A numerical framework designed to compute the blood flow in patientspecific human hearts is presented. The geometry of the heart cavities and associated wall motion are extracted from 4D medical images while the valves of the heart are accounted for thanks to low order geometrical models. The resulting blood flow equations are solved using a fourth-order low-dissipative finite-volume scheme and...

In this paper, we examine whether the business cycle plays a role in marriage and divorce. We use data on Spain, since the differences between recession and expansion periods across regions are quite pronounced in that country. We find that the unemployment rate is negatively associated with the marriage rate, pointing to a procyclical evolution of marriage; however the response of the divorce ...

We consider the problem of finding a fundamental cycle basis with minimum total cost in an undirected graph. This problem is NP-hard and has several interesting applications. Since fundamental cycle bases correspond to spanning trees, we propose a local search algorithm, a tabu search and variable neighborhood search in which edge swaps are iteratively applied to a current spanning tree. We als...

4 Countries with greater inequality typically exhibit less support for redistribution and greater 5 acceptance of inequality (e.g., US versus Western Europe). If individual nations evolve along this 6 pattern, a vicious cycle could form with reduced social concern amplifying primal increases in 7 inequality. Exploring movements around these long-term levels, however, this study finds mixed 8 ev...

This paper reports on an Action Research project that investigated the effect of introducing a number of Extreme Programming (XP) practices as teaching techniques to introductory programming students. The focus of the study was on using the XP practices to assist students in an introductory programming subject develop object oriented programming skills, problem solving skills and teach them to ...

Marine methylotrophs play a key role in the global carbon cycle by metabolizing reduced one-carbon compounds that are found in high concentrations in marine environments. Genome, physiology and diversity studies have been greatly facilitated by the numerous model organisms brought into culture. However, the availability of marine representatives remains poor. Here, we report the isolation of fo...

We report our experimental observations of the Shil’nikov-type homoclinic chaos in asymmetry-induced Chua’s oscillator. The asymmetry plays a crucial role in the related homoclinic bifurcations. The asymmetry is introduced in the circuit by forcing a DC voltage. For a selected asymmetry, when a system parameter is controlled, we observed transition from large amplitude limit cycle to homoclinic...

Introduction and motivation. Once a new technology is released to manufacturing, it still has numerous possibilities for improvement. Continuous defect density reduction is mandatory to fulfill customer’s quality requirements. Technology marginalities need to be detected and solved to improve line yields and secure on time delivery. The production cost needs to be reduced so that the technology...

In the mixed Chinese postman problem (MCPP), given a weighted mixed graph G (it may have both edges and arcs), our aim is to find a closed walk of minimum weight traversing each edge and arc at least once. The MCPP parameterized by the number of edges in G or the number of arcs in G is fixed-parameter tractable as proved by van Bevern et al. in 2014 and Gutin, Jones, and Sheng in 2014, respecti...

The objective of this study was to determine the effect of dietary phosphorus (P) concentrations of 0.38 (adequate) or 0.48% (excess) of the total mixed ration (TMR) (dry matter basis) on estrous behavior of lactating cows as measured by a radiotelemetric system (HeatWatch; De Forest, WI, USA). At calving, 42 Holstein cows (n=21 per treatment) were randomly assigned to one of two dietary P trea...