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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

A novel approach to estimate glacier mass balance in the Tien Shan and Pamir based on transient snowline observations

Barandun, Martina ; Huss, Matthias (Dir.)

Thèse de doctorat : Université de Fribourg, 2018 ; no 2099.

Glaciers are recognised as an excellent proxy for climate change and their centennial massloss has accelerated during the past decades. The Central Asian mountain ranges Tien Shan and Pamir host over 25,000 glaciers that have been observed to respond heterogeneous to climate change. Glacier changes in the region have very important consequences on the water availability for the densely populated...

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...

Haute Ecole pédagogique Fribourg

Le testing provincial de l’Ontario vu par les enseignants : opportunité de développement professionnel ou obligation de faire réussir leurs élèves aux tests ?

Yerly, Gonzague

In: Évaluer. Journal international de recherche en éducation et formation, 2018, vol. 4, no. 3, p. 79-103

Au début des années 2000, la province de l’Ontario a instauré un ambitieux système d’évaluation standardisée des acquis des élèves dans le but d’améliorer la performance de son système scolaire. La politique de testing ontarienne se différencie des systèmes classiques d’accountability (dure ou douce). Elle articule reddition de comptes et responsabilisation des acteurs. Au...

Université de Neuchâtel

Comparison of survey data on wealth in Switzerland

Ravazzini, Laura ; Kuhn, Ursina ; Brulé, Gaël ; Suter, Christian

Beyond income, wealth is one of most relevant components among national and international indicators of household finances. Three surveys that include Switzerland have recently integrated questions about wealth and its components. These surveys are the Swiss Household Panel -SHP- (2016), the Statistics on Income and Living Conditions -CH-SILC- (2015), and the Survey on Health, Ageing and...

Université de Neuchâtel

We are ready for faunistic surveys of bdelloid rotifers through DNA barcoding : the example of Sphagnum bogs of the Swiss Jura Mountains = Listos para revisiones faunísticas de rotíferos bdelloideos por DNA barcoding: el caso de las turberas de Sphagnum de las montañas del Jura suizo

Fontaneto, Diego ; Eckert, Ester M ; Anicic, Nikoleta ; Lara, Enrique ; Mitchell, Edward A. D

In: Limnetica, 2019, vol. 38, no. 1, p. 213-225

The identification of biological diversity through DNA barcoding and metabarcoding of the organisms living in the field has the potential to revolutionise the way biological surveys and monitoring are performed. Yet, we still do not know if the current representativeness of the reference database of DNA sequence data is sufficient to allow such approaches. Here, we show that, at least for...

Université de Fribourg

Multi-brand loyalty in consumer markets : a qualitatively-driven mixed methods approach

Arifine, Ghizlane ; Felix, Reto ; Furrer, Olivier

(Working Papers SES ; 501)

Purpose—Although multi-brand loyalty (MBL) in consumer markets has been identified in previous brand loyalty research, empirical studies have not yet explored the facets of its different types. This article seeks a deeper understanding of MBL by investigating its different types and facets. Design/methodology/approach—This study uses a sequential, qualitatively-driven mixed method design...

Université de Fribourg

La Formation du Grand Essert (Jura franco-suisse; Valanginien supérieur p.p. à Hauterivien supérieur basal) = The Grand Essert Formation (French-Swiss Jura Mountains; late Valanginian p.p. to earliest late Hauterivian)

Strasser, André ; Clavel, Bernard ; Monteil, Eric ; Charollais, Jean ; Piuz, André ; Mastransgelo, Bruno

In: Archives des Sciences, 2018, vol. 70, p. 205-282

Le terme de Formation du Grand Essert a été proposé en 2016 pour remplacer ceux de « Marnes d’Hauterive » auct. et « Pierre jaune de Neuchâtel » auct. attribués à l’« Hauterivien » auct. dans le Jura franco-suisse. L’objet de cette note est, dans un premier temps, de décrire et d’interpréter la lithologie de la coupe-type représentative de cette nouvelle formation,...

Université de Fribourg

The genus Amphistegina (benthic foraminifera): distribution along the southern Tunisian coast

Kateb, Akram El ; Stalder, Claudio ; Stainbank, Stephanie ; Fentimen, Robin ; Spezzaferri, Silvia

In: BioInvasions Records, 2018, vol. 7, no. 4, p. 391–398

The benthic foraminiferal genus Amphistegina is currently expanding its range in the Mediterranean Sea after being introduced through the Suez Canal from the Red Sea. Over the previous decade, Amphistegina spp. has colonized the eastern part of the Mediterranean Sea including the Egyptian and Libyan coasts, but the present southern limit in the Mediterranean Sea is along the southern Tunisian...

Université de Fribourg

A large impact crater beneath Hiawatha Glacier in northwest Greenland

Kjær, Kurt H. ; Larsen, Nicolaj K. ; Binder, Tobias ; Bjørk, Anders A. ; Eisen, Olaf ; Fahnestock, Mark A. ; Funder, Svend ; Garde, Adam A. ; Haack, Henning ; Helm, Veit ; Houmark-Nielsen, Michael ; Kjeldsen, Kristian K. ; Khan, Shfaqat A. ; Machguth, Horst ; McDonald, Iain ; Morlighem, Mathieu ; Mouginot, Jérémie ; Paden, John D. ; Waight, Tod E. ; Weikusat, Christian ; Willerslev, Eske ; MacGregor, Joseph A.

In: Science Advances, 2018, vol. 4, no. 11, p. eaar8173

We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest Greenland. From airborne radar surveys, we identify a 31-kilometer-wide, circular bedrock depression beneath up to a kilometer of ice. This depression has an elevated rim that cross-cuts tributary subglacial channels and a subdued central uplift that appears to be actively eroding. From ground...