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    Motivations of facebook, you tube and similar web sites users [Facebook, you tube ve benzeri web sitesi kullanicilarinin motivasyonlar?]
    (2010) Gülnar B.; Balci S.; Çakir V.
    The ever increasing popularity-particularly among young users-of personal photo/video sharing websites like youtube and face book deserves to be studied by many aspects. The aim of this study was to explore the motives of the users of this personal photo/video sharing websites. The data was obtained through a survey on a randomly selected sample of seven hundred and twenty eight (728) students of The Selcuk University. The results revealed 7 motives that have effects on the use of photo/video sharing websites like face book, you tube etc. These motivations are, in order of importance: narcissism and self expression, media drenching and performance, passing time, information seeking, personal status, relationship maintenance, and entertainment. The weekly usage frequency of facebook and similar websites by the subjects has been found as the main variable determining the varied importance levels attached to these 7 motivators. In relation to gender, male subjects attached more importance to narcissism and self expression motivators while females preferred information seeking and relationship maintenance. © Ahmet Yesevi University Board of Trustees.
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    Repeated supramaximal exercise-induced oxidative stress: Effect of ?-Alanine plus creatine supplementation
    (Kowsar Medical Publishing Company, 2016) Belviranli M.; Okudan N.; Revan S.; Balci S.; Gokbel H.
    Background: Carnosine is a dipeptide formed from the ?-alanine and histidine amino acids and found in mainly in the brain and muscle, especially fast twitch muscle. Carnosine and creatine has an antioxidant effect and carnosine accounts for about 10% of the muscle's ability to buffer the H+ ions produced by exercise. Objectives: The aim of the study was to investigate the effects of beta alanine and/or creatine supplementation on oxidant and antioxidant status during repeated Wingate tests (WTs). Patients and Methods: Forty four sedentary males participated in the study. Participants performed three 30s WTs with 2 minutes rest between exercise bouts. After the first exercise session, the subjects were assigned to one of four groups: Placebo, Creatine, Beta-alanine and Beta-alanine plus creatine. Participants ingested twice per day for 22 consecutive days, then four times per day for the following 6 days. After the supplementation period the second exercise session was applied. Blood samples were taken before and immediately after the each exercise session for the analysis of oxidative stress and antioxidant markers. Results: Malondialdehyde levels and superoxide dismutase activities were affected by neither supplementation nor exercise. During the pre-supplementation session, protein carbonyl reduced and oxidized glutathione (GSH and GSSG) levels increased immediately after the exercise. However, during the post-supplementation session GSH and GSSG levels increased in beta-alanine and beta-alanine plus creatine groups immediately after the exercise compared to pre-exercise. In addition, during the post-supplementation session total antioxidant capacity increased in beta-alanine group immediately after the exercise. Conclusions: Beta-alanine supplementation has limited antioxidant effect during the repeated WTs. © 2016, Sports Medicine Research Center.