In this task, you are given a sentence in the Spanish language. Your task is to translate the Spanish sentence into the English language.

Las alteraciones cerebrales que caracterizan la enfermedad del Alzheimer son
The brain alterations that characterize Alzheimer's disease are

El ciprofloxacino es un ejemplo de quinolona antibacteriana. ¿Qué sustituyente lleva sobre el nitrógeno de la posición 1?
Ciprofloxacin is an example of an antibacterial quinolone. What substituent does it carry over the nitrogen in position 1?

Reva Rubin identifica la conducta materna después del parto en tres etapas

Reva Rubin identifies maternal behavior after delivery in three stages