/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ is in octave-secs2d 0.0.8-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXMOBN0STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXMOBN1STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXMOBP0STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXMOBP1STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXTWN0STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXTWN1STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXTWP0STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXTWP1STD.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXddcurrent.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXelectron_driftdiffusion.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXeletiteration.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXgummelmap.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXhole_driftdiffusion.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXnlpoisson.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXthermaliteration.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXupdateelectron_temp.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXupdatehole_temp.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/ThDDGOXupdatelattice_temp.m
/usr/share/octave/packages/secs2d-0.0.8/ThDDGOX/doc-cache