Hello Lorna,
We don't have full text access to all articles provided by Wiley and Science Direct, so it may be that you are trying to access something we don't subscribe to. You can check which journal titles we do have full text access to by searching our Journals A-Z list http://atoz.ebsco.com/Titles/K09933?lang=en&lang.menu=en&lang.subject=en . If you need any further help, please contact the library enquiry desk library-enquiries@newman.ac.uk .
Jane Faux, Liaison Librarian