1,721,002 research outputs found
Wolfsoniana Smart Museum. A Pilot Plant Installation of the PALM-Cities Project
No full textThis demo paper describes the pilot plant of the PALM-Cities Project, installed at a modern art museum in Genoa. The objective of the system is offering visitors a novel and immersive experience when visiting the exhibit. In fact, owing to automatic identification technologies, such as Near Field Communication (NFC) and the Quick Response Code (QR Code), people can interact with the surrounding environment by means of their own devices, e.g., smartphones or tablets, receiving personalized contents as they move in a given location. Different resources for the same artwork in the museum are delivered to different users on the basis of their preferences, such as, e.g., language, age and device
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
Genetic Improvement of wine yeasts for opposite adsorption activity of phenolics and ochratoxin A during red winemaking
No full textThe aim of this research was to acquire new strains of Saccharomyces cerevisiae exhibiting opposite characteristics of cell wall adsorption: very high adsorption activity toward the ochratoxin A, very low adsorption activity toward the pigmented phenolic compounds contained in musts from black grapes. For this purpose, starting from 313 strains of Saccharomyces cerevisiae, 12 strains were pre-selected and used to obtain 27 intraspecific hybrids. Eleven crosses out of 27 were validated as hybrids; the best five hybrids were used in guided winemaking at four Calabrian wineries. The employed experimental protocol has allowed to select yeast strains for their different adsorption activity, improving the strains by spore clone selection and construction of intraspecific hybrids. These results suggest an efficacious way to improve the characteristics of interest in wine yeasts
Analisi spaziale della dinamica di popolazioni di Bactrocera oleae (Gmelin) nell’areale olivicolo di Gioia Tauro (RC)
No full textUn metodo generale per la stima della funzione di mortalità. Applicazione alle popolazioni di Bactrocera oleae (Gmelin)
No full textOchratoxin A adsorption phenotype: an inheritable yeast trait
Full text linkThis study aimed to evaluate the inheritance of the trait ochratoxin A adsorption in two wine
strains of Saccharomyces cerevisiae and their 46 descendants. Each strain was inoculated in
triplicate in test tubes containing 10 ml of must obtained from the Calabrian Zibibbo white grape
variety, artifi cially contaminated with ochratoxin A to reach a total content of 4.10 ng/ml. The
microvinifi cation trials were performed at 25°C. After 30 days, ochratoxin A values ranged from
0.74 to 3.18 ng/ml, from 0.01 to 2.69 ng/ml, and from 0.60 to 2.95 ng/ml respectively in wines, in
lees after washing, and in the saline solution used to wash the lees. The analysis of OTA in wines
was performed to fi nd the residual toxin content after yeast activity, thus obtaining technological
evidence of yeast infl uence on wine detoxifi cation. The analysis of OTA in lees after washing was
performed to distinguish the OTA linked to cells. The analysis of OTA in the saline solution used
to wash the lees was performed to distinguish the OTA adsorbed on yeast cell walls and removed
by washing, thus focusing on the adsorption activity of wine yeast through electrostatic
and ionic interactions between parietal mannoproteins and OTA. Ploidy of the two parental
strains was controlled by fl ow cytometry. Results demonstrated that the ochratoxin A adsorption
is genetically controlled and is a polygenic inheritable trait of wine yeasts. The majority of the
descendants are characterized by a great and signifi cant diversity compared to their parents.
Both the parental strains had genome sizes consistent with their being diploid, so validating the
observed results. These fi ndings constitute an initial step to demonstrate the mechanisms of
inheritance and establish breeding strategies to improve the ochratoxin A adsorption trait in wine
yeasts. This will allow a decrease in the ochratoxin A content of contaminated musts during
winemaking, by using genetically improved wine yeasts
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
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