577 research outputs found
Un progetto formativo condiviso tra istituzioni: il caso della Quadreria Cesarini di Fossombrone (PU)
No full textL’11 luglio scorso presso la Sala della Quadreria Cesarini del Comune di Fossombrone si è svolto un incontro sul tema “La Scuola di Conservazione e Restauro dell’Università di Urbino: restaura Anselmo Bucci” l’iniziativa è stata organizzata dalla Scuola di Conservazione e Restauro dell’Università degli Studi di Urbino Carlo Bo in collaborazione con il Comune di Fossombrone.
L’incontro vuole dare visibilità al progetto sulla Quadreria Cesarini che vedrà nei prossimi anni una proficua collaborazione tra Università e Comune per sviluppare delle attività sulla documentazione digitale e la conservazione preventiva delle opere della collezione.
Dal punto di vista storico artistico la Quadreria Cesarini presenta due condizioni che la rendono una realtà particolare: lo statuto di casa-museo con annessa quadreria, e il fatto di essere stata immaginata come tale dallo stesso proprietario, il notaio Cesarini, quando era ancora in vita. Queste due condizioni fanno della collezione del Notaio un caso studio di particolare interesse per una ricerca centrata sulla conservazione e manutenzione non solo delle opere, peraltro di grande valore, esposte negli ambienti della casa museo e della quadreria, ma anche degli ambienti stessi, memoria storica e documentaria imprescindibile per la comprensione del personaggio Cesarini e delle sue scelte di committente. Dal punto di vista storico-artistico il corpus di opere di tale collezione denota un gusto colto e raffinato del Notaio incentrato sulla scelta di protagonisti di prim’ordine della figuratività italiana tra le due guerre come Carpi, Carena, Funi, Marini, Messina, Morandi, Severini, e racconta dell’amicizia feconda con Anselmo Bucci, originale figura di artista formatosi nella Parigi di inizio secolo e poi a lungo fra i protagonisti dell’arte italiana, di cui è visibile in museo una vastissima selezione delle sue prove più riuscite. Una ricognizione di questo consistente patrimonio, basato sulla preventiva catalogazione dell’intera collezione, è un passaggio fondamentale per la conoscenza che la casa-museo Quadreria Cesarini merita
Relación entre el estado nutricional, composición corporal y características alimentarias en niños, niñas y adolescentes con parálisis cerebral de la ciudad de Córdoba
No full textFil: Comba, Josefina. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: Cesarini, Renata. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: Espada Río, Julieta. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Los niños con parálisis cerebral (PC) presentan diferente composición corporal que quienes tienen típico desarrollo.
Objetivo: Analizar el estado nutricional (EN), su relación con masa magra (MM), masa grasa (MG) y densidad mineral ósea (DMO) y las características alimentarias en niños/as y adolescentes de 2 a 19 años con PC de Córdoba.
Metodología: Estudio observacional, transversal y correlacional. Se realizó encuesta alimentaria, DXA y antropometría, utilizando WHO AnthroPlus para determinar EN. Los datos normales se presentaron con medias y DE, no normales con medianas y rangos. Datos discretos en porcentajes con [IC95%]. Se realizó test de Fisher, test t o Man-Whitney según corresponda, utilizando software Medcalc.
Resultados: De 23 niños, la edad promedio fue 11 años 8 meses ± 3 años 9 meses predominando sexo femenino. 78,3%(n=18) presentó GMFCS severo y 13,6%(n=3) EDACS severo. 65,2%(n=15) presentó desnutrición severa, 69,2%(n=9) MM subóptima, 53,8%(n=7) MG elevada y 66,7%(n=8) DMO patológica. 71,4%(n=15) dependían de cuidadores para comer. Se distribuyeron de igual manera en la duración de la ingesta.
