Growing load and deterioration of the environment can be interpreted as a result of some external effects interventions. While the positive externalities influence the positive productional and utilizational functions of other subjects, the negative externalities influence the negative ones. Both types of external effects can act as parcial or global externalities. Linking of environmental issu...

Small-sided games (SSGs) are a motivational strategy and effective training method to develop skills physical fitness at optimal intensity. This study investigates the influence of variability in number players on physiological response using SSGs. The sample was composed 10 field with an average age 15.9 ± 0.50 years old. Three sessions were held 3 different days collect information. min SSG e...

Planetary gearsets are widely used in several mechanical systems and have numerous advantages over counter-shaft gears. Despite this, the complex arrangement of components a planetary gear system makes them susceptible to noise vibration issues. An exhaustive rich literature is available on topic dynamics, but most these studies consider only parametric excitation mesh contacts while assuming a...