128,206 research outputs found
Le infrastrutture per i trasporti in Africa tra conservazione, manutenzione e sviluppo
No full textLa realizzazione di infrastrutture è sempre stata utilizzata anche come forma di colonizzazione di territori. A partire dal caso africano, in questa pubblicazione si indaga il modo in cui tale fenomeno è avvenuto in alcune colonie tra Otto e Novecento e come questo, seppur in forme e con attori differenti, stia ancora avvenendo. Sulla scia di un lavoro pubblicato in questa stessa collana nel 2018 – Urbanistica e architettura moderne alla prova della contemporaneità. Sguardi sulle città coloniali e di fondazione –, l’obiettivo è riflettere sui possibili modi di rapportarsi con l’eredità di un passato per molti versi scomodo, di immaginarne il futuro prefigurandone forme di infrastrutturazione del territorio non come passepartout di un nuovo colonialismo politico, economico e culturale, ma come strumenti per uno sviluppo consapevole e sostenibile di territori spesso fragili
Asmara: Portraits of a Contemporary City
No full textArticoli / Articles
Jorge García Sánchez, The Promotion of Tourism in Carthage (Tunisia) during the American Archaeological Excavations (1921-1925)
Federico Cresti, Al-Jaghbūb, the Libyan Holy City of the Ṭarīqa al-Sanūsīya: A Photographic Reconstruction
Liliana Mosca, Fianarantsoa, la capitale du sud de Madagascar : de la ville royale à la ville coloniale
Dawit Abraha, Nelly Cattaneo, Cinzia Monopoli, Hielen Tekeste Berhe, Asmära: Portraits of a Contemporary Cit
Un'infrastruttura coloniale tra i simboli dell'Eritrea contemporanea: la ferrovia Massaua-Asmara
No full textThe object of the research concerns the history of infrastructures, landscapes and settlements derived from the
Italian colonial activity in Eritrea with a specific focus on the area connecting Massawa to Asmara, touching upon
the issue of their perception as a Heritage in contemporary Eritrean frame.
In printed sources all along the Italian colonial period, the issue of communications and transports stands out
for its paramount importance both for military reasons and for the so-called “messa in valore” of the newly
conquered territories. Although crucial for understanding relations between the development of settlements,
economic strategies and political relations, the communication system is not recurrent in present literature
about Eritrean colonial past, which is mainly focused on urban architectural heritage. Nevertheless for the
colonial administration and the Italian government, this branch of activities required relevant efforts in planning
and engineering, and it offers the opportunity to consider the results of the work of technicians enrolled in the
Genio Militare and Civile, and the contribution provided by Italian academics and companies of the time.
Moreover the landscape that slowly took shape is the evidence of a quite articulated relation between Italian
administration and coloni, and local inhabitants’ culture and traditions.
In the first part the study aims at outlining the development of communication infrastructures in Colonial Eritrea
as the result of several and sometimes contradictory projects for its military control and its economic
improvement, pointing out the relevance of the axis going from Massawa to Asmara. In the following part the
history of the infrastructures along this axis has been retraced: their past bears witness of the sequence of the
Italian policies concerning the Colony all along its historical process, and displays the technical and technological
knowledge acquired in Italy and adapted to the various conditions posed by the Eritrean territory. The
infrastructures are constituted of a road, which in 1941 was defined by the British “in every way a triumph of
engineering“, of a narrow gauge railway and of a ropeway, which was one of the longest in the world in the
Thirties: in different ways and in different steps, the road, the railway and the ropeway had impacts on the
territory which triggered transformations acted both by local people and by Italian coloni, and created peculiar
landscapes along the way. A specific study deals with the meaning of Colonial Heritage in Eritrean contemporary
context, which has peculiarities due to the role of colonial past in the process of emancipation from Ethiopia
and formation of Eritrean identity as a nation. The aim is to point out if and how the attention paid to the colonial
