Objective: The goal of this research was to analyze the socioeconomic and environmental factors that define technological transition in microregion Altamira. Theoretical framework: Cocoa (Theobroma cacao L.) farming agroforestry systems (AFS), which have always been structuring base production chain, now combined with monoculture system also called full-sun cocoa system. good practices used differ from perspective sustainable development: AFS operates social dimensions economic dimensions....

The microblogging service Twitter is one of the world's most popular online social networks and assembles a huge amount data produced by interactions between users. A careful analysis this allows identifying groups users who share similar traits, opinions, preferences. We call community detection process user group identification, which grants valuable insights not available upfront. In order to extract useful knowledge from many methodologies have been proposed, define attributes be used in...

Objetivo: Construir modelos econométricos para identificar e analisar as variáveis ​​que definem explicam o ciclo do desmatamento na Amazônia. Teórico referencial: A floresta é uma das principais fontes de sequestro armazenamento carbono da Terra. Logo queima florestas tropicais aumentar impacto efeito estufa nas mudanças climáticas, em função emissões CO 2 . Resultados conclusão: O incremento anual área desmatada Amazônia segue um comportamento polinomial explicado pelas relações troca...

O objetivo da pesquisa foi o analisar mercado de madeira em tora cinco mesorregiões do estado Pará, no período 2000 a 2015, determinar influência desmatamento sobre regulação e estimar valor monetário atividade florestal madeireira. Aplicou-se um modelo na forma dados painel os parâmetros das equações demanda oferta foram estimados pelo método dos momentos generalizados. Os resultados indicaram que são inelásticas preço significativamente influenciadas desmatamento. impacto positivo...

Objective: The objective of the study was to estimate participation economic, social and environmental forces in formation production costs product prices. Theoretical Framework: theory innovated by including opportunity ecosystem services optimize effects information asymmetry on Socio-environmental Hedonic Prices (SHP) efficiency managing açaí, tucumã, murumuru andiroba value chains negotiated agro-extractive cooperatives Amazon. Method: methodology defined a cost function support...

Online Social networking (OSN) platforms such as Facebook, daily have a massive number of users and content being created. Users services the power to share opinions influence others. This creates an interesting scenario, where brands institutions can digital presence interact directly with their target audience. Universities around world are also using those for reaching out students staff, acting new channel public relations. Customer Relationship Management (SCRM) principles be applied in...

The state of Pará has the largest deforested and degraded area in Amazon, a result from expansion extensive livestock, projects rural settlement Agrarian Reform, mining, timber extraction, hydroelectric power plants pressure large urban centers for food. Reversing deforestation soil degradation can thrive with adoption appropriate technologies systems higher productivity bioeconomic efficiency, social inclusion, less impact on environment. Agroforestry System, formed by combination acai,...

O objetivo deste trabalho foi estimar o valor econômico e a margem de comercialização da madeira em tora oriunda áreas manejadas. Essa cadeia, além produzir positiva, os valores são relativamente superiores aos gerados nas atividades que concorrem para desmatamento na Amazônia se estabelecerem. Adicionalmente, determinou-se coeficiente médio desdobramento 37,3% (2,68 m³ cada 1,0 serrada), qual revelou baixo grau tecnológico das empresas. extração pé no mercado local R$ 23,48/m³, tendo um...

In this paper, an unsupervised artificial neural network was implemented to identify the patters of specific signatures. The based on differential expression miRNAs (under or over expression) found in healthy cancerous gastric tissues. Among tissues analyzes, evaluated 514 tissue that exhibited significant expression. result suggested a signature nine (hsa-mir-21, hsa-mir-29a, hsa-mir-29c, hsa-mir-148a, hsa-mir-141, hsa-let-7b, hsa-mir-31, hsa-mir-451, and hsa-mir-192), all with values...

O açaí é um dos principais alimentos da população paraense e de maior consumo per capita em 2010. A venda Belém realizada por diversas unidades que operam no mercado varejista. objetivo deste trabalho foi identificar os segmentos mercado: quitandas, microempreendedores supermercados, a partir análise conjunto variáveis definem as decisões consumidores açaí. Utilizou-se do método stepwise discriminante múltipla para estimar funções discriminantes. Os resultados mostram o segmento identificado...

Open refrigeration showcases are commonly utilized equipment in super markets and convenience stores to maintain the temperature quality of foods drinks. Often set a broader arrangement, where number outdoor condensers connected, it is system that remains susceptible fault events, which can lead financial losses for stores. Therefore, faults early abnormal behaviors future problems should be identified. To classify events as in-control faulty, samples or patterns both types needed, however,...

Missing data is a prevalent problem that requires attention, as most analysis techniques are unable to handle it. This particularly critical in Multi-Label Classification (MLC), where only few studies have investigated missing this application domain. MLC differs from Single-Label (SLC) by allowing an instance be associated with multiple classes. Movie classification didactic example since it can “drama” and “bibliography” simultaneously. One of the usual treatment methods imputation, which...

Influência do desmatamento

Data analysis plays an important role in our Information Era; however, most of statistical and machine learning algorithms were not developed to tackle the ubiquitous issue missing values. In pattern classification, several strategies have been proposed handle this problem, where data imputation is used one, which can be viewed as optimization problem goal reduce bias imposed by absence information. Although methods are restricted one type variable only (categorical or numerical), they...

O estudo avaliou a percepção da população região de Carajás sobre influência exploração dos recursos naturais, envolvendo desmatamento e queimadas, urbanização, alteração no clima preservação Floresta Nacional economia o bem-estar local. Aplicou-se análise multivariada para associar um conjunto amplo variáveis na definição indicadores representativos das dimensões ambiental ecológica. Os resultados indicaram que mais 80% pessoas entrevistadas afirmaram ter conhecimento importância Flona...