When looking at articles in a database, full-text may be immediately available via a PDF or HTML page. If not, use the UCeLinks button.
Here's an example of an article you would need to use UC-eLinks to get the full text:
The impact of self-driving cars on existing transportation networks
If UC-eLinks doesn't give you any options to read the full-text online, you can request the item through Interlibrary Loan (ILL) by using your UCMnetID. Here's an example of an article you would need to ILL:
Human Services Professionals' Awareness of Human Trafficking