Given a sentence in Spanish, provide an equivalent paraphrased translation in English that retains the same meaning both through the translation and the paraphrase.

Example Input: La polarización óptica resulta microscópicamente de transiciones mecánicas cuánticas entre diferentes estados del sistema material.
Example Output: Microscopically , the optical polarization arises from quantum mechanical transitions between different states of the material system .

Example Input: Malhar Joshi no debe confundirse con el autor Waman Gopal Joshi, eran contemporáneos.
Example Output: Vaman Malhar Joshi should not be confused with the writer Waman Gopal Joshi . They were contemporaries .

Example Input: Aquí vemos a los operadores pseudo-diferenciales como una generalización de los operadores diferenciales.
Example Output:
We consider pseudo-differential operators here as a generalization of differential operators .