Transport properties of hot-pressed bulk carbon nanotubes compacted by spark plasma sintering

Electrical and thermal transport properties of the carbon nanotube bulk material compacted by spark plasma sintering have been investigated. The electrical conductivity of the as-prepared sample shows a lnT dependence from 4 to 50 K, after which the conductivity begins to increase approximately linearly with temperature. A magnetic field applied perpendicularly to the sample increases the electrical conductivity in the range of 0-8T at all testing temperatures, indicating that the sample possesses the two-dimensional weak localization at lower temperatures (?50 K), while behaviors like a semimetal at higher temperatures (?50 K). This material acts like a uniform compact consisting of randomly distributed two dimensional graphene layers. For the same material, the thermal conductivity is found to decrease almost linearly with decreasing temperature, similar to that of a single multi-walled carbon nanotube. Magnetic fields applied perpendicularly to the sample cause the thermal conductivity to decrease significantly, but the influence of the magnetic fields becomes weak when temperature increases.

Assuming identities online:experimental linguistics applied to the policing of online paedophile activity

This article uses a research project into the online conversations of sex offenders and the children they abuse to further the arguments for the acceptability of experimental work as a research tool for linguists. The research reported here contributes to the growing body of work within linguistics that has found experimental methods to be useful in answering questions about representation and constraints on linguistic expression (Hemforth 2013). The wider project examines online identity assumption in online paedophile activity and the policing of such activity, and involves dealing with the linguistic analysis of highly sensitive sexual grooming transcripts. Within the linguistics portion of the project, we examine theories of idiolect and identity through analysis of the ‘talk’ of perpetrators of online sexual abuse, and of the undercover officers that must assume alternative identities in order to investigate such crimes. The essential linguistic question in this article is methodological and concerns the applicability of experimental work to exploration of online identity and identity disguise. Although we touch on empirical questions, such as the sufficiency of linguistic description that will enable convincing identity disguise, we do not explore the experimental results in detail. In spite of the preference within a range of discourse analytical paradigms for ‘naturally occurring’ data, we argue that not only does the term prove conceptually problematic, but in certain contexts, and particularly in the applied forensic context described, a rejection of experimentally elicited data would limit the possible types and extent of analyses. Thus, it would restrict the contribution that academic linguistics can make in addressing a serious social problem.

The Routledge handbook of forensic linguistics

The Routledge Handbook of Forensic Linguistics provides a unique work of reference to the leading ideas, debates, topics, approaches and methodologies in Forensic Linguistics. Forensic Linguistics is the study of language and the law, covering topics from legal language and courtroom discourse to plagiarism. It also concerns the applied (forensic) linguist who is involved in providing evidence, as an expert, for the defence and prosecution, in areas as diverse as blackmail, trademarks and warning labels. The Routledge Handbook of Forensic Linguistics includes a comprehensive introduction to the field written by the editors and a collection of thirty-seven original chapters written by the world’s leading academics and professionals, both established and up-and-coming, designed to equip a new generation of students and researchers to carry out forensic linguistic research and analysis. The Routledge Handbook of Forensic Linguistics is the ideal resource for undergraduates or postgraduates new to the area.

Consumo c(l)iente: abordagem do gênero anúncio publicitário em livros didáticos de língua portuguesa do ensino médio

