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Showing 3 results for Rasaee


Volume 3, Issue 11 (Autumn 2022)
Abstract

Although creating special value in professional sports teams is popular, the process of shaping the brand equity of the sports team in the sports marketing literature is still relatively unknown and not fully understood. This study provides a dual identification model to examine how to build the brand value of a sports team. This study aims to investigate the role of team identity antecedents and team brand identity in constructing the brand equity of Traktor football team fans. The research method is descriptive-correlation and is applied based on the purpose. The statistical population is all the fans of the tractor manufacturing team. The sampling method is unlikely and available. The sample size was estimated based on sample power software. Two hundred and sixty-four people participated in this study. The face validity and content of the questionnaires were confirmed by a survey of 5 sports management professors, structural validity was confirmed using convergent and divergent validity, and reliability was confirmed by using α and CR. The results showed that market characteristics (including social experience, outstanding group experience, history, and fan etiquette) and symbolic stimuli (including similarity, distinction, and brand credibility) significantly correlated with team and brand identity. In addition, identification with the team identity and brand identity of the sports team are significant predictors of the brand equity of the sports team. These findings emphasize the dual identification study's importance in forming the brand equity of the sports team for sports team managers.
 
Karim Khoshgard, Bijan Hashemi, Azim Arbabi, Mohammad Javad Rasaee, Masoud Soleimani,
Volume 15, Issue 3 (10-2012)
Abstract

Objective: Due to recent advances in nanotechnology it is now possible to accumulate high atomic-number nanomaterial such as gold nanoparticles (GNPs) in cancerous cells and take advantage of their absorbed dose enhancement property as radiosensitizing agents. This study aimed to investigate the absorbed dose enhancement factor due to the presence of PEGylated GNPs under the irradiation of an MCF-7 cancerous cell line using orthovoltage X-ray beams. Methods: We synthesized GNPs with an average diameter of 47 nm and joined them to polyethylene glycol. A total of 50 μg/mL of the pegylated GNPs were incubated with MCF-7 cells for 1, 2, 6, 12, and 24 hours, after which we compared their cytotoxicities. Then, PEGylated GNPs (50μg/mL) were incubated with MCF-7 cells for 12 and 24 hours and their radiosensitizing effect during 2Gy delivery of 120, 180 and 200 kVp X-ray beams were compared by the MTT assay. Results: Cytotoxicity studies showed no significant effect of GNPs on cell viability. Significant differences in cell survival were observed between the groups irradiated with and without GNPs, which lead to an average absorbed dose enhancement factor of 1.22±0.06. According to the results, there was no radiosensitization difference due to the usage of 120, 180 and 200 kVp X-ray beams. However increased incubation time increased the dose enhancement factor. Conclusion: By using PEGylated GNPs we can decrease the prescribed X-ray dose, yet maintain the same level of cancerous cell killing.
Parvin Farzanegi, Sadegh Saberi, Ali Fakharian, Mohammad Javad Rasaee, Valiollah Dabidi Roshan,
Volume 15, Issue 3 (10-2012)
Abstract

Objective: Environmental pollution is of major concern today and lead is considered to be one of the most important environmental pollutants. Long-term contact with lead causes harmful effects to humans. This study seeks to determine the effects of Curcuma longa (turmeric extract) consumption and exercise training on glutathione peroxidase and protein carbonyl in kidney and spleen tissues from rats exposed to lead. Methods: We randomly classified 60 male rats into the following six groups of 10 rats per group: 1) control; 2) sham (turmeric extract solvent); 3) lead; 4) training + lead; 5) turmeric extract + lead; and 6) training + lead + turmeric extract. The training program for groups 3 and 6 consisted of running on a level treadmill for 40 sessions (eight weeks at five sessions per week) at a speed of 22 to 15 m/min for 26 to 64 minutes. Turmeric extract (30 mg/kg) was injected three times per week for eight weeks. Amounts of glutathione peroxidase and protein carbonyl were measured by ELISA. Results: The amount of protein carbonyl in the kidney and spleen tissues of the lead group increased compared to the sham, training, combined and extract groups. Rats in the combined, extract and practice groups (F=4.787; P=0.002) had lower levels of protein carbonyl in their kidney and spleen tissues compared to the sham group (F=6.970, P=0.000). Glutathione peroxidase levels in the kidney and spleen tissues were less in the lead group compared to the sham group. However these levels in the training, extract, and combined groups increased compared with the sham group (respectively, in kidney and spleen P=0.051, F=2.466 and P=0/086, F=2.11). Conclusion: Intake of turmeric extract and exercise alone did not cause complete inhibition of the oxidative effects in kidney and spleen tissues. However, exercise and consumption of turmeric extract can be effective in reducing the harmful effects of lead.

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