A presença de aditivos incorporadores de ar (AIA) em suspensões cimentícias torna esses materiais sensíveis às etapas de processamento e às condições ambientais de preparo das composições. Diversos estudos têm sido reportados em literatura avaliando o efeito de incorporadores de ar nas propriedades de materiais cimentícios, sobretudo no estado endurecido. Porém o efeito da temperatura na incorporação de ar e nas propriedades reológicas dessas composições tem sido menos investigado, sendo este o objetivo do presente trabalho. Para tanto, foram avaliadas as características de pastas cimentícias, compostas por cimentos CPIIF ou CPIIE e dois tipos de AIA, em função da variação da temperatura. O conceito de viscosidade cinemática foi adotado na análise dos resultados para compensar diferenças de inércia das pastas com densidades distintas. Os resultados mostraram que o tipo de cimento, a presença do aditivo e a temperatura influenciaram significativamente na incorporação de ar e nas propriedades reológicas.

Air-entrained admixtures (AEA) makes the cementitious pastes very sensitive to the mix process, environmental conditions and, consequently modifies the final properties. Many studies have been found in literature evaluating the AEA effect on the material properties, mainly in the hardened state. However, the temperature effect in the air incorporation and rheological properties have been less investigated, and this has been the objective of our work. The properties of cementitious pastes formulated with CPIIE or CPIIF and different air-entrained admixtures were evaluated in distinct temperatures. Furthermore, the concept of kinematic viscosity was used in the analysis of the results to compensate the differences in the inertia of cement pastes with different densities. The results shown that the cement type, the additive presence and the temperature significantly affects the air incorporation and the rheological properties.

Aim: To correlate the sagittal abdominal diameter (SAD) and waist circumference (WC) with metabolic syndrome-associated abnormalities in adults. Methods: This cross-sectional study included onehundred twelve adults (M = 27, F = 85) aging 54.0 ± 11.2 yrs and average body mass index (BMI) of 30.5 ± 9.0 kg/m². The assessment included blood pressure, plasma and anthropometric measurements. Results: In both men and female, SAD and WC were associated positively with body fat% (r = 0.53 vs r = 0.55), uric acid (r = 0.45 vs r = 0.45), us-PCR (r = 0.50 vs r = 0.44), insulin (r = 0.89 vs r = 0.75), insulin resistance HOMA-IR (r = 0.86 vs r = 0.65), LDL-ox (r = 0.51 vs r = 0.28), GGT (r = 0.70 vs r = 0.61), and diastolic blood pressure (r = 0.35 vs r = 0.33), and negatively with insulin sensibility QUICKI (r = -0.89 vs r = -0.82) and total cholesterol/TG ratio (r = -0.40 vs r = -0.22). Glycemia, TG, and HDL-c were associated significantly only with SAD (r = 0.31; r = 39, r = -0.43, respectively). Conclusion: Though the SAD and WC were associated with numerous metabolic abnormalities, only SAD correlated with dyslipidemia (TG and HDL-c) and hyperglycemia (glycemia).

Objetivo: Correlacionar el diámetro abdominal sagital (DAS) y la circunferencia de la cintura (CC) con las anomalías asociadas al síndrome metabólico en adultos. Métodos: Este estudio transversal incluyó a 112 adultos (H = 27, M = 85) con edad de 54,0 ± 11,2 años y un promedio de índice de masa corporal (IMC) de 30,5 ± 9,0 kg/m². La evaluación incluía la presión sanguínea y medidas plasmáticas y antropométricas. Resultados: Tanto en hombres como mujeres, DAS y CC se asociaban positivamente con el % grasa corporal (r = 0,53 vs r = 0,55), el ácido úrico (r = 0,45 vs r = 0,45), la us-PCR (r = 0,50 vs r = 0,44), la insulina (r = 0,89 vs r = 0,75), la resistencia a la insulina HOMA-IR (r = 0,86 vs r = 0,65), la LDL-ox (r = 0,51 vs r = 0,28), GGT (r = 0,70 vs r = 0,61), y la presión sanguínea diastólica (r = 0,35 vs r = 0,33), y negativamente con la sensibilidad a la insulina QUICKI (r = -0,89 vs r = -0,82) y el cociente colesterol total/TG (r = -0,40 vs r = -0,22). La glucemia, los TG, y la HDL-c se asociaban significativamente sólo con DAS (r = 0,31; r = 0,39, r = -0,43, respectivamente). Conclusión: Aunque DAS y CC se asociaban con numerosas anomalías metabólicas, sólo DAS se correlacionaba con la dislipemia (TG y HDL-c) y la hiperglucemia (glucemia).

During routine investigations, we are surprised to find that therapy for bone metastases is sometimes delayed for a considerable period of time. To determine the extent of this delay and its causes, we reviewed the medical records of symptomatic patients seen at our hospital who had been recently diagnosed as having bone metastases for the last four years. The treatment delay was defined as the interval between presentation with symptoms and definitive treatment for bone metastases. The diagnostic delay was defined as the interval between presentation with symptoms and diagnosis of bone metastases. The results of diagnostic radiological examinations were also reviewed for errors. The study population included 76 males and 34 females with a median age of 66 years. Most bone metastases were diagnosed radiologically. Over 75% of patients were treated with radiotherapy. The treatment delay ranged from 2 to 307 days, with a mean of 53.3 days. In 490 radiological studies reviewed, we identified 166 (33.9%) errors concerning 62 (56.4%) patients. The diagnostic delay was significantly longer for patients with radiological errors than for patients without radiological errors (P < 0.001), and much of it was due to radiological errors. In conclusion, the treatment delay in patients with symptomatic bone metastases was much longer than expected, and much of it was caused by radiological errors. Considerable efforts should therefore be made to more carefully examine the radiological studies in order to ensure prompt treatment of bone metastases.