Can an Urban Barbarian use Use Magic Device to cast from scrolls and wands in a Controlled Rage?
Controlled Rage (Ex)
When an urban barbarian rages, instead of making a normal rage she may apply a +4 morale bonus to her Strength, Dexterity, or Constitution. This bonus increases to +6 when she gains greater rage and +8 when she gains mighty rage. She may apply the full bonus to one ability score or may split the bonus between several scores in increments of +2. When using a controlled rage, an urban barbarian gains no bonus on Will saves, takes no penalties to AC, and can still use Intelligence-, Dexterity-, and Charisma-based skills. This ability otherwise follows the normal rules for rage.
While in rage, a barbarian cannot use any Charisma-, Dexterity-, or Intelligence-based skills (except Acrobatics, Fly, Intimidate, and Ride) or any ability that requires patience or concentration.
The bolded section in Rage is the kicker. You can use the skill, but does using the skill still require patience and concentration?
Specific rule trumps general rule, it's the basis for the entire rules system.
The specific text states that you can still Charisma-based skills. This is an exception to the restriction against using abilities that require patience or concentration.