Previous versions of Thema are still available 1.3 1.2 1.1 1.0.
Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.
|P||Mathematics and Science
Use all P* codes for: mostly academic, technical and specialist titles and some general adult works. Qualifiers are mostly not required with P* codes. DO NOT USE: code ‘P’ itself, but select specific categories from section P*.
Prefer: WN* codes for general interest adult titles where appropriate
|PD||Science: general issues
Use for: the natural sciences as well as general works on the different branches of science. Use with: other subject codes as appropriate
|PDA||Philosophy of science|
|PDC||Scientific nomenclature and classification|
|PDD||Scientific standards, measurement etc|
|PDE||Maths for scientists
See also: PBW Applied mathematics
|PDG||Industrial applications of scientific research and technological innovation|
|PDJ||Regulation of science and experimentation
Use for: works on regulation, whether legal or directed by other bodies or authorities, aimed at scientists and practitioners. Use with: other P* code indicating area of science where appropriate.
See also: LNDB8 Law of science and research, university college law
|PDK||Science funding and policy|
|PDN||Scientific equipment, experiments and techniques|
|PDR||Impact of science and technology on society
Use for: works that look that at impact that any science or technology has had or could have on society. Use with: NHTB for social history or other P* or T* or J* codes as appropriate.
See also: JBFV5 Ethical issues: scientific, technological and medical developments, UBJ Digital and information technologies: social and ethical aspects
Use for: nanomaterials, nanomaterial synthesis, nanoparticle chemistry.
See also: TBN Nanotechnology
|PDX||History of science
See also: TBX History of engineering and technology
Use with: other P* code indicating area of science given popular treatment.
See also: WNW* The Earth: natural history: general interest and its subcategories, WNX Popular astronomy and space
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