You have made an attempt to browse to something that is either inherently not accessible as a document (not an "information resource"), or not currently accessible using the URI you provided. That attempt resulted in an HTTP "303 See other" protocol response that referred to the text that you are enjoying now. The URI does not name this text; it names something else.
This URI names something belonging to the ontology http://purl.org/science/owl/sciencecommons. Although it is possible that the thing named by the URI is an "information resource", it is more likely that it is an RDF (or OWL) class or property, neither of which would be accessible as a document.
Related things:
In the future, this page will convey its meaning in RDF as well as human-readable form. Further information here.