266 research outputs found

    Riflessi di concezioni totemiche in alcuni nomi dialettali del ghiaccio

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    In the framework of previous research on totemic names related to the perception of landscape, the author points out the presence of a few dialectal names referred to ‘ice’ which can be inter-preted in their continuity with a prehistoric system of beliefs

    La "Terra dei Morti" di Thomas Kinsella come spazio primordiale di un nuovo immaginario

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    Tra le numerose opere poetiche di Thomas Kinsella, "Notes from the Land of the Dead", del 1973, appare quella più legata agli elementi del paesaggio fisico. In questo saggio si provano a percorrere alcune strategie cognitive e percettive che consentono al poeta irlandese di farsi interprete, attraverso di esso, di un immaginario per la rifondazione poetica del mondo, all’interno di quella che ho recentemente definito come "world poetry"

    Technical note: Rapid mineral determination in forages by X-ray fluorescence

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    A large portion of the cow's ration is composed of forages that can vary greatly in mineral concentrations, which may affect animal performance and health. Current methods for mineral analysis require sample destruction either through wet or dry ashing and complex analytical techniques for individual minerals. Energy dispersive X-ray fluorescence (EDXRF) is a nondestructive, multi-mineral, spectroscopy technique, which makes mineral quantification simple, direct, and affordable. The study objective was to evaluate the prediction performance of EDXRF of Na, Mg, P, S, Cl, Ca, K, Mn, Fe, Cu, and Zn concentrations in forages. Twelve certified plant samples with a wide range in mineral concentrations were used to develop calibrations, and 35 forages (18 alfalfa hays, 10 grass hays, 7 corn silages) with measured mineral concentrations, which were collected over several years from 3 proficiency programs, were used as an independent validation set. All the samples were previously dried and finely ground and were prepared by compressing them into a round dense pellet, 40 mm in diameter, using a 40-ton pneumatic laboratory press. Samples were scanned using an EDXRF instrument enhanced for lighter minerals like Na and Mg. Samples were scanned at 20 keV and at 40 KeV associated with an Al filter, for a total analysis time of approximately 6 min. Calibrations were developed with Bruker SpectraEDX (Bruker, Hamburg, Germany) software and optimized to minimize the standard error of calibration. All of the minerals had acceptable calibration performance with coefficient of determination ranging from 0.93 (P) and 0.99 (Cl, Ca, and Mn) and coefficients of variation within 5 to 14%, which are similar to the coefficients of variation of the reference analysis. The coefficients of variation for Na was an exception, with a coefficients of variation of 29%. The validation set obtained similar statistical results as that observed in calibration. The root mean square error of prediction corrected for bias was similar to the standard error of calibration, indicating that it is possible to build a robust calibrations that performed well across different type of forages by using 12 reference samples with a sufficient range in mineral concentrations that were determined accurately. A bias correction was necessary to improve prediction accuracy only for K (−0.23% dry matter) and Ca (−0.16% dry matter). Energy dispersive X-ray fluorescence demonstrated the ability to be an accurate, direct, and simple technique for forage mineral analysis

    AUTHENTICATION OF WILD AND REARED SEA BASS BY INFRARED SPECTROSCOPY NIRs (NEAR INFRARED REFLECTANCE SPECTROSCOPY)

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    The aim of this study was to evaluate NIRs (Near Infrared Reflectance Spectroscopy) performances in the prediction of Farmed vs.Wild production method in European sea bass. Samples collected (n=39) were submitted to analysis in order to assess chemical composition and fatty acids profile of fillets. Aliquots of wet and ground freeze-dried minced samples were scanned in duplicates (1100 to 2498 nm; 2 nm intervals) in reflectance mode using a monochromator NIRsystem 5000. NIRs technique showed a satisfactory accurateness in predicting Protein, Lipids and Fatty acids profile in raw samples. Sample lyophilisation increased some predicting values (r2: coefficient of determination on cross-validation range from 0,671 to 0,992; SECV: standard error of cross-validation range from 0,864 to 2,981). Results showed that NIRs technique was able to discriminate between Wild (94,7% samples recognized) and Farmed (100% samples recognized) using wet muscles, and 100% for both classes on ground freeze-dried fillet

    Working precarious careers trajectories: tracing neoliberal discourses in younger workers’ narratives

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    © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. The aim of this article is to explore how, in the context of the post Global Financial Crisis (GFC), some Italian younger workers in a specific geographical region in Italy recount their work trajectories. Drawing on narrative interviews with ten participants (aged between 24 and 30) as part of a research project carried out in the Autonomous region of Aosta Valley in Italy, the article traces discourses closely associated with neoliberalism–the discourses of the entrepreneurial self, employability and self-responsibilisation–through which subjects’ work experiences take shape. Moreover, the analysis highlights how locality, one’s personal relation with the geographical territory, makes more complex the younger people’s negotiations in crafting themselves vis-à-vis precarious employment opportunities and wider socio-economic dynamics in respect of precarious employment opportunities

    I nomi della fata nei dialetti d\u2019Europa

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    vengono analizzati i nomi della "fata" in diversi dialetti europei, per proporre un'analisi stratigrafica che ne renda plausibile l'origine nelle diverse fasi dell'evoluzione delle credenze ferich

    Liguri, Etruschi e Celti: verso un nuovo orizzonte cronologico

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    Gli enormi passi avanti compiuti negli ultimi trent\u2019anni da discipline quali l\u2019archeologia, l\u2019antropologia culturale e la genetica, e le innovative svolte interpretative che ne sono seguite, hanno solo raramente trovato un riscontro nelle sintesi storiografiche e linguistico-filologiche relative alle nostre civilt\ue0. Questo contributo intende avviare qualche riflessione per indicare in che direzione colmare questa lacuna

    La "Vita Sancti Faronis", le origini delle "chansons de geste" e le ballate delle Isole Faroe

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    Nella Vita Sancti Faronis scritta da Ildegario nel IX secolo, si fa riferimento a canti epici in lingua volgare eseguiti mentre le donne danzavano e battevano le mani. Questa testimonianza, che ha suscitato l\u2019interesse degli studiosi che si sono occupati dell\u2019origine delle chansons de geste, ha un parallelo evidente nella tradizione epica delle ballate-danze delle Isole Faroe, spesso di argomento carolingio. L\u2019articolo vuole indagare questa connessione e le sue possibili implicazioni nel dibattito sull\u2019epica medievale
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