1,721,248 research outputs found
Il rialzo del seno mascellare a scopo implantare
No full textGli obiettivi di questo lavoro sono quelli di presentare dati aggiornati su indicazioni, controindicazioni, possibilità e limiti della riabilitazione implantoprotesica dei settori
latero-posteriori del mascellare superiore sottoposto a elevazione del pavimento del seno mascellare.
Verranno descritti in dettaglio: a) le modalità per una corretta pianificazione degli interventi in base alla situazione clinica iniziale, seguendo una classificazione clinica delle atrofie mascellari e le possibilità terapeutiche correlate; b) i principi generali delle
tecniche di elevazione del pavimento del seno mascellare, associate o meno ad altri
interventi di ricostruzione ossea, per ristabilire una corretta anatomia. Infine, verranno discussi i dati presenti in letteratura internazionale e quelli ricavati dall’esperienza più che decennale degli Autori
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
Immediate loading of dental implants placed in severely resorbed edentulous mandibles reconstructed with autogenous calvarial grafts
No full textObjective: The aim of this prospective study was to present the clinical outcome of
immediately loaded dental implants placed in edentulous, severely atrophied mandibles,
after reconstruction with autogenous multilayered calvarial grafts.
Materials and methods: Six patients, two males and four females, aged 40–67 years (mean:
56 years) presenting with severely atrophied edentulous mandibles (Cawood and Howell
class VI), were reconstructed with multilayered calvarial bone grafts placed in the
intraforaminal area of the mandible. Five to 8 months afterwards, 23 dental implants were
placed in the reconstructed areas (three to four implants per patient) and immediately
loaded with implant-supported overdentures. Patients were followed with clinical and
radiographic controls annually.
Results: Recovery after the reconstruction was uneventful in all patients. All 23 implants
were osseointegrated 1–3 years after the start of immediate loading. The survival and
success rates of implants were 100% and 95.7%, respectively.
Conclusion: Results from this study showed that immediate loading of dental implants
placed in severely atrophied edentulous mandibles reconstructed with calvarial bone grafts
is a predictable procedure, which permits a successful dental rehabilitation with a
shortening of treatment times.
In the last decade, immediate loading of
dental implants has confirmed to be a
reliable means for the rehabilitation of
partially or totally edentulous patients (Balshi
& Wolfinger 1997; Chiapasco et al.
1997, 2001; Schnitman 1997; Tarnow
et al. 1997; Gatti et al. 2000; Jaffin et al.
2000; Malo` et al. 2000; Chiapasco 2004).
The shortening of treatment times without
jeopardizing the long-term survival of
dental implant
Carico immediato di impianti inseriti nella mandibola ricostruita con innesto di calvaria
No full text- …
