1,720,993 research outputs found
Mothers and children's evaluation of seriousness in autobiographical negative events: an explorative study
No full textThe work presents some explorative analyses on mothers' and children ability to evaluate the seriousness of negative physical events experienced by children, an issue particularly relevant from an applied perspective
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
L’ossessione di difendere il suolo
No full textdescrive
la nostra sensazione di disorientamento, panico: ci sentiamo persi. I detti
popolari non sono mai banali e trattengono in loro verità antiche eppure attuali
che faremmo bene ad ascoltare ancora. La terra sotto i piedi è ciò che ci
sorregge e ci permette di stare sulla Terra. La stessa forza di gravità, a ben
pensarci, non fa che incollarci a terra come per ricordarci il legame imprescindibile
che abbiamo con il suolo. Il suolo ci regge. Ci dà cibo e acqua pulita.
Regola la temperatura. È protagonista nel ciclo di vita di molti elementi
vitali, primo fra tutti il carbonio. Trattiene in sé molta biodiversità terrestre.
È origine di ritrovati farmaceutici da millenni. Senza suolo come senz’aria
o
acqua, nessuno di noi esisterebbe. Ecco perché se ci mancasse la terra, non
potremmo reggerci. Eppure da alcuni anni abbiamo ampiamente deciso di
disobbedire a quell’antico proverbio iniziando a consumare quella terra sotto
i nostri piedi. È quello che chiamiamo consumo di suolo e che rappresenta
una delle più irreversibili azioni d’insostenibilità di cui si macchia l’uomo
sulla Terra. Un uomo impazzito che sta distruggendo ciò su cui poggiano i
suoi piedi, la sua esistenza, il suo futuro. Ma quanto ne è consapevole? Noi
crediamo assai poco, altrimenti l’indignazione sarebbe ben più presente e il
senso di colpa per il consumo di suolo sarebbe più diffuso tra coloro che hanno
la facoltà di decidere del futuro del suolo stesso. La minaccia alla quale esso
è quindi sottoposto nasce ben prima delle colate d’asfalto e di cemento che
possono coprirlo. Nasce nelle nostre teste, laddove il concetto di cos’è il suolo
è assente o troppo debole o confuso o banalizzato.
La prima azione di tutela del suolo è capire “chi è costui”. Una necessità
di conoscenza che non deve né può esaurirsi con i primi anni di scuola o grazie
a qualche frettolosa battuta dell’amico agronomo o seguendo qualche
ora di webinar. Per sapere cos’è il suolo serve volontà, curiosità, pazienza e
una buona dose di appassionamento, meglio se attraverso incontri pratici
con esso, ovvero stando a contatto con la terra
The obsession of safeguarding soil
No full text“It feels as if the earth is falling away under my feet” is a commonly used way of describing a sense of disorientation or panic, of feeling lost. Sayings like this are never commonplace, however; they often express truths as ancient as they are apposite and we would do well to listen. The ground beneath our feet is what bears our weight and enables us to stand on the Earth. It is after all the force of gravity that keeps our feet on the ground, as if to remind us of our ineluctable attachment to the soil. Soil supports us. It gives us food and clean water. It regulates the temperature. It plays a leading role in the life cycle of many vital elements,
carbon above all. Soil is one of the Earth’s most biodiverse components.
It has been an invaluable pharmaceutical resource for thousands of years. Just as our lives depend on air and water, none of us could exist without soil. So if the earth really did disappear from under our feet, we would indeed be lost. For some years now, however, we have thought nothing of ignoring this patent truth and happily set about depleting the ground beneath us. Known technically as soil consumption, this is one of the most irreversible of unsustainable
behaviours that blots man’s copybook here on Earth, an action of pure madness that is destroying the ground we walk on and with it our existence and our future. How aware are we of the situation? The answer must be ‘very little,’ otherwise there would be much more indignation and those who are responsible for the future of the soil would suffer a much more palpable sense of guilt. The origins of the threat hanging over soil lie much further back than the
surge of asphalt and concrete gradually covering it. They lie in our heads, where the concept of what exactly soil is is too weak or confused or hackneyed. The first step towards safeguarding the soil involves understanding exactly ‘what it is’. An imperative for which the first years in school must not and cannot suffice; nor can an offhand platitude of an agronomist friend nor the odd snatched hour spent following a well-meaning webinar. Really to comprehend
what soil is requires willpower, curiosity, patience and a substantial dose of passion, and if at all possible it should include practical encounters with soil, planting feet firmly on the ground
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
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