This work is devoted to the phytochemical and biological study of two Algerian species: Hedysarum pallidum Desf. and Linaria pelisseriana that have not been previously subjected to any phytochemical study. The extraction ...
The objective of the work presented in this thesis is to develop new approaches to access a variety of nitrogen- and oxygen-containing polyheterocyclic compounds, as well as to evaluate their biological activity and conduct ...
(E)-l-[-2-(2-fluorophenyl)diazan-l-ylidene] naphthalen-2(1H)-one (FPDN) and (E)-l-[2-(3-chlorophenyl) diazen-l-ylidene] naphthalen-2(1H)-one (3-ClPDN) are organic molecules belonging to the azo dye family. This thesis aims ...
The purpose of this thesis is to investigate the nonparametric estimation of the classical and relative regression of the real valued random variable Y , conditional on a real valued covariate X, under independent and ...
The present work consists in the elaboration and the characterization of TiO2 thin
films by sol-gel method. Particular attention is paid to the influence of temperatures,
the annealing atmosphere, the thickness, the ...
Our study is interested in the investigation of the chemical composition and the biological activities of Algerian propolis. In the first part of our study we examined several propolis harvested from Algerian East in order ...
The main purpose of this thesis is based on the synthesis and characterization of new coordination compounds based on alkaline-earth metals. Two synthesis methods were used to prepare these materials: synthesis by way of ...
Gronwall-Bellman inequalities and their various generalizations that give explicit bounds on unknown functions provide a very useful and important device in the study of many qualitative properties of solutions of differential ...
The catalytic activation of hydrogen peroxide (H2O2), persulfate (PS) and peroxymonosulfate (PMS) by organometallic FeIII and CuII complexes has been applied in the removal of several types of pharmaceutical pollutants in ...
This thesis work presents the synthesis, the characterization by infrared and UV-visible spectroscopic methods, and the structural study by X-ray diffraction of seven new complexes based on copper and the following nitrogenous ...
The objective of our work is to carry out phytochemical and biological studies on the Algerian plants Inula conyza DC, Centaurea incana Desf belonging to the Asteraceae family, and Lathyrus latifolius L of the Fabaceae ...
In this graduation thesis, we have considered different classes of fractional order discrete time systems. The proposed systems are defined using Caputo h-difference operator, in addition, we have studied the existence of ...
In several areas of statistical application, the estimation of the bivariate distribution function plays an essential role, We propose such estimator based on Bernstein’s approach in the presence of right censored ...
In the present work, the aerial parts (1200 g) of the Saharan plant Hammada articulata underwent maceration in 80% ethanol. After filtration, the solution obtained was concentrted (37°C) then added with distilled water ...
The work of this thesis is part of recent research concerning the development and characterization of nanometric oxides by different techniques. In view of the comparison with the many works already carried out of this ...
In this work, we are interested in the nonparametric method of the regression
function on the wavelets class. Our contribution lies in the fact that we have
extended this method in case the response variable is subject ...
This work describes a thesis that is divided into two chapters. In the first chapter, a synthesis of novel benzimidazolium salts is presented as N-heterocyclic carbene precursors (NHCs), along with the synthesis of their ...
This thesis focuses on the synthesis of new porous coordination polymers based on pyromellitic acid. The crystal structures of the hybrid materials have been solved from single-crystal X-ray diffraction data and the ...
Aromatic compounds containing azo or azoxy functions are widely used in the chemical industry as color pigments, food additives, indicators, initiators of free-radical reactions and therapeutic agents. The treatment of ...
This work concerns the application of the approach of supersymmetry in quantum mechanics (SUSYQM) to solve the one-dimensional Schrödinger, Klein-Gordon and Dirac equations for a particle of position-dependent mass subject ...