1,720,961 research outputs found
An Activity Classifier based on Heart Rate and Accelerometer Data Fusion
Full text linkThe European project ProeTEX realized a novel set of prototypes based on smart garments
that integrate sensors for the real-time monitoring of physiological, activity-related and environmental
parameters of the emergency operators during their interventions. The availability of these parameters
and the emergency scenario suggest the implementation of novel classification methods aimed at
detecting dangerous status of the rescuer automatically, and based not only on the classical activityrelated
signals, rather on a combination of these data with the physiological status of the subject. Here
we propose a heart rate and accelerometer data fusion algorithm for the activity classification of
rescuers in the emergency context
Emergency and work
No full textIn most recent years, technological advances have brought in consumer electronics many portable applications that have become part of our daily life. Miniaturized headphones, mp3 players are only an example of this trend. Leveraging on the low cost and versatility of these devices, some companies have launched new products combining the portability of these systems with the possibility of using these devices as support for some common human activities. In parallel with this technological and market evolution, awareness raised among public opinion about the need of contrasting accidents occurring to those people who work in harsh conditions and need to increase safety and possibly efficiency of intervention. This need is particularly enhanced for professional categories such as fire-fighters and Civil Protection rescuers
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
Assessment of Sensing Fire Fighters Uniforms for Physiological Parameter Measurement in Harsh Environment
No full textIn the last few years, much effort has been devoted to the development of wearable sensing systems able to monitor physiological, behavioral, and environmental parameters. Less has been done on the accurate testing and assessment of this instrumentation, especially when considering devices thought to be used in harsh environments by subjects or operators performing intense physical activities. This paper presents methodology and results of the evaluation of wearable physiological sensors under these conditions. The methodology has been applied to a specific textile-based prototype, aimed at the real-time monitoring of rescuers in emergency contexts, which has been developed within a European funded project called ProeTEX. Wearable sensor measurements have been compared with the ones of suitable gold standards through Bland-Altman statistical analysis; tests were realized in controlled environments simulating typical intervention conditions, with temperatures ranging from 20°C to 45°C and subjects performing mild to very intense activities. This evaluation methodology demonstrated to be effective for the definition of the limits of use of wearable sensors. Furthermore, the ProeTEX prototype demonstrated to be reliable, since it produced negligible errors when used for up to 1 h in normal environmental temperature (20°C and 35°C) and up to 30 min in harsher environment (45°C)
Assessment of sensing fire fighters uniforms for physiological parameter measurement in harsh environment
No full textIn the last few years, much effort has been devoted to the development of wearable sensing systems able to monitor physiological, behavioral, and environmental parameters. Less has been done on the accurate testing and assessment of this instrumentation, especially when considering devices thought to be used in harsh environments by subjects or operators performing intense physical activities. This paper presents methodology and results of the evaluation of wearable physiological sensors under these conditions. The methodology has been applied to a specific textile-based prototype, aimed at the real-time monitoring of rescuers in emergency contexts, which has been developed within a European funded project called ProeTEX. Wearable sensor measurements have been compared with the ones of suitable gold standards through Bland-Altman statistical analysis; tests were realized in controlled environments simulating typical intervention conditions, with temperatures ranging from 20°C to 45°C and subjects performing mild to very intense activities. This evaluation methodology demonstrated to be effective for the definition of the limits of use of wearable sensors. Furthermore, the ProeTEX prototype demonstrated to be reliable, since it produced negligible errors when used for up to 1 h in normal environmental temperature (20°C and 35°C) and up to 30 min in harsher environment (45°C). © 2012 IEEE
SMART GARMENTS FOR EMERGENCY OPERATORS: RESULTS ON LABORATORY AND FIELD TESTS
No full textThe first generation of ProeTEX prototypes has been completed at the end of August 2007. In the following period two main activities have involved the project partners. On one hand new technologies (in terms of sensors and devices) to be integrated in the next releases of prototypes have been developed; on the other hand intensive test sessions on the first prototype (both in laboratory conditions and simulating real operative scenarios) have been carried out. This paper is mainly focused on this second facet. Great efforts have been dedicated to the trials for different reasons: firstly to investigate the appropriateness and efficiency of the system in normal and harsh conditions; secondly to obtain useful indications regarding usability and efficacy by the endusers involved in the project. The results of the trials have been used to define the specifications of the second generation of prototypes, that will be released within the end of 2008
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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