The Samurai resolve ability does not work as intended when using the determined function
Determined: As a standard action, the samurai can spend one use of his resolve to remove the fatigued, shaken, or sickened condition. If the samurai is at least 8th level, he can alternatively remove the exhausted, frightened, nauseated, or staggered condition. If the condition has a duration longer than 1 hour or is permanent, this ability removes the condition for 1 hour, at which time the condition returns.
Bolded text is important:
Note that the nauseated condition says the following:
Nauseated: Creatures with the nauseated condition experience stomach distress. Nauseated creatures are unable to attack, cast spells, concentrate on spells, or do anything else requiring attention. The only action such a character can take is a single move actions per turn.
Bolded text is important. Also, the section "actions" in the bolded sentence should be "action".
As such, the Resolve: Determined ability is unable to remove the naseauted condition because the naseuated condition prevents the use of standard actions.