1,721,077 research outputs found
'Assidua meditatio, propositum constantissimum'. Il concetto di metodo nell’Epistola 37 di Spinoza a Johannes Bouwmeester, tra il 'Tractatus de intellectus emendatione' e l’'Ethica'.
No full textAbstract
Nell’epistola 37 a Bouwmeester, su sollecitazione di quest’ultimo, Spinoza afferma la natura necessaria di un metodo di indagine relativo ai praestantissima (i fondamenti, le cose più alte e valenti) e lo sintetizza in punti di estrema chiarezza. Nel concludere, illustra la necessità di una adsiduam metitationem, congiunta ad animum, propositumque constantissimum, a un certum vivendi modum et rationem e a un finem. Accanto a un’idea di metodo fondata su una concezione dell’intelligere o intellectus definito come absoluta potentia capace di generare verità (come l’«automa spirituale» citato in TIE § 85), Spinoza pone dunque anche condizioni di carattere etico-pratico. Come vanno lette tali condizioni? Sono una semplice sollecitazione formale, una raccomandazione di circostanza, o richiedono di ripensare il concetto di metodo come via non esclusivamente teorica? L’epistola a Bouwmeester può allora essere letta come un ponte concettuale tra la teoria metodologica del TIE e alcuni luoghi dell’ultima parte dell’Ethica, in cui Spinoza offre indicazioni ‘pratiche’ sulla via perardua verso la vita beata ricorrendo, così come fa col suo amico e corrispondente, a ‘consigli’ ed ‘esortazioni
GEOPOLIMERI A BASE DI CENERI VOLANTI: STUDIO PRELIMINARE DELLE VARIAZIONI DI PESO E DEL RITIRO AL VARIARE DELL’UMIDITA’ RELATIVA
No full textI geopolimeri rappresentano una nuova classe di materiali a basso impatto ambientale con caratteristiche fisico-meccaniche paragonabili a quelle del cemento comune. Tuttavia la possibilità di utilizzare i geopolimeri come leganti alternativi al cemento necessita di una conferma attraverso la stessa tipologia di prove fisico-meccaniche a cui il cemento è normalmente sottoposto, in modo da rendere il confronto efficace. L’obbiettivo di poter classificare i geopolimeri come nuovi leganti per l’industria delle costruzioni può essere raggiunto solo attraverso una buona conoscenza delle differenze e/o analogie che esistono tra questa nuova classe di materiali e il cemento Portland.
Lo scopo del presente lavoro è quello di indagare il ritiro di materiali geopolimerici, parametro critico nella caratterizzazione di un materiale per l’industria delle costruzioni e di cruciale importanza per la durabilità e manutenzione a lungo termine delle strutture. Gli studi sulle proprietà ingegneristiche e sul ritiro di materiali geopolimerici sono ancora nella fase iniziale.
In questo studio preliminare viene studiato il comportamento di tre mix geopolimerici a base di ceneri volanti da carbone e di una malta cementizia come materiale di confronto. In particolare viene analizzato il comportamento del primo ritiro su campioni nei primi mesi di stagionatura e le variazioni dimensionali connesse ai cambiamenti di umidità su campioni al termine di un lungo periodo di stagionatura. Le prove sono state condotte a temperatura costante, variando l’umidità relativa, misurando regolarmente il peso e la dimensione dei campioni. I dati raccolti saranno utili alla costruzione di modelli previsionali per il ritiro dei geopolimeri, che al momento non esistono
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
Gender balance in alkali activated materials / geopolymers research
No full textThe aim of this study is to evaluate the gender balance in a topic of Materials Research related to the development of alkali activated materials (AAMs) including geopolymers. A great attention has been recently addressed to this topic as AAMs represent a new class of materials with sustainable features. The first paper on geopolymers was published in 1979 by Davidovits, but around early 2000s the research interest has increased and nowadays up to 1000 papers each year are published on International peer-reviewed journals (Scopus source) since 201
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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