We have previously developed a conductive hydrogel for use as an intermediate between heart tissue and catheter tips in cardiac ablation, providing more uniform precisely shaped lesion with the goal of minimizing occurrence steam pops repeat procedures arrythmia patients. Characterization gel has involved repeated porcine hearts approximation ablation behavior human models. As this will require...

Our earlier renormalization group study of simplicial gravity is extended and the evidence for the existence of an isolated ultra-violet fixed point is strengthened. A high statistics study of the volume and coupling constant dependence of the cumulants of the node distribution is carried out. It appears that the phase transition of the theory is of first order, contrary to what is generally be...

We present results for the 2m spectroscopic part of the Multi-Site Spectroscopic Telescope campaign, which took place in May/June 2002. In order to perform an asteroseismological analysis on the multiperiodic pulsating subdwarf B star PG 1605+072 we used over 150 hours of time resolved spec-troscopy in order to search for and analyse line profile variations by using phase binning. We succeeded ...

This paper introduces a constant-time implementation for a quasi-cyclic moderate-density-parity-check (QC-MDPC) code based encryption scheme. At a 2 security level, the software takes 14 679 937 Cortex-M4 and 1 560 072 Haswell cycles to decrypt a short message, while the previous records were 18 416 012 and 3 104 624 (non-constant-time) cycles. Such speed is achieved by combining two techniques...

Sustainability Evaluation of Biodiesel Produced from Microalgae Chlamydomonas sp Grown in Brewery Wastewater Teresa M. Mata, Janaína Santos, Adélio M. Mendes, Nídia S. Caetano, António A. Martins LEPABE – Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto (FEUP), R. Dr. Roberto Frias S/N, 4200-465 Porto, Portugal Department of ...

Benchmark timings are presented for the fragment molecular orbital method on a Blue Gene/P computer. Algorithmic modifications that lead to enhanced performance on the Blue Gene/P architecture include strategies for the storage of fragment density matrices by process subgroups in the global address space. The computation of the atomic forces for a system with more than 3000 atoms and 44 000 bas...

In this paper we discuss challenges and design principles of an implementation of slot-based tasksplitting algorithms into the Linux 2.6.34 version. We show that this kernel version is provided with the required features for implementing such scheduling algorithms. We show that the real behavior of the scheduling algorithm is very close to the theoretical. We run and discuss experiments on 4-co...

Current implementations of process groups (subcommunicators) have non-scalable (O(group size)) memory footprints and even worse time complexities for setting up communication. We propose systemranked process groups, where member ranks are picked by the runtime system, as a cheaper and faster alternative for a subset of collective operations (barrier, broadcast, reduction, allreduce). This paper...