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.

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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
PSAD Bioethics
Use for: issues surrounding the ethics of practices typically connected to new developments in biology and medicine. See also: MBDC Medical ethics & professional conduct, JBFV Ethical issues & debates
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