CTNS meaning in Academic & Science ?

The Graduate Theological Union (GTU) is a consortium of eight private independent American theological schools and eleven centers and affiliates. Seven of the theological schools are located in Berkeley, California. The GTU was founded in 1962 and their students can take courses at the University of California, Berkeley. Additionally, some of the GTU consortial schools are part of other California universities such as Santa Clara University (Jesuit School of Theology) and California Lutheran University (Pacific Lutheran Theological Seminary). Most of the GTU consortial schools are located in Berkeley area with the majority north of the campus in a neighborhood known as "Holy Hill" due to the cluster of GTU seminaries and centers located there.