Mood Structure Analysis of Teacher Talk in Efl Classroom: a Discourse Study Based on Systemic Functional Linguistic Theory

Penelitian ini bertujuan menganalisis pembicaraan guru laki dan perempuan pada Mata Pelajaran Bahasa Inggris. Analisis tersebut dimaksudkan untuk menemukan realisasi dari Mood pada pembicaraan guru, realisasi Mood pada peran guru, dan perbedaan antara pembicaraan guru laki dan perempuan yang kaitannya dengan realisasi Mood. Penelitian ini merupakan penelitian kualitatif-deskreptif dan analisis diskursus. Data dikumpulkan melalui observasi seperti rekaman dan catatan lapangan. Data dianalisis dengan menggunakan Analisis Mood yang dipopulerkan oleh M.A.K Halliday. Untuk mendapatkan analisis yang lebih dalam, data ditrianggulasi dengan menginterview partisipan, dua guru senior dan satu pakar. Berdasarkan hasil analisis data, temuan penelitian ini dapat dinyatakan sebagai berikut: (1) Guru laki menggunakan tujuh jenis speech function dan guru perempuan menggunakan delapan jenis speech function selama proses interaksi di kelas. Semua speech function tersebut pada umumnya direalisasikan dalam dua jenis: Typical clause Mood dan Non-typical clause Mood. (2) penggunaan secara dominan hampir di semua speech function pada peran tertentu, misalnya sebagai pengontrol, menununjukkan bahwa ada hubungan antara peran guru dengan realisasi Mood. (3) ada perbedaan ujaran guru laki dengan guru perempuan di dalam memilih sistem Mood di dalam mengungkapkan makna interpersonal kepada siswa seperti: memberikan informasi, memberikan pertanyaan, meminta siswa melakukan sesuatu, dan menawarkan siswa sesuatu. Factor idiologi, kultur dan social dari para guru tersebut diyakini sebagai faktor yang mempengaruhi perbedaan tersebut. Kata Kunci : Mood Structure, Teacher Talk, EFL Classroom This study aims at analyzing male and female teacher talk in EFL classroom. The analysis was meant to find out the realization of Mood in teacher talk, the realization of Mood in teacher's role, and the difference between male and female teacher talk in terms of speech functions in relation to Mood realization. It was designed as a descriptive-qualitative research, and discourse analysis. Data were collected through observations i.e. recording and note-taking as the main source. The data were analyzed using Mood structure analysis suggested by M.A.K Halliday. To gain deeper analysis, the data were triangulated by interviewing the participants, two senior English teachers i.e. male and female teachers, and one linguist. Based on the results of the data analysis, the findings of this research can be stated as follows: (1) Male teacher employed seven speech functions and female teacher employed eight speech functions during their classroom interaction. Those speech functions were commonly realized in two types: Typical clause Mood and Non-typical clause Mood in making interpersonal meaning among the students. (2) The dominant use of almost all speech functions in a certain role i.e. a controller role indicates that there is a relation between teacher's role and Mood realization. (3) There are some differences of male and female teacher talk in selecting Mood system in expressing interpersonal meaning to the students i.e. in giving information, in asking a question, in demanding the students to do something, and in offering something to the students. Ideological, cultural and social factor of the teachers are believed as the contribution to the differences. keyword : Mood Structure, Teacher Talk, EFL Classroo

Analysis of Crystal Structure and Dielectric of Zn2+ Ion Doped Nanoparticle Magnetite Based on Iron Sand Synthesized by Coprecipitation Method

Zn2+ ion doped Fe3O4 nanoparticles based on iron sand have been successfully synthesized by coprecipitation method at low temperature. The starting materials were iron sand, ZnCl2, HCl, and NH4OH. Characterizations were conducted by means of X-Ray Flourescence (XRF), X-Ray Diffraction (XRD) and digital capacitance meter AD5822. XRF identification confirms that the elemental composition of all samples is appropriate with the stoichiometry calculation. Phase formation identification by using High Score Plus and DDView+PDF2 software reveals that all samples crystallize in cubic spinel structure. Rietveld refinement analysis bymeans of Reitica yields the doping of Zn2+ ion on Fe3O4 increases the lattice parameter with crystal size in the order of nanometer. This is in line with theoretical predictions as a consequence of the influence of Zn2+ ionic radii that replace Fe2+. Furthermore, dielectricity analysis shows that the higher the amount of Zn2+ doped Fe3O4 nanoparticles the higher the dielectric constant. This mechanism is ionic polarization phenomenom as consequence of the decreasing in the crystal volume and the atomic distance that lead to increase the moment of dipole

Analysis of Generic Structure in Writing Descriptive Text at the Ninth Grade Students of SMPN 3 Rambah Hilir

Purpose of this research was to analyze the generic structure of descriptive text that writen by students of SMPN3 Rambah Hilir. in collecting the data, the researcher used the writing test. The results showed that students'skills in generic structure of writing descriptive text at SMPN 3 Rambah Hilir as follows: 3 students (6%)wasgood categories, 32 students (30%) wasfaircategory, and 15 students (64%) was poor cat