Conclusión: Quienes presentaban desnutrición tenían valores de MM más cercanos a la normalidad junto a MG y DMO más bajos, en comparación con el grupo de EN normal. Quienes necesitaban más tiempo para alimentarse tenían menor MG junto a mayor MM y DMO en comparación con quienes requerían menos tiempo.2027-07-21Fil: Comba, Josefina. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: Cesarini, Renata. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: Espada Río, Julieta. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina
Atomic layer deposition of semiconductor oxides on electric sail tethers
No full text• This study shows that thin coating layers of semiconductor oxides, deposited by atomic layer deposition, can be successfully used to improve the performance of tethers used in space technology. Thin layers of ZnO, TiO2 and Ti-Zn mixed oxide with 25 to 100 nm thickness were considered, and compared with native Al2O3 as reference. For this purpose, morphological, optical and electrochemical characterization was performed. As a result, deposited materials show very good adhesion and conformality. Coatings act as anti-reflective layers, increasing the absorbance of tethers. The presence of TiO2 thin layers and mixed oxide improves the corrosion resistance of tethers both in dark and under UV illumination conditions. Our results show that TiO2 has the best performance for space tether application followed by the mixed oxide
Digestive gland of terrestrial isopods: a morphology study and a model for assessment of contaminants
No full text
NIEMANN PICK B LYMPHOCYTES SHOW AUTOPHAGIC STRESS FEATURES
No full textNiemann-Pick disease (NPD) type A and B are lysosomal storage disorders (LSD) due to the lack of acid sphingomyelinase (ASM) activity (Schuchman et al., 2001). The enzyme defect results in a pathological accumulation of sphingomyelin (SM) within lysosomes. In many LSD, an accumulation of undegraded substrates in lysosomes due to deficiency of specific lysosomal enzymes impairs the autophagic process (Settembre et al., 2008), but an imbalance of the of autophagic process in NPB cells has never been shown. The purpose of this study is to examine the autophagic response in NPB B lymphocytes by means of flow cytometry, confocal microscopy and western blot techniques. EBV-transformed B Lymphocytes from patients with Niemann-Pick type B were treated with nocodazole (NZ) and wortmannin (WM), two autophagy inhibitors, and rapamicyn (RM), an autophagic inductor. Furthermore we starved cells using a serum-free medium to activate the autophagic process. NPD lymphocytes treated by NZ and RM showed an opposite trend than the expected results for normal cells, in Acridine Orange, Lysotracker Green and CD63 staining, clearly suggesting an impairment of this cellular pathway. Instead, starved cells highlighted a normal behaviour for these markers, indicating a residual ability to enter the process. In conclusion such results suggest the involvement of autophagy and the impairment of lysosomal network before and during NPB cells response to the above-mentioned stimuli. These scenario characterize an imbalance between formation and degradation of autophagic vacuoles (autophagic stress)
GraphDBLP: a system for analysing networks of computer scientists through graph databases
No full textThis paper presents GraphDBLP, a system that models the DBLP bibliography as a graph database for performing graph-based queries and social network analyses. GraphDBLP also enriches the DBLP data through semantic keyword similarities computed via word-embedding. In this paper, we discuss how the system was formalized as a multi-graph, and how similarity relations were identified through word2vec. We also provide three meaningful queries for exploring the DBLP community to (i) investigate author profiles by analysing their publication records; (ii) identify the most prolific authors on a given topic, and (iii) perform social network analyses over the whole community. To date, GraphDBLP contains 5+ million nodes and 24+ million relationships, enabling users to explore the DBLP data by referencing more than 3.3 million publications, 1.7 million authors, and more than 5 thousand publication venues. Through the use of word-embedding, more than 7.5 thousand keywords and related similarity values were collected. GraphDBLP was implemented on top of the Neo4j graph database. The whole dataset and the source code are publicly available to foster the improvement of GraphDBLP in the whole computer science community
la rete tessuta dall'arte
No full textNegli ultimi decenni l’Esquilino ha acquisito una nuova centralità nel sistema
dell’arte contemporanea: presenza di gallerie più o meno blasonate, spazi culturali autogestiti,
associazioni che si impegnano nella riqualificazione dell’area e nella valorizzazione
della sua sfaccettata identità, per non parlare degli artisti che vivono in zona o vi hanno
il proprio studio, fra i quali si possono ricordare Andrea Aquilanti, Primarosa Cesarini
Sforza, Bruna Esposito, Giancarla Frare, Elly Nagaoka, Laura Palmieri, Massimo Ruiu,
Ruggero Savinio, per fare solo qualche nome
Teratogenic effects of environmental concentration of plastic particles on freshwater organisms
No full textGiven the widespread presence of plastics, especially in micro- and nanoscale sizes, in freshwater systems, it is crucial to identify a suitable model organism for assessing the potential toxic and teratogenic effects of exposure to plastic particles. Until now, the early life stage of freshwater organisms and the regeneration capacity in relation to plastic particles exposure is a still poorly investigated topic. In this study, we examine the teratogenic effect on diatom Cocconeis placentula and cnidarian Hydra vulgaris under controlled exposure conditions of poly (styrene-co-methyl methacrylate) (P(S-co-MMA)) particles. Significant effects were observed at the lowest concentrations (0.1 & mu;g/L). A significant increase in the teratological frequency in C. placentula and a significant decrease in the regeneration rate in H. vulgaris were found at the lowest concentration. The delay in hydra regeneration impaired the feeding capacity and tentacles reactivity at 96 h of exposure. No effects on diatom growth were observed upon exposure to P(S-co-MMA) particles (0.1, 1, 100, 10,000 & mu;g/L) for 28 days and these findings agree with other studies investigating algal growth. The application of the Teratogenic Risk Index, modified for diatoms, highlighted a moderate risk for the lowest concentration evaluating C. placentula and low risk at the lowest and the highest concentrations considering H. vulgaris. This study suggests the importance of testing organisms belonging to different trophic levels as diverse teratogenic effects can be found and the need to evaluate environmentally relevant concentrations of plastic particles
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