1,720,961 research outputs found
Relazioni sincrone e longitudinali tra comprensione del testo e risoluzione dei problemi matematici nelle classi seconda e quinta della scuola primaria: confronto tra bambini nativi italiani e bambini provenienti da contesti migratori
Full text linkI bambini che frequentano la scuola primaria possono mostrare difficoltà nella comprensione e risoluzione di problemi matematici che comprendono testo (problemi verbali). Tale difficoltà riguarda i nativi monolingui ma soprattutto gli stranieri bilingui, per i quali affrontare i problemi scritti nella seconda lingua (L2) può essere difficile, specialmente quando il testo è lungo e quindi la sua struttura sintattica è probabilmente più complessa. Esistono vari fattori di rischio e di protezione nei confronti di un’adeguata comprensione del testo dei problemi verbali; lo scopo di questa ricerca è contribuire a comprendere quali siano questi fattori e il ruolo che essi svolgono in riferimento alla corretta comprensione e risoluzione dei problemi matematici con testo scritto in una L2 ad ortografia trasparente, nello specifico la lingua italiana. A tal fine, sono stati condotti due studi sulle prestazioni dei bambini con sviluppo tipico della scuola primaria alle prove di Lettura (decodifica), Italiano (comprensione del testo) e Matematica di INVALSI, che l’ente ha somministrato nelle classi seconda e quinta della scuola primaria nell’ambito delle Rilevazioni Nazionali degli apprendimenti degli studenti in Italia negli a.s. 2015/2016 e 2018/2019. L’analisi dei dati innanzitutto evidenzia il valore predittivo della decodifica di lettura rispetto alla comprensione del testo e di quest’ultima nei confronti della risoluzione dei problemi matematici a livello sia sincrono che longitudinale sia per i nativi monolingui che per gli stranieri bilingui. Inoltre, alcuni fattori predicono maggiormente rispetto ad altri il successo o l’insuccesso scolastico e in maniera diversa in base alla cittadinanza. In particolare, per i bambini nativi avere uno status socio-economico-culturale (ESCS) medio-alto o alto è importante per il raggiungimento di più elevati livelli negli apprendimenti scolastici. Per i bambini stranieri, le difficoltà di comprensione dei problemi verbali, soprattutto con testo lungo, sono associate a maggiore distanza fonologica e sintattica tra L1 e Italiano, età di arrivo in Italia più tardiva e ESCS medio-basso. Al contrario, i bambini stranieri che frequentano la scuola con orario prolungato sono facilitati nel comprendere e risolvere correttamente i problemi matematici quando il testo è breve, indipendentemente dal loro ESCS
Occhio non vede cuore non duole: movimenti oculari e reattività autonomica a volti familiari
No full textFamiliarity of faces: Sense or feeling? An exploratory investigation with eye movements and skin conductance
No full textWhere does the experience of familiarity come from? Is it the same as sensory perception? Two novel approaches were combined to investigate the highly adaptive process of familiar face recognition: the inclusion of friends and family members as personally familiar faces and measures of eye movements and skin conductance responses (SCR). A sample of 16 university students was asked to look at photographs of 8 personally familiar faces (friends and relatives) and 8 unfamiliar faces. From the analysis of eye movement patterns, a preference for internal features (mouth, eyes, nose) for both familiar and unfamiliar faces emerged and a significant increase in electrodermal activity was found for personally familiar compared to unfamiliar faces. Higher SCR recovery values were found in response to friends. Findings from this exploratory investigation suggest that familiar faces are not looked at in a special way; instead we ‘‘feel’’ a sense of familiarity that comes and goes faster for relatives than for close friends
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
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