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Pascal Classification Scheme

001 Exact sciences and technology.
- 001A Sciences and techniques of general use.
- 001B Physics
  - 001B00 General.
  - 001B10 The physics of elementary particles and fields.
    - 001B10A General theory of fields and particles.
    - 001B10B Specific theories and interaction models; particle systematics.
    - 001B10C Specific reactions and phenomenology.
      - 001B10C10 Weak and electromagnetic interactions of leptons.
      - 001B10C15 Neutrino interactions.
      - 001B10C20 Leptonic and semileptonic decays of mesons.
        
        001B10C20C Decays of ? mesons.
        
        001B10C20E Decays of K mesons.
        
        001B10C20F Decays of charmed mesons.
        
        001B10C20G Decays of J/?, ?, and other quarkonia.
        
        001B10C20H Decays of bottom mesons.
        
        001B10C20J Decays of other mesons.
      - 001B10C25 Hadronic decays of mesons.
      - 001B10C30 Decays of baryons.
      - 001B10C35 Decays of leptons.
      - 001B10C38 Decays of intermediate bosons.
      - 001B10C40 Electromagnetic processes and properties.
      - 001B10C60 Photon and charged-lepton interactions with hadrons.
      - 001B10C65 Hadron production by electron-positron collisions.
      - 001B10C75 Hadron-induced low- and intermediate-energy reactions and scattering (energy ? 10 GeV).
      - 001B10C85 Hadron-induced high- and super-high-energy interactions (energy >> 10 GeV).
      - 001B10C87 Jets in large-Q² scattering.
      - 001B10C88 Polarization in interactions and scattering.
      - 001B10C90 Other topics in specific reactions and phenomenology of elementary particles.
    - 001B10D Properties of specific particles.
  - 001B20 Nuclear physics.
    - 001B20A Nuclear structure.
      - 001B20A10 Properties of nuclei, nuclear energy levels.
        
        001B20A10D Binding energies and masses.
        
        001B20A10F Charge distribution.
        
        001B20A10G Mass and neutron distributions.
        
        001B20A10H Spin, parity, and isobaric spin.
        
        001B20A10J Spectroscopic factors.
        
        001B20A10K Electromagnetic moments.
        
        001B20A10M Level density.
        
        001B20A10P Single-particle levels and strength functions.
        
        001B20A10R Collective levels.
        
        001B20A10S Coulomb energies.
        
        001B20A10T Lifetimes.
      - 001B20A30 Nuclear forces.
      - 001B20A45 Few-body systems.
      - 001B20A60 Nuclear-structure models and methods.
      - 001B20A65 Nuclear matter.
      - 001B20A80 Hypernuclei.
      - 001B20A90 Other topics in nuclear structure.
    - 001B20C Radioactive decay and in-beam spectroscopy.
      - 001B20C20 Electromagnetic transitions.
        
        001B20C20E Angular distribution and correlation measurements.
        
        001B20C20G Multipole mixing ratios.
        
        001B20C20J Multipole matrix elements.
        
        001B20C20L Gamma transitions and level energies.
        
        001B20C20N Internal conversion and extranuclear effects.
        
        001B20C20R Internal pair production.
      - 001B20C40 á decay; double á decay; electron and muon capture.
      - 001B20C50 Decay by proton emission.
      - 001B20C60 à decay.
      - 001B20C70 Heavy-particle decay.
      - 001B20C90 Other topics in radioactive decay and in-beam spectroscopy.
    - 001B20D Nuclear reactions: general.
    - 001B20E Nuclear reactions: specific reactions.
      - 001B20E10 Nuclear reactions involving few-nucleon systems.
      - 001B20E20 Photonuclear reactions.
      - 001B20E30 Lepton-induced reactions.
      - 001B20E40 Nucleon-induced reactions.
      - 001B20E43 Antiproton-induced reactions.
      - 001B20E45 ²H-induced reactions.
      - 001B20E55 ³H, ³He, and ⁴He-induced reactions.
      - 001B20E60 Reactions induced by unstable nuclei.
      - 001B20E70 Low and intermediate energy heavy-ion reactions.
        
        001B20E70B Elastic and quasielastic scattering.
        
        001B20E70D Coulomb excitation.
        
        001B20E70E Resonances.
        
        001B20E70G Compound nuclei.
        
        001B20E70H Transfer reactions.
        
        001B20E70J Fusion and fusion-fission reactions.
        
        001B20E70K Charge-exchange reactions.
        
        001B20E70L Strongly damped collisions.
        
        001B20E70M Projectile and target fragmentation.
        
