Alta Velocità Ferroviaria e concorrenza modale: il caso del trasporto regionale campano

In termini di mentalità, know-how e tecnologia, il sistema ferroviario italiano non è inferiore a nazioni prestigiose quali il Giappone o la Francia ma, in termini di realizzazione di nuove linee veloci, il nostro paese è piuttosto in ritardo rispetto al resto d’Europa. Basti pensare che la Francia, nonostante abbia inaugurato con 5 anni di ritardo rispetto all’Italia la prima linea ad alta velocità, è riuscita ad avere la nostra attuale estensione della rete AV con ben10 anni di anticipo! Con l’avvento del primo vettore passeggeri ad alta velocità in concorrenza a Trenitalia (2011), il processo di liberalizzazione verrà attuato in modo “quasi” sostanziale anche in questo comparto del trasporto ferroviario. Il percorso verso la liberalizzazione è stato tuttavia lungo e a tratti complesso. Tra le direttive CEE che hanno permesso questo processo, vanno ricordate la n. 440 del 29 luglio 1991, con la quale si voleva incidere sull’assetto organizzativo delle Imprese Ferroviarie (IF) degli Stati membri e si individuavano spazi adeguati per il lancio di un’effettiva liberalizzazione del trasporto ferroviario, riconoscendo alle associazioni internazionali di IF il diritto di accesso e di transito12 negli Stati membri di tali associazioni in relazione a tutte le tipologie di servizi: trasporto internazionale passeggeri e merci, sia tradizionale che combinato

Editorial Port Management Studies

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Il benchmarking di un terminal container: il posizionamento competitivo dei terminalisti in Liguria

Le analisi di questo paper mirano a delineare un quadro conoscitivo sullo stato dell’offerta dei terminal container nell’ambito competitivo europeo. In particolare, tale studio si prefigge di identificare i punti di forza e debolezza dei porti liguri rispetto ai principali competitor. A questo proposito occorre precisare che non esiste in letteratura un indicatore sintetico in grado di esprimere la dotazione delle risorse distintive di una catena del valore portuale. Soltanto recentemente ne è stato proposto uno per definire l’efficienza di un terminal container A fronte di tali considerazioni e delle fonti di informazioni disponibili (precarie quanto a significatività e a confrontabilità nello spazio), l’analisi della situazione dell’offerta dei maggiori terminal container europei è stata condotta secondo i seguenti criteri metodologici: delimitazione dell’ambito competitivo, ovvero individuazione degli scali europei, attuali e potenziali, in concorrenza con il sistema dei porti liguri; analisi e valutazione della capacità offerta mediante la costruzione di appositi indicatori di dotazione strutturale e di performance.container terminal, competitive positioning, benchmarkin

Temporal and spatial constructs in service firms' internationalization patterns: The determinants of the accelerated growth of Emerging MNEs

AbstractThe recent years have witnessed an unprecedented surge of Emerging Multinational Enterprises (EMNEs), i.e. firms from the emerging economies that have started internationalization very late and have expanded abroad in a rather accelerated fashion.In particular, pace and international diversification emerge as distinctive features of service EMNEs' successful internationalization patterns, inducing scholars to question the applicability of traditional internationalization theories to EMNEs. The Linkage–Leverage–Learning (LLL) Model and the springboard perspective identified some of the critical EMNEs uniqueness and investigated potential antecedents of their abnormal patterns. Nevertheless, previous contributions neglected to provide a solid empirical base for measuring spatio-temporal dimensions of EMNEs' internationalization.This paper aims to empirically investigate the dimensions affecting the pace at which EMNEs enlarge their geographic scope, by performing OLS regression analysis.The main outcomes demonstrate the crucial role of cumulative benefits from inward internationalization and inter-regional diversification strategies in boosting EMNEs' overseas expansion, in opposition to traditional MNEs (TMNEs). The results corroborate some assumptions of emerging theories on EMNEs, and provide insight for extending traditional MNEs theories by rethinking concepts, relations and causalities

Skills and competences in maritime logistics: managerial and organizational emerging issues for human resources

open4siopentheo notteboom, francesco parola, giovanni satta, teresina torreNotteboom, Theo; Parola, Francesco; Satta, Giovanni; Torre, Teresin

Influence of doping on the structural transformations of the proton conducting perovskite BaCe1 xYxO3-δ

