Search results for " WOOD"
showing 10 items of 239 documents
Solid state NMR investigation of the roman Acqualadroni rostrum: tenth year assessment of the consolidation treatment of the wooden part
2020
Abstract: This work follows a previous one dealing with the state of conservation study of the wooden part of the roman Acqualadroni rostrum soon after its finding in the seabed of Acqualadroni (Messina, Italy). The archaeological survey and recovery were particularly relevant since this artefact is one of the two rostrums, nowadays known,found together with its wooden part. Following the recovery, it was consolidated by immersion in a melamine-formaldehyde resin (Kauramin) aqueous solution for eight months at the “Centro di Restauro del Legno Bagnato” (Pisa, Italy). The present investigation is aimed to determine at microscopic scale the wood state of conservation and to highlight interact…
Presentazione
2018
Si presenta il volume di Calogero Ridulfo mettendo maggiormente in evidenza le notizie che arricchiscono la conoscenza del patrimonio artistico dell'ultimo scorcio del Medioevo a Corleone quando vi operavano importanti pittori, da Tommaso De Vigilia a Pietro Ruzzolone, affiancati da altri abili artisti ora sottratti dall'oblio The volume by Calogero Ridulfo is presented, highlighting the news that enriches the knowledge of the artistic heritage of the last part of the Middle Ages in Corleone when important painters worked there, from Tommaso De Vigilia to Pietro Ruzzolone, alongside other skilled artists now stolen from oblivion
Population response during an Oceanic Anoxic Event: The case of Posidonotis (Bivalvia) from the Lower Jurassic of the Neuquén Basin, Argentina
2019
Benthonic marine species show a wide range of biological reactions to seawater chemical changes through time, from subtle adjustments to extinction. The Early Toarcian Oceanic Anoxic Event (T-OAE) was recently recognized in the Neuquén Basin, Argentina, confirming its global scope. The event was identified chemostratigraphically on the basis of a relative increase in marine organic carbon and a characteristic negative carbon-isotope excursion (δ13Corg) in bulk rock and fossil wood in the upper Pliensbachian–lower Toarcian interval in the Arroyo Lapa section (Neuquén). Simultaneously with collection of lithological samples, a high-resolution biostratigraphical survey was carried out, and the…
Sapropel as a Binder: Properties and Application Possibilities for Composite Materials
2015
Recent development trends largely look for possibilities of a wider use of natural materials and local resources. In this perspective, the use of organic rich lake sediment - sapropel - as a binding material in line with other environmentally friendly filling materials can be considered as a challenge. Sapropel itself is a valuable resource with multiple areas of application, for example, medicine, veterinary, agriculture, livestock farming, balneology, cosmetic applications, construction, and its application options have been widely studied in the 20th century in the Baltic countries, Ukraine and Russia. Birch wood fibre and sanding dust, hemp shives, 'Aerosil' are used as a filler and thr…
Wood-inhabiting fungal responses to forest naturalness vary among morpho-groups
2021
The general negative impact of forestry on wood-inhabiting fungal diversity is well recognized, yet the effect of forest naturalness is poorly disentangled among different fungal groups inhabiting dead wood of different tree species. We studied the relationship between forest naturalness, log characteristics and diversity of different fungal morpho-groups inhabiting large decaying logs of similar quality in spruce dominated boreal forests. We sampled all non-lichenized fruitbodies from birch, spruce, pine and aspen in 12 semi-natural forest sites of varying level of naturalness. The overall fungal community composition was mostly determined by host tree species. However, when assessing the …
Biodiversity of the Sicilian Forests. Part I: the birds
2014
E stata censita la diversita delle specie ornitiche presente in alcune tipologie forestali della Regione Siciliana e la relazione tra le ornitocenosi, le scelte gestionali ed i diversi fattori abiotici e biotici. L’analisi della species richness (= numero delle specie) dimostra che essa e correlata con il bioclima, il diametro massimo degli individui arborei, il valore trofico di tutti gli strati di vegetazione ed il valore trofico dello strato arboreo. I boschi meso-supramediterranei sono piu ricchi di specie rispetto ai boschi termomesomediterranei. L’importanza del diametro massimo degli individui arborei, che esprime indirettamente anche il tipo di gestione di un bosco, viene spiegata d…
THE SAN VITO WOODEN PULPIT FROM MUSEO DIOCESANO OF PALERMO, ITALY: MULTIDISCIPLINARY APPROACH AND ANALYTICAL TECHNIQUES FOR DATING AND RESTORATION
2017
The aim of the present research is to investigate the constitutive materials and the execution techniques of San Vito wooden pulpit from Museo Diocesano of Palermo (Italy) and to provide helpful information to dating it in addition to technical, historical and artistic evaluations. The pulpit, attributed to unknown artist, belongs to the decorative arts and the most relevant feature is its double dating, in addition to the singular painting technique: it has a linear structure typical of XIXth century and three polychrome and gilded panels probably dated to the end of XVIIth century. This paper describes the application of analytical techniques (imaging diagnostics techniques, Scanning Elec…
Una mostra sui disegni di architettura siciliani del XVII e del XVIII secolo
2010
La mostra - e il relativo catalogo - dal titolo "Ecclesia Triumphans. Architetture del Barocco siciliano attraverso i disegni di progetto XVII-XVIII secolo" (Caltanissetta, 2009) a cura di M.R. Nobile, S. Rizzo, D. Sutera, si pone come momento di confluenza di due diversi percorsi di ricerca intrapresi da anni da Marco Nobile e dal suo gruppo di ricerca: lo studio dell'architettura chiesastica siciliana d'età moderna, con particolare riferimento al dibattito sulle chiesa madri tra XVII e XVIII secolo, e la perlustrazione sistematica delle testimonianze progettuali superstiti, conservate nei diversi archivi, collezioni proivate ed enti pubblici. La mostra di Caltanissetta ha infatti raccolto…
Old World Megadroughts and Pluvials During the Common Era
2015
An atlas of megadroughts in Europe and in the Mediterranean Basin during the Common Era provides insights into climate variability.
Bryophytes as ecological indicators in the beech woods of sicily
2019
Beech woods, which have in Sicily one of the southernmost places of their distribution area, are localized in the mountain belt of North and North-Eastern Sicily, at an altitude of 1300-1900 m, reaching 900 m on the Peloritani. They are referred to the priority habitat 9210*, according to the Natura 2000 network of the European Union. Beech woods settle on different soils, such as incoherent sandy volcanic (Etna), calcareous or silico-arenaceous (Madonie) and clayey-schistose soils (Nebrodi and Peloritani). Bryophytes are considered important components of forestry ecosystems. Many of these organisms are specific to particular types of microhabitats and sensitive to changes such that specie…