1,720,967 research outputs found
Application of artificial neural network for the identification of fresh water bacteria.
No full textA method based on artificial neural network (ANN) for monitoring aquatic bacteria which would be useful for health care is presented. Environmental micro-organisms include a large number of taxa. Some species that normally are not pathogenic can represent a risk in certain conditions, such as old people and immuno-compromised individuals. A system based on unsupervised ANN has been set up using the fatty acid profiles of standard strains, obtained by gas-chromatography, as learning data. The Kohonen output map resulted in a powerful tool for identification of fresh isolates coming from a line of the major civil water system of Genova (Italy)
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
A database for the analysis of hla single nucleotide polymorphisms based on dna microarray technology
No full textA data base is being set up aimed to collect information about HLA profiles obtained from specific microarrays. Both image analysis techniques to identifye the spots and the data structure of the database is presented. The system is in a preliminary phase, however significant results have been obtained, mainly as relates to finding spots, distinguishing spots from errors and of speedy image processing. For transplant patient testing as relates organ compatibility, the HLA profile information is crucial. Moreover the time in which the referral reaches the decision making point is extreamly important. For this reason, the possible implementation of an HL7 interface that will alllowing sharing they information by a web-service is considered
Identification of drinking water bacteria by means of artificial neural network analysis of gas-chromatographic data
No full textExperimental design setup for the determination of the diffusion coefficient of human IgG through fibronectin tubes
No full textThis paper presents the experimental set-up design for the determination of the diffusion coefficient of human IgG through Fibronectin (Fn) tubes. This work has been carried out as a part of a colloborative project aiming to develop novel engineering bioartificial nerve grafts with which optimize and improve surgical peripheral nerve repair. This work is complemented by computer modeling of the incorporation/release diffusion dynamics of soluted, including therapeutic antibodies. Non-immunogenic neutralizing human antibodies anti-TGF-ß1 suitable for clinical use as locally derived therapies will be used in the project in order to prevent inflammation and scarring. In fact, inflammation and scarring are enhanced by TGF-ß1 production by macrophages limphocites etc
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
- …
