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Université de Neuchâtel

Effect of organic carbon and metal accumulation on the bacterial communities in sulphidogenic sediments

Bueche, Matthieu ; Junier, Pilar

In: Environmental Science and Pollution Research, 2016, vol. 23, no. 11, p. 10443–10456

A unique geochemical setting in Lake Cadagno, Switzerland, has led to the accumulation of insoluble metal sulphides in the sedimentary record as the result of past airborne pollution. This offers an exceptional opportunity to study the effect of these metals on the bacterial communities in sediments, and in particular to investigate further the link between metal contamination and an increase in...

Université de Fribourg

Schlussbericht zum Projekt ‚Ergebnisbezogene Evaluation des Französischunterrichts in der 6. Klasse (HarmoS 8) in den sechs Passepartout-Kantonen‘ : durchgeführt von Juni 2015 bis März 2019 am Institut für Mehrsprachigkeit der Universität und der Pädagogischen Hochschule Freiburg im Auftrag der Passepartout-Kantone

Wiedenkeller, Eva ; Lenz, Peter ; Studer, Thomas

In den Kantonen BS und SO sowie in den deutschsprachigen Teilen der Kantone BE, FR und VS wird seit dem Schuljahr 2011/12, im Kanton BL seit dem Schuljahr 2012/13, Französisch als erste Fremdsprache ab der 5. Klasse (Zählung nach HarmoS) nach dem Passepartout-Lehrplan bzw. nach einem gemeinsamen Konzept und mit einem gemeinsamen Lehrmittel unterrichtet. Die Ziele, Inhalte und der Aufbau des...

Muséum d'histoire naturelle

Histoire naturelle des poissons du bassin du Léman

Lunel, Godefroy ; Lunel, Alphonse

Genève ; Bâle : Georg, 1874

Volume comprenant uniquement les dessins originaux d'Alphonse Lunel

(Association zoologique du Léman ; [année 1874])

Analyse : Ouvrage dont la valeur inestimable est due aux 20 aquarelles d'Alphonse Lunel. Elles représentent les 20 espèces les plus importantes de poissons du Léman.

Université de Fribourg

Terahertz-driven phonon upconversion in SrTiO 3

Kozina, M. ; Fechner, M. ; Marsik, Premysl ; Driel, T. van ; Glownia, J. M. ; Bernhard, Christian ; Radovic, M. ; Zhu, D. ; Bonetti, S. ; Staub, U. ; Hoffmann, M. C.

In: Nature Physics, 2019, vol. 15, no. 4, p. 387–392

Direct manipulation of the atomic lattice using intense long-wavelength laser pulses has become a viable approach to create new states of matter in complex materials. Conventionally, a high-frequency vibrational mode is driven resonantly by a mid- infrared laser pulse and the lattice structure is modified through indirect coupling of this infrared-active phonon to other, lower-frequency...

Université de Fribourg

Benchmarking smartphone fluorescence-based microscopy with DNA origami nanobeads: reducing the gap toward single-molecule sensitivity

Vietz, Carolin ; Schütte, Max L. ; Wei, Qingshan ; Richter, Lars ; Lalkens, Birka ; Aydogan Ozcan ; Tinnefeld, Philip ; Acuna, Guillermo P.

In: ACS Omega, 2019, vol. 4, no. 1, p. 637–642

Smartphone-based fluorescence microscopy has been rapidly developing over the last few years, enabling point-of-need detection of cells, bacteria, viruses, and biomarkers. These mobile microscopy devices are cost-effective, field-portable, and easy to use, and benefit from economies of scale. Recent developments in smartphone camera technology have improved their performance, getting closer...

Université de Fribourg

Regulation of global CD8+ T-cell positioning by the actomyosin cytoskeleton

Stein, Jens V. ; Ruef, Nora

In: Immunological Reviews, 2019, vol. 289, no. 1, p. 232–249

CD8+ T cells have evolved as one of the most motile mammalian cell types, designed to continuously scan peptide–major histocompatibility complexes class I on the surfaces of other cells. Chemoattractants and adhesion molecules direct CD8+ T‐cell homing to and migration within secondary lymphoid organs, where these cells colocalize with antigen‐presenting dendritic cells in confined...

Université de Fribourg

Type I interferon/IRF7 axis instigates chemotherapy-induced immunological dormancy in breast cancer

Lan, Qiang ; Peyvandi, Sanam ; Duffey, Nathalie ; Huang, Yu-Ting ; Barras, David ; Held, Werner ; Richard, François ; Delorenzi, Mauro ; Sotiriou, Christos ; Desmedt, Christine ; Lorusso, Girieca ; Rüegg, Curzio

In: Oncogene, 2019, vol. 38, no. 15, p. 2814–2829

Neoadjuvant and adjuvant chemotherapies provide survival benefits to breast cancer patients, in particular in estrogen receptor negative (ER−) cancers, by reducing rates of recurrences. It is assumed that the benefits of (neo)adjuvant chemotherapy are due to the killing of disseminated, residual cancer cells, however, there is no formal evidence for it. Here, we provide experimental...