Search results for "pictor"

Extraterrestrial Mössbauer Spectroscopy

2011

To understand the origin of the Solar system and the origin of Life itself is one of the longest standing goals of human thought. Our Sun and its planets have formed out of an interstellar cloud which collapsed due to gravitational forces, forming a disk shaped so-called protosolar nebula, with the young star in the centre. Such disk shaped and dust grain containing protosolar nebulae have been observed. One of them is surrounding the young star Beta pictoris [1, 2]. Silicates, carbon and metal grains, oxides and sulfides should have been present. One of the important elements with relatively high abundance is iron. It is believed that simple molecules, such as water (H2O), carbon monoxide …

Maps in picturebooks: cognitive status and narrative functions

2015

This article focuses on the relation between maps, mental representations, description, and narration in picturebooks. It is shown that maps are cognitively demanding, since they presuppose the development of cognitive abilities and the comprehension of complex visual codes, including recognition of the specific combination of signs and names representing land- and cityscapes, geographical abstraction as well as the symbolization, highlighting, and suppression of information. After a survey of findings from cognitive psychology and geography literacy about children’s map acquisition, the article gives an overview on some types of maps in picturebooks that are interesting from a narrative po…

Nacre calcification in the freshwater mussel Unio pictorum: carbonic anhydrase activity and purification of a 95 kDa calcium-binding glycoprotein.

2008

9 pages; International audience; The formation of the molluscan shell is finely tuned by macromolecules of the shell organic matrix. Previous results have shown that the acid-soluble fraction of the nacre matrix of the freshwater paleoheterodont bivalve Unio pictorum shell displays a number of remarkable properties, such as calcium-binding activity, the presence of extensive glycosylations and the capacity to interfere at low concentration with in vitro calcium carbonate precipitation. Here we have found that the nacre-soluble matrix exhibits a carbonic anhydrase activity, an important function in calcification processes. This matrix is composed of three main proteinaceous discrete fraction…

Pictorial information retrieval with uncertain knowledge

1990

In the paper an integrated pictorial database is described. The design of the data management requires many efforts to preserve consistency and integrity. The retrieval operations are designed to support a uniform view of heterogeneous information including uncertain ones; in this last case, non-standard techniques have to be developed. Applications to astronomical images and an outline of the implementation status are given.

Postfazione

2009

Pictorial Turn. Saggi di cultura visuale

2009

Visioni. Il pictorial turn dell'ékphrasis

2014

Review of Daniela Wagner, Die Fünfzehn Zeichen vor dem Jüngsten Gericht: Spätmittelalterliche Bildkonzepte für das Seelenheil, Berlin: Reimer, 2016. …

2019

Proteomic analysis of the acid-soluble nacre matrix of the bivalve Unio pictorum: detection of novel carbonic anhydrase and putative protease inhibit…

2010

10 pages; International audience; The matrix extracted from mollusc shell nacre is a mixture of proteins and glycoproteins that is thought to play a major role in controlling biomineral synthesis and in increasing its mechanical properties. We investigated the nacreous shell of the freshwater mussel Unio pictorum, to which we applied a proteomics approach adapted to mollusc shell proteins. On one hand, the acid-soluble nacre matrix was fractionated by SDS-PAGE and the five main protein bands (P95, P50, P29, P16, and P12) were digested with trypsin and analyzed by nanoLC-MS/MS followed by de novo sequencing. On the other hand, the acid-soluble nacre matrix was analyzed in a similar manner, w…

Una nuova acquisizione iconografica per la ricostruzione della tribuna di Antonello Gagini nella Cattedrale di Palermo

2022

La recente digitalizzazione di un dipinto di anonimo siciliano nelle collezioni del Museo de Historia di Madrid e il suo inserimento nei database del patrimonio culturale spagnolo ed europeo ha consentito di riportare all’attenzione della comunità scientifica un’importante raffigurazione pittorica della tribuna di Antonello Gagini nella Cattedrale di Palermo. Dopo avere ripercorso le principali fonti documentarie ed iconografiche relative alla tribuna, viene qui presentata l’opera oggi a Madrid, che fornisce un prezioso riscontro alle fonti fin qui note.