1,721,083 research outputs found
Influência de materiais restauradores liberadores de flúor na evolução de lesões de cárie em esmalte de molares decíduos: estudo in vitro
Full text linkTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Curso de Pós-Graduação em Odontologia.O objetivo deste estudo foi avaliar a influência de materiais restauradores liberadores de flúor na evolução de lesões de cárie em esmalte, quando aplicados em molares decíduos e submetidos a uma situação de alto desafio cariogênico. Os resultados sugerem que os cimentos de ionômero de vidro oferecem maior resistência à lesão de cárie secundária que a resina composta modificada por poliácidos e o amálgama
La protezione integrata dalle malattie fungine nella peschicoltura dell'Italia meridionale
No full textDETERMINATION OF THE ELECTRONIC SYMMETRY OF DIATOMIC MOLECULES BY ELECTRIC DEFLECTION: LiO(g) AND LaO(g)
No full text L. Wharton, R. A. Berg and W. Klemperer, J. Chem. Phys., 2023, (1963). A. B\""{u}chler, J. L. Stauffer, W. Klemperer and L. Wharton, J. Chem. Phys. 9, 2299 (1963). L. Akerlind, Ark. Fysik 22, 65 (1962).Author Institution: Department of Chemistry, Harvard University; Department of Chemistry, Arthur D. Little, IncorporatedMolecular-beam electric deflection and electric resonance experiments have been performed on LiO(g). A deflection (i.e. ) behavior which differs quantitatively from that of LiF(g) has been correlated with the ground state of LiO and with the observation of a first-order Stark effect in its electric resonance spectrum. Thus in favorable cases, the deflection (focusing) behavior of diatomic molecules can be used to distinguish between and non- ground states because of the small (second-order) Stark effect of the former and the large (first- or second-order) Stark effect of the latter. A focusing theory appropriate to these experiments has been developed. Experiments have been carried out to indicate the symmetry of the ground state of LaO(g). The spectroscopic for LaO will be reviewed in the light of our results. A theory of the chemical bond in diatomic molecules of the transition metals will be discussed
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
- …
