Complex sentence: Since 1955, the society has published a biannual philosophy journal called "Dialogue", which publishes articles from the entire field of philosophy, regardless of whether the contributor is a member of Phi Sigma Tau.
Split into simpler sentences: Since 1955, the society has published a twice yearly philosophy journal, "Dialogue". Dialogue publishes articles from the entire field of philosophy, regardless of whether they are a member of Phi Sigma Tau.