19 research outputs found
Mesenchymal stem cell infusion on skin wound healing of dexamethasone immunosuppressed wistar rats
Effect of skilled and unskilled training on nerve regeneration and functional recovery
Sistema de grupos sanguĂneos AB em felĂdeos neotropicais e compatibilidade com gatos domĂ©sticos
RESUMO O principal sistema de grupos sanguĂneos reconhecido para gatos Ă© o AB. Os felinos apresentam anticorpos naturais contra o antĂgeno do tipo sanguĂneo a que nĂŁo pertencem, o que torna os testes de compatibilidade e as tipagens sanguĂneas importantes na prevenção de reações transfusionais. O objetivo deste estudo foi realizar a tipagem sanguĂnea de oito gatos-mouriscos (Puma yagouaroundi), oito jaguatiricas (Leopardus pardalis), sete gatos-palheiros (Leopardus colocolo), sete gatos domĂ©sticos (Felis catus) da raça Persa e oito gatos domĂ©sticos sem raça definida (SRD), bem como realizar testes de compatibilidade entre os tipos sanguĂneos iguais das diferentes espĂ©cies, para avaliar a possibilidade de transfusões interespecĂficas. A tĂ©cnica empregada para a tipagem foi a hemaglutinação em tubos de ensaio. A ocorrĂŞncia do tipo sanguĂneo tipo A foi de 100% entre as jaguatiricas, os gatos-palheiros e os gatos Persas e de 85,72% entre os gatos SRD. A ocorrĂŞncia do tipo B foi de 100% nos gatos-mouriscos e de 14,28% nos gatos SRD. Considerando os testes de compatibilidade sanguĂnea, 87,5% (n=4) das jaguatiricas foram incompatĂveis com os gatos domĂ©sticos, 100% (n= 6) dos gatos-palheiros foram compatĂveis com os gatos domĂ©sticos e 100% (n= 4) dos gatos-mouriscos foram incompatĂveis com os gatos domĂ©sticos do tipo B
A Multi-agent System Implementation of an Evolutionary Approach to Production Scheduling
Straining and relaxation properties of wet paper during heating
The influence of increasing temperature on the strength and relaxation of wet press-dry paper was studied using a tensile tester equipped with a special heating chamber. The heating chamber made fast heating possible without detectable moisture loss. The results showed that temperature had a significant influence on the straining, relaxation and re-straining behavior of wet paper. The majority of observed changes due to increased temperature seem to originate from the softening of wet fibers. The observed short time scale phenomena in wet paper have practical significance for fiber webs dried under tension in paper machines. Straining–relaxation–de-straining cycles were used to analyze the effect of heating on the work of straining and apparent plastic and elastic work. Heating affected the amount of mechanical energy absorbed by the sample and the amount of elastic energy recoverable in a straining–relaxation–de-straining cycle. Increased temperature reduced the work of straining and both elastically and plastically absorbed energy. The hysteresis work of the examined wet papers was estimated to correspond to a 1–22 mK temperature change. This suggests that temperature changes in wet paper induced by straining play no role in practice. After mechanical conditioning, tensile stiffness in the re-straining of wet paper depended only marginally on temperature, whereas in initial straining the effect of temperature was clearly stronger. The linear thermal expansion coefficient of wet paper in the machine direction was estimated and the influence of moisture content on the linear thermal expansion coefficient of paper was found to be relatively small