1,721,149 research outputs found
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
"Programmi di formazione e agenda della ricerca in urbanistica: tratti e implicazioni dei processi di internazionalizzazione"
No full textIn un campo planetario sempre più urbano e sempre più interconnesso, il confronto tra le culture della pianificazione e della progettazione urbanistica sembra convergere sui grandi temi ispirati dalla coscienza dei limiti dello sviluppo, emersa con forza a partire dall’ultimo quarto del novecento.La mobilità internazionale delle conoscenze e delle intelligenze, attraverso il mondo accademico e professionale, stimola il reciproco apprendimento, frutto a volte anche di fertili incomprensioni e di scomode convivenze. Proprio per questi motivi è opportuno riflettere per cogliere appieno l’originalità e la reciproca influenza delle matrici che contribuiscono al discorso contemporaneo sul governo del territorio.La Società Italiana degli Urbanisti ha invitato a discutere sui modi e sulle forme del confronto tra la nostra cultura disciplinare - contraddistinta dalla forte attenzione alla forma dello spazio antropizzato e all’interazione tra processi di urbanizzazione e ambiente - e le altre culture del sempre più vasto orizzonte col quale interagiscono i nostri saperi, le pratiche professionali, la didattica e la ricerca scientifica
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
Endogenous and in vitro protoplasts of Valonia utricularis and Valonia aegagropila (Siphonocladales-Cladophorales complex, Chlorophyta)
No full textReduce cardiovascular risk through close follow up of the metabolic syndrome during menopause in women: a possible goal
Full text linkAfter a treatment period a significant reduction of BMI. HDL-cholesterol, tryglicerides, diastolic blood pressure and fasting blood glucose, in menopausal women with metabolic syndrome, were performed, as well as a significant reduction of score of relative cardiovascular ris
Recurrent cerebral infarctions in polyarteritis nodosa with circulating antiphospholipid antibodies and mitral valve disease
No full textA case of recurrent cerebral infarctions in a 42-year-old woman affected by polyarteritis nodosa and antiphospholipid syndrome is reported. Two-dimensional echocardiography revealed grossly thickened mitral valve leaflets, possibly related to the presence of antiphospholipid antibodies. Thus, an embolic source at mitral level is hypothesized
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