Periodicity in Dictyota at Naples

Periodicity of Downward Longwave Radiation at an Equatorial Location

A good understanding of the diverse mechanisms in the atmosphere is required in modelling the climate. In this study, the diurnal and seasonal patterns of all-sky downward longwave radiation (DLR) at Ilorin (8o 32l N, 4o 34l E), Nigeria were investigated alongside relative humidity (RH) and temperature. The average diurnal pattern of DLR gives an arc that begins by increasing gradually with som...

(Open)Mosix Experience in Naples

This document is a short report of the activities carried out by the computing centre of INFN, INFM and Dept. of Physics at University of Naples “Federico II”, concerning the installation, management and usage of HPC Linux clusters running (open)Mosix [1][2]. These activities started on small clusters, running a local copy of the operating system and evolved through the years to a configuration...

Periodicity and Almost-periodicity

Solar wind periodicity in energetic electrons at Saturn

[1] Fluxes of energetic electrons (110–365 keV) have been subjected to a long-term Lomb periodogram analysis from the middle of 2004 to the middle of 2009. Fluxes within 20 RS and outside the magnetopause were excluded, so only fluxes within the magnetosphere were included in the analysis. The periodicity ‘‘box’’ was expanded from 5 hours to 50 days. In addition to the familiar rotational perio...

Heterofucans from Dictyota menstrualis have anticoagulant activity.

Fucan is a term used to denote a family of sulfated L-fucose-rich polysaccharides which are present in the extracellular matrix of brown seaweed and in the egg jelly coat of sea urchins. Plant fucans have several biological activities, including anticoagulant and antithrombotic, related to the structural and chemical composition of polysaccharides. We have extracted sulfated polysaccharides fro...