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
PSAB Taxonomy & systematics
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
1.2
PSAF Ecological science, the Biosphere
Use for: comprehensive scientific, objective & descriptive works on living organisms & their relationship with their environment. See also: RNC Applied ecology
PSAG Xenobiotics
PSAJ Evolution
PSAK Genetics (non-medical)
Class here: DNA, Genome etc. See also: TCBG Genetic engineering, MFN Medical genetics
PSAN Neurosciences
Use MKMT6 “Cognitive behavioural therapy” for therapeutic aspects of neuroscience. See also: MKJ Neurology & clinical neurophysiology, GTK Cognitive studies, MKMT6 Cognitive behavioural therapy
1.1
PSAX Computational biology / bioinformatics
See also: MBF Medical & health informatics

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