120,258 research outputs found
The fractional variation and the precise representative of functions
No full textWe continue the study of the fractional variation following the distributional approach developed in the previous works Brue et al. (2021), Comi and Stefani (2019), Comi and Stefani (2019). We provide a general analysis of the distributional space BV alpha,p(R-n) of L-p functions, with p is an element of [1, +infinity], possessing finite fractional variation of order alpha is an element of (0, 1). Our two main results deal with the absolute continuity property of the fractional variation with respect to the Hausdorff measure and the existence of the precise representative of a BV alpha,p function
L'armonia come cronotopo d'indeterminazione aurorale: esercizio di comprensione del simbolismo del fiore nella poesia di G. Comi
No full textNel presente contributo si cerca di comprendere il poetato espressivo e semantico del simbolismo del fiore, e dell’azione del verbo fiorire, nella poesia di Girolamo Comi. Si mette in rilievo la logica poetante originale e densa del Poeta, a carattere sineddochico per l’inerenza includente del particolare nell’architettura o trama cosmica del Tutto, in cui è connotata l’immagine dell’armonia floreale del Creato. Che è poeticamente ‘celebrata’ come incontro inconsueto di fragilità prorompente verso l’emissione di ritorno nel tempo eterno, in cui la contraddizione viene assorbita nell’essenza d’origine. La condizione del tempo d’origine, più che del tempo del principio, è configurata dalla lingua di Comi con l’‘è’ metaforico della retorica poetica, in cui è implicito pure il ‘non è’, come intima evocazione dell’unitarietà del ‘nondove’ nell’’ognidove’ partecipati, e ‘precipitati’, entrambi nell’indeterminazione compiuta dell’Essere
Evaluation of different methods to prevent Penicillium nordicum growth and Ochratoxin A (OTA) presence on country-style sausages.
No full textPenicillium nordicum is the main ochratoxin A (OTA)-producing fungal species isolated from artisanal sausages of different areas of Italy and other European countries. P. nordicum grows on and produces OTA in the sausage casing, thereby posing a health risk to Italian consumers, who commonly eat both the meat and casing of artisanal sausages. Different methods have been proposed to eliminate OTA and P. nordicum on the casings, including brushing, brushing and washing, the use of fungal starter cultures (Penicillium nalgiovense) and gaseous ozone. The aim of this study was to compare these methods with regard to eliminating the risk of OTA contamination in sausages. Three concentrations of gaseous ozone were assessed, i.e. 0.5, 1.0 and 1.5 mg/l. Only 1.5 mg/l prevented P. nordicum growth and production of OTA in sausages without influencing the physicochemical parameters and the sensory characteristic of the products. Application of this gaseous ozone concentration was then compared to the other methods, i.e. brushing, brushing and washing, a one-step starter culture of P. nalgiovense (inoculation after casing) and a two-step starter culture (inoculation after both casing and drying). The results obtained showed that only the use of gaseous ozone and a two-step starter culture of P. nalgiovense achieved complete inhibition of P. nordicum growth and OTA production. However, sensory analysis of the treated sausages showed that the use of starter cultures was the best method
Girolamo Comi, Poesie
No full textGirolamo Comi (1890-1968) occupe une place à part dans le panorama de la poésie italienne du XXe siècle. Né dans une famille noble des Pouilles, dans la province de Lecce, il suivit des études en Suisse de 1908 à 1912, où il s’intéressa aux théories anthroposophiques de Rudolf Steiner. Il fit ses débuts à Lausanne avec le recueil de poèmes Il Lampadario (1912) et s’installa ensuite à Paris, où il entra en contact avec les principaux représentants de l..
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