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Université de Neuchâtel

An explicit approach to the Baum-Connes conjecture for some semi-direct products

Pooya, Sanaz ; Valette, Alain (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

We investigate the Baum-Connes assembly map through concrete examples. It is known that the Baum-Connes conjecture holds for large classes of groups including a-T-menable groups, thanks to work of Higson and Kasparov. However neither of these works describes the K-groups. In this thesis we describe explicitly the Baum-Connes assembly map for some a-T-menable groups namely BS(1, n), where...

Public access from Aug 3, 2019
Università della Svizzera italiana

Journalists arguing newsmaking decisions on the basis of anticipated audience uptake : a study of argumentation in the newsroom

Luciani, Margherita ; Rocci, Andrea (Dir.) ; Perrin, Daniel (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018COM006.

This thesis sets out to explore journalists’ anticipatory reasoning on audience uptake, i.e. on the ways in which the audience will react to news. In order to reach this goal, I conduct an argumentative analysis of various types of newsroom activities. The analysis sheds light on journalists’ reasoning processes concerning audience uptake that lead them to broadcast/publish one certain...

Università della Svizzera italiana

Reusing constraint proofs in symbolic analysis

Chen, Meixian ; Pezzè, Mauro (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO007.

Symbolic analysis is an important element of program verification and automatic testing. Symbolic analysis techniques abstract program properties as expressions of symbolic input values to characterise the program logical constraints, and rely on Satisfiability Modulo Theories (SMT) solvers to both validate the satisfiability of the constraint expression and verify the corresponding program...

Université de Neuchâtel

Fungal biogenic patina : optimization of an innovative conservation treatment for copper-based artefacts

Albini, Monica ; Joseph, Edith (Dir.) ; Junier, Pilar (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Microorganisms are often considered harmful for cultural heritage. However, they can also be used for its safeguarding. Indeed, some fungal species are known for their ability to produce oxalic acid in order to immobilize of toxic heavy metals and, therefore, detoxify their environmental. Biotechnology already exploited this ability to immobilize heavy metals in the field of waste treatment...

Public access from Jul 3, 2020
Università della Svizzera italiana

Strategies to access and manage donations for humanitarian operations

Urrea Castaño, Gloria Cecilia ; Maggi, Rico (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018ECO006.

Scarcity of funding and high competition among organizations are typical characteristics of the humanitarian setting, which create high uncertainty for humanitarian organizations (HOs) regarding their ability to access and manage the required donations for their operations. In contrast with past research, which usually considers that HOs have a passive role in the donations process, the main...

Université de Neuchâtel

Numerical simulations and uncertainty analysis for assessing spatial and temporal dynamics in alluvial river-aquifer systems : an application in the context of the 3rd Rhône River Correction

Gianni, Guillaume ; Brunner, Philip (Dir.) ; Perrochet, Pierre (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Characterizing river-groundwater interactions in alluvial aquifers is essential when forecasting the impact of river management strategies, such as river restorations, on the overall water resources distribution and dynamics. Therefore, the development of methods and calibration approaches that allow for better identification of the spatial and temporal characteristics of the hydraulic properties...

Università della Svizzera italiana

New architectures for very deep learning

Srivastava, Rupesh Kumar ; Schmidhuber, Jürgen (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO006.

Artificial Neural Networks are increasingly being used in complex real- world applications because many-layered (i.e., deep) architectures can now be trained on large quantities of data. However, training even deeper, and therefore more powerful networks, has hit a barrier due to fundamental limitations in the design of existing networks. This thesis develops new architectures that, for the...

Université de Neuchâtel

Efficient memory management with hardware transactional memory : a focus on Java garbage collectors and C++ smart pointers

Carpen-Amarie, Maria ; Felber, Pascal (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

With multi-core systems becoming ubiquitous in the last few years, lightweight synchronization and efficient automatic memory management are more and more demanded in the design of applications and libraries. Memory management techniques try to take advantage of the growing parallelism as much as possible, but the increasingly complex synchronization introduces considerable performance issues....

Università della Svizzera italiana

The role of context in human memory augmentation

Niforatos, Evangelos ; Langheinrich, Marc (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO005.

Technology has always had a direct impact on what humans remember. In the era of smartphones and wearable devices, people easily capture on a daily basis information and videos, which can help them remember past experiences and attained knowledge, or simply evoke memories for reminiscing. The increasing use of such ubiquitous devices and technologies produces a sheer volume of pictures and...

Università della Svizzera italiana

Corporate governance issues and performance of initial public offerings

Seistrajkova, Biljana ; Nowak, Eric (Dir.) ; Degeorge, François (Codir.) ; Habib, Michel (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018ECO005.

In my PhD thesis I analyze corporate governance issues of initial public offerings and their subsequent performance. In the first chapter I find that the first-day return of newly issued subsidiary stocks (equity carve-outs) is explained by the reporting distortions in the pre-IPO period, conditioned on whether the executives and directors of the subsidiary received stock options with an...