The Fulltext UNESCO Nomenclature

11: Logic

1101: Applications of logic

1102: Deductive Logic

• 1102.01: Analogy
• 1102.02: Boolean Algebra
• 1102.03: Formal Logic
• 1102.04: Formalized languages
• 1102.05: Formal systems
• 1102.06: Foundations of mathematics
• 1102.07: Generalization
• 1102.08: Mathematical logic
• 1102.09: Modal Logic
• 1102.10: Model theory
• 1102.11: Proff theory
• 1102.12: Propositional Calculus
• 1102.13: Recursive functions
• 1102.14: Symbolic logic
• 1102.15: Theory of formal languages
• 1102.99: Other (specify)

1103: General Logic

1104: Inductive Logic

• 1104.01: Induction
• 1104.02: Intuitionism
• 1104.03: Probability
• 1104.99: Other (specify)

1105: Methodology

• 1105.01: Scientific method
• 1105.99: Other (specify)

1199: Other specialties on logic (specify)

12: Mathematics

1201: Algebra

• • 1201.01: Algebraic geometry
  • 1201.02: Axiomatic set theory
  • 1201.03: Category theory
  • 1201.04: Differential algebra
  • 1201.05: Fields, rings, algebra
  • 1201.06: Groups, generalizations
  • 1201.07: Homological algebra
  • 1201.08: Lattices
  • 1201.09: Lie algebra
  • 1201.10: Linear algebra
  • 1201.11: Matrix theory
  • 1201.12: Non-associative algebras
  • 1201.13: Polynomials
  • 1201.14: Representation theory
  • 1201.99: Other (specify)

1202: Analysis and functional analysis

• 1202.01: Algebra of operators
• 1202.02: Approximation theory
• 1202.03: Banach spaces and algebras
• 1202.04: Calculus of variations
• 1202.05: Combinatorial analysis
• 1202.06: Convexity, Inequalities
• 1202.07: Difference equations
• 1202.08: Functional equations
• 1202.09: Functions of a complex variable
• 1202.10: Functions of real variables
• 1202.11: Functions of several complex variables
• 1202.12: Global Analysis
• 1202.13: Harmonic analysis
• 1202.14: Hilbert Spaces
• 1202.15: Integral equations
• 1202.16: Integral transforms
• 1202.17: Measure, integration, area
• 1202.18: Operational calculus
• 1202.19: Ordinary differential equations
• 1202.20: Partial differential equations
• 1202.21: Potential theory
• 1202.22: Series, summability
• 1202.23: Special functions
• 1202.24: Subharmonic functions
• 1202.25: Topological linear spaces
• 1202.26: Trigonometric series and integrals
• 1202.99: Other (specify)

1203: Computer Sciences

• 1203.01: Accounting
• 1203.02: Algorithmic languages
• 1203.03: Analog computing
• 1203.04: Artificial Intelligence
• 1203.05: Automated manufacturing systems
• 1203.06: Automated quality control systems
• 1203.07: Causal modelling
• 1203.08: Codes and coding systems
• 1203.09: Computer-assisted design
• 1203.10: Computer-assisted instruction
• 1203.11: Computer software
• 1203.12: Data banks
• 1203.13: Digital computing
• 1203.14: Environmental control systems
• 1203.15: Heuristics
• 1203.16: Hybrid computing
• 1203.17: Informatics
• 1203.18: Information systems and components; design and components
• 1203.19: Inventory Control
• 1203.20: Medical monitoring systems
• 1203.21: Navigation and space telemetry systems
• 1203.22: Production control systems
• 1203.23: Programming languages
• 1203.24: Programming theory
• 1203.25: Sensors systems design
• 1203.26: Simulation
• 1203.99: Other (specify)

1204: Geometry

• 1204.01: Affine geometry
• 1204.02: Complex manifolds
• 1204.03: Convex domains
• 1204.04: Differential geometry
• 1204.05: Extremum problems
• 1204.06: Euclidean geometry
• 1204.07: Finite geometries
• 1204.08: Foundations
• 1204.09: Non-Euclidean geometries
• 1204.10: Projective geometry
• 1204.11: Riemannian geometry
• 1204.12: Tensor Analysis
• 1204.99: Other (specify)

1205: Number Theory

• 1205.01: Algebraic numbers theory
• 1205.02: Analytic number theory
• 1205.03: Diophantine problems
• 1205.04: Elementary number theory
• 1205.05: Geometry of numbers
• 1205.99: Other (specify)

1206: Numerical Analysis

• 1206.01: Algorithms construction
• 1206.02: Differential equations
• 1206.03: Error analysis
• 1206.04: Functional Equations
• 1206.05: Integral equations
• 1206.06: Integro-differential equations
• 1206.07: Interpolation, approximation and curve fitting
• 1206.08: Iterative Methods
• 1206.09: Linear Equations
• 1206.10: Matrices
• 1206.11: Numerical differentiation
• 1206.12: Ordinary differential equations
• 1206.13: Partial differential equations
• 1206.14: Quadratura
• 1206.99: Other (specify)

1207: Operations Research

• 1207.01: Activity analysis
• 1207.02: Control systems
• 1207.03: Cybernetics
• 1207.04: Distribution and transport
• 1207.05: Dynamic programming
• 1207.06: Game theory
• 1207.07: Integer programming
• 1207.08: Inventory
• 1207.09: Linear programming
• 1207.10: Networks flow
• 1207.11: Non-linear Ppogramming
• 1207.12: Queuing
• 1207.13: Scheduling
• 1207.14: Systems formulation
• 1207.15: Systems reliability
• 1207.99: Other (specify)

1208: Probability

• 1208.01: Actuarial mathematics
• 1208.02: Analytic probability theory
• 1208.03: Application of probability
• 1208.04: Foundations of probability
• 1208.05: Limit theorems
• 1208.06: Markov processes
• 1208.07: Plausibility
• 1208.08: Stochastic processes
• 1208.09: Subjective probabilities
• 1208.99: Other (specify)

1209: Statistics

• 1209.01: Analytical statistics
• 1209.02: Computing for statistics
• 1209.03: Data analysis
• 1209.04: Decision procedures and theory
• 1209.05: Design and analysis of experiments
• 1209.06: Distribution-free and nonparametric methods
• 1209.07: Distribution and probability theory
• 1209.08: Foundations of statistical inference
• 1209.09: Multivariate analysis
• 1209.10: Sampling theory and techniques
• 1209.11: Stochastic theory and time series analysis
• 1209.12: Techniques of statistical association
• 1209.13: Techniques of statistical inferenc
• 1209.14: Techniques of statistical prediction
• 1209.15: Time series
• 1209.99: Other (specify)

1210: Topology

• 1210.01: Abstract spaces
• 1210.02: Cohomology
• 1210.03: Differential manifolds
• 1210.04: Fibre bundles and spaces
• 1210.05: General topology
• 1210.06: Homology
• 1210.07: Homotopy
• 1210.08: Lie groups
• 1210.09: Piecewise linear topology
• 1210.10: Point-set topology
• 1210.11: Three dimensional topology
• 1210.12: Topological groups
• 1210.13: Topological dynamics
• 1210.14: Topological embedding
• 1210.15: Topological manifolds
• 1210.16: Transformation groups
• 1210.99: Other (specify)

1299: Other mathematical specialities

21: Astronomy and astrophysics

2101: Cosmology and cosmogony

• • 2101.01: Binary stars
  • 2101.02: Clusters
  • 2101.03: Cosmic Rays
  • 2101.04: Galaxies
  • 2101.05: Gravitation
  • 2101.06: Nebulae
  • 2101.07: Novae
  • 2101.08: Pulsars
  • 2101.09: Quasars
  • 2101.10: Stars
  • 2101.11: Stellar evolution and HR diagram
  • 2101.12: Stellar composition
  • 2101.13: Super-novae
  • 2101.14: Variable stars
  • 2101.15: X-ray sources

• 2101.99: Other (specify)

2102: Interplanetary medium

• 2102.01: Interplanetary fields
• 2102.02: Interplanetary matter
• 2102.03: Interplanetary particles
• 2102.99: Other (specify)

2103: Optical astronomy

• 2103.01: Position astronomy
• 2103.02: Telescopes
• 2103.03: Spectroscopy
• 2103.99: Other (specify)

2104: Planetology (2512 3324)

• 2104.01: Comets
• 2104.02: Meteorites
• 2104.03: Planetary atmospheres
• 2104.04: Planetary geology
• 2104.05: Planetary physics
• 2104.06: Planetary magnetic fields
• 2104.07: Planets
• 2104.08: Satellites
• 2104.09: Tektites
• 2104.10: The Moon
• 2104.99: Other (specify)

2105: Radioastronomy

• 2105.01: Antennae
• 2105.02: Radio-telescopes
• 2105.99: Other (specify)

2106: Solar System

• 2106.01: Solar energy
• 2106.02: Solar physics
• 2106.03: Solar wind
• 2106.04: The Sun
• 2106.99: Other (specify)

2199: Other astronomical specialties (specify)

22: Physics

2201: Acoustics

• 2201.01: Acoustic properties of solids
• 2201.02: Architectural Acoustics
• 2201.03: Hearing (physics of)
• 2201.04: Music (physics of)
• 2201.05: Noise
• 2201.06: Shock waves
• 2201.07: Sonar
• 2201.08: Speech (physics of)
• 2201.09: Ultrasonics
• 2201.10: Underwater sounds
• 2201.11: Vibrations
• 2201.99: Other (specify)

2202: Electromagnetism

• 2202.01: Conductivity
• 2202.02: Electrical quantities and their measurement
• 2202.03: Electricity
• 2202.04: Electromagnetic waves
• 2202.05: Gamma rays
• 2202.06: Infrared, visible and ultraviolet radiation
• 2202.07: Interaction of electromagnetic waves with matter
• 2202.08: Magnetism
• 2202.09: Propagation of electromagnetic waves
• 2202.10: Radiowaves and microwaves
• 2202.11: Superconductivity
• 2202.12: X-rays
• 2202.99: Other (specify)

2203: Electronics

• 2203.01: Circuits
• 2203.02: Circuit elements
• 2203.03: Electron tubes
• 2203.04: Electron Microscopy
• 2203.05: Electron states
• 2203.06: Electron transport
• 2203.07: Integrated circuits
• 2203.08: Photoelectricity
• 2203.09: Piezo-electricity
• 2203.99: Other (specify)

2204: Fluids (physics of)

• 2204.01: Colloids
• 2204.02: Dispersions
• 2204.03: Fluid flow
• 2204.04: Fluid mechanics
• 2204.05: Gases
• 2204.06: High pressure phenomena
• 2204.07: Ionisation
• 2204.08: Liquids
• 2204.09: Magnetofluid dynamics (Magnetofluidodinámica)
• 2204.10: Plasmas (physics of)
• 2204.11: Quantum fluids
• 2204.99: Other (specify)

