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Search Results: 1 - 10 of 181868 matches for " Ozelito Possid?nio de;Brito "
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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.
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.
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.
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, 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.
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.
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.
The descendents of Angolans and Luso-Angolans in the Lisbon Metropolitan area: aspects of their integration.
Dora Possidónio
Finisterra - Revista Portuguesa de Geografia , 2004,
Abstract: The focus of this paper is on the integration of immigrants andethnic minorities, with special emphasis being placed on the descendants of Angolans and Luso-Angolans that live in the Lisbon Metropolitan Area. Throughout the paper, we seek to identify the factors that influence the integration of the descendants of immigrants and to assess the degree of success of these individuals in their process of integration in the Portuguese society. Its first section is a brief theoretical discussion of the issue of the integration of immigrants and ethnic minorities. In the rest of the paper, an assessment is made of the degree of success of these individuals in their process of integration, by way of indicators such as their area of residence, school performance, professional status and the “identity/culture of opposition” binomial. Individual exceptions notwithstanding, our findings corroborate the existence of severe, widespread difficulties in the integration process of these individuals.
Propriedades psicométricas da vers?o portuguesa do Intrinsic Motivation Inventory (IMIp) em contextos de actividade física e desportiva
Fonseca,António Manuel; Brito,António de Paula;
Análise Psicológica , 2001,
Abstract: the purpose of this research was to analyze the psychometric properties of the portuguese version of the intrinsic motivation inventory (mcauley et al., 1989) in sport and exercise contexts. in study 1 (n=738; 16.00±3.66 years) exploratory factor analysis (efa) identified a four-factor structure similar to the original version, and cronbach alphas of each one of the different subscales and for the whole instrument showed its reliability. in study 2 (n=1780; 15.80±3.85 years) confirmatory factor analysis (cfa) was used to examine four different measurement models of imip: i) 18 itens, one-factor; ii) 18 itens, four-factor; iii) 17 itens, one factor; and iv) 17 itens, four-factor. cfa results showed the superiority of the models with 17 items against the models with 18 itens, and the superiority of the four-factor models face to the one-factor models. however, the fit idexes of the examined models suggested that imip can be used with confidence as much as a global measure for the evaluation of the individuals' intrinsic motivation for sport and exercise activities as to measure individually each one of it's four facets. finally, and despite what was previously referred, a global analysis to the overall results found in the two reported studies seems to suggest that it will be possible to still improve the psychometric properties of the imip.
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