471 research outputs found
The species problem in a ciliate with a high multiple mating type system, Euplotes crassus
No full textLa Cartografia nei suoi molteplici aspetti, reali ed immaginari. 8 aprile-21 maggio 2005. Mostra in occasione della riapertura al pubblico del Museo Universitario del Dipartimento di Scienze della Terra "Gemma 1786"
No full textLa riapertura al pubblico del Museo Universitario del Dipartimento di Scienze della Terra, rinominato "Gemma 1786", è stata un'occasione per presentare al pubblico in una veste rinnovata le collezioni museali di minerali, rocce e carte.Le carte sono espressione dell'uomo e della sua necessità di conoscere il territorio in cui vive. Le carte raccontano quindi dell'uomo e del territorio.La mostra, realizzata in collaborazione con l'Archivio Storico del Comune di Modena e la Biblioteca d'Arte L. Poletti di Modena, ha voluto mettere a confronto rappresentazione cartografiche antiche e recenti del territorio modenese con rivisitazioni artistiche dell'artista Giovanni Valbonesi realizzate con tecniche a collage
MCS/SEL/BAS Program. An Overlapping Clustering Method with Examples from Mating TypeInteraction of Ciliated Protozoa.
No full textThe MCS/SEL/BAS program provides a method for group recognition, based on a criterion of homogeneity within the groups. The basic aim of this clustering method is not to 'force' data into a number of separate groups, as it allows the possibility that a given element in the data set can be assigned to more than one group. Moreover, a parsimonious path through the groups is sought by selecting groups on the basis of two suitably chosen, peak-ordered criteria. This selection continues until a covering of the data set is obtained (i.e., until each element in the data set is assigned to at least one group). Then relationships occurring among the set of selected groups are investigated by means of two coefficients, called overlapping and cohesion coefficient, respectively. The utility of this program has been demonstrated here in elaborating large sets of data derived from mating type interactions of ciliates, but it can be used also for analyzing data derived from a wide spectrum of compatibility phenomena exhibited by other living organisms. Algorithms of this program are written in BASIC and formulated in a conversational mode for processing on a Macintosh. A computer program (MCS/SEL/BAS) is available from G. Mancini upon request
Technology and incentive regulation in the Italian motorways industry
No full textIncentive regulation, Technology, Motorways industry, L52, L92,
Modelling interactions between state and private sector in a "prevoiusly" centrally planned economy
No full textSome aspects of the biology of Euplotes focardii, a new ciliates species from Antartica
No full textsome aspects of the biology of Euplotes focardii, a new ciliates species from Antarticahave been investigated, with particular respect to the molecular mechanisms of intraclonal recognitio
Institutional and regulatory reform of the Italian motorway industry: a first empirical assessment
No full textThe Italian highway industry has undergone an institutional and regulatory reform through the last 15 years, characterised by changes in ownership and the introduction of a regulatory framework based on price cap regulation. To assess the effect of the reforms on firms’ performance, we use information on a sample of Italian concessionaires (virtually representing all the industry) over the 1992-2003 period and 1) estimate the technical progress in the industry, thereby providing a reference value for the X factor in the price cap formula; 2) assess the relative productivity of private vs. public concessionaires; 3) evaluate whether price cap regulation has induced firms to use resources efficiently, 4) determine the possible effect of the inclusion of the quality index in the price cap formula. We find that the introduction of a price cap regime does not increase firms’ productivity whereas a sharp increase in maintenance costs is recorded, arguably due to the presence of the quality indicator in the price cap formula. Furthermore, firms appear to have gained from the privatisation process and from a technical progress occurred in the period. We also find high density economies and a steady and large increase in traffic
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