2205: Mechanics

• 2205.01: Analytical mechanics
• 2205.02: Continuous mechanics
• 2205.03: Elasticity
• 2205.04: Fluid mechanics
• 2205.05: Friction
• 2205.06: Many body theory
• 2205.07: Measurement of mechanical properties
• 2205.08: Plasticity
• 2205.09: Solid mechanics
• 2205.10: Statistical mechanics
• 2205.99: Other (specify)

2206: Molecular physics

• 2206.01: Free radicals
• 2206.02: Inorganic molecules
• 2206.03: Macromolecules
• 2206.04: Mesic and muonic molecules
• 2206.05: Molecular beams
• 2206.06: Molecular ions
• 2206.07: Molecular spectroscopy
• 2206.08: Molecular structure
• 2206.09: Organic molecules
• 2206.10: Polymers (physics of)
• 2206.99: Other (specify)

2207: Nuclear physics

• 2207.01: Atomic beams
• 2207.02: Atomic ions
• 2207.03: Atomic physics
• 2207.04: Atoms with Z greater than 2
• 2207.05: Collision processes
• 2207.06: Electron beams
• 2207.07: Electron paramagnetic resonance
• 2207.08: Electron spin resonance
• 2207.09: Energy Conversion
• 2207.10: Fission (nuclear)
• 2207.11: Helium atom
• 2207.12: Hydrogen atom
• 2207.13: Isotopes
• 2207.14: Nuclear decay
• 2207.15: Nuclear Energy
• 2207.16: Nuclear magnetic resonance
• 2207.17: Nuclear reaction and scattering
• 2207.18: Nuclear reactors
• 2207.19: Nuclear structure
• 2207.20: Radioisotopes
• 2207.21: Thermonuclear fusion
• 2207.90: Low energy experimental nuclear physics
• 2207.99: Other (specify)

2208: Nucleonics

• 2208.01: Beam handling
• 2208.02: Beam sources
• 2208.03: Fusion reactors
• 2208.04: Nuclei
• 2208.05: Particle accelerators
• 2208.06: Particle detectors
• 2208.07: Particle physics
• 2208.08: Particles sources
• 2208.09: Plasma Containment
• 2208.99: Other (specify)

2209: Optics

• 2209.01: Absorption spectroscopy
• 2209.02: Cinematography
• 2209.03: Colorimetry
• 2209.04: Emission spectroscopy
• 2209.05: Fibre Optics
• 2209.06: Geometric optics
• 2209.07: Holography
• 2209.08: Ilumination
• 2209.09: Infrared radiation
• 2209.10: lasers
• 2209.11: Light
• 2209.12: Microscopes
• 2209.13: Non-linear Optics
• 2209.14: Optical properties of solids
• 2209.15: Optometry
• 2209.16: Photographic instrumentation
• 2209.17: Photography
• 2209.18: Photometry
• 2209.19: Physical optics
• 2209.20: Radiometry
• 2209.21: Spectroscopy
• 2209.22: Ultra-violet radiation
• 2209.23: Visible radiation
• 2209.24: Vision (physics of)
• 2209.90: Digital treatment. Images
• 2209.99: Other (specify)

2210: Physical chemistry

• 2210.01: Catalysis
• 2210.02: Chemical and phase equilibrium
• 2210.03: Chemical kinetics
• 2210.04: Colloids chemistry
• 2210.05: Electrochemistry
• 2210.06: Electrolytes
• 2210.07: Electronic spectroscopy
• 2210.08: Emulsions
• 2210.09: Energy transfer
• 2210.10: Fast reactions; explosives
• 2210.11: Flames
• 2210.12: Fuel cells (theory of)
• 2210.13: Fused salts
• 2210.14: Gas phase physics
• 2210.15: High temperatures chemistry
• 2210.16: Interfacial chemistry
• 2210.17: Ion eschange
• 2210.18: liquid state physics
• 2210.19: Membrane phenomena
• 2210.20: Molecular spectroscopy
• 2210.21: Phase equilibria
• 2210.22: Photochemistry
• 2210.23: Quantum theory
• 2210.24: Radiochemistry
• 2210.25: Relation processes
• 2210.26: Scattering phenomena
• 2210.27: States of matter
• 2210.28: Solid state chemistry
• 2210.29: Solid state physics
• 2210.30: Solutions
• 2210.31: Thermochemistry
• 2210.32: Thermodynamics
• 2210.33: Transport phenomena
• 2210.34: Valence theory
• 2210.90: Physical chemistry of Polymers
• 2210.91: Physical Chemistry: Gas phase chemistry
• 2210.93: Liquid crystals
• 2210.99: Other (specify)

2211: Solid state physics

• 2211.01: Alloys
• 2211.02: Composites
• 2211.03: Crystal growth
• 2211.04: Crystallography
• 2211.05: Crystal structure
• 2211.06: Dendrites
• 2211.07: Dielectrics
• 2211.08: Diffusion in solids
• 2211.09: Electron carriers properties
• 2211.10: Electron states
• 2211.11: Electron transport properties
• 2211.12: Imperfections
• 2211.13: Interaction of radiation with solids
• 2211.14: Interfaces
• 2211.15: Lattice mechanics
• 2211.16: Luminescence
• 2211.17: Magnetic properties
• 2211.18: Magnetic resonance
• 2211.19: Mechanical properties
• 2211.20: metallic conductors
• 2211.21: Metallurgy
• 2211.22: Metallography
• 2211.23: Non-crystalline states
• 2211.24: Optical properties
• 2211.25: Semiconductors
• 2211.26: Solid state devices
• 2211.27: Superconductors
• 2211.28: Surfaces
• 2211.29: Thermal properties of solids
• 2211.30: Tribology
• 2211.90: Solid state physics. Thin sheet
• 2211.91: Solid State physics. Solids spectroscopy
• 2211.99: Other (specify)

2212: Theoretical physics

• 2212.01: Electromagnetic fields
• 2212.02: Elementary particles
• 2212.03: Energy (physics)
• 2212.04: Fields
• 2212.05: Gravitation
• 2212.06: Gravitational fields
• 2212.07: Gravitons
• 2212.08: Hadrons
• 2212.09: Leptons
• 2212.10: Mass
• 2212.11: Photons
• 2212.12: Quantum field theory
• 2212.13: Radiation (electromagnetic)
• 2212.14: Theory of relativity
• 2212.99: Other (specify)

2213: Thermodynamics

• 2213.01: Changes of state
• 2213.02: Heat transfer (physics of)
• 2213.03: High pressure
• 2213.04: High temperature
• 2213.05: Kinetic theory
• 2213.06: Low temperatures
• 2213.07: Phase transition
• 2213.08: Thermal measurement techniques
• 2213.09: Thermodynamic equilibria
• 2213.10: Thermodynamic relationships
• 2213.11: Transport phenomena
• 2213.99: Other (specify)

2214: Units and Constants

• 2214.01: Constants (physics)
• 2214.02: Metrology
• 2214.03: Standard units
• 2214.04: Unit calibration
• 2214.05: Unit conversion
• 2214.99: Other (specify)

2290: High energy Physics

• 2290.01: Theoretical high energy physics

2299: Other physical specialties (specify)

23: Chemistry

2301: Analytical Chemistry

• • 2301.01: Absorption spectroscopy
  • 2301.02: Biochemical analysis
  • 2301.03: Chromatographic analysis
  • 2301.04: Electrochemical Analysis
  • 2301.05: Emission spectroscopy
  • 2301.06: Fluorimetry
  • 2301.07: Gravimetry
  • 2301.08: Infrared spectroscopy
  • 2301.09: Magnetic resonance spectroscopy
  • 2301.10: Mass spectroscopy
  • 2301.11: Microchemical analysis
  • 2301.12: Microscopy
  • 2301.13: Microwave spectroscopy
  • 2301.14: Phosphorimetry
  • 2301.15: Polymer analysis
  • 2301.16: Radiochemical analysis
  • 2301.17: Raman spectroscopy
  • 2301.18: Thermal analytical methods
  • 2301.19: Volumetry
  • 2301.20: X-Ray spectroscopy
  • 2301.99: Other (specify)

2302: Biochemistry

• 2302.01: Alkaloids
• 2302.02: Amino Acids
• 2302.03: Antimetabolites
• 2302.04: Biochemical genetics
• 2302.05: Biosynthesis
• 2302.06: Chemotherapy
• 2302.07: Clinical chemistry
• 2302.08: Co-enzymes
• 2302.09: enzymology
• 2302.10: Essential oils
• 2302.11: Fatty acids
• 2302.12: Fermentation
• 2302.13: Feedback regulation
• 2302.14: Glucides
• 2302.15: Hormones
• 2302.16: Immunochemistry
• 2302.17: Intermediary metabolism
• 2302.18: Lipids
• 2302.19: Metabolic processes
• 2302.20: Microbiological chemistry
• 2302.21: Molecular biology
• 2302.22: Molecular pharmacology
• 2302.23: Nucleic acids
• 2302.24: Peptides
• 2302.25: Photosynthesis
• 2302.26: Physical biochemistry
• 2302.27: Proteins
• 2302.28: Starch
• 2302.29: Steroids
• 2302.30: Terpenes
• 2302.31: Trace-elements
• 2302.32: Vitamins
• 2302.33: Waxes
• 2302.90: Food biochemistry
• 2302.91: Biological macromolecules chemistry
• 2302.99: Other (specify)

2303: Inorganic chemistry

• 2303.01: Actinides chemistry
• 2303.02: Alkaline earths
• 2303.03: Alkaline elements
• 2303.04: Boron compounds
• 2303.05: Carbon
• 2303.06: Chlorine compounds
• 2303.07: Co-ordination compounds
• 2303.08: Electron deficient compounds
• 2303.09: Electropositive elements
• 2303.10: Fluorine compounds
• 2303.11: Germanium
• 2303.12: Graphite
• 2303.13: Halogens
• 2303.14: Hydrogen
• 2303.15: Hydrides
• 2303.16: Inorganic reactions (mechanisms of)
• 2303.17: Lead compounds
• 2303.18: Metals
• 2303.19: Metal alkyls
• 2303.20: Nitrogen compounds
• 2303.21: Organo-metallic compounds
• 2303.22: Phosphorous compounds
• 2303.23: Pigments chemistry
• 2303.24: Rare earths
• 2303.25: Sodium compounds
• 2303.26: Structure of inorganic compounds
• 2303.27: Sulfur compounds
• 2303.28: Synthetic elements
• 2303.29: Transition elements
• 2303.30: Transuranic elements
• 2303.31: Water chemistry
• 2303.99: Other (specify)

