1,721,064 research outputs found
Storie del ragno e della tela. Trasformazioni di un topos culturale dentro e oltre il testo
Full text linkQuesto volume raccoglie alcuni dei contributi presentati nella giornata di studi del Dottorato in Studi linguistici, filologici e letterari dell’Università di Macerata Storie del ragno e della tela. Trasformazioni di un topos culturale dentro e oltre il testo. Figura di perizia e ingegnosità, di fragilità o minaccia, il ragno e la sua opera percorrono la tradizione testuale e quella figurativa assumendo significati diversi: dall’antichissimo mito di Aracne al fumetto del XX secolo, essi costituiscono un topos poliedrico ricco e perfettamente attivo
Investigating extreme sea level components and their interactions in the Adriatic and Tyrrhenian Seas
Full text linkCoastal hazards represent an existential threat to Italian coastal regions since they host important economic centers related to manufacturing and tourism. Knowledge of potential extreme sea levels (ESL), their component, and their interactions are essential to better evaluate potentially hazardous future extreme events in a changing climate and possible effects on the design of coastal structures. Hence, in this study, we investigate the interaction between tide and surge for extreme conditions of sea level in 9 locations along the Italian coastline facing both the Adriatic and the Tyrrhenian Seas and all in a semi-diurnal tidal regime. First, we introduce a novel dependence metric, i.e., the β factor, in support of the classical Kendall's τ to preliminary assess the effect of the dependence between tide and surge when conditioned on ESL on the variance of ESL, and then we quantify such effect using a copula-based framework. Here, the surge component is determined via the concept of skew surge, i.e., the difference within a tidal cycle between the maximum observed sea level and the predicted high tide (irrespective of the time of occurrence), to remove any random effect in the interaction due to the timing of the tidal peak. Our results show that ESL components, i.e., tide and skew surge, are negatively dependent, i.e., high/low values of the surge are associated with low/high values of the tide, in all the stations investigated, and that higher values of dependence, measured with Kendall's τ, can be observed in the Adriatic Sea, around −0.6, while lower values in the Tyrrhenian Sea, around −0.45, with the exception of Palermo. In general, an increase in ESL for higher quantiles is observed when the negative dependence between tide and surge is explicitly modeled. Moreover, our results show that the β factor can help quantify the relative contribution of tide and surge on the variability of ESLs. More specifically, small β refers to cases when tide and surge are similar in their magnitude, e.g., Palermo, while values of β close to 1 refer to the case when one component dominates the other. In the former case, ESLs obtained from a model that does not account for the dependence between tide and surge will result in ESL estimates with larger variability. On the other hand, when one component dominates the other, the variability of ESLs is slightly influenced by the model used for tide and surge, i.e., dependent or independent. We can then conclude that by explicitly modeling the dependence between tide and skew surge we can improve estimates and inference of ESLs.Hydraulic Structures and Flood RiskCoastal Engineerin
Meat Production and Market in Italy
Full text linkAim of this review was to describe the Italian meat production and market.
The weight of Italian meat production in terms of the national agriculture gross domestic product (GDP) is around the 25%. The present review will analyze the market and the productive systems of the main types of meat sold in the Italian market focusing the attention on their strength and weakness points as well as the possible future developments. The final part of the article will evaluate the recent trends of consumptions for the different meat in Italy as well as the expectations of the Italian consumer when buying meat products
Chronic administration of pharmacologic doses of vitamin E improves the cardiac autonomic nervous system in patients with type 2 diabetes
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Indagine sul movimento della popolazione canina catturata e accolta nei canili gestiti dalle aziende sanitarie locali della Regione Veneto
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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