117,768 research outputs found
Procedimenti prospettici cinquecenteschi
No full textSeminario su “Prospettive” organizzato dal Prof. Maurizio Unali dell’Università degli Studi “G. D’Annunzio”, Facoltà di Architettura di Pescara.
Pescara, 7 novembre 2000.
L’intervento di Marco Fasolo dal titolo: “Procedimenti prospettici cinquecenteschi” ha inteso mettere a confronto le costruzioni prospettiche dei Maestri del Cinquecento, F. Brunelleschi, L. B. Alberti e Piero della Francesca. Da quest’ analisi è scaturita l’osservazione che alla base dei procedimenti costruttivi c’è sempre l’idea di usare rette a 45° col quadro per mettere in prospettiva un punto di una perpendicolare al quadro, cioè per misurarla. Pertanto, anche in questo momento storico, fondamentale per lo sviluppo della teoria prospettica, lo spunto iniziale d’origine è sempre spaziale, geometrico e non teorico
Babbling and first words in children with slow expressive development
No full textThis study examined early vocal production to assess whether it is possible to identify predictors of vocabulary development prior to the age point at which lexical delay is usually identified. Characteristics of babbling and first words in 12 Italian children with slow expressive development (late talkers; LT) were compared with those of 12 typically developing (TD) peers. Syllable structure and phonetic characteristics of babbling and first words produced by both groups of children at 20 months were analysed during mother-child play sessions. Results indicated that phonetic complexity and number of consonantal types were lower in the LT group. The two groups also differed in their use of sound classes and their syllable structure. Overall, it can be said that LTs development is similar to (but slower than) TDs, as opposed to having an atypical pattern of phonological development
Esperienze prospettiche a Cantalupo
No full textL’articolo presenta le attività svolte nell'ambito del workshop dal carattere divulgativo/operativo “Comunicazione visiva e valorizzazione culturale” in riferimento alla componente formativa relativa alla Geometria descrittiva. in particolare, è stato condotto il rilievo di alcuni episodi di prospettiva parietale e, più in generale di affreschi su superfici piane e curve, contestualmente al rilievo della struttura architettonica che i accoglie. Il lavoro condotto mirava a proporre un'esperienza completa – dalla documentazione all'analisi prospettica – in relazione alla pittura parietale e, in particolare, allo sfondato illusorio realizzato con gli strumenti della prospettiva.
Il workshop si è svolto a Cantalupo in Sabina nel giugno 2022 nel quadro delle attività di terza missione e in attuazione dell’accordo di collaborazione scientifica tra il dottorato in Storia, Disegno e Restauro dell’architettura – curriculum di Disegno e il comune di Cantalupo in Sabina
The influence of biological, social and developmental factors on language acquisition in pre-term born children
No full textThe objective of this study is to evaluate language outcome in pre-term children, considering multiple factors. The hypothesis is that early communicative capacity (pre-verbal communicative utterances) is affected mainly by biological (prematurity, birth weight, and gender) and social factors (maternal education), while more advanced linguistic abilities (i.e., combinatorial and syntactic abilities) are mostly influenced by previously acquired communicative abilities. Eighteen monolingual Italian pre-term children (birth weight between 750 and 1600 grams, gestational age<37 weeks; 13 males and five females) were compared with a control group of 18 age-matched full-term children (8 males, 10 females). The longitudinal design comprised motor and cognitive assessment at 14 and 36 months, and communicative evaluation by direct observation at 14, 24, 30, and 36 months, and by indirect observation at 24 and 30 months. The main results evidenced were delayed development in pre-term compared to full-term children, particularly after 24 months of age; intra-individual differences in the pre-term group; and a strong effect of prematurity on communicative ability at 14 and 24 months; however, more advanced communicative developmental stages were influenced both by prematurity and by previously acquired linguistic skills
Internal reflections and nonlinear effects interplay in non-ideal Josephson Travelling Wave Parametric Amplifiers
No full textThe paper investigates the interplay of nonlinear effects with the non-ideal transmission properties of a Josephson Travelling Wave Parametric Amplifier (JTWPA). Experimental characterization using a microwave and DC cryogenic setup
reveals periodic transmission modulation linked to the tuning of
the Josephson inductances embedded in the line. The effects of
impedance matching and resonant parametric down-conversion
(PDC) are observed on a broadband scale, and the impact of de sign parameters and fabrication issues on device performance is analyzed. These findings contribute to the optimizing techniques for JTWPA devices, advancing quantum-limited amplifiers
Tyrosine hydroxylase immunohistochemistry in the normal and 1-methyl-4-phenyl-tetrahydropyridine (MPP+)-treated retina of goldfish
No full textDopaminergic interplexiform neurons have been identified in the inner nuclear layer of goldfish retina, with tyrosine hydroxylase (TH) immunocytochemistry in whole-mounted retinae and in cryosections. The neurotoxin 1-methyl-4-phenylpyridinium ion (MPP+), which selectively damages dopaminergic neurons in mammals, caused a marked depletion of TH immunoreactivity in goldfish retina. Three days after intravitreal injection, retinae showed no significant decrease in the number of TH-positive neurons. However most of the TH-immunoreactive cell bodies showed an evident depletion of TH immunoreactivity and their processes, ramified in the inner and outer plexiform layers, disappeared almost completely. © 1989
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