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Egg production evaluation of laying hens by multivariate analysis 45
Ferreira,P.B.; Rorato,P.R.N.; Mello,F.C.B.; Bevilaqua,B.; Macedo,A.; Brittes,L.B.P..
ABSTRACT This study aimed to verify the existence of differences between hens from the Barred Plymouth Rock (PRB) breed and White Plymouth Rock (PRW) breed by multivariate analysis of weekly egg production and cumulative during the years of 1998 and 2010, from the Laboratório de Avicultura (LAVIC) of the Departamento de Zootecnia at the Universidade Federal de Santa Maria (UFSM). For the analysis of the univariate and multivariate variance, the experimental design was completely randomized with two treatments (breed) and 299 repetitions of the PRW breed and 350 of the PRB breed. The parameters analyzed were the weekly productions of eggs per bird from the 21st to the 50th week of age (P21, P22, ..., P50) and production of eggs accumulated being from the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Analysis of multivariate variance; Cluster; Principal components.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300676
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Transmission of visceral leishmaniasis in dogs in a risk area of the metropolitan region of Belo Horizonte, Minas Gerais, Brazil 45
Lopes,E.G.P.; Oviedo-Pastrana,M.E.; Borges,L.F.N.M.; Freitas,A.C.P.; Dias,E.S.; Silva,S.R.; Haddad,J.P.A.; França-Silva,J.C.; Soares,D.F.M..
ABSTRACT Visceral leishmaniasis (VL) has spread rapidly across cities in the metropolitan region of Belo Horizonte. The aim of this study was to investigate VL dynamics in a prospective cohort study of dogs in Juatuba, between 2010 and 2011, to confirm the incidence of Leishmania infantum, and to assess possible risk factors associated with infection. An observational and prospective closed cohort study was performed using serology testing in dogs, randomly selected from the whole municipality. All seronegative dogs, or dogs with inconclusive results were monitored using indirect immunofluorescence (IIF) at 6-month intervals. The dog's owners completed a semi-structured questionnaire to assess possible causal factors of seroconversion, and the responses...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leishmaniasis; Incidence; Seroconversion; Risk factors; Cluster.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000601403
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Classification of some Linseed (Linum usitatissimum L.) Genotypes for Salinity Tolerance using Germination, Seedling Growth, and Ion Content 117
Demir Kaya,Mehmet; Day,Sibel; Cikili,Yakup; Arslan,Neset.
Salinity reduces germination, delays emergence, and inhibits seedling growth of linseed (Linum usitatissimum L.) while some varieties are less affected by salinity than others. In this study, we aimed to determine the effects of NaCl levels (0, 5, 10, 20 and 30 dS m-1) on germination and seedling growth of 10 linseed genotypes (lines 87, 89, 104, 114, 193, 194, 209, 215, C-90 and cv. San-85) and to classify the genotypes for salinity tolerance using germination and seedling characteristics. Germination percentage, mean germination time, root and shoot length, seedling fresh and dry weight, Na+ content and Na:K ratio of seedlings were investigated. Classification of linseed genotypes for salinity tolerance was done according to (i) combination of Principal...
Tipo: Journal article Palavras-chave: NaCl; Tolerance; Cluster; Ion accumulation.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100005
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Cooking quality of upland and lowland rice characterized by different methods 116
Garcia,Diva Mendonça; Bassinello,Priscila Zaczuk; Ascheri,Diego Ramiro Palmirez; Ascheri,José Luis Ramirez; Trovo,José Benedito; Cobucci,Rosário de Maria Arouche.
Rice cooking quality is usually evaluated by texture and stickiness characteristics using many different methods. Gelatinization temperature, amylose content, viscosity (Brookfield viscometer and Rapid Visco Analyzer), and sensory analysis were performed to characterize culinary quality of rice grains produced under two cropping systems and submitted to different technologies. All samples from the upland cropping system and two from the irrigated cropping system presented intermediate amylose content. Regarding stickiness, BRS Primavera, BRS Sertaneja, and BRS Tropical showed loose cooked grains. Irrigated cultivars presented less viscosity and were softer than upland cultivars. Upland grain samples had similar profile on the viscoamylografic curve, but...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L; Texture; Stickiness; Amylase; Gelatinization temperature; Cluster.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000200010
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Competitiveness levels in cattle herd farms 65
Marques,Pedro Rocha; Barcellos,Júlio Otávio Jardim; Dill,Matheus Dhein; Dias,Eduardo Antunes; Azevedo,Eduardo Vaz Torres; Lampert,Vinícius do Nascimento; McManus,Concepta Margaret.
