AND SUMMARY Low incidence and levels of aflatoxin were identified in corn of all grades grown in the Midwest in 1964, 1965, and 1967. Later surveys indicate that corn grown in southern regions is subject to invasion by Aspergillus flavus and subsequent aflatoxin formation. This mycotoxin is formed either in the field or in storage. In the field, such factors as insect damage and weather conditi...

and Applied Analysis 3 the synaptic connection weight of the unit j on the unit i at time t; constant bij denotes the synaptic connection weight of the unit j on the unit i at time t − τ t ; Ii is the input of the unit i; τ t is the transmission delay such that 0 < τ t ≤ τ and τ̇ t ≤ ρ < 1, t ≥ t0; τ , ρ are constants. The initial conditions associated with system 2.1 are of the form x s φ s , s...

Acknowledgements Of all people who have contributed to the accomplishment of the work reported in this thesis, my wife Anikó Kende definitely deserves to be first in line: thank you for all your support and for loving me-I do not know what I would do without you. I would also like to take this opportunity to thank for the rest of my family for believing in me and supporting me at all times. I w...

and Applied Analysis 3 The following are examples of G-metric spaces. Example 1.8 see 7 . Let R, d be the usual metric space. Define Gs by Gs ( x, y, z ) d ( x, y ) d ( y, z ) d x, z , 1.4 for all x, y, z ∈ R. Then it is clear that R, Gs is a G-metric space. Example 1.9 see 7 . Let X {a, b}. Define G on X ×X ×X by G a, a, a G b, b, b 0, G a, a, b 1, G a, b, b 2 1.5 and extend G to X ×X ×X by us...