        001B20E70P Multifragment emission and correlations.
      - 001B20E75 Relativistic heavy-ion reactions (collisions induced by light ions studied to calibrate relativistic heavy ion collisions, should be classified under both 001B20E75 and the 001B10C ou 001B20E category appropriate to the light ions).
      - 001B20E80 Meson- and hyperon-induced reactions.
      - 001B20E85 Fission reactions.
      - 001B20E90 Other topics in nuclear reactions: specific reactions.
    - 001B20F Nuclear astrophysics.
    - 001B20G Properties of specific nuclei listed by mass ranges.
    - 001B20H Nuclear engineering and nuclear power studies.
    - 001B20I Experimental methods and instrumentation for elementary-particle and nuclear physics.
      - 001B20I17 Electrostatic, collective, and linear accelerators.
      - 001B20I20 Cyclic accelerators and storage rings.
      - 001B20I25 Particle sources and targets.
        
        001B20I25B Electron sources.
        
        001B20I25D Neutron sources.
        
        001B20I25L Ion sources: polarized.
        
        001B20I25N Ion sources: positive and negative.
        
        001B20I25P Polarized and other targets.
        
        001B20I25R Sources of radioactive nuclei.
      - 001B20I27 Beams in particle accelerators.
        
        001B20I27A Beam injection and extraction.
        
        001B20I27B Beam dynamics; collective effects and instabilities.
        
        001B20I27E Beam handling; beam transport.
        
        001B20I27F Beam characteristics.
        
        001B20I27H Polarized beams.
      - 001B20I30 Spectrometers and spectroscopic techniques.
      - 001B20I40 Radiation detectors, dosimeters.
      - 001B20I50 Computer interfaces.
      - 001B20I85 Computer data analysis.
      - 001B20I90 Other topics in elementary-particle and nuclear physics experimental methods and instrumentation.
  - 001B30 Atomic and molecular physics.
  - 001B40 Fundamental areas of phenomenology (including applications).
  - 001B50 Physics of gases, plasmas and electric discharges.
  - 001B60 Condensed matter: structure, mechanical and thermal properties.
  - 001B70 Condensed matter: electronic structure, electrical, magnetic, and optical properties.
    - 001B70A Electron states.
      - 001B70A10 Theories and models of many electron systems.
      - 001B70A15 Methods of electronic structure calculations.
      - 001B70A18 Fermi surface: calculations and measurements; effective mass, g factor.
      - 001B70A20 Electron density of states and band structure of crystalline solids.
        
        001B70A20B Transition metals and alloys.
        
        001B70A20D Alkali and alkaline earth metals.
        
        001B70A20E Rare earth metals and alloys.
        
        001B70A20G Other metals and alloys.
        
        001B70A20L Intermetallic compounds.
        
        001B70A20M Elemental semiconductors.
        
        001B70A20N Semiconductor compounds.
        
        001B70A20P Other inorganic compounds.
        
        001B70A20R Polymers and organic compounds.
        
        001B70A20T Fullerenes and related materials; intercalation compounds.
      - 001B70A22 Electronic structure of liquid metals and semiconductors and their alloys.
      - 001B70A23 Electronic structure of disordered solids.
      - 001B70A27 Strongly correlated systems; heavy fermions.
      - 001B70A28 Narrow-band systems; intermediate-valence solids.
      - 001B70A30 Metal-insulator transitions and other electronic transitions.
      - 001B70A35 Excitons and related phenomena.
      - 001B70A36 Polaritons (including photon-phonon and photon-magnon interactions).
      - 001B70A38 Polarons and electron-phonon interactions.
      - 001B70A45 Collective effects.
      - 001B70A55 Impurity and defect levels.
      - 001B70A60 Positron states.
      - 001B70A70 Level splitting and interactions.
      - 001B70A90 Other topics in electron states.
    - 001B70B Electronic transport in condensed matter.
    - 001B70C Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures.
      - 001B70C20 Surface and interface electron states.
        
        001B70C20A Surface states, band structure, electron density of states.
        
        001B70C20F Localization effects (Anderson or weak localization).
        
        001B70C20H Impurity and defect levels; energy states of adsorbed species.
        
        001B70C20J Delocalization processes.
        
        001B70C20M Collective excitations (including excitons, polarons, plasmons and other charge-density excitations).
        
