Bases de datos bibliográficos Pascal y Francis

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Pascal Classification Scheme

001 Exact sciences and technology.
- 001A Sciences and techniques of general use.
- 001B Physics
- 001C Chemistry.
- 001D Applied sciences.
- 001E Earth, ocean, space.
  - 001E01 Earth sciences.
    - 001E01A Mineralogy.
    - 001E01B Geochemistry.
      - 001E01B01 Geochemistry: general, methodology, regional studies.
      - 001E01B02 Water geochemistry.
      - 001E01B03 Soil and rock geochemistry.
    - 001E01C Isotope geochemistry. Geochronology.
    - 001E01D Cosmochemistry. Extraterrestrial geology.
    - 001E01E Metallic and non-metallic deposits.
    - 001E01F Crystalline rocks.
    - 001E01G Sedimentary rocks.
    - 001E01H Marine geology.
    - 001E01I Stratigraphy.
    - 001E01J Areal geology. Maps.
    - 001E01K General geology.
    - 001E01L Tectonics. Structural geology. Plate tectonics.
    - 001E01M Internal geophysics.
    - 001E01N Hydrology. Hydrogeology.
    - 001E01O Engineering and environment geology. Geothermics.
    - 001E01P Surficial geology.
    - 001E01Q Paleontology.
  - 001E02 External geophysics.
  - 001E03 Astronomy.
    - 001E03A Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations.
    - 001E03B Solar System.
    - 001E03C Stars.
      - 001E03C10 Stellar characteristics and properties.
      - 001E03C20 Normal stars (by class): general or individual.
      - 001E03C21 Pre-main sequence objects, young stellar objects (YSO's) and protostars (T Tauri stars, Orion population, Herbig-Haro objects, Bok globules, bipolar outflows, cometary nebulae, etc.).
      - 001E03C30 Variable and peculiar stars (including novae).
        
        001E03C30D Low-amplitude blue variables (alpha Cygni, beta Cephei, delta Scuti, delta Delphini, delta Canis Majoris, SX Phoenicius, etc.).
        
        001E03C30E Emission-line stars (Of, Be, Luminous Blue Variables, Wolf-Rayet, etc.).
        
        001E03C30F Chemically peculiar stars (Ap, Am, etc.).
        
        001E03C30G Cepheids (delta Cephei, W Virginis).
        
        001E03C30H Carbon stars, S stars, and related types (C, S, R, and N).
        
        001E03C30J Long-period variables (Miras) and semiregulars.
        
        001E03C30K RR Lyrae stars. RV Tauri and PV Telescopii variables.
        
        001E03C30N Flare stars (UV Ceti, RS Canum Venaticorum, FU Orionis, R Coronae Borealis variables, etc.).
        
        001E03C30Q Novae, dwarf novae, recurrent novae, and other cataclysmic (eruptive) variables.
        
        001E03C30S Unusual and peculiar variables.
      - 001E03C60 Late stages of stellar evolution (including black holes).
      - 001E03C80 Binary and multiple stars.
      - 001E03C82 Extrasolar planetary systems.
      - 001E03C90 Other topics on stars.
    - 001E03D Stellar systems. Galactic and extragalactic objects and systems. The Universe.
    - 001E03E Extraterrestrial life and intelligence.
002 Biological and medical sciences.

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Pascal Classification Scheme

Francis Classification Scheme