Eric. D. Perl, Plotinus. Ennead V, 1: On the Three Primary Levels of Reality. The Enneads of Plotinus with philosophical commentaries. Las Vegas, Zurich, Athènes, Parmenides publishing, 2015, 1 vol. 12,5x19, 228 pp., ISBN 978-1-930972-91-9 ; -92-6.

91 20 11 v 1 1 6 D ec 1 99 9 Liouville equation under perturbation

Small perturbation of the Liouville equation under smooth initial data is considered. Asymptotic solution which is available for a long time interval is constructed by the two scale method. The Cauchy problem for the Liouville equation with a small perturbation ∂ 2 t u − ∂ 2 x u + 8 exp u = εF[u], 0 < ε ≪ 1, (0.1) u| t=0 = ψ 0 (x), ∂ t u| t=0 = ψ 1 (x), x ∈ R (0.2) is considered. The problem is...

the effect of task cognitive complexity and time limit on the performance of the learners with different proficiency levels in second language writing skill

this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...

Book Review: “Bagchi D., Swaroop A. (2017). Food Toxicology. CRC Press, Boca Raton. ISBN: 978-1-4987-0874-6”

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Cover vol. 9, no.1, February 2012