This study aimed at discussing and representing discourse analysis of classroom talk in two contexts. It is significant, since it considers different genres of talk, cultural and social identities, social relations, different ideologies and many other aspects in this analysis. It attempts to analyze the dominant classroom patterns in two contexts. Two cases of study were analyzed in this study:...

Related Articles Multilayered graphene anode for blue phosphorescent organic light emitting diodes Appl. Phys. Lett. 100, 133304 (2012) Multilayered graphene anode for blue phosphorescent organic light emitting diodes APL: Org. Electron. Photonics 5, 82 (2012) Electroluminescence from strained germanium membranes and implications for an efficient Si-compatible laser Appl. Phys. Lett. 100, 13111...

To reduce the influence of noise in time series prediction, a neural network, the multilayered perceptron, is combined with smoothing units based on the wavelet multiresolution analysis. Two approaches are compared: smoothing based on the statistical criterion and smoothing which uses the prediction error as the criterion. For the latter an algorithm for simultaneous setting of free parameters ...

In this paper we present a spatial power combining architecture consisting of several interacting printed antenna arrays placed at dielectric interfaces in multilayered waveguide. Narrowband resonant patch and slot antennas used in earlier designs are replaced by tapered meander line antennas and their modifications, in order to increase the frequency bandwidth and efficiency of the system and ...

In the study, a retrieval approach is extended to determine the effective dynamic properties of a finite multilayered acoustic metamaterial based on the theoretical reflection and transmission analysis. The accuracy of the method is verified through a comparison of wave dispersion curve predictions from the homogeneous effective medium and the exact solution. A multiresonant design is then sugg...

The preparation of responsive multilayered structures with quarter-wave design based on layer-by-layer deposition of sol-gel derived Nb(2)O(5) films and spin-coated MEL type zeolite is demonstrated. The refractive indices (n) and thicknesses (d) of the layers are determined using non-linear curve fitting of the measured reflectance spectra. Besides, the surface and cross-sectional features of t...

Introduction: Essential oils are used as flavoring agents in various foods. Layer-by-Layer (LBL) technique is a method in which the material is dipped into a series of different solutions containing oppositely charged polyelectrolytes. The aim of this study is to investigate the effectiveness of a multilayered edible coating with an antimicrobial compound (Lemon and Peppermint) in enhancing the...

The method of moments (MOM) in conjunction with the generalized scattering matrix (GSM) approach is proposed to analyze transverse multilayered structures in a metal waveguide. The formulation incorporates ports as an integral part of the GSM formulation and so the resulting model can be integrated with circuit analysis. The proposed technique permits the modeling of interactive discontinuities...

The dual extrusion electrospinning technique was used to fabricate multilayered 3D scaffolds by stacking microfibrous meshes of poly(lactic acid-co-glycolic acid) (PLGA) in alternate fashion to micro/nano mixed fibrous meshes of PLGA and collagen. To fabricate the multilayered scaffold, 35 wt% solution of PLGA in THF-DMF binary solvent (3:1) and 5 wt% solution of collagen in hexafluoroisopropan...