        001B70C20Q Electron solids.
      - 001B70C21 Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems.
      - 001B70C22 Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals.
      - 001B70C23 Electronic transport in mesoscopic systems.
      - 001B70C25 Surface conductivity and carrier phenomena.
      - 001B70C30 Surface double layers, Schottky barriers, and work functions.
      - 001B70C40 Electronic transport in interface structures.
      - 001B70C50 Electronic transport phenomena in thin films and low-dimensional structures.
      - 001B70C61 Electrical properties of specific thin films.
      - 001B70C63 Electronic transport in multilayers, nanoscale materials and structures.
      - 001B70C90 Other topics in electronic structure and electrical properties of surfaces, interfaces, and thin films.
    - 001B70D Superconductivity.
    - 001B70E Magnetic properties and materials.
    - 001B70F Magnetic resonances and relaxations in condensed matter, Mössbauer effect.
    - 001B70G Dielectrics, piezoelectrics, and ferroelectrics and their properties.
    - 001B70H Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation.
    - 001B70I Electron and ion emission by liquids and solids; impact phenomena.
  - 001B80 Cross-disciplinary physics: materials science; rheology.
- 001C Chemistry.
- 001D Applied sciences.
  - 001D00 General aspects.
  - 001D01 Operational research. management science.
  - 001D02 Computer science; control theory; systems.
  - 001D03 Electronics.
  - 001D04 Telecommunications and information theory.
  - 001D05 Electrical engineering. electrical power engineering.
    - 001D05A General.
    - 001D05B Testing. Reliability. Quality control.
    - 001D05C Materials.
    - 001D05D Electrical machines.
    - 001D05E Transformers and inductors.
    - 001D05F Connection and protection apparatus.
    - 001D05G Various equipment and components.
    - 001D05H Power electronics, power supplies.
    - 001D05I Electrical power engineering.
      - 001D05I01 Power networks and lines.
        
        001D05I01A Theory. Simulation.
        
        001D05I01B Disturbances. Regulation. Protection.
        
        001D05I01C Overhead networks.
        
        001D05I01D Underground and submarine networks.
        
        001D05I01E Direct current networks.
        
        001D05I01F Substations.
        
        001D05I01G Users connections and in door installation.
        
        001D05I01H Operation. Load control. Reliability.
        
        001D05I01I Miscellaneous.
      - 001D05I02 Electric power plants.
      - 001D05I03 Direct energy conversion and energy accumulation.
  - 001D06 Energy.
  - 001D07 Chemical engineering.
  - 001D08 Chemical industry and chemicals.
  - 001D09 Physicochemistry of polymers.
  - 001D10 Polymer industry, paints, wood.
  - 001D11 Metals. metallurgy.
  - 001D12 Mechanical engineering. machine design.
  - 001D13 Material handling, hoisting. storage. packaging.
  - 001D14 Buildings. public works.
  - 001D15 Ground, air and sea transportation, marine construction.
  - 001D16 Pollution.
  - 001D17 Other techniques and industries.
- 001E Earth, ocean, space.
002 Biological and medical sciences.
- 002A Fundamental and applied biological sciences. psychology.
  - 002A01 General aspects.
  - 002A02 Analytical, structural and metabolic biochemistry.
  - 002A03 Molecular biophysics.
  - 002A04 Molecular and cellular biology.
  - 002A05 Microbiology.
  - 002A06 Fundamental immunology.
  - 002A07 Genetics of eukaryotes. biological and molecular evolution.
  - 002A08 Tissues, organs and organisms biophysics.
  - 002A09 Plant cytology, morphology, systematics, chorology and evolution.
  - 002A10 Plant physiology and development.
  - 002A11 Protozoa.
  - 002A12 Invertebrates.
  - 002A13 Animal ethology.
  - 002A14 Animal, plant and microbial ecology.
    - 002A14A General aspects. Techniques.
    - 002A14B Animal and plant ecology.
      - 002A14B01 General aspects.
      - 002A14B02 Autoecology.
      - 002A14B03 Demecology.
        
        002A14B03A General aspects.
        
        002A14B03B Plants and fungi.
        
        002A14B03C Animals.
      - 002A14B04 Synecology.
    - 002A14C Microbial ecology.
    - 002A14D Applied ecology.
  - 002A15 Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution.
  - 002A16 Vertebrates: anatomy and physiology, studies on body, several organs or systems.
  - 002A17 Vertebrates: digestive system.
  - 002A18 Vertebrates: urinary system.
  - 002A19 Vertebrates: skin, associated glands, phaneres, light organs, various exocrine glands (salt gland, uropygial gland...), adipose tissue, connective tissue.
  - 002A20 Vertebrates: respiratory system.
  - 002A21 Vertebrates: blood, hematopoietic organs, reticuloendothelial system.
  - 002A22 Vertebrates: cardiovascular system.
  - 002A23 Vertebrates: osteoarticular system, musculoskeletal system.
  - 002A24 Vertebrates: body movement. posture. locomotion. flight. swimming. physical exercise. rest. sports.
  - 002A25 Vertebrates: nervous system and sense organs.
  - 002A26 Psychology. psychophysiology.
  - 002A27 Psychoanalysis.
  - 002A28 Vertebrates: endocrinology.
  - 002A29 Vertebrates: reproduction.
  - 002A30 Embryology: invertebrates and vertebrates. teratology.
  - 002A31 Biotechnology.
  - 002A32 Agronomy. Soil science and plant productions.
    - 002A32A Generalities. Biometrics, experimentation. Remote sensing.
    - 002A32B Soil science.
    - 002A32C General agronomy. Plant production.
      - 002A32C01 Generalities. Agricultural and farming systems. Agricultural development.
      - 002A32C02 Soil-plant relationships. Soil fertility. Fertilization. Amendments.
      - 002A32C03 Agricultural and forest climatology and meteorology. Irrigation. Drainage.
        