From neutron diffraction it is known that the BaCeO3 perovskite undergoes a sequence of phase transformations from high temperature cubic C to rhombohedral R, to orthorhombic O1 (Imma) and to orthorhombic O2 (Pnma). Doping Y3+ on the Ce4+ site introduces charge compensating O vacancies (VO) that may be partially filled with OH complexes with exposition to H2O, so making the material an ionic conductor. Anelastic relaxation experiments have been carried out on samples doped with 2%Y and 10%Y; the real part s\u27(T) of the complex elastic compliance presents softenings at the transitions, and the loss s\u27\u27/s\u27 curves allow the content of VO and H to be monitored. Doping has a strong effect on the temperature of the Pnma/R transition: with 10%Y in the fully hydrated state TO1-R increases up to 750 K while after full outgassing falls to 500 K, meaning that the introduction of ~5% VO shifts the transition of 250 K. While the effect of cation substitution on the transitions temperature is easily explained in terms of simple arguments usually valid for perovskites based on bond length considerations, the remarkable stabilization of the R phase by VO requires to take into account the anomalous sequence of phase transitions of undoped BaCeO3, where the R structure transforms into orthorhombic Pnma on cooling with the loss of an octahedral tilt syste

Au/CeO2 Photocatalyst for the Selective Oxidation of Aromatic Alcohols in Water under UV, Visible and Solar Irradiation

Au nanoparticles supported on CeO2 have been prepared and investigated as photocatalysts for the photocatalytic selective oxidation of benzyl alcohol and 4-methoxybenzyl alcohol to the correspondent benzaldehydes, in aqueous suspensions and room conditions under UV, visible and natural solar light irradiation. Au nanoparticles have been supported by impregnation (1 and 3 wt.%) on two types of CeO2 (i.e., a commercial one and a home prepared oxide obtained in the presence of NaOH as precipitation agent). The Au impregnated samples showed strong visible radiation absorption at 565–570 nm associated to localized surface plasmon resonance (LSPR). The bare CeO2 samples are activated by UV light and resulted virtually inactive under visible irradiation, whereas the presence of Au improved both the conversion of the alcohols and the selectivity of the reaction towards the aldehyde, giving rise to good results, particularly under visible and natural solar light irradiation. The activity of the materials increased by increasing the Au content

A Prato Tour on Carbon Nanotubes: Raman Insights

[EN] The functionalisation of carbon nanotubes has been instrumental in broadening its application field, allowing especially its use in biological studies. Although numerous covalent and non-covalent functionalisation methods have been described, the characterisation of the final materials has always been an added challenge. Among the various techniques available, Raman spectroscopy is one of the most widely used to determine the covalent functionalisation of these species. However, Raman spectroscopy is not a quantitative technique, and no studies are reported comparing its performance when the same number of functional groups are added but using completely different reactions. In this work, we have experimentally and theoretically studied the functionalisation of carbon nanotubes using two of the most commonly used reactions: 1,3-dipolar cycloaddition of azomethylene ylides and diazonium-based radical addition. The number of groups introduced onto the tubes by these reactions has been determined by different characterisation techniques. The results of this study support the idea that data obtained by Raman spectra are only helpful for comparing functionalisations produced using the same type of reaction. However, they should be carefully analysed when comparing functionalisations produced using different reaction types.The authors acknowledge financial support from the Spanish government (project PID2020-113080RB-I00) and the Junta de Comunidades de Castilla-La Mancha (project SBPLY/21/180501/000135/1). This study forms part of the Advanced Materials program and was supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1) and by the Junta de Comunidades de Castilla-La Mancha. The work at the University of Malaga was funded by the MICINN (PID202-139548NB-I00) and by the Junta de Andalucia (P18-FR-4559) projects. The authors thankfully acknowledge the computer resources, technical expertise, and assistance provided by the SCBI (Supercomputing and Bioinformatics) centre of the University of Malaga. M. I. L. acknowledges her Juan de la Cierva Incorporacion grant (IJC 2018-035355-I) funded by MCIN/AEI/10.13039/501100011033. Funded with Aid for First Research Projects (PAID-06-22), Vice-rectorate for Research of the Universitat Politecnica de Valencia (UPV).Lucío, MI.; Giacalone, F.; La Parola, V.; Gámez-Valenzuela, S.; Muñoz-Alba, F.; Ruiz Delgado, MC.; Herrero, MA.... (2023). A Prato Tour on Carbon Nanotubes: Raman Insights. Chemistry - A European Journal. 29. https://doi.org/10.1002/chem.2023024762