508 research outputs found
Sopravvivenza programmata. Etiche e pratiche di conservazione, dall'arte cinetica alla net art. Ediz. illustrata
No full textQuesto libro è il tentativo, unico nella sua completezza, di affrontare il nodo cruciale del rapporto “arte e tecnologia” dal punto di vista della conservazione, nella complessità delle sue articolazioni e nel suo sviluppo diacronico. Attraverso contributi ormai classici o redatti per l’occasione, il volume articola le teorie, le etiche e le pratiche della conservazione delle opere d’arte quando applicata a media effimeri, time-based, vincolati a tecnologie soggette a obsolescenza programmata e a infrastrutture dal ritmo evolutivo incessante. Dall’arte cinetica al video, dall’installazione interattiva alla Net Art, dalle collezioni agli archivi, si sollevano quesiti quali: cosa significa conservare? Chi ne è responsabile? Quali sfide devono affrontare i musei di arte contemporanea? Come si può programmare la durata?Contributi di: Laura Barreca, Laura Calvi, Valentino Catricalà, Alice Devecchi, Roberto Dipasquale, Ben Fino-Radin, Marialaura Ghidini, Oliver Grau, Jon Ippolito, Laura Leuzzi, Rafael Lozano-Hemmer, Alessandro Ludovico, Dorcas Müller, Stephen Partridge, Domenico Quaranta, Iolanda Ratti, Cosetta G. Saba, Domenico Scudero, Azalea Seratoni, Elaine Shemilt, Gaby Wijers
Andrena flavipes Panzer: dinamica di popolazione e preferenze florali in un’area dell’Italia nord-orientale
No full textAndrena flavipes Panzer: population dynamics and floral preferences in a north-eastern Italian area. We studied the population dynamics and floral preferences of Andrena flavipes Panzer (Hymenoptera, Apoidea, Andrenidae), a common wild pollinator bee in the Friuli Venezia Giulia region (north-eastern Italy). In the periods 1997-2000 and 2006-2012, from March to September periodical field observations were carried out on the occurrence and foraging activity of A. flavipes at four sites located near the city of Udine. During the observation periods, the occurrence of females and males of A. flavipes was constant between March and August with two peaks in May and July; these data are in agreement with the literature, where the species is indicated as bivoltine. In both generations, the proportions of males and females resulted variable in the different months. Adults of A. flavipes mainly visited flowering plants belonging to the Asteraceae family on which 49.3% and 67.9% of females and males were detected, respectively; moreover, adults were observed on plants of ten other families, such as Lamiaceae, Fabaceae and Apiaceae. In particular, the plants most visited by females were Galinsoga parviflora, Leucanthemum vulgare, Thymus vulgaris, Trifolium repens and Coriandrum sativum, while males were frequently observed on Taraxacum officinale, Crepis vesicaria and T. vulgaris. This species, therefore, is broadly polylectic. Since A. flavipes is an important and useful pollinator of both cultivated and wild plants, its occurrence in agroecosystems must be preserved with planned actions, such as the maintenance and restoration of meadows, hedgerows and uncultivated areas, where the species can find suitable nest sites and plentiful food sources, as well as the correct management of crop rotations
FIG. 4. — A in Coralline algae as environmental indicators: a case study from the Attard member (Chattian, Malta)
No full textFIG. 4. — A, Lithothamnion roveretoi Airoldi, 1932, transmitted light optical microscope (OM) photograph, thin section no. 4 (sample V20d, middle ramp); B, Lithothamnion/Phymatolithon sp. 1., OM photograph, thin section 17 (sample V56, inner ramp); C, Phymatolithon sp., OM photograph, thin section 10 (sample V37a, inner ramp); D, Lithothamnion/Phymatolithon sp. 2, OM photograph, thin section 18 (sample V57, inner ramp). Scale bars: 250 mm.Published as part of Quaranta, Francesca, Tomassetti, Laura, Vannucci, Grazia & Brandano, Marco, 2012, Coralline algae as environmental indicators: a case study from the Attard member (Chattian, Malta), pp. 151-166 in Geodiversitas 34 (1) on page 159, DOI: 10.5252/g2012n1a9, http://zenodo.org/record/459725
Coralline algae as environmental indicators: a case study from the Attard member (Chattian, Malta)