        002A32C03A Agricultural and forest meteorology.
        
        002A32C03A1 Generalities. Techniques. Climatology. Meteorology. Climatic models of plant production.
        
        002A32C03A1A Generalities, techniques.
        
        002A32C03A1B Climatology, meteorology.
        
        002A32C03A1C Climatic models of plant production.
        
        002A32C03A2 Crop climate. Energy and radiation balances.
        
        002A32C03A3 Water balance and requirements. Evapotranspiration.
        
        002A32C03A4 Climatic adaptation. Acclimatization.
        
        002A32C03B Irrigation. Drainage.
      - 002A32C04 Cropping systems. Cultivation. Soil tillage.
      - 002A32C05 Vegetative propagation. Sowing and planting. Harvesting.
      - 002A32C06 Soilless cultures. Protected cultivation.
      - 002A32C07 Edible fungi production.
      - 002A32C08 Use of agricultural and forest wastes. Biomass use, bioconversion.
      - 002A32C09 Plant aquaculture, algal production (macroalgae).
    - 002A32D Genetics and breeding of economic plants.
    - 002A32E Economic plant physiology.
  - 002A33 Forestry.
  - 002A34 Phytopathology. animal pests. plant and forest protection.
  - 002A35 Food industries.
  - 002A36 Animal productions.
    - 002A36A General aspects.
    - 002A36B Animal aquaculture.
      - 002A36B01 General aspects.
      - 002A36B02 Invertebrate aquaculture.
      - 002A36B03 Vertebrate aquaculture.
        
        002A36B03A Pisciculture.
        
        002A36B03B Others.
    - 002A36C Terrestrial animal productions.
  - 002A37 Medically important nuisances and vectors, pests of stored products and materials: population survey and control.
- 002B Medical sciences.

Francis Classification Scheme

518- Ecoinfo
519- Philosophy
520- Educational sciences
521- Sociology
522- History of science and technology
- 522-1 General points
- 522-57 Mathematical sciences and techniques
- 522-75 Physical sciences and techniques
- 522-171 Technology
- 522-255 Earth sciences
- 522-336 Life sciences
  - 522-337 Natural sciences
  - 522-340 Breeding; Food
  - 522-359 Biology
    - 522-360 General points
    - 522-361 Palaeontology; evolution; genetics
    - 522-366 Botany
    - 522-379 Zoology
    - 522-394 Anatomy; physiology
    - 522-404 Biochemistry; biophysics; cytology
    - 522-409 Sexology
    - 522-412 Obstetrics; Gynecology
    - 522-415 Microbiology; parasitology
    - 522-420 Medicine; surgery; pharmacy
      - 522-421 History of medicine
        
        522-422 General points
        
        522-423 Antiquity
        
        522-424 East and Far East
        
        522-425 Arabs
        
        522-425A Pre-Columbian America.
        
        522-426 Middle Ages.
        
        522-427 Renaissance
        
        522-428 17th century
        
        522-429 18th century
        
        522-430 19th century
        
        522-431 20th century
        
        522-431A 21th century.
      - 522-432 Hygiene; hospitals
      - 522-448 Physicians
      - 522-459 Pathology
      - 522-493 Surgery
      - 522-509 Therapeutics
      - 522-523 Dentistry
      - 522-524 Veterinary medicine
523- History and sciences of litterature
524- Linguistics
525- Prehistory and protohistory
526- Art and archaeology
527- History and sciences of religions
528- Administrative science
529- Ethnology
531- Geography
533- Latin america
540- Repertory of art and archaeology.
600-
603- Computer processing and legal sciences
610-
616- Company management
617- General economics
731- Energy economics
760- Public health. Hygiene.
770- Psychology. Psychoanalysis. Psychiatry.
790- Information and communication sciences