In: Hydrological Processes, 2008, vol. 22, no. 1, p. 117-126
We analyse spatial variability and different evolution patterns of snowpack in a mixed beech-fir stand in the central Pyrenees. Snow depth and density were surveyed weekly along six transects of contrasting forest cover during a complete accumulation and melting season; we also surveyed a sector unaffected by canopy cover. Forest density was measured using the sky view factor (SVF) obtained from...
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In: Chinese Physics Letters, 2008, vol. 25, no. 6, p. 2319-2322
The two-phase behaviour in financial markets actually means the bifurcation phenomenon, which represents the change of the conditional probability from an unimodal to a bimodal distribution. We investigate the bifurcation phenomenon in Hang–Seng index. It is observed that the bifurcation phenomenon in financial index is not universal, but specific under certain conditions. For Hang–Seng index...
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In: Applied Radiation and Isotopes, 2008, vol. 66, no. 6-7, p. 737-741
After the nuclear reactor accident of Chernobyl, the “Integrated Measurement and Information System (IMIS) for Monitoring the Environmental Radioactivity and Detecting Emissions from Nuclear Plants was implemented in Germany. IMIS is a nationwide comprehensive measuring system which permanently monitors the radioactivity in all important environment media in the whole federal territory. At...
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The paper presents a robust version of a simple two-assets Merton's (1969) model where the optimal choices and the implied shadow market prices of risk for a representative robust decision maker (RDM) can be easily described. With the exeption of the log utility case, precautionary behaviour is induced in the optimal consumption-investment rules through a substitution of investment in risky...
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Mémoire de diplôme HES : Haute école de gestion de Genève, 2007 ; TDEE 52.
A very entrepreneurial intuition happened to be at the source of this project. The intuition that the Swiss mobile telephony market is a “green-able” one, meaning a new virtual operator whose value proposition relies on the ethics of its functioning and offer could be launched: a green mobile operator. Thus, this document aims at inquiring whether such an operator would actually be relevant,...
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Although numerous studies acknowledge that strategies frequently fail not because of inadequate strategy formulation, but because of insufficient implementation, strategy implementation has received less research attention than strategy formulation. In this study, we review the factors that enable or impede effective strategy implementation, and survey the state-of-the-art in this domain. We...
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Thèse de doctorat : Università della Svizzera italiana, 2007 ; 2007COM007.
The fast integration of Information and Communication Technologies (ICTs) is showing its deep impact onto society in every aspect. Each new technology – and also eLearning – needs to be accepted and integrated in everyday practices. The problem of eLearning acceptance is confirmed by data about abandonment and dropouts of eLearning activities and its relevance emerges clearly in a context...
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In: Energy Policy, 2004, vol. 32, no. 3, p. 429-436
In the past, several electricity demand studies have been published for India based on aggregate macro data at the country or sub-national/state level. Since the underlying theory of consumer demand is based on the behaviour of individual agents, the use of micro data, which reflects individual and household behaviour, more closely, can shed greater light on the nature of consumer responses. In...
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In: Natural Hazards, 2006, vol. 39, no. 1, p. 51-70
Over the last few years, rockfall research has increasingly focused on hazard assessment and risk analysis. Input data on past rockfall activity were gathered from historical archives and lichenometric studies or were obtained through frequency– volume statistics. However, historical records are generally scarce, and lichenometry may only yield data with relatively low resolutions. On...
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Thèse de doctorat : Université de Fribourg, 2006.
The United Nations Declaration of Human Rights clearly formulates its demands universally. When it comes to the concrete application of these rights, however, the claim for universality cannot remain unquestioned. The question that is asked is whether or not human rights fit into all cultural contexts, or if they are just another aspect of western cultural imperialism. This discussion is...
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