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Influência da lesão condral na concentração de glicosaminoglicanas sulfatadas no líquido sinovial
(Universidade Federal de São Carlos, 2006-02-28) Cintra Neto, Paulo Felix de Araujo; Rosa, Stela Márcia Mattiello Gonçalves; https://lattes.cnpq.br/1406279816228350
Objective. To evaluate the influence of sulfated glycosaminoglycan (GAG) concentration in synovial fluid from individuals with chondral injuries, either isolated or associated with anterior cruciate ligament injury or meniscal injury, and check for an association between time since injury and the degree of chondral injury. Material and Method. Twenty-nine adult subjects (25 men and 4 women, mean age 38.3 ± 10.9 years) were selected. Samples obtained from all subjects were quantified to determine the GAG concentration using dimethylmethylene blue dye. The degree of chondral damage was macroscopically evaluated by arthroscopy and rated according to the International Cartilage Repair Society (ICRS) classification. Results. Significant differences were found concerning the GAG concentration in the control group compared with the other groups (p<0.05). No significant differences were found between the studied groups concerning time since injury and degree of chondral damage according to the ICRS. A strong correlation was found between GAG concentration and time since injury in the chondral injury group (r= -1). Conclusion. Damage to articular structures seems to be the determining factor in the change of synovial fluid GAG concentration, being higher in isolated chondral injury. When associated with anterior cruciate ligament rupture and/or meniscal injury, it will promote a tendency to fall, and is not related to sex, age, time since injury and degree of chondral injury in all groups studied.
Estimativa da infiltração e do afluxo devidos à precipitação na rede de esgoto sanitário em município de pequeno porte
(Universidade Federal de São Carlos, 2006-02-28) Festi, Aparecido Vanderlei; Barbassa, Ademir Paceli; https://lattes.cnpq.br/2979012440240781
The main purpose of this work was to identify and to estimate the rainfall derived infiltration and inflow (IADP) into the sewer in a small city and to do an analysis of their influence on this collection system. This work was composed by field measurements on the sewage flowrate output and volume arriving to the Sewage Pumping Plant Station, simultaneously to the collection and measurement of rainfall on the corresponding same urban watershed area of the Borborema, in São Paulo State. The existing methodologies were divided in the follow steps: choosing and characterization of the working field; data collection of the sewage volume and flowrate; collection of the rainfall data; choosing and characterization of the data collected; employment of existing models and methodologies useful to the present available data, in order to derive the underground water infiltration rate and the overflow occurring in the sewage colletion network. The volumetric and percentile IADP were quantified. The constant unitary rate (TUC) was also estimated, by several ways. The results allowed obtaining mathematical formulations to derive the IADP and TUC of the Borborema s sewage network. Such mathematical formulations are suitable to be applied in urban areas of cities of a similar to that of Borborema. It was estimated that the IADP can generate flowrates 2,5 times greater than the sewage flows in dry weather and infiltration rates in the sewage network similar to those adopted for system design. The work allowed to estimate how complex are the infiltration and inflow of stormwater in the sewer network. The methodologies applied were quite simple and may be easily applied in other cities.