The effective potential and resummation procedure to multidimensional complex cubic potentials for weak and strong-coupling

The method for the recursive calculation of the effective potential is applied successfully in case of weak coupling limit (g tend to zero) to a multidimensional complex cubic potential. In strong-coupling limit (g tend to infinity), the result is resumed using the variational perturbation theory (VPT). It is found that the convergence of VPT-results approaches those expected.Comment: 19 pages, 0 figur

Évaluation de l’activité biologique des feuilles de l’olivier sauvage et cultivé

L’olivier est très répondu en Algérie et largement utilisé par les populations locales. Les propriétés médicinales de l’olivier sont surtout attribuées aux feuilles. Dans le cadre de la valorisation des ressources naturelles, nous avons essayé dans cette étude de contribuer à la connaissance de certains effets biologiques des feuilles de l’olivier sauvage (Olea europea subsp europae var. sylvestris) et de l’olivier cultivé (Olea europea subsp europea var. sativa) récoltés dans la wilaya de Tizi-Ouzou. L’utilisation de ces dernières en phytothérapie par la population locale se fait à l’état naturel (infusion ou décoction). Les feuilles sont utilisées pour leur effet hypoglycémiant et hypotenseur à des doses journalières de 40 à 50g. L’extraction des polyphénols totaux a été faite par macération au méthanol. Le rendement était de 38,74% pour l’olivier sauvage et 35, 72% pour le cultivé. L’évaluation de l’activité antioxydante des polyphénols totaux par la méthode de DPPH révèle une valeur de CI50 de 0.24mg/mL. Ceci classe les polyphénols de l’olivier comme antioxydant puissant. L’administration d’un volume de 2mL de tisane, préparée à partir de 50 g de feuille, à des rats rendus diabétiques par une dose de 150mg/kg d’alloxane a provoqué une diminution très hautement significative (P ˂ 0.0005) de la glycémie et des variations non significative (p ˃ 0.05) de cholestérolémie et de triglycérides.Mots-clés : Olea europea, polyphénols, alloxane, antioxydant, antihyperglycémiant.Evaluation of the biological activity of the leaves of wild and cultivated oliveThe olive tree is omnipresent in Algeria and widely used by local people. The medicinal properties of the olive tree are mostly attributed to the leaves. As part of the development of natural resources, we tried in this study contribute to the knowledge of some biological effects of leaves of wild olive (Olea europaea subsp europae var . Sylvestris) and cultivated (Olea europea subsp europea var. sativa) collected in the wilaya of Tizi Ouzou. The use of herbal medicine in the past by the local population is in its natural state (infusion or decoction). The leaves are used for their hypoglycemic and hypotensive effect at daily doses of 40 to 50g. The extraction of total polyphenols was made by maceration with methanol. The yield was 38.74% for the wild olive and 35, 72% for cultivated. The evaluation of the antioxidant activity of total polyphenols by the DPPH method reveals an IC50 value of 0.24mg/mL. This class of olive polyphenols as a potent antioxidant. The administration of a volume of 2 ml of tea, prepared from 50 g of leaf in diabetic rats with a dose of 150mg/kg of alloxan has caused a very highly significant (P ˂ 0.0005) of the glucose and insignificant changes (p ˃ 0.05) cholesterol and triglycerides.Keywords : Olea europea, polyphenols, alloxan, antioxidant, antihyperglycemic

LifeTime-aware Backpressure - a new delay-enhanced Backpressure-based routing protocol

Dynamic Backpressure is a highly desirable family of routing protocols known for their attractive mathematical proprieties. However, these protocols suffer from a high end-to-end delay making them inefficient for real-time traffic with strict endto-end delay requirements. In this paper, we address this issue by proposing a new adjustable and fully distributed Backpressurebased scheme with low queue management complexity, named LifeTime-Aware BackPressure (LTA-BP). The novelty in the proposed scheme consists in introducing the urgency level as a new metric for service differentiation among the competing traffic flows in the network. Our scheme not just significantly improves the quality of service provided for real-time traffic with stringent end-to-end delay constraints, but interestingly protects also the flows with softer delay requirements from being totally starved. The proposed scheme has been evaluated and compared against other state of the art routing protocol, using computer simulation, and the obtained results show its superiority in terms of the achieved end-to-end delay and throughput

A generalized quantum nonlinear oscillator

We examine various generalizations, e.g. exactly solvable, quasi-exactly solvable and non-Hermitian variants, of a quantum nonlinear oscillator. For all these cases, the same mass function has been used and it has also been shown that the new exactly solvable potentials possess shape invariance symmetry. The solutions are obtained in terms of classical orthogonal polynomials

A Comprehensive Context-Free Grammar for the Arabic Language: Including Non- Fundamentalist Phrases

Dixon's assertion regarding the idiosyncratic nature of natural languages initiates an investigation into the unique characteristics of the Arabic language. Contrary to Dixon's viewpoint, some scholars suggest the presence of regularity within Arabic, attributable to its extensive array of syntactic rules and formulations. Yet, the copious volume of terminal vocabulary in Arabic poses significant challenges to grammar development. While annotations have offered partial solutions, they bring forth additional difficulties due to the necessity of retrieving data from the annotated corpora. To mitigate these issues, an innovative study was executed that utilized an annotated taxonomy of syntactic roles, coupled with an examination of both fundamentalist and non-fundamentalist phrases. A codification method was applied to a knowledge base employing the Subsumption Hierarchical Attribute (SHA), enabling the integration of Arabic word classes based on their potential syntactic roles. The SHA acts as an annotation method for deriving a grammar class 02, where classes are coded as terminal vocabulary. Its primary objectives are twofold: to moderate the complexity of the parsing system and to automate the generation of over 1490 distinct possible sentence structures. The study culminated in the development of a novel context-free grammar (CFG) for Arabic, broadening the horizons of language processing techniques

A Group-Theoretical Method for Natanzon Potentials in Position-Dependent Mass Background

A new manner for deriving the exact potentials is presented. By making use of conformal mappings, the general expression of the effective potentials deduced under su(1,1) algebra can be brought back to the general Natanzon hypergeometric potentials