Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Bárbara V, Silva"'
Autor:
Ellen Jessouroun, Marcélio de Moura Oliveira, Bárbara Araújo Nogueira, Ozéias de Lima Leitão, Elizabete Pereira de Figueredo, Maria de Lourdes M Leal, Marilza Batista Corrêa, Bárbara V. Silva
Publikováno v:
Carbohydrate Polymer Technologies and Applications, Vol 7, Iss , Pp 100484- (2024)
The pathogen S. agalactiae, categorized as Lancefield group B streptococci (GBS), is a Gram-positive bacterium, encapsulated, anaerobic facultative bacillus, which occurs in pairs or short chains. It was responsible for more than 319,000 cases of inf
Externí odkaz:
https://doaj.org/article/d032289ed8f2498586a6b215148e5f9d
Autor:
Eduardo Barbieri, Policarpo Ademar Sales Junior, Silvane Maria Fonseca Murta, Bárbara V. Silva V. Silva
Publikováno v:
Revista Virtual de Química. 14:966-983
RESSONÂNCIA MAGNÉTICA NUCLEAR DE SUBSTÂNCIAS ORGANOFLUORADAS: UM DESAFIO NO ENSINO DE ESPECTROSCOPIA
Autor:
Frederico Silva Castelo Branco, Bárbara V. Silva, Gabriel Freitas do Rio, Mábio João Santana, Luiz Henrique Keng Queiroz Júnior, Angelo C. Pinto, Núbia Boechat, Luciano Morais Lião
Publikováno v:
Química Nova, Vol 38, Iss 9, Pp 1237-1246 (2015)
Nuclear magnetic resonance is a technique that is widely used for elucidating and characterizing organic substances. Organofluorine substances have applications in many areas from drugs to liquid crystals, but their NMR spectra are often challenging
Externí odkaz:
https://doaj.org/article/16bf8215784146e0a836a754772da4bd
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 87, Iss 3, Pp 1525-1529 (2015)
This paper describes the preparation of a series of 16 anthranilic acids in yields ranging from 51 to 97%, by treating the isatins with NaOH and H2O2. Independently of the nature of the substituent on the aromatic ring, the reactions were complete in
Externí odkaz:
https://doaj.org/article/d70b15883ecb45bfaac48a1a47bbb862
Publikováno v:
Revista Virtual de Química. 13:713-746
Advancements in digital information and communication technology has promoted transformations in several sectors of our society, including the educational area. For this reason, teaching methodologies need to be increasingly related to technology. In
Autor:
Daniella Rodrigues Fernandes, Nadja Paraense dos Santos, Marcio Panta da Silva, Iromar Coelho da Silva Campos Júnior, Michelle J. C. Rezende, Bárbara V. Silva, Vanderson de Oliveira Araujo
Publikováno v:
Revista Virtual de Química. 13:635-649
Autor:
Vera Lucia Eifler-Lima, Gilsane von Poser, Alessandra da Rocha, Bárbara V. Silva, Solange Cristina Garcia, José Maria Monserrat, Maurício Lanznaster, Gabriela Meirelles, Guilherme Bubols, Damiana R. Vianna
Publikováno v:
International Journal of Molecular Sciences, Vol 13, Iss 6, Pp 7260-7270 (2012)
Coumarins are secondary metabolites that are widely distributed within the plant kingdom, some of which have been extensively studied for their antioxidant properties. The antioxidant activity of coumarins assayed in the present study was measured by
Externí odkaz:
https://doaj.org/article/c41d5fd7e99f47289d286fa1ac6bedeb
Publikováno v:
Química Nova, Vol 33, Iss 10, Pp 2279-2282 (2010)
This article describes the preparation of 5-nitroisatin and of 5-chloroisatin from isonitrosoacetanilide in a single step, using readily available and inexpensive reagents. These reactions require around 90 minutes and may be carried out as an underg
Externí odkaz:
https://doaj.org/article/1107247136d447469faa5f4b0bc3424e
Publikováno v:
Química Nova, Vol 32, Iss 2, Pp 453-462 (2009)
Protein kinases are one of the largest protein families and they are responsible for regulation of a great number of signal transduction pathways in cells, through the phosphorylation of serine, threonine, or tyrosine residues. Deregulation of these
Externí odkaz:
https://doaj.org/article/b91b7812cb9544868866e7477c20c191
Autor:
Lílian Lefol Nani Guarieiro, Ednildo Andrade Torres, Michelle J. C. Rezende, Pedro Afonso de Paula Pereira, Kênia P. Costa, Sabrina T. Martinez, Gisele O. da Rocha, Ingrid Marcela Melo Cardozo, Claudio J. A. Mota, Bárbara V. Silva, Ana Lúcia de Lima, Jailson B. de Andrade
Publikováno v:
Journal of the Brazilian Chemical Society, Volume: 32, Issue: 7, Pages: 1301-1344, Published: 02 JUL 2021
Journal of the Brazilian Chemical Society v.32 n.7 2021
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society v.32 n.7 2021
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
The crescent number of scientific articles published per year shows that research on biodiesel continues to play an important role to support the growing demand for this biofuel. The second edition of Biodiesel: An Overview presents the worldwide res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d9430a669ba6ea6ad832e24fca5d4c8
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532021000701301&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532021000701301&lng=en&tlng=en