Affiner les résultats

Collection spécifique

Langue

  • Anglais (637) désactiver le filtre
Université de Fribourg

DNA metabarcoding reveals changes in the contents of carnivorous plants along an elevation gradient

Littlefair, Joanne E. ; Zander, Axel ; Sena Costa, Clara de ; Clare, Elizabeth L.

In: Molecular Ecology, 2019, vol. 28, no. 2, p. 281–292

Resource variation along abiotic gradients influences subsequent trophic interactions and these effects can be transmitted through entire food webs. Interactions along abiotic gradients can provide clues as to how organisms will face changing environmental conditions, such as future range shifts. However, it is challenging to find replicated systems to study these effects. Phytotelmata, such...

Université de Neuchâtel

Linguistic skills: the fundament of boundary spanning in international organizational contexts?

Barner-Rasmussen, Wilhelm

In: Bulletin VALS-ASLA, 2017, vol. 106, p. 7-24

Les personnes qui relient deux groupes de part et d'autre d'une frontière quelconque ont un impact significatif sur la façon dont la relation entre les groupes se développe au fil du temps en termes de communication, de flux de connaissances et de présence ou d'absence de conflit. Le rôle clé de ces personnes, appelées ici "passeurs de frontières" (Angl. "boundary spanners"), est...

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...

Accès public à partir du 1 juil. 2019
Université de Fribourg

19. Multilingualism in Switzerland

Grünert, Matthias

In: Manual of Romance Sociolinguistics, 2018, p. 526-548

This chapter deals with the two Romance languages which are officially recognized as minority languages of Switzerland, Romansh and Italian, and with Francoprovençal and French dialects spoken marginally in the francophone area of Switzerland. Romansh, the language that has gained new recognition in the process leading to the quadrilingual Swiss Confederation, is considered in most detail. The...

Université de Neuchâtel

Isotope fractionation due to diffusion and sorption of chlorinated hydrocarbons and its implications for identifying reactive processes in aquifer - aquitard systems

Wanner, Philipp ; Hunkeler, Daniel (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2016.

Des méthodes isotopiques stables ont été utilisées de plus en plus pour identifier et quantifier la transformation réactive dans la sous-surface de composés organiques tels que les hydrocarbures chlorés. La méthode générale repose sur l'hypothèse que seuls les processus réactifs sont associés à un effet isotopique. Cependant, des études récentes ont révélé que les processus...

Université de Fribourg

Cyclostratigraphy of shallow-marine carbonates – limitations and opportunities

Strasser, André

In: Stratigraphy & Timescales, 2018, vol. 3, p. 151–187

The sedimentary record of ancient shallow-marine carbonate platforms commonly displays a stacking of different facies, which reflects repetitive changes of depositional environments through time. These changes can be induced by external factors such as cyclical changes in climate and/or sea level, but also by internal factors such as lateral migration of sediment bodies and/or changes in the...

Université de Fribourg

Asymmetric and distant effects of a unilateral lesion of the primary motor cortex on the bilateral supplementary motor areas in adult macaque monkeys

Contestabile, Alessandro. ; Colangiulo, R. ; Lucchini, Matteo ; Gindrat, Anne-Dominique ; Hamadjida, Adjia ; Kaeser, Mélanie ; Savidan, Julie ; Wyss, A. F. ; Rouiller, Eric M. ; Schmidlin, Eric

In: Journal of Neuroscience, 2018, vol. 38, no. 50, p. 10644–10656

A restricted lesion of the hand area in the primary motor cortex (M1) leads to a deficit of contralesional manual dexterity, followed by an incomplete functional recovery, accompanied by plastic changes in M1 itself and in other cortical areas on both hemispheres. Using the marker SMI-32 specific to pyramidal neurons in cortical layers III and V, we investigated the impact of a focal...

Université de Fribourg

Bimetallic metal organic frameworks with precisely positioned metal centers for efficient H2 storage

Kim, Daeok ; Song, Kyung Seob ; Buyukcakir, Onur ; Yildirim, Taner ; Coskun, Ali

In: Chemical Communications, 2018, vol. 54, no. 86, p. 12218–12221

We demonstrated that the ratio and position of two different metal ions, Pd and Cu, can be precisely controlled within MOFs through predesigned metal clusters. These MOF structures incorporating Pd–Cu paddle wheel units were synthesised simply by reacting Pd–Cu acetate metal clusters and tritopic organic linkers at room temperature. Pd–Cu open metal sites were found to be uniformly...

Université de Fribourg

Packmem: a versatile tool to compute and visualize interfacial packing defects in lipid bilayers

Gautier, Romain ; Bacle, Amélie ; Tiberti, Marion L. ; Fuchs, Patrick F. ; Vanni, Stefano ; Antonny, Bruno

In: Biophysical Journal, 2018, vol. 115, no. 3, p. 436–444

The analysis of the structural organization of lipid bilayers is generally performed across the direction normal to the bilayer/water interface, whereas the surface properties of the bilayer at the interface with water are often neglected. Here, we present PackMem, a bioinformatic tool that performs a topographic analysis of the bilayer surface from various molecular dynamics simulations....

Université de Fribourg

A gardener’s influence on urban soil quality

Tresch, Simon ; Moretti, Marco ; Le Bayon, Renée-Claire ; Mäder, Paul ; Zanetta, Andrea ; Frey, David ; Fliessbach, Andreas

In: Frontiers in Environmental Science, 2018, vol. 6, p. -

Gardens are hot spots for urban biodiversity and provide habitats for many plant and animal species, both above- and below-ground. Furthermore, gardens provide a wide range of ecosystem services, including carbon (C) storage and nutrient cycling. Although the soil is the foundation of sustainable gardens providing those ecosystem services, very little is known about the consequences of garden...