bluuebunny/crossref_metadata_2025 huggingface dataset:
Thermochelin, a Hydroxamate Siderophore from Thermocrispum agreste DSM 44070
Authors: Heine Thomas , Mehnert Marika , Schwabe Rïngo , Tischler Dirk
Published: August 2017

Siderophores are produced by microorganisms in iron-deficient environments. They are classified by structure as hydroxamate, catecholate, carboxylate or mixed type siderophores. These differences are also reflected in the selectivity for other valuable elements than iron, which allows designating them as “metallophores”, and makes them of interest for several industrial and medical applications. Thus, it is essential to understand the biosynthesis of these molecules to increase the set of available metallophores that are stable and suited for the respective applications. The probable structure of the metallophore from T. agreste DSM 44070 was predicted by similarity search and gene annotation. An N-hydroxylating monooxygenase (NMO: TheA) of T. agreste DSM 44070 that catalyzes an initial step was synthesized and characterized in detail. The respective metallophore was synthesized, purified and studied. The structure prediction suggested a hydroxamate-type (Erythrochelin-like) metallophore that contains L-N5-hydroxyornithine. This precursor is synthesized by TheA. The siderophore designated as “Thermochelin” is produced, extracted and purified successfully. Complexation was confirmed by CAS-assay. In this study, we expanded the scope of siderophores and the knowledge towards their biosynthetic pathways. Thermochelin is the second siderophore, which was purified from a thermophilic organism, and TheA is the first NMO, which was characterized from an extremophile.
Investigation of a Bioflotation Interface with Infrared Spectroscopy
Authors: Firkala Tamas , Lederer Franziska L. , Pollmann Katrin , Rudolph Martin
Published: August 2017

In this paper we report an approach for the structural analysis of mineral-collector interfaces of (bio) flotation systems by means of attenuated total reflection Fourier-transform infrared spectroscopy (ATR FT-IR). The extraction of rare earth metals from electronic waste materials is an important challenge for the recycling industry. In a current project bacteriophage are used as biocollectors to develop a bioflotation model system for the separation of lanthanum phosphate doped with cerium and terbium (LaPO4:Ce3+,Tb3+) from mixed fluorescent phosphors. As an initial analytical concept fluorescence microscopy was successfully applied to investigate particles of spent fluorescent lamp powders and to visualize the bacteriophage on the surface of the waste material. However, due to the restrictions of this technique we are not able to identify the molecular interactions of the bacteriophage with the recycled material. ATR FT-IR was found to be an effective tool to detect the major coat protein of the bacteriophage biocollectors on the surface of the LaPO4:Ce3+,Tb3+ and sense their specific bonding interaction opening the gates for the high level chemical characterization of the interface.
X-Ray Diffraction of Iron Containing Samples: The Importance of a Suitable Configuration
Authors: Mos Yvonne M. , Vermeulen Arnold C. , Buisman Cees N.J. , Weijma Jan
Published: August 2017

X-ray diffraction (XRD) is a commonly used technology to identify crystalline phases. However, care must be taken with the combination of XRD configuration and sample. Copper (most commonly used radiation source) is a poor match with iron containing materials due to induced fluorescence. Magnetite and maghemite are analysed in different configurations using copper or cobalt radiation. Results show the effects of fluorescence repressing measures and the superiority of diffractograms obtained with cobalt radiation. Diffractograms obtained with copper radiation make incontestable phase identification often impossible. Cobalt radiation on the other hand yields high quality diffractograms, making phase identification straightforward.
Detoxification of Heap after Gold Leaching Using Biodegradation
Authors: Belykh M.P. , Petrov Sergey V. , Chikin Andrey Yu. , Voiloshnikov Grigoriy I. , Belkova Natalia L.
Published: August 2017

Bacteria which are adapted both to high content of toxic compounds and to the environments grow in autochthonous communities of gold heap leach (HL) wastes. In the following study of HL waste from a deposit in the Sakha (Yakutia) Republic (Russia) it was shown that microbial processes had a greater impact on the degradation of cyanides and of complex copper and nickel cyanides, respectively, compared to a chemical degradation. The diversity of bacterial communities growing under natural and model conditions was determined.
Bioremediation of Complex Pollutants from the Oil Industry Containing Cobalt and Molybdenum Catalysts
Authors: Miletić Srđan , Jednak Tanja , Avdalović Jelena , Beškoski Vladimir , Ilić Mila , Gojgić-Cvijović Gordana , Vrvić Miroslav M.
Published: August 2017

Bioremediation is the process of detoxification or elimination of pollutants using microorganisms with different metabolic capabilities. Biodegradation by natural populations of microorganisms is one of the primary mechanisms by which oil and other pollutants of hydrocarbon origin can be removed from the environment and it is also much cheaper than the other remediation technologies.In this study, we analyzed the samples of historical waste from the oil industry, which contained sand, organic materials, heavy fuel oil and catalysts used during the process of hydrodesulfurization (HDS) of oil. The aim was to examine the fate of cobalt and molybdenum, toxic heavy metals present in those catalysts. A consortium of microorganisms isolated from the complex pollutants from the oil industry was added to the samples. During the study, beside the transformation of cobalt and molybdenum forms, we also monitored the biodegradation process of the total petroleum hydrocarbons (TPH).
Examining the Effects of Typical Reagents for Sulfide Flotation on Bio-Oxidation Activity of Ferrous Iron Oxidizing Microorganisms
Authors: Jafari Mohammad , Shafaei Sied Ziaedin , Abdollahi Hadi , Gharabaghi Mahdi , Chehreh Chelgani Saeed , Ghassa Sina
Published: August 2017

