1,368 research outputs found
The Dark Knight (Il cavaliere oscuro, Christopher Nolan, 2008)
No full textIl saggio analizza il film di Christopher Nolan "The Dark Knight" ("Il cavaliere oscuro", 2008) ponendo in particolare rilievo le questioni che riguardano l'adattamento dalla fonte a fumetti
Giulia Veronica Varisco
No full textThe headword explains the biography and the contribution of the author Giulia Varisco to the children's literatur
Computational methods on food contact chemicals: Big data and in silico screening on nuclear receptors family
No full textEffect of aminergic signaling on the humoral innate immunity response of Drosophila
No full textBiogenic amines are crucial signaling molecules that modulate various physiological life functions both in vertebrates and invertebrates. In humans, these neurotransmitters influence the innate and adaptive immunity systems. In this work, we analyzed whether the aminergic neurotransmission of dopamine, serotonin, and octopamine could have an impact on the humoral innate immune response of Drosophila melanogaster. This is a powerful model system widely used to uncover the insect innate immunity mechanisms which are also conserved in mammals. We found that the neurotransmission of all these amines positively modulates the Toll-responsive antimicrobial peptide (AMP) drosomycin (drs) gene in adult flies infected with the Micrococcus luteus bacterium. Indeed, we showed that either blocking the neurotransmission in their specific aminergic neurons by expressing shibire(ts) (Shi(ts)) or silencing the vesicular monoamine transporter gene (dVMAT) by RNAi caused a significantly reduced expression of the Toll-responsive drs gene. However, upon M. luteus infection, the block of aminergic transmission did not alter the expression of AMP attacin genes responding to the immune deficiency (Imd) and Toll pathways. Overall, our results not only reveal a neuroimmune function for biogenic amines in humoral immunity but also further highlight the complexity of the network controlling AMP gene regulation
Dynamical blockade of a reservoir for optimal performances of a quantum battery
No full textThe development of fast and efficient quantum batteries is crucial for the prospects of quantum technologies. In the present paper we demonstrate that both requirements are accomplished in the paradigmatic model of a harmonic oscillator strongly coupled to a highly non-Markovian thermal reservoir. We show that at short times, a dynamical blockade of the reservoir prevents the leakage of energy towards its degrees of freedom, promoting a significant accumulation of energy in the battery with high efficiency. The possibility of implementing these conditions in LC quantum circuits opens up new avenues for solid-state quantum batteries
Strumenti collaborativi e partenariato pubblico-privato per la valorizzazione e lo sviluppo economico e sociale del patrimonio culturale nell'area adriatico-ionica
No full textLo scritto si sofferma sulle norme del Codice dei Beni Culturali, la disciplina dettata dalla legge n. 662/1996 e dall’art. 15 della l. 241/1990 circa le intese e il partenariato tra soggetti pubblici e soggetti privati per la gestione dei beni culturali che attualmente si sono dimostrati essere senza dubbio un ottimo sistema per le policy relative alla materia di cui sopra e, soprattutto, capaci di conseguire risultati migliori rispetto a quelli realizzati dal solo Stato centrale. Questa nuova modalità di gestione ha comportato una sorta di “rigenerazione” dei servizi locali attinenti alla cultura, verificandosi spesso importanti esperienze di successo. A tal proposito vengono riportati gli esempi più significativi di accordi per la valorizzazione e lo sviluppo del patrimonio culturale in Puglia e, in particolare, nell’area adriatico-ionica, tra cui i SAC e il circuito archeologico Taranto città sotterranea.The paper focuses on the rules of the Code of Cultural Heritage, the discipline dictated by law no. 662/1996 and art. 15 of the l. 241/1990 regarding agreements and partnerships between public and private entities for the management of cultural heritage which have currently proven to be without doubt an excellent system for the policies relating to the above matter and, above all, capable of achieving better results compared to those created by the central state alone. This new management method entailed a sort of "regeneration" of local services related to culture, often leading to successful experiences. In this regard, the most significant examples of agreements for the enhancement and development of cultural heritage in Puglia and, in particular, in the Adriatic-Ionian area are reported, including the SACs and the archaeological circuit Taranto underground city
Meliadus, «l’ami a la Dame du Lac», nella tradizione delle "Prophecies de Merlin" e dell’"Historia de Merlino"
No full textIl personaggio del cavaliere-scriba Meliadus, ami della Dama del Lago, incarna il simbolo di una nuova estetica romanzesca, sorta al crocevia tra il romanzo profetico merliniano e il romanzo arturiano. Il suo stesso nome, che fa eco a quello del padre, il re del Léonois, è il segno della sua incerta identità: la sua vocazione sembra essere quella di interpretare il ruolo del doppio, inserendosi in un sottile gioco di corrispondenze e di scarti intertestuali. In questo contributo ci si propone di disegnare un ritratto del personaggio a partire dalla tradizione francese delle Prophecies de Merlin per arrivare alle due redazioni della Historia de Merlino, rimaneggiamento italiano quattrocentesco che mostra un particolare interesse per il “nuovo arrivato”, come risulta dal processo di amplificazione a cui sottopone il suo ipotesto in alcune sezioni consacrate proprio a Meliadus
Ytterbium Disilicate/Monosilicate Multilayer Environmental Barrier Coatings: Influence of Atmospheric Plasma Spray Parameters on Composition and Microstructure
No full textfirst_pagesettingsOrder Article Reprints
Open AccessArticle
Ytterbium Disilicate/Monosilicate Multilayer Environmental Barrier Coatings: Influence of Atmospheric Plasma Spray Parameters on Composition and Microstructure
by Giulia Di Iorio,Laura Paglia *ORCID,Giulia PedrizzettiORCID,Virgilio GenovaORCID,Francesco MarraORCID,Cecilia BartuliORCID andGiovanni PulciORCID
INSTM Reference Laboratory for Materials and Surface Engineering, Sapienza University of Rome, Eudossiana 18, 00184 Rome, Italy
*
Author to whom correspondence should be addressed.
Coatings 2023, 13(9), 1602; https://doi.org/10.3390/coatings13091602
Original submission received: 10 August 2023 / Revised: 31 August 2023 / Accepted: 11 September 2023 / Published: 13 September 2023
Downloadkeyboard_arrow_down Browse Figures Review Reports Versions Notes
Abstract
SiC/SiC ceramic matrix composites (SiCf/SiC CMCs) are regarded as the new materials for the hot-section components of aircraft gas turbine engines, since they have one-third of the density of metallic superalloys, a higher temperature capability, good mechanical strength, and excellent thermal shock resistance. However, high-temperature water-vapor-rich combustion gases can induce severe surface recession phenomena in SiC/SiC leading to component failure. For this reason, it is necessary to design protective coatings, i.e., environmental barrier coatings (EBCs), able to protect the SiC/SiC surface in combustion environments. In the present work, ytterbium monosilicate (Yb2SiO5), stable when exposed to water vapor at high temperatures, and ytterbium disilicate (Yb2Si2O7), characterized by a thermal expansion coefficient closer to that of the substrate, were selected for a multilayer EBC system. EBCs were processed using the atmospheric plasma spray (APS) technique. A set of deposition parameters were tested, varying the power of the torch, and the composition and microstructure of the deposited coatings were studied in terms of porosity, crack density, and post-deposition phase retention by performing SEM, EDS, and XRD analysis. The results allow for the definition of the influence of deposition parameters on the final properties of multilayer EBC coatings
- …