No full textalgae are present in the inner and middle ramp environments of the Attard member. Sporolithaceans and melobesioids dominate the inner ramp, while mastophoroids and peyssonneliaceans are subordinate. In the middle ramp the association of red algae is characterized by an increase of sporolithace-nas and a decrease of melobesioids, mastophoroids and peyssonneliaceans. These assemblages are related to the depth gradient existing from the inner relatively shallow to the progressively deeper middle ramp. However, transportation of red algae down slope may have had an effect on the red algae associations. The shape, morphology and structure of rhodoliths in the inner ramp environment are indicative of high-energy conditions. Nevertheless localized sectors of inner ramp are characterized by morphologies typical of low energy probably related to the presence of areas colonized by seagrass. Rhodoliths from the middle ramp have characteristics of moderately high-energy. The presence of Sporolithon Heydrich and Lithoporella (Foslie) Foslie indicates that the production of carbonate took place under tropical conditions. We suggest that the Mg/Ca ratios may had a control on the flourishing of coralline algae in the Oligocene carbonate factories situated in oligo- to mesotrophic conditions, whereas during Early to Middle Miocene times the trophic conditions were one of the main controlling factor.We investigated the distribution of the red algae assemblages along the depositional profile of the Attard carbonate ramp of Malta (Chattian). The Attard member is ascribed to the Lower Coral line Limestone Formation characterized by 4 members: Maghlaq, Attard, Xlendi and II Mara. Corallin
Architecture, Musical Composition and Performance: Some Thoughts on the Multiple Forms of a Difficult Relationship
No full textAnalisi del rapporto tra architettura, composizione musicale ed esecuzione musicale con particolare riferimento al Cinquecento venezian
Energy harvesting from electrospun piezoelectric nanofibers for structural health monitoring of a cable-stayed bridge
No full textWireless monitoring could greatly impact the fields of structural health assessment and infrastructure asset management. A common problem to be tackled in wireless networks is the electric power supply, which is typically provided by batteries replaced periodically. A promising remedy for this issue would be to harvest ambient energy. Within this framework, the present paper proposes to harvest ambient-induced vibrations of bridge structures using a new class of piezoelectric textiles. The considered case study is an existing cable-stayed bridge located in Italy along a high-speed road that connects Rome and Naples, for which a recent monitoring campaign has allowed to record the dynamic responses of deck and cables. Vibration measurements have been first elaborated to provide a comprehensive dynamic assessment of this infrastructure. In order to enhance the electric energy that can be converted from ambient vibrations, the considered energy harvester exploits a power generator built using arrays of electrospun piezoelectric nanofibers. A finite element analysis is performed to demonstrate that such power generator is able to provide higher energy levels from recorded dynamic loading time histories than a standard piezoelectric energy harvester. Its feasibility for bridge health monitoring applications is finally discussed
Opere d’arte in Sant’Antonio. Stucchi, marmi, affreschi fra Sei e Novecento
No full textIl contributo indaga, con il supporto di una ricca documentazione d’archivio, le vicende sei-settecentesche relative alla decorazione a stucco e agli altari marmorei della chiesa di Sant’Antonio di Lugano che videro coinvolte personalità come Luca Corbellini e Girolamo Rossi per gli interventi plastici, di gusto tardo manierista e barocco, e i Buzzi di Viggù per quelli in marmo realizzati fra gli anni Trenta e Quaranta del Settecento. Contestualmente, furono eseguite anche le pitture rococò del presbiterio, affidate ai fratelli Giovannini di Varese, per le architetture illusionistiche, e a Francesco Maria Bianchi per la figura. Alla metà degli anni Quaranta fu anche allestita la cappella dedicata a San Girolamo Emilani, fondatore della Congregazione Somasca, al tempo proprietaria dell’edificio e dell’annessa casa dei reliqiosi, con intervento pittorico dei fratelli Torricelli di Lugano
Edizione Nazionale delle opere di Andrea Gabrieli, Vol. 1 (Sacrae cantiones quinque vocum, 1565)
No full textVol. 1 of the Complete Works presents the 24 motets of the young Gabrieli’s first single-author collection, published by Antonio Gardano in 1565 and reprinted in 1572. 1584 and 1590. An appendix to the modern edition contains several variant readings inserted in the 1584 reprint, most likely formulated or at least approved by the composer
Juan de Valdés, Dialogo de la lengua
No full textIl volume propone un'edizione d'uso del Dialogo de la lengua di Juan de Valdés del 1536 (testo fondamentale nella storia della lingua spagnola) con grafia e punteggiatura modernizzate. Lo studio introduttivo ricostruisce i rapporti del Valdés umanista e della sua opera con la cultura letteraria italiana degli anni Trenta e Quaranta del Cinquecento e, in particolare, con il dibattito italiano sulla questione della lingua
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