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Université de Fribourg

Size and shape: the developmental regulation of static allometry in insects

Shingleton, Alexander W. ; Frankino, W. Anthony ; Flatt, Thomas ; Nijhout, H. Frederik ; Emlen, Douglas J.

In: BioEssays, 2007, vol. 29, no. 6, p. 536-548

Among all organisms, the size of each body part or organ scales with overall body size, a phenomenon called allometry. The study of shape and form has attracted enormous interest from biologists, but the genetic, developmental and physiological mechanisms that control allometry and the proportional growth of parts have remained elusive. Recent progress in our understanding of body‐size...

Université de Neuchâtel

Metaproteomics and ultrastructure characterization of Komagataeibacter spp. involved in high-acid spirit vinegar production

Andrés-Barrao, Cristina ; Saad, Maged M ; Cabello Ferrete, Elena ; Bravo, Daniel ; Chappuis, Marie-Luise ; Ortega Pérez, Ruben ; Junier, Pilar ; Perret, Xavier ; Barja, François

In: Food Microbiology, 2016, vol. 55, p. 112-122

Acetic acid bacteria (AAB) are widespread microorganisms in nature, extensively used in food industry to transform alcohols and sugar alcohols into their corresponding organic acids. Specialized strains are used in the production of vinegar through the oxidative transformation of ethanol into acetic acid. The main AAB involved in the production of high-acid vinegars using the submerged...

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

Des abeilles, des ruches et des humains : les Centres apicoles : des acteurs de la réalisation de la filière apicole au Burkina Faso

Boila, Zeno ; Fresia, Marion (Dir.) ; Aebi, Alexandre (Codir.)

Mémoire de master : Université de Neuchâtel, 2018 ; NET 900/431.

La présente étude se focalise sur les processus de structuration de la filière apicole au Burkina Faso et sur le rôle joué par les Centres apicoles ; des structures nées en tant qu’unités de transformation des premiers projets de développement en apiculture élaborés par certaines ONG étrangères durant la fin des années 1990 et le début des années 2000. En partant du constat...

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...

Public access from 01.07.2019
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.

Chlorinated hydrocarbons are anthropogenic contaminants, which are known to be possibly carcinogenic to humans. Although the peak production of chlorinated hydrocarbons in the 1970ties was followed by a dramatic decrease in the subsequent decades, chlorinated hydrocarbons are still frequently detected in aquifer systems demonstrating their long-term persistence. When chlorinated hydrocarbons are...

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...