فهرست مطالب gh.askari

Using fixed point methods, we prove the stability of orthogonally ring homomorphism and orthogonally ring derivation in Banach
algebras.

In this paper, we investigate the generalized Hyers-Ulam-Rassias and the Isac and Rassias-type stability of the conditional of orthogonally ring $*$-$n$-derivation and orthogonally ring $*$-$n$-homomorphism on $C^*$-algebras. As a consequence of this, we prove the hyperstability of orthogonally ring $*$-$n$-derivation and orthogonally ring $*$-$n$-homomorphism on $C^*$-algebras.

A combination of diet and sports training plays a major role in athletic performance. One diet-related strategy that has garnered attention is fat adaptation. This study reviewed the current evidence on fat adaptation and performance. PubMed was searched for information on the use of fat adaptation، fat adaptation and performance، high fat diet and performance، and fat adaptation and athletes for the years 1994 through 2012. It was found that، in most studies، fat adaptation with carbohydrate restoration increased fat oxidation independently of exogenous and endogenous carbohydrate availability and decreased carbohydrate oxidation. Some studies reported increased muscle triglyceride stores and the activity of hormone-sensitive lipase and enzymes for triglyceride hydrolysis. A reduction in muscle glycogenolysis without a change in plasma glucose oxidation was also observed. Some studies indicated that a decrease in glycogenolysis might negatively affect high intensity exercise، and a high carbohydrate oxidation rate appeared to be essential for optimal performance in such sports. Most studies indicated favorable metabolic changes following fat adaptation، but did not provide clear benefits for performance. More research is needed to identify the mechanisms related to fat adaptation and exercise intensity. Furthermore، the large inter-individual variability to fat-adaptation strategies must be determined.

Dye removal from industrial wastewater has been considered as one of the most environmental issues. Recently، new methods of treatment such as catalytic ozonation have been used to increase dye removal efficiency. So، the efficiency of catalytic ozonation by copper coated zeolite as a catalyst in the removal of Reactive Red 198 was investigated. In order to remove dye، the zeolite granules were modified by CuSO4. The heterogenous catalytic ozona-tion experiments were carried out to deter-mine the effect of pH، contact time، initial dye concentration، catalyst dose and radical scavengering in a semi-batch reactor. Sca-nning Electron Microscope (SEM)، X-ray Diffraction (XRD)، X-ray Fluorescence (XRF)، Adsorption/Desorption Porosimetry (BET) analyses were used to determine the structural properties، chemical compounds، specific surface area and morphological characteristic of zeolite and copper coated zeolite. Also catalytic ozonation process (COP) removal in both catalytic and sole ozonation was measured. The results showed that in cat-alytic ozonation، the removal efficiency of the dye increased in proportion to the increasing of pH، contact time، catalyst dose. Conversely، with the increasing of the initial concentrations of dye from 100 to 500 mg/L، removal efficiency decreased from 92% to 68% in catalytic ozonation. Furthermore، in the presence of radical scavenger، no considerable decrease was observed in catalytic ozonation. Also COD experiments showed 20% and 45% incr-eases in the sole ozonation and catalytic ozonation، respectively. Discussion & Due to the low cost، availability and high performance of zeolite as a catalyst support، and also with regard to the advantages of heterogenous systems compared with homogenous sys-tem، using of copper coated zeolite in cata-lytic ozonation processes for the removal of different pollutants is suggested.

Exercise can change the release of numerous cytokines and modulate their receptor systems. Dietary ω-3 lipids may decrease the levels of inflammatory cytokines and prostaglandins (PGs). Therefore, in this study, we investigated the effects of exercise and eicosapentaenoic acid (EPA) supplementation, with or without vitamin E, on the blood levels of IL-2, TNF-α, catalase, glutathione reductase, and MDA in male basketball players. Thirty-four well-trained male basketball players were enrolled into the study. Venous blood samples were obtained from all subjects between 5:00 and 6:00 p.m., after intensive endurance exercising for 2 hours, at the baseline and after intervention. Subjects received 2g EPA and/or 400 IU vitamin E or placebo depends on their groups for 6 weeks. There were significant fall (paired t-test) in TNF-α in group1(P< 0.05), and in MDA in group 3 (P<0.05), whereas there were significant increase in glutathione reductase in groups1 and 3 (P< 0.05), and in MDA in group2 (P< 0.05).There were significant differences (Tukey) in glutathione reductase between groups 2 and 3 (P< 0.05), and in IL-2 between groups 1 and other groups (P< 0.01), but there were no significant differences in MDA, CAT, and TNF-α, among groups after 6 week of intervention. Six weeks of EPA+vitamin E supplementation enhances the plasma levels of IL-2 and erythrocytes glutathione reductase, whereas it reduces TNF-α, and 6 weeks of EPA supplementation alone enhances only the serum level of MDA.