2,656 research outputs found
United Arab Emirates (UAE): Urban Landscape and Modern Heritage
No full textIn 1971, the six emirates of Abu Dhabi, Dubai, Sharjah, Ajman, Fujaira and Umm al-Quwain confederated into the United Arab Emirates (UAE). One year later, the emirate of Ras al-Khaima also joined. Over the years, the urban and economic expansion of the different emirates developed with diverse speed and characteristics, setting up dissimilar and peculiar territorial structures. This collection of essays aims at presenting an overall view of the urban landscape and of the built heritage of the UAE, from the first significant buildings of the sixties to nowadays, focusing mostly on the emirates of Abu Dhabi, Dubai and Sharjah, more relevant for dimension of urban phenomena and recent history. Three essays investigate Dubai, particularly interesting and controversial case-study for complexity and dynamics of urban and territorial development. Ruben Garcia Rubio’s text presents the fundamental work of British architect John Harris, author of Dubai’s first masterplans and of the first iconic buildings and urban landmarks, amongst them the World Trade Centre, built in 1979. Tiziano Aglieri Rinella presents, through unpublished documentation coming from the archives of the Museum of Finnish Architecture, the visionary competition project by Reima and Raili Pietilä for the Deira Sea Corniche of 1974 in Dubai, which for the first time was proposing the construction of artificial islands and canals, anticipating what will be achieved only many years later. Cristiano Luchetti discusses the complex issues and contradictions of the disconnected urban and territorial structure of Dubai, presenting some interesting recent proposals that attempt a reversal of trend in its strategies of urban development. Juan Roldan is concerned with the mutable and dynamic urban landscape of the emirate of Sharjah, that is committed in the construction of its own regional identity. To conclude, Marco Sosa shows a method for the documentation of modern heritage in the UAE, considering buildings of historical, religious and cultural value, that changes according to the individual characteristics of each specific building
The TDCpix Readout ASIC: A 75 ps Resolution Timing Front-End for the Gigatracker of the NA62 Experiment
No full textNA62 is an experiment under development at the CERN Super Proton Synchrotron, aiming at measuring ultra rare kaon decays. The Gigatracker (GTK) detector shall combine on-beam tracking of individual particles with a time resolution of 150 ps rms. The peak flow of particles crossing the detector modules reaches 1.27 MHz/mm 2 fora total rateof about 0.75 GHz.Ahybrid siliconpixel detectoris beingdevelopedto meet these requirements
John Harris and Dubai. Political insights, urban planning and architectural landmarks
No full textOnly 50 years ago, Dubai was a small village of fishermen and shopkeepers, lacking paved roads, running water and with few telephone lines. Today, it’s a fascinating and glimmering young city projected to the future. This rapid transformation has been the result of a complex set of economic and social dynamics and of strategic political choices. The sudden dis- covery of oil in the 60s was a turning point in the history of the city, as well as the raise to the power of Sheikh Rashid II bin Saeed Al Maktoum, which through the British architect John Harris, settled the first leading guidelines for the future expansion of Dubai.
Reliable advisor of the Sheikh, Harris was the author of the first masterplans in the 60s and 70s, an initial attempt to govern the city’s rapid growth and to establish a network of modern infra- structures. Formed under a Modernist sway at the AA in Lon- don, Harris was the designer of many of the first Dubai’s most prominent buildings, such as hospitals, banks, hotels, till one of its first urban landmarks: World Trade Centre, built in 1979.
This paper will attempt to unfold the political motivations behind the design choices undertaken by John Harris, which following Sheikh Rashid’s aspirations prepared Dubai to be- come a global city during the following decades
FIGURE 4 in Pelagia benovici sp. nov. (Cnidaria, Scyphozoa): a new jellyfish in the Mediterranean Sea
No full textFIGURE 4. Pelagia benovici sp. nov. (A) Rhopaliar pit (rp). (B) Portion of gastrovascular sinus showing radial septa (rs), subumbrellar perradial warts (sw), tentacular (tp) and rhopaliar (rhp) pouches, rhopalia (rh), and rounded marginal lappets. (C) Gastric filaments (gf), horse-shoe shaped gonads (g), and oral arm (oa) covered by transparent warts. (D) Enlargement of ribbon-like gonad (g) covered by cnidocyst warts (nw) bordering the stomach wall with emergent gastric filaments (gf).Published as part of Piraino, Stefano, Aglieri, Giorgio, Martell, Luis, Mazzoldi, Carlotta, Melli, Valentina, Milisenda, Giacomo, Scorrano, Simonetta & Boero, Ferdinando, 2014, Pelagia benovici sp. nov. (Cnidaria, Scyphozoa): a new jellyfish in the Mediterranean Sea, pp. 455-468 in Zootaxa 3794 (3) on page 461, DOI: 10.11646/zootaxa.3794.3.7, http://zenodo.org/record/491497
Produzione e scienza del progetto nella ricerca e nella didattica del Dottorato in Progettazione Architettonica (XVI CICLO)
No full textTesto in cui vengono esposti modi e ragioni della “scienza del progetto”, ricerca del Dottorato in Progettazione di Pasquale Culotta, elaborato con T. Aglieri Rinella, A. De Fazio, I. Lodato, V. Santangelo, G. Smeriglio
Effetto del substrato sulla tenacità di attacco e sulla predazione dei ricci Paracentrotus lividus (Lmk) nell’AMP Isola di Ustica.