Mineral separation by froth flotation is widely used around the world for the beneficiation of sulfide ores. Flotation products (typically concentrate) are subjected to metallurgical processes for metal extractions. Bioleaching as a metallurgical procedure indicated many advantages over other traditional techniques (pyro- and hydro-metallurgy). However, organic flotation reagent residuals on the surface of minerals are effective on biological activities of microorganisms. In this work, to extensively study these effects, typical sulfide flotation collectors (Sodium ethyl-xanthate, Potassium isopropyl-xanthate, Potassium isobutyl-xanthate, Potassium amyl-xanthate, and Dithiophosphate (Aero)), and frothers (pine oil (PO) and methyl isobutyl Carbinol (MIBC)) were used in the presence of various bacteria (Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans) to investigate their effects on bio-oxidation. The results of this investigation can be used to better understand the mechanisms of bio-activities when reagent residues are on the surface of flotation products and they will feed to the bioleaching process.
The Influence of Pyrite on Galvanic Assisted Bioleaching of Low Grade Chalcopyrite Ores
Authors: Wu Biao , Shang He , Wu Min Lin , Wen Jian Kang
Published: August 2017

The experiment focused on the effect of pyrite on the dissolution of the ore from Saindak copper mine in Pakistan. The MLA results showed that the ore mainly consisted of chalcopyrite, which was associated closely with pyrite. The bioleaching process and galvanic promotion experiments of pyrite on the copper extraction were investigated. The data revealed that copper recovery rate could be up to 97.8% after the bioleaching process by extreme thermophilic acidophilic organisms for 30 days at 65 OC. The temperature and redox potential were the controlled factors to recover copper from the Saindak mineral. The phylogenetic analyses of 16S rRNA gene fragments revealed that organisms related to Metallosphaera cuprina strain Ar-4 and Sulfolobus sp. HB59 were most dominant. Pyrite could accelerate the dissolution of chalcopyrite as one galvanic assistant substance, which would be strengthened by elevating the temperature or in the presence of microorganisms.
Scientific-theoretical research approach to practical theology in South Africa: A contemporary overview
Authors: Pieterse Hennie J.C.
Published: August 2017

In this article, I present a critical literature study of the theoretical approach of practical theologians in South Africa to our discipline, in honour of Yolanda Dreyer on her 60th birthday. Some of my colleagues’ approaches at the universities of Stellenbosch, Free State, Pretoria, Unisa and NWU (Potchefstroom campus) are discussed. All of them work with practical theological hermeneutics. The basic hermeneutic approach of Daniël Louw is widened with an integrated approach by Richard R. Osmer in which practical theology as a hermeneutic discipline also includes the empirical aspect which the action theory approach has contributed to the discussion. After discussing Louw’s basic hermeneutic approach, all the other colleagues who basically accepted Osmer’s approach in their publications are discussed. Important and new ground is being broken by contemporary colleagues, including research in public practical theology, without neglecting the focus on Christian congregations, and new work is being done at the grass roots level of African issues in our country.
Future changes in surface ozone over the Mediterranean basin in the framework of the Chemistry-Aerosol Mediterranean Experiment (ChArMEx)
Authors: Jaidan Nizar , El Amraoui Laaziz , Attié Jean-Luc , Ricaud Philippe , Dulac François
Published: August 2017

Abstract. In the framework of the Chemistry and Aerosol Mediterranean Experiment project (ChArMEx, http://charmex.lsce.ipsl.fr), we study the evolution of surface ozone (O3) over the Mediterranean Basin (MB) with a focus on summertime over the time period 2000–2100, using the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) outputs from 11 models. We consider three different periods (2000, 2030 and 2100) and the four Representative Concentration Pathways (RCP2.6, RCP4.5, RCP6.0 and RCP8.5) to study the changes in the future ozone trend and its budget. We use a statistical approach to compare and discuss the results of the models. We discuss the behavior of the models that simulate the surface O3 over the MB. The ensemble mean of ACCMIP models simulates very well the annual cycle of surface O3. Compared to measured summer surface O3 datasets, we found that most of the models overestimate surface O3 and underestimate its variability over the most recent period (1990–2010) when independent observations are available. Compared to the reference period (2000), we found a net decrease in the ensemble mean surface O3 over the MB in 2030 (2100) for 3 RCPs: −13 % (−36 %) for RCP2.6, −7 % (−22 %) for RCP4.5 and −11 % (−33 %) for RCP6.0. The surface O3 decrease over the MB for these scenarios is much more pronounced than the relative changes of the tropospheric ozone burden. This is mainly due to the reduction in O3 precursors and to the NOx-limited regime over the MB. For the RCP8.5, the ensemble mean surface O3 is almost constant over the MB from 2000 to 2100. We show how the future climate change and the increase in CH4 concentrations can offset the benefit of the reduction in emissions of O3 precursors over the MB.
Mixing layer height as an indicator for urban air quality?
Authors: Geiß Alexander , Wiegner Matthias , Bonn Boris , Schäfer Klaus , Forkel Renate , von Schneidemesser Erika , Münkel Christoph , Chan Ka Lok , Nothard Rainer
Published: August 2017