Portuguese language textbooks, according to what has been preconized on the official document to education, have been configured on discursive genres imported from diverse spheres of human activity. Adverts, genre of ample social circulation, spread from the Advertising sphere to the schools and started being approached by these collectaneas as an object and a tool for teaching. Therefore, this research deals with the approach of ads in Portugese textbooks. These discursive practices matter for the impact or appeal they exert over the (new) consumers, among which High School students; for their representation in the capitalist system, which guides us on our relationships and social practices; and for the mix of languages that end up at their composition, once they encapsulate the spirit of our time, par excellence, the one from the verbal-visual genres. To understand the treatment given to these advertising pieces, from questions/commentaries related to them, two collections were selected by the Programa Nacional do Livro Didático – Textbook National Program (PNLD 2012) among the ones more used by public High Schools in Natal/RN. From Applied Linguistics, from mestizo, nomadic and inter/transdisciplinary identity (MOITA LOPES, 2009), this study falls within the discursive chain of the interpretive tradition of historical-cultural approach (FREITAS, 2010) and names the Bakhtin Circle and its language‟s dialogical conception as inescapable partners. The data of the colletaneas show that the genre approach can happen as concrete utterance, as linguistic artifact and as hybrid, at work with questions and without questions, with the predominance of its occurrence in the portion of the volume devoted to the study of grammar. In the literature chapters and production/interpretation of compositions, it insert is incipient or it doesn‟t happen in the volume. Such a provision has implications for multiliteracies (ROJO, 2012) of the citizen student, once the lack or the abundance of critical reading proposals for this genre, that demand from the student the exercise of knowledge that is necessary to the construction of linguistic and social meanings, can be responsible for guide to a more conscious consumerism (material and cultural) by the chief customers of the work under review. The approaches of the genres seems to indicate a gradual transition that such material have undergone, which means, from the focus on clauses to the focus on utterances, or even the approach as linguistic artifact to hybrid and the concrete utterance, in search of overcoming the traditional tendency of taking advantage of formal aspects of the language, to the detriment of enunciative ones, and for coming into harmony with the guidelines and parameters of teaching in contemporary times, bringing the school duties close to the rights in life.

Dialogização de vozes: o fio construtor do estilo de José Bezerra Gomes no romance A porta e o vento

This research aims to investigate the process of stylistic construction in novelistic prose of Northeastern Brazilian writter José Bezerra Gomes, taking as a corpus his novel called A porta e o vento. The theoretical foundations supporting this study are related to the ideas disseminated by a group of linguistic researchers known as Bakhtin Circle, especially the notions of dialogic language, literary word, concrete utterance, social voices, and sociological style/stylistic. Concerning to methodological guidance, this work is characterized by adopting the interpretive paradigm of socio-historical background, still situated in the great field of Applied Linguistics, an undisciplinary area of research and frontier whose primary focus is concrete and situated language. The analysis allowed me to hear several social voices embodied therein, realizing a variety of dialogs, numerous worldviews in constant struggle, that due to the management and the finish given by the author, eventually create a tone, a unique composition compared to other discourses and current styles in his midst. Ideological clashes are evident: the voice of tradition versus particular character Santos’ voice regarding the institution of marriage; confrontation between antagonistic hinterland pictures - a living hinterland (rich and diverse) as opposed to the stereotypical notion of hinterland (poor and sterile); and the door and the wind as a metaphor of a fighting arena and a hint of poeticization of the language of prose. The main feature of Bezerra’s style in A porta e o vento is related to the aforesaid modes dialogization voices present in the novel. Therefore, one can found veiled polemic, dialogical replicas and veiled dialogues, which are categories already discussed in Bakhtin's theory, but also other new modes dialogization, grounded in the dynamics of living and concrete language

A competência leitora de alunos do ensino fundamental: uma proposta de intervenção

Reading is a activity of paramount importance in the life of every human being, since this practice is essential condition for the exercise of citizenship. Therefore, it is through reading that the student has access to the knowledge that part of the world around him. However, given the complexity involved in the process of learning to read, teach students to read is not an easy task because often they do not acquire the skills necessary to understand the texts. According to this view, the present study focuses on an educational intervention who aim at contribut to the development of reading competence of students in 6th grade "U" of the State School Senador José Bernardo, in São João do Sabugi - RN. The activities which were of that intervention process were conducted in Portuguese Language classroom and developed through didactic sequences drawn from reading strategies, based on the genres tale and news, since students had serious problems with regard to reading comprehension. Given the importance of meeting the aforementioned difficulty, we seek to develop a proposal for interactive reading activities through genres as a language of social practices, whose goal aimed read to understand and make sense of texts. This intervention proposal falls under the Applied Linguistics and to perform it, were taken as a basis some theories focused on the notion of language as sociointerativa practice, such as studies of Bakhtin (2006, 2011), Bronckart (2012) and targeted contributions to the teaching of reading activity, including, Solé (1998), Oliveira (2010), Kleiman (2013), Leffa (1996, 1999), Silveira (2005). Discussions about genres followed the studies of Bakhtin (2011), Marcuschi (2008), as well as other theoretical; the didactic sequences were constructed from Bronckart (2012), Dolz; Noverraz; Schneuwly (2013) and, with regard to the teaching of Portuguese Language, the guidelines were adopted contained in PCN / LP (1998), as well as in Antunes (2003, 2009) and other authors. The results showed that students in the 6th grade increased their understanding capacity of the read texts, by implementing the didactic and pedagogical actions, thereby acquiring the reading competence they needed to keep learning.

