87,978 research outputs found
The Italian Stabilization of 1947: Domestic and International Factors
No full textThe paper examines the 1947 monetary stabilization in Italy, tracing the domestic and international political dynamics that allowed ideas and theoretical concepts developed within the Bank of Italy to be applied in a successful action to subdue spiraling inflation. The combination of events and circumstances necessary for the good outcome in a critical juncture of Italian economic history was the fruit of the efforts made by Prime Minister Alcide De Gasperi in both the domestic and international political arenas and of the collaboration he received from Luigi Einaudi and Donato Menichella. The Government’s economic action in this crucial episode constitutes perhaps the first outstanding example of cooperation between politicians and experts in the annals of the Italian Republic.Economic history; Stabilization; Italy; United States; De Gasperi; Menichella; 1947
Handling individual differences in preference mapping models
No full textIn this work we discuss an extension in preference mapping of the method proposed in Endrizzi et al. (2011) for accommodating both population averages and individual differences in the same model. The method, based on average estimates and residuals, is a combination of ANOVA, PCA and PLS-DA, which are well-known techniques that can be run in almost all statistical software packages. Main attention will be given to the relation between the double centered residual matrix which highlights differences between consumers in their relative position as compared to the average consumer values and the standard centering in preference mapping. This approach has been found particularly useful for highlighting differences in preference pattern among the consumers. Furthermore, the interpretation and the segmentation, that is here taking place based on differences in acceptance pattern, are graphically oriented. In addition, some possible alternatives to the generally used validation method in PCA are suggested. The approach is then illustrated using the data-set from a consumer study of berry fruit juices (Endrizzi et al.,2009), showing that when individual differences are analysed by the present method, interesting results regarding individual differences in response pattern were detected.
Endrizzi, I., Menichelli, E., Johansen, S. B., Olsen, N. V., & Næs, T. (2011). Handling of individual differences in rating-based conjoint analysis. Food Quality and Preference, 22, 241-254.
Endrizzi I., Pirretti G., Caló D.G., Gasperi F. (2009). A consumer study of fresh juices containing berry fruits. Journal of the Science of Food and Agriculture, 89, 1227-1235
L'Italia e il problema sudtirolese da De Gasperi a Moro
No full textIl problema sudtirolese nei suoi molteplici aspetti politici e diplomatici dal 1946 al 1969. Dal tentativo dei sudtirolesi di ottenere l’autodeterminazione nel 1945, agli accordi De Gasperi-Gruber, fino alla soluzione della questione nel 1969 grazie alla politica di Aldo Moro. Viene affrontato anche il drammatico periodo del terrorismo sudtirolese, l’azione del governo italiano per contrastarlo, le difficili trattative con l’Austria e il ruolo di altri importanti attori italiani, austrici e sudtirolesi come Antonio Segni, Amintore Fanfani, Mario Scelba, Bruno Kreisky, Silvius Magnag
Il laboratorio sensoriale della Fondazione Mach. Studi sulla qualità dei prodotti e sulle risposte dei consumatori
No full textApplication of a new sensory-instrumental tool for the evaluation of promising apple genotypes
No full textMost frequently, breeding programs adopt instrumental evaluation methods to assess the quality of the selections of interest. Sensory methods, when applied, are employed only at a later stage on fruit of selection chosen on the basis of previous instrumental screenings. Instrumental measurements, however, cannot replace sensory evaluation when a description of perceivable quality is needed. In this work, a detailed protocol, combining sensory and instrumental methods, is applied to define the sensory properties of 11 new apple breeding selections (Malus × domestica Borkh.) and to characterise them from their original parental genotypes. The final aim is to provide to breeders a reliable sensory profile of new selections, and a useful tool to predict sensory properties by instrumental characterisation. Descriptive sensory analysis was performed by a trained sensory panel of 14 judges through a sensory vocabulary composed of 11 attributes related to texture, taste and overall odour and flavour [1]. Simultaneously on the same samples the basic chemical composition and texture properties were assessed by a set of standard and innovative instrumental measurements [2], to allow the interpretation of the sensory description in terms of fruit chemical and physical properties. The collected data permitted to study affinities and specificities of the new selections in comparison to their parental genotypes. Instrumental measurements confirmed the existence of differences between the samples and reflected their sensory description, helping to interpret the perceivable quality in terms of chemical and physical properties. Moreover, the combined analyses allowed the development of effective prediction models, with very good results especially for the texture attributes. This is an important first step in the achievement of a reliable complete sensotyping of apples by rapid instrumental characterisation that can be applied on the large data sets usually needed in the initial phase of breeding programs.
References
[1] Corollaro ML, Endrizzi I, Bertolini A, Aprea E, Demattè ML, Costa F, Biasioli F, Gasperi F. Sensory profiling of apple: Methodological aspects, cultivar characterisation and postharvest changes. Postharvest Biol Technol. 2013;77:111-120.
[2] Costa F, Cappellin L, Longhi S, Guerra W, Magnago P, Porro D, Soukoulis C, Salvi S, Velasco R, Biasioli F, Gasperi F. Assessment of apple (Malus × domestica Borkh.) fruit texture by a combined acoustic–mechanical profiling strategy. Postharvest Biol Technol. 2011;61:21-28
Nuovi spunti dalla ricerca da S. Michele all'Adige: il laboratorio sensoriale della FEM studia la qualità dei formaggi
No full textIl gruppo Qualità Sensoriale del Centro Ricerche e Innovazione della Fondazione Mach di San Michele all'Adige (TN) sviluppa tecniche innovative e multidisciplinari per definire in modo obiettivo la qualità percepita degli alimenti. Sono qui presentati alcune esempi della ricerca condotta sui prodotti lattiero casear
Problematiche e prospettive nello studio delle relazioni tra profili sensoriali e strumentali
No full textRecensione a: M. Callari Galli, F. Frabboni, Insegnare all'università, Milano, FrancoAngeli, 1999, 217
No full textAdvances in analysis of instrumental food quality data
No full textThis chapter presents an overview of the main multivariate data analytical tools to deal with problems normally encountered in the instrumental evaluation of food quality (exploratory analysis, calibration and classification). Particular attention is given to the family of methods based on projection on a low-dimensional subspace of latent variables, as they have the advantages of allowing the analysis of data where many correlated variables are measured on a limited number of samples (which is often the case in instrumental assessment of food quality) and an easy and straightforward visualisation of the results
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