1,721,030 research outputs found
The My So'n temples in Vietnam: study of the materials for the preservation project
No full textThe archaeological site of My San is located in centra! Vietnam and is characterised by the presence of severa! Hindu temples. The most peculìar characteristic of the brick masonry is a special construction technique where the horizontal and vertical bonds between bricks are so tight that they hardly show as real joints. Where this bond ìs stili preserved no bìodeterioration ìs noticed on the surface of the wall, nor does biodeterioratìon penetrate inside the wall, as was the case with restored or cracked masonry. In order to carry out initial research on the masonry materi als some samples were taken during visits in 2000 and 200 I .A wide range of tests was carried out to characterise the properties of the bricks, the brick assemblages, and the binder or glue used between the bricks in the joims. The results increased knowledge and enabled better hypotheses to be made about the materia!, construction techniques, and the chemical nature of the joints used for group G of the buildings
Microbiological analysis of surfaces of Leonardo da Vinci’s Atlantic Codex: biodeterioration risk
Full text linkFollowing the discovery of discoloration on some pages of the Atlantic Codex (AC) of Leonardo da Vinci kept in the Biblioteca Ambrosiana in Milan, some investigations have been carried out to verify the presence of microorganisms, such as bacteria and fungi. To verify the presence of microorganisms a noninvasive method of sampling has been used thatwas efficient and allowed us to highlight the microbial facies of thematerial that was examined using conventional microbiological techniques. The microclimatic conditions in the storage room as well as the water content of the volume were also assessed.The combined observations allowed the conclusion that the discoloration of suspected biological origin on some pages of AC is not related to the presence or current attack of microbial agents
Italian Society for Agriculture, Food and Environmental Microbiology (SIMTREA) – Education
No full textA strategic goal of the SIMTREA is to educate
undergraduate and graduate students and
individuals at all levels in the agriculture, food and
environmental microbiology. In particular, students
of the courses taught by SIMTREA members should
demonstrate knowledge and understanding in the
following areas: biology of microbes, biodiversity
and agro‐food microbial resources, microbial
biotechnology, microbiology applied to the agrofood,
agro‐industry and environmental sectors.
In the future, work carried out by the Higher
Education Observatory will include a new survey of
the accredited courses, including doctoral ones.
SIMTREA is eager to make a major contribution to
the development of an European dimension in
microbiology teaching, joining discussion regarding
a strategy for microbiology education and
engagement via FEMS
Scripta manent? Assessing microbial risk to paper heritage
No full textPaper, like all other cultural heritage materials, degrades over time, but conservation slows down the rate of its deterioration There is a long history of cooperation between microbiologists and conservators of libraries and archival materials, but current approaches addressing paper deterioration need urgent reassessment to take full advantage of modern microbiological methodologies The present article discusses what we believe are the current priority research areas in assessing microbial risk to paper heritage, and reports studies on a 13th century Italian manuscript and on Leonardo da Vinci's Atlantic Codex which illustrate the problems and challenges encountered when dealing with microbial investigations of paper artworks The potential of using a more advanced microbiological approach is highlighte
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
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
- …
