1,750 research outputs found
Argenti di Sardegna. La produzione di argenti lavorati in Sardegna dal Medioevo al primo Ottocento
No full textIl volume, frutto della collaborazione di due storiche dell’arte studiose della materia, si configura come una sintesi storico-artistica ad ampio respiro delle vicende relative alla produzione argentaria sarda, dal Medioevo al primo Ottocento, che non trascura l’influsso esercitato dai modelli di importazione e si sostanzia di un’ampia indagine negli archivi isolani. Emerge dai documenti l’estesa diffusione dei manufatti d’argento ed il loro uso nelle varie classi sociali, oltre che nell’ambito ecclesiastico. Risalta inoltre il ruolo svolto dalla committenza nella realizzazione delle opere di maggiore importanza. Come per le altre manifestazioni dell’arte in Sardegna, anche la produzione argentaria va inserita nell’ambito vasto della circolazione mediterranea ed europea degli influssi culturali e degli scambi commerciali. Dall’analisi della vasta produzione residua, infatti, emergono influssi stilistici provenienti dall’area iberica, dalla Provenza, dal nord Europa e da varie regioni italiane: Piemonte, Liguria, Toscana, Lazio, Campania e Sicilia. Questa pluralità di linguaggi artistici è conseguenza sia dei rapporti politici ed economici che dell’importazione di manufatti da queste aree ma anche della attiva e stimolante presenza all’interno delle maestranze locali di artefici forestieri che da tali regioni provenivano. Col suo ampio apparato iconografico, il volume si propone di colmare una lacuna storiografica e di offrire a studiosi, collezionisti, antiquari ed appassionati una chiara e accessibile classificazione dei manufatti argentei prodotti in Sardegna distinti per epoche, autori, stili e tipologie.This book is the result of the joint work of two art historians. It is an artistic–historical, wide ranging synthesis of the Sardinian artistic silver works, from the Middle Ages to the first years of the XIX century. It also examines the influence by importation models and it is the result of a wide research in Sardinian archives.
The study of papers shows an extensive diffusion of silver manufactures and of their use in ecclesiastical environment and in various social classes. Moreover it is evident the role of clients in the making of the most important works.
Sardinian productions of silver works of art is part of a wide scope of cultural influence and trade in the Mediterranean area and in Europe. From an analysis of a large remaining production it is possible to notice stylistic influences from the Iberian area, Provence, Northern Europe and from several Italian regions, such as: Piedmont, Tuscany, Latium, Campania and Sicily.
Such variety of artistic expressions is due to political and economic relations, import and to an active and stimulating work of foreign craftsmen, from the above-named areas, working in Sardinia.
With his broad range of iconographic topics, this book intends to fill a historiographic gap and to present a clear and accessible classification of silver products made in Sardinia, classified into periods, authors, styles and typologies. This volume addresses to scholars, collectors, antique dealers and lovers of art
How hormonal contraceptives shape brain and behavior: A review of preclinical studies
No full textSteroid hormones influence different aspects of brain function, including development, neurogenesis, neuronal excitability, and plasticity, thus affecting emotional states, cognition, sociality, and reward. In women, their levels fluctuate across the lifespan and through the reproductive stages but are also altered by exogenous administration of hormonal contraceptives (HC). HC are widely used by women throughout their fertile life both for contraceptive and therapeutic benefits. However, awareness of their effects on brain function and behavior is still poorly appreciated, despite the emerging evidence of their action at the level of the central nervous system. Here, we summarize results obtained in preclinical studies, mostly conducted in intact female rodents, aimed at investigating the neurobiological effects of HC. HC can alter neuroactive hormones, neurotransmitters, neuro-peptides, as well as emotional states, cognition, social and sexual behaviors. Animal studies provide insights into the neurobiological effects of HC with the aim to improve women's health and well-being
Edilizia e clima: alcune proposte di integrazione alla normativa urbanistica
