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Public access from 14.12.2020
Université de Fribourg

Perceived Attractiveness of Structured Financial Products : The Role of Presentation Format and Reference Instruments

Anic, Vladimir ; Wallmeier, Martin

In: Journal of Behavioral Finance, 2020, vol. 21, no. 1, p. 78-102

Structured equity-linked products hold a strong position in the asset universe in Europe although they are often considered to be overly complex. Their risk and return profi le is typically presented by simple payoff diagrams and verbal descriptions. We propose to complement the payoff diagrams with information on the payoff's probability distribution and study different presentation formats...

Université de Fribourg

A new alligatoroid from the Eocene of Vietnam highlights an extinct Asian clade independent from extant Alligator sinensis

Massonne, Tobias ; Vasilyan, Davit ; Rabi, Márton ; Böhme, Madelaine

In: PeerJ, 2019, vol. 7, p. e7562

During systematic paleontological surveys in the Na Duong Basin in North Vietnam between 2009 and 2012, well-preserved fossilized cranial and postcranial remains belonging to at least 29 individuals of a middle to late Eocene (late Bartonian to Priabonian age (39–35 Ma)) alligatoroid were collected. Comparative anatomical study of the material warrants the diagnosis of a new taxon,...

Interkantonale Hochschule für Heilpädagogik Zürich HfH

Utility of Feedback Has a Greater Impact on Learning than Ease of Decoding

Dainton, Chelsea ; Winstone, Naomi ; Klaver, Peter ; Opitz, Bertram

In: Mind, Brain, and Education, 2019, p. 1-7

While feedback is a key facilitator of learning, researchers have yet to determine the ideal feedback process for optimal performance in learners. The current study investigates the combined effects of ease of decoding, and utility of feedback during learning. Accuracy and rate of learning were recorded alongside changes to the feedback related negativity (FRN), an event‐related potential...

Université de Fribourg

Assessment of the potential for in-plume sulphur dioxide gas-ash interactions to influence the respiratory toxicity of volcanic ash

Tomašek, Ines ; Damby, David E. ; Horwell, Claire J. ; Ayris, Paul M. ; Delmelle, Pierre ; Ottley, Christopher J. ; Cubillas, Pablo ; Casas, Ana S. ; Bisig, Christoph ; Petri-Fink, Alke ; Dingwell, Donald B. ; Clift, Martin J. D. ; Drasler, Barbara ; Rothen-Rutishauser, Barbara

In: Environmental Research, 2019, vol. 179, p. 108798

Volcanic plumes are complex environments composed of gases and ash particles, where chemical and physical processes occur at different temperature and compositional regimes. Commonly, soluble sulphate- and chloride-bearing salts are formed on ash as gases interact with ash surfaces. Exposure to respirable volcanic ash following an eruption is potentially a significant health concern. The...

Université de Fribourg

A conceptual framework for range-expanding species that track human-induced environmental change

Essl, Franz ; Dullinger, Stefan ; Genovesi, Piero ; Hulme, Philip E ; Jeschke, Jonathan M ; Katsanevakis, Stelios ; Kühn, Ingolf ; Lenzner, Bernd ; Pauchard, Aníbal ; Pyšek, Petr ; Rabitsch, Wolfgang ; Richardson, David M ; Seebens, Hanno ; van Kleunen, Mark ; van der Putten, Wim H ; Vilà, Montserrat ; Bacher, Sven

In: BioScience, 2019, vol. 69, no. 11, p. 908–919

For many species, human-induced environmental changes are important indirect drivers of range expansion into new regions. We argue that it is important to distinguish the range dynamics of such species from those that occur without, or with less clear, involvement of human-induced environmental changes. We elucidate the salient features of the rapid increase in the number of species whose...

Université de Fribourg

Entropy-cooled nonequilibrium states of the Hubbard model

Werner, Philipp ; Li, Jianju ; Golež, Denis ; Eckstein, Martin

In: Physical Review B, 2019, vol. 100, no. 15, p. 155130

We show that the recently proposed cooling-by-doping mechanism allows one to efficiently prepare interesting nonequilibrium states of the Hubbard model. Using nonequilibrium dynamical mean field theory and a particle-hole symmetric setup with dipolar excitations to full and empty bands we produce cold photodoped Mott insulating states with a sharp Drude peak in the optical conductivity, a ...

Université de Fribourg

From chaos to many-body localization: some introductory notes

Chotorlishvili, L. ; Stagraczyński, S. ; Schüler, Michael ; Berakdar, J.

In: Acta Physica Polonica A, 2019, vol. 135, no. 6, p. 1155–1162

Staring from the kicked rotator as a paradigm for a system exhibiting classical chaos, we discuss the role of quantum coherence resulting in dynamical localization in the kicked quantum rotator. In this context, the disorder-induced Anderson localization is also discussed. Localization in interacting, quantum many-body systems (many-body localization) may also occur in the absence of...

Université de Fribourg

Combined with anti‐Nogo‐A antibody treatment, BDNF did not compensate the extra deleterious motor effect caused by large size cervical cord hemisection in adult macaques

Beaud, Marie‐Laure ; Rouiller, Eric M. ; Bloch, Jocelyne ; Mir, Anis ; Schwab, Martin E. ; Schmidlin, Eric

In: CNS Neuroscience & Therapeutics, 2019, p. cns.13213

In spinal cord injured adult mammals, neutralizing the neurite growth inhibitor Nogo‐A with antibodies promotes axonal regeneration and functional recovery, although axonal regeneration is limited in length. Neurotrophic factors such as BDNF stimulate neurite outgrowth and protect axotomized neurons. Can the effects obtained by neutralizing Nogo‐A, inducing an environment favorable for...

Université de Fribourg

Synthesis of tetraarylethene luminogens by C−H vinylation of aromatic compounds with triazenes

Suleymanov, Abdusalom A. ; Doll, Martin ; Albert Ruggi ; Scopelliti, Rosario ; Fadaei-Tirani, Farzaneh ; Severin, Kay

In: Angewandte Chemie International Edition, 2019, p. -

Tetraarylethenes are obtained by acid‐induced coupling of vinyl triazenes with aromatic compounds. This new C−H activation route for the synthesis of aggregation‐ induced emission luminogens is simple, fast, and versatile. It allows the direct grafting of triarylethenyl groups onto a variety of aromatic compounds, including heterocycles, supramolecular hosts, biologically relevant...

Université de Fribourg

Wolbachia modifies thermal preference in Drosophila melanogaster

Truitt, Amy M. ; Kapun, Martin ; Kaur, Rupinder ; Miller, Wolfgang J.

In: Environmental Microbiology, 2019, vol. 21, no. 9, p. 3259–3268

Environmental variation can have profound and direct effects on fitness, fecundity, and host–symbiont interactions. Replication rates of microbes within arthropod hosts, for example, are correlated with incubation temperature but less is known about the influence of host–symbiont dynamics on environmental preference. Hence, we conducted thermal preference (Tp) assays and tested if...