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Análisis exploratorio de las preferencias ambientales por rangos de talla de las hembras maduras e impregnadas de langostino Pleoticus muelleri (Bate, 1888) del Golfo San Jorge. Períodos analizados: noviembre - diciembre de 2008 y enero - febrero de 2009 20
Fernández, M..
En este estudio se presenta el análisis de la relación entre los valores de densidad de hembras maduras y de hembras impregnadas de langostino Pleoticus muelleri (Bate, 1888) del Golfo San Jorge y las variables ambientales. Los datos analizados provienen de las campañas de investigación del INIDEP OB-03/08 y OB-01/09 realizadas en noviembre-diciembre de 2008 y en enero-febrero de 2009, respectivamente; en el área comprendida entre las latitudes 43º 20´ S y 47º 00´ S y el meridiano 64º 00´ W y la costa. Se consideraron las variables biológicas: densidad de hembras maduras y de hembras impregnadas de langostino, por rango de tallas y las variables ambientales: profundidad, temperatura y salinidad de agua de fondo así como, la diferencia de temperatura y de...
Tipo: Theses and Dissertations Palavras-chave: Females; Sexual maturity; Spawning grounds; Environmental conditions; Spatial analysis; Statistical models; Shrimp fisheries.
Ano: 2009 URL: http://hdl.handle.net/1834/5159
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Avaliação genotípica de laranjeiras-doce via modelos mistos. 119
CAPISTRANO, M. da C..
Inúmeras pesquisas têm sido desenvolvidas com laranjeiras-doce visando identificar genótipos superiores e garantir altas produtividades. As avaliações com laranjeiras geralmente são realizadas em várias safras e locais, para verificar o comportamento diferencial de acordo com as variações ambientais, o que torna a seleção cada vez mais difícil por metodologias estatísticas tradicionais. A seleção deve ser baseada em modelos estatísticos e biométricos os mais acurados possível para garantir maior eficiência e confiabilidade ao processo seletivo. A metodologia dos modelos mistos (REML/BLUP) é uma alternativa que utiliza valores genotípicos para realizar a seleção, além de estimar a repetibilidade e permitir estudos de estabilidade e adaptabilidade associados...
Tipo: Teses Palavras-chave: Naranjas; Métodos de selección; Modelos estadísticos; Variedades de rendimiento elevado; Metodologia REML/BLUP; Laranja Doce; Citrus Sinensis; Seleção Genótipa; Método Estatístico; Produtividade; Oranges; Genotype; Selection methods; Statistical models; High-yielding varieties.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1120374
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BeefTader (part I): optimal economical endpoint identification using mixed modeling approach decreases greenhouse gases emission and other pollutants for livestock farmers. 119
ALBERTINI, T. Z.; BIASE, A. G.; BARBOSA, M.; FERNANDES, P. A. P.; CASTANHEIRA, M. A.; LANNA, D. P.; NEPOMUCENO, N. H. C.; BARIONI, L. G.; MEDEIROS, S. R. de; TORRES JUNIOR, R. A. de A.; OLTJEN, J. W.; COSTA JÚNIOR, C..
The current study is the first from three sequential abstracts based on BeefTrader DSS to maximize profitability of farmers and the meat industry.
Tipo: Anais e Proceedings de eventos Palavras-chave: Sistema de suporte à decisão; Modelo estatístico.; Gado de corte; Modelo Matemático.; Decision support systems; Beef cattle; Mathematical models; Statistical models; Feedlots.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1057577
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Dinámica y estructura poblacional del langostino colorado III y IV regiones. Informe Final, FIP n° 2005 -41 20
Quiroz, J.C.; Montenegro, C.; Báez, P.; Espíndola, F..
Se reportan las actividades y resultados del proyecto FIP 2005-41 “Dinámica y estructura poblacional del langostino colorado III y IV Regiones”. Para abordar el estudio de la dinámica y estructura poblacional de P. monodon, se plantearon dos hipótesis. Una postula que la especie posee una estructura poblacional a lo largo de la plataforma continental, en un gradiente latitudinal, en tanto que la otra plantea que la especie tiene una estructura poblacional a través de la plataforma continental, en un gradiente longitudinal. Para someter a pruebas estas hipótesis se realizaron varios análisis estadísticos de variables fundamentales del stock, como la densidad, los tamaños corporales, las edades y componentes del stock en función de su madurez. Los...