2304: Macromolecular chemistry

• 2304.01: Cellular plastics
• 2304.02: Cellulose
• 2304.03: Composites polymers
• 2304.04: Elastomers
• 2304.05: Gums
• 2304.06: High polymers
• 2304.07: Inorganic polymers
• 2304.08: Macromolecules
• 2304.09: Modification of macromolecules
• 2304.10: Monomers chemistry
• 2304.11: Natural fibers
• 2304.12: Network polymers
• 2304.13: Polyelectrolytes
• 2304.14: Polyesters
• 2304.15: Polyethylene
• 2304.16: Polymer analysis
• 2304.17: Polymer in dispersed form
• 2304.18: Polypeptides and proteins
• 2304.19: Polysaccharides
• 2304.20: Polystyrene
• 2304.21: Polyurethanes
• 2304.22: Stability of macromolecules
• 2304.23: Synthesis of macromolecules
• 2304.24: Synthetic fibres
• 2304.99: Other (specify)

2305: Nuclear Chemistry

• 2305.01: Hot atoms chemistry
• 2305.02: Isotope tracers
• 2305.03: Marked molecules
• 2305.04: Radiation chemistry
• 2305.05: Radiochemistry
• 2305.06: Radioisotopes
• 2305.07: Separation of isotopes
• 2305.99: Other (specify)

2306: Organic Chemistry

• 2306.01: Aliphatic hydrocarbons
• 2306.02: Aromatic hydrocarbons
• 2306.03: benzene derivatives
• 2306.04: Bicyclic chemistry
• 2306.05: Carbanion chemistry
• 2306.06: Carbohydrates chemistry
• 2306.07: Carbonium chemistry
• 2306.08: Dyestuff chemistry
• 2306.09: Free radicals
• 2306.10: Heterocyclic compounds
• 2306.11: Organometallic
• 2306.12: Organophosphorus chemistry
• 2306.13: Organosilicon chemistry
• 2306.14: Organosulfur chemistry
• 2306.15: Reaction Mechanisms
• 2306.16: Stereochemistry and conformational analysis
• 2306.17: Steroids chemistry
• 2306.18: Structure of organic molecules
• 2306.90: Organic natural products chemistry
• 2306.91: Organic chemistry. Instrumental analysis
• 2306.99: Other (specify)

2307: Physical chemistry

2390: Pharmaceutical chemistry

• 2390.01: Design, synthesis and study of new drugs

2399: Other chemical specialties (specify)

24: Life Sciences

2401: Animal biology (Zoology)

• • 2401.01: Animal anatomy
  • 2401.02: Animal behaviour
  • 2401.03: Animal communication
  • 2401.04: Animal cytology
  • 2401.05: Animal development
  • 2401.06: Animal ecology
  • 2401.07: Animal embryology
  • 2401.08: Animal genetics
  • 2401.09: Animal growth
  • 2401.10: Animal histology
  • 2401.11: Animal pathology
  • 2401.12: Animal parasitology
  • 2401.13: Animal physiology
  • 2401.14: Animal Taxonomy
  • 2401.15: General Zoology
  • 2401.16: Herpetology
  • 2401.17: Invertebrates
  • 2401.18: Mammology
  • 2401.19: Marine zoology
  • 2401.20: Ornithology
  • 2401.21: Primatology
  • 2401.22: Protozoology
  • 2401.23: Vertebrates
  • 2401.90: Zoology: letiology
  • 2401.91: Non-insect invertebrates
  • 2401.99: Other (specify)

2402: Anthropology (physical)

• 2402.01: Anthropological archives
• 2402.02: Anthropological genetics
• 2402.03: Anthropometry and forensic anthropology
• 2402.04: Body composition
• 2402.05: Body constitution
• 2402.06: Ethnology
• 2402.07: Medical anthropology
• 2402.08: Nutritional habits
• 2402.09: Osteology
• 2402.10: Population biology
• 2402.11: Primate behavior
• 2402.12: Primate somatology
• 2402.13: Racial biology
• 2402.14: Somatic growth
• 2402.15: Somatic ageing
• 2402.99: Other (specify)

2403: Biochemistry

2404: Biomathematics

• 2404.01: Biostatistics
• 2404.99: Other (specify)

2405: Biometrics

2406: Biophysics

• 2406.01: Bioacoustics
• 2406.02: Bioelectricity
• 2406.03: Bioenergetics
• 2406.04: Bio-mechanics
• 2406.05: Bio-optics
• 2406.06: Medical physics
• 2406.99: Other (specify)

2407: Cell biology

• 2407.01: Cell culture
• 2407.02: Cell genetics
• 2407.03: Cell morphology
• 2407.04: Cytology
• 2407.05: Tissueculture
• 2407.90: Wall cell structure
• 2407.99: Other (specify)

2408: Ethology

• 2408.01: Animal
• 2408.02: Human
• 2408.03: Insects
• 2408.99: Other (specify)

2409: Genetics

• 2409.01: Embryology
• 2409.02: Genetic engineering
• 2409.03: Population genetics
• 2409.90: Animal citogenetics
• 2409.91: Genetic development
• 2409.92: Plant molecular genetics
• 2409.99: Other (specify)

2410: Human biology

• 2410.01: Blood groups
• 2410.02: Human anatomy
• 2410.03: Human cytology
• 2410.04: Human development
• 2410.05: Human ecology
• 2410.06: Human embryology
• 2410.07: Human genetics
• 2410.08: Human histology
• 2410.09: Human neuro-anatomy
• 2410.10: Human physiology
• 2410.11: Sensory organs
• 2410.12: Systemic anatomy
• 2410.13: Topographic anatomy
• 2410.99: Other (specify)

2411: Human physiology

• • 2411.01: Attitude physiology
  • 2411.02: Anesthesiology
  • 2411.03: Cardio-vascular physiology
  • 2411.04: Endocrine physiology
  • 2411.05: Enviromental physiology
  • 2411.06: Exercise physiology
  • 2411.07: Gastro-intestinal physiology
  • 2411.08: Human metabolisms
  • 2411.09: Human temperature regulation
  • 2411.10: Muscle physiology
  • 2411.11: Neurophysiology
  • 2411.12: Physiology of the central nervous system
  • 2411.13: Physiology of hearing
  • 2411.14: Physiology of speech
  • 2411.15: Physiology of vision
  • 2411.16: Reproduction physiology
  • 2411.17: Respiration physiology
  • 2411.18: Transport physiology
  • 2411.99: Other (specify)

2412: Immunology

• 2412.01: Antigens
• 2412.02: Antibodies
• 2412.03: Antigen-antibody reaction
• 2412.04: Antibody formation
• 2412.05: Hypersensitivity
• 2412.06: Immunisation
• 2412.07: Immunochemistry
• 2412.08: Organ transplantation
• 2412.09: Tissue antibodies
• 2412.10: Vaccines
• 2412.99: Other (specify)

2413: Insect Biology (Entomology)

• 2413.01: General entomology
• 2413.02: Insect development
• 2413.03: Insect ecology
• 2413.04: Insect morphology
• 2413.05: Insect physiology
• 2413.06: Insect taxonomy
• 2413.99: Other (specify)

2414: Microbiology

• 2414.01: Antibiotics
• 2414.02: Bacterial physiology
• 2414.03: bacterial metabolism
• 2414.04: Bacteriology
• 2414.05: Bacteriophage
• 2414.06: Fungi
• 2414.07: Microbial Metabolism
• 2414.08: Microbial processes
• 2414.09: Molds
• 2414.10: Mycology (Yeast)
• 2414.90: Microbiology: Vegetal residues degradation
• 2414.99: Other (specify)

2415: Molecular biology

• 2415.01: Molecular biology of microorganisms
• 2415.02: Plant Molecular Biology

2416: Palaeontology

• 2416.01: Animal palaentology
• 2416.02: invertebrate paleontology
• 2416.03: Palinology
• 2416.04: Plant palaeontology
• 2416.05: Vertebrate palaeontology
• 2416.99: Other (specify)

2417: Plant Biology (Botany)

• 2417.01: Bryology
• 2417.02: Dendrology
• 2417.03: General botany
• 2417.04: Limnology
• 2417.05: Marine biology
• 2417.06: Mycology (mushrooms)
• 2417.07: Phycology
• 2417.08: Phytobiology
• 2417.09: Phytopathology
• 2417.10: Paleobotany
• 2417.11: Plant anatomy
• 2417.12: Plant cytology
• 2417.13: Plant ecology
• 2417.14: Plant genetics
• 2417.15: Development growth
• 2417.16: Plant histology
• 2417.17: Plant nutrition
• 2417.18: Plant parasitology
• 2417.19: Plant physiology
• 2417.20: Plant taxonomy
• 2417.21: Pteridology
• 2417.90: Biological nutrient fixation and mobilization
• 2417.91: Biological nitrogen fixation
• 2417.92: Ripening physiology
• 2417.99: Other (specify)

2418: Radiobiology

2419: Symbiosis

2420: Virology

• 2420.01: Arbor viruses
• 2420.02: Bacteriophages
• 2420.03: Dermatropic viruses
• 2420.04: Enteric viruses
• 2420.05: Neurotropic viruses
• 2420.06: Pantropic viruses
• 2420.07: Pox viruses
• 2420.08: Respiratory viruses
• 2420.09: Viscerotropic viruses
• 2420.91: Animal virology
• 2420.99: Other (specify)

2490: Neurosciences

• 2490.01: Neurophysiology
• 2490.02: Neurochemistry

2499: Other specialties of biology (specify)

25: Earth and Space Sciences

2501: Atmospheric sciences

• 2501.01: Aeronomy
• 2501.02: Airglow
• 2501.03: Air-sea interaction
• 2501.04: Atmospheric acoustics
• 2501.05: atmospheric chemistry
• 2501.06: Atmospheric dynamics
• 2501.07: Atmospheric electricity
• 2501.08: Atmospheric optics
• 2501.09: Atmospheric radioactivity
• 2501.10: Atmospheric structure
• 2501.11: atmospheric thermodynamics
• 2501.12: Atmospheric turbulence
• 2501.13: Aurora
• 2501.14: Cloud physics
• 2501.15: Cosmic rays
• 2501.16: Dissemination (atmospheric)
• 2501.17: Geomagnetic pulsations
• 2501.18: Ionosphere
• 2501.19: Magnetospheric particles
• 2501.20: Magnetospheric waves
• 2501.21: Numerical modelling
• 2501.22: Precipitation physics
• 2501.23: Radioactive transfer
• 2501.24: Solar wind
• 2501.99: Other (specify)

2502: Climatology

• 2502.01: Analytical climatology
• 2502.02: Applied climatology
• 2502.03: Bioclimatology
• 2502.04: Microclimatology
• 2502.05: Paleoclimatology
• 2502.06: Physical climatology
• 2502.07: Regional climatology
• 2502.99: Other (specify)

2503: Geochemistry

• 2503.01: Cosmochemistry
• 2503.02: Experimental petrology
• 2503.03: Exploration geochemistry
• 2503.04: Geochronology and radio isotope
• 2503.05: High temperature geochemistry
• 2503.06: Low temperatures geochemistry
• 2503.07: Organic geochemistry
• 2503.08: Stable isotopes
• 2503.09: Trace elements distribution
• 2503.99: Other (specify)