Analysis Structure Of Epilithic Diatoms Community In Coastal Waters Of Dumai Riau Province

This research was conducted in June 2015 in the coastal waters of Dumai RiauProvince. This study observed the variety, abundance and community structure ofepilithic diatoms contained in coastal waters and to inform about the ecology of aquaticenvironment. The epilithic diatoms sample were collected in the field and identified inthe Marine Biological Laboratory of Marine Science Department, Faculty of Fisheriesand Marine Sciences, University of Riau. The number of genus recorded were 8 genera,namely Cymatopleura, Dactyliosolen, Leptocylindrus, Nitzschia, Rhabdonema,Rhizosolenia, Thallassiothrix and Triceratium. Epilithic diatoms genus found in eachstation was Rhabdonema. The genus can be bound or attached to rocks because it has acosmopolitan nature in which not susceptible to flow. The values of diversity index (H'), dominance (D) and diversity (E) indicated that the condition of coastal waters Dumaiunder pressure and moderate pollution levels, no diatoms dominated, uniformitybalanced and no competition of food and places. Based on the calculation of theabundance of diatom ANOVA test did not differ significantly between stations

Crystal structure analysis of intermetallic compounds

Study concerns crystal structures and lattice parameters for a number of new intermetallic compounds. Crystal structure data have been collected on equiatomic compounds, formed between an element of the Sc, Ti, V, or Cr group and an element of the Co or Ni group. The data, obtained by conventional methods, are presented in an easily usable tabular form

Holographic analysis of diffraction structure factors

We combine the theory of inside-source/inside-detector x-ray fluorescence holography and Kossel lines/x ray standing waves in kinematic approximation to directly obtain the phases of the diffraction structure factors. The influence of Kossel lines and standing waves on holography is also discussed. We obtain partial phase determination from experimental data obtaining the sign of the real part of the structure factor for several reciprocal lattice vectors of a vanadium crystal.Comment: 4 pages, 3 figures, submitte

Structure analysis of biologically important prokaryotic glycopolymers

Of the many post-translational modifications organisms can undertake, glycosylation is the most prevalent and the most diverse. The research in this thesis focuses on the structural characterisation of glycosylation in two classes of glycopolymer (lipopolysaccharide (LPS) and glycoprotein) in two domains of life (bacteria and archaea). The common theme linking these subprojects is the development and application of high sensitivity analytical techniques, primarily mass spectrometry (MS), for studying prokaryotic glycosylation. Many prokaryotes produce glycan arrangements with extraordinary variety in composition and structure. A further challenge is posed by additional functionalities such as lipids whose characterisation is not always straightforward. Glycosylation in prokaryotes has a variety of different biological functions, including their important roles in the mediation of interactions between pathogens and hosts. Thus enhanced knowledge of bacterial glycosylation may be of therapeutic value, whilst a better understanding of archaeal protein glycosylation will provide further targets for industrial applications, as well as insight into this post- translational modification across evolution and protein processing under extreme conditions. The first sub-project focused on the S-layer glycoprotein of the halophilic archeaon Haloferax volcanii, which has been reported to be modified by both glycans and lipids. Glycoproteomic and associated MS technologies were employed to characterise the N- and O-linked glycosylation and to explore putative lipid modifications. Approximately 90% of the S-layer was mapped and N-glycans were identified at all the mapped consensus sites, decorated with a pentasaccharide consisting of two hexoses, two hexuronic acids and a methylated hexuronic acid. The O-glycans are homogeneously identified as a disaccharide consisting of galactose and glucose. Unexpectedly it was found that membrane-derived lipids were present in the S- layer samples despite extensive purification, calling into question the predicted presence of covalently linked lipid. The H. volcanii N-glycosylation is mediated by the products of the agl gene cluster and the functional characterisation of members of the agl gene cluster was investigated by MS analysis of agl-mutant strains of the S-layer. Burkholderia pseudomallei is the causative agent of melioidosis, a serious and often fatal disease in humans which is endemic in South-East Asia and other equatorial regions. Its LPS is vital for serum resistance and the O-antigen repeat structures are of interest as vaccine targets. B. pseudomallei is reported to produce several polysaccharides, amongst which the already characterised ‘typical’ O-antigen of K96243 represents 97% of the strains. The serologically distinct ‘atypical’ strain 576 produces a different LPS, whose characterisation is the subject of this research project. MS strategies coupled with various hydrolytic and chemical derivatisation methodologies were employed to define the composition and potential sequences of the O-antigen repeat unit. These MS strategies were complemented by a novel NMR technique involving embedding of the LPS into micelles. Taken together the MS and NMR data have revealed a highly unusual O-antigen structure for atypical LPS which is remarkably different from the typical O-antigen. The development of structural analysis tools in MS and NMR applicable to the illustrated types of glycosylation in these prokaryotes will give a more consistent approach to sugar characterisation and their modifications thus providing more informative results for pathogenicity and immunological studies as well as pathway comparisons.Open Acces