The aim of this experiment was to identify improvement demands for farms with different levels of competitiveness in the west of Rio Grande do Sul state, Brazil. A total of 63 owners of large farms were interviewed (farms with an area greater than 900ha) by applying a semi-structured questionnaire, guided by four drivers: technology (TEC), management (MAN), market relations (MR) and the institutional environment (IE).It was used the Statistical Analysis System 9.2 software to perform the cluster analysis and identify farmers' characteristics. Three random clusters with different levels of competitiveness were observed: low competitiveness level (LCL), middle competitiveness level (MCL) and high competitiveness level (HCL). The 29 variables (sub factors)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cluster; Level of impact; Management; Ranking; Stratification.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000300480
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Uso de análise multivariada na classificação das fontes hídricas subterrâneas da bacia hidrográfica do Salitre 70
Brito,Luiza T. de L.; Silva,Aderaldo de S.; Srinivasan,Vajapeyam S.; Galvão,Carlos de O.; Gheyi,Hans R..
Este estudo teve por objetivo identificar as variáveis responsáveis pela maior variabilidade da qualidade das águas subterrâneas da bacia hidrográfica do Rio Salitre - BA, e detectar as fontes que apresentam características semelhantes, visando a subsidiar medidas de monitoramento e gestão da qualidade das águas da bacia. Para isso, foram utilizadas técnicas de análise multivariada referente à análise fatorial em componentes principais e de agrupamento. A análise fatorial permitiu agrupar as variáveis em três fatores principais que explicaram 86,99%; 72,08% e 68,33% da variância total acumulada em 1984 e 2001, nos períodos de chuvas e sem chuvas, respectivamente. As variáveis priorizadas estão relacionadas com a salinidade das águas. Assim, medidas de...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Impactos ambientais; Análise fatorial; Cluster.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162006000100005
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Geostatistics and remote sensing methods in the classification of images of areas cultivated with citrus 70
Silva,Alessandra F.; Barbosa,Ana Paula; Zimback,Célia R. L.; Landim,Paulo M. B..
This study compares the precision of three image classification methods, two of remote sensing and one of geostatistics applied to areas cultivated with citrus. The 5,296.52ha area of study is located in the city of Araraquara - central region of the state of São Paulo (SP), Brazil. The multispectral image from the CCD/CBERS-2B satellite was acquired in 2009 and processed through the Geographic Information System (GIS) SPRING. Three classification methods were used, one unsupervised (Cluster), and two supervised (Indicator Kriging/IK and Maximum Likelihood/Maxver), in addition to the screen classification taken as field checking.. Reliability of classifications was evaluated by Kappa index. In accordance with the Kappa index, the Indicator kriging method...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Indicator Kriging; Cluster; Maxver; CBERS-2B satellite; Spatial classification.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600017
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Instruções para uso do Open Grid Engine no Laboratório Multiusuário de Bioinformática. 14
CINTRA, L. C..
O presente trabalho tem sua relevância no treinamento dos recursos humanos que estão atuando no âmbito de projetos da Embrapa que exigem o processamento intenso e, por isso, demandam recursos computacionais especiais para a obtenção de seus resultados. No entanto, problemas similares ocorrem em outras organizações de ensino e pesquisa no País; e a discussão apresentada pode ser útil também para profissionais dessas, que queiram ampliar a sua capacidade de processamento utilizando clusters computacionais.
Tipo: Folhetos Palavras-chave: Bioinformática; Processamento de dados biológicos; Cluster; Bioinformatics.
Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1066147
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Desvendando a infraestrutura de TI nos bastidores da implementação de cenários de virtualização utilizando o Xen. 14
FERREIRA, D. M..
Este documento visa disseminar na Embrapa todo o conhecimento adquirido na Embrapa Informática Agropecuária para implementação de uma solução de virtualização, considerando desde um cenário mais simples, com o uso de apenas um servidor físico de grande porte, até o mais complexo, que envolve a utilização de diversos servidores físicos em cluster, switches e storages de disco.
Tipo: Livros Palavras-chave: Virtualização; Alta disponibilidade; Xen; Cluster; Tecnologia da informação; Information technology; Storage.
Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1064123
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Reconhecimento de padrões de pontes de hidrogênio – preliminares do desenvolvimento de uma metodologia baseada em TI para a predição da posição de átomos de hidrogênio em proteínas. 14
MANCINI, A. L.; ROMERO, R. A. F..
Os primeiros resultados do desenvolvimento de um novo método para a localização do átomo de hidrogênio contido em grupos hidroxila da cadeia lateral dos aminoácidos é apresentado neste artigo. Os métodos existentes utilizam campos de força para esse problema de localização. Os autores propõem uma abordagem computacional para esse problema, pelo reconhecimento de padrões de pontes de hidrogênio agrupados por similaridade em clusters.
