1,720,986 research outputs found
Ricerca, sviluppo, implementazione e test di sistemi inerziali per applicazioni di AAL e di riabilitazione motoria
No full textIl tema di ricerca è inquadrato nell’ambito dello studio di soluzioni ICT per l’ausilio degli anziani in riferimento al mondo dell’AAL in ambiente domestico o ospedaliero. Tali soluzioni si basano sulla progettazione di sistemi basati su nodi sensori wireless con a bordo diverse unità di sensing. Gran parte del lavoro si è concentrato nell’analisi, studio e sviluppo di algoritmi di signal processing e sensor data fusion che fanno uso delle misure provenienti da un unità di sensing composta da quattro sensori MEMS quali un accelerometro triassiale, giroscopio triassiale, magnetometro triassiale e barometro. A partire dalle misure dei primi tre sensori, è stato implementato un Attitude and Heading Reference System (AHRS), ovvero un sistema che è in grado di stimare ad ogni istante l’orientazione nello spazio dell’unità di sensing. In seguito mediante l’uso di un filtro complementare, è stato sviluppato un secondo algoritmo di data fusion che fa uso di misure provenienti dal sensore barometrico e dall’AHRS per ottenere un’accurata stima dell’altitudine dell’unità di sensing. A partire da questi risultati, sono stati sviluppati dei sistemi wearable da adoperare in diverse applicazioni nel settore dell’AAL e della riabilitazione motoria. È stato realizzato un fall detector da posizionare sulla vita dell’anziano che sfrutta i dati accelerometrici e le accurate stime di orientazione e altitudine del dispositivo per rilevare in maniera automatica la caduta del soggetto. Un secondo campo di applicazione ha riguardato lo studio e sviluppo di un algoritmo per il calcolo di parametri spazio-temporali che caratterizzano la deambulazione di soggetto affetti da malattie neurodegenerative. L’ultimo studio prevede l’analisi e la caratterizzazione del gesto motorio nella pratica del Nordic Walking mediante l’utilizzo delle misure provenienti da sensori posizionati sui bastoncini del soggetto che cammina.The research topic is framed within the study of ICT solutions for the support of the elderly in reference to the world AAL in hospital or home environment. These solutions are based on the design of systems based on wireless sensor nodes with different on-board sensing units. Much of the work focused in the analysis, study and development of signal processing and sensor data fusion algorithms that make use of the measures coming from a sensing unit consisting of four MEMS sensors such as a triaxial accelerometer, triaxial gyro, magnetometer and triaxial barometer. Starting from the measurements of the first three sensors, has been implemented an Attitude and Heading Reference System (AHRS) that is able to estimate at each instant the orientation of the unit in the sensing space. Following, through the use of a complementary filter, it was developed a second data fusion algorithm
that makes use of measurements coming from the barometric sensor and dall'AHRS in order to obtain an accurate altitude estimation of the sensing unit. From these results, we have been developed wearable systems to be employed in various applications in the AAL and rehabilitation sectors. It has been realized a fall detector to be positioned on the life of the elderly that exploits the accelerometer data and accurate estimates of orientation and altitude of the device for automatically detecting the fall of the subject. A second field of application concerned the study and development of an algorithm for the calculation of spatial-temporal parameters that characterize the gait of a subject suffering from neurodegenerative diseases. The latest study provides for the analysis and characterization of the motor gesture in the practice of Nordic Walking through the use of measures from sensors placed on the subject's walking sticks
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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