Search results for "Fossa"

THE SIGNS OF WATER

2020

Signs of Water. A hidden waterscape in Palermo is recovered from the oblivion through a process consisting in a territorial analysis, a careful reading of ancient maps and historical archives, a deep design of new landscapes trancing the signs of the passage of water in a land where water has a permanent role along the centuries. A vast agricultural territory covers the Conca d'Oro valley, where lays the city of Palermo: rich in landscape, environmental and archaeological heritage, only some areas were subtracted from the intense construction and speculative activity that characterized the history of the city in the sixties and the seventies of the twentieth century. The main goal of this s…

Central dislocation of the jaw-joint into the middle cranial fossa

1981

Summary The authors' case of central dislocation of the jaw-joint is used to discuss the incidence, mechanism of causation and the problems of clinical diagnosis, and the possible lines of treatment are listed. The management of the central dislocation in our case consisted of surgical reduction of the articular process by means of traction with hooked retractors over a fulcrum in the molar region.

Head and Neck Blocks

1988

Continuous SO2 flux measurements for Vulcano Island, Italy

2012

<p>The La Fossa cone of Vulcano Island (Aeolian Archipelago, Italy) is a closed conduit volcano. Today, Vulcano Island is characterized by sulfataric activity, with a large fumarolic field that is mainly located in the summit area. A scanning differential optical absorption spectroscopy instrument designed by the Optical Sensing Group of Chalmers University of Technology in Göteborg, Sweden, was installed in the framework of the European project "Network for Observation of Volcanic and Atmospheric Change", in March 2008. This study presents the first dataset of SO<sub>2</sub> plume fluxes recorded for a closed volcanic system. Between 2008 and 2010, the SO<sub>2</…

Confrontation of cryptic diversity and mate discrimination within Gammarus pulex and Gammarus fossarum species complexes.

2014

16 pages; International audience; Freshwater amphipods Gammarus fossarum and Gammarus pulex are widespread in Europe, with some evidence of cryptic diversity in the former. We used DNA barcoding to assess genetic diversity within and among amphipod populations and examined mate discrimination and pre-copulatory pair formation between genetically divergent individuals. Eight distinct G. fossarum and four distinct G. pulex molecular operational taxonomic units (MOTUs) were detected. Among the 33 amphipod populations sampled, 11 contained a single MOTU, 11 had two and 11 were composed of three sympatric MOTUs. Genetic divergences between sympatric MOTUs (G. fossarum and G. pulex MOTUs combined…

Shaping the antipredator strategy: flexibility, consistency, and behavioral correlations under varying predation threat

2014

9 pages; International audience; Recent ecological and evolutionary research emphasizes the importance of adaptive trait integration. For instance, antipredator defenses are built up of several morphological and behavioral components in many species, yet their functional relationships are still poorly documented. Using field-collected freshwater crustaceans Gammarus fossarum in a within-subject design, we investigated the flexibility and consistency of refuge use, photophobia, and exploration behavior as well as their associations, quantified both when predation risk was absent or artificially simulated. In agreement with the "threat-sensitivity" hypothesis, both refuge use and photophobia …

Opening New Window in Upper Clival Region: Results from Anatomic Study.

2018

Considering its position located anteriorly to the brainstem, the retrosellar area, in particular the upper clival region and the interpeduncular cistern, is one of the most difficult regions to surgically approach. To date, many different operative solutions have been described, given that this region is attainable by both lateral and median approaches. Lateral routes include the frontolateral, subtemporal, and frontotemporozygomatic approaches with relative variants that have been extensively reported. Among the lateral approaches, the frontotemporozygomatic one is considered particularly useful because it allows better visualization of the retrosellar and suprasellar areas minimizing the…

The Dolia Defossa and viticulture at Vagnari

2022

At Vagnari, the fabric of the dolia defossa was distinctively different from that present in all the other ceramics from the site, as it was a distinctive orangey-red with black, glassy particles and reddish-brown grit fragments. The surviving lid fragment, on the other hand, is made of a fairly fine buff clay, suggesting it was made somewhere else. It is not unusual that dolia and lids might be made of different clays and in different workshops, as they are in Gallia Narbonensis, where some analysed lids were made in Rome, but the vessels were local. The recognition that it is important to conduct fabric analyses on dolia retrieved in archaeological excavations, whether on land or in the s…

Architetture per conservare la neve: dalle Madonie a villa Cattolica

2013

Fino a quando non sono stati inventati i moderni sistemi di refrigerazione, il compito di mantenere basse temperature è stato delegato a particolari architetture. Nella provincia di Palermo questo compito era affidato alla “fossa della neve." In generale trattasi di un ambiente sotterraneo in cui era conservata la neve, da utilizzare per la produzione di gelati e bevande fresche. La neve proveniva dalle “neviere” - “fosse della neve” presenti nelle montagne delle Madonie. In genere il commercio della neve ha rappresentato una voce importantissima nell’economia e in generale nella vita degli abitanti delle Madonie, soprattutto fra la fine del XVI e i primi decenni del XX secolo. A Palermo e …

Active moss monitoring allows to identify and track distribution of metal(loid)s emitted from fumaroles on Vulcano Island, Italy

2014

Abstract Volatile metal(loid)s are known to be emitted from volcanoes worldwide. We tested the suitability of active moss monitoring for tracking volatile metal(loid)s released from the fumarolic field on Vulcano Island, Italy, and differentiated fumaroles from other sources of gaseous and particulate trace elements such as sea spray and soil. Metal(loid) accumulation on the mosses per day did depend neither on the state of the exposed moss (dead or living) nor exposure time (3, 6, or 9 weeks). After collection, mosses were digested with either HNO3/H2O2 or deionized water and analyzed by ICP-MS. While for most elements both extraction methods yielded similar concentrations, higher concentr…