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A eficiência da análise bivariada em relação a univariada no melhoramento animal. Repositório Alice
MASCIOLI, A. dos S.; FREITAS, A. R. de; ALENCAR, M. M. de.
Escanear
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Acuracia; Gado de corte; Eficiencia; Analise de variancia; Parametros geneticos; Acuracy; Beef cattle; Eficiency; Variance analysis; Genetic parameter.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/45780
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Análisis de la estratificación empleada en campañas de evaluación de recursos demersales costeros en la Zona Común de Pesca Argentino-Uruguaya y en El Rincón, 1994 OceanDocs
Perrotta, R.G.; Lasta, C.A.; Aubone, A..
The data belong to the demersal fishery research cruise H-13/94. Stratification used for research surveys from the catches values was tested, both for the northern area, Argentine-Uruguayan Common Fishing Zone (AUCFZ) located between 34° and 39°S, and the southern area situated between 38°30' and 41°30'S (El Rincón, Buenos Aires Prov., Argentina). The variables considered were: croaker and striped weak fish densities and depth. Discriminant factor analysis indicates the formation of two and six strata for the southern and northern areas respectively. The adequate confidential limits of the estimated biomass for each strata obtained for different species, indicate that the criteria for stratification is satisfactory. The number of catches by strata was...
Tipo: Journal Contribution Palavras-chave: Fishery surveys; Coastal fisheries; Demersal fisheries; Statistical sampling; Variance analysis; Surveys; Demersal fisheries; Coastal fisheries; Surveys; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_1696; Http://aims.fao.org/aos/agrovoc/c_7537.
Ano: 1998 URL: http://hdl.handle.net/1834/2470
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Best conditions for biodegradation of diesel oil by chemometric tools BJM
Kaczorek,Ewa; Bielicka-Daszkiewicz,Katarzyna; Héberger,Károly; Kemény,Sándor; Olszanowski,Andrzej; Voelkel,Adam.
Diesel oil biodegradation by different bacteria-yeast-rhamnolipids consortia was tested. Chromatographic analysis of post-biodegradation residue was completed with chemometric tools (ANOVA, and a novel ranking procedure based on the sum of ranking differences). These tools were used in the selection of the most effective systems. The best results of aliphatic fractions of diesel oil biodegradation were observed for a yeast consortia with Aeromonas hydrophila KR4. For these systems the positive effect of rhamnolipids on hydrocarbon biodegradation was observed. However, rhamnolipids addition did not always have a positive influence on the biodegradation process (e.g. in case of yeast consortia with Stenotrophomonas maltophila KR7). Moreover, particular...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradation; Chemometrics; Systems ranking; Variance analysis.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100017
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Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding Agronomy
Melo, Rita Carolina de; Coimbra, Jefferson Luís Meirelles; Trevisani, Nicole; Guidolin, Altamir Frederico; Kavalco, Sydney Antonio Frehner.
The present work has aimed to assess the consideration of the appropriate variation sources of the statistical model and their impacts on the conclusions plant breeding. The Value for Cultivation and Use test was conducted to assess three common locations (Lages, Ponte Serrada, and Canoinhas) and four non-common locations (Chapecó, Guatambu, Urussanga, and Campos Novos). The grain yields of six bean genotypes were evaluated in order to represent the imbalance between the common and non-common locations. The statistical analysis considered two situations: i) union of the location factors and cultivation years, with a single variation source called environment and ii) decomposition of the mean square values of the two factors, location and year. According to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: VCU trials; Variance analysis; Mathematical expectations.; Melhoramento Vegetal.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791
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Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding Agronomy
Melo, Rita Carolina de; Coimbra, Jefferson Luís Meirelles; Trevisani, Nicole; Guidolin, Altamir Frederico; Kavalco, Sydney Antonio Frehner.
The present work has aimed to assess the consideration of the appropriate variation sources of the statistical model and their impacts on the conclusions plant breeding. The Value for Cultivation and Use test was conducted to assess three common locations (Lages, Ponte Serrada, and Canoinhas) and four non-common locations (Chapecó, Guatambu, Urussanga, and Campos Novos). The grain yields of six bean genotypes were evaluated in order to represent the imbalance between the common and non-common locations. The statistical analysis considered two situations: i) union of the location factors and cultivation years, with a single variation source called environment and ii) decomposition of the mean square values of the two factors, location and year. According to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.00.00.00-4; 5.01.03.00-8 VCU trials; Variance analysis; Mathematical expectations. Melhoramento Vegetal.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791
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Estandarización del esfuerzo de pesca ejercido sobre el abadejo (Genypterus blacodes) en aguas Argentinas. Período 1986-1996. OceanDocs
Cordo, H.D..
If the fishing effort is properly standardized, the catch per unit of effort may be proportional to biomass (C/f=q x B(med)). A multiplicative factorial model was applied to the ling Genypterus blacodes catch and effort data by the Argentine bottom trawl fleet recorded between 1986 and 1996. The relative fishing power of the fleet strata was estimated and the effort standardized to obtain normalized CPUEs. Provided they were estimated in the same spatial and temporal situation, there were no differences between the normalized CPUE and the nominal CPUE because ling is caught mainly as by-catch in the Argentine hake fishery. A general picture of the spatial and temporal distribution of ling as reflected by the commercial fleet operations was also obtained.
