1,721,161 research outputs found
On the Web service-based remote didactical laboratory: Further developments and improvements
No full textSistema distribuito di sensori mobili per il monitoraggio del campo elettromagnetico in ambiente urbano
No full textTongue carcinoma in young adults : a review of the literature
No full textA recent reduction in the number of smoke-related tumours has been observed thanks to the diffusion of anti-tobacco campaigns carried
out in the majority of developed countries. Nevertheless, as demonstrated by recent global epidemiologic studies, squamous cell carcinoma
of the mobile tongue appears to be progressively increasing in incidence, particularly among young adults and especially in females. The
driving mechanism responsible for such changes is still to be precisely defined. Several genetic studies have compared the mutational pattern of tongue squamous cell carcinoma in young adults to that of more elderly patients, without identifying significant differences that may
help in better characterising this subgroup of subjects. Tongue squamous cell carcinomas in young adults have been historically considered
as particularly aggressive clinical entities, with a high risk of loco-regional relapse, survival rates inferior to those of the general head and
neck cancer group and need for a more aggressive therapy. However, considering the most recent studies, prognostic results in this patient
group are heterogeneous and it is not possible to confirm this tendency. Thus, it is not justified to embrace different therapeutic approaches
according to patient age. Eventually, an additional element to consider when examining young subjects affected by tongue cancer is the
possibility of genetic predisposition. Alterations affecting pathways involved in DNA repair, surveillance of genetic stability or regulation
of cellular growth may determine an increased likelihood of developing head and neck cancers
Network of smart sensors for remote electromagnetic field monitoring with a fuzzy alarm reporting
No full textThe present paper proposes a network of mobile sensors in order to remotely measure
concerning environmental parameters. Taking advantage of wireless technology, the system is able to
exchange commands and data in numeric format with a querying remote client; displaced in a wide
area to be monitored, each measurement module is equipped with an isotropic electromagnetic field
smart sensor and a GPS module. Acquired data, according to a fixed sampling rate, are transmitted to a
remote PC for processing stage, by GPRS networks. Several solutions have been undertaken for
reducing noises and error contributes and the measurement system has been characterized in terms of
uncertainty, in order to guarantee reliability and accuracy. Data processing optimization is performed
by a fuzzy algorithm, previously tested, so getting the qualification of the decision-making stage with
particular attention paid to the statistical features of monitored process
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
- …
