When accessing them through the Library website, yes. When accessing them directly through the vendor’s website, no. The login may differ on the publisher/vendor website.
If you’re accessing a resource from the vendor/publisher website, look for the login link on the resource page. It’s usually in the menu at the top of the screen. Log in using the Institutional Login (wording may vary by publisher), select University of Arizona from the institution list, and login using your UANet ID credentials. Note: Do not select University of Arizona Global Campus or UAGC. U of A Libraries and UAGC do not share access to the same resources. To get access to resources provided by the University of Arizona, you must select as the institution.