Ricardo Rebelo - Academia.edu (original) (raw)
Papers by Ricardo Rebelo
As a generalization of our previous work [Phys. Rev. D 95 043528 (2017)], in which an analytic mo... more As a generalization of our previous work [Phys. Rev. D 95 043528 (2017)], in which an analytic model for the galaxy bispectrum in redshift space was developed on the basis of the halo approach, we here investigate its higher multipoles that have not been known so far. The redshift-space bispectrum includes the two variables ω and φ for the line-of-sight direction, and the higher multipole bispectra are defined by the coefficients in the expansion of the redshift-space bispectrum using the spherical harmonics. We find 6 new nonvanishing components out of 25 total components up to ℓ = 4, in addition to 3 components discussed in the previous work (monopole, quadruple, and hexadecapole of m = 0). The characteristic behaviors of the new nonvanishing multipoles are compared with the results of galaxy mock catalogs that match the halo occupation distribution of the Sloan Digital Sky Survey Baryonic Oscillation Spectroscopic Survey low-redshift sample. We find that the multipoles with m = 0 are also sensitive to redshift-space distortion (RSD) as well as those with m = 0 and thus are key ingredients in the RSD analysis using the galaxy bispectrum. Analytic approximation formulas for these nonzero components are also presented; these are useful for understanding the characteristic behaviors.
1Laboratório de Biotecnologia e Micropropagação Vegetal, Departamento de Ciências Naturais, Unive... more 1Laboratório de Biotecnologia e Micropropagação Vegetal, Departamento de Ciências Naturais, Universidade Regional de Blumenau, CP 1507, 89010-971 Blumenau, SC, Brasil. 2Laboratório de Química Orgânica, Departamento de Química, Universidade Regional de Blumenau, 89010-971 Blumenau, SC, Brasil. 3Laboratório de Botânica, Departamento de Ciências Naturais, Universidade Regional de Blumenau, 89010-971 Blumenau, SC, Brasil. *Corresponding author: rosetep@furb.br Received: 05 April 2008; Returned for revision: 23 May 2008; Accepted: 24 June 2008
South African Journal of Botany
Indian Journal of Microbiology
Applied Sciences
Infections by multiresistant microorganisms have led to a continuous investigation of substances ... more Infections by multiresistant microorganisms have led to a continuous investigation of substances acting as modifiers of this resistance. By following this approach, the chemical composition of the essential oil from Piper caldense leaf and its antimicrobial potential were investigated. The antimicrobial activity was determined by broth microdilution method providing values for minimum inhibitory concentration (MIC), IC50, and minimum fungicidal concentration (MFC). The essential oil was tested as a modulator for several antibiotics, and its effect on the morphology of Candida albicans (CA) strains was also investigated. The chemical characterization revealed an oil composed mainly of sesquiterpenes. Among them are caryophyllene oxide (13.9%), spathulenol (9.1%), δ-cadinene (7.6%) and bicyclogermacrene (6.7%) with the highest concentrations. The essential oil showed very low activity against the strains of CA with the lowest values for IC50 and MFC of 1790 μg/mL and 8192 μg/mL, respe...
Eclética Química Journal
Piper mikanianum from Santa Catarina, southern Brazil, is a well known source of safrole, an aryl... more Piper mikanianum from Santa Catarina, southern Brazil, is a well known source of safrole, an arylpropanoid precursor of several bioactive molecules. This work determined the seasonal and hydrodistillation time influence on the essential oil (EO) yield and composition. Dehydrated leaves were hydrodistilled with and without fractioning during a total period of 240 min. The EO yields varied from 0.66-0.84% with the highest values been observed during spring and summer seasons. The highest concentration of safrole was found in the winter oil (81%). In the fractioning experiments the concentration of safrole varied from 75-80% in F1 (oil distilled during 60 min) and 42-64% in F2 (oil distilled between 60-240 min).
Green Chemistry
An acidic ionic liquid offers an exciting window to directly produce hemicellulose pentoses and t... more An acidic ionic liquid offers an exciting window to directly produce hemicellulose pentoses and to valorise cellulose and lignin.
