Una piattaforma open source per la navigazione indoor: applicazione alla facoltà di ingegneria civile e industriale dell'università di Roma "Sapienza"

“Il conferire struttura e identità all’ambiente è una capacità vitale propria di tutti gli animali dotati di movimento” (Lynch, 1964). È proprio da questo che prende spunto l’idea del progetto qui proposto, dal tentativo di riproporre su un foglio il territorio che si abita, dando specifico ordine agli elementi; in quanto è proprio l’assenza di smarrimento e la capacità di orientarsi a darci un senso di equilibrio e benessere. “La stessa parola smarrito significa, nella nostra lingua, molto di più che semplice incertezza geografica: essa porta con sé sfumature di vera tragedia. […] si potrebbe obiettare, che il cervello umano è meravigliosamente adattabile. […] eppure, anche il mare ha il sole e le stelle, i venti, le correnti, gli uccelli e il colore dell’acqua senza i quali la navigazione sarebbe impossibile.” (Lynch, 1964) La cartografia riveste un ruolo di fondamentale importanza per tutti i dati di tipo geografico, i dati cioè che presentano come caratteristica principale un attributo spaziale; i fenomeni descrivibili a partire dal loro posizionamento vengono detti georeferenziabili. La cartografia, pertanto, si occupa dell'archiviazione (e della rappresentazione) di dati georeferenziabili; essa mira, dunque, a fornire una conoscenza del territorio sia di tipo puntuale che generale, a sviluppare processi logici in funzione di relazioni e a fungere da supporto di base per pianificazione, progettazione e gestione del territorio. (Brovelli, 2000) È in questo contesto che si inserisce il progetto in oggetto, nel tentativo di fornire uno strumento utile e potente che consenta al singolo utente di orientarsi in tempo reale, e quindi supportando la vera e propria navigazione, in aree non caratterizzate da copertura GNSS. Il progetto qui riportato propone l’utilizzo di una piattaforma open source per supportare la navigazione indoor, e ne mostra un’applicazione negli ambienti della facoltà di ingegneria civile e industriale dell’università di Roma “Sapienza”."Granting structure and identity to the environment is a vital capacity of all animals with movement." (Lynch, 1964) It is precisely from this that the idea of the project proposed here is inspired, by the attempt to propose the territory that people dwell on a sheet, giving specific order to the elements; as it is the absence of loss and the ability to orient ourselves to give us a sense of balance and well-being. "The same word lost means in our language much more than simple geographical uncertainty: it brings with it shades of true tragedy. [...] One might object, that the human brain is wonderfully adaptable. [...] Still, even the sea has the sun and the stars, the winds, the currents, the birds and the color of the water without which the navigation would be Impossible." (Lynch, 1964) Cartography plays a fundamental role for all geographic data, that are data which have a spatial attribute as the main feature; The phenomena that can be described starting from their positioning are termed georeferenced. Cartography, therefore, deals with the storage (and representation) of georeferencing data; it aims to provide a knowledge of both local and general territory, to develop logic processes based on relationships and to serve as a base for planning, planning and management of the territory (Brovelli, 2000). It is in this context that the project is inserted in an attempt to provide a useful and powerful tool that allows a single user to navigate, in real time, in areas without GNSS coverage. The project proposes the use of an Open Source platform to support indoor navigation and shows an application in the environments of the Faculty of Civil and Industrial Engineering at the University of Rome "Sapienza"

Outcomes of microsurgical clipping of recurrent aneurysms after endovascular coiling

OBJECT: The outcomes of microsurgery of previously coiled aneurysms are poorly described and little is known about what factors predict poor outcome. Therefore, we set out studying our case series to identify predictors of poor outcome following microsurgery for previously coiled recurrent aneurysms. METHODS: A retrospective cohort study from a prospectively maintained vascular database reviewing presentations, recurrent aneurysms measurements, surgery and outcomes of microsurgical clipping of recurrent previously coiled intracranial aneurysms. RESULTS: 39 patients (mean age 49 years, range 22-70 years) underwent microsurgical clipping of 40 previously coiled intracranial aneurysms. One patient suffered seizures, one transient neurological worsening and one hyponatraemia, none of whom had long-term sequelae. Two patients suffered postoperative infarcts giving an overall incidence of permanent morbidity of 5.1%. There were no deaths or rebleeds on follow up. In three patients, an attempt was made to remove the coil ball. These included the two patients with infarct and one with transient deficit. These patients had larger aneurysms (1106mm3 vs 135 mm3, p=0.005), with larger coil balls (257 mm3 vs 52 mm3, p=0.01) and wider necks (7.09 mm vs 2.69 mm, p=0.02) but smaller remnant heights (1.59mm vs 1.99mm, p=0.04). They were also more likely to have prolapsing coil loops (3/3 vs 3/27, p=0.016). CONCLUSIONS: Our study demonstrates good clinical outcomes from microsurgical clipping of recurrent aneurysms. In the vast majority of cases, clips can be applied primarily. Coil ball removal was associated with increased morbidity and should only be considered as a second line option and its likely need identified before surgery

30 years of the Contemporary European Studies Association of Australia (CESAA)

The establishment of the European Studies Association of Australia (CESAA) owes much of its emergence and vitality to changes in the new geo-political framework and especially to the end of the Cold War in Europe. With the fall of the Berlin Wall in 1989, followed by the end of the Soviet Union in 1991, the Maastricht Treaty deliberations in 1993 responded to these political changes. What captured the imagination of the world, including in Australia, with the Maastricht Treaty was the proposal for a single currency (the Euro) not to mention the embracement of a new name – The European Union (EU). These changes provided the twelve members of the European Community of the time a new global actor in the making. Australia, across the board began to engage with this entity and universities, scholars and others began to seek out the nature of the European Union. In this context came the association for European Studies which saw it had a voice for these European developments

The wedding of al-Hadhād and al-Ḥarūrā. Glimpses of paganism in Arabia

Here is an analysis of the tale of the marriage of al-Hadhād (of the Ḥimiar royal dynasty) with a woman of jinn found in Arabic sources dated from the 9th to 12th century. In the light of archaeological data and other folklore sources collected by scholars in the last 60 years (Serjeant, Daum, Rodionof), this tale could be interpreted as a foundation myth, with its strong anthropological and political implications, for the community of Maʾrib, the capital city and the main site of Sabaic religiousness in pre-Islamic times. It could also provide some keys of interpretation of a more general religious sensitivity in Arabia encompassing polytheistic or monotheistic creeds

A puzzling cue of Yūsuf Ḏū Nuwās: hypothesis on its interpretation and its connections with non-written languages of Yemen

A sentence recorded in Arabic sources (namely Wahb b. Munabbih and Ibn Isḥāq) about the story of Ḥimyarite king Ḏū Nuwās shows some features that may be interpreted as "South-Arabian", though they can hardly be ascribed specifically to one of the epigraphic languages we know. The suggested interpretation could be a little hint for a reflection on non-written languages of Yemen in Late Antiquity and early Islamic Age