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| Registros recuperados: 141 | |
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| Kemenyne Horvath, Zsuzsanna. |
| A tanulmány bemutatja a hazai gabona keresletében bekövetkezett vertikális és horizontális átrendeződést és annak hatásait. A kérdőíves megkeresés és a mélyinterjúkból született válaszokat felhasználva, klaszteranalízis segítségével lehetővé vált a felvásárlói oldalon álló szereplők tipizálása, továbbá az áralku döntéseik modellezése. Megállapítható, hogy a gabonapiacon elsősorban a nagy kereskedelmi cégek és holdingok az árvezetők, ami méretükkel, tároló kapacitá-saikkal, logisztikai adottságaikkal és stratégiájukkal magyarázható. A feldolgo-zók (malom, takarmánykeverő, vetőmagos cégek), az integrátorok, kiskereskedők és egyéb cégek árelfogadók a gabonapiacon. Az intervenciós árszint a keresleti oldalon álló szereplők áralkuit, gabonapiaci stratégiáját... |
| Tipo: Journal Article |
Palavras-chave: Gabonapiac; Intervenció; Klaszteranalízis; Keresleti oldal; Áralku; Grain market; Intervention; Cluster analysis; Demand side; Price deal; Agribusiness; Crop Production/Industries; International Relations/Trade; Production Economics. |
| Ano: 2007 |
URL: http://purl.umn.edu/57664 |
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| Fodor, Monika; Gyenge, Balazs; Horvath, Agnes. |
| Tanulmányunkban 1000 fős országos felmérés eredményei alapján azonosítottuk a hazai munkahelyi étkezés fogyasztói szegmenseit. Bebizonyítottuk, hogy a célcsoportok szocio-demográfiai ismérvek mellett az étkezési és élelmezési szokások, a munkahelyi étkezéshez való viszony szerint is eltéréseket mutatnak, amely igazolja, hogy ezen ismérvek befolyásolják az egyént abban, hogy milyen munkahelyi étkezési formát választ. Megállapítható, hogy a munkahelyi étkezés igénybevétele leginkább az időtudatos élelmiszer-fogyasztói magatartással függ össze, de megjelennek a kényelem, a termékminőség és a kiegészítő szolgáltatások iránti fogyasztói elvárások is. Az eredmények segítséget jelenthetnek a piacfejlesztési, piacbővítési lehetőségek definiálásában és a célpiaci... |
| Tipo: Article |
Palavras-chave: Munkahelyi étkezés; Faktoranalízis; Klaszteranalízis; Institutional catering; Factor analysis; Cluster analysis; Consumer/Household Economics; Marketing. |
| Ano: 2011 |
URL: http://purl.umn.edu/119924 |
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| Pereira,Paulo Rodrigo Ramos Xavier; Barcellos,Júlio Otávio Jardim; Federizzi,Luiz Carlos; Lampert,Vinícius do Nascimento; Canozzi,Maria Eugênia Andrighetto; Marques,Pedro Rocha. |
| The objectives of this research were to analyse data on the international market of frozen boneless beef and to classify its participants into groups according to their trade relationships, identifying the main factors that influence the preference of a country to beef from a determined supplier country. International beef trade is composed of two markets: in one of them, the relationships between supplier and client depend on the lowest price, and Brazil is found in favorable conditions; and the other, the relationships are preferably based on the sanitary quality of the herd and traceability systems recognized by the purchaser, to which Brazilian participation is low. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine spongiform encephalopaty (BSE); Cluster analysis; Data mining; Foot and mouth disease; International trade beef. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100028 |
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| Peternelli,Luiz Alexandre; Tomaz,Flávia Sílvia Corrêa; Bernardes,Diego Paiva; Silva,Gilson Fernandes da; Lacerda,Fabricia Gonçalves. |
| This work aims to evaluate the use of parametric models instead of a nonparametric procedure to adjust survival curves related to different treatments, and to verify the equivalence among treatments by the multivariate method of cluster analysis. The dataset used to validate the method was obtained from a laboratory experiment with cutting ants. Eight colonies of cutting ants were used, each one receiving different treatments. The exponential, Weibull, log-normal, and logistic models were adjusted for each treatment, along with the usual Kaplan-Meier adjustment. The logistic model used was the best option for evaluating the survival of the ants. Therefore, this model was adjusted for each treatment. The estimates of the parameters of each adjusted model... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Logrank test; Cluster analysis; Curves comparison. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000900004 |
