Abstract Background In causal analyses, some third factor may distort the relationship between the exposure and the outcome variables under study, which gives spurious results.In this case, treatment groups and control groups that receive and do not receive the exposure are different from one another in some other essential variables, called confou
Objective: to generalize the method of using integral exercises for the development of the physical qualities of aykidists at the initial training stage. Material: young aikidists, 11-13 years old, took part in the study.They were involved in the youth sports club of the Kherson Regional Aikido Federation.All tests that were used in the study were
Flow-induced vibrations and the sound radiation of flexible plate structures of different thickness mounted in a rigid plate are experimentally investigated.Therefore, flow properties and turbulent boundary layer parameters are determined through measurements with a hot-wire anemometer in an aeroacoustic wind tunnel.Furthermore, the excitation of t
El objetivo de este trabajo es presentar de una forma visual la red de dominios web universitarios más importantes de Iberoamérica.En Flags él se muestra las características topológicas y se describe las relaciones web entre universidades de diferentes países y continentes.Se seleccionaron las primeras 350 instituciones iberoamericanas de edu