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Search Results: 1 - 10 of 182989 matches for " Amarante Junior Ozelito Possid?nio de "
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Estudo da adsor??o/dessor??o de 2,4-D em solos usando técnica cromatográfica
Amarante Junior, Ozelito Possidnio de;Brito, Natilene Mesquita;Santos, Teresa Cristina Rodrigues dos;Ribeiro, Maria Lúcia;
Eclética Química , 2002, DOI: 10.1590/S0100-46702002000200021
Abstract: this research studied the adsorption and the desorption of the herbicide 2,4-dichlorofenoxyacetic acid (2,4-d) in soil from urbano santos - ma. the region has eucalyptus crops, and they will be used for attainment of cellulose. herbicides, namely 2,4-d, are used for clean the fields before the plantation and in the firsts 12 months. the freundlich isotherm was used as model for this study, and the 2,4-d concentration was determined through high performance liquid chromatography (hplc). this determination was studied by recoveries assays. the results suggest the 2,4-d to show bigger adsorption at organic mater of studied soil that others kinds of the soils. this can results in lower tendency of leaching and degradation, but the herbicide shows high potential of leaching when compared with others pesticides.
Glifosato: propriedades, toxicidade, usos e legisla??o
Amarante Junior, Ozelito Possidnio de;Santos, Teresa Cristina Rodrigues dos;Brito, Natilene Mesquita;Ribeiro, Maria Lúcia;
Química Nova , 2002, DOI: 10.1590/S0100-40422002000400014
Abstract: this paper supplies a compact revision on the herbicide glyphosate physic-chemistry characteristic mains, including toxicity and valid brazilian legislation for its use.
Glifosato: propriedades, toxicidade, usos e legisla o
Amarante Junior Ozelito Possidnio de,Santos Teresa Cristina Rodrigues dos,Brito Natilene Mesquita,Ribeiro Maria Lúcia
Química Nova , 2002,
Abstract: This paper supplies a compact revision on the herbicide glyphosate physic-chemistry characteristic mains, including toxicity and valid Brazilian legislation for its use.
Breve revis?o de métodos de determina??o de resíduos do herbicida ácido 2,4-diclorofenoxiacético (2,4-D)
Amarante Júnior, Ozelito Possidnio de;Santos, Teresa Cristina Rodrigues dos;Nunes, Gilvanda Silva;Ribeiro, Maria Lúcia;
Química Nova , 2003, DOI: 10.1590/S0100-40422003000200015
Abstract: this paper supplies a revision about the main techniques of extraction, clean-up and pre-concentration of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-d) in water and soil samples, as well as chromatographic methods and immune assays for its identification and quantification.
Métodos de extra??o e determina??o do herbicida glifosato: breve revis?o
Amarante Júnior, Ozelito Possidnio de;Santos, Teresa Cristina Rodrigues dos;Brito, Natilene Mesquita;Ribeiro, Maria Lúcia;
Química Nova , 2002, DOI: 10.1590/S0100-40422002000300015
Abstract: this paper supplies a compact revision about the main extraction, clean-up and pre-concentration methods of the herbicide glyphosate for water and soil samples, as well as methods for its determination and quantification.
Métodos de extra o e determina o do herbicida glifosato: breve revis o
Amarante Júnior Ozelito Possidnio de,Santos Teresa Cristina Rodrigues dos,Brito Natilene Mesquita,Ribeiro Maria Lúcia
Química Nova , 2002,
Abstract: This paper supplies a compact revision about the main extraction, clean-up and pre-concentration methods of the herbicide glyphosate for water and soil samples, as well as methods for its determination and quantification.
Breve revis o de métodos de determina o de resíduos do herbicida ácido 2,4-diclorofenoxiacético (2,4-D)
Amarante Júnior Ozelito Possidnio de,Santos Teresa Cristina Rodrigues dos,Nunes Gilvanda Silva,Ribeiro Maria Lúcia
Química Nova , 2003,
Abstract: This paper supplies a revision about the main techniques of extraction, clean-up and pre-concentration of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) in water and soil samples, as well as chromatographic methods and immune assays for its identification and quantification.
Photodegradation of soluble and emulsive cutting fluids using TiO2 as catalyst
Araújo, Adriana B.;Amarante Junior, Ozelito P.;Vieira, Eny M.;Valente, José P. S.;Padilha, Pedro M.;Florentino, Ariovaldo O.;
Journal of the Brazilian Chemical Society , 2006, DOI: 10.1590/S0103-50532006000400015
Abstract: this paper describes results of the photo-degradation of three types of soluble and emulsive cutting fluids in an aqueous medium, using tio2 as catalyst in suspension and uv radiation. the tio2 proved to be an effective catalyst for the degradation of the cutting fluids investigated. the degradation rate depends on ph and nature of the fluids. the best performance of catalyst was observed at ph 8.0 for all the fluids when most of 70% of the organic load was decomposed.
