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Université de Fribourg

Integrated bio- and cyclostratigraphy of Middle Triassic (Anisian) ramp deposits, NW Bulgaria

Ajdanlijsky, George ; Strasser, André ; Götz, Annette E.

In: Geologica Carpathica, 2019, vol. 70, no. 4, p. 325–354

A cyclostratigraphic interpretation of peritidal to shallow-marine ramp deposits of the early Middle Triassic (Anisian) Opletnya Member exposed in outcrops along the Iskar River gorge, NW Bulgaria, is presented. Based on facies trends and bounding surfaces, depositional sequences of several orders can be identified. New biostratigraphic data provide a time frame of the studied succession with...

Università della Svizzera italiana

In-depth analysis of the antibody response of individuals exposed to primary dengue virus infection

Alwis, Ruklanthi de ; Beltramello, Martina ; Messer, William B. ; Sukupolvi-Petty, Soila ; Wahala, Wahala M. P. B. ; Kraus, Annette ; Olivarez, Nicholas P. ; Pham, Quang ; Brian, James ; Tsai, Wen-Yang ; Wang, Wei-Kung ; Halstead, Scott ; Kliks, Srisakul ; Diamond, Michael S. ; Baric, Ralph ; Lanzavecchia, Antonio ; Sallusto, Federica ; Silva, Aravinda M. de

In: Plos neglected tropical diseases, 2011, vol. 5, no. 6, p. e1188

Humans who experience a primary dengue virus (DENV) infection develop antibodies that preferentially neutralize the homologous serotype responsible for infection. Affected individuals also generate cross-reactive antibodies against heterologous DENV serotypes, which are non-neutralizing. Dengue cross-reactive, non-neutralizing antibodies can enhance infection of Fc receptor bearing cells and,...

Université de Fribourg

The early to middle triassic continental–marine transition of NW Bulgaria: sedimentology, palynology and sequence stratigraphy

Ajdanlijsky, George ; Götz, Annette E. ; Strasser, André

In: Geologica Carpathica, 2018, vol. 69, no. 2, p. 129–148

Sedimentary facies and cycles of the Triassic continental–marine transition of NW Bulgaria are documented in detail from reference sections along the Iskar river gorge between the villages of Tserovo and Opletnya. The depositional environments evolved from anastomosing and meandering river systems in the Petrohan Terrigenous Group to mixed fluvial and tidal settings in the Svidol Formation,...

Haute Ecole de Gestion & Tourisme

Training of North American travel agents with interactive online learning courses : The case of Switzerland Tourism North America

Ansermet, Lionel ; Salamin, Anne-Dominique (Dir.)

Mémoire de bachelor : Haute Ecole de Gestion & Tourisme, 2015.

With a continuous growth of online booking channels and very knowledgeable consumers, travel advisors must develop strong product knowledge to remain competitive. Interactive online learning courses are often used to train travel professionals, as they offer flexibility and save time and money. New technologies allow learners to interact with the program and be prepared to situations that...

Université de Fribourg

Drosophila suzukii: the genetic footprint of a recent, world-wide invasion

Adrion, Jeffrey R. ; Kousathanas, Athanasios ; Pascual, Marta ; Burrack, Hannah J. ; Haddad, Nick M. ; Bergland, Alan O. ; Machado, Heather ; Sackton, Timothy B. ; Schlenke, Todd A. ; Watada, Masayoshi ; Wegmann, Daniel ; Singh, Nadia D.

In: Molecular Biology and Evolution, 2014, p. msu246

Native to Asia, the soft-skinned fruit pest Drosophila suzukii has recently invaded the United States and Europe. The eastern United States represents the most recent expansion of their range, and presents an opportunity to test alternative models of colonization history. Here we investigate the genetic population structure of this invasive fruit fly, with a focus on the eastern United States. We...

Bibliothèque cantonale jurassienne

Crocodyle-like footprints from the Upper Triassic (Carnian) of the Italian Southern Alps

Avanzini, Marco

In: New Mexico Museum of Natural History & Science bulletin, 2010, vol. 51, p. 61-64

Université de Fribourg

An abelisauroid (Dinosauria: Theropoda) from the early Jurassic of the high atlas mountains, Morocco, and the radiation of Ceratosaurs

Allain, Ronan ; Tykoski, Ronald ; Aquesbi, Najat ; Jalil, Nour-Eddine ; Monbaron, Michel ; Russell, Dale ; Taquet, Philippe

In: Journal of Vertebrate Paleontology, 2007, vol. 27, no. 3, p. 610–624

The fossil record of abelisauroid carnivorous dinosaurs was previously restricted to Cretaceous sediments of Gondwana and probably Europe. The discovery of an incomplete specimen of a new basal abelisauroid, Berberosaurus liassicus, gen. et sp. nov., is reported from the late Early Jurassic of Moroccan High Atlas Mountains. Phylogenetic analysis recovers Ceratosauroidea and Coelophysoidea as...

Université de Fribourg

A basal sauropod dinosaur from the Early Jurassic of Morocco

Allain, Ronan ; Aquesbi, Najat ; Dejax, Jean ; Meyer, Christian ; Monbaron, Michel ; Montenat, Christian ; Richir, Philippe ; Rochdy, Mohammed ; Russell, Dale ; Taquet, Philippe

In: Comptes Rendus Palevol, 2004, vol. 3(3), p. 199

Continental strata of Early Jurassic age are seldom exposed, and little is known of the history of sauropod dinosaurs prior to the Middle Jurassic radiation of neosauropods. Well-preserved skeletons and skulls have not been recovered from strata older than the Middle Jurassic. Here we report, in the Early Jurassic of the Moroccan High Atlas, the discovery of the skeleton, including cranial...