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Athens Institute for Education & Research (A World Association of Academics and Researchers)

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Athens Journal of Sciences
Volume 8, Issue 1, March 2021
DOI: 10.30958/ajs_v8i1

Table of Contents
Download the entire issue (PDF)
Front Pagesi-viii
Behaviour of Temperature Variations in Subsurface Layers in the South-Eastern Mediterranean Sea
Tarek M. El-Geziry, Ibrahim A. Maiyza & Mohamed S. Kamel
9
Pragmatic Association of the Two Evaluation Concepts of Operational Observation and Mathematical Modeling
Adel Razek
23
A Modified System of Nonlinear Fractional-Order Differential Equations in the Study of the Dynamics of Marital Relationships and their Behavioural Features
Olutunde Samuel Odetunde, Rasaki Kola Odunaike & Adetoro Temitope Talabi
37
Theory of Bioenergy Accumulation and Transformation: Application to Evolution, Energy, Sustainable Development, Climate Change, Manufacturing, Agriculture, Military Activity and Pandemic Challenges
Armen B Avagyan
57

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