Study could help reveal why some mental health disorders vary between men and women — but it's not clear whether the differences are due to sex or gender.

Self-determination theory offered a new model of what a human being is. Behaviorists said motivation comes from outside, while SDT argued that the deepest motivation is intrinsic.

The traits that once helped you succeed can later hold you back. Learn how personality strengths become outdated, and how to add range for your next chapter.

Abstract: Communication in underground spaces faces significant challenges due to harsh environments and physical barriers that disrupt signal transmission. In complex settings like tunnels, mines, ...