Search results for "versification"
showing 10 items of 185 documents
Cattle seed dispersal services and perspectives for management in a high biodiversity Mediterranean silvopastoral system
2019
In Mediterranean traditional silvopastoral systems are composed mostly with oaks, with an overall lack of fleshy-fruited species, key elements in Mediterranean flora. A mixed composition may enhance biodiversity and diversify fodder for livestock, and at the same time guarantee higher resistance, resilience and a richer network of ecological interactions. Here we investigated the interactions of cattle and native fleshy-fruited species in a high biodiversity silvopastoral system inside the last large forest remnant in western Sicily, Italy. Along two fruiting seasons we used sampling transects covering the gradient from the forest to the pastureland and analyzed 132 cattle dungs, of which 4…
Does diversification pay in the app market? Evidence from Apple's App Store and Google Play
2016
In this paper we address the study of the effects of product line diversification on firm performance in the mobile application market. Specifically, we shed light on whether the distribution platform ecosystem where developers commercialize their apps influence the effect of product line diversification, i.e., diversification across different app categories, on developer sales performance. To these purposes, we compare the sales performance of diversified developers with that of category-specialized developers in the two major app stores (namely, Apple’s App Store and Google Play). Our results show that the diversification strategy has a positive impact on developer sales in Google Play, w…
«Humanae ac divinae litterae». Gli scritti di cultura medievale e umanistica di Mauro Donnini
2016
Questo intervento trae spunto dalla pubblicazione di un volume di Mauro Donnini («Humanae ac divinae litterae». Scritti di cultura medievale e umanistica, Spoleto [PG], Centro Italiano di Studi sull’Alto Medioevo [CISAM], 2013), nel quale lo studioso presenta 46 dei suoi studi sulla cultura e la letteratura medievale e umanistica, scritti fra il 1979 e il 2012. I principali temi affrontati sono l’edizione critica di testi mediolatini e umanistici; problemi letterari, di lingua e stile; le versificazioni; il riuso delle "auctoritates" classiche; la narratologia e le tecniche di analisi del racconto. This paper takes remark by the publication of «Humanae ac divinae litterae». Scritti di cultu…
Common Core in Danger? Personalized Information and the Fragmentation of the Public Agenda
2021
The diversification of information sources has reignited the controversy on media-induced fragmentation endangering social integration. The media's capability to set the public agenda and create issues as a common core is a pivotal part of the public sphere and contributes fundamentally to society's cohesion. Algorithm-driven sources like social media that personalize content to the preferences of individuals and their social networks are considered agents of fragmentation of the public sphere. Politically extreme individuals relying on them may be particularly vulnerable to losing touch with society's common core. We employ an innovative operationalization of fragmentation on the individu…
Diversification of diversity: Migrations, cultural pluralism and urban transformations in Palermo (Italy): a case study
2021
Italy experienced the transition from a country of emigration to a country of immigration only in the last decade of the 20th century. The extreme heterogeneity of the Italian scene – from the distribution and variety of productive sectors and local economic dimensions, to the geographical, cultural and linguistic varieties – results in an incredibly differentiated background on which the phenomenon of migrations fits as multiplier of diversity. But there are some particular fields in Italy where the challenges of superdiversity appear to be more prominent: the impact on the school system, in terms of linguistic-cultural pluralism; the change in religious belonging and identities; the dynam…
4D paleoenvironmental evolution of the Early Triassic Sonoma Foreland Basin (western USA)
2017
In the wake of the Mesozoic, the Early Triassic (~251.95 Ma) corresponds to the aftermath of the most severe mass extinction of the Phanerozoic: the end-Permian crisis, when life was nearly obliterated (e.g., 90% of marine species disappeared). Consequences of this mass extinction are thought to have prevailed for several millions of years, implying a delayed recovery lasting the whole Early Triassic, if not more. Several paradigms have been established and associated to a delayed biotic recovery scenario expected to have resulted from harsh and deleterious paleoenvironments. These paradigms include a global anoxia in the marine realm, a “Lilliput” effect, and the presence of “disaster” tax…
Biodiversity dynamics and their driving factors during the Cretaceous diversification of Spatangoida (Echinoidea, Echinodermata)
2004
Abstract Variations in recorded diversity over time present a scrambled signal that is modulated by a large number of variables: the potential of particular life forms to generate evolutionary innovations, external constraints induced by the environment in its broad sense, the heterogeneity of the fossil record and the analytical artefacts due to sampling bias. A key question is how to characterise and quantify the separate input of any given factor in the overall diversity signal. This paper explores the structure of diversity data for spatangoid heart urchins and the sensitivity of recorded diversity to different factors of analytical bias (length of geological periods, proportion of pala…
Molecular phylogenetics and historical biogeography of the west-palearctic common toads (Bufo bufo species complex)
2012
In most pan-Eurasiatic species complexes, two phenomena have been traditionally considered key processes of their cladogenesis and biogeography. First, it is hypothesized that the origin and development of the Central Asian Deserts generated a biogeographic barrier that fragmented past continuous distributions in Eastern and Western domains. Second, Pleistocene glaciations have been proposed as the main process driving the regional diversification within each of these domains. The European common toad and its closest relatives provide an interesting opportunity to examine the relative contributions of these paleogeographic and paleoclimatic events to the phylogeny and biogeography of a wide…
La recherche en Management du Sport en « francophonie » : L’avènement d’un écosystème
2021
This paper aims to synthesize research on the Management of Sports Organizations (MOS) in France. Three parts structure this voluntarily simplifying contribution, very personal and collective at the same time through the direct and indirect contributions of many researchers. First of all, two historical parts between the 1960s and the 2000s provide a first disciplinary and then thematic perspective in order to make a French-speaking retrospective of the dynamics of scientific production. A last part in the form of a conclusion and an opening seeks to characterize the recent dynamics of MOS research (specialization, interaction, diversification) according to disciplines and/or objects of stu…
Special Issue on “Recent Developments on Modeling and Control of Hybrid Electric Vehicles”
2016
Environmental pollution and energy shortages are not only the two major problems currently in the sustainable development of the automotive industry, but also the two major bottlenecks in the global automotive industry. Facing the enormous requirement of energy-saving and environment protection, the development of new energy vehicles have become an important measure to solve this problem. Recently, hybrid electric vehicles (HEVs) or electric vehicles (EVs) have become a hot topic from both theoretical and practical perspectives. Among various types of electric vehicles, hybrid electric vehicles (HEVs) — or as they are commonly dubbed “hybrid vehicles” — offer the distinct advantages of ener…