Tipo: Report Palavras-chave: Population dynamics; Population structure; Size distribution; Spawning populations; Statistical models; Marine crustaceans; Population structure; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_6111.
Ano: 2006 URL: http://hdl.handle.net/1834/1505
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Disponibilidade de metais pesados decorrente do tempo de incubação de composto de lixo urbano em diferentes solos. 119
SILVA, F. C. da; SILVA, C. A.; BERGAMASCO, A. F.; RAMALHO, A. L..
O uso agrícola do composto de lixo (CL) nas lavouras constitui a alternativa de maior viabilidade técnico-científica-econômica, por ser fonte considerável de nutrientes e matéria orgânica. Este estudo foi conduzido em casa de vegetação na Embrapa/Centro Nacional de Pesquisas de Solos (CNPS), e teve como objetivo avaliar o efeito de doses de CL (0,25, 50 e 100 mg ha-1) e períodos de incubação (0, 16, 32, 64 e 150 dias) sobre a disponibilidade (Mehlich-1) de Cd, Cr, Co, Ni e Pb em cinco solos (Latossolo Vermelho-Amarelo Distrófico - LVd, Argissolo Vermelho-Amarelo Distrófico - PVd, Chernossolo Haplico Órtico - MXo, Planossolo Hidromórfico Distrófico - SGd e Nitossolo Vermelho Eutroférrico - Nvef).
Tipo: Anais e Proceedings de eventos Palavras-chave: Resíduo sólido urbano; Modelos estatísticos; Urban solid residue; Incubação; Solid wastes; Statistical models.
Ano: 2002 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/8554
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Drying kinetics of jabuticaba pulp by regression models 94
Furtado,Thais Destefani Ribeiro; Muniz,Joel Augusto; Silva,Edilson Marcelino; Fernandes,Jaqueline Gonçalves.
Abstract Jabuticaba tree is native to the Atlantic Forest in Southern Brazil, and its fruit is widely consumed in the fresh form, but it is highly perishable, requiring conservation techniques. The aim of this study was to describe the drying kinetics of jabuticaba pulp at temperatures of 50 and 60°C, comparing the Henderson, Simple Three-Parameter Exponential, Lewis, Thompson, Fick and Wang and Sing regression models and estimating the Absolute Drying Rate (ADR) for the best model. Parameters were estimated using the SAS software. The evaluation of the quality in the adjustment and selection of models was made based on the adjusted determination coefficient, Residual Standard Deviation and Akaike Information Criterion. Models presented good adjustment to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Food preservation; Moisture ratio; Nonlinear regression; Statistical models.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100903
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Estimação da curva de retenção de água no solo considerando erros heteroscedásticos. 119
PARAÍBA, C. C. M.; MAIA, A. de H. N.; DINIZ, C. A. R.; RODRIGUES, L. N..
Tipo: Separatas Palavras-chave: Modelos não lineares; Heterocedasticidade; Modelo de van Genuchten; Água do solo; Condutividade hidráulica; Análise estatística; Método estatístico; Soil water characteristic; Statistical models.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/915346
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Indice multivariado de El Niño en el Ecuador 20
Zambrano, L.; Zambrano, E.; Martínez, R.; Vera, L.; Briones, K..
Utilizando cinco estaciones costeras del área continental del Ecuador y una ubicada en las Islas Galápagos, se analizan cinco parámetros océanicos y atmosféricos en el período comprendido de 1975 a 2002. Empleando técnicas estadísticas se determinó un índice multivariado, el mismo que describe la variabilidad climática en el área del Pacífico ecuatoriano durante los eventos ENOS (fase cálida y fría). El índice calculado tiene una correlación de 0.65 con el comportamiento observado de los eventos, considerando como principal indicador la región niño 1+2.
Tipo: Journal Contribution Palavras-chave: Temporal variations; El Nino phenomena; Statistical models; Fixed stations.