Proposta de jogo químico como estratégia didática no ensino a distância abordando o conteúdo de estereoquímica

The educational games can act as a complementary tool in the teaching and learning as play an important role in the interaction of the student with knowledge, and encourage interrelationship between students and motivate them by the pursuit of knowledge. This research is intended to analyze the evidence of the students of distance education applied to semesters 2011.2 and 2012.2 for the purpose of to catalog the mistakes presented by the students, the contents of stereochemistry that attended the Chemistry of Life discipline. From the presented mistekes, develop an educational game, "walking the stereochemistry", addressing that content. The choice of stereochemistry content was due to the low number of found work in the literature, and for being one of organic chemistry content that generates learning difficulties, as it requires a mental visualization and manipulation of molecular structures, besides require observation and comparison ability by the students. The game was applied of Life Chemistry discipline of Nova Cruz Polo in semester 2013.2, with intention to verify the viability and applicability this tool for the development of motivation ability by the pursuit of knowledge by the students, as well as complement the didactical materials of the DE. Then, It was made available on the course page an opinion questionnaire to the participants of the game, as a way of to investigate the opinion their about the proposed strategy. To diagnose the contributions of the game on student learning, it was taken a comparative analysis of stereochemistry issues contained in didactic tests applied in 2013.2 semester students participating and not participating of the polo of Nova Cruz and was also compared with the tests applied at the poles of Extremoz, Currais Novos, Lajes and Caico. So the game can be considered an important resource to complement the teaching materials of distance education, because awoke the motivation for the search of knowledge and contributes to the learning of stereochemistry content.

Família e escola: memórias de letramento

The school has the social function of educating the individual, building knowledge, attitudes and values that make supportive, critical, ethical and participatory. It is understood, however, in this study, these functions will only be, in fact, met at school if the family engagement at school. As a result, the objective of this research is to rescue the stories of families literacies yesterday and today and their expectations forward to school literacy of children. Theoretically, this research is based on studies of literacy (STREET, 1984; KLEIMAN, 1995; TFOUNI, 1995; 2010; OLIVEIRA, 2008) and in research on family literacy (HEATH, 1982; 1983; DANTAS; MANYAK, 2010). Methodologically, it is a qualitative research which fall within the field of Applied Linguistics (MOITA LOPES, 2006), characterized as an approach of the kind interpretative (MAYRING, 2000; CRESWEL, 2010). It takes as research area Municipal School Councilman Jose Sotero - Igapó / Natal-RN, using data generation tools such as: interview, questionnaire, teaching sequence and conversation wheel, aiming to seek answers to the following questions: How important to recover the reading and writing practices of the parents? What are the relationships between the history of the parents and the reading practices prevalent in the family? Which way to articulate these two systems: family and school, giving new meaning to the literacy practices experienced in the family context and the implications of literacy in school literacy of children? From the analysis of the data generated is expected to understand the family-school binomial and its interference in the literacy process of the students.

Família e escola: memórias de letramento

The school has the social function of educating the individual, building knowledge, attitudes and values that make supportive, critical, ethical and participatory. It is understood, however, in this study, these functions will only be, in fact, met at school if the family engagement at school. As a result, the objective of this research is to rescue the stories of families literacies yesterday and today and their expectations forward to school literacy of children. Theoretically, this research is based on studies of literacy (STREET, 1984; KLEIMAN, 1995; TFOUNI, 1995; 2010; OLIVEIRA, 2008) and in research on family literacy (HEATH, 1982; 1983; DANTAS; MANYAK, 2010). Methodologically, it is a qualitative research which fall within the field of Applied Linguistics (MOITA LOPES, 2006), characterized as an approach of the kind interpretative (MAYRING, 2000; CRESWEL, 2010). It takes as research area Municipal School Councilman Jose Sotero - Igapó / Natal-RN, using data generation tools such as: interview, questionnaire, teaching sequence and conversation wheel, aiming to seek answers to the following questions: How important to recover the reading and writing practices of the parents? What are the relationships between the history of the parents and the reading practices prevalent in the family? Which way to articulate these two systems: family and school, giving new meaning to the literacy practices experienced in the family context and the implications of literacy in school literacy of children? From the analysis of the data generated is expected to understand the family-school binomial and its interference in the literacy process of the students.

