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We investigate finite difference schemes which approximate 2 × 2 one-dimensional
linear dissipative hyperbolic systems. We show that it is possible to introduce some suitable modifications
in standard upwinding schemes, which keep into account the long-time behavior of the
solutions, to yield… |
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The search for longevity genes has greatly developed in recent years basing on the idea that a consistent part of longevity is determined by genetics. The ultimate goal of this research is to identify possible genetic determinants of human aging and longevity, but studies on humans are limited by a… |
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The paper proposes a new methodological approach for the product performance analysis into the actuarial context. Two indexes are proposed as restyled versions of the corresponding most popular ones: They have been adapted into the actuarial assessment preserving the plainness in the interpretation… |
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This work introduces a novel extension of the 0/1 Knapsack Problem in which we consider the existence of so-called forfeit sets. A forfeit set is a subset of items of arbitrary cardinality, such that including a number of its elements that exceeds a predefined allowance threshold implies some… |
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A model consisting of a kinetic equation for \run-and-tumble" biased bacteria motion,
coupled with two reaction-diusion equations for chemical signals, is studied. It displays time-
asymptotic propagation at constant velocity, i.e., aggregated travelling (exponential) layers. To
capture them for… |
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It is generally accepted that visual perception results from the activation of a feed-forward hierarchy of areas, leading to increasingly complex representations. Here we present evidence for a fundamental role of backward projections to the occipito-temporal region for understanding conceptual… |
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We study the linear post-Newtonian approximation to general relativity
known as gravitoelectromagnetism (GEM); in particular, we examine the
similarities and differences between GEM and electrodynamics.
Notwithstanding some significant differences between them, we find that a special nonstationary… |
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Small amounts of liquid deposited on a substrate are an everyday phenomenon. From a
theoretical point of view this represents a modelling challenge, due to the multiple scales
involved: from the molecular interactions among the three phases (solid substrate, liquid
film and surrounding vapor) to… |