Ano: 2002 URL: http://hdl.handle.net/1834/2235
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Introducción al análisis Bayesiano 20
Hernandez, D.R..
An introduction to the Bayesian Analysis is presented and conceptual aspects highlighted. Initially, the probability concept is analyzed from its objective perspective such as frequency, and from its subjective perspective such as degree of belief. It is discussed how, within the context of Bayesian statistics, probability as degree of belief allows to give sense to the probability of a hypothesis and, therefore, enables to resolve problems of scientific interest that could not be otherwise addressed. The likelihood concept is discussed and the Bayes formula, which integrates a priori information and knowledge with information provided by current data demonstrated. Basic concepts of the Decision Theory within the Bayesian perspective are introduced. The...
Tipo: Book Palavras-chave: Statistical analysis; Statistical models; Fishery resources; Stock assessment; Prediction; Probability theory; Statistical analysis; Stock assessment; Fishery resources; Prediction; Http://aims.fao.org/aos/agrovoc/c_7378; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_29367.
Ano: 2007 URL: http://hdl.handle.net/1834/2560
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La dynamique sedimentaire en Baie de Seine nord-orientale, fluctuations et evolution de la couverture meuble 5
Crevel, L.
This paper summarizes the main results obtained by the author at the time of his thesis. Sediment granulometry, composition and distribution are exposed in the first part. The use of factor analysis on sediment samples allows for the classification of soft sediments and to study its evolution during one and several years. Since 1978, the north-eastern Seine Bay sedimentation seems to be stable for all fluctuations and slitting in Antifer oil terminal.
Tipo: Text Palavras-chave: Statistical models; Temporal variations; Granulometry; Cohesionless sediments; Sediment dynamics.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1283.pdf
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Leaf area estimation of cassava from linear dimensions 42
ZANETTI,SAMARA; PEREIRA,LAÍS F.M.; SARTORI,MARIA MÁRCIA P.; SILVA,MARCELO A..
ABSTRACT The objective of this study was to determine predictor models of leaf area of ​​cassava from linear leaf measurements. The experiment was carried out in greenhouse in the municipality of Botucatu, São Paulo state, Brazil. The stem cuttings with 5-7 nodes of the cultivar IAC 576-70 were planted in boxes filled with about 320 liters of soil, keeping soil moisture at field capacity, monitored by puncturing tensiometers. At 80 days after planting, 140 leaves were randomly collected from the top, middle third and base of cassava plants. We evaluated the length and width of the central lobe of leaves, number of lobes and leaf area. The measurements of leaf areas were correlated with the length and width of the central lobe and the number of lobes of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta Crantz; Leaf biometrics; Statistical models; Multiple regression.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401729
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Linear, generalized, hierarchical, bayesian and random regression mixed models in genetics/genomics in plant breeding. 119
RESENDE, M. D. V. de; ALVES, R. S..
This paper presents the state of the art of the statistical modelling as applied to plant breeding. Classes of inference, statistical models, estimation methods and model selection are emphasized in a practical way. Restricted Maximum Likelihood (REML), Hierarchical Maximum Likelihood (HIML) and Bayesian (BAYES) are highlighted. Distributions of data and effects, and dimension and structure of the models are considered for model selection and parameters estimation. Theory and practical examples referring to selection between models with different fixed effects factors are given using the Full Maximum Likelihood (FML). An analytical FML way of defining random or fixed effects is presented to avoid the subjective or conceptual usual definitions. Examples of...
Tipo: Artigo de periódico Palavras-chave: Método Estatístico; Melhoramento Genético Vegetal; Plant breeding; Statistical models.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129637
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Machine learning and statistics to qualify environments through multi-traits in Coffea arabica. 119
COSTA, W. G. da; BARBOSA, I. de P.; SOUZA, J. E. de; CRUZ, C. D.; NASCIMENTO, M.; OLIVEIRA, A. C. B. de.
Several factors such as genotype, environment, and post-harvest processing can affect the responses of important traits in the coffee production chain. Determining the influence of these factors is of great relevance, as they can be indicators of the characteristics of the coffee produced. The most efficient models choice to be applied should take into account the variety of information and the particularities of each biological material. This study was developed to evaluate statistical and machine learning models that would better discriminate environments through multi-traits of coffee genotypes and identify the main agronomic and beverage quality traits responsible for the variation of the environments. For that, 31 morpho-agronomic and post-harvest...
