Search results for "hell"
showing 10 items of 1035 documents
Oxidation of silicon nanoparticles produced by ns laser ablation in liquids
2014
The investigation of nanoparticles produced by ns pulsed Nd:YAG laser ablation of silicon in liquids is reported. Combined characterization by morphological and structural techniques shows that these nanoparticles have a mean diameter of ~3 nm and a core-shell structure consisting of a Si-nanocrystal surrounded by a layer of oxidized Si. Time resolved luminescence spectra evidence visible and UV emissions: a broad band around 1.9 eV originates from Si-nanocrystals, while two bands centered at 2.7 eV and 4.4 eV are associated with oxygen deficient centers in the SiO2 shell.
Nickel-Indium Sulphide Core-Shell Nanostructures Obtained by Spray-ILGAR Deposition
2013
Ni nanowires (NWs) of different lengths were fabricated by pulsed potentiostatic deposition within pores of polycarbonate membranes. After template dissolution, substrates underwent sequential Spray-ILGAR (R) depositions of thin indium sulphide films. The effect of deposition temperature was also investigated. For low number of deposition cycles, results showed complete and uniform covering of metal over the entire length of NWs, with formation of Ni - In2S3 core-shell structures. However, with increasing number of deposition cycles films became uneven and crusty, especially at higher temperatures, owing to the simultaneous formation of nickel sulfide. This drawback was almost eliminated do…
Electrodeposition and characterization of Mo oxide nanostructures
2015
Template electrodeposition has been used to grow uniform arrays of molybdenum oxide nanostructures in polycarbonate membrane. Several parameters have been investigated, like electrodeposition, time and solution pH. These parameters do not influence the nature of the deposit that always consists of mixed valence molybdenum oxides, whereas the nanostructure morphology changes with pH. In particular, at low pH (2.7), nanotubes are formed, whilst arrays of nanowires are obtained above pH 5.5. This change of morphology is likely due to H2 bubbles evolution during the electrochemical deposition, particularly occurring at low pH. It was found that fast removal of H2 bubbles through vigorous stirri…
Tsunami Propagation and Flooding in Sicilian Coastal Areas by Means of a Weakly Dispersive Boussinesq Model
2020
This paper addresses the tsunami propagation and subsequent coastal areas flooding by means of a depth-integrated numerical model. Such an approach is fundamental in order to assess the inundation hazard in coastal areas generated by seismogenic tsunami. In this study we adopted, an interdisciplinary approach, in order to consider the tsunami propagation, relates both to geomorphological characteristics of the coast and the bathymetry. In order to validate the numerical model, comparisons with results of other studies were performed. This manuscript presents first applicative results achieved using the weakly dispersive Boussinesq model in the field of tsunami propagation and coastal inunda…
I piccoli maestri de Luigi Meneghello o el ethos de la antirretórica
2015
I piccoli maestri, de Luigi Meneghello, publicado en Italia en 1964, supuso una novedad en el panorama de la literatura sobre la Resistencia armada al nazi-fascismo. Relato autobiográfico con un componente ensayístico, la obra del escritor de Malo (Vicenza) está animada por una carga ética, y política, que reposa -entre otras cosas' en dos categorías destacadas por el mismo autor: el antiheroísmo y la antirretórica. Esta última se convierte, en el fundamental trabajo de traslación de la experiencia de vida en la página literaria mediante el uso de una ironía distanciadora, en una concepción muy personal, transgresora y profunda a la vez, de la lucha partisana. Luigi Meneghello's I piccoli m…
The afterworld space in the "Poem strip" (1969) by Dino Buzzati
2018
L’obiettivo del contributo è l’analisi dello spazio oltremondano in Poema a fumetti(1969) di Dino Buzzati, graphic novelante-litteram. Buzzati riscrive, in chiave ultramoderna e laica, sia il mito di Orfeo ed Euridice, restituendo la centralità alla potenza della musica, sia il mito della discesa agli inferi, toposassoluto della letteratura italiana a partire da Dante e rappresentazione allegorica dell’oltretomba cristiano. In particolare Buzzati inventa una rappresentazione visiva dello spazio dell’aldilà dove sono essenziali due elementi: la continuità/discontinuità dei due mondi, nominalmente diversi, e le cornici che permettono il passaggio da un mondo all’altro. Il motivo ricorrente di…
Microbiological Characteristics of Wild Edible Mushrooms and Effect of Temperature during Storage of Morchella conica
2019
Background: The continuous worldwide increase of consumption of fresh mushrooms has registered in the recent years. The major goal of this study was to determine the microbiological characteristics of wild edible mushrooms and effect of temperature during storage of Morchella conica.
 Methods: Wild mushrooms of the species Boletus edulis, Cantharellus cibarius, and Leccinum aurantiacum were collected in a mixed forest of Picea abies, Betula pendula, and Pinus sylvestris located in Tartu territory, Estonia. Faecal indicators, potential pathogens, spoilage bacteria, and microfungi (yeasts and moulds) were evaluated. M. conica was microbiologically investigated for 24 days under different…
La cura di sé come pratica educativa: le radici ellenistiche
2012
The “self-care”, yet one of the ethical principles of the hellenistic philosophies, is read again with a kind of disenchanted and post-modern view. Through a comparision between the Hellenistic and the modern ages, we can say that the first one is marked by the crisis of the pòlis, and the second one is living out the end of the national state with a sense of anxiety. So, by following Epicuro and the Stoicism, is possible to recognize in the practice of the “self-care” a pedagogic resource through which the Subject can activate a self-inquiry process able to involve or commit others human beings, planting the seeds for a planetary consciousness.
Incoherent Yet Still Moral? Followers’ Perceptions of Their Leaders’ Integrity
2022
The aim of this study was to broaden the current understanding of leader integrity by applying a social-cognitive process model to leaders’ moral decision-making. Leaders (n = 223) were classified into different integrity styles (informational, normative, or diffuse-avoidant) based on their personal descriptions of how they approach moral questions and make moral decisions at work. We then investigated how followers (n = 963) perceived these leaders’ integrity (moral behavior, behavioral integrity, and consistency) and their leader-member exchange (LMX) quality by using a hierarchical leader-follower sample. Followers evaluated normative leaders to show the highest amount of consistency com…
Fine structure in the α decay of high-spin isomers in 155Lu and 156Hf
2018
Fine structure in the α decay of high-spin isomers in 155Lu(25/2−) and 156Hf (8+) has been studied for the first time using αγ -coincidence analysis. Three new α decays from 155Lu(25/2−) and two from 156Hf (8+) have been identified, populating seniority s > 1 states in the N = 82 nuclei 151Tm and 152Yb, respectively. The reduced hindrance factors of the α decays support the previous configuration assignments of the populated states. This is the first observation of states with excitation energy greater than 1.5 MeV being populated following α decay in nuclei outside of the 208Pb region. peerReviewed