Definition: Translate the given Spanish text to English

Positive Example 1 -
Input: A method for converting a series of m-bit information words to a modulated signal is described.
Output: Se describe un método para convertir una serie de palabras de informacion de bits m a una señal modulada.

Positive Example 2 -
Input: A last plastic cover is applied as a final protection.
Output: La presente invencion comprende un nuevo mezclador termocinetico.

Negative Example 1 -
Input: Luminescent optical sensor.
Output: SENSOR OPTICO LUMINISCENTE.

Negative Example 2 -
Input: The urinal is similar to a common toilet.
Output: El común es similar a un inodoro orinal.

Now complete the following example -
Input: In particular, according to the purification method of the present invention, hG-CSF variants expressed in E. coli are efficiently removed to obtain physiologically active hG-CSFs with high purity.
Output: En particular, de acuerdo con el método de purificación de la presente invención, las variantes de hG-CSF expresadas en E. coli se remueven eficientemente para obtener hG-CSFs fisiológicamente activos con alta pureza.