183,202 research outputs found
Estrategias felinas: discurso poetico X midia na poesia brasileira contemporanea : Armando Freitas Filho e Sebastião Uchoa Leite
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e ExpressãoA presente dissertação analisa na produção textual de Armando Freitas Filho e Sebastião Uchoa Leite o conflito entre a mídia, como veiculadora de discursos homogeneizantes na sociedade, e o discurso poético como voz alternativa, marcada pela singularidade e pelo exercício crítico em relação às noções de sujeito, subjetividade, verdade, discurso. Para isso, foram estudadas principalmente obras escritas nos anos 1980
Romanismo e universalismo in Teixeira de Freitas: l’esempio della condizione giuridica dello straniero
No full textLa riflessione del giurista brasiliano Augusto Teixeira de Freitas sul tema della condizione giuridica dello straniero è un concreto elemento di resistenza del diritto romano all’interno del diritto latinoamericano. Il dato, che appare già chiaramente delineato nella Introducção della Consolidação das Leis Civis, viene ribadito e precisato dallo stesso giurista nell’Esboço, sino a essere recepito successivamente nel Codice Civile brasiliano del 1916. Alla base della riflessione di Teixeira de Freitas vi è una evidente e consapevole conoscenza delle fonti romane.The reflection of the Brazilian jurist Augusto Teixeira de Freitas on the topic of the
legal status of foreigners is a concrete example of resistance of Roman law in the Latin American law. This idea, which already appears clearly outlined in the Introducção of Consolidação das Leis Civis, is reiterated and specified by the jurist himself in the Esboço, until it is subsequently transposed into the Brazilian Civil Code of 1916. At the basis of Teixeira de Freitas’ reflection there is a clear and conscious knowledge of Roman sources
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
GF-GMD/ccpp-physics: GMD-paper branch
No full textThe GF code for the part 3.1 "The trimodal characteristics revealed by single-column simulations" of "The Grell–Freitas (GF) convection parameterization: recent developments, extensions, and applications" by Saulo R. Freitas, Georg A. Grell, and Haiqin Li. Geosci. Model Dev., 14, 1–18, 2021 https://doi.org/10.5194/gmd-14-1-202
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Acoustic emission approach for identifying fracture mechanisms in composite bonded Joints: A study on varying Substrate’s stacking sequence
No full textThis study uses the acoustic emission structural health monitoring method to identify fracture mechanisms in
composite bonded joints when varying the substrate stacking sequence. Quasi-static mode I loading tests were
performed on secondary adhesively bonded multidirectional composite substrates (0, 90, 45, 45, 60 and 60◦
fibre orientations). An unsupervised artificial neural network combined with the visual fracture evaluation of the
specimens and the Morlet continuous wavelet transform was used to cluster and give the acoustic emission
signals a physical meaning. Different fracture mechanisms could be identified within the adhesive layer (i.e.,
cohesive failure) and in the composite substrates, including non-visible damage mechanisms (matrix microcracking,
fibre/matrix debonding, fibre pull-out and fibre breakage). Using the Morlet continuous wavelet
transform, it was possible to recognise that the highest peak frequency does not always represent the most
relevant signature of the fracture mechanism. Moreover, multiple peak frequencies can be associated with
multiple fracture mechanisms, such as the fibre pull-out that occurs in the combination of matrix cracking and
fibre breakage. Furthermore, no differences were observed in mode I loading conditions between the acoustic
emission signatures from the cohesive failure in the adhesive layer and the matrix cracking within the composite
substrate. The findings of this study present a great opportunity to gain more insight into the fracture behaviour
of polymer materials and fibre-reinforced polymer materials and to improve the quality of adhesively bonded
joints
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