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BoWFire: detection of fire in still images by integrating pixel color and texture analysis
No full textEmergency events involving fire are potentially harmful, demanding a fast and precise decision making. The use of crowdsourcing image and videos on crisis management systems can aid in these situations by providing more information than verbal/textual descriptions. Due to the usual high volume of data, automatic solutions need to discard non-relevant content without losing relevant information. There are several methods for fire detection on video using color-based models. However, they are not adequate for still image processing, because they can suffer on high false-positive results. These methods also suffer from parameters with little physical meaning, which makes fine tuning a difficult task. In this context, we propose a novel fire detection method for still images that uses classification based on color features combined with texture classification on superpixel regions. Our method uses a reduced number of parameters if compared to previous works, easing the process of fine tuning the method. Results show the effectiveness of our method of reducing false-positives while its precision remains compatible with the state-of-the-art methods.FAPESPCNPqCAPESSTIC-AmSudRESCUER Project, funded by the European Commission (Grant: 614154) and by the CNPq/MCTI (Grant: 490084/2013-3
Efficacy of acupuncture and electroacupuncture in patients with nonspecific low back pain: study protocol for a randomized controlled trial
No full textAbstract\ud
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Background\ud
Previous studies have shown that acupuncture and electroacupuncture (EA) are effective in the treatment of patients with low back pain. However, there is little evidence to support the use of one intervention over the other. The aim of this study is to compare the effect of acupuncture and electroacupuncture in the treatment of pain and disability in patients with chronic nonspecific low back pain.\ud
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Methods/design\ud
The study design is a randomized controlled trial. Patients with nonspecific chronic low back pain of more than three months duration are recruited at Rehabilitation Center of Taboao da Serra - SP (Brazil). After examination, sixty-six patients will be randomized into one of two groups: acupuncture group (AG) (n = 33) and electroacupuncture group (EG) (n = 33). Interventions will last one hour, and will happen twice a week for 6 weeks. The primary clinical outcomes will be pain intensity as measured and functional disability. Secondary outcomes: quality of pain, quality of life. perception of the overall effect, depressive state, flexibility and kinesiophobia. All the outcomes will be assessed will be assessed at baseline, at treatment end, and three months after treatment end. Significance level will be determined at the 5 % level. Results of this trial will help clarify the value of acupuncture and electroacupuncture as a treatment for chronic low back pain and if they are different.\ud
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Discussion\ud
Results of this trial will help clarify the value of acupuncture needling and electroacupuncture stimulation of specific points on the body as a treatment for chronic low back pain.\ud
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Trial Registration\ud
Clinicaltrials.gov: \ud
NCT02039037\ud
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. Register October 30, 2013.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-(CAPES
Rome and its provinces
No full textMônica Teixeira conversa com a historiadora Maria Isabel Fleming, Coordenadora do Laboratório de Arqueologia Romana Provincial - LARP do Museu de Arqueologia e Etnologia da USP, sobre o Império Romano e suas províncias. A professora critica a visão historiográfica tradicional centro-europeia de um Império Romano homogêneo em todo o seu território, que busca criar uma identidade nacional a partir de uma leitura conveniente e manipuladora de textos clássicos sobre Roma
Study of properties fo application of nanocomposites obttained from disposable cups polystyrene as a matrix and sodic bentonite and calcium sulfate hemihydrate as a charge
No full textNeste trabalho filmes de nanocompositos foram gerados, por casting, a partir de copos descartáveis de poliestireno, com bentonita sódica comercial e hemi-idrato de sulfato de cálcio. Após serem produzidos, ensaiados e analisados foram triturados e passaram por ciclos térmicos de extrusão e injeção onde foram gerados pellets e corpos de prova que forma submetidos aos ensaios de índice de fluidez, tração, flexão e impacto, além da investigação microestrutural por microscopia eletrônica de varredura
Economical control chart with supplementary rules to monitor the average number of defects
No full textThis study proposes a procedure for an on-line process control system to monitor the average number of defects using a Shewhart-like chart with two sets of limits (viz., control and warning limits). After the production of m units, the mth item is inspected. If the number of defects exceeds the upper control limit or if, in a sequence of the last h inspections, all inspected items exhibit a number of defects between the warning and control limits, then the process is stopped for adjustment; otherwise, production continues. The properties of an ergodic Markov chain are used to obtain an expression for the average cost per item produced. The inspection interval (m), warning and control limits (W and C, respectively), and the sequence size (h) are determined by minimizing the average cost per produced item. A numerical example illustrates the proposed procedur
Photodegradation of composite obtained by the addition of colloidal silicon dioxide in the blend PBA/PLA