2504: Geodesy

• 2504.01: Geodesic astronomy
• 2504.02: Geodesic cartography
• 2504.03: Geodesic navigation
• 2504.04: Geodesic photogrammetry
• 2504.05: Geodetic surveying
• 2504.06: Physical geodesy
• 2504.07: Satellite geodesy
• 2504.08: Theoretical geodesy
• 2504.99: Other (specify)

2505: Geography

• 2505.01: Biogeography
• 2505.02: Geographical cartography
• 2505.03: Geography of natural resources
• 2505.04: Land utilization
• 2505.05: Location theory
• 2505.06: Medical geography
• 2505.07: Physical geography
• 2505.08: Topographic geography
• 2505.99: Other (specify)

2506: Geology

• 2506.01: Areal geology
• 2506.02: Coal geologi
• 2506.03: Engineering geology
• 2506.04: Environmental geology
• 2506.05: Geohydrology
• 2506.06: Geological surveys
• 2506.07: Geomorphology
• 2506.08: Geothermal processes and energy
• 2506.09: Glacial geology
• 2506.10: Mineral deposits
• 2506.11: Mineralogy
• 2506.12: Petroleum geology
• 2506.13: Petrology, igneous and metamorphic
• 2506.14: Petrology, sedimentary
• 2506.15: Photogeology
• 2506.16: Remote sensing (geology)
• 2506.17: Rock mechanisms
• 2506.18: Sedimentology
• 2506.19: Stratigraphy
• 2506.20: Structural geology
• 2506.21: Volcanology
• 2506.22: Well log analysis
• 2506.99: Other (specify)

2507: Geophysics

• 2507.01: Geomagnetism and magnetic explotarion
• 2507.02: Gravity (earth) and gravity exploration
• 2507.03: Heat flow (earth)
• 2507.04: Paleomagnetism
• 2507.05: Seismology and seismic exploration
• 2507.06: Solid-earth and geophysics
• 2507.07: Tectonics
• 2507.99: Other (specify)

2508: Hydrology

• 2508.01: Erosion (water)
• 2508.02: Evaporation
• 2508.03: Glaciology
• 2508.04: Groundwater
• 2508.05: Hydrobiology
• 2508.06: Hydrography
• 2508.07: Ice
• 2508.08: Limnology
• 2508.09: Permafrost
• 2508.10: Precipitation
• 2508.11: Quality of water
• 2508.12: Snow
• 2508.13: Soil moisture
• 2508.14: Surface waters
• 2508.15: Transpiration
• 2508.99: Other (specify)

2509: Meteorology

• 2509.01: Agricultural mMeteorology
• 2509.02: Air pollution
• 2509.03: Extended weather forecasting
• 2509.04: Hydrometeorology
• 2509.05: Industrial meteorology
• 2509.06: Marine meteorology
• 2509.07: Mesometeorología
• 2509.08: Micrometeorology
• 2509.09: Numerical weather prediction
• 2509.10: Observation briefing (weather)
• 2509.11: Operational forecasting (weather)
• 2509.12: Polar meteorology
• 2509.13: Radar meteorology
• 2509.14: Radio meteorology
• 2509.15: Rocket meteorology
• 2509.16: Satellite meteorology
• 2509.17: Synoptic meteorology
• 2509.18: Tropical meteorology
• 2509.19: Weather analysis
• 2509.20: Weather modification
• 2509.99: Other (specify)

2510: Oceanography

• 2510.01: Biological oceanography
• 2510.02: Chemical oceanography
• 2510.03: Descriptive oceanography
• 2510.04: Marine botany
• 2510.05: Marine zoology
• 2510.06: Ocean-bottom processes
• 2510.07: Physical oceanography
• 2510.08: Sea-air interactions
• 2510.09: Sea ice
• 2510.10: Shore and near-shore processes
• 2510.11: Underwater sounds
• 2510.90: Marine Geology (oceanography)
• 2510.91: Renewable resources (oceanography)
• 2510.92: Marine aquaculture (oceanography)
• 2510.99: Other (specify)

2511: Soil Science (Soil Science)

• 2511.01: Soil biochemistry
• 2511.02: Soil biology
• 2511.03: soil cartography
• 2511.04: Soil chemistry
• 2511.05: Soil classification
• 2511.06: Soil xonservation
• 2511.07: Soil engineering
• 2511.08: Soil mechanics (agriculture)
• 2511.09: Soil microbiology
• 2511.10: Soil mineralogy
• 2511.11: Soil morphology and genesis
• 2511.12: Soil physics
• 2511.99: Other (specify)

2512: Science space (2104 2102 3324)

• 2512.01: Exobiology
• 2512.02: Space medicine
• 2512.03: Space physiology
• 2512.99: Other (specify)

2599: Other Earth, Space or Environmental specialities (specify)

31: Agricultural Sciences

3101: Agricultural chemistry

• • 3101.01: Dairy products
  • 3101.02: Fertilizer processing
  • 3101.03: Fertilizer utilization
  • 3101.04: Fish products
  • 3101.05: Fungicides
  • 3101.06: Herbicides
  • 3101.07: Insecticides
  • 3101.08: Non-food crop products
  • 3101.09: Pesticides
  • 3101.10: Plant growth regulators

• 3101.99: Other (specify)

3102: Agricultural engineering

• 3102.01: Agricultural mechanics
• 3102.02: Drainage
• 3102.03: Farm construction
• 3102.04: Farm equipment
• 3102.05: Irrigation (ver 3305.19)
• 3102.99: Other (specify)

3103: Agronomy

• 3103.01: Crop breeding
• 3103.02: Crop hybridisation
• 3103.03: Crop management
• 3103.04: Crop protection
• 3103.05: Cultural engineering
• 3103.06: Field crops
• 3103.07: Forage crops
• 3103.08: Management for plant production
• 3103.09: Ornamental crops
• 3103.10: Pasture
• 3103.11: Seeds
• 3103.12: Soil behavior under alternative uses
• 3103.13: Soil fertility
• 3103.14: Turf
• 3103.15: Weed control
• 3103.90: Plant propagation
• 3103.91: Combined water and fertilizer use (management)
• 3103.99: Other (specify)

3104: Animal husbandry

• 3104.01: Apiculture
• 3104.02: Bovine
• 3104.03: Breeding
• 3104.04: Care and management
• 3104.05: Equine
• 3104.06: Nutrition
• 3104.07: Ovine
• 3104.08: Porcine
• 3104.09: Poultry farming
• 3104.10: Products
• 3104.11: Reproduction
• 3104.12: Selection
• 3104.13: Sericulture
• 3104.90: Livestock production system
• 3104.99: Other (specify)

3105: Fish and wildlife

• 3105.01: Controls
• 3105.02: Fish farming
• 3105.03: Fish finding
• 3105.04: Fish preservation
• 3105.05: Fish processing
• 3105.06: Fishing mechanics
• 3105.07: Food habits
• 3105.08: Game
• 3105.09: Habitat influences
• 3105.10: Population dynamics
• 3105.11: Propagation and management
• 3105.12: Wild life conservation and management
• 3105.99: Other (specify)

3106: Forestry

• 3106.01: Conservation
• 3106.02: Cultural engineering
• 3106.03: Erosion control
• 3106.04: Management
• 3106.05: Products
• 3106.06: Protection
• 3106.07: Range management
• 3106.08: Sylviculture
• 3106.09: Watershed management
• 3106.99: Other (specify)

3107: Horticulture

• 3107.01: Breeding
• 3107.02: Cultural engineering
• 3107.03: Floriculture
• 3107.04: Fruit
• 3107.05: Hybridisation
• 3107.06: Vegetables
• 3107.99: Other (specify)

3108: Phytopathology

• 3108.01: Bacteria
• 3108.02: Disease control, biological
• 3108.03: Disease control, chemical
• 3108.04: Disease control, enviromental
• 3108.05: Fungi
• 3108.06: Nematodes
• 3108.07: Physiogenesis
• 3108.08: Plant susceptibility, resistance
• 3108.09: Viruses
• 3108.99: Other (specify)

3109: Veterinary sciences

• 3109.01: Anatomy
• 3109.02: Genetics
• 3109.03: Immunology
• 3109.04: Internal medicine
• 3109.05: Microbiology
• 3109.06: Nutrition
• 3109.07: Pathology
• 3109.08: Pharmacology
• 3109.09: Physiology
• 3109.10: Surgery
• 3109.11: Virology
• 3109.99: Other (specify)

3199: Other agricultural specialities (specify)

32: Medical Sciences

3201: Clinical Sciences

• 3201.01: Cancerology
• 3201.02: Clinical Genetics
• 3201.03: clinical microbiology
• 3201.04: Clinical pathology
• 3201.05: Clinical psychology
• 3201.06: Dermatology
• 3201.07: Geriatrics
• 3201.08: Gynaecology
• 3201.09: Ophthalmology
• 3201.10: Pediatrics
• 3201.11: Radiology
• 3201.12: Radiotherapy
• 3201.13: Syphilography
• 3201.99: Other (specify)

3202: Epidemiology

3203: Forensic Medicine

3204: Occupational medicine

• 3204.01: Nuclear medicine
• 3204.02: Occupational diseases
• 3204.03: Occupational health
• 3204.04: Rehabilitation (medical)
• 3204.99: Other (specify)

3205: Internal medicine

• 3205.01: Cardiology
• 3205.02: Endocrinology
• 3205.03: Gastro-enterology
• 3205.04: Haematology
• 3205.05: Infectious diseases
• 3205.06: Nephrology
• 3205.07: Neurology
• 3205.08: Pulmonary diseases
• 3205.09: Rheumatology
• 3205.99: Other (specify)

3206: Nutritional sciences

• 3206.01: Digestion
• 3206.02: Energy metabolism
• 3206.03: Natural toxicants
• 3206.04: Food deficiencies
• 3206.05: Food pathogens
• 3206.06: Food requirements
• 3206.07: Mineral elements in food
• 3206.08: Nutrients
• 3206.09: Nutrient values
• 3206.10: Nutritional diseases
• 3206.11: Toxicity of food
• 3206.12: Trace elements in food
• 3206.13: Vitamins
• 3206.99: Other (specify)

3207: Pathology

• 3207.01: Allergies
• 3207.02: Atherosclerosis
• 3207.03: Carcinogenesis
• 3207.04: Cardio-vascular pathology
• 3207.05: Comparative pathology
• 3207.06: Endotoxins
• 3207.07: Experimental pathology
• 3207.08: Haematology
• 3207.09: Histopathology
• 3207.10: Immunopathology
• 3207.11: Neuropathology
• 3207.12: Parasitology
• 3207.13: Oncology
• 3207.14: Osteopathology
• 3207.15: Radiation pathology
• 3207.16: Stress
• 3207.17: Teratology (study of monsters)
• 3207.18: Thrombosis
• 3207.99: Other (specify)

