Search results for "Frontier"
showing 10 items of 145 documents
Graphical models for estimating network determinants of multi-destination trips in Sicily
2017
Abstract This paper proposes a two-step approach for analysing the main determinants of multi-destination trip behaviour. It is based on a combination of graphical models and of a multinomial logistic regression model; the aim is to analyse direct and indirect effects of a wide set of tourist- and trip-related characteristics on multi-destination trip behaviour. Empirical data have been derived from a frontier survey of approximately 4000 incoming tourists in Sicily (Italy) at the end of their trip. Results suggest that multi-destination trips depend directly on the length of stay, the number of previous visits and motivation for the trip, and only indirectly on the interview month, travel …
Recensione di African Migrants and Europe. Managing the Ultimate Frontier di Lorenzo Rinelli
2016
SSPMO: A Scatter Tabu Search Procedure for Non-Linear Multiobjective Optimization
2007
We describe the development and testing of a metaheuristic procedure, based on the scatter-search methodology, for the problem of approximating the efficient frontier of nonlinear multiobjective optimization problems with continuous variables. Recent applications of scatter search have shown its merit as a global optimization technique for single-objective problems. However, the application of scatter search to multiobjective optimization problems has not been fully explored in the literature. We test the proposed procedure on a suite of problems that have been used extensively in multiobjective optimization. Additional tests are performed on instances that are an extension of those consid…
The undiscovered country from whose bourn some travelers do return. The final frontier in Poe and Dickinson.
2002
Paul.S.Derrick@uv.es El ensayo empieza comentando el relato de Poe, “MS. Found in a Bottle” como una expresión americana del concepto romántico de que la muerte es la fuente de toda imaginación y, como consecuencia, de toda obra de arte. También sugiere que este relato anticipa fenómenos culturales posteriores como la psicología freudiana y las novelas absurdas de Kafka y Beckett. Continua considerando hasta qué punto las diversas cuestiones que Poe trataba, a saber, la idea de la frontera aplicada a las líneas divisorias entre la razón y la sinrazón, entre el lenguaje y el silencio y, finalmente, entre la vida y la muerte, se ven reflejadas en la poesía modernista de Stevens y Eliot. Termi…
FRONTIER RESEARCH IN TORNEDALEN
1970
Publisher Summary This chapter highlights frontier research in Tornedalen. In view of the general alignment of the research carried on by ethnologists, it is a matter of course that a concentration of interest to regions with administrative boundaries of such a marked character as, for example, national frontiers may often give a sharper relief to the problems considered. The interest in questions around such boundaries here leads to inter-Nordic collaboration. This is what has happened in Tornedalen, the frontier zone between Finland and Sweden. The problems around a frontier dividing a coherent settled area make themselves felt in all sectors of human community life, and, they cannot be i…
A fuzzy ranking strategy for portfolio selection applied to the Spanish stock market
2007
In this paper we present a fuzzy ranking procedure for the portfolio selection problem. The uncertainty on the returns of each portfolio is approximated by means of a trapezoidal fuzzy number. The expected return and risk of the portfolio are then characteristics of that fuzzy number. A rank index that accounts for both expected return and risk is defined, allowing the decision-maker to compare different portfolios. The paper ends with an application of that fuzzy ranking strategy to the Spanish stock market.
L'interprétation des traités établissant la frontière
2016
Il lavoro si occupa del problema se l'interpretazione dei trattati che stabiliscono frontiere è sottoposta a principi particolari o se, al contrario, segue i principi comuni applicabili all'interpretazione dei trattati. La tesi esposta è che le particolarità dell'interpretazione in questo settore sono due. La prima cpmsoste nell'applicazione, accanto ai principi generali di natura metodologica fissati negli articoli 31-33 della Convenzione di Vienna sul diritto dei trattati, di un principio interpretativo sostanziale, e cioè il cd. principio della stabilità delle frontiere, anche se il suo ambito di applicazione è più ristretto di quanto possa a prima vista ritenersi. La seconda peculiarità…
Frontiera geografica e frontiere mentali nella «Saga di Eirik il Rosso»
2022
La «Saga di Eirik il Rosso» («Eiríks saga rauða») appartiene al gruppo delle “Family Sagas” ("Íslendinga sögur") dell’antica letteratura islandese. Essa si configura come un testo di straordinario interesse storico e antropologico perché contiene una delle più antiche narrazioni della penetrazione dei Vichinghi, prima in Groenlandia e poi nel Nuovo Continente (la cosiddetta Vinlandia), circa 500 anni prima della “scoperta” dell’America da parte di Cristoforo Colombo. Ma è anche un testo ricco di suggestioni che afferiscono alle dimensioni del magico, del meraviglioso, dell’immaginario, e insieme un’opera nella quale la “frontiera” geografica si fonde e si confonde – nella redazione scritta …
Le frontiere della rappresentazione
2010
La fortificación del Reino de Valencia en la década de1640 a la luz de la revolución militar
2019
This article proposes a study of the traditions in defensive architecture that concurred in the projects designed by Spanish military engineers for the fortification of the Valencian frontier in 1648 and 1649, in the context of the War of Catalonia (1640-1652). For this it is essential to follow the route of the Valencian adaptations to the military revolution in the matter of fortifications throughout the sixteenth century and compare them with those brought to Valencia in 1641 by the Marquis of Leganes and his engineers from the school of Milan.