No full textIl saggio esamina alcune norme urbanistiche in riferimento al Climate Change e al contenimento dei consumi energeticiThe article reviews some experiences of urban regulations regarding energy consumption and Climate Chang
Effects of Various Stripping Techniques on Surface Enamel
No full textA great deal of clinical evidence and reported data suggest that the burs used to reduce interproximal enamel create furrows and scratches that can lead to carious lesions, periodontal disease, and oversensitivity to extreme temperatures. 1 Studies conducted on fragments of intraoral enamel have shown that the size and particularly the depth of these furrows can have a significant effect on remineralization and thus on the formation of demineralizing lesions.2 The more numerous and deep the lesions, the higher the risk that they will be carious. The present study was intended to assess surface changes in enamel caused by treatment with various stripping and finishing technique
Effects of Various Stripping Techniques on Surface Enamel
No full textAgreat deal of clinical evidence and reporteddata suggest that the burs used to reduceinterproximal enamel create furrows and scratchesthat can lead to carious lesions, periodontaldisease, and oversensitivity to extreme temperatures. 1Studies conducted on fragments of intraoralenamel have shown that the size and particularlythe depth of these furrows can have a significanteffect on remineralization and thus onthe formation of demineralizing lesions. 2Themore numerous and deep the lesions, the higherthe risk that they will be carious.The present study was intended to assesssurface changes in enamel caused by treatmentwith various stripping and finishing techniques
Performance and Characteristics of Aerobic Granular Sludge Degrading 2,4,6-Trichlorophenol at Different Volumetric Organic Loading Rates
No full textAerobic granular sludge represents a promising option for the treatment of wastewater contaminated by 2,4,6-trichlorophenol (2,4,6-TCP). Nevertheless, the need for high volumetric organic loading rates (vOLR) still constitutes a practical drawback, since the supply of an external carbon source for the treatment of low-strength industrial wastewater would imply significant costs at full-scale. This study investigates the possibility to sustain 2,4,6-TCP degrading aerobic granules with low vOLR, preserving long-term process performance. Sodium acetate was used as external carbon source for aerobic granules degrading 2,4,6-TCP (20 mg/L), and its concentration in the influent was progressively reduced from 1000 to 420 mg/L. The effects on process performance, granule properties and microbial population dynamics were investigated: complete 2,4,6-TCP removal was maintained, specific removal rates increased from 2.2 ± 0.5 to 4.3 ± 0.4 mg 2,4,6-TCP/g VSS per hour (mg2,4,6-TCP/gVSS· h) and a shift of granule diameter toward smallest size fractions occurred. Moreover, the qualitative evaluation of polyhydroxyalkanoates (PHA) inclusions in microbial cells suggested their active role in 2,4,6-TCP degradation. The results showed that for low-strength wastewater containing toxic substances like 2,4,6-TCP, high concentrations of the external carbon source are required during the process start-up, but not in the long-term operation, thus reducing the operating costs significantly without compromising process performance: this represents an important step toward process scale-up
Un grande libro di 1000 pagine: rappresentazioni sociali della Costituzione negli studenti di una scuola secondaria
No full textIl contributo illustra una ricerca sulle Rappresentazioni sociali della Costituzione italiana in studenti adolescenti
I giovani e la Costituzione, alcuni appunti inediti di Barbara Pojaghi
No full textIl contributo organizza appunti inediti della prof.ssa barbara Pojaghi relativi a una sua ricerca sulle rappresentazioni sociali dei giovani della Costituzione italian
Lettera di Alessandra
No full textUn ritratto critico dell'opera di Alessandra Carnaroli, autrice fra le più apprezzate delle ultime generazioni della poesia di ricerca. La sezione a lei dedicata, nel numero della rivista, contiene inoltre saggi di Cecilia Bello Minciacchi, Andrea Cortellessa, e Ivan Schiavone; e vari inediti dell'autrice. Il saggio è pubblicato con lo pseudonimo di Tommaso Ottonieri.A critical portrait of the work of Alessandra Carnaroli, author of the most appreciated in the latest generations of italian research poetry. Published under the pseudonym Tommaso Ottonieri
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