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See detailApplication of statistical shape analysis to the differentiation of cancers appearing in childhood
Giebel, Stefan Markus; Schenk, Jens-Peter; Schiltz, Jang UL

Scientific Conference (2009, June 20)

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See detailGroup-based trajectory modeling and applications to eonomics
Guigou, Jean-Daniel UL; Lovat, Bruno; Schiltz, Jang UL

Scientific Conference (2009, June 19)

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See detailLes pouvoirs des dirigeants de sociétés (plus spécialement anonymes) et leurs délégations
Corbisier, Isabelle UL

Conference given outside the academic context (2009)

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See detailAnonymity and Unlinkability in Electronic Communications
Fusenig, Volker UL

Doctoral thesis (2009)

Imagine a set of communication partners wants to keep their communication links secret. Consider the case where untrustworthy parties are able to observe every communication, which implies not only that ... [more ▼]

Imagine a set of communication partners wants to keep their communication links secret. Consider the case where untrustworthy parties are able to observe every communication, which implies not only that they can detect the content of the communication, but also who is communicating and who is listening. Using this information, the untrustworthy parties try to link communicating parties. This, in a nutshell, is the problem of anonymous and unlinkable communication in computer networks. By use of encryption techniques the content of messages can be kept private. However, the communication links can still be detected. Since the addresses of sending and receiving parties are contained in the header of every message sent over the network, an untrustworthy party needs only to eavesdrop a single message of the communication in order to link sender and receiver. Additional techniques have to be used to hide this information. We address this problem in this thesis. We define measures for anonymity and unlinkability that are based on the information theoretic notion of entropy. These measures are used first to evaluate different approaches for anonymous and unlinkable communication and second, to show the effectiveness of attacks on these protocols. We present existing techniques for anonymous and unlinkable communication and highlight weak points of these techniques by applying attacks to them. In these attacks, known as traffic analysis attacks, the attacker basically tries to collect as much information about the communication as possible and then makes deductions concerning the communication links. We show that these traffic analysis attacks are applicable to many existing techniques. Furthermore, we introduce a new traffic analysis attack, namely the slotted packet-counting attack. Motivated by these findings, we present a protocol for unlinkable communication in computer networks. We prove that this protocol leaks no information on communication links in the case where attackers are able to observe any communication in the network. By this means, the protocol guarantees a user-defined degree of unlinkability. We also show that the protocol generates a minimal amount of extra messages for achieving a given degree of receiver anonymity, i.e. where an attacker is not able to detect the receiver of a message. [less ▲]

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See detailDiagnosi precoce delle demenze in medicina generale
Marzo, Carla; Lygidakis, Charilaos UL

in MD. Medicinae Doctor (2009)

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See detailSuccessful and Unsuccessful Intergenerational Transfer of Educational Attainment on Wellbeing in the Swiss Youth Cohort TREE
Samuel, Robin UL; Hupka-Brunner, Sandra; Stalder, Barbara E. et al

Scientific Conference (2009, June 06)

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See detailGeoGebra
Hohenwarter, Markus; Borcherds, Michael; Kreis, Yves UL

Software (2009)

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See detailThe essential role of lipids in Alzheimer’s disease
Garcia, Pierre UL

in Biochimie (2009), 6

In the absence of efficient diagnostic and therapeutic tools, Alzheimer’s disease (AD) is a major public health concern due to longer life expectancy in the Western countries. Although the precise cause of ... [more ▼]

In the absence of efficient diagnostic and therapeutic tools, Alzheimer’s disease (AD) is a major public health concern due to longer life expectancy in the Western countries. Although the precise cause of AD is still unknown, soluble b-amyloid (Ab) oligomers are considered the proximate effectors of the synaptic injury and neuronal death occurring in the early stages of AD. Ab oligomers may directly interact with the synaptic membrane, leading to impairment of synaptic functions and subsequent signalling pathways triggering neurodegeneration. Therefore, membrane structure and lipid status should be considered determinant factors in Ab-oligomer-induced synaptic and cell injuries, and therefore AD progression. Numerous epidemiological studies have highlighted close relationships between AD inci- dence and dietary patterns. Among the nutritional factors involved, lipids significantly influence AD pathogenesis. It is likely that maintenance of adequate membrane lipid content could prevent the production of Ab peptide as well as its deleterious effects upon its interaction with synaptic membrane, thereby protecting neurons from Ab-induced neurodegeneration. As major constituents of neuronal lipids, n-3 polyunsaturated fatty acids are of particular interest in the prevention of AD valuable diet ingredients whose neuroprotective properties could be essential for designing preventive nutrition- based strategies. In this review, we discuss the functional relevance of neuronal membrane features with respect to susceptibility to Ab oligomers and AD pathogenesis, as well as the prospective capacities of lipids to prevent or to delay the disease. [less ▲]

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See detailMeaningful aggregation functions mapping ordinal scales into an ordinal scale: a state of the art
Marichal, Jean-Luc UL; Mesiar, Radko

in Aequationes Mathematicae (2009), 77(3), 207-236

We present an overview of the meaningful aggregation functions mapping ordinal scales into an ordinal scale. Three main classes are discussed, namely order invariant functions, comparison meaningful ... [more ▼]

We present an overview of the meaningful aggregation functions mapping ordinal scales into an ordinal scale. Three main classes are discussed, namely order invariant functions, comparison meaningful functions on a single ordinal scale, and comparison meaningful functions on independent ordinal scales. It appears that the most prominent meaningful aggregation functions are lattice polynomial functions, that is, functions built only on projections and minimum and maximum operations. [less ▲]

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See detailRégulation de la position d'une bille sur un plateau inclinable
Bernard, Nicolas UL

Bachelor/master dissertation (2009)

Le but de ce projet était d'étudier la régulation de la position d'une bille sur un plateau mobile, celui-ci devant être préalablement construit. Ce plateau est mobile en ceci qu'il peut s'incliner selon ... [more ▼]

Le but de ce projet était d'étudier la régulation de la position d'une bille sur un plateau mobile, celui-ci devant être préalablement construit. Ce plateau est mobile en ceci qu'il peut s'incliner selon ses deux axes, l'inclinaison étant contrôlable par des moteurs. Le plateau est constitué (ou, comme ici, recouvert) d'une dalle tactile qui permet de connaître la position de la bille. Dans la fabrication de ce projet, il y a trois parties distinctes: - la partie mécanique; - la partie électronique; - la partie informatique, c'est-à-dire la programmation de la puce (un microcontrôleur dsPIC) qui contrôle le système. Toutefois, avant de parler de la fabrication elle-même, nous allons commencer par étudier ce système de manière théorique. C'est l'objet du premier chapitre. [less ▲]

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See detailStudent Freedom in University Life
Deca, Ligia UL

in Calzoari, Pier Ugo (Ed.) Past, Present and Future of the Magna Charta Universitatum. Proceedings of the Conference of the Magna Charta Observatory (2009, June)

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See detailThe smoothed extended finite element method for strong discontinuities
Natarajan, S.; Bordas, Stéphane UL; Rabczuk, Timon

Scientific Conference (2009, June)

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See detailL’accompagnement en formation professionnelle : quels défis ?
de Saint-Georges, Ingrid UL

Conference given outside the academic context (2009)

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See detailI2G API Specification
Kortenkamp, Ulrich; Kreis, Yves UL; Libbrecht, Paul et al

Report (2009)

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See detailEmission Allowances. Kyoto Protocol and Beyond
Lickova, Magdalena UL

Article for general public (2009)

Detailed reference viewed: 38 (4 UL)