1,720,977 research outputs found
SILS 2009
No full textScopi
La diciassettesima edizione del convegno della SILS è rivolta ai ricercatori interessati all'utilizzo della luce di sincrotrone e si propone di:
aggiornare la comunità scientifica italiana sullo stato dell'arte della ricerca con radiazione di sincrotrone e sugli ultimi risultati scientifici di rilievo
favorire l'incontro di ricercatori appartenenti a diverse aree scientifiche
diffondere informazioni sulle possibilità di ricerca e sui criteri di accesso per gli utilizzatori alle facilities
Il programma scientifico, che si articolerà in due giornate e mezzo, prevede relazioni su invito, comunicazioni e sessione poster sulle ricerche di particolare rilievo nei diversi settori di applicazione della radiazione di sincrotrone.
Organizzazione del Convegno
"chair-person"
E. Paris, Dipartimento di Scienze della Terra,
Università di Camerino
e-mail: [email protected]
"co-chair"
A. Di Cicco, Dipartimento di Fisica,
Università di Camerino
e-mail: [email protected]
S. Turchini, ISM - CNR, Roma
e-mail: [email protected]
Invited Speakers
P. Glatzel
ESRF, Grenoble
S. Lupi
Università di Roma La Sapienza
M. Milanesio
Università del Piemonte Orientale "Amedeo Avogadro"
A. Morgante
TASC-INFM National Laboratory
D.D. Sarma
SSCU, Indian Istitute of Science
Comitato Scientifico
G. Artioli, Università di Milano
C.M. Bertoni, Università di Modena
F. Boscherini, Università di Bologna
V. Lombardi, Università di Firenze
S. Mobilio, Università di RomaTre
G. Paolucci, Università di Messina
G. Rossi, TASC-INFM CNR, Università di Modena
G. Ruocco, Università di Roma "Sapienza"
F. Sette, ESRF Grenoble
G. Stefani, Università di RomaTre
D. Viterbo, Università di Padova
Giunta SILS
C. Mariani, Università di Roma "Sapienza" - Presidente
P. Calvani, Università di Roma "Sapienza"
F. Comin, ESRF Grenoble
G. Cruciani, Università di Ferrara
C. Lamberti, Università di Torino
P. Spadon, Università di Padova
S. Turchini, ISM - CNR Roma
Comitato Organizzatore
E. Paris, Università di Camerino
G. Giuli, Università di Camerino
C. Lamberti, Università di Torino
R. Marassi, Università di Camerino
S. Stizza, Università di Camerino
S. Turchini, ISM - CNR Roma
Segreteria del Convegno
Maria Rita Cicconi, Federico Maria de Grisogono
SILS 2004
No full textOrganizzazione del Convegno
Eleonora Paris, Dipartimento di Scienze della Terra, Università di Camerino
Tel. 0737-402607; Fax 0737-402644
Segreteria del Convegno
Gabriele Giuli, Dipartimento di Scienze della Terra, Università di Camerino
Tel. 0737-402610; Fax 0737-402644;
e-mail: [email protected]
Invited Speakers
D. I. Svergun
``Synchrotron small-angle X-ray scattering studies of biological macromolecules in solution''
M. Kiskinova
``Spectromicroscopy at ELETTRA: recent achievements and new projects''
A. Zecchina
``Zeolitic and silica supported supported catalysts studied by synchrotron radiation''
F. Farges
``XAS of crystalline and amorphous silicatic systems''
R. Rueffer
``Application of nuclear resonance scattering to the study of nanoscale materials''
Comitato Scientifico
G. Artioli, Università di Milano
C. M. Bertoni, Università di Modena
M. Bolognesi, Università di Genova
A. Franciosi, INFM-TASC, Trieste
B. Martorana, Università di Palermo
S. Mobilio, Università Roma Tre
C. R. Natoli, LNF, Frascati
G. Paolucci, ELETTRA
F. Parmigiani, Università di Brescia
M. N. Piancastelli, Università di Roma "Tor Vergata"
P. Perfetti, ISM-CNR, Roma
S. Quartieri, Università di Messina
F. Sette, ESRF
G. Stefani, Università di Roma Tre
G. Zanotti, Università di Padova
Comitato Organizzatore
A. Di Cicco, Università di Camerino
R. Gunnella, Università di Camerino
R. Marassi, Università di Camerino
E. Paris, Università di Camerino
S. Stizza, Università di Camerino
F. Boscherini, Università Bologna
R. Felici, INFM-OGG c/o ESRF, Grenoble
A. Pavese, Università di Milano
I. Pettiti, Università di Roma "La Sapienza"
G. Stefani, Università di Roma Tre
N. Zema, ISM-CN
X-ray absorption near edge structures of intermediate valence TmSe single crystals
No full textL3 and L1 X-ray absorption spectra of single crystals of TmSe and Tm metal were measured at the synchrotron radiation facility PULS using the Frascati storage ring Adone. Valence fluctuations in TmSe appear from the analysis of the X-ray absorption near edge structures (XANES). The XANES of TmSe shows two well resolved 'giant resonances' at the L3 threshold due to 2p to 5, epsilon d* transitions localised on the Tm3+ and Tm2+ ions. The joint analysis of the L1 and L3 edges gives information on the symmetry of the conduction states near the Fermi level. The effects of the core-hole-induced relaxation on the measured intermediate valence are not important in Tm compounds. The values of the intermediate valence of Tm in TmSe can be extracted from XANES in contrast to what seems to be the case for Ce in intermediate valence Ce compounds
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
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