CIPO also administers industrial designs and integrated circuit topographies. These islands have a variety of topographies, ecosystems and formation history. The manufactured topographies evoked the nearby rocky seaside. The Northern Cape is a dry region with fluctuating temperatures and differing topographies. Self-assembly is able to create both ordered and unordered topographies. In its turn, Risdon's "Survey" has been used as a source for later topographies. His current research interests include media topographies, desert studies, and performative criticism. The broad-scale topographies of the Earth illustrate this intersection of surface and subsurface action. This territory is characterized by diverse topographies such as hill, high mountain, stream and valley. For example, well-documented inverted topographies have been discovered on Mars. Layout designs (topographies) of integrated circuits are a field in the protection of intellectual property. Ordered topographies are defined as patterns that are organized and geometrically precise. Chip topographies are also protected by TRIPS, an international treaty. Many cratons have had subdued topographies since Precambrian times. Unordered topographies can be created by polymer demixing, colloidal lithography and chemical etching.