AIMS The Frank-Starling mechanism (rapid response (RR)) and the secondary slow response (SR) are known to contribute to increases contractile performance. The contractility of the heart muscle is influenced by pre-load and after-load. Because of the effect of pre-load vs. after-load on these mechanisms in not completely understood, we studied the effect in isolated muscle strips. METHODS AND ...

The objective of this study was to investigate the physiological indices of competitive routines in women's artistic gymnastics by characterizing post-exercise heart rate (HR), oxygen uptake (VO2) and peak blood lactate concentration (Lmax) in a group of eight young elite-oriented female gymnasts. HR was continuously monitored with Polar RS400 monitors during the test event simulating a competi...

We calculate the bispectrum of the Cosmic Microwave Background (CMB) temperature anisotropies induced by the second-order fluctuations in the Boltzmann equation. In this paper, which is one of a series of papers on the numerical calculation of the bispectrum from the second-order fluctuations, we consider the terms that are products of the first-order perturbations, and leave intrinsically seco...

In this work we present the results of a study of spectral statistics for a classically integrable system, namely the rectangle billiard. We show that the spectral statistics are indeed Poissonian in the semiclassical limit for almost all such systems, the exceptions being the atypical rectangles with rational squared ratio of its sides, and of course the energy ranges larger than Lmax = h̄/T0, ...

In this paper, the classic job shop scheduling problem of minimizing makespan, J//Cmax, is studied. A heuristic approach is presented for solving the J//Lmax problem using an iterative deterministic simulation technique combined with simulated annealing. A simple transformation is provided for converting a J//Cmax problem to an equivalent J//Lmax problem. The approach is tested on some well-kno...

This paper presents an assessment of the vulnerability to erosion sandy coasts Vendée (W France). The hazard is assessed i) by long term measuring historical evolution shoreline between 1950 and 2016 ii) short instantaneous retreats due extreme events. method applied in this based on recommendations a methodological guide for coastal hazards (PPRL Guide: MEDDE, 2014). In Coastal Risk Prevention...

Figure 4-2. A logarithmic plot of the size at sex change (L50) versus maximum size (Lmax) for 52 species of sex changing fish. .

Orienteering is the following optimization problem: given an edge-weighted graph (directed or undirected), two nodes s, t and a time limit T , find an s-t walk of total length at most T that maximizes the number of distinct nodes visited by the walk. One obtains a generalization, namely orienteering with time-windows (also referred to as TSP with time-windows), if each node v has a specified ti...

New donor–acceptor polymers containing disilanobithiophene (DSBT) as the donor and pyridine or pyrazine as the acceptor with or without a thiophene spacer were prepared. The polymers showed UV-vis absorption maxima at lmax 1⁄4 488–526 nm, which were red-shifted relative to those of model monomers dithienylpyridine and dithienylpyrazine (lmax 1⁄4 352–375 nm), indicating the efficient conjugation...

Two agents located at distance D from each other on an infinite line want to meet. Thisproblem is known as the rendez-vous problem. In this paper, we study a version where themovements of the agents are not synchronized. To guarantee that the two agents can meet, weneed to break symmetry. To do so, we assign two different labels (binary strings) to the agents.We denote the lengt...