribourg

Fluid demixing kinetics on spherical geometry: power spectrum and Minkowski functional analysis

Böbel, A ; Bott, Matthias Christian ; Modest, H ; Brader, Joseph M. ; Räth, C

In: New Journal of Physics, 2019, vol. 21, no. 1, p. 013031

Dynamic density functional theory calculations of fluid–fluid demixing on spherical geometries are characterized via their angular power spectrum as well as via the Minkowski functionals (MFs) of their binarized fluid density fields. MFs form a complete set of additive, motion invariant and continuous morphological measures sensitive to nonlinear (spatial) correlations. The temporal...

Université de Fribourg

Antimicrobial Resistance in Escherichia coli

Poirel, Laurent ; Madec, Jean-Yves ; Lupo, Agnese ; Schink, Anne-Kathrin ; Kieffer, Nicolas ; Nordmann, Patrice ; Schwarz, Stefan

In: Microbiology Spectrum, 2018, vol. 6, no. 4, p. -

Multidrug resistance in Escherichia coli has become a worrying issue that is increasingly observed in human but also in veterinary medicine worldwide. E. coli is intrinsically susceptible to almost all clinically relevant antimicrobial agents, but this bacterial species has a great capacity to accumulate resistance genes, mostly through horizontal gene transfer. The most problematic...

Université de Fribourg

3D morphology of pharyngeal dentition of the genus Capoeta (Cyprinidae): Implications for taxonomy and phylogeny

Ayvazyan, Anna ; Vasilyan, Davit ; Böhme, Madelaine

In: Journal of Zoological Systematics and Evolutionary Research, 2019, vol. 57, no. 1, p. 179–190

Capoeta is a herbivorous cyprinid fish genus, widely distributed in water bodies of Western Asia. Recent species show a distinct biogeographic pattern with endemic distribution in large fluvial drainage basins. As other cyprinids, the species of this genus are characterized by the presence of the pharyngeal bone with pharyngeal teeth. Despite this, the detailed morphology of the pharyngeal...

Université de Fribourg

Nanoparticle administration method in cell culture alters particle-cell interaction

Moore, Thomas L. ; Urban, Dominic A. ; Rodriguez-Lorenzo, Laura ; Milosevic, Ana ; Crippa, Federica ; Spuch-Calvar, Miguel ; Balog, Sandor ; Rothen-Rutishauser, Barbara ; Lattuada, Marco ; Petri-Fink, Alke

In: Scientific Reports, 2019, vol. 9, no. 1, p. 900

As a highly interdisciplinary field, working with nanoparticles in a biomedical context requires a robust understanding of soft matter physics, colloidal behaviors, nano- characterization methods, biology, and bio-nano interactions. When reporting results, it can be easy to overlook simple, seemingly trivial experimental details. In this context, we set out to understand how in vitro...

Université de Fribourg

Time- and angle-resolved photoemission spectroscopy of solids in the extreme ultraviolet at 500 kHz repetition rate

Puppin, M. ; Deng, Y. ; Nicholson, C. W. ; Feldl, J. ; Schröter, N. B. M. ; Vita, H. ; Kirchmann, P. S. ; Monney, Claude ; Rettig, L. ; Wolf, M. ; Ernstorfer, R.

In: Review of Scientific Instruments, 2019, vol. 90, no. 2, p. 023104

Time- and angle-resolved photoemission spectroscopy (trARPES) employing a 500 kHz extreme-ultraviolet light source operating at 21.7 eV probe photon energy is reported. Based on a high-power ytterbium laser, optical parametric chirped pulse amplification, and ultraviolet-driven high-harmonic generation, the light source produces an isolated high-harmonic with 110 meV bandwidth and a flux of...