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Öğe Evaluation of instructors and students' reaction to undesired classroom behaviours from a professional perspective(2011) Pepe K.; Bozkurt I.Nowadays, it is seen that student behaviours that disturb the learning environment have come up as crucial problems in education and training applications and they set learning backward. This research aims to define the opinions of instructors and students on preventing the undesired classroom behaviours that disturb education and to evaluate these opinions from a professional approach. The data of the research are gathered through literature review and questionnaire method. The population of the research is Mehmet Akif Ersoy University Faculty of Education; the sample group of the research is composed of 1st, 2nd, 3rd and 4th grade students of Classroom Teaching Department, Department of Early Childhood Education and Physical Education and Sports Department and the instructors of these departments. A questionnaire was developed in accordance with the research taking by applying to expert opinion. The comprehensibility, content validity and reliability of the questionnaire were tested. The Cronbach's alpha reliability co-efficient of the questionnaire was defined as 0.63. The students from the sampling group were met face to face and the questionnaire was applied to the students using stratification and random sampling method. It was also applied to the instructors by meeting face to face. The questionnaires of 407 people, 72 of whom are the instructors, 333 of whom are the students and 2 of whom didn't mention their status, were evaluated. After the collected data were coded to SPSS package program, frequency (f), percentage (%) and cross table (Crostab) and X square (X2) operation were applied as statistical operations. According to instructor and student variables, each answer was interpreted taking percentage (%) distribution and 0.05 confidence interval into consideration. As a result we can say that; the opinions of instructors and students to prevent unwanted classroom behaviours that disturb education are not professional; they are instructor and student centred; they do not remove or prevent the reasons of negative behaviours and they are only temporary solutions with variable warnings. © 2011 Academic Journals.Öğe Morphometric evaluation of the effect of methenolone enanthate on femoral development in adolescent rats(2011) Bozkurt I.; Pepe K.; Ozdemir M.; Ozdemir O.; Coskun A.The effect of Methenolone Enanthate (ME), one of the Anabolic-Androgenic Steroids (AAS), used as a muscle amplifier and for doping by athletes, on the femur bone development of adolescent male and female rats has been researched in this study. Three different groups for each male and female rat, including 8 rats of each, (ME, V, C) were formed and a total of 48 rats were used. The subject groups were given 0.5 mg/kg methenolone enanthate (Primobolan® Depot, Bayer) dilued in peanut oil, 0.5 ml; all animals received five intraperitonal injections weekly for four weeks. The rats were euthanized at the end of the four weeks and both femurs dissected and macerated. The length, corpus thickness, compact bone thickness and medulla canal diameter were measured with calipers and the average of each was noted. The effect of ME administration on femur length and corpus femoris thickness was negative in male animals but positive in females and was determined to be statistically significant (p<0.05) in both cases. There was no treatment-related difference in compact bone thickness and medulla diameter (p>0.05), while a significant difference (p<0.05) had been seen between the sexes in medulla diameter in the control groups. It was concluded that, the ME effect on rat femurs, similar to that of other AAS, consists in supressing bone growth in male animals while enhancing in females during pubertas. Rat models show negative middle-term and long-term effects of this agent, which is still widely in use as a performance enhancer, as opposed to its positive results in the short term. © 2011 Academic Journals.Öğe Morphometric evaluation of the effect of methenolone enanthate on humeral development in adolescent rats(2011) Bozkurt I.; Ozdemir M.; Pepe K.; Ozdemir O.; Coskun A.The effect of methenolone enanthate (ME), one of the anabolic-androgenic steroids (AAS), used as a muscle amplifier and for doping by athletes, on the humerus bone development of adolescent male and female rats has been researched in this study. Three different groups for each male and female rat, including 8 rats of each, (ME, V, C) were formed and a total of 48 rats were used. The subject groups were given 0.5 mg/kg methenolone enanthate (Primobolan® Depot, Bayer) diluted in peanut oil, 0.5 ml; all animals received five intraperitoneal injections weekly for four weeks. The rats were euthanized at the end of the four weeks and both humerus dissected and macerated. The length, corpus thickness, compact bone thickness and medulla canal diameter were measured with calipers and the average of each was noted. The effect of ME administration on humerus length and corpus femoris thickness was negative in male animals but positive in females and was determined to be statistically significant (p<0.05) in both cases. There was no treatment-related difference in compact bone thickness and medulla diameter (p>0.05), while a significant difference (p<0.05) had been seen between the sexes in medulla diameter in the control groups. Humerus compact bone density in male rats and medulla canal diameter of female rats are significant in terms of the difference between groups (p<0.05), and gender effect on the change arising in medulla canal diameter as a result of ME administration has been revealed to be insignificant (p>0.05). It was concluded that the ME effect on rat humerus, similar to that of other AAS, consists in supressing bone growth in male animals while enhancing it in females during puberty. Rat models show negative middle-term and long-term effects of this agent, which is still widely in use as a performance enhancer, as opposed to its positive results in the short term. ©2011 Academic Journals.