Registro de novos hospedeiros de Megaplatypus mutatus (Chapuis) (Coleoptera, Platypodidae) no Estado de S o Paulo, Brasil (Nota Científica). A register of new hosts of Megaplatypus mutatus (Chapuis) (Coleoptera, Platypodidae) in the State of S o Paulo (Scientific Note).
Marcel Mamede de CARVALHO FILHO,édson Possidnio TEIXEIRA,Thiago Borges CONFORTI
Revista do Instituto Florestal , 2008,
Abstract: Megaplatypus mutatus (Chapuis) éespécie nativa da América do Sul e é pragaprimária de espécies arbóreas exóticas e nativas.No município de Campinas, Estado de S o Paulo,durante pesquisa realizada nos anos de 2004,2005 e 2006, visando descobrir a causa damortalidade de árvores que comp em o dossel defragmentos de Floresta Estacional Semidecidual noBosque dos Jequitibás e na Mata Santa Genebra,foi coletado material associado a várias espéciesarbóreas ainda n o registradas na literatura.Schizolobium parahyba (Vel l . ) S. F. Bl ake,Enterolobium contortisiliquum (Vell.) Morong,Livistona chinensis (Jacq.) R. Br., Caesalpiniapluviosa (Benth.) DC., Pittosporum undulatumVent., Delonix regia (Bojer ex Hook) Raf.,Mangifera indica L., Croton floribundus Spreng.,Croton piptocalyx Müll. Arg., Cariniana legalis(Mart.) Kuntze, Luetzelburgia guaissaraToledo, Piptadenia gonoacantha (Mart.) J. F.Macbr., Ficus benjamina L., Platypodium elegansVogel, Cariniana estrellensis (Raddi) Kuntze,Machaerium stipitatum (DC.) Vogel, Centrolobiumtomentosum Guillemin ex Benth., Pachira aquaticaAubl., Inga cf. vera Willd. ssp. affinis (DC.) T.D.Penn., s o registradas pela primeira vez comohospedeiros de M. mutatus no stado de S o Paulo,Brasil. Plantas hospedeiras referidas em bibliografiatambém s o relacionadas.Megaplatypus mutatus (Chapuis) isnative from South America and it is a primary pestof native and exotic trees. In the county ofCampinas, state of S o Paulo, during researchcarried out in the years of 2004, 2005 and 2006aiming at to discover the cause of the mortality oftrees that compose the canopy of fragments ofSemideciduous Forest in the Bosque dos Jequitibásand Mata Santa Genebra, was collected materialassociated with some species still not recorded inthe literature. Schizolobium parahyba (Vel l . ) S.F. Bl ake, Enterolobium contortisiliquum (Vell.)Morong, Livistona chinensis (Jacq.) R. Br.,Caesalpinia pluviosa (Benth.) DC., Pittosporumundulatum Vent., Delonix regia (Bojer ex Hook)Raf., Mangifera indica L., Croton floribundusSpreng., Croton piptocalyx Müll. Arg., Carinianalegalis (Mart.) Kuntze, Luetzelburgia guaissaraToledo, Piptadenia gonoacantha (Mart.) J. F.Macbr., Ficus benjamina L., Platypodium elegansVogel, Cariniana estrellensis (Raddi ) Kuntze,Machaerium stipitatum (DC.) Vogel,Centrolobium tomentosum Guillemin ex Benth.,Pachira aquatica Aubl., Inga cf. vera Willd. ssp.affinis (DC.) T.D. Penn., are recorded for the firsttime in the state of S o Paulo as hosts of M.mutatus. It is related host plants referred inbibliography also.
Ecoturismo e conserva o ambiental: contextualiza es gerais e reflex es sobre a prática
Gabriela Barros Rodrigues,Ozelito Possidonio Amarante Jr.
Revista Brasileira de Ecoturismo , 2009,
Abstract: O presente trabalho apresenta uma breve análise bibliográfica que busca em alguns textos científicos alicerces para discutir o tema e, sobretudo, ressalta observa es relacionadas a vivências de campo que relacionem o Ecoturismo e a conserva o dos recursos naturais, sob a perspectiva do formato em que as práticas est o sendo desenvolvidas. Neste estudo, s o apresentados algumas vivências e exemplos relacionados a localidades que têm a atividade do turismo em fase de implanta o ou já consolidada. O texto ainda fomenta a discuss o a respeito do uso do termo Ecoturismo e os equívocos cometidos em sua comercializa o e como tal realidade vêm trazendo impactos negativos aos ambientes onde a atividade turística pode se apresentar como uma alternativa de desenvolvimento local.
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