1,721,060 research outputs found
Chemical applications of escience to interfacial spectroscopy
No full textThis report is a summary of works carried out by the author between October 2003 and September 2004, in the first year of his PhD studie
Applications of eScience to interfacial chemistry
No full textThe UK eScience initiative has undertaken the unenviable task of providing the scientistwith computational tools to enhance the way in which science is performed.In this work, the experimental measurement of polarisation dependent reflectancesecond harmonic generation at the air/liquid interface was examined and tools producedto aid the process. All stages of the process are considered, the experimental stage, thedata workup and publication of results.Specifically covered were tools for remote monitoring and control of the experiment,automated archival and retrieval of raw data, and automated processing of data andhandling of these derived results.The tools were then used to investigate the behaviour of the laser dye Rhodamine6G at the air/water interface. The ease and reliability of recall of data afforded by thetools caused concerns to be raised about the repeatability of the experiment, and hencethe surface of pure water samples was also examined. The water data confirmed theacceptable bounds of the experimental results showing the Rhodamine 6G behaviourdid not follow the accepted model for bulk concentration of around 1 ? 10?5 mol dm?3but did conform to the model at other concentrations
Design of grid computing infrastructure to aid second harmonic generation studies at the liquid/air interface
No full textInterfacial Second Harmonic Generation can be used to study surface orientation and aggregation properties of molecules with respect to concentration. A study of the laser dye Rhodamine 6G at the air/water and oil/water interfaces probed the orientation of the dye molecules as a function of the bulk dye concentration and revealed the formation of surface aggregates at higher concentration. This study was used to aid the design of a grid computing service to enable the collection of quality data in an efficient fashion, thus enabling a scale up to high-throughput or parallel operation.Active involvement in the experiment revealed the requirement for a system that encompasses data throughout the laboratory process. This starts with the collection and storage of the raw data from the apparatus, and continues through the analysis, ending with the presentation in published works. The use of semantically rich techniques ensures that data can be exchanged between different programmes, helping to overcome the problems of file-type compatibility. The flexibility of the analysis path in the work results in traditional relational databases being inappropriate, so a more flexible data storage scheme was found using RDF. By using Publish and Subscribe technologies we are able to provide remote real-time monitoring of laboratory events. This allows for the detection of errors without being present during data collection
Dear Heart
No full textdear heart is an autoethnographic exploration around playwriting and creation processes. dear heart as an artistic offering is the textual record of the text-based experiment upon which this thesis is predicated. The thesis itself is a distillation around the methodology of the author’s process – a shareable articulation to serve as a bedrock for educational material in professional and academic settings. The author will articulate theoretical and analytical reflections of the role of instinct and positionality in the creation of performance texts, and to apply consciousness to the often-subconscious impulses of creation. The author interrogates the role of adaptation and community curiosity as methodology for other playwrights, through research into relational aesthetics and curational theory from visual art
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
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