Thèse de doctorat : Université de Fribourg, 2007 ; Nr. 1572.
Debris flows are common mass-movement processes in most mountainous regions of the world, where their unpredictable and sudden occurrence represents a major threat to transportation corridors and settlements. Increased anthropogenic activity in regions exposed to debris-flow risk renders a detailed hazard assessment inevitable. However, archival data on past events remains scarce and, most of the...
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Thèse de doctorat : Université de Fribourg, 2005 ; no 1498.
Cities in France have known some very important changes since the beginning of the 20th century. Their growth is only a part of this development, as the main transformations are related to their forms and organisations. As new forms of urban living appear, new tools are developed to follow and understand the cities changes, and help to define them. Remote sensing is not properly speaking a new...
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Thèse de doctorat : Université de Fribourg, 2006 ; no 1530.
Allergic rhinitis as well as associated costs are constantly increasing, affecting a proportion always larger of the population across the world. Ragweed is a source of pollen well known for its high allergenic properties. Characterized by heavy emissions of the pollen in the air from August to October of each year, its allergenic potential is greatly enhanced. This study deals with the problems...
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Thèse de doctorat : Université de Fribourg, 2006 ; no 1531.
In urban design and planning, one can observe since 20 years the emergence of discourses about new territories. The traditional attitude considers the city as its exclusive object of reference and fosters the urban containment, in order to prevent sprawl. The one relative to new territories refuses to ignore this phenomenon and investigates new analytical and prospective approaches. Despite its...
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Basel und Genf, Neuchâtel : Georg, Delachaux & Niestlé, 1898
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Zürich : F. Schulthess, 1859
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Zürich : Orell Füssli, 1886
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Milano : presso Ant. Fort. Stella e figli, 1829-1834
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In: Earth Surface Processes and Landforms, 2006, vol. 31, no. 11, p. 1424 - 1437
Dendrogeomorphology was used to investigate past events on a cone affected by both debris flows and snow avalanches. We report on results of 520 cores from 251 injured Larix decidua Mill. and Picea abies (L.) Karst. trees sampled on the Birchbach cone (Swiss Alps). Detailed analysis of tree-ring sequences allowed dating of 561 growth disturbances in individual trees for a 252 yr...
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