197,767 research outputs found
Ovidio Capitani e Dante
No full textProfilo storiografico della produzione dantesca di Ovidio Capitani. Dopo una dettagliata analisi della produzione scientifica riconducibile a temi danteschi di uno dei maggiori medievisti del Novecento, vengono presi in esame i riflessi danteschi nell'attività didattica e nell'organizzazione della ricerca di Ovidio Capitani. In modo particolare si insiste sull'interesse di Capitani per il pensiero politico di Dante
Composite neuropsychological batteries and demographic correction: Standardization based on Equivalent scores, with a revuiew of published data
No full textEquivalent Scores (ES; Capitani and Laiacona, 1988) is a 5-point scale that offers a solution to the problem of standardizing neuropsychological scores after adjustment for age and education, given that the common z- standardization is not generally applicable in these cases. ES are discussed, and their properties and limits are compared with those of z-standardization. In a battery of ES-standardized tests, the average ES (AES) for the whole battery can provide a measure of the overall cognitive level, free of the influence of age and education. We report empirical data from a battery composed of 10 ES-standardized tests, in order to discuss general properties of ES standardization. The expected mean of the AES is constant, regardless of the number or type of tests included. The standard deviation of the AES, however, is variable: it decreases in proportion to the number of tests, but increases in proportion to their intercorrelation. We provide general indications concerning the normality threshold, which are applicable to all batteries of ES-standardized tests regardless of the number and type
Different variables predict anomia in different subjects: A longitudinal study of two Alzheimer's patients
No full textTwo Alzheimer's patients participated in a longitudinal study of picture naming aimed at analysing the effect of lexical frequency, age of acquisition, stimulus familiarity, word length, name imageability, visual complexity and semantic category membership on naming success. The results were analysed with a new method [Capitani, E., & Laiacona, M. (2004). A method for studying the evolution of naming error types in the recovery of acute aphasia: A single-patient and single-stimulus approach. Neuropsychologia, 42, 613-623] that allows us to consider the consistency of responses to stimuli over repeated testing within clinical stages. The experiment was carried out as a longitudinal study of single cases, and the effect of each variable was estimated after removing the overlap with the other predictors. The semantic category of stimuli was not an influential factor for either patient. Other findings sharply distinguished between the two patients. In one case, disease-related decline consistently affected mainly late acquired names, whereas in the other case the decline affected names corresponding to low-familiarity items. To interpret this contrast, we further analysed the quality of the errors produced by each patient. This study shows that the psycholinguistic characteristics of a stimulus may exert varying influence in different patients, warranting further development of this line of inquiry. (C) 2007 Elsevier Ltd. All rights reserved
Managing alliances, partnerships, and joint ventures
No full textThis chapter summarizes the five main phases of the strategic alliance creation process: partner selection, due diligence, valuation and negotiation, implementation, and evaluation. The actors involved in the process range from internal managers in the engaged organizations to external consultants who aid partner selection and the definition of contractual conditions. Although some differences occur between the creation of different collaboration types, there are common success factors, such as trust among members, low ambiguity, and the compatibility and alignment of the participants’ strategy
Accurate and precise lattice parameters by selected-area electron diffraction in the transmission electron microscope
No full textLattice parameters for gold nanocrystals, quartz, and vesuvianite have been determined by electron diffraction in routine transmission electron microscopy (TEM) work, with precision and accuracy near to 0.1%, after correction for elliptical distortion. The distortion, measured in three different microscopes, is constant for each microscope and may be easily eliminated. Variable camera constants have been avoided by positioning the oriented specimen on the eucentric plane and using parallel illumination. The Current flowing in the First intermediate lens was kept fixed, assuring constant conditions of the TEM projecting system, with no further diffraction focus applied. Application of this method to micas from metamorphic rocks produced deviations between measured and expected values up to 0.8%. Although easy species distinction is still possible, minor crystal chemical differences within the sample may be lost. Likely causes of these deviations are the possible heterogeneous samples, as well as beam damage leading to cation loss with subsequent variation in basal spacings. RI Mugnaioli, Enrico/E-6237-2011; capitani, giancarlo/J-3445-201
The KDEL receptor: New functions for an old protein
No full textThe KDEL receptor is a seven-transmembrane-domain protein that was first described about 20 years ago. Its well-known function is to retrotransport chaperones from the Golgi complex to the endoplasmic reticulum. Recent studies, however, have suggested that the KDEL receptor has additional functions. Indeed, we have demonstrated that chaperone-bound KDEL receptor triggers the activation of Src family kinases on the Golgi complex. This activity is essential in the regulation of Golgi-to-plasma membrane transport. However, the identification of different KDEL receptor interactors that are inconsistent with these established functions opens the possibility of further receptor activities
Trattenimento spirituale indirizzato alle religiose : che contiene l'amor di Dio ed mezzi per corrispondere ai doveri del propio stado ...
No full textSign.: a-m\p8\sError tip. de sign.: en m\p3\s consta m\p2\sErro tip. de sign.: en m consta m<2
Introduzione
No full textIndividuazione delle principali linee di ricerca storica portate avanti da Ovidio Capitani in mezzo secolo di attività
Problematiche relative all’analisi mesostrutturale di conglomerati neogenici provenienti da depositi dell’avanfossa, epiliguri e neoautoctoni (Appennino marchigiano-romagnolo).
No full textA mesostructural analysis has been carried out on pebble-cobble surfaces belonging to various formations (Upper Tortonian-Early Pliocene) cropping out between the Savio, Marecchia and Foglia rivers (northern Apennines). The conglomerates occur at different structural levels: 1) in units belonging to the Umbro-Marche-Romagna Sequence, both underlying and overlying the allochthonous deposits of the Val marecchia thrust sheet, 2) in units belonging to the epi-Ligurian Sequence. The analysis of pitted and striated pebbles and cobbles, mesoscopic faults and fractures show evidences of three episodes of tectonic deformations. The first one, characterized by a NE-SW trending subhorizontal extension, is of Messinian age. This extensional episode could be related to the slowing in the outward migration rate of the Apennine deformational front during the late Tortonian-Messinian. The other episodes of deformations, of early Pliocene-Pleistocene age, are characterized by a main subhorizontal shortening direction trending NE-SW, the older one, and NW-SE, the younger one. The episode characterized by the NE-SW shortening direction is probably related to the main tectonic stress field acting in the Northern Apennines during the Neogene. The NW-SE shortening direction is more difficult to explain. It was detected in other sectors of the chain, where was linked to the tectonic activity of local trasverse structural elements. Indeed in the studied area there are transverse (transfer faults) structures that could be linked to this shortening direction. Another hypothesis is that the NW-SE shortening direction can be related to the sinistral transpressive stress field acting in the Northern Apennines during the Pleistocene
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