3 research outputs found
LEVANTA, SACODE A POEIRA E DÁ A VOLTA POR CIMA!
RESUMO: O presente estudo tem como objetivo descrever um caso para ensino, relacionado às teorias sobre Visão Baseada em Recursos (RBV), vantagem competitiva, processos de formulação de estratégias, posicionamento mercadológico e estratégias de Marketing. O caso trata sobre uma iniciativa da administração pública de Chapecó, no ano de 2003, quando iniciaram as tratativas entre 17 municípios da região Oeste de Santa Catarina e o Programa Nacional de Fortalecimento da Agricultura Familiar (PRONAF), para a fundação do Mercado Público Regional. Ele foi criado com o objetivo de oferecer um espaço de comercialização, no varejo da cidade de Chapecó, e servir como entreposto para negociação de produtos agrícolas e agroindustriais dos agricultores familiares da região Oeste, visando agregação de valor aos produtos. Porém, o empreendimento não cumpriu com o seu propósito, esbarrando em vários entraves, como: falta de posicionamento perante o mercado; barreiras sanitárias dos produtos comercializados; deficiências na divulgação e problemas de logística para abastecimento. Hoje o Mercado Público Regional tem um fluxo comercial aquém do esperado e é praticamente desconhecido da população de Chapecó. Como resultado, este estudo proporciona relevante produção de conhecimento levando os alunos de cursos de graduação em Administração a vivenciar situações reais, como se estivessem no lugar dos gestores do empreendimento
Seizure states identification in experimental epilepsy using gabor atom analysis
Background: Epileptic seizures evolve through several states, and in the process the brain signals may change dramatically. Signals from different states share similar features, making it difficult to distinguish them from a time series; the goal of this work is to build a classifier capable of identifying seizure statesbased on time frequency features taken from short signal segments.Methods: There are different amounts of frequency components within each Time Frequency window foreach seizure state, referred to as the Gabor atom density. Taking short signal segments from the differentstates and decomposing them into their atoms, the present paper suggests that is possible to identifyeach seizure state based on the Gabor atom density. The brain signals used in this work were taken for a database of intracranial recorded seizures from the Kindling model.Results: The findings suggest that short signal segments have enough information to be used to derivea classifier able to identify the seizure states with reasonable confidence, particularly when used withseizures from the same subject. Achieving average sensitivity values between 0.82 and 0.97, and areaunder the curve values between 0.5 and 0.9.
Conclusions: The experimental results suggest that seizure states can be revealed by the Gabor atom density; and combining this feature with the epoch s energy produces an improved classifier. These results are comparable with the recently published on state identification. In addition, considering that the order of seizure states is unlikely to change, these results are promising for automatic seizure state classification.Thanks are extended to the Hospital Universitario de Valencia, for sharing their signal database and to Francisco Sancho for his support. Finally, thanks are given to Dr. Luis N. Coria for his support and the proofreading support. Partial funding for this work was provided by CONACYT Basic Science Research Project No. 178323, DGEST (Mexico) Research Projects No. 5149.13-P, 5414.14-P and TIJ-ING-2012-110, and IRSES project ACoBSEC financed by the European Commission.Sotelo Orozco, A.; Guijarro Estelles, ED.; Trujillo, L. (2015). Seizure states identification in experimental epilepsy using gabor atom analysis. Journal of Neuroscience Methods. 241:121-131. https://doi.org/10.1016/j.jneumeth.2014.12.001S12113124
Zoonotic Transmission of <i>Blastocystis</i> Subtype 1 among People in Eastern Communities of Thailand: Organic Fertilizer from Pig Feces as a Potential Source
Blastocystis
sp. remains a public health problem among people, particularly in rural areas of many developing countries. The infection usually reflects poor sanitation in communities by waterborne, zoonotic, and person-to-person transmission.
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