Abstract. The mixing layer height (MLH) is a measure for the vertical turbulent exchange within the boundary layer, which is one of the controlling factors for the dilution of pollutants emitted near the ground. Based on continuous MLH measurements with a Vaisala CL51 ceilometer and measurements from an air quality network, the relationship between MLH and near-surface pollutant concentrations has been investigated. In this context the uncertainty of the MLH retrievals and the representativeness of ground-based in situ measurements are crucial. We have investigated this topic by using data from the BAERLIN2014 campaign in Berlin, Germany, conducted from June to August 2014. To derive the MLH, three versions of the proprietary software BL-VIEW and a novel approach COBOLT were compared. It was found that the overall agreement is reasonable if mean diurnal cycles are considered. The main advantage of COBOLT is the continuous detection of the MLH with a temporal resolution of 10 min and a lower number of cases when the residual layer is misinterpreted as mixing layer. We have calculated correlations between MLH as derived from the different retrievals and concentrations of pollutants (PM10, O3 and NOx) for different locations in the metropolitan area of Berlin. It was found that the correlations with PM10 are quite different for different sites without showing a clear pattern, whereas the correlation with NOx seems to depend on the vicinity of emission sources in main roads. In the case of ozone as a secondary pollutant, a clear correlation was found. We conclude that the effects of the heterogeneity of the emission sources, chemical processing and mixing during transport exceed the differences due to different MLH retrievals. Moreover, it seems to be unrealistic to find correlations between MLH and near-surface pollutant concentrations representative for a city like Berlin (flat terrain), in particular when traffic emissions are dominant. Nevertheless it is worthwhile to use advanced MLH retrievals for ceilometer data, for example as input to dispersion models and for the validation of chemical transport models.
Overcoming barriers to reprogramming and differentiation in nonhuman primate induced pluripotent stem cells
Authors: Hemmi Jacob J. , Mishra Anuja , Hornsby Peter J.
Published: August 2017

Abstract. Induced pluripotent stem cells (iPS cells) generated by cellular reprogramming from nonhuman primates (NHPs) are of great significance for regenerative medicine and for comparative biology. Autologously derived stem cells would theoretically avoid any risk of rejection due to host–donor mismatch and may bypass the need for immune suppression post-transplant. In order for these possibilities to be realized, reprogramming methodologies that were initially developed mainly for human cells must be translated to NHPs. NHP studies have typically used pluripotent cells generated from young animals and thus risk overlooking complications that may arise from generating iPS cells from donors of other ages. When reprogramming is extended to a wide range of NHP species, available donors may be middle- or old-aged. Here we have pursued these questions by generating iPS cells from donors across the life span of the common marmoset (Callithrix jacchus) and then subjecting them to a directed neural differentiation protocol. The differentiation potential of different clonal cell lines was assessed using the quantitative polymerase chain reaction. The results show that cells derived from older donors often showed less neural marker induction. These deficits were rescued by a 24 h pretreatment of the cells with 0.5 % dimethyl sulfoxide. Another NHP that plays a key role in biological research is the chimpanzee (Pan troglodytes). iPS cells generated from the chimpanzee can be of great interest in comparative in vitro studies. We investigated if similar deficits in differentiation potential might arise in chimpanzee iPS cells reprogrammed using various technologies. The results show that, while some deficits were observed in iPS cell clones generated using three different technologies, there was no clear association with the vector used. These deficits in differentiation were also prevented by a 24 h pretreatment with 0.5 % dimethyl sulfoxide.
A Look at Some International Lithium Ion Battery Recycling
Initiatives
Authors: Mancha A.
Published: August 2017

Today the United States is heavily reliant on the lithium-ion battery as
most portable devices and electronics run on it. Current innovations are
also looking on how to maximize it on the grid and transportation. This
paper will look at three sovereign states and their current initiatives on
Li-ion battery recycling: US, European Union, and China. The term initiative
is used loosely as the information is not permanent in most policies or
plans. Li-ion battery recycling initiatives are crucial to look at because
used and wasted Li-ion batteries can disrupt public health and Li-ion
batteries are expected to be a factor for effective material supply for
future battery production especially in transportation, like the Tesla
Roadster.
Borges Reads Machado: A Translation of “A Cartomante” in Revista Multicolor De Los Sábados
Authors: Mendes de Souza Marcelo
Published: August 2017

Comparisons between Machado de Assis and Jorge Luis Borges share one commonality: they all fail to mention any direct relation between the two authors. This article discusses a translation of Machado's “A Cartomante,” published in Revista Multicolor de los Sábados, a literary magazine edited by Borges, as a direct link between them. It proceeds to analyze parallels between Machado's “A Cartomante” and Borges' “Eastman, el proveedor de iniquidades,” both published in the same space, to finally undertake a close reading of the translation. It concludes that both stories are literary metafictional narrative experiences with genre fiction, initially aimed at expanding reading publics of modernizing Latin America. A new light is thrown in the understanding of these two writers; namely Machado is here recast as part of Borges' ever-expanding canon.
The Intrusive “I” in Translations of Italian Librettos
Authors: Edo Miquel
Published: August 2017