No full textEste trabalho tem por objetivo avaliar o efeito da silica coloidal no processo de fodegradação da blenda de poli (adipta de butileno-co-tereflato de butileno)/poli (ácido láctico) - PBAT/PLA . Os compósitos de PBA/PLA com adição de sílica coloidal com composições de 5% e 10% em massa de silica foram obtidos pelo método de intercalação no polímero fundido em uma extrusora de dupla rosca. as amostras foram expostas à radiação UV por tempos de até 40 dias e caracterização por análises de espectroscopia vibracional de absorção no infravermelho (FTIR)
Recycling probes from hospital waste through electrospinning
No full textEm 2013, O BRasil descartou 252 mil toneladas de resíduos dos serviços de saúde, conforme a Associação Brasileira de Limpeza Públicas e Resíduos Especiais (ABRELPE) . Segundo a ABRELPE, cerca de 40% dos resíduos são descartados de modo inapropriado. A Política Nacional dos Resíduos Sólidos (2010) e os Planos de Gerenciamentosdos Resíduos dos Municipios, estados r União (2012-2014) prevem o fim da disposição inadequada dos rsíduos. Além disso, estimula o desenvolvimento de pesquisas que visem aumentar os procedimentos de redução, reutilização, reciclagem e tratamento dos resíduos sólidos em geral
Supporting multiple persistence models for PaaS applications using MDE: issues on cloud portability
No full textIn cloud computing, lock-in refers to the difficulty of porting an application from one platform to another. An example of such difficulty can be witnessed when porting an application from Platform-as-a-Service Google App Engine to Microsoft Azure. Differences in their implementations are substantial, yielding non-portable applications. Standardization could address this problem, but existing initiatives are still to be accepted. This paper addresses lock-in by proposing a model-driven engineering design approach that decouples platform specific code from the application logic. The resulting platform-independent models, as well as corresponding model transformations, can be reused to generate distinct platform-specific implementations, hence reducing the programming effort spent coding repetitive tasks. Such transformations can be made available for reuse on a repository for cloud providers. We have implemented transformations to handle persistence for Google App Engine and Azure, and discuss how model-driven engineering can reconcile the differences between features of the persistence models of GAE and Azure.FAPESP (processes 2012/24487-3 and 2012/04549-4)Coordination of Superior Level Staff Improvement - CAPESBrazil-Europe Erasmus Mundus project (process BM13DM0002
Quando trabalhar é ser protagonista e o protagonismo do trabalho
No full textEste livro discute sobre a importância para os sujeitos oriunda do seu trabalho e ado seu trabalho para a produção e para a sociedade. Partindo dos pressupostosda ergonomia da atividade e da psicodinâmica do trabalho, o conceito deprotagonista é proposto como parte do diálogo histórico entre essas disciplinase do debate com outras áreas do conhecimento, principalmente aquelas que tratamdo projeto e da gestão da produção e do trabalho. Apoiado em resultados de estudos e pesquisasdesenvolvidas nos últimos 30 anos, o tema central desta tese é abordado ediscutido à luz das disciplinas citadas visando não apenas trazer umacontribuição para o conhecimentos nos campos direta e indiretamente envolvidoscom o tema, mas de trazer reflexões sobre a possibilidade de se construir açõestransformadoras que favoreçam a construção da saúde e a realização de si. Agirno mundo visando a emancipação dos sujeitos e o desenvolvimento da cultura é umdos grandes desafios que se coloca
The origin and evolution of queen and fertility signals in Corbiculate bees
No full textAbstract\ud
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Background\ud
In social Hymenoptera (ants, bees and wasps), various chemical compounds present on the cuticle have been shown to act as fertility signals. In addition, specific queen-characteristic hydrocarbons have been implicated as sterility-inducing queen signals in ants, wasps and bumblebees. In Corbiculate bees, however, the chemical nature of queen-characteristic and fertility-linked compounds appears to be more diverse than in ants and wasps. Moreover, it remains unknown how queen signals evolved across this group and how they might have been co-opted from fertility signals in solitary ancestors.\ud
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Results\ud
Here, we perform a phylogenetic analysis of fertility-linked compounds across 16 species of solitary and eusocial bee species, comprising both literature data as well as new primary data from a key solitary outgroup species, the oil-collecting bee Centris analis, and the highly eusocial stingless bee Scaptotrigona depilis. Our results demonstrate the presence of fertility-linked compounds belonging to 12 different chemical classes. In addition, we find that some classes of compounds (linear and branched alkanes, alkenes, esters and fatty acids) were already present as fertility-linked signals in the solitary ancestors of Corbiculate bees, while others appear to be specific to certain species.\ud
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Conclusion\ud
Overall, our results suggest that queen signals in Corbiculate bees are likely derived from ancestral fertility-linked compounds present in solitary bees that lacked reproductive castes. These original fertility-linked cues or signals could have been produced either as a by-product of ovarian activation or could have served other communicative purposes, such as in mate recognition or the regulation of egg-laying.RCO and CAO were supported by scholarships from CNPq-Brazil (238127/2012-5\ud
and 201959/2012-7). RCO was supported by FWO (international mobility\ud
V406714N). TW was supported by FWO and the KU Leuven Centre of Excellence\ud
PF/2010/007, DAA was supported by FAPESP (2010/19717-4) and PNPD-CAPES.\ud
TW and FN were supported by CNPq-Brazil (402661/2012-5). Special thanks to\ud
Jelle van Zweden for the valuable comments and insights and to Prof. Jocelyn\ud
Millar for providing us the synthetic aldehyde standards and for helping with the\ud
chemical compounds identification