1,720,982 research outputs found
Conception optimisee par simulation Monte Carlo d’un compteur proportionnel multielement destine a la mesure du radon dans l’air
No full textProgettazione e simulazione Monte Carlo di un contatore proporzionale per misure in continuo di radon nell’aria ambiente
No full textAll’interno del laboratorio di Misure Nucleari del DIMNP è stato sviluppato un prototipo di un contatore proporzionale multicellulare (MCPC: Multi Cellular Proportional Counter) per misure in continuo della concentrazione di radon nell’aria ambiente. Il contatore utilizza un flusso di gas costituito da una miscela argon-propano (1%), a cui è aggiunta un’appropriata frazione di aria ambientale nella quale la concentrazione di radon deve essere misurata. L’argon-propano è il gas utilizzato per la rivelazione delle particelle alfa emesse dagli elementi radioattivi che si trovano nell’aria all’interno del contatore, cioè dal radon e dai suoi prodotti di decadimento
Monte Carlo Simulation of a New Air-mixed Gas-flow Proportional Counter for on-line Airborne Radon Activity Concentration Measurements
No full text
Realizzazione di un contatore proporzionale multicellulare per misure in continuo di radon nell’aria ambiente
No full text
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
- …