Tipo: Journal Contribution Palavras-chave: Catch/effort; Fishing effort; Variance analysis; Fishing power; Mathematical models; Fishing power; Fishing effort; Mathematical models; Http://aims.fao.org/aos/agrovoc/c_29792; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_24199.
Ano: 2001 URL: http://hdl.handle.net/1834/1868
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Les analyses statistiques multivariées : application sur deux espèces de Soleidea des cotes Tunisiennes OceanDocs
Glid, A.; Mosbah, S.; Ghorbel, M.; Bradai, M.N..
Une analyse statistique multivariée a été entreprise sur la base de 11 caractères métriques et 10 caractères méristiques de 3 échantillons de Soleidae appartenant à 2 espèces différentes en provenance de 3 localités distinctes : S. aegyptiaca de Sfax et de Djerba et S. senegalensis de Bizerte. Cette étude a montré une différence significative de certains caractères entre les deux espèces d’une part et au sein de la même espèce péchée dans 2 localités différentes. Le recours aux fonctions canoniques a permis d’élaborer des équations pouvant classer un échantillon dans l’espèce adéquate et dans la localité de sa capture. Une étude complémentaire intégrant toutes les espèces de cette famille, morphologiquement très semblable, pourrait être une méthodologie de...
Tipo: Journal Contribution Palavras-chave: Animal morphology; Fishery regulations; Fishing rights; Meristic counts; Multivariate analysis; Statistical analysis; Taxonomy; Variance analysis; Fishery policies.
Ano: 2009 URL: http://hdl.handle.net/1834/4488
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Les chalutages experimentaux: Utilisation de la temperature et de la profondeur comme variables auxiliaires. ArchiMer
Chevalier, R.
Very often stratification of bottom-trawl surveys is done by using a stratified random sampling scheme. If a survey is directed towards a group of species, the sampling scheme has to be a compromise between these different interests. So the sampling scheme is not totally efficient for each of the species. The use of auxiliary variables, as depth or temperature, looks as if such supplementary informations could neither improve the efficiency of the estimators nor the subsequent analysis (analysis of covariance).
Tipo: Text Palavras-chave: Hippoglossoides platessoides; Gadus morhua; Gadidae; Pisces; Variance analysis; Bottom trawls; Experimental fishing.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/publication-1803.pdf
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Methods of selecting common bean lines having high yield, early cycle and erect growth Rev. Ciênc. Agron.
Jost,Evandro; Ribeiro,Nerinéia Dalfollo; Rosa,Daniele Piano; Possobom,Micheli Thaise Della Flora; Maziero,Sandra Maria.
Selection for grain yield, combined with phenological and morphological characteristics of agricultural interest, represents technological advances in the common bean. The objectives of this work were to estimate genetic parameters and the efficiency of both the Pedigree and Single-Seed Descent (SSD) methods for progression segregating populations in order to obtain common bean lines superior in grain yield, precocity and plant architecture. To do this, 136 inbred lines obtained using the Pedigree method, and 136 inbred lines obtained by SSD method were evaluated in a 17 x 17 simple lattice design, integrating the 272 inbred lines in the F7 generation and 17 cultivars as control. Estimates of moderate narrow sense heritability were obtained for grain...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Common bean-genetic breeding; Plant-population; Variance analysis.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100013
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Métodos de estimação de variância e parâmetros afins de características de crescimento em bovinos. Repositório Alice
FREITAS, A.R. de; VENCOVSKY, R..
O objetivo deste trabalho foi comparar os metodos de Maxima Verossimilhanca , Maxima Verossimilhanca Restrita e variancia quadratica Minima, quanto aos aspectos computacionais das estimativas de variancias geneticas, residuais e de outros parametros geneticos na analise univariadaa desmama e aos de parametros afins de caracteristicas crescimento em bovinos
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Gado de corte; Parâmetros genético; Analise de Variância; Máxima de Verossimilhança; Beef cattle; Maximum likelihood; Variance analysis.
Ano: 1992 URL: http://www.alice.cnptia.embrapa.br/handle/doc/42473
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Risk and Uncertainty Analysis with Networks of Decisions AgEcon
Recke, Guido.
In this paper an applied approach for analysing economic problems under risk and uncertainty based on networks of decisions (NODs) will be discussed. It can be shown that network of decision analysis can help to understand complex decision problems under risk and uncertainty in single case situations. A variety of decision criteria like expectation values and a special ANOVA can be used to get better knowledge about prediction and controllability of the decision problems.
Tipo: Presentation Palavras-chave: Networks of decisions; Decision criteria; Variance analysis; Prediction; Control; Risk and Uncertainty.
Ano: 2011 URL: http://purl.umn.edu/120536
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Sampling for a bacteriological study of aquatic enrironments ArchiMer
Troussellier, M; Baleux, B; Andre, P.
Using water samples from several observation levels of a brackish lagoon, statistical solutions are offered for the sampling optimisation of bacteria viable counts. The variability between plate count is studied by the mean of the Taylor's power law. The sampling strategy optimisation, including several sources of variability, is realized by hierarchical analysis of variance and the estimation of the sampling cost of each source. This optimisation procedure results in a great increase of the relative efficiency of the sampling design and allow to obtain significant differences between the bacterial concentrations. The effect of the reduction of the total sampling effort on the precision of these average concentrations pointed out the scientific and...
Tipo: Text Palavras-chave: Bacteria; Abundance; Variance analysis; Microbiological analysis; Lagoons; Brackishwater environment; Bacterial counters; Biological sampling.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1984/acte-941.pdf
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