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Université de Neuchâtel

Long-term effects of deep-seated landslides on transportation infrastructure : a case study from the Swiss Jura Mountains

Preisig, Giona

In: Quarterly Journal of Engineering Geology and Hydrogeology, 2018, p. 128-137

Deep-seated landslides (DSLs) involve large-scale deformation and likely affect transportation infrastructure. Movement rates are in general very slow (less than a metre per year) with acceleration periods controlled by external factors such as the seasonal fluctuation of groundwater pressure. Acceleration response may change from season to season depending on hydrogeological conditions, changes...

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

Counting calories in Drosophila diet restriction

Min, Kyung-Jin ; Flatt, Thomas ; Kulaots, Indrek ; Tatar, Marc

In: Experimental Gerontology, 2006, vol. 42, no. 3, p. 247-251

The extension of life span by diet restriction in Drosophila has been argued to occur without limiting calories. Here we directly measure the calories assimilated by flies when maintained on full- and restricted-diets. We find that caloric intake is reduced on all diets that extend life span. Flies on low-yeast diet are long-lived and consume about half the calories of flies on high-yeast diets,...

Université de Neuchâtel

De la coutume au code : résistances à la codification du droit civil à Neuchâtel sous l'Ancien Régime

Wyssbrod, Adrien ; Christin, Olivier (Dir.) ; Dunand, Jean-Philippe (Codir.) ; Chaix, Gérald (Codir.) ; Tappy, Denis (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Le droit civil dans la principauté de Neuchâtel reste coutumier durant tout l'Ancien Régime. Malgré une volonté en apparence affirmée de codifier, les princes de Neuchâtel successifs ne parviennent pas à faire rédiger cette coutume. Leurs rêves de codifications s'inscrivent parfaitement dans les idées des Lumières et les souverains sont soutenus par les philosophes. Pourquoi, dans une...

Université de Fribourg

What is metamorphosis?

Bishop, C. D. ; Erezyilmaz, D. F. rsity ; Flatt, Thomas ; Georgiou, C. D. ; Hadfield, M. G. ; Heyland, A. ; Hodin, J. ; Jacobs, M. W. ; Malakova, S. A. ; Pires, A. ; Reitzel, A. M. ; Santagata, S. ; Tanaka, K. ; Youson, J. H.

In: Integrative and Comparative Biology, 2006, vol. 46, no. 6, p. 655–661

Metamorphosis (Gr. meta- “change” + morphe “form”) as a biological process is generally attributed to a subset of animals: most famously insects and amphibians, but some fish and many marine invertebrates as well. We held a symposium at the 2006 Society for Integrative and Comparative Biology (SICB) annual meeting in Orlando, FL (USA) to discuss metamorphosis in a comparative context....

Université de Fribourg

A role for genetic accommodation in evolution?

Braendle, Christian ; Flatt, Thoams

In: BioEssays, 2006, no. 28, p. 868-873

Whether evolutionary change can occur by genetic assimilation, or more generally by genetic accommodation, remains controversial. Here we examine some of the experimental evidence for both phenomena. Several experiments in Drosophila suggest that assimilation is possible, and a new paper1 shows that a color polyphenism in the tobacco hornworm, Manduca sexta, can evolve by genetic accommodation....

Université de Fribourg

Juvenile and Steroid Hormones in Drosophila melanogaster Longevity

Flatt, Thomas ; Tu, Meng-Ping ; Tatar, Marc

In: The Handbook of the Biology of Aging, 2006, p. 415-448

This chapter reviews hormonal effects on aging in Drosophila melanogaster. The insect juvenile hormone (JH) is a sesquiterpenoid compound produced by the corpora allata (CA), a pair of endocrine glands with nervous connections to the brain. In pre-adult development and metamorphosis, JH functions as a "status quo" hormone, allowing continued growth after ecdysteroid-induced molting. Metamorphosis...

Université de Fribourg

Quoi de neuf, docteur ? La médecine à l’époque romaine. : La médecine à l’époque romaine. Quoi de neuf, docteur ?, Catalogue de l'exposition, Lyon, Musée gallo-romain (édition augmentée de l'édition originale réalisée pour la création de l'exposition au Musée romain de Nyon, 2010)

Dasen, Véronique

Ed. augm.. Lyon, 2011

Que se passait-il quand on tombait malade à l’époque romaine ? A qui s’adressait-on pour être soigné ? Quel était le statut du médecin, à une époque où aucun diplôme officiel ne sanctionnait la formation médicale ? Comment comprenait-on le fonctionnement du corps ? De quels moyens thérapeutiques disposait-on ? Une série de recherches et de découvertes archéologiques récentes...

Université de Fribourg

Evolution in group-structured populations can resolve the tragedy of the commons

Killingback, Timothy ; Bieri, Jonas ; Flatt, Thomas

In: Proceeding of the Royal Society, 2006, no. 273, p. 1477–1481

Public goods are the key features of all human societies and are also important in many animal societies. Collaborative hunting and collective defence are but two examples of public goods that have played a crucial role in the development of human societies and still play an important role in many animal societies. Public goods allow societies composed largely of cooperators to outperform...