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This note investigates the sources of international differences in the levels of per capita health-care expenditure, using data on the OECD countries between 1975 and 2003. To that end, we use Theil's second measure of inequality for decomposing cross-country disparities in per capita health-care expenditure into the contributions of various factors:(More)
Models of neurons based on iterative maps allows the simulation of big networks of coupled neurons without loss of biophysical properties such as spiking, bursting or tonic bursting and with an affordable computational effort. These models are built over a phenomenological basis and are mainly implemented by the use of iterative two-dimensional maps that(More)
Tomographic transforms [1] refers to a new kind of linear transforms that use a different approach than traditional transforms such as the Cohen's Class or the Wigner distribution to obtain a representation of a signal in the time-frequency plane. The idea of tomography is to decompose the signal by using the eigenfunctions of linear combinations of(More)
Time-frequency tomograms have been used for denois-ing and component separation of neuronal signals [1]. Time-frequency tomograms are particularly appropriate to identify the time unfolding of the frequency features of the signals. However there are components of neuro-nal signals, as the neural signatures, that are not well represented by a clear spectral(More)