Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Luiz Cláudio Almeida Barbosa"'
Autor:
Elizabeth Aparecida Josefi Silva, Vanessa Paula da Silva, Cassia Cristina Fernandes Alves, José Milton Alves, Edson Luiz Souchie, Luiz Cláudio Almeida Barbosa
Publikováno v:
Semina: Ciências Agrárias, Vol 39, Iss 2, Pp 865-874 (2018)
Globally, the fungus Sclerotinia sclerotiorum is considered as one of the most important phytopathogens, since it affects the production of several economically important crops. Further, it is difficult to control, thus increasing the use of pesticid
Externí odkaz:
https://doaj.org/article/c6fd85f65de946f5b57e1c962a241aef
Autor:
Elizabeth Aparecida Josefi da Silva, Vanessa Paula da Silva, Cassia Cristina Fernandes Alves, José Milton Alves, Edson Luiz Souchie, Luiz Cláudio Almeida Barbosa
Publikováno v:
Semina: Ciências Agrárias, Vol 37, Iss 5, Pp 3059-3068 (2016)
Psidium guajava L. is native to Central and South America. It is widely distributed and well adapted to Brazil, a producer of essential oils rich in terpenes. The objective of this study was to evaluate the effects of natural and artificial drying on
Externí odkaz:
https://doaj.org/article/51807aea90854efca0080b6fa68d4dc2
Autor:
Elizabeth Aparecida Josefi Silva, Vanessa Paula da Silva, Cassia Cristina Fernandes Alves, José Milton Alves, Edson Luiz Souchie, Luiz Cláudio Almeida Barbosa
Publikováno v:
Semina: Ciências Agrárias, Vol 39, Iss 2 (2018)
O fungo Sclerotinia sclerotiorum é considerado um dos fitopatógenos mais importantes no mundo, pois afeta a produção de diversas culturas de importância econômica, e possui difícil controle, aumentando, assim, a necessidade de crescentes aplic
Externí odkaz:
https://doaj.org/article/54eb734cd7924cfe89d3d3ca8befcb1e
Autor:
Cláudia Pessoa, Manoel Odorico Moraes, Letícia Veras Costa-Lotufo, José Roberto Oliveira Ferreira, Vânia Maria Moreira Valente, Róbson Ricardo Teixeira, Célia Regina Alvares Maltha, Ulisses Alves Pereira, Luiz Cláudio Almeida Barbosa
Publikováno v:
Molecules, Vol 15, Iss 8, Pp 5629-5643 (2010)
A series of twelve 2,5-bis(alkylamino)-1,4-benzoquinones were prepared in yields ranging from 9–58% via the reaction between p-benzoquinone and various amines. The structures of the synthesized compounds were confirmed by IR, 1H- and 13C-NMR and MS
Externí odkaz:
https://doaj.org/article/8695dd71c3fb4c128ab80d851a9de1aa
Autor:
Luiz Cláudio Almeida Barbosa, Róbson Ricardo Teixeira, Patrícia Fontes Pinheiro, Célia Regina Álvares Maltha, Antônio Jacinto Demuner
Publikováno v:
Química Nova, Vol 33, Iss 5, Pp 1163-1174 (2010)
α,β-unsaturated lactones possessing an alkylidene appendage group at the γ-position, are frequently termed γ-alkylidenebutenolides. Over the past decades, an increasing number of these compounds have been isolated from various natural sources. Me
Externí odkaz:
https://doaj.org/article/29319f0d543b409f90a5b5602ce76494
Autor:
Amber L. Thompson, Timothy J. Donohoe, Luiz Cláudio Almeida Barbosa, Akshat Rathi, Vania Maria Moreira Valente, Antonio Jacinto Demuner
Publikováno v:
Molecules, Vol 14, Iss 12, Pp 4973-4986 (2009)
Commercial dehydroacetic acid was converted into 4-hydroxy-6-methylpyridin-2(1H)-one (3), which was then condensed with several aliphatic aldehydes to produce seven new title compounds in variable yields (35–92%). Reaction of 3 with α,β-unsaturat
Externí odkaz:
https://doaj.org/article/ee68d87d4e714e7c933274890da614f6
Publikováno v:
Química Nova, Vol 31, Iss 6, Pp 1543-1552 (2008)
In this paper historical aspects of analytical pyrolysis, the equipment used, the fundamentals and the mechanisms of pyrolysis of different polymeric materials are discussed. The latest work on analytical pyrolysis applied to various types of synthet
Externí odkaz:
https://doaj.org/article/1860cfaaf2524244956dec38f40a9861
Autor:
Luiz Cláudio Almeida Barbosa, Antônio Jacinto Demuner, Alan Dumont Clemente, Vanderlúcia Fonseca de Paula, Faiz M. D. Ismail
Publikováno v:
Química Nova, Vol 30, Iss 8, Pp 1959-1965 (2007)
Essential oils from leaves, ripe and unripe fruits of Schinus terebinthifolius growing in Brazil were investigated. Oil content from either ripe or unripe fruits was similar (4.65% and 3.98%, respectively). Sesquiterpenes (from 78.0% to 90.4%) domina
Externí odkaz:
https://doaj.org/article/93c847c57883423cbb793f7f21cb56d7
Autor:
Franceli da Silva, Ricardo Henrique Silva Santos, Nélio José de Andrade, Luiz Cláudio Almeida Barbosa, Vicente Wagner Dias Casali, Renato Ribeiro de Lima, Ricardo Vaz de Melo Passarinho
Publikováno v:
Pesquisa Agropecuária Brasileira, Vol 40, Iss 4, Pp 323-328 (2005)
Fresh basil (Ocimum basilicum L.) is used in food, phytotherapic industry, and in traditional therapeutic, due to its essential oil content and composition. Nevertheless basil can not be kept for long periods after harvest and its quality can be redu
Externí odkaz:
https://doaj.org/article/310ddf8ea81d46848fcc4f1e1bfff343
Autor:
Paula Tatiana Lopes Seixas, Antonio Jacinto Demuner, Henrique Guilhon De Castro, Luiz Cláudio Almeida Barbosa
Publikováno v:
REVISTA FOCO. 16:e1224
Artemisia absinthium, also known as wormwood, is used in traditional medicine as anti-parasitic and analgesic. The aim of the present study was to evaluate the effect of four doses of mineral fertilization in two harvest times on the content and comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12c2405f90dc5789e5e6a8d407ab6fe7
https://doi.org/10.54751/revistafoco.v16n3-008
https://doi.org/10.54751/revistafoco.v16n3-008