M. Dursun Kaya

A new approach to estimate anthropometric measurements by adaptive neuro-fuzzy inference system

Abstract Eighteen anthropometric measurements were taken in standing and sitting positions, from 387 subjects between 15 and 17 years old. “Adaptive Neuro-Fuzzy Inference System (ANFIS)” was used to estimate anthropometric measurements as an alternative to stepwise regression analysis. Six outputs (shoulder width, hip width, knee height, buttock-popliteal height, popliteal height, and height) were selected for estimation purpose. The results showed that the number of inputs required estimating outputs varied with sex difference. ANFIS perform better than stepwise regression method for both sex groups, as revealed by the standard deviations averaged over the six outputs: S ANFIS =0.776, S Regression =0.855 for boys and, S ANFIS =0.883, S Regression =1.027 for girls. Relevance to industry More recently, as industry and marketing reach around the globe, body size has become a matter of practical interest to designers and engineers. In ergonomics anthropometric data are widely used to specify the physical dimension of workspaces, equipment, furniture and clothing. This is especially true for school children, which spend most of their time sitting at their chairs and desks and ought to be able to adopt comfortable body postures.

Precipitating factors of migraine attacks in patients with migraine with and without aura

AbstractStudies specifically devoted to precipitating factors in migraine are rare. The aim of the study was to determine the triggers of migraine in a population attending the neurology clinic. One hundred and eighty-five patients who fulfilled the diagnostic criteria for migraine as proposed by the International Headache Society were evaluated by means of a personal interview. The mean age was 32.37 ± 10.16 years, and the mean duration of migraine was 9.30 ± 7.58 years; 74.1% (137 patients) met criteria of migraine without aura and 25.9% (48 patients) of migraine with aura. Stress and mental tension (70.8%) were found to be the most common precipitants of both migraine without aura and migraine with aura. Other common precipitants were lack of sleep (48.4%), noise (42.2%), not eating at right times (41.6%), types of food and drink (32.9%), light (31.9%), menstruation (31%), smell (25.9%), fatigue (21.6%), heat/cold weather (16.8%), smoking (15.7%), travel (9.2%), and sexual activity (1.1%). The distribu...

Chromosome abnormalities in protein-energy malnutrition

Abstract The present study attemps to investigate the impact of protein-energy malnutrition (PEM) on chromosomal abnormalities in children. Sixty-seven children suffering from marasmus, marasmic-kwashiorkor, and kwashiorkor were chosen from the inpatient Pediatric Department of Medical Faculty of Ataturk University. They were matched by age, sex, and socioeconomic status to twenty-five health children (control). After 72 hours, 100 cultured lymphocyte cells from each subject were analyzed. The frequency of chromosome abnormalities was found to be nearly nine time greater among children with PEM compared to controls (12.59% versus 1.24% respectively); the difference was statistically highly significant, p

Are New Generations Getting Bigger in Size? Anthropometric Measurements in Erzurum

OBJECTIVE When the dimensional measurements of the students who spend most of their time at school are taken into consideration, inappropriate dimensions of school equipment may affect their body and psychological improvements negatively. Anthropometric measurements are necessary for designing the educational equipment of the children at school. It is emphasized that anthropometric measurements of the people living in different climate and altitude conditions will be different. It is mentioned that anthropometric data available for a certain region will be able to change as a result of changing socio-economical conditions and therefore, anthropometric data update is necessary at certain periods. MATERIALS AND METHODS In 2000 anthropometric data obtained from the children between the age of seven and fifteen, who were in sitting and standing positions, were measured with a repeated measurement in the same schools in 2007. RESULTS Mean values of the heights of elbow at standing position of the female students, 8 years old, increased from 72.38 cm in 2000 to 74.67 cm in 2007 (p<0.001). Most of the other measurements in 2007 were larger than those in 2000, giving the impression that new generation children are getting larger in size. CONCLUSION As reported in the literature, anthropometric data should be updated at certain period of times.