The modern aesthetic-linguistic code that governs translations of Italian opera librettos is fundamentally rooted in Romanticism. This code clashes to some extent with the code governing the source texts, where Romantic guiding principles fuse over a solid Petrarchan and Arcadian substratum indebted to the Dolce Stil Novo poetry of the late Middle Ages. This substratum is eroded in many translations, principally through a reinforcement of the first person (“I”) at the expense of things (in general) and feelings and vital organs (in particular), which, in the original libretto, are endowed with the capacity to act as independent agents. Accompanying this different epistemic approach to reality and the individual are noteworthy discrepancies in the use of rhetorical devices, marked by: (a) a lesser propensity in translations for circumlocution, personification, and synecdoche; (b) a higher degree of flexibility in Italian in the use of ellipsis; and (c) variatio in original librettos in contrast to uniformity and parallelism in translations.
Organizações Regionais e Processos de Prevenção, Gestão e Resolução de Conflitos em África: Experiências da SADC, CEDEAO e IGAD
Authors: Zeca Emílio Jovando
Published: August 2017

O trabalho discute o papel das organizações regionais africanas – SADC, CEDEAO e IAGAD – nos processos de prevenção, gestão e resolução de conflitos internos. O estudo constata que em situações de conflitos intraestatais, as organizações regionais têm dificuldades de lidar com os casos, ao passo que nos interestatais, devido aos compromissos formais com a organização, é mais fácil usar os mecanismos de resolução pacífica de conflitos ou intervenções militares.
To Punish First and Reward Second: Values Determine How Reward and Punishment Affect Risk-Taking Behavior
Authors: Athota Vidya S. , O’Connor Peter J. , Roberts Richard D.
Published: August 2017

The current study investigated whether manipulating participants’ pre-exposure to reward and punishment affects the extent to which sensation seeking and values predict risk-taking behavior. Participants (n = 195) were randomly allocated to one of two conditions, defined by the order at which they were rewarded or punished for risk-taking behavior. Risk-taking behavior was measured in both conditions using the Balloon Analogue Risk Test, but it was set up such that participants in Group 1 were rewarded for risk-taking behavior before being punished, whereas participants in Group 2 were punished for risk-taking behavior before being rewarded. Participants also completed questionnaires designed to measure sensation seeking and the values of stimulation (the need for novelty and excitement) and hedonism (the need for sensuous pleasure). It was found that stimulation predicted risk-taking behavior in the reward-then-punishment condition, whereas hedonism predicted risk-taking behavior in the punishment-then-reward condition. Sensation seeking was found to be an indirect predictor of risk-taking behavior in both conditions. It is tentatively concluded that the extent to which participants’ risk-taking behavior is guided by their values (hedonism, stimulation) largely depends on their prior exposure to the order of contingent reward and punishment.
Lactation Cessation and the Realities of Martyrdom in The Passion of Saint Perpetua
Authors: Dova Stamatia
Published: August 2017

This article examines the significance of breastfeeding in the self-definition of Perpetua, author and protagonist of the Passio Perpetuae et Felicitatis. Through close readings of all relevant passages, this discussion intends to demonstrate that Perpetua’s desire to continue nursing her son in prison as well as her eventual resignation to lactation cessation exemplify her struggle to balance her roles as mother and martyr. By illustrating how motherhood foreshadows martyrdom in the Passio, this analysis also highlights the narrator’s thorough knowledge of the realities of breastfeeding as an argument that further supports female authorship.
Determinants of the Islamic Stock Markets Integration
Authors: Karim Bakri Abdul , Linn Jyiona Fam Jxiaw , Karim Zulkefly Abdul
Published: August 2017

This study examines the macroeconomic determinants of Islamic stock markets integration among 10 selected Islamic stock markets. Both pooled OLS and panel data regressions are used in this study over the period spanning from 2010 to 2014. Some of Islamic stock markets are less integrated thus there is opportunity to gain from international portfolio diversification. However, there are some Islamic stock markets are strongly integrated. The results from the Pooled OLS show that all variables are insignificant explaining the Islamic stock markets integration. From the panel estimation, the study revealed that only GDP growth differential and inflation differential are significant influencing the Islamic stock markets integration. The higher dispersion of GDP and inflation rate the more integrated the Islamic stock markets. The results of this study have significant implications on international investors (potential risks and returns of international diversification) and on policy makers (formulation of financial policies and financial liberalization).
Impact of Human Resource Strategies of the United States on China
Authors: Li Yun
Published: August 2017

A developed and mighty America has attracted world attention. At the same time, it Provokes our deep thought on the reason for its rapid development within 300 years into the world’s leading superpower, Outdistancing all other countries in politics, economy, military strength, and culture.After researching and Pondering, I conclude that American development in a large degree lies in its effective human resource strategies. Peace and development have become the two main topics in the Present world. We can borrow some experience from American development and gain some suggestions for the benefit of our own development into power. There are other hills whose stones are good for working jade.
Global Energy Transition: Redefining India’s Energy Roadmap
Authors: Pant Girijesh
Published: August 2017

The onset of transition and transformation in the global energy landscape is disrupting the prevailing energy order,defined by the hydrocarbons. The power dynamics unfolded by global environmental concerns (Paris Agreement)and smart technology is changing the geopolitics by shifting the strategic leverage between energy producers andconsumers at various levels: globally, regionally and within the national boundaries. In this strategic shift, the Asianconsumers are emerging as critical players both as promoters and spoilers of global energy transition. Since they arethe largest consumer of fossil fuel, their compliance with Paris Agreement is going to be vital in meeting the targetsand time line. Thus IEA has rightly observed, “Energy developments in India transform the international energysystem, and, in turn, India will be increasingly exposed to changes in international markets.”Clearly the Indian roadmap of energy transition is going to be influenced if not determined by its global commitmentto meet Intended Nationally Determined Contribution (INDC). The government therefore has all reasons to scale upits targets and execution. However in meeting the targets, it has to address the issue of energy poverty as well. Thusthe roadmap has to meet the convergence of minimizing carbon emission meeting the growing energy needs of thepoor. This calls for re defining the organizing principle of India’s energy policy. Besides ensuring supply security ataggregate level it demands meeting the objectives of energy justice. The transition thus involves not only hugefinancing (estimated to be 2.5 trillion dollar) and massive technological push but the compatible institutionalmechanism and effective system of governance also. Indian energy roadmap has to recalibrate global energyengagement beyond the search of hydrocarbons in consonance with the imperatives of energy transition defined byglobal and local context.
“O que vi da vida”: Discursos sobre si, celebridade e mídia
Authors: Silva Francisco Vieira da , Baracuhy Regina
Published: August 2017

