Refine my results

Document type

  • Theses disable the filter

Language

Université de Neuchâtel

Semantic content in titi monkey alarm call sequences

Berthet, Mélissa ; Zuberbühler, Klaus (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

The comparative approach aims to understand the uniqueness of human language and how it evolved from primitive communication systems. Black-fronted titi monkeys Callicebus nigrifrons possess two soft alarm calls: A-calls are specific to threats within the canopy while B-calls are general calls emitted to terrestrial predators but also in non-predatory contexts, while moving near the...

Université de Neuchâtel

Large scale geometry of box spaces

Delabie, Thiebout ; Valette, Alain (Dir.) ; Khukhro, Ana (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Box spaces are metric space that are constructed using group. They are useful as examples of metric spaces with exceptional large scale geometric properties. In this thesis we further investigate box space.

Université de Neuchâtel

Hydrogeological characterization of karst aquifers in Switzerland using a pragmatic approach

Malard, Arnauld ; Jeannin, Pierre-Yves (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Recent studies reveal that karst aquifers represent a significant part of the Swiss groundwater reserve (120 km3) and resource (8.4 km3/year), although they only extend over 20% of the territory. On the one hand, high infiltration rates and large permeabilities of karstified rocks make karst aquifers highly interesting for water management. On the other hand, karst...

Université de Neuchâtel

Isoperimetric inequalities for Laplace and Steklov problems on Riemannian manifolds

Pétiard, Luc ; Colbois, Bruno (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

This thesis is about the spectra of the Laplacian and of the Dirichlet-to-Neumann operators on a compact Riemannian manifold. Both problems have physical interpretations that can be found in [Eva 1998] and [Ban 1980]. We focused on finding upper bounds for the eigenvalues, based on the geometry of the manifold. More precisely, we consider if it is possible to obtain upper bounds in which the...

Université de Neuchâtel

Erasure coding for distributed storage systems

Barbi, Roberta ; Mercier, Hughes (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2019.

A huge quantity of data is generated and stored every day. Preeminent examples are the 300 million photos that get uploaded daily to Facebook or the 156 million emails sent every minute. Furthermore, it is remarkable that almost 90% of the data in the world has been generated in the last 2 years. This humongous quantity of data is typically hosted in data centres located in different geographic...

Université de Neuchâtel

Hydrogeological and topographical controls on catchment dynamics and their implications for low flows

Carlier, Claire ; Brunner, Philip (Dir.) ; Hunkeler, Daniel (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Periods with scarce precipitation will likely occur more frequently and last longer under changing climatic conditions, even in relatively humid regions like Switzerland. To assess the sensitivity of water resources to dry spells and to identify regions that might experience water scarcity issues, a thorough understanding of the mechanisms governing catchment dynamics in the absence of rain is...

Université de Neuchâtel

Predicting the spatial correlation of daily streamflows to understand the hydrological response of river networks

Betterle, Andrea ; Schirmer, Mario (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Rivers are fascinating expressions of the hydrological cycle and their waters, riparian areas and floodplains harbor a multitude of ecosystems. The potential for rivers to sustain life depends on the dynamics of water quantity – and quality – that are critically controlled by catchment-scale geomorphoclimatic processes. In particular, the temporal and spatial availability of streamflows is...

Université de Neuchâtel

From Asia to Europe : evaluation of parasitoids for the biological control of the invasive fruit pest "Drosophila suzukii"

Girod, Pierre ; Turlings, Ted (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Agricultural processes are constantly improved to improve crop yields. However, 40% of crop productions are currently lost to pests each year. Insect pests are one of the main factors of these losses and their management is one of the top priorities that researchers are facing worldwide. An important part of these losses are caused by pest with alien origins. Globalization and climate change...

Université de Neuchâtel

Advances in characterizing surface water-groundwater interactions : combining unconventional data with complex, fully-integrated models

Schilling, Oliver S. ; Brunner, Philip (Dir.) ; Hunkeler, Daniel (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

The characterization and simulation of the interactions between surface water and groundwater require observations of hydrological state variables and flow processes. While the latest generation of physically-based flow models allows the integrated simulation of all relevant hydrological processes, the current modelling practice is not adequate to provide reliable predictions. Numerous studies...

Université de Neuchâtel

De la coutume au code : résistances à la codification du droit civil à Neuchâtel sous l'Ancien Régime

Wyssbrod, Adrien ; Christin, Olivier (Dir.) ; Dunand, Jean-Philippe (Codir.) ; Chaix, Gérald (Codir.) ; Tappy, Denis (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Civil law in the Principality of Neuchâtel remained customary throughout the “Ancien Régime”. Despite a seemingly strong desire to codify, successive princes of Neuchâtel were unable to get this custom written. Their dreams of codifications were totaly in accordance with the ideas of the Enlightenment and the sovereigns were supported by philosophers. Why, in a small principality like...