Abstract:The solutions of the reaction-di usion system are given by method of collocation based on the exponential B-splines. Thus the reaction-di usion system turns into an iterative banded algebraic matrix equation. Solution of the matrix equation is carried out by way of Thomas algorithm. The present methods test on both linear and nonlinear problems. The results are documented to compare with some earlier studies by use of L∞ and relative error norm for problems respectively.

Background:Diabetes mellitus type 1 is the most common endocrine metabolic disorder occurring in childhood and adolescence due to the autoimmune destruction of pancreatic beta cells as a result of various environmental factors interacting with an underlying genetic predisposition. Diabetes is a risk factor for early onset atherosclerosis, and the high mortality rate seen in these patients is partially related to cardiovascular diseases.Objectives:This study was conducted to compare mean platelet volume as a marker of early atherosclerosis with aortic intima-media thickness in children with type 1 diabetes and to identify its correlation with known cardiovascular risk factors.Patients and Methods:The study included 27 patients between age range of 6 and 17 years that were diagnosed with type 1 diabetes and 30 healthy children of the same age range who did not have any chronic disease. In both groups, we used the color Doppler ultrasound to measure children’s aortic intima-media thickness and identify their mean platelet volumes.Results:There was no significant difference between the groups regarding gender distribution, age, High-Density Lipoprotein (HDL) and Low-Density Lipoprotein (LDL) cholesterol levels (P > 0.05). Also no significant difference could be documented between the patient and control groups regarding the aortic intima-media thickness and mean platelet volume (P > 0.05). However, there was a significant correlation between aortic intima-media thickness and mean platelet volume (r = 0.351; P < 0.05).Conclusions:In the present study, there was no evidence of early atherosclerosis in children with type 1 diabetes. However, mean platelet volume having a significant correlation with aortic intima-media thickness may be useful as an early marker of atherosclerosis.

No abstract

The exponential cubic B-spline algorithm is presented to find the numerical solutions of the Korteweg-de Vries (KdV) equation. The problem is reduced to a system of algebraic equations, which is solved by using a variant of Thomas algorithm. Numerical experiments are carried out to demonstrate the efficiency of the suggested algorithm.

In this study the Kuramoto-Sivashinsky (KS) equation has been solved using the collocation method, based on the exponential cubic B-spline approximation together with the Crank Nicolson. KS equation is fully integrated into a linearized algebraic equations. The results of the proposed method are compared with both numerical and analytical results by studying two text problems. It is found that the simulating results are in good agreement with both exact and existing numerical solutions.

BackgroundPerioperative hemodynamic fluctuations are seen more often in hypertensive patients than in normotensive patients. The purpose of our study was to investigate the perioperative hemodynamic effects of dexmedetomidine and midazolam used for premedication in hypertensive patients relative to each other and in comparison to normotensive patients.MethodsOne-hundred-forty female, normotensive or hypertensive patients undergoing myomectomies or hysterectomies. They were randomly enrolled into the subgroups: Group ND (normotensive-dexmedetomidine); Group HD (hypertensive-dexmedetomine); Group NM (normotensive-midazolam); Group HM (hypertensive- midazolam). Dexmedetomidine was administered at a concentration of 0.5 μg.kg−1, and midazolam was administered at a concentration of 0.025 μg.kg−1 via intravenous (IV) infusion before the induction of anaesthesia. Haemodynamic parameters were recorded at several times (Tbeginning, Tpreop5 min, Tpreop 10 min, Tinduction, Tintubation, Tintubation5 min, Tinitial surgery, Tsurgery 15 min, Tsurgery 30 min, Textubation, Textubation 5 min). Propofol amount for induction, time between induction and initial surgery, demand of antihypertensive therapy, rescue atropine were recorded. Quantitative clinical and demographic characteristics were compared using One Way ANOVA. The values were compared using One-way Analysis of Variance. Additionally periodic variations were examined by One way Repeated Measures Analysis of Variance for groups separately.ResultsSBP was significantly different between normotensive and hypertensive groups at the following time points: Tpreop 5 min, Tpreop 10 min, Tinduction, Tintubation, Tintubation 5 min and Tinitial surgery. MBP was significantly different in the hypertensive groups at Tinduction, Tintubation, Tintubation 5 min, Tinitial surgery, Tsurgery 15 min, Tsurgery 30 min, Textubation and Textubation 5 min. The perioperative requirements for antihypertensive drugs were significantly higher in Group HM.ConclusionIn the hypertensive patients, dexmedetomidine premedication provides better hemodynamic stability compared with midazolam, and because it decreases the antihypertensive requirements, its use might be beneficial.Trial registrationTrial registration: Clinicaltrials.gov identifier: NCT02058485.

No abstract

ABSTRACT. This research was conducted to examine music education applications and the problems with of early childhood teachers working at preschools in Ankara city center. The study included randomly selected 212 early childhood teachers from 166 schools. When data were analyzed, the followings were determinated; 57,08 % of teachers do not use instruments during the activities; 55,66 % of teachers do not have enough instruments for each child in their classroom. Data also suggested that; teachers do not do musical activities primarily; 37, 45 % of teachers primarily ask children to imitate objects, such as animal or etc. in order to support creative dance activities. Consequently, the study suggested that teachers apply the activities which they are knowledgeable but their knowledge is insufficient. Therefore, the teachers need in-service education in different areas of music.Keywords: Early childhood teachers, Music education, Rhtym, Creative dance, Teaching song, Sound listening and differentiation. * Assist. Prof. Dr., Gazi University, Vocational Education Faculty, Department of Child Development Education, Ankara, Turkey. E-mail:ozlemer@gazi.edu.tr ** Res. Assist., Gazi University, Vocational Education Faculty, Department of Child Development Education, Ankara, Turkey. E-mail:zeynepdere@gazi.edu.tr Özlem ERSOY, Zeynep DERE 250 SUMMARYPurpose and Significance: This research was conducted to examine music education applications and the problems with of early childhood teachers working at preschools in Ankara city center.