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Öğe Bilateral bone perforation caused by Coenurus cerebralis in a sheep: case report [Bir koyunda Coenurus cerebralis'in neden olduğu bilateral kemik perforasyonu: olgu sunumu.](2006) Güçlü F.; Uslu U.; Ozdemir O.Coenurus cerebralis is a cestode located in the brain and spinal cord of sheep that causes atrophy and perforation of the brain. In this study, a skull perforation caused by Coenurus cerebralis was reported in a sheep.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.Öğe Network coded noncoherent cooperative communications [A? kodlamali evre uyumsuz işbirlikli iletişim](IEEE Computer Society, 2014) Karabulut M.A.; Ilhan H.; Ozdemir O.In recent years, network coding has received significant attention as an innovative approach that improves the spectral efficiency of wireless communication systems. The Multiple Access Relay Channel (MARC) where multiple users communicate with a common destination via a relay, is one of the important network coding applications in wireless cooperative communications. In this paper, error performance of MARC system non-coherent BFSK technique is studied. This technique, which employs training sequences, is a prominent approach for decreasing the system complexity and cost by eliminating the need for channel estimation. The numerical results for Rayleigh fading channels have shown that proposed approach provides full diversity gain. © 2014 IEEE.
