1,721,163 research outputs found
I vetri
No full textLe indagini archeometriche sono state effettuate su frammenti vitrei provenienti da Rocca di Garda, databili dal V al IX secolo d.C. e afferenti a tipologie di manufatti di uso comune, quali bicchieri, calici e lastre da finestra. Gli obiettivi del lavoro sono orientati alla caratterizzazione della miscela vetrificabile impiegata e all’evoluzione delle tecnologie di produzione nel tempo.
I risultati dello studio archeometrico dimostrano come i materiali vitrei ritrovati a Rocca di Garda, databili dal IV all’VIII secolo, risultino essere perfettamente inquadrabili nel consueto panorama di vetri al natron altomedievali ritrovati in Occidente, sia come morfologia che come chimismo. Tali risultati supportano quindi l’ipotesi come durante il Medioevo non fu mai del tutto abbandonato l’uso del natron e che anche all’alba dell’altomedioevo, almeno in Italia, il vetro fosse ancora prodotto secondo l’antica tradizione a testimonianza di una continuità tecnologica, commerciale e culturale con le condizioni esistenti in passato. I vetri alle ceneri databili dal IX secolo in poi trovano buoni confronti in letteratura, sebbene l’esiguo numero di campioni non consenta di avanzare ipotesi conclusive
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
Tools for Collaborative Annotation: a Comparison among Three Annotation Styles
No full textThis report, inspired by three different annotation projects involving UNIMI research group, aims at understanding which annotation style performs better depending on goals, context and users. Moreover it derives some indications on the design of annotation systems adequate to goals, context and users
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
Designing Customized and Tailorable Visual Interactive Systems
No full textThis paper presents a novel participatory approach to the design of customized and tailorable visual interactive systems; it includes end users as domain experts in the design team. A design method is described which leads to two different visual specifications, one suitable for end users and the other suitable for software engineers. It is also shown how this second specification is directly mapped to the implementation architecture, based on XML technology. The discussion is supported by the description of an example in the mechanical engineering domain
Multi-facet Design of Interactive Systems through Visual Languages
No full textIn this chapter, it is recognized that the knowledge relevant to the design of an interactive system is distributed among several stakeholders: domain experts, software engineers, and humancomputer interaction experts. Hence, the design of an interactive system is a multi-facet activity requiring the collaboration of experts from these communities. Each community describes an interactive system through visual sentences of a visual language (VL). A first VL allows domain experts to reason on the system usage in their specific activities. A second VL, the state-chart language, is used to specify the system behavior for software engineers' purposes. A communication gap exists among the two communities in that domain experts do not understand software engineers jargon and vice versa. To overcome this gap, a third VL permits human-computer interaction experts to translate the user view of the system embedded in their visual language into a specification in the software engineering visual language
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