Complex sentence: The editor of the journal, Professor Marie-Paule Pileni, an expert in explosives and nano-technology, resigned after she received an e-mail from the Danish science journal Videnskab asking for her professional assessment of the article's content.
Split into simpler sentences: The editor of the journal, Professor Marie-Paule Pileni, an expert in explosives and nano-technology, resigned. She received an e-mail from the Danish science journal Videnskab asking for her professional assessment of the article's content.