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Controlled field experiments were carried out for monitoring the emissions of three plastic commercial household waste bins, which were adapted for studying the effect of aeration process in the evolved volatiles, during house storing of green food waste for 2 weeks, prior to collection. Three experimental scenarios were examined based on no aeration ("NA,"(More)
The microbiological and physicochemical changes which occurred during the industrial fermentation and ripening of four batches of Greek dry salami manufactured without starter cultures were followed. Moderated dehydration rates, monitored by slowly decreasing relative humidity from 94 to 90% during fermentation, prevented the production of insufficiently(More)
A preliminary investigation on the possibility of using volatile organic compounds (VOCs) determination of expired air, blood and urine, for the early location of entrapped people in earthquakes, has been carried out. A group of 15 healthy subjects has been sampled. The identification of a common "core" of substances might provide indications of human(More)
UNLABELLED There is a controversy in the current literature concerning the age at menarche between scoliotic and nonscoliotic girls. The aim of this study is to elucidate this issue in the Mediterranean school aged girls. MATERIAL AND METHODS The menarche of 1,305 nonscoliotic girls (mean age 12,3 years, range 7,41 to 18,41 years, SD 2,5 years) and of 105(More)
We present an X-ray spectral analysis of a sample of 8 bona-fide Seyfert 2 galaxies, selected on the basis of their high [OIII]λ5007 flux, from the Ho et al. (1997) spec-troscopic sample of nearby galaxies. We find that, in general, the X-ray spectra of our Seyfert 2 galaxies are complex, with some our objects having spectra different from the 'typical'(More)
We present optical spectroscopic observations of the least-luminous known Seyfert 1 galaxy, NGC 4395, which was monitored every half-hour over the course of 3 nights. The continuum emission varied by ∼35 per cent over the course of 3 nights, and we find marginal evidence for greater variability in the blue continuum than the red. A number of diagnostic(More)
We present BeppoSAX observations of the starburst/Seyfert composite galaxy Mrk609. This enigmatic object has an optical spectrum dominated by the features of starburst galaxies, yet its X-ray luminosity (6.3×10 42 erg s −1) is typical of an AGN. The X-ray spectrum of Mrk609 can be parameterised by a single power-law model with a photon index Γ ∼ 1.6±0.1 and(More)
The design, development, and validation of a dynamic vapor generator are presented. The generator simulates human scent (odor) emissions from trapped victims in the voids of collapsed buildings. The validation of the device was carried out using a reference detector: a quadrupole mass spectrometer equipped with a pulsed sampling (PS-MS) system. A series of(More)
We present an analysis of the ROSAT and ASCA spectra of 21 broad line AGN (QSOs) with z ∼ 1 detected in the 2-10 keV band with the ASCA GIS. The summed spectrum in the ASCA band is well described by a power-law with Γ = 1.56 ± 0.18, flatter that the average spectral index of bright QSOs and consistent with the spectrum of the X-ray background in this band.(More)