169,750 research outputs found
Un'arte di carattere. Maurizio Osti tra sperimentazione visiva e grafica editoriale
No full textIl testo analizza la produzione grafica di Maurizio Osti e le sue interconnessioni con la sua stessa ricerca artistica in un periodo compreso tra gli anni Settanta e gli anni Novanta
Visioni degli anni Novanta. I casi di 'Prima puntata' e 'Arte video TV'
No full text'Prima Puntata' e 'Arte Video TV' sono i titoli di due significative rassegne video trasmesse a Fuori Orario, su RAI 3, intorno alla metà degli anni Novanta. Alla base di queste due operazioni vi sono l’intenzione di canalizzare i processi dell’arte d’avanguardia in un’esperienza quotidiana e domestica, la volontà di ripensare la separazione tra arte e intrattenimento e l’esigenza di ridurre i confini tra le nicchie creative e la cultura visiva di massa. Tramite la contestualizzazione di queste due imprese nell’ambito del dibattito sul rapporto tra video e televisione e in quello relativo alla situazione artistica del decennio, questo contributo mira a individuare le ripercussioni che esse esercitano sulla percezione del mezzo televisivo, ridefinendo la posizione del telespettatore di fronte alla prospettiva di una fruttuosa osmosi tra arte e cultura massmediale
Pattern
No full textIl contributo mette a fuoco le caratteristiche principali di un pattern decorativo e prende in esame fenomeni artistici del secondo Novecento come la poesia concreta, la pittura sistemica e la computer art che hanno sviluppato le proprietà strutturali del pattern all'interno di più complessi sistemi poietici
Life as Performance. Action and Process in Emilio Prini’s Work
No full textA study on processual and performative attitudes in the work of Emilio Prini between 1967 and 1971
The hydrous component in leucite from Somma-Vesuvius and Roccamonfina volcanoes (sourthern Italy) - a FTIR spectroscopic investigation.
No full text
Sodalite-group minerals from Somma–Vesuvius volcanic complex, Italy: a case study of K-feldspar-rich xenoliths
No full textSodalites and sulfatic sodalites in holocrystalline K-feldspar-rich ejecta from the Somma Vesuvius volcanic complex, Italy, have been characterized by combined chemical, structural and spectroscopic analyses. Sodalite has a relatively homogeneous chemical composition, with the ubiquitous presence of CO 3 2- and H 2O/OH -. The sulfatic sodalites are isomorphous and have cage structures which can contain a wide variety of anions, molecular species and cations. Molecular CO 2 and H 2O/OH - are present in sulfatic sodalites, instead of the CO 3 2- anions that are present in sodalite sensu stricto. The cell dimensions of the all of the studied sodalite samples are very similar, the sulfatic sodalite cell dimensions are more variable. Structure refinement of a distinctly green sample confirms the P43n space group. Metasomatic magma-derived fluids that are rich in H 2O, CO 2, Cl and S are believed to be responsible for the genesis of the relatively late-stage phases which form the ejecta containing the sodalite-group minerals
Functional properties of silicon nanocrystals in oxygen-rich amorphous matrices formed by laser irradiation of substoichiometric silicon oxides
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
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