Acta Crystallogr E Struct Rep, 2006
Revista Brasileira De Biociencias, Jan 18, 2008
The Journal of Essential Oil Research, May 1, 2005
... Auteur(s) / Author(s). DE ABREU Aluizio M. ; COSTA BRIGHENTE Inês Ma ; DE AGUIAR Eliane M. ; ... more ... Auteur(s) / Author(s). DE ABREU Aluizio M. ; COSTA BRIGHENTE Inês Ma ; DE AGUIAR Eliane M. ; REBELO Ricardo A. ; Résumé / Abstract. ... Anglais Editeur / Publisher. Allured, Carol Stream, IL, ETATS-UNIS (1989) (Revue) Mots-clés d'auteur / Author Keywords. Piper cernuum. ...
![Research paper thumbnail of A short new route to the pyrido[2,3,4-kl]acridine subunit common to pyridoacridine alkaloids of marine origin](https://attachments.academia-assets.com/47767772/thumbnails/1.jpg)
](Journal of the Chemical Society, Chemical Communications, 1992
A short new route to the pyrido[2,3,4-kl]acridine ring system has been developed from readily ava... more A short new route to the pyrido[2,3,4-kl]acridine ring system has been developed from readily available quinoline precursors involving two key steps: ( i ) a palladium(0)-catalysed Suzuki cross-coupling reaction of 4-chloroquinolines with arylboronic acids, and ( i i ) an intramolecular nitrene insertion reaction of the nitrenes derived from 4-phenyl-5azidoquinolines.
Tetrahedron, 1992
Tetrahedron Vol. 48, No. 37, pp. 81178126. 1992 00404020192 5.00+.00 Printed in Great Britain 199... more Tetrahedron Vol. 48, No. 37, pp. 81178126. 1992 00404020192 5.00+.00 Printed in Great Britain 1992 Pergamon Press Ltd PalladiumCatalysed CrossCoupling Reactions of Arylboronic Acids with itDeficient Heteroaryl Chlorides1 Naji M. Ali,a Alexander McKillop,*a Michael B. ...
Journal of Essential Oil Research, 2015
![Research paper thumbnail of 4,5,6,8,9-Pentachloropyrimido[1,2- a ][1,8]naphthyridin-10-one](https://attachments.academia-assets.com/47767777/thumbnails/1.jpg)
](Acta Crystallographica Section C Crystal Structure Communications, 2005
Visão Acadêmica, 2011
... O sólido precipitado foi coletado por filtração a vácuo e lavado com água gelada, sendo recri... more ... O sólido precipitado foi coletado por filtração a vácuo e lavado com água gelada, sendo recristalizado pela dissolução em acetona (55 mL) à temperatura ambiente e adição de água destilada (110 mL), sendo colocado em banho de gelo por uma hora. ...
Letters in Drug Design & Discovery, 2010
As a generalization of our previous work [Phys. Rev. D 95 043528 (2017)], in which an analytic mo... more As a generalization of our previous work [Phys. Rev. D 95 043528 (2017)], in which an analytic model for the galaxy bispectrum in redshift space was developed on the basis of the halo approach, we here investigate its higher multipoles that have not been known so far. The redshift-space bispectrum includes the two variables ω and φ for the line-of-sight direction, and the higher multipole bispectra are defined by the coefficients in the expansion of the redshift-space bispectrum using the spherical harmonics. We find 6 new nonvanishing components out of 25 total components up to ℓ = 4, in addition to 3 components discussed in the previous work (monopole, quadruple, and hexadecapole of m = 0). The characteristic behaviors of the new nonvanishing multipoles are compared with the results of galaxy mock catalogs that match the halo occupation distribution of the Sloan Digital Sky Survey Baryonic Oscillation Spectroscopic Survey low-redshift sample. We find that the multipoles with m = 0 are also sensitive to redshift-space distortion (RSD) as well as those with m = 0 and thus are key ingredients in the RSD analysis using the galaxy bispectrum. Analytic approximation formulas for these nonzero components are also presented; these are useful for understanding the characteristic behaviors.