Tipo: Artigo de periódico Palavras-chave: Análise Estatística; Genótipo; Processamento; Pós-Colheita; Cadeia Produtiva; Café; Statistical analysis; Statistical models; Genotype-environment interaction; Postharvest systems; Coffea arabica var. arabica.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133732
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Modeling the effect of the age of dam at calving on the weaning weight of Charolais-Zebu crossbred calves. 119
TORAL, F. L. B.; TORRES JÚNIOR, R. A. de A.; LOPES, P. S.; SILVA, L. O. C. da; REIS FILHO, J. C..
ABSTRACT - The objective of this study was to evaluate alternatives for modeling the age of dam at calving (AOD) effect on the weaning weight of Charolais-Zebu crossbred calves. Data from 56,965 calves were analyzed, using statistical models considering the fixed effects of the contemporary groups, sire and dam genetic groups, and AOD. The AOD effect was fitted to models using annual age classes, and ordinary quadratic to quintic-ordered polynomials (OP) or segmented polynomials (SP) with two, three, four, six and twelve evenly spaced intervals. In the case of segmented polynomials, general linear and quadratic effects and only one quadratic additional term from each knot were considered. The AOD effects were nested within sex of calf in all cases....
Tipo: Artigo de periódico Palavras-chave: Análise Estatística; Bezerro Mestiço; Gado Charolês; Gado de Corte; Impacto Ambiental; Melhoramento Genético Animal; Seleção Genética; Vaca; Beef cattle; Charolais; Least squares; Statistical models; Weaning weight.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/578222
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Modelo Local de Producción Excedente para la determinación de la Captura Máxima Biológicamente Aceptable y análisis de riesgo de un recurso pesquero, con estimación bayesiana de los parámetros 20
Hernández, D.R.; Carozza, C.R..
The simple surplus production model introduced is called Local Surplus Production Model (LSPM) because its only assumption is that the mean surplus production remains constant during a short period of years previous to the date of assessment. Its application requires only a short series (3-4 years) of values of an abundance index proportional to the mean real abundance of the resource. The model parameters estimate is performed in a Bayesian context using the SIR (Sampling Importance Resampling Algorithm) algorithm. Simple risk criteria to assess the Maximum Biologically Acceptable Catch and the risks associated to each hypothetical catch level considered are proposed. Application of the model to the whitemouth croaker (Micropogonias furnieri) resource is...
Tipo: Journal Contribution Palavras-chave: Stock assessment; Statistical models; Risks; Coastal fisheries.
Ano: 2013 URL: http://hdl.handle.net/1834/5486
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Natural convection drying kinetics of ‘Prata’ and ‘D’água’ banana cultivars (Musa ssp) by nonlinear regression models 94
Furtado,Thais Destefani Ribeiro; Muniz,Joel Augusto; Silva,Edilson Marcelino; Frühauf,Ariana Campos; Fernandes,Tales Jesus.
Abstract Banana is among fruits most planted in tropical countries and belongs to the fruit group most consumed in the world; however, banana needs proper conservation techniques. The aim of this study was to describe the drying kinetics of ‘Prata’ and ‘D’água’ banana cultivars at temperatures of 40 and 70°C, comparing the Henderson, STPE, Lewis, Page and Fick regression models, estimating the Absolute Drying Rate (ADR). Parameters were estimated with R and SAS Studio softwares, using for comparison and selection models of the R²aj, RSD and corrected Akaike Information Criteria. The Page and Fick models did not adjust, and the others presented good adjustment to data. The Henderson model was the most suitable to describe data of ‘Prata’ banana at both...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Food preservation; Absolute Drying Rate; Estimation; Statistical models.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000500901
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Nonlinear modeling growth body weight of Mangalarga Marchador horses 65
Souza,Felipe Amorim Caetano; Fernandes,Tales Jesus; Moura,Raquel Silva de; Meirelles,Sarah Laguna Conceição; Ribeiro,Rafaela Aparecida; Cunha,Fabiana Oliveira; Muniz,Joel Augusto.
