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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
17/05/2011 |
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Data da última atualização: |
05/10/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MILIONI, A. Z.; AVELLAR, J. V. G. de; GOMES, E. G.; MELLO, J. C. C. B. S. |
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Afiliação: |
ARMANDO ZEFERINO MILIONI, ITA; JOSÉ VIRGÍLIO GUEDES DE AVELLAR, ITA; ELIANE GONCALVES GOMES, SGE; JOÃO CARLOS CORREIA BAPTISTA SOARES DE MELLO, UNIVERSIDADE FEDERAL FLUMINENSE. |
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Título: |
An ellipsoidal frontier model: allocating input via parametric DEA. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH. n.209, p. 113-121, 2011. |
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Páginas: |
113-121 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper presents the ellipsoidal frontier model (EFM), a parametric data envelopment analysis (DEA) model for input allocation. EFM addresses the problem of distributing a single total fixed input by assuming the existence of a predefined locus of points that characterizes the DEA frontier. Numeric examples included in the paper show EFM?s capacity to allocate shares of the total fixed input to each DMU so that they will all become efficient. By varying the eccentricities, input distribution can be performed in infinite ways, gaining control over DEA weights assigned to the variables in the model. We also show that EFM assures strong efficiency and behaves coherently within the context of sensitivity analysis, two properties that are not observed in other models found in the technical literature |
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Palavras-Chave: |
DEA; Sistemas de Informação Geográfica. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01392naa a2200193 a 4500
001 1888784
005 2011-10-05
008 2011 bl uuuu u00u1 u #d
100 1 $aMILIONI, A. Z.
245 $aAn ellipsoidal frontier model$ballocating input via parametric DEA.$h[electronic resource]
260 $c2011
300 $a113-121
520 $aThis paper presents the ellipsoidal frontier model (EFM), a parametric data envelopment analysis (DEA) model for input allocation. EFM addresses the problem of distributing a single total fixed input by assuming the existence of a predefined locus of points that characterizes the DEA frontier. Numeric examples included in the paper show EFM?s capacity to allocate shares of the total fixed input to each DMU so that they will all become efficient. By varying the eccentricities, input distribution can be performed in infinite ways, gaining control over DEA weights assigned to the variables in the model. We also show that EFM assures strong efficiency and behaves coherently within the context of sensitivity analysis, two properties that are not observed in other models found in the technical literature
653 $aDEA
653 $aSistemas de Informação Geográfica
700 1 $aAVELLAR, J. V. G. de
700 1 $aGOMES, E. G.
700 1 $aMELLO, J. C. C. B. S.
773 $tEUROPEAN JOURNAL OF OPERATIONAL RESEARCH.$gn.209, p. 113-121, 2011.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
17/09/2014 |
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Data da última atualização: |
29/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
OLIVEIRA FILHO, E. C.; RAMOS, F. R.; MIRANDA, B. C. G.; MUNIZ, D. H. F.; PONTES, R. G. M. S. de. |
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Afiliação: |
EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC; FELIPE R. RAMOS; BARBARA C. G. MIRANDA, UNICEUB; DAPHNE HELOISA DE FREITAS MUNIZ, CPAC; ROSE GOMES MONNERAT SOLON DE PONTES, CENARGEN. |
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Título: |
Evaluating the elimination of Brazilian Entomopathogenic Bacillus by non-target aquatic species: an experimental study. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Bulletin of Environmental Contamination and Toxicology, v. 93, n. 4, p.461-464, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Ecotoxicity tests are key to predict environmental hazards resulting from chemical and biological pesticides in non-target species. In order to assess the effects of microbial pesticides it is important to determine if they cause infection in test organisms. At present the microbial elimination rate or clearance is not included in ecotoxicological regulatory protocols. This study evaluated the elimination of Bacillus thuringiensis and Bacillus sphaericus from fish and snails, after 30 days? exposure to commercial formulations of such entomopathogens. Data obtained showed that in clean water the tendency to eliminate microbial agents from the body of the exposed organisms is gradual over time but after 7 days the fish and snails were free of the two tested Bacillus spp. |
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Palavras-Chave: |
Aquatic persistence; Biopesticida; Persistência aquática. |
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Thesagro: |
Bacillus Thuringiensis; Biomphalaria Glabrata; Pesticida. |
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Thesaurus NAL: |
Bacillus sphaericus; Biopesticides; Danio rerio; Ecotoxicology. |
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Categoria do assunto: |
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S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180018/1/Oliveira-Filho2014-Article-EvaluatingTheEliminationOfBraz.pdf
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Marc: |
LEADER 01681naa a2200289 a 4500
001 1995182
005 2024-04-29
008 2014 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA FILHO, E. C.
245 $aEvaluating the elimination of Brazilian Entomopathogenic Bacillus by non-target aquatic species$ban experimental study.
260 $c2014
520 $aEcotoxicity tests are key to predict environmental hazards resulting from chemical and biological pesticides in non-target species. In order to assess the effects of microbial pesticides it is important to determine if they cause infection in test organisms. At present the microbial elimination rate or clearance is not included in ecotoxicological regulatory protocols. This study evaluated the elimination of Bacillus thuringiensis and Bacillus sphaericus from fish and snails, after 30 days? exposure to commercial formulations of such entomopathogens. Data obtained showed that in clean water the tendency to eliminate microbial agents from the body of the exposed organisms is gradual over time but after 7 days the fish and snails were free of the two tested Bacillus spp.
650 $aBacillus sphaericus
650 $aBiopesticides
650 $aDanio rerio
650 $aEcotoxicology
650 $aBacillus Thuringiensis
650 $aBiomphalaria Glabrata
650 $aPesticida
653 $aAquatic persistence
653 $aBiopesticida
653 $aPersistência aquática
700 1 $aRAMOS, F. R.
700 1 $aMIRANDA, B. C. G.
700 1 $aMUNIZ, D. H. F.
700 1 $aPONTES, R. G. M. S. de
773 $tBulletin of Environmental Contamination and Toxicology$gv. 93, n. 4, p.461-464, 2014.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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