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Explaining sub-national variations in early-childhood education and care. A fuzzy-set analysis of the Italian case
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Il sistema informativo integrato. Vol I Analisi aziendali di natura economico-finanziaria: il bilancio come strumento di gestione . II EDIZIONE
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Le facezie umanistiche
No full textil saggio ripercorre la multiforme fortuna della facezia in età umanistica
Pronounced northward shift of the westerlies during MIS 17 leading to the strong 100-kyr ice age cycles
No full textThe MIS 17 interglacial, ∼715–675 ka, marks the end of the Mid-Pleistocene Transition as intensified, long and asymmetrical 100-kyr ice age cycles became eminently established. Increasing arrival of moisture to the Northern Hemisphere high latitudes, resulting from the northwestward migration of the Subpolar Front and the intensification of the Norwegian Greenland Seas (NGS) convection, has been put forward to explain the emergence of this quasi-periodic 100-kyr cycle. However, testing this hypothesis is problematic with the available North Atlantic precipitation data. Here we present new pollen-based quantitative seasonal climate reconstructions from the southwestern Iberian margin that track changes in the position and intensity of the westerlies. Our data compared to changes in North Atlantic deep and surface water conditions show that MIS 17 interglacial was marked by three major changes in the direction and strength of the westerlies tightly linked to oceanographic changes. In particular, we report here for the first time a drastic two-steps northward shift of the westerlies centered at ∼693 ka that ended up with the sustained precipitation over southern European. This atmospheric reorganization was associated with northwestward migration of the Subpolar Front, strengthening of the NGS deep water formation and cooling of the western North Atlantic region. This finding points to the substantial arrival of moisture to the Northern Hemisphere high latitudes at the time of the decrease in summer energy and insolation contributing to the establishment of strong 100-kyr cycles
Charles W. Chesnutt. Il Procuste di Baxter e altri racconti
No full textConsiderato il capolavoro della narrativa breve dello scrittore afroamericano Charles W. Chesnutt, il racconto “Il Procuste di Baxter” (1904), tradotto qui per la prima volta in italiano, è una divertente quanto impietosa satira dei club letterari asserviti al mantenimento del privilegio e dello status quo culturale e sociale. Percorso da echi curiosamente melvilliani, il racconto segue la nascita di un “caso letterario” che diventa tale, per paradosso, proprio nel momento in cui ne viene svelata l’inesistenza. Un racconto dove trionfa il magistrale talento ironico di Chesnutt e che si contraddistingue per una spiccata valenza metanarrativa che conduce il lettore a interrogarsi sui rapporti enigmatici tra l’opera e la sua manifestazione materiale—e, non in ultimis, sul valore stesso della letteratura.
“Il Procuste di Baxter” è qui accompagnato da altri quattro racconti—presentati anch’essi nella loro prima traduzione italiana—incentrati sulla cosiddetta “linea del colore”, in cui vengono ritratte le tensioni razziali negli Stati Uniti di fine Ottocento: opere esemplificative del talento poliedrico e della varietà di temi, di registro e di stile che contraddistinsero la fine prosa breve di Chesnutt. Titoli dei racconti originali: "Baxter's Procrustes", "Her Virginia Mammy", "Uncle Wellington's Wives", "The Bouquet", "The Web of Circumstance"
Production Externalities and Investment Caps: a Welfare Analysis under Uncertainty
No full textIn markets where production has adverse externalities, policy makers may wish to increase welfare by imposing a cap on market entries. In this
paper, we examine the implications that the cap has on the firms’ investment equilibrium policy and on social welfare in the presence of
market uncertainty. In contrast with previous literature, we explicitly model the present externality and then let the social planner choose the
cap level maximizing welfare. We find that: i) if the consideration of the option value triggers investment at price above the social marginal cost of
production, then it is optimal to have no cap at all; ii) otherwise, the cap should be set on the current market quantity and a ban on further market
entries should be announced
Maupertuis’s Principle of Least Action: Epistemology and Metaphysics
No full textThe paper deals with Pierre-Louis Moreau de Maupertuis’s (1698-1759) writings on the principle of least action (PLA). I discuss Maupertuis’s philosophical interpretation of the PLA by analysing three of his papers (1740, 1744, 1746), in order to assess the overall consistency of his argument. As I shall argue, Maupertuis presents the PLA as a universal principle of nature, this being at odds with the empiricist inspiration of his epistemology. Maupertuis’s attempt to introduce conceptual elements borrowed from the Leibnizian tradition into a Newtonian-inspired framework creates in fact a tension that is difficult to overcome