DelIceoglua G.,Krkkale University
Turkiye Klinikleri Journal of Medical Sciences | Year: 2015
This study compares performance levels among early, average, and late maturing boys and girls. So, the purpose of this study is to compare the age and gender related differences in motoric functions of according to chronological and biological age. Material and Methods: Research groups consist of ngirl=362 nboy=331 with different academy of junior sports hall changing their age from 7 to 11 years, child players were instructed to give their maximal efforts during all tests. The research groups’ training age (mean=1.77±0.28 year) was attained. All child trained three days a week (1-1.5 h of training day). Chronological age was calculated by subtracting the participant's date of birth from the observation date transformed into decimal age (in years) and maturity offsets were calculated. The research groups were measured for mass, standing height and sitting height. Leg length was calculated by subtracting the participant's sitting height from their standing height. Body mass was measured using a strain gauge scale and body mass index was calculated. For the physical and motoric attributes, stretching, high jump, long jump, hand grip, medicine ball throw, velocity and agility test were applied. Results: As a result, chronological age has an important influence on more complex tasks in which coordination, the performance superiority was appeared. When examining the performance parameters according to age change in terms of gender, the boys at every age except 10 years, are superior in velocity, hand grip, medicine ball, agility and long jump parameter adds to these superiorities after 9 years. From the differences obtained in terms of performace parameters, it is seen that who is at the level of early maturity is superior. Conclusion: In this context, as a result of the research, it can be said that the maturity coefficient has positive effects in performance at different ages. © 2015 by Türkiye Klinikleri.
Can M.F.,Mustafa Kemal University |
Altug N.,Krkkale University
Veterinary Quarterly | Year: 2014
Abstract: Background: Biosecurity plays a crucial role in preventing contagious diseases and in increasing farm productivity.Objective: To determine technical and economic biosecurity scores of farms, and to examine the associations between biosecurity practices (BP) and producers’ socioeconomic characteristics.Methods: The study was conducted on a total of 50 small-scale dairy farms that were randomly selected in Hatay, Turkey. A checklist consisting of 19 biosecurity practices was addressed to the farms. The technical and economic scoring systems were developed by the authors according to presence and cost of the each of the biosecurity practices.Results: The mean of the technical and economic scores were found to be 9.30 and 17.04, respectively. ‘Treatment of sick animals’ (98%), ‘vaccination against the most common contagious diseases’ (90%), and ‘barn lime’ (86%) were found to be the most commonly used applications. ‘Testing for the most common contagious diseases before buying’ (10%) was used at the lowest rate. Significant differences were found among the groups regarding education level (<.05), income class (<.05), and herd size (<.01). Biosecurity scores were significantly positively correlated with herd size (<.05) and producers’ education level (<.01). There were statistically significant associations between the producers’ socioeconomic characteristics and some of the biosecurity practices.Conclusion: Training programs should be arranged to change the attitudes and perception of small-scale producers concerning poor biosecurity practices. In order to encourage producers to increase biosecurity scores, regulations regarding financial support and penalties could be quite useful at both the regional and national levels. © 2014, © 2014 Taylor & Francis.
Temocin Z.,Krkkale University
Journal of Biomaterials Science, Polymer Edition | Year: 2013
This study focuses on Candida rugosa lipase (CRL) immobilization by covalent attachment on poly(ethylene terephthalate)-grafted glycidyl methacrylate (PET-g-GMA) fiber. The immobilization yielded a protein loading of 2.38 mg g-1 of PET-g-GMA fiber. The performances of the immobilized and free CRLs were evaluated with regard to hydrolysis of olive oil and esterification of oleic acid. The optimum activity pH of the CRL was changed by immobilization to neutral range. The maximum activity of the free and immobilized CRLs occurred at 40 and 45 °C respectively. The immobilized lipase retained 65% of its original activity at 50 °C for 2 h. It was found that the immobilized lipase stored at 4 °C retained 90% of its original activity after 35 days, whereas the free lipase stored at 4 °C retained 69% of its original activity after the same period. In the esterification experiments, the immobilized CRL could maintain a high activity at a water content range from 1.5 to 6% (v/v), while the activity of free CRL showed a clear dependence on water content and decreased rapidly at above 3% (v/v) water content. In addition, after five reuses, the esterification percent yield of the immobilized CRL slightly decreased from 29 to 27%. © 2013 Taylor and Francis Group, LLC.
Malondialdehyde and nitric oxide levels and catalase, superoxide dismutase, and glutathione peroxidase levels in maternal blood during different trimesters of pregnancy and in the cord blood of newborns
Yuksel S.,Ankara University |
Yigit A.A.,Krkkale University
Turkish Journal of Medical Sciences | Year: 2015
Background/aim: To determine whether levels of malondialdehyde (MDA), nitric oxide (NO), superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) change during the 3 trimesters of pregnancy, and to compare the third trimester of pregnancy with newborn cord blood in respect to the levels of MDA, NO, and antioxidant enzymes. Materials and methods: Maternal blood samples were collected at 9–13, 22–26, and 36–40 weeks of gestation. Cord blood was collected at the time of delivery. Results: NO levels and GPx activity were higher in the second and third trimesters than in the first trimester. MDA level was lower in the third trimester and SOD and CAT activities were lower in the second and third trimesters than the first trimester. In cord blood, MDA and NO levels were lower while CAT and GPx activities were higher than in the third trimester of pregnancy. Conclusion: These results suggest that the balance of free radical and antioxidant production during pregnancy ensures healthy fetus growth and development. © TÜBİTAK
Ozcan U.,Selcuk University |
Kellegoz T.,Krkkale University |
Toklu B.,Gazi University
International Journal of Production Research | Year: 2011
Mixed-model assembly lines are widely used to improve the flexibility to adapt to the changes in market demand, and U-lines have become popular in recent years as an important component of just-in-time production systems. As a consequence of adaptation of just-in-time production principles into the manufacturing environment, mixed-model production is performed on U-lines. This type of a production line is called a mixed-model U-line. In mixed-model U-lines, there are two interrelated problems called line balancing and model sequencing. In real life applications, especially in manual assembly lines, the tasks may have varying execution times defined as a probability distribution. In this paper, the mixed-model U-line balancing and sequencing problem with stochastic task times is considered. For this purpose, a genetic algorithm is developed to solve the problem. To assess the effectiveness of the proposed algorithm, a computational study is conducted for both deterministic and stochastic versions of the problem. © 2011 Taylor & Francis.