1,721,221 research outputs found
Proposta per a la conservació del vidre històric en el patrimoni arquitectònic
Full text linkTreballs Finals de Grau de Conservació-Restauració de Béns Culturals. Facultat de Belles Arts. Universitat de Barcelona, Curs: 2020-2021, Tutor: Martínez Gil, Esther[cat] El coneixement de la història i evolució tècnica en la manufactura del vidre pla de finestra pot contribuir a percebre‟l com un element més dins el conjunt d‟un edifici catalogat com a Patrimoni Arquitectònic. Difondre la contemporaneïtat d‟aquest tipus de vidre amb la resta de materials de construcció podria obrir una via per a la seva salvaguarda i conservació. El treball en destria la història i l‟evolució tècnica i se centra en els sistemes productius industrials del primer terç del segle XX tot enfocant la seva anàlisi en un cas pràctic: la identificació del vidre antic fruit d‟aquests processos productius que encara es conserva a la seu social de l‟entitat cultural “Casino Llagosterenc” a Llagostera (Gironès). Tenint en compte els principis institucionals i el nivell de protecció municipal i a partir de la contrastació entre el fons documental i l‟estat actual de l‟edifici, s‟estableixen uns criteris per a la seva conservació i una proposta d‟actuació que respecta l‟ús actual de les instal·lacions i els seus valors patrimonials.[eng] Knowledge of the history and technical development of the production of sheet glass for windows can contribute to the understanding of the role it plays in the overall architectural heritage of a listed building. Dating the production of this type of glass alongside the rest of the construction materials can help to safeguard and restore it. The study investigates the history and technical developments of industrial production methods of the first three decades of the 20th century with regard to a practical case study: the original glass which is still to be found in the windows of the building of the cultural society known as the “Casino Llagosterenc”, in the town of Llagostera in the province of Girona, north-east Spain. The study establishes a series of criteria for the conservation of the glass and actions to be undertaken, bearing in mind institutional principals and municipal regulations with regard to listed buildings, using archive material and noting the current state of conservation and uses of the building
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
Disolventes verdes: D-Limoneno, Carbonato de propileno y DBE
Full text linkTreballs Finals de Grau de Conservació-Restauració de Béns Culturals. Facultat de Belles Arts. Universitat de Barcelona, Curs: 2023-2024, Tutor: Martínez Gil, Esther[spa] En los procesos de limpieza de obras policromadas se utilizan habitualmente mezclas de disolventes provenientes de fuentes no renovables, que suelen ser contaminantes o tóxicas para el ser humano y perjudiciales para el medio ambiente. En la búsqueda de una alternativa más ecológica y sostenible se realiza una reseña bibliográfica de los disolventes verdes que actualmente están en el mercado y son usados en restauración. Se realiza una recopilación de sus principales usos y características obteniendo como resultado
una tabla comparativa. A partir de esta tabla y de casos de estudio se eligen tres disolventes (D-Limoneno, Carbonato de propileno y DBE) como alternativa a la tríada de disolventes del Test de Cremonesi (Isooctano, Acetona y Etanol). La efectiva remoción de sustancias filmógenas de ambas tríadas se comprueba mediante
observaciones visibles y mediante fluorescencia inducida por rayos UV, utilizando un microscopio digital de superficie, en muestras preparadas con barniz dammar, goma laca, Paraloid®, Varnish Regal Gloss y Acril 33. También se realizan pruebas sobre una obra original que presentaba un barniz oxidado de resina colofonia.
El resultado permitió observar que la tríada verde puede utilizarse como una buena alternativa a los disolventes del Test de Cremonesi, y que el disolvente DBE presenta las mejores características por ser menos agresivo para la obra, más sostenible para el medio ambiente y menos tóxico para el restaurador.[eng] In the cleaning processes of polychrome works, mixtures of solvents from non-renewable sources are usually used, which are usually pollutants or toxic to humans and harmful to the environment. In the search for a more ecological and sustainable alternative, a bibliographic review of the green solvents currently on the market and used in restoration is made. A compilation of their main uses and characteristics is made, resulting in a comparative table. Based on this table and case studies, three solvents (D-Limonene, Propylene Carbonate and DBE) are chosen as an alternative to the triad of solvents of the Cremonesi Test (Isooctane, Acetone and Ethanol). The effective removal of filmogenic substances of both triads is verified by visible observations
and by UV-induced fluorescence, using a digital surface microscope, on samples prepared with dammar varnish, shellac, Paraloid®, Varnish Regal Gloss and Acril 33. Tests are also carried out on an original work that presented an oxidized rosin resin varnish. The results showed that the green triad can be used as a good alternative to the solvents of the Cremonesi test, and that the DBE solvent has the best characteristics as it is less aggressive for the work, more sustainable for the environment and less toxic for the restorer
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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