1,721,339 research outputs found
Ensemble de trouvailles de l'époque des Sauromates provenant de la région d'Uralsk
No full textMoškova Marin G. Ensemble de trouvailles de l'époque des Sauromates provenant de la région d'Uralsk. In: Arts asiatiques, tome 37, 1982. pp. 5-13
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
DataLocator
No full textIl DataLocator è un sito costituito da numerosi link a banche dati e ad altri strumenti statistici per la ricerca economica/statistica. In aggiunta alle fonti statistiche sono disponibili riferimenti a software (statistici) open source e ad altri strumenti utili per l'analisi dei dati. Per ciascun link vi è una breve descrizione. I link coprono le seguenti tipologie: (i) banche dati nazionali e internazionali (articolate per tema); (ii) classificazioni statistiche; (iii) software open source per l’analisi statistica; (iv) libri (di statistica) on line; (v) shapefiles. Il DataLocator è consultabile al link seguente: http://www.dse.unibo.it/en/research/research-tools/datalocato
Centrosome competition: a possibility ?
No full textA recent theory on the evolution of sexuality, has hypothesized heritable variation in the functional properties of centrosomes, leading to competition for the organization of the mitotic spindle when different centrosomes enter a common cytoplasm. We present here data on polyethylene glycol-induced polykaryocytes of cultured Chinese hamster fibroblasts indirectly supporting centrosome competition. On the assumption that sib centrosomes are similar and variation increases with cell generations, the frequencies of multipolar mitoses were compared in cultures fused under conditions favoring sib cell fusion or fusion of distantly related cells. Multipolar mitoses were considerably more frequent in the former, when the average difference between pairs of centrosomes was assumed to be too small for one centrosome to "outcompete" the other
Hybridization frequencies of chinese hamster and mouse fibroblasts fused with polyethylene glycol at different cell densities.
No full textWe have determined the effect of parental cell concentration at the time of fusion with polyethylene glycol on the frequency of viable somatic hybrids and of polykaryocytes of different multiplicity, between Chinese hamster (line Wg3) and mouse (line 3TP) fibroblasts. Fusion appeared to be dictated by the random encounter of cells only at low cell concentrations. However, no evidence for species-specific restriction of fusion was obtained at any cell concentration
Cariotipi di ibridi somatici hamster-topo derivati da fusione ad alta o bassa densità cellulare
No full text
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
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