Articles

• A mathematical model on sequential discount transfer in a three-level channel

  P. E. Ezimadu, S. O. Ezimadu

  1-7

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• Neoplastic disorders of visual apparatus in clinical optometry: advances and management

  A. V. Dania

  8-17

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• Microbial abundance, diversity and physicochemistry of sediments of Iko River Estuary, Akwa Ibom State

  G. E. Udofia, I. G. Uba, A. O Inyang-Enin, C. O. Ubiebi, E.S. Ntino, C. A. Etok

  18-29

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• The heavy metals and benthic macroinvertebrates diversity and abundance of Oyun River sediments, Ilorin, Kwara State, Nigeria

  Olutomi Adeola Adeyemi-Ale, Tijani Opeyemi Tijani

  30-35

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• Synthesis, spectral characterization and antioxidant activity of a supramolecular copper (II) complex obtained from pyridine-2, 6- dicarboxylic acid and 3,5-diamino - 1, 2, 4-triazole.

  A. Johnson, J. Mbonu , S. Yousuf , S. Kazmi , S. Perveen, I. Choudhary

  36-43

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