{"thcode":2,"term":{"code":740,"name":"microscopy","parent":619,"scope":"Laboratory methods using instruments that employ optical lenses or radiation to study objects too small to be seen by the naked eye."},"uf":[{"name":"microscope methods","usewith":false}],"bt":[{"code":619,"name":"laboratory methods","parent":734,"scope":"Techniques to analyze and test samples in a place equipped and designed for the work."},{"code":734,"name":"methods","parent":1,"scope":"Techniques, methods, procedures, or strategies for research, management, collection, or analysis of scientific information in USGS."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[{"code":327,"name":"electron microscopy","parent":740,"scope":"Study of small particles of matter with a microscope that produces a magnified image by using a beam of electrons focused by magnetic lenses."},{"code":835,"name":"optical microscopy","parent":740,"scope":"Scientific techniques using a microscope with one or more lenses illuminated with visible light to view small objects."}],"rt":[{"code":370,"name":"faunal and floral census (microscopic)","parent":619,"scope":"Records of counts of the different microscopic species in a core, soil, sediment, rock or water sample to determine geologic age or other characteristic of the sample.  Use for microscopic examinations."}]}