vascular tone as a tunable parameter to improve drug delivery. Philippe Martinive, Julie DeWever, Caroline Bouzin, *Christine Baudelet, Pierre Sonveaux, Vincent Grégoire, *Bernard Gallez and Olivier Feron. Unit of Pharmacology and Therapeutics (FATH 5349), *Laboratory of Biomedical Magnetic Resonance; Center for Molecular Imaging and Experimental Radiotherapy, University of Louvain (UCL) Medica...

Chemotaxis is the process by which cells behave in a way that follows the chemical gradient. Applications to bacteria growth, tissue inflammation and vascular tumours provide a focus on optimization strategies. Experiments can characterize the form of possible chemotactic sensitivities. This paper addresses the recovery of the chemotactic sensitivity from these experiments while allowing for no...

Mapping the complex heterogeneity of vascular tissue in the brain is important for understanding cerebrovascular disease. In this translational study, we build on previous work using vessel architectural imaging (VAI) and present a theoretical framework for determining cerebral vascular function and heterogeneity from dynamic susceptibility contrast magnetic resonance imaging (MRI). Our tissue ...

LUCIA, a new Italian talking head based on a modified version of the Cohen-Massaro’s labial coarticulation model is described. A semi-automatic minimization technique, working on real cinematic data, acquired by the ELITE optoelectronic system, was used to train the dynamic characteristics of the model. LUCIA is an MPEG-4 standard facial animation system working on standard FAP visual parameter...

We present the first fair e-cash system with a compact wallet that enables users to spend efficiently k coins while only sending to the merchant O(λ log k) bits, where λ is a security parameter. The best previously known schemes require to transmit data of size at least linear in the number of spent coins. This result is achieved thanks to a new way to use the Batch RSA technique and a tree-bas...

We consider the problem of estimating the length of a shortest path in a DAG whose edge lengths are known only approximately but can be determined exactly at a cost. Initially, each edge e is known only to lie within an interval [le; he]; the estimation algorithm can pay ce to nd the exact length of e. In particular, we study the problem of nding the cheapest set of edges such that, if exactly ...

At Crypto 2013, Coron, Lepoint, and Tibouchi (CLT) proposed a practical Graded Encoding Scheme (GES) over the integers, which has very similar cryptographic features to ideal multilinear maps. In fact, the scheme of Coron et al. is the second proposal of a secure GES, and has advantages over the first scheme of Garg, Gentry, and Halevi (GGH). For example, unlike the GGH construction, the subgro...

We construct the first constant-size hierarchical identity-based signature (HIBS) without random oracles the signature size is O(λs) bits, where λs is the security parameter, and it is independent of the number of levels in the hierarchy. We observe that an efficient hierarchical identity-based signcryption (HIBSC) scheme without random oracles can be compositioned from our HIBS and Boneh, Boye...

The ordering of messages according to a given time measure is a largely discussed topic. Nevertheless, wireless or wired systems considering the order of messages do not use the access layer to accomplish this task. In this paper, we discuss the use of non-destructive bit-wise arbitration on the MAC layer for real-time message ordering in wireless sensor networks. With this access method, it is...