Search results for " Bran"
showing 10 items of 362 documents
A detailed spectroscopy of the carbon-rich star BD +57° 2161
2005
An LTE abundance analysis based on high-resolution spectra is presented for the carbon-rich star BD +57° 2161, whose evolutionary status is unknown. With [C/Fe] = +0.4 dex and a mean s-process overabundance of [s/Fe] ≃ +1.5 dex the peculiar atmospheric composition of BD +57° 2161 is confirmed. The 12 C/ 13 C abundance ratio was found to be about 10. The mild iron deficiency, [Fe/H] = -0.2, supports the idea that BD +57° 2161 could be an old-disk-population object. Radial-velocity measurements confirm the binary nature of the star. Therefore the peculiar chemical composition could be due to the mass transfer from the secondary - AGB star in the past. Orbital parameters are estimated for anot…
Study of Two BeppoSAX Observations of GX 340+0
2006
We present the results of two BeppoSAX broad band (0.1–200 keV) observations of the Z-source GX 340+0 comparing our results to those of a previous observation of the source. From the color–color diagram we selected three zones and extracted the source energy spectrum from each zone. We find that the model, composed by a blackbody plus a Comptonized component, absorbed by an equivalent hydrogen column of ~6 × 10 22 cm −2 , well fits the spectra in the energy range below 30 keV. At higher energies a power law component with photon index of 2.5 is observed. The associated flux decreases going from the horizontal branch to the flaring branch of the Z-track.
Self-Enrichment in Globular Clusters: Is There a Role for the Super-Asymptotic Giant Branch Stars?
2008
In four globular clusters (GCs) a non negligible fraction of stars can be interpreted only as a very helium rich population. The evidence comes from the presence of a "blue" main sequence in $\omega$ Cen and NGC 2808, and from the the very peculiar horizontal branch morphology in NGC 6441 and NGC 6388. Although a general consensus is emerging on the fact that self--enrichment is a common feature among GCs, the helium content required for these stars is Y$\simgt$0.35, and it is difficult to understand how it can be produced without any --or, for $\omega$ Cen, without a considerable--associated metal enhancement. We examine the possible role of super--AGB stars, and show that they may provide…
Radio-ejection and bump-related orbital period gap of millisecond binary pulsars
2005
The monotonic increase of the radius of low mass stars during their ascent on the red giant branch halts when they suffer a temporary contraction. This occurs when the hydrogen burning shell reaches the discontinuity in hydrogen content left from the maximum increase in the convective extension, at the time of the first dredge up, and produces a well known "bump" in the luminosity function of the red giants of globular clusters. If the giant is the mass losing component in a binary in which mass transfer occurs on the nuclear evolution time scale, this event produces a temporary stop in the mass transfer, which we will name "bump related" detachment. If the accreting companion is a neutron …
Lithium in the intermediate age cluster NGC 3680: Following Li evolution along the C-M diagram
2001
We present an analysis of high resolution spectroscopic observations (R 30 000, S=N =6 0 150) of 24 members of the intermediate age (1.5 Gyr) open cluster NGC 3680, covering all regions of the cluster colour-magnitude (C{M) diagram where cluster members are known to exist. These observations represent in many aspects challenges to our understanding of stellar interior and mixing. Four main sequence G stars have, within the errors, the same Li abundance, 0.3 dex lower than similar stars in the1 Gyr younger Hyades but comparable with those observed in the coeval cluster IC 4651. The cluster shows a clear Li-dip located around the turn-o; two stars on the upper part of the turn-o are out of th…
Procesos de «re-imageneering» turístico: el eclipse de la identidad local de Valencia
2011
Ostentación, abundancia y gusto por lo efímero son constantes de la naturaleza valenciana, región donde la creatividad fácil y desbordante se conjuga con una genuina vulgaridad de los sentidos. Valencia se ha mostrado siempre como un añejo escaparate natural, pero la frondosidad de su antigua huerta enmudece hoy ante ciudades temáticas de escasa raigambre en el territorio como la Ciudad de las Artes y las Ciencias. Los ciudadanos valencianos ya no se pueden identificar con marcas remitentes al «sol y playa», con abreviaturas aeroportuarias (VLC) o con eslóganes de un territorio que, tras hipotecar suelo, recursos y costumbres, sigue aún «dándote todo», según reza el eslogan turístico. Estud…
Application of White Mustard Bran and Flour on Bread as Natural Preservative Agents.
2021
In this study, the antifungal activity of white mustard bran (MB), a by-product of mustard (Sinapis alba) milling, and white mustard seed flour (MF) was tested against mycotoxigenic fungi in the agar diffusion method. The results obtained were posteriorly confirmed in a quantitative test, determining the minimum concentration of extract that inhibits the fungal growth (MIC) and the minimum concentration with fungicidal activity (MFC). Since MF demonstrated no antifungal activity, the MB was stored under different temperature conditions and storage time to determine its antifungal stability. Finally, an in situ assay was carried out, applying the MB as a natural ingredient into the dough to …
Aesthetics of Nutrition, Ethics of Animality: the Packaging of Vegan and Vegetarian Products in the Italian Organised Distribution Market
2018
The topic of this paper concerns the packaging of vegan and vegetarian products in the Italian organised distribution market. Large-scale organised distribution and vegetarianism's choice of packaging is related to current dietary trends which, as is often the case with eating choices and habits, intertwine as they massively spread. Which are the visual and verbal strategies that are adopted to give meaning, in the Italian culinary landscape, to vegan and vegetarian foods sold through large-scale distribution? The aim is to outline, through the methodology of Semiotics, the sensorial mechanisms and cultural grids that shape this food universe, and the way it interacts with other categories …
Communication students' motives for and attitudes towards personal branding
2015
Henkilöbrändäys ja profiloituminen ovat olleet pitkään eri alojen kuuluisuuksien etuoikeus. Sosiaalinen media on kuitenkin mahdollistanut henkilöbrändäyksen hyvin laajalle yleisölle. Onkin arvioitu, että sosiaalisen median kanavat ovat nykyisin pääasiallisia areenoita henkilöbrändäykselle. Lisäksi digitaalinen viestintä ja sosiaalinen media ovat luoneet uuden viestinnän muodon: yksilöiden joukkoviestinnän. Näin ollen näyttää siltä, että sosiaalinen media on ollut sekä henkilöbrändäys-ilmiön aiheuttaja että mahdollistaja. Informaatioteknologian vallankumouksen aikana on kasvanut myös kaksi uutta sukupolvea, joiden tavat käyttää teknologiaa eroavat merkitta…