1,721,055 research outputs found
"Translatio Merlini": a French Merlin returns to England
No full textBerthelot Anne. "Translatio Merlini": a French Merlin returns to England. In: Bulletin des anglicistes médiévistes, N°76, Hiver 2009. pp. 1-19
Alcuni aspetti metodologici nello studio delle migrazioni interne. L'esperienza italiana 1969-79
No full textAnalisi spaziale di taluni aspetti dell'evoluzione demografica di una regione. Il caso "Marche
No full textAtti della XXIX Riunione Scientifica della S.I.S., vol.II, Tomo II, Bologn
L'evoluzione delle migrazioni interne italiane alla luce di alcuni modelli stocastici
No full textQuaderni dell'Istituto Matematico-Statistico, Facoltà di Economia e Commercio, Ancon
Una analisi critica dei sistemi locali del lavoro individuati dall’ISTAT
No full textThe Italian National Institute of Statistics (ISTAT) defines the Local Labour Systems (LLS) by aggregating municipalities through a procedure that matches information on place of residence and on job location. This territorial classification, although similar to the British approach, does not seem to meet the requirements of the original paradigm based on districts and metropolitan areas; this discrepancy may induce relevant ambiguities in terms of interpretation of the results. In this paper we compare the LLS proposed by ISTAT for the Marche region in 2001 to an alternative territorial classification that is based on the regular Markov chains theory. The results show that the common criticism on the interpretation of the LLS has not only a theoretical but also an empirical foundation. In particular, the territorial analysis proposed by the LLS seems to provide, in many cases, an insufficient and misleading comprehension of the phenomena of interest
A Fast Quasi-Conformal Mapping Preconditioner for Electromagnetic Integral Equations
Full text linkBoundary Element Methods (BEMs) are efficient strategies to numerically solve electromagnetic radiation and scattering problems. Unfortunately, however, classical BEM formulations suffer from ill-conditioning when the frequency is low, or the discretization density is high. In the past, several remedies have been presented for these ill-conditioning problems including preconditioners based on Calderón identities, hierarchical bases, and current decompositions. While effective, these strategies however require ad-hoc procedures including mesh-refinements, new basis function definitions, and adapted fast methods that, if not implemented properly, can become computationally cumbersome
Delimitazione delle regioni funzionali distinte per ramo di attivitá
No full textEd. Italo-Latino-Americana Palma, Palermo, 198
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