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Université de Neuchâtel

The foraging ecology of two neighbouring chimpanzee communities from Budongo Forest

Villioth, Jakob ; Newton-Fisher, Nicholas E. (Dir.) ; Zuberbühler, Klaus (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

Chimpanzees (Pan troglodytes) often serve as a model species to test socio-ecological theories of foraging behaviour. Due to a high degree of fission-fusion dynamics, essential foraging variables, such as group size, patch size and travel distance, are expected to be more closely linked in chimpanzees than in animals that forage in cohesive groups. While it has been clearly established...

Université de Fribourg

Food vs money? Effects of hunger on mood and behavioral reactivity to reward in anorexia nervosa

Piccolo, Mayron ; Milos, Gabriella ; Bluemel, Sena ; Schumacher, Sonja ; Müller-Pfeiffer, Christoph ; Fried, Michael ; Ernst, Monique ; Martin-Soelch, Chantal

In: Appetite, 2019, vol. 134, p. 26-33

BACKGROUND: Previous studies using neuroimaging and behavioral measures reported altered reward processing in anorexia nervosa (AN). In addition, anhedonia states are frequently reported in AN, potentially due to the physiological stress produced by the permanent starvation. We investigated the effect of fasting and satiety on mood and reaction times to monetary rewards in AN patients and healthy...

Université de Fribourg

The relationship of obesity predicting decline in executive functioning is attenuated with greater leisure activities in old age

Ihle, Andreas ; Gouveia, Élvio R. ; Gouveia, Bruna R. ; Zuber, Sascha ; Mella, Nathalie ; Desrichard, Olivier ; Cullati, Stéphane ; Oris, Michel ; Maurer, Jürgen ; Kliegel, Matthias

In: Aging & Mental Health, 2019, p. 1–8

Objectives: We investigated the longitudinal relationship between obesity and subsequent decline in executive functioning over six years as measured through performance changes in the Trail Making Test (TMT). We also examined whether this longitudinal relationship differed by key markers of cognitive reserve (education, occupation, and leisure activities), taking into account age, sex, and...

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...