Programa "Engajando famílias na escola": estratégias, possibilidades e desafios

Education and community are currently intertwined, so that social practices, situated problems and emancipation processes have, more and more, entered in the school environment. Considering this context, the expansion of studies focusing on family literacy becomes necessary for the mobilization of alternatives and actions in this area. This research forms part of the project "The habitus of study: builder of a new reality in metropolitan Natal" (CAPES/OBEDUC/UFRN) and the program "Literacies and public policies: the family at school" (MEC/PROEXT/UFRN). In view of the chosen object – family literacy – therefore, we try to: 1) discuss actions implemented in a family literacy program, with specific reference to create literacy resources to register, discuss material, events, texts, 2) actions and promote forms of interaction by the family in the school environment; 2develop bonding strategies between school and families; 3) point the impact of such experiences of family literacy. To achieve these objectives, we base the discussion on theoretical contributions of the New Literacy Studies (STREET, 1984; McLAREN, 1988; BARTON & HAMILTON, 1993; KLEIMAN, 1995, 2000), focusing on Family Literacy and Literacy Project issues. Regarding to the research paradigm, we consider the Applied Linguistics field of study and we take the qualitative model (ERICKSON, 1990; BORTONI-RICARDO, 2008), with ethnographic critical approach (MOITA LOPES, 1993; THOMAS, 1993; HEATH & STREET, 2008). We understand, through our analysis, that families have much to contribute to the reality of schools, and, having seen relevance and value, these collaborators participate and act in support of the actions and the student’s education, even in the midst of complex routine situations. Still, we have learned that dialogues and activities with the community are necessary, looking forward to having involvement, local knowledge and the construction of shared learning; following this path, the collaborative environment is produced and the collaboration is effective.

Programa "Engajando famílias na escola": estratégias, possibilidades e desafios

Education and community are currently intertwined, so that social practices, situated problems and emancipation processes have, more and more, entered in the school environment. Considering this context, the expansion of studies focusing on family literacy becomes necessary for the mobilization of alternatives and actions in this area. This research forms part of the project "The habitus of study: builder of a new reality in metropolitan Natal" (CAPES/OBEDUC/UFRN) and the program "Literacies and public policies: the family at school" (MEC/PROEXT/UFRN). In view of the chosen object – family literacy – therefore, we try to: 1) discuss actions implemented in a family literacy program, with specific reference to create literacy resources to register, discuss material, events, texts, 2) actions and promote forms of interaction by the family in the school environment; 2develop bonding strategies between school and families; 3) point the impact of such experiences of family literacy. To achieve these objectives, we base the discussion on theoretical contributions of the New Literacy Studies (STREET, 1984; McLAREN, 1988; BARTON & HAMILTON, 1993; KLEIMAN, 1995, 2000), focusing on Family Literacy and Literacy Project issues. Regarding to the research paradigm, we consider the Applied Linguistics field of study and we take the qualitative model (ERICKSON, 1990; BORTONI-RICARDO, 2008), with ethnographic critical approach (MOITA LOPES, 1993; THOMAS, 1993; HEATH & STREET, 2008). We understand, through our analysis, that families have much to contribute to the reality of schools, and, having seen relevance and value, these collaborators participate and act in support of the actions and the student’s education, even in the midst of complex routine situations. Still, we have learned that dialogues and activities with the community are necessary, looking forward to having involvement, local knowledge and the construction of shared learning; following this path, the collaborative environment is produced and the collaboration is effective.

Crenças e experiências de professores no PIBID de Língua Inglesa : interação e ressignificação?