ABSTRACT: The analysis of the growth and development of various species has been done using the growth curves of the specific animal based on non-linear models. The objective of the current study was to evaluate the fit of the Brody, Gompertz, Logistic and von Bertalanffy models to the cross-sectional data of the live weight of the MangalargaMarchador horses to identify the best model and make accurate predictions regarding the growth and maturity in the males and females of this breed. The study involved recording the weight of 214 horses, of which 94 were males and 120 were non-pregnant females, between 6 and 153 months of age. The parameters of the model were estimated by employing the method of least squares, using the iteratively regularized...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Age; Body weight; Cross-sectional method; Statistical models.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400657
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Preferencias ambientales, por rangos de talla, de las hembras maduras e impregnadas del langostino Pleoticus muelleri (Spence Bate, 1888) (Crustacea, Decapoda, Solenoceridae) del golfo San Jorge, en la primavera de 2008 y el verano de 2009 20
Hernández, D.R.; Fernández, M.B..
Environmental preferences per size range of mature and impregnated females of shrimp Pleoticus muelleri (Spence Bate, 1888) (Crustacea, Decapoda, Solenoceridae) of the San Jorge Gulf, in Spring 2008 and Summer 2009. The relation between argentine red shrimp Pleoticus muelleri (Spence Bate, 1888) mature and impregnated females density values and environmental variables was analysed. Data derived from the Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) research cruises carried out between 43° S-47° S and 64° Wand the coast during November-December 2008 and January-February 2009. The biological and environmental variables considered were density of mature and impregnated females per size range and depth, bottom water temperature and...
Tipo: Journal Contribution Palavras-chave: Females; Sexual maturity; Environmental conditions; Temperature preferences; Statistical models.
Ano: 2013 URL: http://hdl.handle.net/1834/5505
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Quantifying individual variation in reaction norms using random regression models fitted through Legendre polynomials: application in eucalyptus breeding. 119
ALVES, R. S.; RESENDE, M. D. V. de; ROCHA, J. R. do A. S. de C.; PEIXOTO, M. A.; TEODORO, P. E.; SILVA, F. F. e; BHERING, L. L.; SANTOS, G. A. dos.
An accurate, efficient and informative statistical method for analyses of genotype × environment (G × E) interactions is a key requirement for progress in any breeding program. Thus, the objective of this study was to quantify individual variation in reaction norms using random regression models fitted through Legendre polynomials in eucalyptus (Eucalyptus spp.) breeding. To this end, a data set with 215 eucalyptus clones of different species and hybrids evaluated in four environments for diameter at breast height (DBH) and Pilodyn penetration (PP) was used. Variance components were estimated by restricted maximum likelihood, and genetic values were predicted by best linear unbiased prediction. The best-fitted model for DBH and PP was indicated by the...
Tipo: Artigo de periódico Palavras-chave: Método Estatístico; Melhoramento Genético Vegetal; Interação Genética; Eucalipto; Statistical models; Genotype-environment interaction; Forest trees; Plant breeding; Eucalyptus.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129653
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Recomendación de capturas biológicamente aceptables de anchoíta patagónica (Engraulis anchoita, 41º S-48º S) durante 2012 20
Hansen, J.E.; Buratti, C.C.; Garciarena, A.D..
Advise on Biologically Allowable Catch (BAC) for Southern Argentine anchovy (Engraulis anchoita, 41° S-48° S) during 2012. To assess the evolution since 1990 and the current status of Argentine anchovy Southern stock, an Age Structured Population Model (ASPM) was used. Modeling of catches according to a four-month period pulses allowed to predict annual yields so as to get them close to the nominal catches officially recorded. Some independent indexes of stock abundance (eight acoustic estimates of total biomass and five estimates of spawning stock biomass obtained with the Daily Egg Production Method) and the proportion of individuals per age group assessed during the same cruises were used to calibrate the fitting. No stock-recruitment function but a...
Tipo: Journal Contribution Palavras-chave: Stock assessment; Yield; Statistical models; Age composition; Clupeoid fisheries.
Ano: 2013 URL: http://hdl.handle.net/1834/5508
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