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| Registros recuperados: 63 | |
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| Lima, Roberto Arruda de Souza. |
| Os resultados preliminares do Censo Agropecuário mostraram que o rebanho ovino no Brasil é menor do que apontavam estudos anteriores. Para compreender esse resultado é necessário, entre outros estudos, verificar a evolução do efetivo no período. O objetivo do presente trabalho foi mensurar a concentração do rebanho ovino no Brasil, nos anos de 1995/96 e 2006. Para tanto, utilizou-se a metodologia do índice T de Theil e da análise tabular dos dados. Os resultados demonstraram redução da concentração do rebanho entre as Unidades da Federação. Apesar de se verificar concentração do rebanho pela análise tabular, esta não foi fortemente caracterizada pelo índice T de Theil, que mensurou a distribuição do rebanho em relação à área das Unidades da Federação.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Ovinocultura; Concentração; Índice T de Theil; Sheep; Concentration; Theil index; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/113999 |
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| Ali,H.H.; Tanveer,A.; Nadeem,M.A.; Javaid,M.M.; Kashif,M.S.; Chadhar,A.R.. |
| Experiments were conducted to evaluate the allelopathic influence of Rhynchosia capitata on germination and seedling growth of mungbean (Vigna radiate) along with identification of the phytotoxic substances responsible for this activity. Water extracts of root, shoot, leaf, fruit and whole plant were prepared by soaking them in water in a ratio of 1:20 (w/v) for 24 h. All the extracts affected germination and seedling growth of mungbean, but higher inhibition was seen with R. capitata leaf water extracts. A linear decrease in the germination characteristics of mungbean was observed with the decrease in the concentration of leaf extract from 5% to 1%. The soil-incorporated residues (1-4% w/w) of R. capitata stimulated the growth of root and hypocotyl at low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytotoxic; Phenolic; Allelopathy; Residues; Concentration; Water extracts. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000300002 |
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| Bosch, Albert; Sanchez, Gloria; Abbaszadegan, Morteza; Carducci, Annalaura; Guix, Susana; Le Guyader, Soizick; Netshikweta, Rembuluwani; Pinto, Rosa M.; Van Der Poel, Wim H. M.; Rutjes, Saskia; Sano, Daisuke; Taylor, Maureen B.; Van Zyl, Walda B.; Rodriguez-lazaro, David; Kovac, Katarina; Sellwood, Jane. |
| Potential ways to address the issues that relate to the techniques for analyzing food and environmental samples for the presence of enteric viruses are discussed. It is not the authors' remit to produce or recommend standard or reference methods but to address specific issues in the analytical procedures. Foods of primary importance are bivalve molluscs, particularly, oysters, clams, and mussels; salad crops such as lettuce, green onions and other greens; and soft fruits such as raspberries and strawberries. All types of water, not only drinking water but also recreational water (fresh, marine, and swimming pool), river water (irrigation water), raw and treated sewage are potential vehicles for virus transmission. Well over 100 different enteric viruses... |
| Tipo: Text |
Palavras-chave: Enteric viruses; Gastroenteritis; Hepatitis; Detection; Concentration. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00031/14191/11465.pdf |
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| Juhasz, Aniko; Seres, Antal; Stauder, Marta. |
| Retail market consolidation and its effects on micro enterprises and corner shops present a long-term challenge to the Hungarian retail grocery market. The authors hope this study will help the concerned parties deal with this challenge. The study is one of the first attempts at a comprehensive analysis, and employs concentration tables and concentration ratios. It is based on a database from all businesses, including partnerships and individual entrepreneurs, and focuses on the quantifiable trends and the magnitude of market concentration regarding retail sales and specific areas affected by the consolidation process. Our research revealed that, by 2004, concentration in the retail food market was at a high level, considerably higher than the overall... |
| Tipo: Journal Article |
Palavras-chave: Grocery retail; Concentration; Micro enterprises; Small grocery (corner) shops; Hungary; Agribusiness. |
| Ano: 2008 |
URL: http://purl.umn.edu/46443 |
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| MARTINS, E. G.; RIBASKI, J.; NEVES, E. J. M.. |
| Avaliou-se, de três a quatro anos de idade, as concentrações de clorofila a, clorofila b clorofila total e, a relação clorofila a/b de quatro diferentes procedências de grevílea (Grevillea robusta Cunn.), nos períodos de verão e inverno, plantadas na Região de Nova Esperança. Os resultados possibilitaram as seguintes conclusões: 1) em média, a grevílea na região de Nova Esperança, apresentou concentrações 30,42% mais elevadas de clorofila a em relação a clorofila b, no verão e concentrações 24,07% mais elevadas de clorofila a em relação a clorofila b, no inverno. 2) em média, a grevílea na região de Nova Esperança, apresentou concentração de 27,34% mais elevada de clorofila total, no verão, quando comparada com o inverno. 3) As procedências australianas... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Concentração; Paraná; Concentration; Espécie exótica.; Grevilha; Produção; Clorofila; Grevillea Robusta.; Chlorophyll.. |