There are diverse studies about beliefs in Applied Linguistics since 1970 or so (BARCELOS, 2004), especially beliefs about teaching and learning Foreign Languages. The research about beliefs and experiences of English language teachers, who take part in a program of teaching incentive (Pibid), and, therefore, are immersed in public schools for elementary education, is relevant, once the (ac)knowledgment of these beliefs related to their teaching and learning experiences allows these teachers to reflect about the aspects that involve their teaching practice and their role as teachers of English language. The present work aims to investigate the interaction of beliefs and experiences related to foreign language teaching and learning of teachers who are participants of Pibid, in the subproject of English Language at the Federal University of Uberlândia (UFU), in 2013. The objective is to identify the beliefs and experiences about teaching and learning that the pre-service teachers (PI), the coordinator teacher (PF) and the supervisor teachers (PS) of the program show and how their beliefs and experiences influence each other and can or cannot be redefined. This is a qualitative and interpretative master’s research, in which I analized one narrative of each PI, one interview of PF and another of each PS, and, also, two meetings – the first between the PF and the PIs, and the second between all the participants in the subproject. All the data was collected at the end of their participation in Pibid, approximately one year and six months later. Therefore, I raised some beliefs and experiences about English language teaching and learning present in the teachers’ discourse and analized excerpts in their speech that evidenced the interaction with other participants and its influence to the formation, confirmation, demystification and redefinition of their beliefs. The results of this analysis bring elements that may help the constant reflection of university teachers, teachers in practice and pre-service teachers about the aspects that involve the teaching experiences in public schools.

O conceito de motivação em dizeres de professores de língua inglesa

This work aimed at analyzing the speeches constructed about motivation by English teachers who teach at public state schools in the interior of Minas Gerais. We aimed at delineating the concept of subject underlying the subjects’ notion of motivation and identifying the role that the English teacher attributes to himself and to the student when he/she enunciates on motivational issues, problematizing the possible consequences of these issues for some English teachers while working in public schools. In order to do so, our investigation made use of theoretical assumptions from Applied Linguistics and Discourse Analysis. The theoretical fundamentation deriving from Bakhtin Circle as well as from Michel Pecheux’s theoretical basis were also very relevant for this research. The intersection of these studying fields entails a theoretical construction that considers the voices of those who live the social practice (MOITA LOPES, 2006), which allows one to see the subjects through their heterogeneity, fluidity and fragmentation. Moreover, it generates knowledge about language in its political, ideological, social and historical aspects. AREDA (SERRANI, 1998) was used as a theoretical and methodological framework for data collection. In our analysis, we considered the voices and the conditions of production that constitute 5 English teachers and, from some selected speeches extracted from their discursive production, some notions as intra and interdiscourse, discursive resonance, discursive memory, among others, can be seen interwoven. We hypothesize that the production of meaning deriving from these English teachers comes from a cleavage between the interdiscursivity about motivation and their position in relation to the English language. Some of these teachers’ discursive inscriptions were delineated as they follow: i) the silenced motivation, in which the teachers come up with several voices, repeating what that has already been said about motivation through silence by excess; also, through an inscription in a process of anomy, the English teachers silence motivation, as they come up with other sayings, in an anomic order, denying their identification with their mother tongue and culture because of a desire to learn the foreign language and culture; ii) the motivation in/from/ by others that resounds, in the way the teachers speak, a relation of alterity on what, in/from desire of other relations (colleagues, students, teaching materials, media, etc.), other forms and alternatives are established as a guarantee of students’ motivation; the teachers are also inscripted in in-service practice training as a space of educational development, because they imagine that the experience of the in-service practice alone, which excludes the educational instruction from the Languages course in which they graduated/were graduating at, taught them how to motivate the students; iii) the motivation as a will of power/knowledge, which means there seems to be teachers’ inscription in the relationship between power and knowledge (Foucault, 1996), disconsidering the conflicts that constitute the English classroom to say that there is a control of the English teaching and learning process and, as a result, they also sustain that they hold control over how to motivate; furthermore, the presence of a resonant voice, whose effect is given by an inscription on the (illusion of) completeness can be seen, because the English teachers believe that while motivating their students, this motivation will provide them with all the missing elements, which would mean that when they motivate students, they would be able to fulfill all the gaps in their learning process.

