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Registros recuperados: 40 | |
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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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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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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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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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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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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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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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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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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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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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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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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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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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Registros recuperados: 40 | |
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