Tipo: Folhetos Palavras-chave: Reconhecimento de padrões; Pontes de hidrogênio; Bioinformática; Cluster; Rede neural; Hidrogênio.
Ano: 2008 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/31819
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Guia de instalação do Ganglia. 14
VIEIRA, F. D..
Ganglia Monitoring Daemon (gmond). Ganglia Meta Daemon (gmetad). Ganglia PHP Web Front-end. Instalação. Regras de Firewall. Configuração de um cluster. Multicast. Unicast. Configuração de múltiplos clusters.
Tipo: Folhetos Palavras-chave: Computação em nuvem; Cluster; Sistemas distribuídos.
Ano: 2012 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/952842
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Regional metier definition: a comparative investigation of statistical methods using a workflow applied to international otter trawl fisheries in the North Sea 5
Deporte, Nicolas; Ulrich, Clara; Mahevas, Stephanie; Demaneche, Sebastien; Bastardie, Francois.
The European Common Fisheries Policy recognizes the importance of accounting for heterogeneity in fishing practices, and metier-based sampling is now at the core of the EU Data Collection Framework. The implementation of such an approach would require Member States to agree on the standard regional metier definitions and on practical rules to categorize logbook records into metiers. Several alternative approaches have been used in the past to categorize landings profiles, but no consensus has yet emerged. A generic open-source workflow is developed to test and compare a selection of methods, including principal components analysis (PCA), hierarchical agglomerative clustering (HAC), K-means, and Clustering LARge Applications (CLARA), and to provide simple...
Tipo: Text Palavras-chave: Cluster; Data Collection Framework (DCF); Logbooks; Mtier; Mixed fisheries; Multivariate analysis; North Sea.
Ano: 2012 URL: https://archimer.ifremer.fr/doc/00071/18225/15841.pdf
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From population connectivity to the art of striping Russian dolls: the lessons from Pocillopora corals 5
Gelin, Pauline; Fauvelot, Cecile; Bigot, Lionel; Baly, Joseph; Magalon, Helene.
Here, we examined the genetic variability in the coral genus Pocillopora, in particular within the Primary Species Hypothesis PSH09, identified by Gélin, Postaire, Fauvelot and Magalon (2017) using species delimitation methods [also named Pocillopora eydouxi/meandrina complex sensu, Schmidt-Roach, Miller, Lundgren, & Andreakis (2014)] and which was found to split into three secondary species hypotheses (SSH09a, SSH09b, and SSH09c) according to assignment tests using multi-locus genotypes (13 microsatellites). From a large sampling (2,507 colonies) achieved in three marine provinces [Western Indian Ocean (WIO), Tropical Southwestern Pacific (TSP), and Southeast Polynesia (SEP)], genetic structuring analysis conducted with two clustering analyses...
Tipo: Text Palavras-chave: Bayesian assignments; Cluster; DAPC; Microsatellites; Pocillopora; Scleractinian.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00416/52776/53649.pdf
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The Role of Clustering in Rural Industrialization: A Case Study of the Footwear Industry in Wenzhou 31
Huang, Zuhui; Zhang, Xiaobo; Zhu, Yunwei.
Wenzhou used to be one of the poorest regions in eastern China. With limited arable land, poor road access to major cities, and little support from the upper level governments, this region seemed to lack all the conditions necessary for economic growth. However, over the past several decades Wenzhou has developed the most dynamic private sector in China, and has accordingly achieved one of the fastest growth rates. In particular, the footwear industry in Wenzhou has grown from a negligible market share to the largest in China. Here, we report a survey of 140 Wenzhou-based footwear enterprises of various scales, and use this information to examine the driving forces behind the dramatic rural industrial growth seen in this region. Our results show that...
Tipo: Working or Discussion Paper Palavras-chave: Cluster; Industrialization; Finance; Economic development; Nonfarm economy.; Community/Rural/Urban Development.
Ano: 2007 URL: http://purl.umn.edu/42408
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A COMPETITIVIDADE, SEGUNDO A ANÁLISE DE UM GRANDE CLUSTER DE PRODUÇÃO AGROINDUSTRIAL 31
Sugano, Joel Yutaka; Santos, Antonio Carlos dos.
Given that the fast transformations occurred in national and international scenery point out to a necessity of gain of efficiency to increase in competitiveness to the firms, the environment which into they are and into they develop, assume a vital importance as been the supporter foundation of this development. For this environment can be understood as the process of space concentration of many correlative segments of a production chain, also called as clusterization process, which this special conformation gives to the firms special conditions to develops the superior competitive advantages than the others firms isolated. In this sense, this paper aim to arise how occurs the process of conformation of a big cluster, culminating in satisfaction of ten...
Tipo: Journal Article Palavras-chave: Cluster; Competitiveness; Agribusiness Chain..
