The influence of ecolabels and environmental information on fishery and aquaculture consumption

This paper investigates whether the exhibition of sustainable information (i.e., eco-labeling) influence the consumption of fishery and aquaculture products. Using data from the Eurobarometer survey (ebs-95.1) we explore the consumers’ environmental attitudes by tracking the trend in consumption of seafood products before/after the pandemic situation, with a focus on the products showing ecolabels

Giants on Deformed Backgrounds Part II: The Gauge Field Fluctuations

We study the full bosonic spectrum around giant and dual giant graviton probes in exactly marginally deformed backgrounds. Considering supersymmetric and non-supersymmetric three-parameter deformations of AdS_5 X S^5, we perform a detailed analysis of small fluctuations for both the expanded D3-brane configurations. In particular, we enhance the scalar spectra of frequencies found in our previous paper hep-th/0609173 with the important contributions brought by the gauge field fluctuations. The giant graviton case exhibits a non-trivial coupling between scalar and vector modes driven by the deformation, whose resolution yields to a universal correction of the undeformed spectrum. On the other hand, dual giant vibrations turn out to be completely decoupled. From our results one can also easily read the gauge field fluctuations in the undeformed (dual) giant graviton scenario.Comment: LaTex, 20 pages, 3 figures, uses JHEP

Metodo di processo digitale di un segnale audio e relativo sistema per uso in un impianto produttivo con macchinari

Lo scopo della presente invenzione è di processare l’audio di un impianto produttivo con macchinari, come un’officina meccanica per eliminare audio indesiderato e aumentare la concentrazione degli operatori addetti alla propria stazione di lavoro automatizzata. Lo scopo della presente invenzione è raggiunto tramite un metodo secondo la rivendicazione 1 e un sistema secondo la rivendicazione 7. In particolare, l’operatore seleziona a piacimento i suoni più fastidiosi dei macchinari e l’altoparlante indossabile ne cancella o riduce l’effetto tramite interferenza acustica attiva. Inoltre, vista la natura sostanzialmente semplice dei suoni selezionabili, la potenza di calcolo richiesta per l’elaborazione del segnale di interferenza acustica attiva può essere ottenuta tramite un processore disposto a bordo dell’altoparlante indossabile, che può essere una cuffia on-ear o around the-ear e prevedere anche inserti di materiale acusticamente isolante per uno smorzamento passivo dei suoni. Per motivi di sicurezza, è prevista inoltre una lista di allarmi sonori ambientali, ad esempio di evacuazione, antincendio, fuga di sostanze pericolose e/o di allarmi generati tramite una centralina elettronica di controllo del macchinario, in cui gli allarmi sono diversi dai suoni di avvertimento. I dati identificativi dei suoni di allarme non compaiono nella lista e sono sempre riprodotti se vengono individuati nelle fasi di separare e riconoscere. E’ inoltre prevista una configurazione in cui l’altoparlante indossabile è accoppiato in scambio dati tramite un codice identificativo con un microfono direzionale avente una posizione fissa e tale da captare i suoni di un unico macchinario. In questo modo, se esistono più macchinari identici affiancati e assegnati a operatori differenti, l’altoparlante indossabile portato da ciascun operatore riceverà segnali esclusivamente pertinenti dal proprio macchinario, riducendo i rischi di confusione. Altri vantaggi e caratteristiche della presente invenzione sono discussi nella descrizione e citati nelle rivendicazioni dipendenti

Mesons in marginally deformed AdS/CFT

We study the embedding of spacetime filling D7-branes in beta-deformed backgrounds which, according to the AdS/CFT dictionary, corresponds to flavoring beta-deformed N=4 super Yang-Mills. We consider supersymmetric and more general non-supersymmetric three parameter deformations. The equations of motion for quadratic fluctuations of a probe D7-brane wrapped on a deformed three-sphere exhibit a non-trivial coupling between scalar and vector modes induced by the deformation. Nevertheless, we manage to solve them analytically and find that the mesonic mass spectrum is discrete, with a mass gap and a Zeeman-like splitting occurs. Finally we propose the action for the dual field theory as obtained by star-product deformation of super Yang-Mills with fundamental matter.Comment: LaTex, 42 pages, 3 figures, uses JHEP

On the perturbative chiral ring for marginally deformed N=4 SYM theories

For \cal{N}=1 SU(N) SYM theories obtained as marginal deformations of the \cal{N}=4 parent theory we study perturbatively some sectors of the chiral ring in the weak coupling regime and for finite N. By exploiting the relation between the definition of chiral ring and the effective superpotential we develop a procedure which allows us to easily determine protected chiral operators up to n loops once the superpotential has been computed up to (n-1) order. In particular, for the Lunin-Maldacena beta-deformed theory we determine the quantum structure of a large class of operators up to three loops. We extend our procedure to more general Leigh-Strassler deformations whose chiral ring is not fully understood yet and determine the weight-two and weight-three sectors up to two loops. We use our results to infer general properties of the chiral ring.Comment: LaTex, 40 pages, 4 figures, uses JHEP3; v2: minor correction

Giants On Deformed Backgrounds

We study giant graviton probes in the framework of the three--parameter deformation of the AdS_5 x S^5 background. We examine both the case when the brane expands in the deformed part of the geometry and the case when it blows up into AdS. Performing a detailed analysis of small fluctuations around the giants, the configurations turn out to be stable. Our results hold even for the supersymmetric Lunin-Maldacena deformation.Comment: LaTex, 28 pages, uses JHEP3; v2: minor corrections, references added; v3: final version accepted for publication in JHE

On the Relationship Between the Optical Emission-Line and X-ray Luminosities in Seyfert 1 Galaxies

We have explored the relationship between the [O III] $\lambda$5007 and the 2--10 keV luminosities for a sample of Broad- and Narrow-Line Seyfert 1 galaxies (BLSy1 and NLSy1, respectively). We find that both types of Seyferts span the same range in luminosity and possess similar [O III]/X-ray ratios. The NLSy1s are more luminous than BLSy1s, when normalized to their central black hole masses, which is attributed to higher mass accretion rates. However, we find no evidence for elevated [O III]/X-ray ratios in NLSy1s, which would have been expected if they had excess EUV continuum emission compared to BLSy1s. Also, other studies suggest that the gas in narrow-line regions (NLR) of NLSy1s and NLSy1s span a similar range in ionization, contrary to what is expected if those of the former are exposed to a stronger flux of EUV radiation. The simplest interpretation is that, like BLSy1s, a large EUV bump is not present in NLSy1s. However, we show that the [OIII]/X-ray ratio can be lowered as a result of absorption of the ionizing continuum by gas close to the central source, although there is no evidence that intrinsic line-of-sight absorption is more common among NLSy1s, as would be expected if there were a larger amount of circumnuclear gas. Other possible explanations include: 1) anisotropic emission of the ionizing radiation, 2) higher gas densities in the NLR of NLSy1s, resulting in lower average ionization, or 3) the presence of strong winds in the the nuclei of NLSy1s which may drive off much of the gas in the narrow-line region, resulting in lower cover fraction and weaker [O III] emission.Comment: 18 pages, including 3 figures, 2 tables. Accepted for publication in The Astrophysical Journa