He has a quiet but assertive magnetism, a youthful dignity and a plainly potential sense of timing that is the good actor's sine qua non.
en.wikipedia.org For example, assertive behavior is determined by environmental factors and assertiveness, whereas assertiveness itself is the product of both brain predisposition and assertive behavior.
en.wikipedia.org He added that the secret of the school's success is strong, assertive leadership from the headteacher.
en.wikipedia.org Program services include inpatient, outpatient, partial hospitalization, day hospital, assertive community treatment, outreach and mental health rehabilitation.
en.wikipedia.org His sound was unconventional, notable for its hard attack and sense of freedom, unexpectedly going from assertive lead parts to rhythmically dynamic, scratching rhythms.
en.wikipedia.org