The Anatomy of Uhuru

https://digitalcommons.cedarville.edu/lanning_documents/1035/thumbnail.jp

Kinetic Measurements on Alkylammonium Halides

Chemical relaxation measurements are reported on alkylammonium halides having carbon atoms in the alkyl chain from 10 to 16. Two relaxation times were observed for most of the studied systems. Data are interpreted on the basis of a theory recently developed by G. Aniansson and S. Wall. According to this theory, the fast process is due to a shift of the micellar distribution curve. The residence time of a detergent molecule in the micelle and the half width of the micellar distribution curve are obtained from the fast process. The slow relaxation process is characteristic for the change of the concentration of micelles and permits the evaluation of the concentration of the micellar nuclei and their thermodynamic properties. The obtained results are compared with available data on alkylpyridinium halides

Body composition evaluated by skinfolds, bioimpedance and body mass index in adults

El objetivo de este estudio fue comparar la composición corporal por pliegues cutáneos (DC) por bioimpedancia eléctrica(BIA) y el índice de masa corporal(IMC). Se hizo un trabajo de campo con 153 militares usando los siguientes equipos: balanza Wiso; estadiómetro WCS; adipómetro Cescorf científico y Malton BF-900 para bioimpedancia eléctrica. La densidad corporal se consiguió por la ecuación de Jackson&Pollock y la clasificación delporcentaje de grasa corporal siguiendo Pollock&Wilmore. Para verificar la correlación se usó el test de Spearman. Los resultados promedios (± desviación estándar) hallados para edad, peso, estatura e IMC, fueron: 19 años (±1,8 años), 70,9Kg (±9,55), 1,74 metros (±0.06) y 23,9 kg/m² (±2,76) respectivamente. El porcentaje de grasa corporal por DC y BIA fueron respectivamente 12,78 (±5,45); 16,29 (±4,02). Concluí que la composición corporal por el método de DC, BIA e IMC presentó datos que se correlacionan, siendo que el uso de la bioimpedancia fue más indicada en grupos cuyo porcentaje de grasa corporal variaba entre 18-20%.The aim of this study was to compare body composition by skinfold thickness (DC) by bioelectrical impedance analysis (BIA) and body mass index (BMI). Research was carried out with 153 soldiers with the equipment: balance Wiso; WCS stadiometer; adipometer Cescorf Malton scientific and BF-900 to bioelectrical impedance analysis. Body density was obtained by the equation of Jackson&Pollock and classification of the percentage of fat by following Pollock&Wilmore. To check the correlation was used Spearman's test. The average results (±standard deviation) found for age, weight, height and BMI were: 19 years (±1.8years), 70.9 kg (±9.55), 1.74 meters (±0.06) and 23.9 kg/m² (±2.76), respectively. The fat percentage by BIA and DC were respectively 12.78 (±5.45) and 16.29 (±4.02). Concluded that body composition by the method of DC, BIA and BMI have data that correlate, and the use of bioimpedance was indicated in most groups whose fat percentage ranged around 18-20%.Gracias CAPES para la inversión financiera en forma de beca en el Programa de Posgrado en Ingeniería Eléctrica e Informática Industrial (CPGEI) de la Universidad Tecnológica Federal de Paraná (UTFPR)