Esse texto visa discutir o processo de constituição discursiva do sujeito celebridade, a partir da análise do discurso de depoimentos concedidos ao quadro “O que vi da vida” , do programa Fantástico. Diversos famosos participaram desse quadro e, como sugere o título, era necessário falar de si, dar o seu testemunho, dizer a verdade sobre si mesmo, produzir narrativas sobre si. Para tanto, tomamos como arcabouço teórico a Análise do Discurso de orientação francesa (AD) fundada por Michel Pêcheux e as teorizações de Michel Foucault a respeito do sujeito e da historicidade do mecanismo da confissão. Além disso, tomamos como mote para discussão o sucessivo afrouxamento dos limites entre a esfera pública e a esfera privada, o que, em certa medida, justifica a irrupção de discursos sobre a vida íntima na/pela mídia.
Perguntas de leitura: uma abordagem na perspectiva da interação
Authors: Di Raimo Luciana Cristina Ferreira , Petermann Rafael
Published: August 2017

O objetivo deste artigo é analisar uma proposta de trabalho com perguntas de leitura com base na perspectiva interacionista de leitura para alunos do Ensino Médio a fim de verificar se essas perguntas propiciam a interação leitor-texto-autor. Para tanto, apresentamos brevemente as diferentes concepções de leitura, suas características e críticas e uma reflexão acerca das perguntas de leitura como um recurso para avaliação e trabalho em sala de aula. Em seguida, descrevemos o procedimento metodológico de elaboração, sequenciação e aplicação de lista de perguntas a trinta e três alunos da primeira série do Ensino Médio de uma escola privada de Paranavaí no Paraná. Por fim, analisamos as respostas dadas por uma amostragem de cinco alunos para algumas perguntas do questionário aplicado. Os resultados obtidos na análise evidenciam que as perguntas presentes no questionário possibilitam o movimento de interação leitor-texto-autor, sendo que nas perguntas de resposta textual as respostas dos alunos podem variar, dependendo da interação texto-leitor; nas perguntas de resposta inferencial, notou-se que há maior dificuldade em inferir sentidos, o que torna as perguntas mais complexas e que o dado novo na resposta provém da interação das informações do texto com o conhecimento prévio do aluno (inferência); nas perguntas de resposta interpretativa, verificou-se que, embora demandem respostas mais subjetivas, ainda assim há exigência de que o aluno tenha compreendido o texto para que possa associá-lo com outros fatos/eventos da vida.
(Re)pensando o ensino-aprendizagem de línguas estrangeiras
Authors: Giraldello Ademir Paulo , Tedesco Anderson Luiz
Published: August 2017

A educação cumpre uma função social. Assim, em limiar de um século pragmático, dinâmico, volátil, a escola, bem como a docência, passa a ter novas exigências sociais. Nesse aspecto, para que os sujeitos tenham um concreto engajamento no mundo social, faz-se necessário não apenas o desenvolvimento de habilidades linguísticas na língua vernácula, todavia em uma língua estrangeira. Em vista disso, este trabalho concerniu ao esforço de investigação às principais contribuições de uma base epistemológica especializada a respeito das perspectivas do ensino-aprendizagem de línguas estrangeiras. Acerca da natureza metodológica do trabalho, a pesquisa foi exploratória quanto aos objetivos e de bibliografia em relação às fontes de informação, amparada pela técnica da documentação indireta, o principal procedimento de coleta de dados. Já com os dados, foram analisados qualitativamente numa perspectiva crítico-reflexiva, dos quais se obtiveram intrigantes implicações. Primeira, a relevância da aprendizagem, domínio, competência e empenho linguístico- -discursivos em uma língua estrangeira no limiar de uma era em que se intensificam as relações internacionais, o progresso tecno-científico, a globalização. Segunda, os fatores que (in)viabilizam o efetivo processo de ensino-aprendizagem de línguas estrangeiras. Destarte, inferindo, existem lacunas e paradigmas educacionais. Por conseguinte, o processo de ensino-aprendizagem de línguas estrangeiras está falho. Um dos primeiros passos à reversão deste panorama é compreender a língua como um fenômeno essencialmente oral, a heterogeneidade da discência, o protagonismo na aprendizagem. Enfim, ter a prática pedagógica consolidada na aplicabilidade, utilidade, significação real dos conteúdos e atividades para a aprendizagem discente, e, significativamente, no lúdico.
Que professores queremos formar? Uma análise do programa de pós-graduação em Estudos da Linguagem da UEL
Authors: Chanan Aline De Abreu Curunzi , Ferraz Mafra Núbio Delanne
Published: August 2017

