1,720,958 research outputs found
Sul grado di approssimazione per una classe di integrali singolari
No full textIn this paper the degree of approximation for a class of singular integrals is studied. This class is large enough to include several well-known kinds of kernels. Hence some previous results due to A. Khan are generalized
Proprietà di alcune seminorme del secondo ordine
No full textWe obtain comparison and approximation properties for a class of second order seminorm acting on functions with values in a Banach space. we use a notion of generalized variation for such functions
Sull' approssimazione di una funzione con integrali singolari
No full textIn this paper we study the degree of approximation to a function by a general class of singular integrals which includes several well-known kinds of kernels. Hence some previous results due to Butzer and Khan-Umar are generalized
E-studium: blended e-learning for university education support
No full textIn the changing framework of education and training, the e-studium project proposes a dynamic and versatile education system, effectively managing the learning process and using Information and Communication Technologies (ICTs) to respond to the specific characteristics of a variety of different degree programmes and courses and, at the same time, to the individual needs of a wide audience of students disseminated throughout Italy. The organisation model adopted in e-studium is an integrated multiple instances e-learning system. At the kernel of e-studium is MetaLearn, a software integration component which connects the different information and authentication sources, such as the academic registrar (information about students) and faculties databases (data on lecturers and programmes) with the target multiple e-learning platforms. In the experiment the MetaLearn architecture has been implemented on top of a set of target Moodle Course Management System (CMS) instances, thus realising the blended e-learning approach. In this work the main architectural features of MetaLearn and the different phases of development and implementation of the e-studium project are presented. The results also include usage analysis and a discussion on the impact of the quality of teaching on students, and on the requirements posed on the academic members who participated in the project
E-studium: cooperazione tra tecnologie e-learning e didattica tradizionale
No full textNel panorama didattico-formativo in radicale cambiamento, il progetto e-studium propone una didattica dinamica e versatile, che supporta con efficacia il processo di apprendimento, utilizzando le nuove tecnologie ICT per rispondere in modo individualizzato alle esigenze di una ampia platea di studnti distribuiti sul territorio. Il modello organizzativo è quello di un e-learning in forma integrata,il così detto blended e-learning (o course management systems o course support systems), cioe’ di un rinnovamento della didattica universitaria in un’ottica di qualità, di un affiancamento della didattica in presenza con i servizi ed i materiali on–line che consentono una maggiore fruizione e partecipazione degli studenti (full-time e part-time)
E-studium: an Italian experience of blended e-learning for university education support
No full textIn the radically changing framework of education and training, the E-studium project (http://e-studium.unipg.it) developed at the University of Perugia, proposes a dynamic and versatile education system, managing effectively the learning process and using new ICT technologies to respond individually to the needs of a wide audience of students disseminated in the country. The organization model is an integrated e-learning system, known as blended e-learning (realized through the course management system Moodle), aiming at a renewal of academic education with a focus on quality of teaching, on support of in-class teaching by on-line services and materials, allowing better use and participation by both full-time and part-time students. Beside students, also academic teachers work as experimental subjects for the technologies implemented. In this work the "E-studium" project is presented showing the different phases of development, implementation and analysis of results including usage
Going 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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