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Université de Fribourg

Internal lamellar and inverse hexagonal liquid crystalline phases during the digestion of krill and astaxanthin oil-in-water emulsions

Yaghmur, Anan ; Lotfi, Saleh ; Ariabod, Sarah Atoussa ; Bor, Gizem ; Gontsarik, Mark ; Salentinig, Stefan

In: Frontiers in Bioengineering and Biotechnology, 2019, vol. 7, p. -

Krill oil represents an important alternative natural source of omega-3 (ω-3) polyunsaturated fatty acids (PUFAs). Considering the beneficial health effects of these essential fatty acids, particularly in various disorders including cancer, cardiovascular, and inflammation diseases, it is of paramount importance to gain insight into the digestibility of krill oil. In this work, we study the...

Haute école de gestion de Genève

Impacts of Fed’s decisions on emerging countries : an empirical analysis & investment solution

Amigo Weidemann, Simon ; Sterchi, Kurt (Dir.)

Mémoire de bachelor : Haute école de gestion de Genève, 2019 ; TDIBM 64.

On July 13th, 2019, the Fed decided to reduce its interest rates by 25 basis points. Its first since October 2008. A decision that could be thought of as a good thing for the emerging countries’ economies. Indeed, according to economic theories and history, they would benefit from a significant breath of fresh air. Legend has it that the Fed's will have a significant impact on emerging...

Haute école de gestion de Genève

The impact of Social Media Influencer’s (SMI) on the buying decisions of Generation Y

Chowdhury, Ruhi Farzana ; Miller, Caroline (Dir.)

Mémoire de bachelor : Haute école de gestion de Genève, 2019 ; TDIBM 53.

This research aims to analyse how social media influencers on Instagram influence the purchasing decision of Millennial consumers in the luxury watch industry in Swiss Romandie. The first part of this project discusses different elements surrounding influencer marketing and Millennial’s online buying behaviour. The second part investigates Millennials’ presence on social media and their...

Université de Fribourg

Make a drawing. Effects of strategic knowledge, drawing accuracy, and type of drawing on students’ mathematical modelling performance

Rellensmann, Johanna ; Schukajlow, Stanislaw ; Leopold, Claudia

In: Educational Studies in Mathematics, 2016, vol. 95, no. 1, p. 53-78

Drawing strategies are widely used as a powerful tool for promoting students’ learning and problem solving. In this article, we report the results of an inferential mediation analysis that was applied to investigate the roles that strategic knowledge about drawing and the accuracy of different types of drawings play in mathematical modelling performance. Sixty-one students were asked to create...

Université de Fribourg

Recent glacier and lake changes in High Mountain Asia and their relation to precipitation changes

Treichler, Désirée ; Kääb, Andreas ; Salzmann, Nadine ; Xu, Chong-Yu

In: The Cryosphere, 2019, vol. 13, no. 11, p. 2977–3005

We present an updated, spatially resolved estimate of 2003–2008 glacier surface elevation changes for the entire region of High Mountain Asia (HMA) from ICESat laser altimetry data. The results reveal a diverse pattern that is caused by spatially greatly varying glacier sensitivity, in particular to precipitation availability and changes. We introduce a spatially resolved zonation where...

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

Nobody’s Innocent : The Role of Customers in the Doping Dilemma

Buechel, Berno ; Emrich, Eike ; Pohlkamp, Stefanie

In: Journal of sports economics, 2016, vol. 17, no. 8, p. 767-789

Customers who boycott an organization after some scandal may actually exacerbate the fraud problem they would like to prevent. This conclusion is derived from a game- theoretic model that introduces a third player into the standard inspection game. Focusing on the example of doping in professional sports, we observe that doping is prevalent in equilibrium because customers undermine an...

Université de Fribourg

How network topologies impact project alliance performance: evidence from the movie industry

Zhang, Xin-Jie ; Tang, Yong ; Xiong, Jason ; Wang, Wei-Jia ; Zhang, Yi-Cheng

In: Entropy, 2019, vol. 21, no. 9, p. 859

In many industries, partners are interconnected in project alliances that have limited lifespans and clearly-defined boundaries. The transparency of the movie industry provides a unique opportunity to study how alliance network topologies impact the performance of project alliances from the perspectives of social networks and organization theories. In this work, we compiled a massive movie...

Université de Fribourg

Hund excitations and the efficiency of Mott solar cells

Petocchi, Francesco ; Beck, Sophie ; Ederer, Claude ; Werner, Philipp

In: Physical Review B, 2019, vol. 100, no. 7, p. 075147

We study the dynamics of photoinduced charge carriers in semirealistic models of LaVO3 and YTiO3 polar heterostructures. It is shown that two types of impact ionization processes contribute to the carrier multiplication in these strongly correlated multiorbital systems: The first mechanism involves local spin state transitions, while the second mechanism involves the scattering of...

Université de Fribourg

Effect of 3-mercaptopyruvate sulfurtransferase deficiency on the development of multiorgan failure, inflammation, and wound healing in mice subjected to burn injury

Ahmad, Akbar ; Druzhyna, Nadiya ; Szabo, Csaba

In: Journal of Burn Care & Research, 2019, vol. 40, no. 2, p. 148–156

The gaseous transmitter hydrogen sulfide (H2S) has been implicated in various forms of critical illness. Here, we have compared the outcome of scald burn injury in wild- type mice and in mice deficient in 3-mercaptopyruvate sulfurtransferase (3-MST), a mammalian H2S-generating enzyme. Outcome variables included indices of organ injury, clinical chemistry parameters, and plasma levels of...