Thèse de doctorat : Università della Svizzera italiana, 2004 ; 2004COM001.
The World Wide Web provides great opportunities for creating virtual classrooms of learners and instructors involved in distance education. Many software environments take advantage of the client-server communication on the Internet and support open and distance learning. Using environments called Course Management Systems (CMS), instructors can distribute information to students, produce content...
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Thèse de doctorat : Università della Svizzera italiana, 2004 ; 2004ECO003.
Elemento centrale della presente tesi é la comprensione dei fattori che guidano le imprese nelle scelte concernenti il trasferimento dei propri prodotti nello spazio e nel tempo. La motivazione alla base del lavoro é la convinzione che la modellizzazione del trasporto merci oggi non rifletta il comportamento effettivo delle imprese in modo soddisfacente. Una seconda motivazione della...
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Thèse de doctorat : Università della Svizzera italiana, 2004 ; 2004ECO002.
Corporate raiders are often associated with the 1980s takeover wave that reshaped the U.S. corporate landscape. While during the 1980s Europe remained relatively immune to this sort of investor, corporate raiders have operated actively both in Continental Europe and in the U.K. since the mid-1990s. Yet these corporate raiders are very different from the raiders that operated in the U.S. market...
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Thèse de doctorat : Università della Svizzera italiana, 2002 ; 2002ECO001.
This thesis explores a way of representing the structure of the international trade system and of understanding its behaviour. Its main contribution is a model, developed following computer simulation methodology, that deals with interactions and interdependencies in international trade, and consequently, with the study of patterns of trade and trading bloc formation. The simulation model allows...
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Thèse de doctorat : Université de Fribourg, 2004 ; no 1467.
Die vorgestellten Arbeiten behandeln oberflächenphysikalische Aspekte ausgewählter Materialien deren Anwendung aus tribologischer Sicht relevant sind. Tribologie ist ein hochgradig interdisziplinäres Thema und eines der ältesten Probleme, die den denkenden Menschen beschäftigen. Obwohl die Wichtigkeit der Oberfläche in der Tribologie wahrgenommen und akzeptiert wird, bleibt das Verständnis...
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Thèse de doctorat : Università della Svizzera italiana, 2004 ; 2004ECO001.
In the first part of the thesis, we study the local robustness of inference procedures of the conditional location and scale parameters in a stationary time series model. We first derive optimal bounded-influence estimators for the parameters of conditional location and scale models under a conditionally Gaussian reference model. Based on these results, optimal bounded-influence versions of the...
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In: Trends in Ecology and Evolution, 2004, vol. 19, p. 417-422
Evidence is increasing that invasive plants can undergo rapid adaptive evolution during the process of range expansion. Here, we argue that evolutionary change during invasions will also affect plant–antagonist inter-actions and, thus, will have important implications for biological control programmes targeted at invasive plants. We explore how altered selection in the new range might influence...
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Thèse de doctorat : Université de Fribourg, 2004.
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Thèse de doctorat : Université de Fribourg, 2001.
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Thèse de doctorat : Université de Fribourg : 2002.
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