Thema Subject Categories 1.3

Previous versions of Thema are still available 1.2 1.1 1.0.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

See the search hints below.

Notation Category heading Add Mod ?
P Mathematics & Science
PS Biology, life sciences
Use for: (all PS* codes) academic, specialist and professional level works. Prefer WN* codes for natural history etc for the general reader. See also: WN* Nature & the natural world: general interest and its subcategories
PSA Life sciences: general issues
PSB Biochemistry
Class here: biochemical immunology, non-medical toxicology, enzymology, lipids etc
PSC Developmental biology
PSD Molecular biology
PSE Chemical biology
Class here: synthetic biology
PSF Cellular biology (cytology)
PSG Microbiology (non-medical)
Class here: protozoa, non-medical bacteriology, parasitology, virology etc
PSP Hydrobiology
See also: RBK Hydrology & the hydrosphere
PSQ Mycology, fungi
Class here: lichen
PST Botany & plant sciences
PSV Zoology & animal sciences
See also: WNC Wildlife: general interest
PSX Human biology

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