THE EFFECT OF PURPOSEFUL MATHEMATICS DISCOURSE IN THE CLASSROOM ON STUDENTS’ MATHEMATICS LANGUAGE IN THE CONTEXT OF PROBLEM SOLVING

This study examines how one secondary school teacher’s use of purposeful oral mathematics language impacted her students’ language use and overall communication in written solutions while working with word problems in a grade nine academic mathematics class. Mathematics is often described as a distinct language. As with all languages, students must develop a sense for oral language before developing social practices such as listening, respecting others ideas, and writing. Effective writing is often seen by students that have strong oral language skills. Classroom observations, teacher and student interviews, and collected student work served as evidence to demonstrate the nature of both the teacher’s and the students’ use of oral mathematical language in the classroom, as well as the effect the discourse and language use had on students’ individual written solutions while working on word problems. Inductive coding for themes revealed that the teacher’s purposeful use of oral mathematical language had a positive impact on students’ written solutions. The teacher’s development of a mathematical discourse community created a space for the students to explore mathematical language and concepts that facilitated a deeper level of conceptual understanding of the learned material. The teacher’s oral language appeared to transfer into students written work albeit not with the same complexity of use of the teacher’s oral expression of the mathematical register. Students that learn mathematical language and concepts better appear to have a growth mindset, feel they have ownership over their learning, use reorganizational strategies, and help develop a discourse community.

The Visual Representation of a Systematic Metaphor in a UK Media Text

Much has been written on the organizational power of metaphor in discourse, eg on metaphor ‘chains’ and ‘clusters’ of linguistic metaphor in discourse (Koller 2003, Cameron & Stelma 2004, Semino 2008) and the role of extended and systematic metaphor in organizing long stretches of language, even whole texts (Cameron et al 2009, Cameron & Maslen 2010, Deignan et al 2013, Semino et al 2013). However, at times, this work belies the intricacies of how a single metaphoric idea can impact on a text. The focus of this paper is a UK media article derived from a HM Treasury press release on alleviating poverty. The language of the article draws heavily on orientational (spatial) metaphors, particularly metaphors of movement around GOOD IS UP. Although GOOD IS UP can be considered a single metaphoric idea, the picture the reader builds up as they move line by line through this text is complex and multifaceted. I take the idea of “building up a picture” literally in order to investigate the schema of motion relating to GOOD IS UP. To do this, fifteen informants (Masters students at a London university), tutored in Cognitive Metaphor Theory, were asked to read the article and underline words and expressions they felt related to GOOD IS UP. The text was then read back to the informant with emphasis given to the words they had underlined, while they drew a pictorial representation of the article based on the meanings of these words, integrating their drawings into a single picture as they went along. I present examples of the drawings the informants produced. I propose that using Metaphor-led Discourse Analysis to produce visual material in this way offers useful insights into how metaphor contributes to meaning making at text level. It shows how a metaphoric idea, such as GOOD IS UP, provides the text producer with a rich and versatile meaning-making resource for constructing text; and gives a ‘mind-map’ of how certain aspects of a media text are decoded by the text receiver. It also offers a partial representation of the elusive, intermediate ‘deverbalized’ stage of translation (Lederer 1987), where the sense of the source text is held in the mind before it is transferred to the target language. References Cameron, L., R. Maslen, Z. Todd, J. Maule, P. Stratton & N. Stanley. 2009. ‘The discourse dynamic approach to metaphor and metaphor-led analysis’. Metaphor and Symbol, 24(2), 63-89. Cameron, L. & R. Maslen (eds). 2010. Metaphor Analysis: Research Practice in Applied Linguistics, Social Sciences and Humanities. London: Equinox. Cameron, L. & J. Stelma. 2004. ‘Metaphor Clusters in Discourse’. Journal of Applied Linguistics, 1(2), 107-136. Deignan, A., J. Littlemore & E. Semino. 2013. Figurative Language, Genre and Register. Cambridge: Cambridge University Press. Koller, V. 2003. ‘Metaphor Clusters, Metaphor Chains: Analyzing the Multifunctionality of Metaphor in Text’. metaphorik.de, 5, 115-134. Lederer, M. 1987. ‘La théorie interprétative de la traduction’ in Retour à La Traduction. Le Francais dans Le Monde. Semino, E. 2008. Metaphor in Discourse. Cambridge: Cambridge University Press. Semino, E., A. Deignan & J. Littlemore. 2013. ‘Metaphor, Genre, and Recontextualization’. Metaphor and Symbol. 28(1), 41-59.