Faculdade de Engenharia de Computação e Telecomunicação - FCT/ITEC
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/6283
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Navegando Faculdade de Engenharia de Computação e Telecomunicação - FCT/ITEC por Autor "SANTOS, Marcos Antônio Souza dos"
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Item Acesso aberto (Open Access) Análise discriminante múltipla do mercado varejista de açaí em Belém do Pará(Universidade Federal do Pará, 2014-09) SANTANA, Antônio Cordeiro de; SANTANA, Ádamo Lima de; SANTANA, Ádina Lima de; SANTOS, Marcos Antônio Souza dos; MARTINS, Cyntia MeirelesAçaí pulp is one of the main foods in the State of Pará and of higher per capita consumption in 2010. The sale of açaí in Belém is carried out by several units that operate in the retail market. The objective of this study was to identify market segments: greengrocers, micro entrepreneurs and supermarkets, from the analysis of a set of variables that define the decisions of açaí consumers. The stepwise multiple discriminant analysis was used to estimate the discriminant functions. Results show that the segment identified with greater precision was the greengrocery, with 100%, followed by supermarkets, with 96.5% of the cases accurately classified, and the segment of micro entrepreneurs, with 90.9%, had the lowest accuracy in the consumer classification. The estimated model showed a high significance in the estimation process, since the functions with the variables amount of açaí, consumer income, price of açaí, quality of açaí, price of fish and price of flour, correctly classified 95.6% of the original elements.Item Acesso aberto (Open Access) O valor econômico da extração manejada de madeira no baixo Amazonas, estado do Pará(2012-06) SANTANA, Antônio Cordeiro de; SANTOS, Marcos Antônio Souza dos; SANTANA, Ádamo Lima de; YARED, Jorge Alberto GazelThe objective of this study was to estimate the economic value and the trade margin of roundwood from managed areas. Besides generating a positive margin values, they are relatively higher In this chain than those generated in activities contributing to deforestation in the Amazon. Additionally, the unfolding mean rate of 37.3% was achieved (2.68 m3 of logs for each 1.0 m3 of sawn timber), which revealed a low technological level of companies. At the lower Amazon, the average economic value from the extraction and sale of standing timber in the local market was R$ 23.48/m3, with a minimum value of R$ 9.06/m3 for the species in category C4 (softwood) and a maximum of R$ 55.63/m3 for the species of category C1 (special wood). Thus, considering an extraction flow of 30 years and assuming the extraction of 25 m3/ha in management designs of forest areas from concession contracts in the state of Pará, it is generate an average economic value of R$ 587.00/ha or R$ 19.56/ha/year, which is relatively higher than the profit generated by the activities of extensive livestock (around R$ 180.00 per hectare or R$ 6.00/ha/year) and grain crops (approximately R$ 420.00 per hectare or R$ 14.00/ha/year), which are the main responsibles for deforestation in the Amazon. It also presents a higher profitability than the reforesting with Paricá, whose income is R$ 192.26/ha or R$ 7.12/ha/year. The marketing margin showed that society tends to appropriate of 14.30% of the economic value generated in the wood chain from the transition contracts.