905 research outputs found
Introduzione e Premessa a L. Longoni, A. Petrillo (a cura di) Fiumara: il nuovo polo urbano e la città
No full textUna riflessione sulla ricaduta sociale delle trasformazioni della zona detta Fiumara da area industriale a centro commercial
Disegno – Laboratori del primo anno
No full textIl volume illustra l’attività condotta all’interno dei Laboratori del disegno tenuti presso la Facoltà del Design del Politecnico di Milano. Prendendo a riferimento l’a.a. 2000/2001, esso non si configura come testo didattico quanto, piuttosto, come rendiconto di una sperimentazione didattica che ha progressivamente portato ad affiancare all’insegnamento tradizionale del disegno forme di rappresentazione non grafiche (fotografia, modellistica ecc), per approdare, attraverso gli anni, all’attuale formula del laboratorio multidisciplinare. Collocati al primo anno del corso di studi, tali laboratori propongono pertanto un approccio complessivo ai problemi della rappresentazione, privilegiando una metodologia didattica di tipo induttivo e tenendo conto delle specificità che l’insegnamento del disegno presenta in una scuola di design rispetto ad una facoltà di architettura o di ingegneria
Políticas de archivo desde la Red Conceptualismos del Sur: la experiencia del Archivo en uso de Roberto Jacoby
No full textIntervenció a càrrec de l' escriptora i doctora en Arts Anna Longoni, professora de la Universitat de Buenos Aires, en el marc del Primer Seminari Internacional 'Polítiques d'arxiu: la noció d'arxiu i les pràctiques artístiques contemporànies', celebrat a la Universitat de Girona els dies 19 a 21 de desembre de 20112317.mp4
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Configuration spaces are not homotopy invariant
No full textWe present a counterexample to the conjecture on the homotopy invariance of configuration spaces. More precisely, we consider the lens spaces L-7,L-1 and L-7,L-2, and prove that their configuration spaces are not homotopy equivalent by showing that their universal coverings have different Massey products. (C) 2004 Elsevier Ltd. All rights reserved
Shallow seismic investigations of an abandoned mine
No full textThe near-surface rock structure that covers an abandoned marl mine nearby the village of Montevecchia (Italy) was investigated through a combination of seismic surveys performed in two different survey campaigns. The methods selected for these investigations were Refraction Seismics and Multichannel Analysis of Surface Waves (MASW). A sort of transillumination experiment was also attempted. All the methods were successful and gave complementary information. Refraction seismics was used to characterize the shallower low velocity layers and a deeper high velocity layer of the near-surface structure. The MASW method was necessary to assess the existence of a velocity inversion revealing the presence of a low velocity layer between the faster layer identified by refraction seismics and a 4th high velocity layer covering the upper mine gallery. The transillumination experiment validated the presence of the 4th layer and gave an estimate of the average velocity that represents a lower boundary for the P-wave velocity within this layer. Both refraction and transillumination data were analysed to derive average estimates of attenuation level and rock quality factor
A NEW PERSPECTIVE FOR REGIONAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT
No full textLandslides pose a severe geohazard in many countries. The availability of inventories depicting the spatial and temporal distribution of landslides is crucial for assessing landslide susceptibility and risk in territorial planning or investigating landscape evolution. In the case of the Italian territory, several landslide hazard and risk maps were produced ranging from regional to national scale. This was made possible leveraging public domain data of the Italian Landslide Inventory (IFFI project; Trigila et alii, 2010), or other geodatabases spanning from local to regional scale. However, the practical utility of this inventory is often limited in many applications due to its spatial inhomogeneity or the use of different mapping methods and classification criteria. Despite the impressive advancements in techniques for assessing natural hazard susceptibility at a national scale over the past years, including statistical models, AI based models (i.e. Neural Networks) and others, the results are still limited by the quality of the data used. Specifically, the effectiveness of these models is closely tied to the quality of the landslide inventory utilized. Currently, recent regional landslide inventories could potentially enhance precision and accuracy compared to the national dataset, primarily owing to their finer resolution compared to the IFFI dataset. In this work, we present a new approach to assess landslide susceptibility at local scale, relying on regional landslide inventories. Using a data-driven technique, we propose to train a single model on a landslide inventory consisting of a composition of regional inventories selected to be representative of the national scenario. The weighted model is now capable of predicting landslide susceptibility in any study area across Italy. The entire analysis has been done using the SRT tool for Google Earth Engine and the SZ-plugin for QGIS. All the data used and processed are freely available and downloadable. The proposed approach has been tested in the framework of the PNRR RETURN project. The evaluation was conducted in two specific areas: the first one encompasses a section of the railway connecting Napoli to Bari (southern Italy), while the second focuses on areas impacted by the Marche region 2022 landslide event (central Italy). © Author(s). All rights reserved
Microseismic monitoring of an unstable rock face - Preliminary signal classification
No full textWe analyse signals collected by a microseismic monitoring network installed on an unstable rock face threatening the city of Lecco, in the North of Italy. We propose a classification process based on parameters computed in both time and frequency domains able to identify events possibly related to microseismic activity within the unstable rock mass and discard unwanted signals caused by meteorological conditions or other sources of noise. Our classification routine seems to be robust and the preliminary outcomes are in agreement with the findings reported in previous studies. We believe that further investigations together with the integration with a localization process of the significant microseismic events will improve our approach
Reliability of some items of a handedness performance test: differences between right and left handers.
No full textA 25-item handedness performance test was administered twice, at a one-month interval, to 85 elementary school children (60 right handers and 25 left handers in two different age groups). The laterality quotient distribution for right handers was more skewed and significantly different in central tendency and shape than the left handers' distribution. Mean point-biserial item-test correlation was 0.85. The test-retest correlation coefficient for the whole group was 0.79
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