797 research outputs found
Testi dell'espansione digitale del volume "La televisione Italiana" di L. Barra, P. Brembilla e V. Innocenti
No full textApparato digitale ospitato dalla piattaforma MyLab che include espansione testuale, esercizi di autovalutazione, raccolta di risorse audiovisive con relative didascalie e linea del tempo a supporto del volume di Luca Barra, Paola Brembilla e Veronica Innocenti, "La televisione italiana. Storie, generi e linguaggi", Milano, Pearson, 2024
La scena trasformata. Adattamenti neoclassici di Shakespeare
No full textThe first Italian study thoroughly analyzing the phenomenon of transforming Shakespeare’s plays, which took place from the Restoration to the end of the eighteenth century. The aim of the adaptors was that of making the drama of the past “fit” for a new audience and a new theatre as well as of “amending” what was considered faulty in Shakespeare, according to the neoclassical aesthetics recently imported from France. The book considers both the different kinds of transformation the texts underwent, and the reasons for the revival of the original plays on the eighteenth-century English stage; a revival which was linked to the growing consecration of their author as the national poet
Phenolic composition of Nebbiolo grapes: impact of solar radiation
No full textGrapes (Vitis vinifera L.) are fruits rich in polyphenols; the phenolic composition of grape is very complex, including monomeric and/or polymeric molecules as anthocyanins, flavan-3-ols, flavonols, dihydroflavonols, various phenolic acids and hydroxystilbenes. Phenolic composition of grapes varies depending on several factors such as the effect of vintage, soil, temperature, luminosity, cultural practices and developmental stage (1).
Aim of this work was to characterize the phenolic composition of Nebbiolo grapes from Piedmont, evaluating the influence of solar radiation. The vineyards for the samples collection were selected in four different areas, namely Piobesi d’Alba (CN), Barolo (CN), La Morra (CN) and Ghemme (NO).
First, the amount of incident radiation upon the surface of grapevine rows, taking into account their mutual shading, was calculated. For each vineyard, a radiation map highlighting homogeneous radiation areas was produced; the maps were then employed to carry out the sampling in areas characterized by different class of radiation (in each vineyard 2 or 3 points for both highest and lowest radiation area were selected).
The phenolic fraction of different grape samples (harvested at the physiological ripeness) was characterized for total polyphenols, anthocyanins and tannins, the antioxidant activity (DPPH method) and the chromatic characteristics. Liquid chromatography (RP-HPLC/DAD) has been also applied for the characterization of individual polyphenols.
The composition of grape samples varied depending on the different radiation areas; however, different behaviors were observed also considering samples from different vineyards. In the locality of Ghemme, the highest values for both polyphenols and antioxidant activity were observed in correspondence of the higher radiation area; samples from the Southern Piedmont generally showed an inverse tendency
Giocare a scacchi con la morte. L'Oriente come investigazione impossibile in "René Leys"
No full text"Oriente, storia di una figura nelle arti occidentali" opens the new series "Studi Inter Artes" books of the association Sigismondo Malatesta. The book consists of two volumes; the second volume, prefaced by Loretta Innocenti, focuses on the art and literature between turn-of-the-century exoticism and the present experiences. Zecchi's "Giocare a scacchi con la morte" is a vast analytical study: it shows the set of mirrors and duplications in a great "chinese" novel of Segalen, “René Leys”. The author sees China before the Revolution through the eyes of his young heroes and ironic voice and anonymous first-person narrator
Characterization of Italian rice varieties and their by-products
No full textRice (Oryza sativa L.) is one of the world’s most important cereal crops providing a staple food source for more than 50% of the world’s population. The extent of rice cultivation in Italy is of significant importance: with 1.3 million tons a year of finished product, Italy is not only Europe’s leading producer, but one of the major non-Asian producers, after Brazil and USA (1).
Pigmented rice is widely known as enriched rice for taste and health improvements; primarily produced in Southeastern Asia, recently various pigmented rice cultivar have been developed and cultivated in Italy.
Rice bran, a by-product of the rice milling industry, contributes about 10% to the weight of the grain. Because it contains high amounts of structurally different bioactive compounds, bran from pigmented rice varieties has the potential to serve as a functional food that can promote human health (2).
The main scope of this work was to characterize some both pigmented and white Italian varieties of rice grown in Piedmont (black varieties: Venere, Artemide, Nerone and Otello; red varieties: Ermes, Russ and Rosso Italiano; white varieties: Carnise, Carnise precoce and Selenio (this last one only partially refined)). Different by-products from rice milling were also investigated, husks from shelling process and bran from the pearling (namely “pula” and “farinaccio” from the first and the second part of the process, respectively).
Rice samples were characterized for the proximate composition, the antioxidant activity (DPPH radical scavenging) and the phenolic composition (phenolic acids, flavonoids and anthocyanins).
