Archives-August 2016

Child Second Language Acquisition is one of the sub-areas in second language studies. Bilingualism is also considered to be an advantageous concept in terms of social, economic and educational contributions. In child language acquisition, imperatives are among the commonly used utterances that ask children to carry out a certain direction. In this research it is aimed to give information about child SLA and to show the contributions of the use of ‘Imperatives’ in child SLA. The study is a qualitative narrative research design. At the end of three months, Eren is able to carry out the exercised directions in English.

The corrosion inhibition of mild steel in 1.0 M HCl solution was investigated using Hexamethylene tetramine (hexamine) as a corrosion inhibitor by using different techniques i.e. weight loss method, potentiodynamic polarization and Electrochemical Impedance Spectroscopic (EIS) at 35.0o C. Further, the surface study of corroded specimen was carried out by inverted trinocular metallurgical research microscopy. It was observed that the percentage corrosion inhibition efficiency increases with increase in the concentration of inhibitor. The maximum percentage corrosion inhibition efficiency was 93.0 % at a concentration of 800 ppm. Impedance study shows the increases in Rct value with increase in the concentration of inhibitor. Potentiodynamic polarization studies showed that Hexamine behave as mixed type of corrosion inhibitor. Results obtained from corrosion experiments shows that Hexamine is a very good corrosion inhibitor for mild steel in 1.0 M HCl.

In this paper, in order to show some interesting phenomena of fourth-order hyperchaotic autonomous electric circuit with a smooth cubic nonlinearity, different kinds of attractors, time waveforms and corresponding power spectra of systems are presented, respectively. The perturbation transforms an unpredictable hyperchaotic behavior into a predictable hyperchaotic or periodic motion via stabilization of unstable, aperiodic, or periodic orbits of the strange hyperchaotic attractor. One advantage of the method is its robustness against noise. A theoretical analysis of the circuit equations is presented, along with experimental simulation and numerical results.

Background: During the embryonic development, a complex program defines the normal neural tube development, alteration in this process, results in Neural Tube Defects (NTD). Aim: The present study found the effects of progesterone, more than the physiological value in neural tube development of chick embryos. Materials and methods: 240 fertile, pathogen-free eggs, incubated at 37.50C and 75% relative humidity until the embryos reached stage ten of development. The eggs were divided into five equal groups. Statistical Analysis Used: None. Conclusions: Our study showed that progesterone at the ten and twenty times more than its physiological values caused NTDs.

In parametric speech synthesis algorithms, a sequence of signals corresponding to phonemes is generated. However, synthesized speech tends to be unnatural as the vocal tract transition from one phoneme to another is not considered in most of the existing algorithms. This paper attempts to model the phoneme transition by extracting the speech parameters by means of Linear Time Varying system based Auto Regressive model. To reduce the capacity Speech parameters were represented in a polynomial equations. Sinusoidal Noise model was used to reconstruct the phoneme transition region. The results show moderate correlation of reconstructed transition regions with synthesized signal for different orders of polynomial.

This paper studies the behavior of both green cement and Geopolymer concrete. Twenty-seven concrete mixes were prepared and tested in the fresh and hardened state. The properties of both Ordinary Portland Cement Concrete (OPCC) and Geopolymer concrete (GC) incorporating quarry limestone waste as a replacement of fine aggregate were studied. It was found that quarry waste fine aggregate increased the slump of fresh cement and Geopolymer concrete up to 50% as a replacement for fine aggregate. Improvements of properties of both cement and Geopolymer concrete were detected when quarry waste fine aggregate was replaced up to 50% of fine aggregate. The overall test results revealed that quarry limestone waste fine aggregate can be consumed efficiently in both cement and Geopolymer concrete up to 50%.

Patients withbladderexstrophy have a higherrisk of bladder cancer, usuallyadenocarcinomakind . The squamouscellcarcinomais rare, withonly 12 cases reported in the literature. We report one case of squamouscellcarcinoma of bladderexstrophyoccursunrepairedchild in a 34 yearsold man.

Crystals of potassium hydrogen phthalate (KAP), a semi-organic compound, have been grown by slow evaporation method at room temperature from aqueous solution in the presence of mono valent metal ionic impurities Ag+, Li+ and Na+. Elemental analysis by inductively coupled plasma optical emission spectroscopy (ICP-OES) proves the incorporation of these impurities into the grown crystals. Powder X-ray diffraction studies confirmed the phase formation and metal ions doping into KAP crystals. Thermo gravimetric analysis (TGA) show the onset decomposition temperatures to be 255, 258, 238 and 272°C for pure and Ag+, Li+ and Na+ doped KAP crystals respectively. Microhardness studies revealed that Na-KAP crystals have higher hardness values than all the doped crystal. All the crystal exhibited the second harmonic generation (SHG) conversion efficiency. The grown crystals were also subjected to Fourier transform infrared (FTIR) spectroscopy, UV-Vis spectroscopy studies and dielectric studies. Among the three investigated metal ion impurities, Na+ ion seem to have positive influence on the growth, mechanical, thermal, dielectric and SHG characteristics of KAP which makes it suitable for limited level of applications.

Optical quality single crystal of Piperazine di-orthophosphate (PDOP) has been synthesized and grown by slow evaporation solution growth technique. Single crystal X-ray diffraction study reveals that the crystal belongs to triclinic system with space group P-1. The powder X-ray diffraction spectrum was recorded and the peaks were indexed. UV-Vis absorption spectrum shows that the crystal is transparent in the entire visible region. The functional groups present in the material were interpreted by FTIR spectral analysis. Thermal analysis carried out on the compound reveals that the sample is stable upto 160º C. The second harmonic generation efficiency of the title material is 0.85 times higher than that of the standard KDP crystal.

The suggestion and the hypnosis has been used since ancient times, both magical - religious and curative purposes. Considering that the disease creates a weakness, anguish and uncertainty, the patient is experiencing a period of regression and resignation which will increase the sensitivity to suggestion. To increase the effectiveness of psychotherapy, which is used in the treatment of mental disorders, it is necessary that between therapist and patient to be a reciprocal respect and consideration. The patient must believe that the therapist understands his problems, accept difficulties as being usual and solvable, this fact is generated him a sense of support and hope. Without trust curing the disease becomes almost impossible. Besides the direct approach of problems, even the non – verbal behavior of the therapist is very important, because it may be the vehicle of both positive and negative suggestions. The expectations of the patient have also a highly suggestive potential, either negative or positive. This relationship between therapist and patient has great importance also concerning the placebo effect. The therapeutic effect is based on faith, suggestion, motivation, expectancy and the prestige of the therapist. The responsibility of the therapeutically act favor the appearance of knowledge and influence suggestive strategies.