and Applied Analysis 3 see 35 . When designing an associative memory neural network, we should make convergence speed as high as possible to ensure the quick convergence of the network operation. Therefore, pth moment p ≥ 2 exponential stability and almost sure exponential stability are most useful concepts as they imply that the solutions will tend to the trivial solution exponentially fast. T...

Background: Chemical warfare agents (CWA) were most notably used during the First World War in Europe, against Iranians and Kurdish citizens of Iraq at the hands of Saddam Hossein’s regime in 1980s and more recently in Syria. The use of CWA is banned under the international law. Methods: Ancient uses of CWA are not well studied. Recently, their use during the Persian siege of the Roman-held Dur...

background providing the mental health of medical students has an important role in mental health of society. the aim of this research was investigating the relationship between the mental health and hardiness in medical students and comparing these variables in first and last semester medical students. material and methods the present research was correlation and matching method on first and l...

Rogers (1962) has stressed that the major factors influencing the nematode's ability to obtain oxygen by diffusion are the environmental oxygen tension and its body size especially its body radius. Both he and von Brand (1966, 1968) suggest that the smaller intestinal parasites, such as Nippostrongylus brasiUensis (= muris), maintain an aerobic metabolism, but that larger nematodes like Ascaris...

We give an alternate proof of one of the inequalities proved recently for martingales (=sums of martingale differences) in a non-commutative L p-space, with 1 < p < ∞, by Q. Xu and the author. This new approach is restricted to p an even integer, but it yields a constant which is O(p) when p → ∞ and it applies to a much more general kind of sums which we call p-orthogonal. We use mainly combina...