1,720,977 research outputs found
An alternative view of delayed stabilization
No full textWorking Paper, Università di Genova, DISEFIN, Genova, Maggio 2008
Gli effetti della sostituzione di "depositi con depositi" nella crisi degli anni Trenta in Italia
No full textLa teoria degli intermediari bancari. Introduzione
No full textPerché esistono le banche? Quali sono le specificità rispetto agli intermediari finanziari
Media fabrication of corruption and the quality of the political class: The case of Italy
No full textSince the global financial crisis of 2008, the level of perceived corruption in Italy has risen markedly, diverging significantly from the perceived corruption of other high-income countries and from the corruption as experienced. We propose that newspapers, in order to maximize their profits, have given directed emphasis to episodes of political corruption, which has contributed to the increase in perceived corruption. The consequence has been loss of parliament's credibility and a deterioration in the quality of the Italian political class
Multifunctional Poly(vinyl ethers) by Controlled Cationic Polymerisation in Fluorinated Solvent
No full textThe living nature of the cationic polymerisation
of butyl vinyl ether (BVE) in the fluorinated solvent
1,1,2-trichloro trifluoroethane was studied, using the initiating
system composed of ethyl aluminium dichloride
(EtAlCl2) as the activator and 1-butoxyethyl acetate
(BEA) as the initiator. BVE homopolymerises in a seemingly
living fashion at T f 08C in the presence of 1,4-
dioxane (DO) as a stabilising Lewis base, although the
fluorinated solvent slows down the polymerisation appreciably.
Less than quantitative reinitiation has been
observed when a second BVE feed was added to the living
macrocation at nearly quantitative monomer conversion.
The functional monomers 2-chloroethyl vinyl ether
(CLEVE), 3-cyano-3-ethoxycarbonylpropyl vinyl ether
(CNEVE) and 1H,1H,2H,2H-perfluorodecyl vinyl ether
(XFDVE) were submitted to polymerisation under the
same conditions that allow to achieve a quasi-living BVE
polymerisation. CLEVE gave a homopolymer with relatively
narrow molecular-weight distribution (MWD),
while efficient polymerisation of XFDVE was only
achieved with BF3 etherate as the initiator. Copolymerisation
of the various functional vinyl ethers with BVE takes
place in a more controlled fashion, yielding products with
narrow MWD index (MÐ
w/MÐ
n = 1.2±1.35), at moderate
functional vinyl ether conversions. Block copolymers
could be synthesised from poly(BVE) living macrocations;
these are probably characterised by a hybrid structure,
consisting of a pure BVE block and a second block
of BVE-functional vinyl ether copolymer
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
- …
