3 resultados para Vigna-angularis

em AMS Tesi di Dottorato - Alm@DL - Università di Bologna


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Crop elicitation: innovative approach for the valorization of grain legume functional properties. In Italy grain legume cultivation has encountered a drastic decrease due to several causes (productive, economic, social). In this regard, studies aimed at the setting up of agronomic techniques able to guarantee high and constant in planta yields of health-promoting compounds may concur at re-launching legume production. In this context, 22 accessions of grain legumes (17 Phaseolus vulgaris, 3 Phaseolus coccineus, 1 Vigna unguiculata and 1 Glycine max genotypes) were screened with the aim of identifying genotypes rich in health beneficial phytochemicals (α-amylase inhibitors, α -glucosidase inhibitors, polyphenols) and with low anti-nutritional compounds (lectins). A wide variability was observed among investigated accessions. Four genotypes (Verdone, Kidney Cina, Roviotto and DG) showed a α -amylase inhibitory activity significantly higher (approximately 30% more) than all other tested accessions. The α -amylase inhibitory activity was not correlated neither with the protein nor with the polyphenol contents. Conversely, the α -glucosidase inhibitory activity was positively correlated with grain color and polyphenol content: dark-colored seeds had a mean inhibitory activity of 83.64 ± 22.07%, whereas light-colored seeds had mean values of 21.11 ± 9.36%. As regards the anti-nutritional compounds, out of all common bean accessions, only DG showed no erythro-agglutination activity (lectins). Preliminary experiments, performed in controlled environment, permitted to highlight that different germination conditions markedly affect the synthesis and accumulation of functional compounds in legume seedlings. Those findings were confirmed with field trials performed in two different locations (Bologna and Pisa), on two bean genotypes (Verdone and Zolfino), during the 2004-2005 cropping season. Results showed that the application of abiotic stresses (no fertilization and /or no irrigation) lead to a significant increase of flavonoids in grains, but a decrease (up to 50%) in legume yields was also observed. Crop elicitation, even if valuable for boosting health-promoting compound synthesis in crops, must necessary cope with economically acceptable crop yields.

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La ricerca è stata incentrata su di una fonte di grande importanza per una più puntuale comprensione della vita del regno di Federico II: il Quaternus excadenciarum Capitinate. Essa ha tenuto presenti le altre fonti coeve: Liber Augustalis, Registro della Cancelleria di Federico II degli anni 1239-1240, fonti cronachistiche. Il Quaternus è un inventario di talune particolari categorie di beni demaniali, le excadencie, la cui concessione è scaduta e pertanto ritornano al fisco. Tali beni sono situati in 33 località del Giustizierato di Capitanata. Senza data, è stato redatto tra il 1249 e il 1250 (risultano inseriti i beni confiscati a Pier della Vigna, bollato di tradimento nel febbraio 1249). Obiettivo della ricerca è stato duplice: 1) analizzare e approfondire le questioni di natura giuridico-istituzionale ed economica implicate nel documento e tentare di ricostruire uno spaccato della Capitanata del XIII sec.; 2) offrire una nuova e più corretta edizione del testo. La prima parte dello studio ha inteso inquadrare il documento nel contesto delle esigenze proprie delle monarchie del tempo di tenere sotto controllo i beni immobili di ciascun regno ed analizzare la politica economica fridericiana (capp. I, II). La seconda parte è stata dedicata agli approfondimenti innanzi ricordati. Essa è struttura in sette capitoli (I. Il Quaternus excadenciarum Capitinate; II. Beni e diritti costituenti le excadencie Capitinate; III. Il Quaternus come specchio di una politica dispotica; IV. La gestione delle excadencie; V. Pesi e misure; VI. Monete e valori; VII. Il Quaternus come documento sullo stato della Capitanata nel XIII secolo). In appendice: tabelle che offrono per ciascuna delle 33 località considerate, puntuali indicazioni dei beni e diritti censiti, dei nomi dei titolari delle concessioni (spesso personaggi di rango) e delle relative rendite.

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Big data and AI are paving the way to promising scenarios in clinical practice and research. However, the use of such technologies might clash with GDPR requirements. Today, two forces are driving the EU policies in this domain. The first is the necessity to protect individuals’ safety and fundamental rights. The second is to incentivize the deployment of innovative technologies. The first objective is pursued by legislative acts such as the GDPR or the AIA, the second is supported by the new data strategy recently launched by the European Commission. Against this background, the thesis analyses the issue of GDPR compliance when big data and AI systems are implemented in the health domain. The thesis focuses on the use of co-regulatory tools for compliance with the GDPR. This work argues that there are two level of co-regulation in the EU legal system. The first, more general, is the approach pursued by the EU legislator when shaping legislative measures that deal with fast-evolving technologies. The GDPR can be deemed a co-regulatory solution since it mainly introduces general requirements, which implementation shall then be interpretated by the addressee of the law following a risk-based approach. This approach, although useful is costly and sometimes burdensome for organisations. The second co-regulatory level is represented by specific co-regulatory tools, such as code of conduct and certification mechanisms. These tools are meant to guide and support the interpretation effort of the addressee of the law. The thesis argues that the lack of co-regulatory tools which are supposed to implement data protection law in specific situations could be an obstacle to the deployment of innovative solutions in complex scenario such as the health ecosystem. The thesis advances hypothesis on theoretical level about the reasons of such a lack of co-regulatory solutions.