3208: Pharmacodynamics

• 3208.01: Absorption of drugs
• 3208.02: Action of drugs
• 3208.03: Activation, multiple processes
• 3208.04: Active locations, receptors
• 3208.05: Catalysis, autocatalysis, inmunocatalysis
• 3208.06: Chemotherapy
• 3208.07: Interaction of antigens
• 3208.08: Mechanisms of action of drugs
• 3208.09: drug metabolic processes
• 3208.99: Other (specify)

3209: Pharmacology

• 3209.01: Analysis of pharmaceuticals
• 3209.02: Composition of drugs
• 3209.03: Evaluation of drugs
• 3209.04: Naturally occurring drugs
• 3209.05: Pharmacognosy
• 3209.06: Pharmacopoeas
• 3209.07: Phytopharmaceuticals
• 3209.08: Preparation of drugs
• 3209.09: Psychopharmacology
• 3209.10: Radiopharmaceuticals
• 3209.11: Standardization of drugs
• 3209.12: Synthetic drugs
• 3209.99: Other (specify)

3210: Preventive medicine

3211: Psychiatry

3212: Public health

3213: Surgery

• 3213.01: Abdominal surgery
• 3213.02: Aesthetic surgery
• 3213.03: Anaesthesiology
• 3213.04: Bone surgery
• 3213.05: Ear-nose-throat surgery
• 3213.06: Experimental surgery
• 3213.07: Heart surgery
• 3213.08: Neurosurgery
• 3213.09: Ocular surgery
• 3213.10: Orthopaedic surgery
• 3213.11: Physiotherapy
• 3213.12: Proctology
• 3213.13: Stomatology-orthodonty
• 3213.14: Transplantation surgery
• 3213.15: Traumatology
• 3213.16: Urology
• 3213.17: Vascular surgery
• 3213.99: Other (specify)

3214: Toxicology

3299: Other medical specialties (specify)

33: Technological Sciences

3301: Aeronautical technology and engineering

• 3301.01: Aerodynamics
• 3301.02: Aerodynamic loads
• 3301.03: Aerodynamic theory
• 3301.04: Aircraft
• 3301.05: aviation fuels, combustion
• 3301.06: Aircraft structures
• 3301.07: Air cushion devices
• 3301.08: Airports and air transport
• 3301.09: Compressors and turbines
• 3301.10: Flight tests and research
• 3301.11: Flutter and vibration
• 3301.12: Hydrodynamics
• 3301.13: Instrumentation (aviation)
• 3301.14: Landing loads
• 3301.15: Propulsion systems
• 3301.16: Propulsion system materials
• 3301.17: Rotary wing
• 3301.18: Stability and control
• 3301.99: Other (specify)

3302: Biochemical technology

• 3302.01: Antibiotics technology
• 3302.02: Fermentation technology
• 3302.03: Industrial microbiology
• 3302.90: Biochemical engineering
• 3302.99: Other (specify)

3303: Chemical technology and engineering

• 3303.01: Catalysis technology
• 3303.02: Chemical economics
• 3303.03: Chemical processes
• 3303.04: Chemical separation
• 3303.05: Chemical synthesis
• 3303.06: Combustion technology
• 3303.07: Corrosion technology
• 3303.08: Deionization
• 3303.09: Electrochemical operations
• 3303.10: Electroplating
• 3303.11: Industrial chemistry
• 3303.12: Nuclear-chemical processes
• 3303.13: Preservation technology
• 3303.14: Protective coatings
• 3303.15: Refractory coating
• 3303.16: Water repellent coatings
• 3303.90: Technology Chemical Surfactants
• 3303.99: Other (specify)

3304: Computer technology

• 3304.01: Analog computers
• 3304.02: analog-digital converters
• 3304.03: Arithmetic and machine instructions
• 3304.04: Central processing units
• 3304.05: Character recognition systems
• 3304.06: Computer architecture
• 3304.07: Computer peripherals
• 3304.08: Computer reliability
• 3304.09: Computer serviceability
• 3304.10: Computer terminals, graphic display devices and plotters
• 3304.11: Computing systems design
• 3304.12: Control devices
• 3304.13: Data transmission devices
• 3304.14: Digital computers
• 3304.15: Hybrid computers
• 3304.16: Logical design
• 3304.17: Real-time systems
• 3304.18: Storage devices
• 3304.99: Other (specify)

3305: Construction technology

• 3305.01: Architectural design
• 3305.02: Airports construction
• 3305.03: Buildings, large and skyscrapers
• 3305.04: Bridges
• 3305.05: Concrete (technology of)
• 3305.06: Civil engineering
• 3305.07: Dams
• 3305.08: Drainage
• 3305.09: Excavations
• 3305.10: Foundations
• 3305.11: Harbours
• 3305.12: Heavy constructions
• 3305.13: Highways
• 3305.14: Houses
• 3305.15: Hydraulic engineering
• 3305.16: Hyperstatic systems
• 3305.17: Industrial and commercial buildings
• 3305.18: Inland waterways
• 3305.19: Irrigation
• 3305.20: Light constructions
• 3305.21: Metallic constructions
• 3305.22: Metrology of building
• 3305.23: Organization of works
• 3305.24: Prefabricated constructions
• 3305.25: Prefabricated concrete
• 3305.26: Public buildings
• 3305.27: Railway construction
• 3305.28: Regulations, codes and specifications
• 3305.29: Road construction
• 3305.30: Sewers and water purification
• 3305.31: Soil mechanics (construction)
• 3305.32: Structural engineering
• 3305.33: Structural strength
• 3305.34: Topography of building
• 3305.35: Tunnels
• 3305.36: Underground works
• 3305.37: Urban planning
• 3305.38: Water supply
• 3305.39: Wood constructions
• 3305.90: Heat transfer in building
• 3305.99: Other (specify)

3306: Electrical technology and engineering

• 3306.01: Direct current power utilization
• 3306.02: Electrical applications
• 3306.03: Electric motors
• 3306.04: Electric lighting
• 3306.05: Insulated conductors
• 3306.06: Manufacture of electrical equipment
• 3306.07: Rotating machinery
• 3306.08: Switchgear
• 3306.09: Transmission and distribution
• 3306.99: Other (specify)

3307: Electronic Technology

• 3307.01: Antennae
• 3307.02: Audio-electronics
• 3307.03: Circuit design
• 3307.04: Electro-acoustic transducers
• 3307.05: Electron tubes
• 3307.06: Filter design
• 3307.07: Laser devices
• 3307.08: Microwave devices
• 3307.09: Photo-electric devices
• 3307.10: Radar
• 3307.11: Radio receivers
• 3307.12: Radio transmitters
• 3307.13: Recording devices
• 3307.14: Semi-conductor devices
• 3307.15: Sonar devices
• 3307.16: Sonic devices
• 3307.17: Thermo-electric devices
• 3307.18: Thermo-ionic devices
• 3307.19: Transistors
• 3307.20: TV emitters (transmitters)
• 3307.21: TV receivers (See 3325.09)
• 3307.22: Ultrasonic devices
• 3307.23: X-ray devices
• 3307.90: Microelectronics
• 3307.91: Microelectronics: Silicon Technology
• 3307.92: Microelectronics: III-V Technologies and alternatives
• 3307.93: Microelectronics: Design
• 3307.99: Other (specify)

3308: Environmental technology and enviromental

• 3308.01: Air pollution control
• 3308.02: industrial wastes
• 3308.03: Insect control technology
• 3308.04: Pollution engineering
• 3308.05: Radio active waste disposal
• 3308.06: Reclamation of water
• 3308.07: Refuse disposal
• 3308.08: Rodent control technology
• 3308.09: Sanitary engineering
• 3308.10: Sewage technology
• 3308.11: Water pollution control
• 3308.99: Other (specify)

3309: Food technology

• 3309.01: Alcoholic beverages
• 3309.02: Animal feed
• 3309.03: Antioxidants in food
• 3309.04: Bakery
• 3309.05: Brewing
• 3309.06: Canning
• 3309.07: Cereal products
• 3309.08: Colours
• 3309.09: Dairy products
• 3309.10: Flavour
• 3309.11: Flour milling
• 3309.12: Food additives
• 3309.13: Food preservation
• 3309.14: Food processing
• 3309.15: Food sanitation
• 3309.16: Freeze-drying
• 3309.17: Lyophilization
• 3309.18: Non-alcoholic beverages
• 3309.19: Pasteurization
• 3309.20: Properties of food
• 3309.21: Protein foods
• 3309.22: Refrigeration
• 3309.23: Stabilisers
• 3309.24: Starch
• 3309.25: Sterilisation of food
• 3309.26: Sugar
• 3309.27: Synthetic foods
• 3309.28: Vegetable oils and fats
• 3309.29: Wine
• 3309.90: Microbiology of food
• 3309.91: Keeping postharvest
• 3309.92: Biochemistry and microbiology of fermentation processes
• 3309.93: Canned vegetables
• 3309.95: Food technology: Heat transfer
• 3309.99: Other (specify)

3310: Industrial Technology

• 3310.01: Industrial equipment
• 3310.02: Industrial machinery
• 3310.03: Industrial processes
• 3310.04: Maintenance engineering
• 3310.05: Processing engineering
• 3310.06: Process specifications
• 3310.07: Time and motion study
• 3310.99: Other (specify)

3311: Instrumentation Technology

• 3311.01: Automation technology
• 3311.02: Control engineering
• 3311.03: Dental instruments
• 3311.04: Electro-optical devices
• 3311.05: Electrical test equipment
• 3311.06: Electrical instruments
• 3311.07: Electronic instruments
• 3311.08: Laboratory equipment
• 3311.09: Lenses
• 3311.10: Medical instruments
• 3311.11: Optical instruments
• 3311.12: Photographic and cinematographic equipment
• 3311.13: Scientific apparatus
• 3311.14: Servomechanisms
• 3311.15: Telechiric techniques
• 3311.16: Temperature measurement instruments
• 3311.17: Test equipment
• 3311.18: Thermo static instruments
• 3311.19: Timing Devices
• 3311.99: Other (specify)

3312: Materials Technology

• 3312.01: Abrasives
• 3312.02: Binders
• 3312.03: Ceramics
• 3312.04: Cermets
• 3312.05: Clay products
• 3312.06: Glass
• 3312.07: Limes
• 3312.08: Material properties
• 3312.09: Material resistance
• 3312.10: Plastics
• 3312.11: Refractories
• 3312.12: Testing of materials
• 3312.13: Wood technology
• 3312.99: Other (specify)

3313: Mechanical Engineering and Technology

• 3313.01: Air blowers
• 3313.02: Air compressors
• 3313.03: Bearings
• 3313.04: Construction equipment
• 3313.05: Dies, jigs and patterns
• 3313.06: Farm machinery
• 3313.07: Food machinery
• 3313.08: Gas engines
• 3313.09: Gears
• 3313.10: Heating equipment
• 3313.11: Hydraulic machinery
• 3313.12: Industrial machinery and equipment
• 3313.13: Internal combustion engines (general)
• 3313.14: Machine tools and accessories
• 3313.15: Machine design
• 3313.16: Materials handling equipment
• 3313.17: Mechanized operations
• 3313.18: Mining machinery
• 3313.19: Nuclear machinery
• 3313.20: Papermaking machinery
• 3313.21: Petrleum extracting machinery
• 3313.22: Pneumatic equipment
• 3313.23: Power transmission equipment (mechanical)
• 3313.24: Printing and duplicating machinery
• 3313.25: Pumps and liquid handling equipment
• 3313.26: Refrigerating equipment
• 3313.27: specialized industrial machinery
• 3313.28: Steam engines
• 3313.29: Textile machinery
• 3313.30: Turbines
• 3313.31: Vending and service machinery
• 3313.99: Other (specify)