Os estudos sobre formação de professores têm se ampliado consideravelmente nas últimas décadas e este fato se reflete nos programas de mestrado e doutorado. Este artigo tem como objetivo investigar a formação de professores de línguas portuguesa e estrangeira na pós-graduação em Estudos da Linguagem na Universidade Estadual de Londrina (UEL), no Paraná. Tomamos como referência a área de concentração em linguagem e educação, pois nela encontra-se o objeto a ser estudado. Através da análise dos programas das disciplinas constantes da grade curricular vigente em 2013, suas ementas, referências bibliográficas e do resumo dos grupos de pesquisa que interessam a este trabalho, buscamos compreender o impacto da abordagem adotada na formação de professores e pesquisadores. Os dados foram coletados diretamente do site oficial do programa. Esperamos que os dados, as análises e as interpretações contidos neste artigo possam colaborar com a discussão sobre produção de conhecimento na área de formação de professores.
Conceitos de sequência didática subjacentes a uma proposta de ensino de artigo de opinião pautada na prática de análise linguística
Authors: Gonsalves Larissa Gabrielle Lucena , Araújo Denise Lino de
Published: August 2017

O presente artigo tem como objetivo principal analisar uma sequência didática (SD) desenvolvida para o ensino de produção textual do gênero artigo de opinião para alunos do Ensino Fundamental II (9° ano), que adotou a prática de análise linguística como perspectiva metodológica de ensino. Assim, as aulas tinham como foco principal a prática de análise linguística no desenvolvimento da progressão temática textual das produções dos alunos. Para tanto, além de atividades de reescrita do gênero artigo de opinião (tanto coletiva quanto individual), também foram desenvolvidas atividades que abordaram a temática dos textos, bem como o encadeamento textual através do uso dos operadores argumentativos. Observamos como a sequência foi executada, que concepção de SD subjaz à sequência analisada e se, de fato, esse modelo segue as prescrições teóricas sobre esse assunto, relacionando as noções de SD e modelização didática de Dolz, Noverraz e Schneuwly (2004) com a sequência já desenvolvida e concretizada. Analisamos, dessa forma, se seguimos o modelo de SD de Genebra (Dolz, Noverraz e Schneuwly, 2004) e se houve adaptações, verificando se as atividades propostas pela SD favoreceram o ensino de um gênero argumentativo. Os resultados apontam mudanças em relação ao conceito tradicional de sequência didática apresentado pelo grupo de Genebra.
Impresso ou digital? As práticas de ler textos no papel e na tela
Authors: Silva Maria Da Guia
Published: August 2017

Neste artigo, apresentamos algumas declarações sobre as práticas de ler textos no papel e na tela sob a visão de graduandos do Bacharelado em Ciências e Tecnologia da Universidade Federal do Rio Grande do Norte (BCT/UFRN). Esses graduandos cursaram o componente curricular Práticas de Leitura e Escrita II (PLE-II), no primeiro semestre de 2011. Nele, pretendemos explorar, entre outros, a polêmica sobre o futuro do mercado editorial que passa pelos seguintes questionamentos: os livros impressos resistirão às novas tecnologias? Os e-books suplantarão os livros impressos? É possível a coexistência de livros impressos e livros digitais? Para tanto, no decorrer desse estudo, trazemos para análise o que dizem seis desses graduandos nas entrevistas semiestruturadas e nos artigos de opinião que eles produziram para contribuir com esse debate. Esse material selecionado para este estudo faz parte do corpus da pesquisa concluída com esses colaboradores. A análise desses dados seguirá os pressupostos teórico-metodológicos da concepção de língua(gem) de Bakhtin (2009), dos estudos de letramento como prática social (KLEIMAN, 1995, 2005; OLIVEIRA; KLEIMAN, 2008), dos estudos sobre o letramento digital (XAVIER, 2002; COSCARELLI; RIBEIRO, 2007). Os resultados da análise empreendida apontam-nos para uma multiplicidade de práticas de leitura/escrita de textos impressos e digitais desenvolvidas por graduandos do BCT devido à coexistência da modalidade impressa e da que decorre dos novos dispositivos móveis.
Os novos serviços na sociedade da informação: o caso do Uber na cidade de São Paulo
Authors: Martins Marcelo Guerra , Nascimento Marcelo Tadeu , Machado Ronny Max
Published: August 2017

O presente artigo tem como foco o serviço de transporte por meio da utilização do Uber, tecnologia típica da sociedade da informação, pautada pela utilização da internet e de equipamentos eletrônicos como tablets e smartphones. São abordados também os aspectos sociais, econômicos e jurídicos dessa novel tecnologia de transporte nas grandes cidades brasileiras, com ênfase na cidade de São Paulo, que regulou o uso do Uber em 2016. As conclusões enfatizam a compatibilidade do novo serviço com o sistema jurídico brasileiro, bem como as potenciais vantagens em relação ao transporte realizado pelos taxis tradicionais. A metodologia utilizada é o estudo bibliográfico com caráter qualitativo e indutivo.
Considerações sobre a cláusula de raio no direito brasileiro
Authors: Alves Alexandre Ferreira de Assumpção
Published: August 2017