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| Arrington, Kendra; Dennis, Jennifer H.; Mazzocco, Michael A.. |
| In Spring 2005 and Fall 2009 consumer surveys were collected in several Metropolitan 4 cities in Indiana and Illinois to explore differences based on psychographic and behavioral 5 characteristics of farmers’ market consumers. Consumer intercept surveys were conducted in: 6 South Bend, IN; Bloomington, IN; Springfield, IL and Peoria, IL. Likert scale questions were 7 analyzed using factor and hierarchical cluster analysis to identify clusters of consumers based on 8 several farmers’ market characteristics. Survey results show that of the 164 Metropolitan 9 surveys analyzed, 85.3% of respondents were Caucasian, 71.9% were between the ages of 35 and 10 64 and 78% were female. Data analysis showed that four clusters were formed: Recreational 11 (42%),... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Cluster analysis; Consumers; Farmers’ market; Primary data; Surveys; Agribusiness. |
| Ano: 2010 |
URL: http://purl.umn.edu/93919 |
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| Shrestha, Shailesh; Hennessy, Thia C.. |
| This paper describes a methodology to assess the impact of the decoupling of payments on Irish farms at a regional level. The methodology is based on a farm level dynamic linear programming model which optimises regional gross margin under a set of constraints. Regionally representative farms are selected using cluster analysis. The model maximises aggregate gross margins from all the farm types in a region allowing land and milk quota to transfer between farms within the region. The model is estimated for a baseline scenario, assuming no policy change, and under a decoupled scenario where farm payments are fully decoupled from production. An example of an impact study at the Border region in Ireland is presented in this paper to demonstrate the methodology. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Decoupling; Linear Programming; Cluster analysis; Agricultural policy; Regional level; Agricultural and Food Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/25458 |
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| Morales,Marcelo; Decker,Viviana; Ornella,Leonardo. |
| Over the past three decades, traditional Argentinean Orange Flint maize cultivars have been replaced by the higher yielding U.S. Yellow Dent germplasms. However, fint cultivars are potentially resistant to biotic and/or abiotic stress. Thus, knowledge of genetic diversity and relationships among fint inbred lines would help reduce genetic vulnerability and broaden the genetic base of crops in national improvement programs. In this study, we report the analysis of 25 inbred Orange Flint germplasms and one dent using 21 microsatellite markers or Simple Sequence Repeats (SSR). The aim was to assess genetic diversity among these accessions and evaluate the usefulness of SSR markers for defning heterotic groups in temperate germplasm. Genetic diversity values... |
| Tipo: Journal article |
Palavras-chave: Cluster analysis; Microsatellite; Zea mays. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100015 |
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| Yue,Qingchun; Zhang,Chenfei; Wang,Qinghao; Wang,Wenjing; Wang,Jinyang; Wu,Yueyan. |
| ABSTRACT: The objective of this study is to research the genetic diversity of the ‘ Zuijinxiang ’ grape and its mutant breeding F1 plants, we screened the excellent mutant plants with potential breeding value. 50 mutated single plants obtained from 137Cs-γ irradiated ‘Zuijinxiang’ grape seeds were used as research objects, and SCoT molecular marker technology was used for genetic diversity and variation analysis, and clustering research was carried out. The results showed that: (1) 36 SCoT primers produced abundant polymorphisms, and the amplification results showed obvious bright bands, and the amplification efficiency and polymorphism rate were 100%. (2) A total of 221 bands were amplified by 36 primers, of which 175 were rich in polymorphism, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grape; SCoT markers; Genetic diversity; Cluster analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001100406 |
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| Registros recuperados: 141 | |
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