Ano: 2000 URL: http://purl.umn.edu/43356
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NETWORKING ON THE UTILIZATION OF LOCAL NATURAL RESOURCES 31
Herbaly-Hekli, Katalin.
Together with its partners, Szolnok College is planning to evaluate a new project for networking on the utilization of local natural resources. This project is based on a research work (using the findings of the surveys completed by the representatives of hosts living in the eastern part of Hungary). The project itself is based on the adaptation of the theory of tourism into practice by presenting existing natural values in the supply portfolio of tourist service providers. A unique natural environment can be found alongside a 120 km-long stretch of River Tisza. These natural values interlink and complete each other with respect to Lake Tisza and River Tisza. Regions and settlements situated further from the specified settlements are also rich in natural...
Tipo: Journal Article Palavras-chave: Networking; Cluster; Register of unique natural values and handicraft/economic activities; Marketing.
Ano: 2011 URL: http://purl.umn.edu/104668
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AGROHOLDINGS AND CLUSTERS IN KAZAKHSTAN’S AGRO-FOOD SECTOR 31
Wandel, Jurgen.
The paper provides an overview of the institutional arrangements on the micro level that have evolved in the agro-food sector of Kazakhstan in the course of transition. Emphasis is laid on more complex arrangements like "agroholdings" and "clusters", hitherto mostly unknown in the agro-food sectors of established market economies. It is shown that "agroholdings" are concentrated mainly in the northern part of Kazakhstan and to a large extent in the grain sector, while in the south a scattered small scale (individual) farm structure has emerged. Parallel to this market-driven development, the Kazakhstani government tries to promote other institutional arrangements that it deems to be of superior competitiveness, especially agro-food clusters. Refering to...
Tipo: Working or Discussion Paper Palavras-chave: Agroholdings; Cluster; Kazakhstan; Agricultural policy; Institutional change; Agroholdings; Cluster; Kasachstan; Agrarpolitik; Institutioneller Wandel.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Farm Management; Industrial Organization; Land Economics/Use; Production Economics; Productivity Analysis; Q13; Q18; L 22.
Ano: 2009 URL: http://purl.umn.edu/91766
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From the help desk: It's all about the sampling 31
McDowell, Allen; Pitblado, Jeffrey S..
Effective estimation and inference, when the data are collected using complex survey designs, requires estimators that fully account for the sampling design. This article explores, by means of Monte Carlo simulations of the power of simple hypothesis tests, the consequences of parameter estimation and inference when naive estimators are employed with survey data.
Tipo: Journal Article Palavras-chave: Cluster; Design; Power; Strata; Svy; Svymean; Svyset; Research Methods/ Statistical Methods.
Ano: 2002 URL: http://purl.umn.edu/115961
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Classification of the EU countries labour markets 31
Kaba, Bohumil.
The objective of the paper is to classify the labour markets of the EU member states on the basis of selected employment and unemployment indicators. In order to achieve the study target, the adequate multivariate exploration procedures have been chosen. In the first part of processing original data, principal component analysis (PCA) was employed. PCA is a multivariate statistical procedure used to reduce the number of observed variables into a smaller number of uncorrelated variables with a minimum loss of information. Moreover, the PCA results can be used for effective ranking of the EU countries according to observed indicators of labour markets. This paper describes the crucial steps in PCA and procedure for ranking mentioned and it reviews how...
Tipo: Journal Article Palavras-chave: Classification; Employment; Unemployment; Principal component analysis; Cluster; International Development; Public Economics; Research Methods/ Statistical Methods; GA; IN.
Ano: 2010 URL: http://purl.umn.edu/99227
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Inovação tecnológica e cooperação entre os atores econômicos no arranjo produtivo local: o exemplo do mamão no Espírito Santo 31
Ney, Vanuza Da Silva Pereira; Ponciano, Niraldo Jose; Zampirolli, Poliana Dare.
O artigo discute a formação e as características de um arranjo produtivo local tendo como base os elementos: cooperação, governança e inovação. Para isso resgata-se na literatura econômica os conceitos teóricos fundamentais de firma, inovação e concorrência, apresentando na última seção o caso do APL do mamão no Espírito Santo como exemplo de cooperação e esforço dos atores econômicos envolvidos no setor para seu fortalecimento e êxito no mercado externo. This article discuss the constitution and the characteristics of a cluster having as its base the elements: cooperation, leadership and innovation. For this, it is reviewed on the economic literature the fundamental theoretical concepts of firm, innovation and competition, presenting at the last section...
Tipo: Conference Paper or Presentation Palavras-chave: Arranjo produtivo; Inovação tecnológica; Mamão; Cluster; Innovation; Papaya; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/103099
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