O artigo analisa a cláusula de raio no direito brasileiro, apresentando seu conceito e discorrendo sobre a ausência de previsão de tratamento da matéria no ordenamento pátrio, sem se olvidar do disposto no artigo 54 da Lei nº 8.245/91, que afirma a prevalência da autonomia da vontade nos contratos de locação em shopping center. Em seguida, o trabalho expõe a forma como a matéria é tratada na doutrina, na jurisprudência e na visão do Conselho Administrativo de Defesa Econômica (CADE). Por fim, é realizado um estudo do caso Sindicato dos Lojistas de Porto Alegre x Shopping Iguatemi Porto Alegre e da cláusula de raio inserida unilateralmente pelo locador, com base nas decisões do Tribunal de Justiça do Estado do Rio Grande do Sul e do Superior Tribunal de Justiça com as conclusões dos autores sobre a decisão.
Atos de concentração econômica e estruturas de mercado em uma concorrência praticável
Authors: Rocha Jakson Lima , Lima Renata Albuquerque , Cordeiro Lívya Maria Vaz
Published: August 2017

O presente artigo trata dos atos de concentração econômica em um contexto de análise das estruturas de mercado e a forma como estas auxiliam nos estudos sobre as características da concorrência praticável. Baseando-se em uma exposição didática, os autores analisam o Sistema Brasileiro de Defesa da Concorrência, o Conselho Administrativo de Defesa Econômica e dispositivos legais que são essenciais para o assunto. Trata-se, também, das diferenças entre as concorrências perfeita e praticável, das estruturas de mercado, sob a ótica do mercado relevante, bem como das principais formas de concentração que ocorrem entre as empresas que exploram a economia.
Diálogos na criação: um estudo do mestiço brasileiro em “Reconhecimento de Nêmesis” e “Padre Jesuíno de Monte Carmelo”
Authors: Grillo Angela Teodoro
Published: August 2017

O presente artigo dedica-se, em uma primeira parte, ao estudo do processo de criação do poema “Reconhecimento de Nêmesis”, escrito em 1926 e publicado quinze anos mais tarde no livro Poesias. Trechos da correspondência ativa e passiva participam do arquivo da criação do poema e contribuem para a análise e interpretação dos versos. Na segunda parte, apresentamos um estudo comparativo de “Reconhecimento de Nêmesis” com Padre Jesuíno de Monte Carmelo, a aproximação das obras é possível sobretudo porque o escritor, vinte anos depois na biografia romanceada do pintor barroco, replica a principal imagem do poema, a “mão morena” que serve como metáfora de aspectos da psicologia do mestiço brasileiro. Contribuem ainda para este trabalho, o estudo de manuscritos de Mário de Andrade, salvaguardados em seu acervo no IEB-USP.
Da crítica genética à crítica de processo: uma linha de pesquisa em expansão
Authors: Salles Cecilia Almeida
Published: August 2017

O artigo apresenta o histórico das pesquisas de crítica genética, assim como são desenvolvidas no Programa de Pós-Graduação em Comunicação e Semiótica da PUC/SP. São discutidas a ampliação dos objetos de pesquisa e as adequações metodológicas, a partir de publicações e do desenvolvimento de uma grande diversidade de mestrados e doutorados. Por fim é proposto o conceito de criação como rede, gerado por tais pesquisas e seus diálogos com a experimentação contemporânea.
Representações, vulgarização e imagética científicas na imprensa da Corte Fluminense do século XIX
Authors: Silva Cesar Agenor Fernandes da
Published: August 2017

O presente trabalho tem por objetivo compreender as nuances e os contornos da vulgarização científica e seu papel no projeto civilizatório para o Brasil veiculado pela imprensa periódica, produzida no Rio de Janeiro na primeira metade do século XIX.As revistas da época foramferramentas importantes destas ações com objetivos civilizatórios, que anunciavam, quase sem exceções, em suas introduções, que seu objetivo era o de levar e espalhar as luzes entre os homens livres do país.Essas publicações foram importantes na formulação de um discurso acerca do Brasil, do brasileiro e de sua literatura que gradativamente foi sendo absorvido pela sociedade.
Analysis of Teacher Beliefs and Efficacy for Teaching Writing to Weak Learners
Authors: Tunku Mohtar Tunku Mohani , Singh Charanjit Kaur Swaran , Kepol Napisah , Ahmad Ahmad Zainuri Loap , Moneyam Sasigaran
Published: August 2017

The present study investigated the beliefs and efficacy of a teacher teaching English to students who were weak at the language. The objective of the study was mainly to investigate the beliefs and efficacy of the ESL teacher for teaching writing to weak learners. The research was a case study of the English Language teacher teaching Form Three class of students whose English proficiency was very low. An interview was conducted with the teacher to further probe the instructional strategies applied to enhance her beliefs and efficacy in her own capabilities to make learning happen in her classroom. Observations were made to investigate the teacher’s efficacy in teaching and the performance of the students specifically for writing. Results show the teacher’s beliefs of her students’ capabilities and their language needs helped shape the teacher’s instructional strategies. The teacher’s efficacy enabled her to decide to undertake the task of teaching writing to her students because she was confident in her ability. The teacher provided clues to the students to facilitate their learning. This kind of feedback from the teacher indirectly motivated them to learn. The teacher’s beliefs and efficacy contributed to her teaching practice and the instructional strategies that she used in turn enhanced her beliefs and efficacy. The study implicates that teacher’s beliefs and efficacy can assist the weak learners in improving their writing skills and also facilitate language learning.
Integration of Three CBI Models and WeChat Mobile Learning in Business English Teaching
Authors: Siqi Che
Published: August 2017

