(architecture) A field of research and analysis in architecture that uses studies and details from nature or other sources to produce or create a new structure. It is used in design and architecture to imitate structures and improve them giving them a certain amount of art feeling. Structural research can be also called structural art or structural design.

(operations) The application of scientific methods and techniques to problems of decision making, especially in business management and government administration.

A method of studying social behavior indirectly, without affecting it.

Any form of research that takes place in space, or concerns any aspect of space or space travel

Research performed without regard to practical applications.

Research performed using the historical method.

Research performed through the summary, collation or synthesis of the results of existing research.

Research that involves the collection of previously ungathered data, rather than the analysis of that which is already available.

Research performed using the scientific method.

(US, politics, informal) Research into one's opponent's family, friends, and past, which aims to uncover activities or interests which embarrass or discredit them.