CIÊNCIA E NATURA, V. 3, N. 3, 1981

View CIÊNCIA E NATURA, V. 3, N. 3, 1981
Published: 1981-12-12

  • Heat propagation in one homogeneous bar with boundary conditions that depends of a real parameter

    01-04
    DOI: https://doi.org/10.5902/2179460X24870

  • The initial integral

    05-12
    DOI: https://doi.org/10.5902/2179460X24872

  • The existence of polynomials of better approximation for continuous functions

    13-20
    DOI: https://doi.org/10.5902/2179460X24873

  • Variance of the classical contrats at the split-plot experiments in balanced incomplete block designs

    21-28
    DOI: https://doi.org/10.5902/2179460X24874

  • Contend influence of hexametilenetetramine in the thermal behaviour of phenolic resins

    29-34
    DOI: https://doi.org/10.5902/2179460X24875

  • Conductometric titration of Ag+ with thioacetamide

    35-40
    DOI: https://doi.org/10.5902/2179460X24916

  • 1-hydroxy-4-oxo-2,5-ciclohadien-1-ethyl acetate Jacaranda mimosaefolia D. Don, Bignoniaceae

    41-44
    DOI: https://doi.org/10.5902/2179460X24917

  • Anatomical study of wood and bark of Prockia crucis L. (Flacourtiaceae)

    45-58
    DOI: https://doi.org/10.5902/2179460X24918

  • Ictiologic survery of the Jacuí and Jacuizinho rivers in the area of the future Dona Francisca dam

    59-64
    DOI: https://doi.org/10.5902/2179460X24919

  • Systematic study of cichlidae in the central region of Rio Grande do Sul, Brazil. I genera: Aequidens, Chichlaurus and Geophagus

    65-74
    DOI: https://doi.org/10.5902/2179460X24920

  • Deforestation through os sloping in Ibirubá, RS

    75-100
    DOI: https://doi.org/10.5902/2179460X24921

  • The regional atmospheric circulation and weather family types identified at the central region of Rio Grande do Sul

    101-110
    DOI: https://doi.org/10.5902/2179460X24922