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Haute Ecole d'Ingénierie

Turbinage des eaux usées du Haut-Plateau de Crans-Montana

Musolla, Marie ; Münch-Alligné, Cécile (Dir.)

Mémoire de bachelor : Haute Ecole d'Ingénierie, 2019.

Le présent projet a pour but d’étudier la faisabilité et la rentabilité d’une centrale de turbinage sur le réseau des eaux usées du Haut-Plateau de Crans-Montana. Après avoir étudié l’état de l’art dans le domaine du turbinage des eaux usées et listé les installations existantes dans le monde avec les solutions technologiques installées, le potentiel hydraulique de ce...

Université de Fribourg

Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid Andes of central Chile

Ayala, Álvaro ; Farías-Barahona, David ; Huss, Matthias ; Pellicciotti, Francesca ; McPhee, James ; Farinotti, Daniel

In: The Cryosphere, 2020, vol. 14, no. 6, p. 2005–2027

As glaciers adjust their size in response to climate variations, long-term changes in meltwater production can be expected, affecting the local availability of water resources. We investigate glacier runoff in the period 1955–2016 in the Maipo River basin (4843 km2, 33.0–34.3∘ S, 69.8–70.5∘ W), in the semiarid Andes of Chile. The basin contains more than 800 glaciers, which...

Université de Fribourg

Neuroanatomy of the spinosaurid Irritator challengeri (Dinosauria: Theropoda) indicates potential adaptations for piscivory

Schade, Marco ; Rauhut, Oliver W. M. ; Evers, Serjoscha W.

In: Scientific Reports, 2020, vol. 10, no. 1, p. 9259

Spinosauridae, a theropod group characterized by elongated snouts, conical teeth, enlarged forelimbs, and often elongated neural spines, show evidence for semiaquatic adaptations and piscivory. It is currently debated if these animals represent terrestrial carnivores with adaptations for a piscivorous diet, or if they largely lived and foraged in aquatic habitats. The holotype of Irritator...

Université de Fribourg

A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Joyce, Walter G. ; Rollot, Yann ; Cifelli, Richard L.

In: Fossil Record, 2020, vol. 23, no. 1, p. 1–13

Baenidae is a clade of paracryptodiran turtles known from the late Early Cretaceous to Eocene of North America. The proposed sister-group relationship of Baenidae to Pleurosternidae, a group of turtles known from sediments dated as early as the Late Jurassic, suggests a ghost lineage that crosses the early Early Cretaceous. We here document a new species of paracryptodiran turtle, Lakotemys...

Université de Fribourg

Notes on the cheek region of the Late Jurassic theropod dinosaur Allosaurus

Evers, Serjoscha W. ; Foth, Christian ; Rauhut, Oliver W.M.

In: PeerJ, 2020, vol. 8, p. e8493

Allosaurus, from the Late Jurassic of North America and Europe, is a model taxon for Jurassic basal tetanuran theropod dinosaurs. It has achieved an almost iconic status due to its early discovery in the late, 19th century, and due to the abundance of material from the Morrison Formation of the western U.S.A., making Allosaurus one of the best-known theropod taxa. Despite this, various...

Université de Fribourg

Late Jurassic theropod dinosaur bones from the Langenberg Quarry (Lower Saxony, Germany) provide evidence for several theropod lineages in the central European archipelago

Evers, Serjoscha W. ; Wings, Oliver

In: PeerJ, 2020, vol. 8, p. e8437

Marine limestones and marls in the Langenberg Quarry provide unique insights into a Late Jurassic island ecosystem in central Europe. The beds yield a varied assemblage of terrestrial vertebrates including extremely rare bones of theropod from theropod dinosaurs, which we describe here for the first time. All of the theropod bones belong to relatively small individuals but represent a wide...

Université de Fribourg

A non-archaeopterygid avialan theropod from the Late Jurassic of southern Germany

Rauhut, Oliver W. M. ; Tischlinger, Helmut ; Foth, Christian

In: eLife, 2019, vol. 8, p. e43789

The Late Jurassic ‘Solnhofen Limestones’ are famous for their exceptionally preserved fossils, including the urvogel Archaeopteryx, which has played a pivotal role in the discussion of bird origins. Here we describe a new, non-archaeopterygid avialan from the Lower Tithonian Mörnsheim Formation of the Solnhofen Archipelago, Alcmonavis poeschli gen. et sp. nov. Represented by a right...

Consortium of Swiss Academic Libraries

Cretaceous syn-sedimentary faulting in the Wildhorn Nappe (SW Switzerland)

Cardello, G. ; Mancktelow, Neil

In: Swiss Journal of Geosciences, 2014, vol. 107, no. 2-3, p. 223-250

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...