No full textMultiple interannual records of young-of-the-year identify an important area for the protection of the shortfin mako, Isurus oxyrinchus
Full text linkThe shortfin mako (Isurus oxyrinchus) is the second most fishery-exploited pelagic shark in the Mediterranean Sea, thus its conservation status is a cause for concern. Despite the species has been listed in fishery and trade regulations to hinder its population decline, the lack of knowledge on its distribution patterns and habitats essential for its persistence still hampers the implementation of sound conservation actions. Combining data from local expert knowledge, opportunistic catch records, and Baited Remote Underwater Videos, we show evidence of the interannual presence of young-of-the-year (YOY) I. oxyrinchus in the Pelagie Archipelago (Central Mediterranean Sea). A total of twenty-one individuals ranging 71–92.5 cm FL were incidentally caught (on average 2.3 YOY/1000 hooks) or documented on BRUVS in July and August over three consecutive years. These data coupled with questionnaires administered to longline fishers identify one specific area used by YOY in the summer months. Our study presents the most abundant record of YOY shortfin makos in the Mediterranean Sea within such a restricted time and limited area providing important information for improving the protection of this critically endangered species
Reproductive and bloom patterns of Pelagia noctiluca in the Strait of Messina, Italy
No full textInvestigations on sexual reproduction of jellyfish are essential to understanding mechanisms and patterns of outbreaks formation. Pelagia noctiluca (Forskål, 1775) (Scyphozoa) is known as the predominant jellyfish species with direct development in Western and Central Mediterranean Sea. In this paper we used integrated morphometric, histological, and biochemical approaches to investigate the annual reproductive biology of P. noctiluca from the Strait of Messina (South Thyrrenian Sea), a key proliferation area for this species due to favourable temperatures and high productivity. From November 2011 to September 2012, P. noctiluca sexual reproduction occurred throughout the year, with two seasonal peaks (autumn, spring) of spawning and embryonic development. Gonads of female P. noctiluca were characterized by a large amount of mature eggs of small size (diameter < 200 μm) during high food availability, whereas fewer, larger eggs (diameter > 200 μm) were detected during low availability of prey. Two morphometric indexes were applied: the Gonad-Somatic Index (GSI, gonadal/somatic tissue dry weight ratio) and Fecundity Index (FI, n° eggs mm−2 * gonadal dry weight). The FI showed longer spawning periods than the GSI, providing a better causal-mechanistic explanation for the year-round occurrence of P. noctiluca in the Strait of Messina. Protein contents of the gonads changed seasonally, with the highest concentrations during the pre-spawning periods. We suggest that investigations on jellyfish sexual reproduction can provide biological information relevant for understanding mechanisms of jellyfish blooms as well as for the management of coastal zones affected by outbreaks of gelatinous species
Limited behavioural effects of ocean acidification on a Mediterranean anemone goby (Gobius incognitus) chronically exposed to elevated CO2 levels
Full text linkAn in situ reciprocal transplant experiment was carried around a volcanic CO2 vent to evaluate the anti-predator responses of an anemone goby species exposed to ambient (∼380 μatm) and high (∼850 μatm) CO2 sites. Overall, the anemone gobies displayed largely unaffected behaviors under high-CO2 conditions suggesting an adaptive potential of Gobius incognitus to ocean acidification (OA) conditions. This is also supported by its 3-fold higher density recorded in the field under high CO2. However, while fish exposed to ambient conditions showed an expected reduction in the swimming activity in the proximity of the predator between the pre- and post-exposure period, no such changes were detected in any of the other treatments where fish experienced acute and long-term high CO2. This may suggest an OA effect on the goby antipredator strategy. Our findings contribute to the ongoing debate over the need for realistic predictions of the impacts of expected increased CO2 concentration on fish, providing evidence from a natural high CO2 system
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