architectural heritage of Asmara (which entered the World Heritage List in July 2017) and in a different way to
the railway (a rehabilitation project was carried out from 1994 to 2002 on Eritrean initiative), can find a general
common ground and be transferred also on infrastructures and their remains, as well as on the cultural
landscape there defined
A new discrete dynamical system of signed integer partitions
No full textIn Brylawski (1973) Brylawski described the covering property for the domination order on non-negative integer partitions by means of two rules. Recently, in Bisi et al. (in press), Cattaneo et al. (2014), Cattaneo et al. (2015) the two classical Brylawski covering rules have been generalized in order to obtain a new lattice structure in the more general signed integer partition context. Moreover, in Cattaneo et al. (2014), Cattaneo et al. (2015), the covering rules of the above signed partition lattice have been interpreted as evolution rules of a discrete dynamical model of a two-dimensional p-n semiconductor junction in which each positive number represents a distribution of holes (positive charges) located in a suitable strip at the left semiconductor of the junction and each negative number a distribution of electrons (negative charges) in a corresponding strip at the right semiconductor of the junction. In this paper we introduce and study a new sub-model of the above dynamical model, which is constructed by using a single vertical evolution rule. This evolution rule describes the natural annihilation of a hole-electron pair at the boundary region of the two semiconductors. We prove several mathematical properties of such new discrete dynamical model and we provide a discussion of its physical properties
Non-symplectic involutions on manifolds of K3[n]-type
No full textWe study irreducible holomorphic symplectic manifolds deformation equivalent to Hilbert schemes of points on a K3 surface and admitting a non-symplectic involution. We classify the possible discriminant quadratic
forms of the invariant and coinvariant lattice for the action of the involution on cohomology and explicitly describe the lattices in the cases where the invariant lattice has small rank. We also give a modular description of all d-dimensional families of manifolds of K3[n]-type with a non-symplectic involution for d > 19 and n 6 5 and provide examples arising as moduli spaces of twisted sheaves on a K3 surface
PRIMITIVE DECOMPOSITIONS OF DOLBEAULT HARMONIC FORMS ON COMPACT ALMOST-KAHLER MANIFOLDS
No full textLet (X, J, g, ω) be a compact 2n-dimensional almost-Kähler manifold. We prove primitive decompositions of ∂-, ∂ ̄-harmonic forms on X in bidegree (1, 1) and (n − 1, n − 1) (such bidegrees appear to be optimal). We provide examples showing that in bidegree (1, 1) the ∂- and ∂ ̄-decompositions differ
Sir Thomas Elyot’s “Book of the Governor” and the Etymological Awareness of Things
No full textSir Thomas Elyot’s “Book of the Governor” and the Etymological Awareness of Thing
Adulis (Eritrea) - criticità e peculiarità di un sito complesso nel Corno d'Africa
No full textPeculiarità e potenzialità del sito di Adulis
Il sito di Adulis, sulla costa sud occidentale del Mar Rosso, rappresenta
uno dei complessi di evidenze materiali e cronologiche più complete del Corno d’Africa: una città-emporio di oltre 40 ettari che si conserva, pressoché
integra, sotto alcuni metri di limo e sabbia. Dal 2011 è operativa la missione
internazionale italo-eritrea, nata per volere delle Autorità Eritree che hanno
affidato al Centro Ricerche sul Deserto Orientale (Ce.R.D.O) di Alfredo e
Angelo Castiglioni la direzione della missione, anche con la finalità di creare il
primo parco archeologico nazionale dell’Africa Sub Sahariana (Bortolotto
et al. 2013; Castiglioni et al. 2013, 2018). Il progetto coinvolge, accanto al
Museo Nazionale dell’Eritrea e al Museo di Massaua, quattro atenei italiani:
l’Università Cattolica di Milano, l’Università Orientale di Napoli, il Politecnico
di Milano, l’Università dell’Insubria; inoltre il Pontificio Istituto di Archeologia Cristiana (PIAC) del Vaticano. La missione, finanziata dall’Eritrea, dal
Ce.R.D.O., da Piccini Group e dal PIAC ha ricevuto contributi MAECI dal
2012 ed è sostenuta dall’ISMEO
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