3314: Medical technology

• 3314.01: Artificial organs
• 3314.02: Prosthetic devices
• 3314.99: Other (specify)

3315: Metallurgical technology

• 3315.01: Aluminum
• 3315.02: Copper
• 3315.03: Electrometallurgical products
• 3315.04: Foundries (general)
• 3315.05: Iron and steel mills, foundries and forges
• 3315.06: Lead and zinc
• 3315.07: Metallurgical products (special)
• 3315.08: Metallurgical Services
• 3315.09: Non-ferrous smelting, refining and processing
• 3315.10: Non-ferrous castings
• 3315.11: Powder metallurgy
• 3315.12: Precious metals
• 3315.13: Precision casting
• 3315.14: Radioactive metals
• 3315.15: Rare metals
• 3315.16: Refining, including zone refining
• 3315.17: Refractory metals
• 3315.90: Non-ferrous extractive metallurgy
• 3315.99: Other (specify)

3316: Metal products technology

• 3316.01: autoclaves and boilers
• 3316.02: Cans and containers
• 3316.03: Distilling equipment
• 3316.04: Electroplated and coated products
• 3316.05: Furnaces, ovens, kilns
• 3316.06: Hardware
• 3316.07: Machined, and turned products
• 3316.08: Metal fabrication services
• 3316.09: Pipes, fittings and valves
• 3316.10: Pressure vessels
• 3316.11: sheet metal products
• 3316.12: Stampings
• 3316.13: Structural steel products
• 3316.14: Weldings
• 3316.15: Wire products
• 3316.99: Other (specify)

3317: motor vehicle technology

• 3317.01: All terrain vehicles
• 3317.02: Automobiles
• 3317.03: Buses, lorries and trailers
• 3317.04: Diesel engines
• 3317.05: Motor cycles
• 3317.06: Motor transport services
• 3317.07: Parts and accessories
• 3317.08: Piston engines
• 3317.09: Rotating engines
• 3317.10: Traffic engineering
• 3317.99: Other (specify)

3318: Mining technology

• 3318.01: Coal minning
• 3318.02: Concentration of ores
• 3318.03: Iron ores
• 3318.04: Mining services
• 3318.05: Non-ferrous metal ores
• 3318.06: Non-metallic minerals
• 3318.07: Quarry products
• 3318.08: Sulphur
• 3318.09: Uranium and radioactive ores
• 3318.99: Other (specify)

3319: Naval Technology

• 3319.01: Air cushion devices
• 3319.02: Boats
• 3319.03: Inland waterway craft
• 3319.04: Marine auxiliaries
• 3319.05: Marine engines
• 3319.06: Marine transportation
• 3319.07: Merchant ships
• 3319.08: Naval architecture
• 3319.09: Ocean transport
• 3319.10: Propellers
• 3319.11: Shafting
• 3319.12: Shipbuilding
• 3319.13: Underwater craft
• 3319.99: Other (specify)

3320: Nuclear technology

• 3320.01: Isotope applications
• 3320.02: Isotope separation
• 3320.03: Nuclear explosions
• 3320.04: Nuclear fission reactors
• 3320.05: Nuclear fusion reactors
• 3320.06: Nuclear tests
• 3320.99: Other (specify)

3321: Petroleum and coal technology

• 3321.01: Asphaltic materials
• 3321.02: Coal chemicals
• 3321.03: Crude petroleum
• 3321.04: Gas pipelines
• 3321.05: Liquefied gas
• 3321.06: Lubricating oil and grease
• 3321.07: Natural Gas
• 3321.08: Oilfield equipment
• 3321.09: Oilfield services
• 3321.10: Oil pipelines
• 3321.11: Petrochemicals
• 3321.12: Petroleum products: petrol, oils, waxes
• 3321.13: Refinery’s Design
• 3321.14: Storage (oil and gas)
• 3321.90: Coals characterization
• 3321.99: Other (specify)

3322: Power technology

• 3322.01: Power distribution
• 3322.02: Power generation
• 3322.03: Power generators
• 3322.04: Power transmission
• 3322.05: unconventional sources of energy
• 3322.99: Other (specify)

3323: Railway technology

• 3323.01: Locomotives
• 3323.02: Railroad equipment
• 3323.03: Railway services
• 3323.04: Rapid transit
• 3323.05: Rolling stock
• 3323.99: Other (specify)

3324: Space Technology

• 3324.01: Artificial satellites
• 3324.02: Missiles: launching and recovery
• 3324.03: Missile facilities
• 3324.04: Rocket engines
• 3324.05: Space craft
• 3324.06: Space tracking
• 3324.07: Vehicle control
• 3324.99: Other (specify)

3325: Telecommunications technology

• 3325.01: Broadcasting, sound and television
• 3325.02: Cable television
• 3325.03: Cinematography
• 3325.04: Microwave links
• 3325.05: Radiocommunications
• 3325.06: Satellite communications
• 3325.07: Telegraph
• 3325.08: Telephone
• 3325.09: Television
• 3325.99: Other (specify)

3326: Textile technology

• 3326.01: Cotton
• 3326.02: Flax
• 3326.03: Jute
• 3326.04: Spinning
• 3326.05: Synthetic textiles
• 3326.06: Weaving
• 3326.07: Wool
• 3326.99: Other (specify)

3327: Transportation systems technology

• 3327.01: Airlines operations, air-traffic control
• 3327.02: Traffic analysis
• 3327.03: Urban Transit systems
• 3327.04: Combinations of systems
• 3327.99: Other (specify)

3328: Technological process

• 3328.01: Absorption
• 3328.02: Agitation
• 3328.03: Centrifugation
• 3328.04: Compressing
• 3328.05: Crystallisation
• 3328.06: Deionisation
• 3328.07: Distillation and condensation
• 3328.08: Drying
• 3328.09: Evaporation
• 3328.10: Filtration
• 3328.11: Flotation
• 3328.12: Flow through porous media
• 3328.13: Fluidization of solids
• 3328.14: Freeze-drying
• 3328.15: Handling of solids
• 3328.16: Heat transfer
• 3328.17: Liquid-liquid extraction
• 3328.18: Mass Transfer
• 3328.19: Mixing
• 3328.20: Pipes, fittings and valves
• 3328.21: Pumping
• 3328.22: Screening
• 3328.23: Sedimentation
• 3328.24: Size-reduction
• 3328.25: Solid-liquid extraction
• 3328.26: Refrigeration
• 3328.27: Vapor-liquid transfer
• 3328.99: Other (specify)

3329: Urban Planning

• 3329.01: Building Codes
• 3329.02: Communications
• 3329.03: Community organization
• 3329.04: Land Use
• 3329.05: Regional development
• 3329.06: Sanitary services
• 3329.07: Transportation
• 3329.08: Urban environment
• 3329.09: Urban-ural relations
• 3329.99: Other (specify)

3399: Other technological specialities (specify)

51: Anthropology

5101: Cultural anthropology

• 5101.01: Adornment
• 5101.02: Clothing
• 5101.03: Dances, feasts
• 5101.04: Ethno-musicology
• 5101.05: Ethnolinguistics
• 5101.06: Museology
• 5101.07: Myths
• 5101.08: Magic
• 5101.09: Poems, stories
• 5101.10: Religion
• 5101.11: Sorcery
• 5101.12: Symbolism
• 5101.13: Traditional medicine
• 5101.14: Tradition
• 5101.99: Other (specify)

5102: Ethnography and Ethnology

• 5102.01: Agriculture
• 5102.02: Arms
• 5102.03: Barter
• 5102.04: Exchange
• 5102.05: Habitat
• 5102.06: Handicraft
• 5102.07: Hunting
• 5102.08: Fishing
• 5102.09: Foraging
• 5102.10: Metallurgy
• 5102.11: Stockraising
• 5102.99: Other (specify)

5103: Social anthropology

• 5103.01: Chiefdom, royalty
• 5103.02: Descent, family, kinship
• 5103.03: Nomadism
• 5103.04: Slavery, bondage
• 5103.05: War
• 5103.99: Other (specify)

5199: Other anthropological specialities (specify)

52: Demographics

5201: Fertility

• 5201.01: Birth rate
• 5201.02: General fertility
• 5201.03: Illegitimacy
• 5201.04: Marriages rate
• 5201.05: Sterility and fecundity
• 5201.99: Other (specify)

5202: General demography

• 5202.01: Methodology of research
• 5202.02: Methodology of analysis
• 5202.03: Theory
• 5202.99: Other (specify)

5203: Geographical demography

• 5203.01: Internal mobility and migrations
• 5203.02: International mobility and migrations
• 5203.03: Local Demography
• 5203.04: Regional Demography
• 5203.05: Rural Demography
• 5203.06: Urban Demography
• 5203.99: Other (specify)

5204: Historical Demography

• 5204.01: Fertility and marriage rate
• 5204.02: Methodological aspects
• 5204.03: Migration
• 5204.04: Mortality
• 5204.05: Sources of observation
• 5204.06: Theoretical aspects
• 5204.99: Other (specify)

5205: Mortality

• 5205.01: Causes of mortality
• 5205.02: General mortality
• 5205.03: Infant mortality
• 5205.04: prenatal and perinatal mortality
• 5205.05: Related variables
• 5205.99: Other (specify)

5206: Population characteristics

• 5206.01: Active population
• 5206.02: Age distribution
• 5206.03: Ageing of the population
• 5206.04: Biological characteristics
• 5206.05: Epidemiological characteristics
• 5206.06: General demographic structures
• 5206.07: Morbidity
• 5206.08: Population genetics
• 5206.09: Sex
• 5206.10: Socio-economic characteristics
• 5206.99: Other (specify)

5207: Population size and demographic evolution

• 5207.01: Computational demography
• 5207.02: Demographic transition
• 5207.03: Demographic analysis
• 5207.04: Population censuses and other data collection
• 5207.05: Population estimates
• 5207.06: Population forecasts
• 5207.07: Population growth
• 5207.08: Population models
• 5207.09: Population projections
• 5207.10: Statistics of population
• 5207.99: Other (specify)

5299: Other demographic specialities (specify)

53: Economic Sciences

5301: Domestic fiscal policy and public finance

• 5301.01: Fiscal policy and public debt
• 5301.02: Public finance (budget)
• 5301.99: Other (specify)

