RESUMEN
This work presents a forced synchronization phenomenon like the asymptotic correlated behavior between chaotic oscillators forced by an external signal. Different kinds of forced synchronization are presented and given a theoretical justification explaining why it is possible to find some of them. Numerical results are presented for different cases such as antisymmetric, lag, phase, and identical forced synchronization.
Asunto(s)
Biofisica/métodos , Dinámicas no Lineales , Oscilometría/métodos , Algoritmos , Simulación por Computador , Modelos Estadísticos , Modelos Teóricos , Fenómenos Físicos , Física , Biología de Sistemas , Teoría de Sistemas , Factores de TiempoRESUMEN
Synchronization of nonlinear systems forced by external signals is formalized as the response of a nonlinear filter. Sufficient conditions for a nonlinear system to behave as a filter are given. Some examples of generalized chaos synchronization are shown to actually be special cases of nonlinear filtering.
Asunto(s)
Algoritmos , Dinámicas no Lineales , Oscilometría/métodos , Procesamiento de Señales Asistido por Computador , Simulación por ComputadorRESUMEN
In 18 children receiving long-term total parenteral nutrition (TPN) without iodide supplements, thyroid function test results were normal but serum iodide levels were greater than in control subjects (p less than 0.01). Iodine contamination of TPN solutions and fat emulsions accounted for only half of the recommended parenteral intake. Skin absorption of topical iodinated disinfectant may explain the adequate, if not excessive, iodine intake. We conclude that iodine is an unnecessary supplement in TPN solutions.