210,232 research outputs found
Conférence de M. José R. Maia Neto
No full textMaia Neto José R. Conférence de M. José R. Maia Neto. In: École pratique des hautes études, Section des sciences religieuses. Annuaire. Tome 109, 2000-2001. 2000. pp. 429-431
Beta Regression in R
No full textThe class of beta regression models is commonly used by practitioners to model variables that assume values in the standard unit interval (0, 1). It is based on the assumption that the dependent variable is beta-distributed and that its mean is related to a set of regressors through a linear predictor with unknown coefficients and a link function. The model also includes a precision parameter which may be constant or depend on a (potentially different) set of regressors through a link function as well. This approach naturally incorporates features such as heteroskedasticity or skewness which are commonly observed in data taking values in the standard unit interval, such as rates or proportions. This paper describes the betareg package which provides the class of beta regressions in the R system for statistical computing. The underlying theory is briefly outlined, the implementation discussed and illustrated in various replication exercises.
Santanagryllus Martins-Neto 1991
No full textSantanagryllus Martins-Neto, 1991 Type species. Santanagryllus hesselae Martins-Neto, 1991 by original designation. Remarks. Santanagryllus Martins-Neto differs from Cearagryllus, the closest genus, in having a straight anterior margin of the speculum, twice as long as the posterior margin. Additionally, in Santanagryllus R and CuA are sinuous and distally convergent. Santanagryllus shares with Notocearagryllus a wider area below the speculum, differing however in the shape of the speculum (rather trapezoidal in Santanagryllus, squarerounded in Cearagryllus and Notocearagryllus).Published as part of Martins-Neto, Rafael Gioia & Tassi, Lara Vaz, 2009, The Orthoptera (Ensifera) from the Santana formation (Early Cretaceous, Northeast Brazil): A statistical and paleoecological approach, with description of new taxa, pp. 21-37 in Zootaxa 2080 on page 23, DOI: 10.5281/zenodo.18734
Leituras críticas da obra de João Simões Lopes Neto: Província de São Pedro e Caderno de Sábado
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-graduação em LiteraturaEste trabalho tem como objetivo reunir e recuperar leituras críticas esparsas da obra de João Simões Lopes Neto publicadas na revista Província de São Pedro e no suplemento literário Caderno de Sábado, facilitando a pesquisa de outros estudiosos interessados em sua obra. O trabalho de transcrição foi realizado seguindo as normas padronizadas pela Filologia contemporânea, a fim de determinar os critérios adotados para a transcrição dos textos. Num primeiro momento, apresenta-se a apreciação da obra simoniana por parte dos críticos e, num segundo momento, são apresentados os vinte e oito textos selecionados para a transcrição
Cearagrylloides microcephalus Martins-Neto, n. comb.
No full textCearagrylloides microcephalus Martins-Neto, n. comb. (Figs. 2 B, E, G) 1. Cearagryllus microcephalus Martins-Neto, 1991. Specimens included. GP/ 1 T- 1680 (holotype), RGMN- 203, CV- 1699, and RGMN- 40 (510) New supplementary material. RGMN- 508. Emended diagnosis. Females with robust body, varying from 24 to 26 mm length; fore wing length varying from 24 to 28 mm; ovipositor length around 38 mm. Ovipositor 1.6 times longer than the body and/or the fore wing length. Head notably small, laterally elongated. ScP straight, not thickened; R parallel to ScP. MP unbranched; around six MP 2 secondary branches. r-m indistinct. Discussion. The specimen CV- 1699, with incompletely preserved ovipositor, was initially interpreted as belonging to the species Cearagryllus perforatorius (Martins-Neto, 1991), based just on the body and wing length. However, after re-examination of the venation of this specimen, it is now possible to verify that it belongs to Cearagrylloides microcephalus. In addition to the original characters assigned to the species (smaller body and head, longer ovipositor), the fore wing provided other important characters. In C. perforatorius ScP is sigmoid, distally divergent and basally thickened, in contrast to C. microcephalus, which exhibits a straight ScP, not thickened. Additionally, MA has typically three anterior secondary branches, not present in C. microcephalus. Another minor difference is a smaller number of MP secondary branches.Published as part of Martins-Neto, Rafael Gioia & Tassi, Lara Vaz, 2009, The Orthoptera (Ensifera) from the Santana formation (Early Cretaceous, Northeast Brazil): A statistical and paleoecological approach, with description of new taxa, pp. 21-37 in Zootaxa 2080 on page 28, DOI: 10.5281/zenodo.18734
Bahiaxenos Bravo, Pohl, Silva-Neto & Beutel 2009
No full textBahiaxenos Bravo, Pohl, Silva-Neto & Beutel, 2009 relictus Bravo, Pohl, Silva-Neto & Beutel, 2009: 617, Figs 2 –5 Holotype: ♂, BRAZIL, Bahia: Pilão Arcado, (“Brejo Zacarias, 10°07’248’’S / 42°53’589’’W”), 04.x.2006, Vieira, R. leg., MZFS # 43275 in alcohol 70%.Published as part of Ferreira, André Da Silva, Araújo, Maíra Xavier, Vilarinho, Naiara Thaís, Silva-Neto, Alberto Moreira Da & Bravo, Freddy, 2020, Catalogue of type specimens of Insecta (Arthropoda: Hexapoda) deposited in the entomological collection of the Museum of Zoology of Universidade Estadual de Feira de Santana, Brazil, pp. 501-546 in Zootaxa 4728 (4) on page 540, DOI: 10.11646/zootaxa.4728.4.10, http://zenodo.org/record/362654
Falsas anomalías de la función valor actual neto
No full textLas anomalías que surgen en el cálculo y la interpretación del Valor Actual Neto (VAN) y la Tasa Interna de Rendimiento son fácilmente superables, teniendo en cuenta las propiedades reales del VAN y redefiniendo adecuadamente lo que es una inversión y un crédit
Caracterização da matéria orgânica de solos da região amazônica empregando a espectroscopia de fluorescência induzida por laser e a espectroscopia de emissão óptica com plasma induzido por laser.
No full textEntrada padronizada de BOAS, P. R. V.; MARTIN NETO, L
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
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