5302: Econometrics

• 5302.01: Economic indicators
• 5302.02: Econometric models
• 5302.03: Economic projection
• 5302.04: Economic statistics
• 5302.05: Economic time-series
• 5302.99: Other (specify)

5303: Economic accounting

• 5303.01: Financial accounts
• 5303.02: National wealth and balance sheets
• 5303.03: National income accounting
• 5303.04: Input-output
• 5303.05: Social accounts
• 5303.99: Other (specify)

5304: Economic activity

• 5304.01: Consumption, savings, investment
• 5304.02: Distribution
• 5304.03: Domestic trade
• 5304.04: Foreign trade
• 5304.05: Insurance
• 5304.06: Money and banking
• 5304.07: Production
• 5304.08: Re-distribution
• 5304.99: Other (specify)

5305: Economic Systems

• 5305.01: Capitalist economic systems
• 5305.02: Collectivist economic systems
• 5305.03: Comparative economic systems
• 5305.04: Socialist economic systems
• 5305.99: Other (specify)

5306: Economics of technological change

• 5306.01: Economics of research and experimental development
• 5306.02: Technological innovation
• 5306.03: Transfer of technology
• 5306.99: Other (specify)

5307: Economic theory

• 5307.01: Capital formation
• 5307.02: Credit theory
• 5307.03: Economic development models and theories
• 5307.04: Economic development studies
• 5307.05: Economic equilibrium
• 5307.06: Economic fluctuations
• 5307.07: economic forecasting
• 5307.08: Economic growth theory
• 5307.09: Economic planning theory
• 5307.10: Employment theory and models
• 5307.11: Fiscal theory
• 5307.12: International trade theory
• 5307.13: Investment theory
• 5307.14: Macro-economic Theory
• 5307.15: Micro-economic Theory
• 5307.16: Monetary theory
• 5307.17: Savings theory
• 5307.18: Stabilization theories
• 5307.19: Welfare theory
• 5307.99: Other (specify)

5308: General economics

• 5308.01: Economic methodology
• 5308.02: Consumer Behavior
• 5308.03: History of economic thought
• 5308.99: Other (specify)

5309: Industrial organization and public policy

• 5309.01: Economic concentration
• 5309.02: Economic integration
• 5309.03: Government regulation of the private sector
• 5309.04: Market structure
• 5309.05: Monopoly and competition
• 5309.06: Public enterprises
• 5309.07: Public utilities
• 5309.99: Other (specify)

5310: International economics

• 5310.01: Balance of payments
• 5310.02: Foreign aid
• 5310.03: International aid
• 5310.04: International business
• 5310.05: International economic policy
• 5310.06: International Finance
• 5310.07: International investment
• 5310.08: International monetary arrangements
• 5310.09: International trade relations
• 5310.90: International economy: American area
• 5310.91: International economy: European area
• 5310.99: Other (specify)

5311: Organization and management of enterprises

• 5311.01: Advertising
• 5311.02: Financial management
• 5311.03: Industry Studies
• 5311.04: Manpower management
• 5311.05: Marketing
• 5311.06: Market studies
• 5311.07: Operations research
• 5311.08: Optimum production levels
• 5311.09: Organization of production
• 5311.10: Sales management
• 5311.99: Other (specify)

5312: Sectorial economics

• 5312.01: Agriculture, forestry, fishing
• 5312.02: Community, social and personal services
• 5312.03: Construction
• 5312.04: Education
• 5312.05: Energy
• 5312.06: Finance and insurance
• 5312.07: Health
• 5312.08: Manufacturing
• 5312.09: Mining
• 5312.10: Research and development
• 5312.11: Trade and commerce
• 5312.12: Transport and communications
• 5312.90: Tourism
• 5312.99: Other (specify)

5399: Other seconomic specialities

54: Geography

5401: Economic Geography

• 5401.01: Distribution of natural resources
• 5401.02: Geography of economic activities
• 5401.03: Land utilisation
• 5401.04: Regional development
• 5401.99: Other (specify)

5402: Historical geography

5403: Human geography

• 5403.01: Cultural geography
• 5403.02: Demo-geography
• 5403.03: Linguistic geography
• 5403.04: Geography of religion
• 5403.05: Political geography
• 5403.06: Social geography
• 5403.99: Other (specify)

5404: Regional geography

• 5404.01: Urban geography
• 5404.02: Rural geography
• 5404.99: Other (specify)

5499: Other geographical specialities (specify)

55: History

5501: Biographies

5502: General History

• 5502.01: Comparative History
• 5502.02: Historiography
• 5502.03: Historical monographs
• 5502.04: Theories and methods
• 5502.99: Other (specify)

5503: History of countries

• 5503.01: Local history
• 5503.02: Regional history
• 5503.99: Other (specify)

5504: History by epochs

• 5504.01: Ancient history
• 5504.02: Contemporary history
• 5504.03: Medieval history
• 5504.04: Modern history
• 5504.05: Prehistory
• 5504.99: Other (specify)

5505: Sciences auxiliary to history

• 5505.01: Archaeology
• 5505.02: Ceramology
• 5505.03: Epigraphy
• 5505.04: Heraldry
• 5505.05: Iconography
• 5505.06: Numismatics
• 5505.07: Onomastics
• 5505.08: Paleography
• 5505.09: Papyrology
• 5505.10: Philology
• 5505.11: Sigillography
• 5505.12: Stratigraphy
• 5505.99: Other (specify)

5506: Specialized histories

• 5506.01: History of architecture
• 5506.02: History of art
• 5506.03: History of astronomy
• 5506.04: History of biology
• 5506.05: History of chemistry
• 5506.06: History of economics
• 5506.07: History of education
• 5506.08: History of geography
• 5506.09: History of geology
• 5506.10: History of international relations
• 5506.11: History of journalism
• 5506.12: History of law and legal institutions
• 5506.13: History of Literature
• 5506.14: History of linguistics
• 5506.15: History of logic
• 5506.16: History of the magistrature
• 5506.17: History of medicine
• 5506.18: History of philosophy
• 5506.19: History of physics
• 5506.20: History of political ideas
• 5506.21: History of religions
• 5506.22: History of science
• 5506.23: History of sociology
• 5506.24: History of technology
• 5506.25: History of war
• 5506.90: History of botany
• 5506.99: Other (specify)

5599: Other historical specialities (specify)

56: Juridical Sciences and Law

5601: Canon law

5602: General theory and methods

• 5602.01: Common law
• 5602.02: Comparative law
• 5602.03: Jurisprudence
• 5602.04: Law of antiquity
• 5602.05: Natural law
• 5602.06: Statute law
• 5602.99: Other (specify)

5603: International law

• 5603.01: Aviation law
• 5603.02: Maritime law
• 5603.03: Outer-space law
• 5603.04: Sea-bed law
• 5603.99: Other (specify)

5604: Legal organization

• 5604.01: Court officials and procedures
• 5604.02: Magistrature
• 5604.03: Tribunals
• 5604.99: Other (specify)

5605: National law and legislation

• 5605.01: Administrative law
• 5605.02: Civil law
• 5605.03: Commercial law
• 5605.04: Constitutional law
• 5605.05: Criminal law
• 5605.06: Fiscal law
• 5605.07: Public legislation
• 5605.08: Private law
• 5605.99: Other (specify)

5699: Other legal specialities (specify)

57: Linguistics

5701: Applied linguistics

• 5701.01: Abstracting
• 5701.02: Automated documentation
• 5701.03: Bilingualism
• 5701.04: Computational linguistics
• 5701.05: Documentary languages
• 5701.06: Documentation
• 5701.07: Language and literature
• 5701.08: Language of children
• 5701.09: Machine translation
• 5701.10: Speech pathology and correction
• 5701.11: Teaching of languages
• 5701.12: Translation
• 5701.99: Other (specify)

5702: Diachronic linguistics

• 5702.01: Historical linguistics
• 5702.02: Etymology
• 5702.99: Other (specify)

5703: Linguistic geography

5704: Linguistic theory

5705: Synchronic linguistics

• 5705.01: Comparative linguistics
• 5705.02: Ethnolinguistics
• 5705.03: Lexicography
• 5705.04: Lexicology
• 5705.05: Phonetics
• 5705.06: Phonology
• 5705.07: Psycholinguistics
• 5705.08: Semantics
• 5705.09: Semiology
• 5705.10: Sociolinguistics
• 5705.11: Spelling
• 5705.12: Stylistics (style and rhetoric)
• 5705.13: Syntax, syntactic analysis
• 5705.99: Other (specify)

5799: Other specialities language (specify)

58: Pedagogy

5801: Educational theory and methods

• 5801.01: Audio-visual methods
• 5801.02: Comparative pedagogy
• 5801.03: Curriculum development
• 5801.04: Educational theories
• 5801.05: Experimental pedagogy
• 5801.06: Pupil and student assessment
• 5801.07: Pedagogical methods
• 5801.08: Programmed instruction
• 5801.99: Other (specify)

5802: Organization and planning of education

• 5802.01: Adult Education
• 5802.02: Educational institutions; organization and management
• 5802.03: Educational planning and financing
• 5802.04: Levels and subjects of education
• 5802.05: Special Education: handicapped, mentally retarded
• 5802.06: Statistical analysis, modelling and projection
• 5802.07: Vocational education and training
• 5802.99: Other (specify)

5803: Teacher training and employment

• 5803.01: Career and status of teachers
• 5803.02: Training of teachers
• 5803.99: Other (specify)

5899: Other specialities pedagogical (specify)

59: Political Science

5901: International relations

• 5901.01: International co-operation
• 5901.02: International organizations
• 5901.03: International politics
• 5901.04: International treaties and agreements
• 5901.05: Problems of international relations
• 5901.99: Other (specify)

5902: Policy sciences

• 5902.01: Agricultural policy
• 5902.02: Cultural policy
• 5902.03: Commercial policy
• 5902.04: Communications policy
• 5902.05: Demographic policy
• 5902.06: Economic policy
• 5902.07: Educational policy
• 5902.08: Environmental policy
• 5902.09: Foreign policy
• 5902.10: Health policy
• 5902.11: Industrial policy
• 5902.12: Information policy
• 5902.13: Policy planning
• 5902.14: Science and technology policy
• 5902.15: Social policy
• 5902.16: Transport policy
• 5902.99: Other (specify)

5903: Political Ideologies

5904: Political Institutions

• 5904.01: Executive power
• 5904.02: Judiciary power
• 5904.03: Legislative power
• 5904.04: Relations between the powers
• 5904.99: Other (specify)

5905: Political life

• 5905.01: Elections
• 5905.02: Political behavior
• 5905.03: political groups
• 5905.04: Political leadership
• 5905.05: political movements
• 5905.06: Political parties
• 5905.99: Other (specify)

5906: Political sociology

• 5906.01: Human rights
• 5906.02: Languages
• 5906.03: Minorities
• 5906.04: Race
• 5906.05: Religion
• 5906.06: Social conflicts
• 5906.99: Other (specify)