The higher antioxidant activity and phenolic content were observed for by-products obtained from the pearling process, particularly in the case of pigmented rice (black and red bran), while husks (from white rice) showed the highest fiber content (about 74%). Anthocyanins were determined only in black samples, having evidenced the prevalence of cyanidin-3-glucoside in all the varieties analyzed, while total condensed tannins were prevalent in red bran and Rosso Italiano variety (about 30 and 14 mg/g, respectively)
Cognitive Biases and Gaze Direction: An Experimental Study
No full textThis paper investigates the validity of the model of dual processing by means of eyetracking methods. In this theoretical framework, gaze direction may be a revealing signal of how automatic detection is modified or sustained by controlled search. We performed an experiment by using a stylized decisional framework, i.e. informational cascade, proposed by economists to investigate the rationality of imitative behavior. Our main result is that automatic detection as revealed by gaze direction is driven by mechanisms that are dependent on cognitive biases. In particular, we find significant statistical correlation between subjects’ first fixation and their revealed patterns of choice. Our findings support the hypothesis that the process of automatic detection is not independent on cognitive processes.informational cascades, overconfidence, eye-tracking, information processing, cognitive biases
Voting by Ballots and Feet in the Laboratory
No full textThis paper provides laboratory evidence on the efficiency-enhancing properties of the Tiebout model as a decentralized system of public goods provision. Tiebout (1956) shows that if a sufficient number of local communities exist to accommodate different types of preferences, individuals sort themselves in a way that provides an efficient allocation of public goods and taxes. Our experiment aims to disentangle the effect of voting participation and is composed of two treatments. In the non-participation treatment, local public good provision is chosen by only one subject, while the other members of the community can only stay in or move to another community. In the participation treatment, all the community members have the right to vote as well as to move to another community and collective decisions are taken by majority rule. Our findings show that social welfare is greater in the participation than in the non-participation treatment. We conclude that voting with one’s feet increases efficiency if all the community members vote and that the influence of voting participation on the allocation of local public goods should be taken into account to assess the viability of the Tiebout model.Tiebout model, local public goods, voting participation, federalism, experiment.
Magnetic and ligand field properties of copper at the interfaces of (CaCuO2)(n)/(SrTiO3)(n) superlattices
No full textUsing high-resolution resonant inelastic x-ray scattering (RIXS) excited at the Cu L-3 edge we have investigated the ligand field (dd) and magnetic excitations in (CaCuO2)(n)/(SrTiO3)(n) superlattices (n = 2,3) and compared them to those of a 14-nm-thick CaCuO2 film. The dd excitation spectrum reveals a pyramidal coordination of Cu ions at the CaCuO2/SrTiO3 interfaces. In the three samples, spin excitations are in the form of dispersing magnons, with similar spectral intensity but reduced dynamics in SLs with respect to pure CaCuO2. By fitting the dispersions within linear spin wave theory we have obtained the leading term of the in-plane superexchange parameters: J = 127 meV, 138 meV, and 157 meV for n = 2, 3 SLs, and CaCuO2, respectively. These results demonstrate that the antiferromagnetic order is preserved in these SLs down to very small cuprate layer thickness and despite the chemical and structural alterations at the interface. This finding opens the way to the production of artificial Cu-based high-temperature superconductors where the charge reservoir layer is constituted by the interface itself
Progressive pearling of barley kernel and application to production of functional breads
No full textA strategy to maximise the health benefits of wheat-based products could be to enrich refined flour with fractions of external kernel layers, obtained using grain dry-fraction technologies.
Beside the chemical characterization of different fractions obtained from the pearling of two varieties of barley (cv Mona, naked, two-row; cv Trasimeno, hulled, two-row), the principal aim of this work was i) the identification of the most performing fractions useful as ingredients for bread, following an approach previously applied to wheat bread (Sovrani et al. 2013). Moreover, ii) the final products were characterized in order to study the influence of these barley fractions under both nutritional and technological profile.
Considering the different composition of pearled barley fractions (external fractions are richer in antioxidants and insoluble fibre than internal kernels, which, on the contrary, contain most β-glucans), two different fractions from cv Mona were employed, specifically the most external (corresponding to the 0-5% of kernel weight) and the most internal (residual 75% weight) fractions. About the Trasimeno variety, the sequential pearled fraction corresponding to 15-25% weight of barley kernel was selected.
Three different series of substituted flours were obtained (substitution percentages: 0, 5, 10, 15, 20 and 25%) and used to prepare bread. All the samples were analysed for the chemical composition (moisture, proteins, ashes, fibre, β-glucans and total polyphenols), the antioxidant activity, the rheological properties (Mixolab® parameters) and the physical bread properties (volume, crust colour, instrumental crunchiness and crumb texture profile analysis parameters).
As expected, the use of enriched flours improved the functional properties of the breads, in accord with the original properties of the barley fractions.
Up to 10%-substitution the bread rheological properties were not affected, even if a significant reduction of final volume of bread was observed, when compared with not-enriched bread
Outsourcing and Information Management.
No full textThis paper compares outsourcing processes in France, Italy and Japan in two types of firms, large firms and also small firms. It is shown that outsourcing has increased over the last two decades in both small and large firms in all three countries and that mainly in the last decade the tendency has been to increasingly involve some of the suppliers in product development. We interpret this evidence by means of a cognitive framework related to the activity of information management. Specifically, we show that the more the relationships among suppliers and users are characterised by two-way communication, decentralised information processing, and accordingly balanced contractual power, the more the incentives to create knowledge and to innovate autonomously are guaranteed.Firm size; Information; Network; Outsourcing
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