Content-Based Instruction (CBI) is considered effective not only in mastering language skills, but also in acquiring the content knowledge of business subjects. WeChat, a popular communicative and interactive platform, is acknowledged as a new instrument to improve verbal teaching proficiency and obtain relevant information. The integration of three major CBI models and WeChat Mobile Learning can form three applicable phases of Business English teaching, which is an innovative but challenging teaching approach for business English teaching.
The Role of Items Quantity Constraint to Control the Optimal Economic Order Quantity
Authors: Ghafour Karzan Mahdi
Published: August 2017

The obligation or the traditional question in inventory models is how much or how many of inventory items to order. In inventory control, the economic order quantity, EOQ is varies from model to another based on the variables and assumptions. This paper develops the EOQ using two deterministic inventory models (Purchases model and production model with shortage) of multi-items when the objective function is subjected to a constrained number of items quantities. The constraints are supposed to be active if the left-hand side does not satisfy the right-hand side condition. Thus, to achieve the new formula of multi-item EOQ in each of the two models with the constraint, Lagrange method have been used. Finally, to provide the proposed model a numerical example has been used.
Análisis de la relación entre apoyo social y lesiones en futbolistas federados
Authors: Gómez-Espejo Verónica , Álvarez Irma , Abenza Lucía , Olmedilla Aurelio
Published: August 2017

ResumenEl objetivo de este estudio fue determinar si había diferencias entre un grupo de futbolistas que han estado lesionados la temporada anterior y uno de futbolistas que no han estado lesionados en los niveles de apoyo social percibido por parte de los jugadores. La muestra estuvo formada por 219 jugadores sénior de fútbol (80.1 %) y fútbol sala (19.9 %) federados (de categorías primera, segunda, autonómica, preferente y categorías inferiores) a nivel regional. De ellos, 138 futbolistas formaron el grupo de aquellos que no sufrieron ninguna lesión deportiva durante la temporada anterior y 81 que sufrieron una o más lesiones. Las variables de estudio fueron el apoyo social percibido y las lesiones deportivas, evaluadas por la Escala Multidimensional de Apoyo Social Percibido de Landeta y Calvete (2002) y un instrumento ad hoc, respectivamente. Los resultados muestran que el grupo de futbolistas no lesionados, respecto al grupo de futbolistas lesionados, poseía niveles más altos de apoyo social en los tres ámbitos de éste (apoyo de los amigos M = 24.05 frente a M = 23.77; apoyo de la familia M = 24.71 frente a M = 24.19; y apoyo de otras personas relevantes M = 24.74 frente a M = 23.71), aunque dichas diferencias no fueron estadísticamente significativas (p = .708; p = .443; p = .143). No se puede afirmar que la provisión de apoyo social a los jugadores de fútbol sirva para prevenir las lesiones deportivas, aunque sí existen diferencias entre el grupo de lesionados y el grupo de no lesionados, pero éstas no han sido significativas. AbstractThe aim of this study was to determine if there were dif­ferences between a group of players who have been in­jured the previous season and one of players who have not been injured in the levels of social support perceived by the players. The sample consisted of 219 senior foot­ball players (80.1 %) and federated football (19.9 %) at the regional level. Of these, 138 football players formed the group of those who did not suffer any sport injury during the previous season and 81 who suffered one or more injuries. The study variables were perceived social support and sports injuries, assessed by the Multidimen­sional Scale of Social Perceived Support (Landeta y Cal­vete, 2002) and an ad hoc instrument, respectively. The results show that the group of players non-injured play­ers, compared to the group of injured players, had higher levels of social support in three areas of this (friends support M = 24.05 vs. M = 23.77; family support M = 24.71 vs. M = 24.19; and support from other relevant people M = 24.74 vs. M = 23.71), although these differences were not statistically significant (p = .708; p = .443; p = .143). We cannot say that the provision of social support for soccer players serve to prevent sports injuries, although there are differences between the group of injured and unin­jured group, but these have not been significant.
Sensoriamento remoto na perícia ambiental do Ministério Público do Estado do Piauí: estudo de caso
Authors: Aragão Faruk Morais , Araújo Francisco de Assis da Silva
Published: August 2017

Este artigo descreve alguns dos usos da detecção remota em forenses ambientais no Ministério Público do Piauí. O estudo do meio ambiente tem muito a ganhar com o uso de dados remotos obtidos principalmente por sensores de satélite. Para fazer uma boa análise de análise, é necessária precisão e confiabilidade nas fontes. Além disso, em muitos casos, os dados devem ter data conhecida. O Ministério Público é a instituição governamental responsável pela defesa dos coletivos e sociais. Hoje em dia, o principal desafio da instituição é responder as necessidades sociais crescentes na sociedade. O objetivo principal deste documento de trabalho é demonstrar como seu dever foi melhorado pelo uso de informações georeferentes e imagens de satélites. Os exemplos de exames aqui apresentados demonstraram que o uso de ferramentas de geoprocessamento aliadas a dados de detecção remota tem sido usado com sucesso em forenses ambientais.
Metaphor, Paradigm, and Education
Authors: Ivie Stanley D.
Published: August 2017

Metaphor is a critical tool for thought. Lying at the heart of every systematic body of knowledge are three root metaphors — mechanism, organism, and mind. Historically, schools of philosophy — realism, naturalism, and idealism — have grown up around these metaphors. The root metaphors and their corresponding philosophies provide the paradigms underlying different exemplars of education. To illustrate how metaphors, paradigms, and exemplars all shape educational thought, the works of three educators — Hunter, Piaget, and Bruner — have been selected.