5907: Political systems

• 5907.90: Political systems: American Area

5908: Political theory

5909: Public administration

• 5909.01: Administrative management
• 5909.02: Central institutions
• 5909.03: Civil service
• 5909.04: Public services
• 5909.05: Regional institutions
• 5909.99: Other (specify)

5910: Public opinion

• 5910.01: Information
• 5910.02: Mass media
• 5910.03: Press
• 5910.04: Propaganda
• 5910.99: Other (specify)

5999: Other specialties policies (specify)

61: Psychology

6101: Abnormal psychology

• 6101.01: Behaviour disorders
• 6101.02: Deviant behavior
• 6101.03: Mental deficiency
• 6101.04: Psychopathology
• 6101.99: Other (specify)

6102: Adolescent and child psychology

• 6102.01: Development psychology
• 6102.02: Learning disabilities
• 6102.03: Mental retardation
• 6102.04: School psychology
• 6102.05: Speech pathology
• 6102.99: Other (specify)

6103: Counselling and guidance

• 6103.01: Behavior therapy
• 6103.02: Consulting psycholgy
• 6103.03: Educational counselling and guidance
• 6103.04: Group therapy
• 6103.05: Mental retardation
• 6103.06: Psychoanalysis
• 6103.07: Psychotherapy
• 6103.08: Rehabilitation
• 6103.09: Vocational guidance
• 6103.99: Other (specify)

6104: Educational psychology

• 6104.01: Cognitive functioning
• 6104.02: Educational methods
• 6104.03: Laws of learning
• 6104.04: Psycholinguistics
• 6104.99: Other (specify)

6105: Evaluation and measurement in psychology

• 6105.01: Differential psychology
• 6105.02: Experimental design
• 6105.03: Measurement theory
• 6105.04: Statistics
• 6105.05: Psychometrics
• 6105.06: Scale analysis
• 6105.07: Test construction
• 6105.08: Tests theory
• 6105.09: Test validation
• 6105.99: Other (specify)

6106: Experimental psychology

• 6106.01: Brain function
• 6106.02: Comparative psychology
• 6106.03: Emotion
• 6106.04: Experimental analysis of behavior
• 6106.05: Levels of function
• 6106.06: Memory processes
• 6106.07: Mental processes
• 6106.08: Motivation
• 6106.09: Perception processes
• 6106.10: Physiological psychology
• 6106.11: Reaction, reflexes
• 6106.12: Sensory Processes
• 6106.99: Other (specify)

6107: General psychology

• 6107.01: Methodology
• 6107.02: Theory and systems
• 6107.99: Other (specify)

6108: Geriatric psychology

• 6108.01: Death
• 6108.02: Maturity
• 6108.03: Senescence
• 6108.99: Other (specify)

6109: Ocupational and personnel psychology

• 6109.01: Accident prevention
• 6109.02: Attitudes and morale
• 6109.03: Job design and evaluation
• 6109.04: Labour/management realtions
• 6109.05: Organizational behaviour
• 6109.06: Personnel selection
• 6109.07: Performance evaluation
• 6109.99: Other (specify)

6110: Parapsychology

• 6110.01: Extra-sensory perception
• 6110.02: Hypnosis
• 6110.99: Other (specify)

6111: Personality

• 6111.01: Creativity
• 6111.02: Culture and personality
• 6111.03: Personality development
• 6111.04: Measurement of personality
• 6111.05: Structure and dynamics of personality
• 6111.06: Theory of personality
• 6111.99: Other (specify)

6112: Psychological study of social issues

• 6112.01: Discrimination
• 6112.02: Minority group phenomena
• 6112.03: Public policy
• 6112.99: Other (specify)

6113: Psychopharmacology

• 6113.01: Alcoholism
• 6113.02: Behavioral response
• 6113.03: Drug abuse
• 6113.04: Drug function
• 6113.05: Drug therapy
• 6113.99: Other (specify)

6114: Social psychology

• 6114.01: Advertising
• 6114.02: Attitudes
• 6114.03: Collective behavior
• 6114.04: Community psychology
• 6114.05: Conflict resolution
• 6114.06: Consumer behavior
• 6114.07: Culture and personality
• 6114.08: Decision processes and theory
• 6114.09: Forensic psychology
• 6114.10: Group interaction
• 6114.11: Group processes
• 6114.12: Leadership
• 6114.13: Marketing
• 6114.14: Political behavior
• 6114.15: Public opinion
• 6114.16: Role behaviour
• 6114.17: Social perceptions and movements
• 6114.18: Symbolic communication
• 6114.99: Other (specify)

6199: Other psychological specialities (specify)

62: Science of Arts and Letters

6201: Architecture

• 6201.01: Architectural design
• 6201.02: Parks and gardens
• 6201.03: Urbanism
• 6201.99: Other (specify)

6202: Literary theory, analysis and criticism

• 6202.01: Criticism of texts
• 6202.02: Literary analysis
• 6202.03: Literary style and aesthetics
• 6202.04: Literary vocabulary
• 6202.05: Rhetoric
• 6202.99: Other (specify)

6203: Fine arts theory, analysis and criticism

• 6203.01: Cinematography
• 6203.02: Dance, choreography
• 6203.03: Decorative arts
• 6203.04: Drawing, engraving
• 6203.05: Fine art aesthetics
• 6203.06: Music, musicology
• 6203.07: Painting
• 6203.08: Photography
• 6203.09: Sculpture
• 6203.10: Theatre
• 6203.99: Other (specify)

6299: Other artistic specialities (specify)

63: Sociology

6301: Cultural sociology

• 6301.01: Cultural evolution
• 6301.02: Cultural relations
• 6301.03: Folklore
• 6301.04: Inter-ethnic relations
• 6301.05: Language and Culture
• 6301.06: National character and civilisation
• 6301.07: Sociology of art
• 6301.08: Sociology of law
• 6301.09: Sociology of literature
• 6301.10: Sociology of religion
• 6301.99: Other (specify)

6302: Experimental sociology

• 6302.01: Field data collection
• 6302.02: Social psychology
• 6302.03: Social survey design
• 6302.04: Social survey methods
• 6302.99: Other (specify)

6303: General sociology

• 6303.01: Comparative sociology
• 6303.02: Historical sociology
• 6303.03: Methodology
• 6303.04: Sociography
• 6303.05: Theory
• 6303.99: Other (specify)

6304: International disorganization

• 6304.01: Conflicts
• 6304.02: Conflicts resolution
• 6304.03: War and peace
• 6304.99: Other (specify)

6305: Mathematical sociology

• 6305.01: Measure and index construction
• 6305.02: Model building
• 6305.03: Statistical analysis
• 6305.99: Other (specify)

6306: Occupational sociology

• 6306.01: Bureaucracy
• 6306.02: Educational sociology
• 6306.03: Industrial sociology
• 6306.04: Medical sociology
• 6306.05: Sociology of education
• 6306.06: Sociology of law
• 6306.07: Sociology of mass-media
• 6306.08: Sociology of science
• 6306.99: Other (specify)

6307: Social change and development

• 6307.01: Evolution of societies
• 6307.02: Developing countries
• 6307.03: Social policy
• 6307.04: Social security
• 6307.05: Social services
• 6307.06: socio-economic development
• 6307.07: Technology and social change
• 6307.99: Other (specify)

6308: Social communications

• 6308.01: Signs
• 6308.02: Sociolinguistics
• 6308.03: Symbols
• 6308.99: Other (specify)

6309: Social groups

• 6309.01: Casts
• 6309.02: Elites
• 6309.03: Family, kinship
• 6309.04: Marriage
• 6309.05: Social classes
• 6309.06: Social mobility
• 6309.07: Social stratification
• 6309.08: Tribes
• 6309.09: Woman’s status
• 6309.99: Other (specify)

6310: Social problems – Social disorganization

• 6310.01: Crime
• 6310.02: Delinquency
• 6310.03: Disease
• 6310.04: Famine
• 6310.05: Handicapped
• 6310.06: Inter-racial relations
• 6310.07: Maladjusted
• 6310.08: Poverty
• 6310.09: Quality of life
• 6310.10: Social conflict and accommondation
• 6310.11: Social welfare
• 6310.12: Standard of living
• 6310.13: Terrorism
• 6310.14: Unemployment
• 6310.99: Other (specify)

6311: Sociology of human settlements

• 6311.01: Community studies
• 6311.02: Ecological sociology
• 6311.03: Local sociology
• 6311.04: Rural sociology
• 6311.05: Slums
• 6311.06: Urban sociology
• 6311.99: Other (specify)

6399: sociological specialities Other (specify)

71: Ethics

7101: Classical ethics

7102: Ethics of individuals

• 7102.01: Codes of values
• 7102.02: Codes of ethical conduct
• 7102.03: Motivation
• 7102.04: Philosophical ethics
• 7102.05: Religious ethics
• 7102.99: Other (specify)

7103: Group ethics

• 7103.01: International Declarations
• 7103.02: National ethics
• 7103.03: Economic ethics
• 7103.04: Ethics of science
• 7103.05: Transnational ethics
• 7103.99: Other (specify)

7104: Prospective ethics

7199: Other specialities related to ethics (specify)

72: Philosophy

7201: Philosophy of knowledge

• 7201.01: Aporetics
• 7201.02: Epistemology
• 7201.03: Theory of concept
• 7201.04: Theory of judgement
• 7201.05: Theory of perception
• 7201.06: Theory of reason
• 7201.99: Other (specify)

7202: Philosophical anthropology

• 7202.01: Esthetics
• 7202.02: Hermeneutics
• 7202.03: Mind-body problem
• 7202.04: Philosophy of action
• 7202.05: Philosophy of imagination
• 7202.06: Philosophy of intersubjectivity
• 7202.07: Philosophy of language
• 7202.08: Philosophy of will
• 7202.99: Other (specify)

7203: General philosophy

• 7203.01: Dialectical logic
• 7203.02: Dialectical materialism
• 7203.03: Metaphysics, ontology
• 7203.04: Natural theology
• 7203.99: Other (specify)

7204: Philosophical systems

• 7204.01: Ancient philosophy
• 7204.02: Modern philosophy
• 7204.03: Present-day philosophy
• 7204.04: Theologico-philosophical systems
• 7204.99: Other (specify)

7205: Philosophy of science

• 7205.01: Philosophy of biology
• 7205.02: Philosophy of logic
• 7205.03: Philosophy of mathematics
• 7205.04: Philosophy of physics
• 7205.05: Philosophy of social sciences
• 7205.99: Other (specify)

7206: Philosophy of nature

• 7206.01: Philosophy of life
• 7206.02: Philosophy of matter
• 7206.03: Philosophy of space and time
• 7206.99: Other (specify)

7207: Social philosophy

• 7207.01: Philosophy of culture
• 7207.02: Philosophy of history
• 7207.03: Philosophy of techniques
• 7207.04: Political philosophy
• 7207.05: Theory of ideologies
• 7207.99: Other (specify)

7208: philosophical doctrines

7299: Other specialities philosophical (specify)