You can create new projects or opportunities to participate using the 'Add' button, or going the 'Research' dashboard by using the 'Manage' button on your Group navigation bar:
These are projects that generally have grant support, a timescale and a PI. You can provide a summary/abstract of your project, list objectives, timescales, investigators, link to other website, upload documents summarizing the project's findings and list relevant publications. You can also classify research projects using the DSM-IV and ICD-10 vocabularies. Once you have added a research project to your group, it will also appear on the profile pages of any investigators, and will also appear on the aggregate view of all research in the Semel Institute.
Many studies at UCLA require members of the public to volunteer and participate, recruitment being tightly regulated by Independent Review Boards. Providing IRB approval has been granted for online recruitment, you may create a new 'Participation Opportunity' either by using the Add/Manage buttons from the Group navigation bar, or viewing the Research Project page, and clicking on the icon link towards the bottom of the page. This way you can associate one or more Participation Opportunities to each project. You are advised only to enter text taken from the IRB-approved text/flyer into the various sections of the page you are creating; you should also attach the flyer (as a PDF) where available (See 'Review and approval' tab). As these pages are only intended for the general public, you can only use the basic 'Common subject areas' vocabulary to classify content.
More advice on adding Participation (Recruitment) Opportunities 
Language - under the Title you can optionally create separate versions for English and Spanish. To do this create your first pass of the page in English; 'Save' the page; 'Edit' it (again); Select Spanish, then complete the parts that need to be in Spanish again; 'Save'. Not all aspects of the page can be translated - such as dates - but this may be a useful feature available to you
Optionally you can allow site users to 'Signup' - where they can receive an RSVP and become part of a private mailing list. Although this is reasonably secure (for instance, people who signed up cannot see other signups), note that only people who can log into the site with a UCLA Online ID can signup (although, anyone in the world can create such an account), and you should probably consult with the IRB before activating this feature.
Opportunities to Participate are listed either below aggregate lists [on your Group site, or on the Semel Institute summary], or below the relevant research project web page. They are automatically removed from public listings when the IRB renewal date has passed.
To truly leverage the help that search engines offer, you should not merely embed an IRB-approved PDF flyer onto any page you choose for 2 reasons:
Such opportunities are then listed:
And because you are generating a fresh page, Google is alerted within 24 hours by the Semel server; PDF file uploads do not generate such Google alerts. Participation opportunities are automatically removed from aggregate listings by the server when the IRB 'expiry' date is passed.