| Ano: 2002 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/306542 |
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| Almeida, Paulo Nazareno Alves; Lima, Roberto Arruda de Souza; Santos, Vinicius Correia; Almeida, Andreia Ferraz Chaves; Shirota, Ricardo. |
| O crédito rural é uma das principais políticas de fomento à agricultura, porém os recursos têm sido distribuídos de forma desigual, privilegiando o Sul e o Sudeste brasileiros. O objetivo do presente trabalho foi mensurar a concentração do crédito agrícola na Bahia, dividido em suas mesorregiões, no período de 1999 a 2003. Para tanto, utilizou-se a metodologia do índice T de Theil e da análise tabular dos dados. Os resultados demonstraram concentração do crédito entre as mesorregiões baianas. Apesar de se verificar concentração do crédito pela análise tabular, esta não foi fortemente caracterizada pelo índice T de Theil, que mensurou a distribuição do crédito em relação ao valor da produção. A despeito da elevação do índice no período analisado,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crédito rural; Concentração; Distribuição; Índice T de Theil; Bahia; Rural credit; Concentration; Distribution; Theil index; Agricultural Finance. |
| Ano: 2008 |
URL: http://purl.umn.edu/108188 |
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| Balti, Rafik; Le Balc'H, Romain; Brodu, Nicolas; Gilbert, Marthe; Le Gouic, Benjamin; Le Gall, Sophie; Sinquin, Corinne; Masse, Anthony. |
| Exopolysaccharides (EPS) from cell-free Porphyridium cruentum media were concentrated then purified (diafiltration) on a 0.14 µm ceramic membrane. The influence of cross-flow velocities on filtration performances was investigated. Mean permeate fluxes equal to 49.8, 68.9 and 81.9 L.h-1. m-2 were obtained during the concentration at 4 bar for respectively cross-flow velocities inside the membrane lumen equal to 2.5, 3.3 and 4.2 m.s-1; 49.7 L.h-1. m-2 for the diafiltration at 3.3 m.s-1. Permeate fluxes were correctly predicted from polysaccharide concentrations (10 % deviation). Volume reduction factors higher than 7.8 were reached. Rejection rates of polysaccharides and proteins varied according to the cross-flow velocities. Thus, the EPS recovery rate or... |
| Tipo: Text |
Palavras-chave: Membrane filtration; Exopolysaccharides; Microalga; Concentration; Diafiltration. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00445/55694/57360.pdf |
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| Juhasz, Aniko; Stauder, Marta. |
| The paper is a summary about the Hungarian retail sector based on the results of different research projects completed in the last five years. From all of these studies and of course the wide ranging domestic and international literature we had to conclude that the retailers have become more and more the exclusive owner of the information about the consumers and with this they become the new "captains" of the food chain. Thus we always started our research with gathering information about the situation of the Hungarian retail sector because we believed if we want to help those who try to adapt (the suppliers) then we have to know much more about those who dictate (the retailers). Analysing the concentration in company and not branch level we can say that... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food retailing; Concentration; Market structure; Supplier-retailer relationships; Industrial Organization; D3; L81. |
| Ano: 2006 |
URL: http://purl.umn.edu/25766 |
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| Kurti, Andrea; Kozak, Anita; Seres, Antal. |
| This study examines the conflicts arising from the requirements of the food retail chains and their possible solutions, based on an analysis of the foreign and domestic trade literature and on a domestic assessment of 2008. Direct supplies from small-scale producers have future prospects only in the field of niche market products. Only production organisations integrating small-scale producers may be successful in the supply of large quantity products of homogeneous quality. In Hungary, similar organisations – principally POs – still do not have a role comparable to that they fulfil in more developed countries of the European Union in the field of the supplies to the food retail chains. For increasing supplies, the domestic small-scale producers should... |
| Tipo: Journal Article |
Palavras-chave: Concentration; Food retail chains; Supply; Small-scale producers; Fruits and vegetables; International Relations/Trade. |
| Ano: 2010 |
URL: http://purl.umn.edu/59047 |
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| Registros recuperados: 63 | |
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