1Laboratório de Biotecnologia e Micropropagação Vegetal, Departamento de Ciências Naturais, Unive... more 1Laboratório de Biotecnologia e Micropropagação Vegetal, Departamento de Ciências Naturais, Universidade Regional de Blumenau, CP 1507, 89010-971 Blumenau, SC, Brasil. 2Laboratório de Química Orgânica, Departamento de Química, Universidade Regional de Blumenau, 89010-971 Blumenau, SC, Brasil. 3Laboratório de Botânica, Departamento de Ciências Naturais, Universidade Regional de Blumenau, 89010-971 Blumenau, SC, Brasil. *Corresponding author: rosetep@furb.br Received: 05 April 2008; Returned for revision: 23 May 2008; Accepted: 24 June 2008
South African Journal of Botany
Indian Journal of Microbiology
Applied Sciences
Infections by multiresistant microorganisms have led to a continuous investigation of substances ... more Infections by multiresistant microorganisms have led to a continuous investigation of substances acting as modifiers of this resistance. By following this approach, the chemical composition of the essential oil from Piper caldense leaf and its antimicrobial potential were investigated. The antimicrobial activity was determined by broth microdilution method providing values for minimum inhibitory concentration (MIC), IC50, and minimum fungicidal concentration (MFC). The essential oil was tested as a modulator for several antibiotics, and its effect on the morphology of Candida albicans (CA) strains was also investigated. The chemical characterization revealed an oil composed mainly of sesquiterpenes. Among them are caryophyllene oxide (13.9%), spathulenol (9.1%), δ-cadinene (7.6%) and bicyclogermacrene (6.7%) with the highest concentrations. The essential oil showed very low activity against the strains of CA with the lowest values for IC50 and MFC of 1790 μg/mL and 8192 μg/mL, respe...
Eclética Química Journal
Piper mikanianum from Santa Catarina, southern Brazil, is a well known source of safrole, an aryl... more Piper mikanianum from Santa Catarina, southern Brazil, is a well known source of safrole, an arylpropanoid precursor of several bioactive molecules. This work determined the seasonal and hydrodistillation time influence on the essential oil (EO) yield and composition. Dehydrated leaves were hydrodistilled with and without fractioning during a total period of 240 min. The EO yields varied from 0.66-0.84% with the highest values been observed during spring and summer seasons. The highest concentration of safrole was found in the winter oil (81%). In the fractioning experiments the concentration of safrole varied from 75-80% in F1 (oil distilled during 60 min) and 42-64% in F2 (oil distilled between 60-240 min).
Green Chemistry
An acidic ionic liquid offers an exciting window to directly produce hemicellulose pentoses and t... more An acidic ionic liquid offers an exciting window to directly produce hemicellulose pentoses and to valorise cellulose and lignin.
Acta Crystallogr E Struct Rep, 2006
Revista Brasileira De Biociencias, Jan 18, 2008
The Journal of Essential Oil Research, May 1, 2005
... Auteur(s) / Author(s). DE ABREU Aluizio M. ; COSTA BRIGHENTE Inês Ma ; DE AGUIAR Eliane M. ; ... more ... Auteur(s) / Author(s). DE ABREU Aluizio M. ; COSTA BRIGHENTE Inês Ma ; DE AGUIAR Eliane M. ; REBELO Ricardo A. ; Résumé / Abstract. ... Anglais Editeur / Publisher. Allured, Carol Stream, IL, ETATS-UNIS (1989) (Revue) Mots-clés d'auteur / Author Keywords. Piper cernuum. ...
Journal of the Chemical Society, Chemical Communications, 1992
A short new route to the pyrido[2,3,4-kl]acridine ring system has been developed from readily ava... more A short new route to the pyrido[2,3,4-kl]acridine ring system has been developed from readily available quinoline precursors involving two key steps: ( i ) a palladium(0)-catalysed Suzuki cross-coupling reaction of 4-chloroquinolines with arylboronic acids, and ( i i ) an intramolecular nitrene insertion reaction of the nitrenes derived from 4-phenyl-5azidoquinolines.
Tetrahedron, 1992
Tetrahedron Vol. 48, No. 37, pp. 81178126. 1992 00404020192 5.00+.00 Printed in Great Britain 199... more Tetrahedron Vol. 48, No. 37, pp. 81178126. 1992 00404020192 5.00+.00 Printed in Great Britain 1992 Pergamon Press Ltd PalladiumCatalysed CrossCoupling Reactions of Arylboronic Acids with itDeficient Heteroaryl Chlorides1 Naji M. Ali,a Alexander McKillop,*a Michael B. ...
Journal of Essential Oil Research, 2015
Acta Crystallographica Section C Crystal Structure Communications, 2005
Visão Acadêmica, 2011
... O sólido precipitado foi coletado por filtração a vácuo e lavado com água gelada, sendo recri... more ... O sólido precipitado foi coletado por filtração a vácuo e lavado com água gelada, sendo recristalizado pela dissolução em acetona (55 mL) à temperatura ambiente e adição de água destilada (110 mL), sendo colocado em banho de gelo por uma hora. ...
Letters in Drug Design & Discovery, 2010