The purpose of this work is to determine the knowledge level of the special education teachers about genetic disorders. A total of 83 teachers’ from working on special education centers were used. Knowledge of cell division was the highest among participants (33.7%). However, majority of the participants specified that they had no information about genetic counselling (80.7%), prenatal genetic diagnosis (79.5%), polygenic inheritance (72.3%), mitochondrial inheritance (71.1%), autosomal dominant and recessive genes (65.1% and 63,9% respectively). The majority of the participants were mostly aware of Down syndrome (69.9%) followed by Rh factor (31.3%), diabetes (27.7%), muscular dystrophy (24.1%) and albinism (24.1%). Our results showed that the majority of respondents were lack of adequately enough genetic knowledge.

In this study, geometric properties (bond angles, bond lengths and dihedral angles), thermodynamic parameters, electronic properties (total energy, dipole moment), the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO), Mulliken atomic charges of 3-phenyl-4-[4-(dimethylamino)benzylidenamino]-4,5-dihydro-1H-1,2,4-triazol-5-one (1) and 1-acetyl-3-benzyl-4-[4-(dimethylamino)benzylidenamino]-4,5-dihydro-1H-1,2,4-triazol-5-one (2) have been investigated by using Gaussian 09W program. The spectroscopic and structural data of compounds 1 and 2 have been calculated by using 6- 31G(d,p) basis set with density functional method (DFT/B3LYP) and Hartree-Fock method (HF) and compared with experimental values.

Bootstrap methods are procedures which enable to make inference when the distribution of estimator or test statistics is unknown, and based on the principle of generating new samples by using the original random sample with replacement. In bootstrap methods, how number of bootstrap samples, trimming proportion if they are used with a method that involves trimmed mean and population distribution affect the performance of the methods are issues that have been discussed [1-7]. In this study; with the aim of performing one sample hypothesis testing use of Tukey-McLaughlin test [8] with bootstrap-t and percentile bootstrap, and with the aim of performing two samples hypothesis testing use of Yuen test [9] with bootstrap-t and percentile bootstrap are used. The performances of these methods are compared in terms of actual type 1 error rates by using different number of bootstrap samples, trimming proportions and population distributions. The comparison is done with a simulation study by using theoretical distributions and two real data sets. Suggestions for the method to be used, trimming proportion and number of bootstrap samples are developed.

In this paper, we study the mixed Volterra-Fredholm integral equations of the second kind by means of optimal homotopy asymptotic method (OHAM) and Homotopy Perturbation method (HPM).Our approach is independent of time and contains simple computations with quite acceptable approximate solutions in which approximate solutions obtained by these methods are close to exact solutions. Comparison of these methods have been discussed. The accuracy and efficiency of OHAM approach with respect to Homotopy Perturbation method (HPM) is illustrated by presenting four test examples. The results indicate that the OHAM is very effective and flexible to use with respect to HPM.

In this study, municipal wastewater treatability has been investigated with commercial and laboratory scale fabricated polymeric membranes having different characteristics. Studies were performed using 4 commercial membranes (UP005, UP020, US100 and NF270) and 5 polyacrylonitrile (PAN) membranes prepared with different ratios of chitosan (Ct) and Fe3O4 in a vertical flow flat plate membrane module. The maximum yield for the removal of organic substances in municipal wastewater (70%, COD) was obtained by 2% Fe3O4 / PAN membrane. According to the membrane filtration flux, there is no significant effect of chitosan and Fe3O4 nanoparticles on flux. The reduction of filtration flux have occurred due to the accumulation of the considerable amount of organic and inorganic suspended solids on the membrane surface. Also, in this study, characterization of fouled membranes were performed using scanning electron microscope (SEM), attenuated total reflection-fourier infrared (ATR-FTIR) spectroscopy and contact angle device. According to the results of characterisation studies, 57.54% carbon (C), 38.23% oxygen (O) and trace amounts of Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Fe elements were determined on the surface of fouled membranes. The results showed that polymeric membranes which modified with high property additives would be provided efficient municipal wastewater treatment.