1,721,047 research outputs found
Il corpo come prospettiva di senso nell'agire educativo
No full textIl contributo affronta il tema del corpo come prospettiva di senso nell'azione educativ
Indoor air quality at school and students’ performance:Recommendations of the UNESCO Chair on Health Education and Sustainable Development & the Italian Society of Environmental Medicine (SIMA)
Full text linkThe issue of indoor air quality (IAQ) concerns 64 million students across Europe, but it is still
a neglected topic, although it impacts both their health and learning outcomes. Classroom
microclimate is the first key factor determining a healthy or unhealthy school environment, and
it is influenced by ventilation, temperature and humidity rate. Classrooms are usually crowded,
overheated and poorly ventilated, thus resulting in possible increases of carbon dioxide (CO2), that
can cause several problems when its concentrations exceed the value of 0.15 percentage volume
of CO2 (1500 ppm) or even at lower levels (1000 ppm). CO2 can also arise from outside the
school, being widely produced by combustion of fossils or road traffic. Anthropogenic activities
are responsible for the emission of nitrogen dioxide (NO2) and polycyclic aromatic hydrocarbons
(PAH) too, which represent other possible external contaminants potentially impairing IAQ. Further
dangerous exposures for students’ health are those related to natural emission of gas Radon, which
typically accumulates in poorly ventilated classrooms, and volatile organic compounds (VOCs,
released by building materials, paints, furnishings, detergents), while chemicals substances (i.e.
cyanoacrylate, lead, cadmium, nickel) might be contained in school materials. Finally, particulate
matters (PM2.5 and PM10) originating from road traffic, domestic heating or industrial activities
represent additional possible contaminants impacting schools’ air quality. Poor IAQ might result in
mild adverse events (i.e. headaches, nausea etc.) or cause respiratory problems. More frequently,
IAQ affects students’ attention and their school performances, as widely documented by many
studies. Standardized tests administered to pupils exposed to poor IAQ (to assess reading and
mathematical abilities) systematically result in worse outcomes compared to students staying in
healthy classroom environments. In this paper, we present recommendations of UNESCO Chair
on Health Education and Sustainable Development and Italian Society of Environmental Medicine
(SIMA) to ensure an optimal IAQ at school, including some post-COVID-19 issues
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
Il periodico «L’Università italiana» e il dibattito sullo stato giuridico ed economico dei professori universitari nel secondo dopoguerra (1946-1948)
No full textDidattica e Didattiche disciplinari nella formazione degli insegnanti: alcuni nodi da sciogliere
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