bluuebunny/crossref_metadata_2025 huggingface dataset:
New markets for renewable industries: Developing countries – Turkey, its potential and policies
Authors: Kaya Durmus , Kilic Fatma Canka
Published: June 2019

For today’s world, energy is a huge requirement for economic, industrial and social life. The necessity of energy is increasing quite rapidly to keep pace with the technological and economical advancements and this brings about many energy problems like, dependence on energy importation, environmental pollution, global warming, increasing cost of energy expenses and inefficiency in energy use etc. Countries are working very hard to solve these problems. To supply the energy needs and protect our planet’s future safety, it is very important to generate clean energies. In this context, governments give huge amounts of incentives for renewable energy generations and support related investments in many countries. In this study, the importance of renewable energy usage, recent incentives, renewable energy policies in Turkey and some developed countries are investigated and compared. It is also aimed to examine the real situation of renewables in Turkey by giving the latest numbers and make a contribution of future developments for these clean energies in Turkey. In this regard, some barriers and recommendations are also submitted.
Production of biodiesel from chicken wastes by various alcohol-catalyst combinations
Authors: Lin Chia-Wei , Tsai Shuo-Wen
Published: June 2019

An environmentally friendly biorefinery process for producing biodiesel from chicken wastes was performed for this study. Low acid value (0.13±0.01 mg KOH/g) chicken oil was obtained by preparing chicken wastes with moderate heating and filtration processes that minimized damage to the lipids and thus facilitated subsequent reactions. Methanol-lipids in a molar ratio of 6:1 and a methanol-ethanol-lipids mixture in a molar ratio of 3:3:1 were both reacted with 1% KOH catalyst for transesterfication. Furthermore, ethanol-lipids in a molar ration of 6:1 were analogously transesterified with 1% sodium ethoxide. The amounts of biodiesel were 771.54 mg/mL±15.28, 722.98 mg/mL±37.38, and 714.86 mg/ mL±29.99 from methanol, eth-anol, and a mixture of methanol/ethanol (3:3), respectively, after transesterification. The total amount of ethyl ester was comparable with the total amount of methyl ester. In addition, ethanol is a renewable resource and a biorefinery concept can be contributed for biodiesel production. Further-more, transesterification of chicken oil with a mixture of methanol/ethanol (3:3) only needed a relatively short reaction time of an hour. Densities, viscosities, sulphur contents, acid values, and flash points of all esters were within the specifications of CNS 15072 and EN 14214. The transesterification system for chicken oil in ethanol and mixed methanol/ethanol (3:3) demonstrated in this study is a potential candidate for biodiesel production.
Optimization analysis of solar-powered average temperature Stirling heat engine
Authors: Bataineh Khaled M.
Published: June 2019

This paper investigates the performance of the solar powered dish-Stirling engine using the nonlinearized heat loss model of the solar dish collector and the irreversible cycle model of the Stirling engine. Finite time thermodynamic analysis is used to investigate the influence of the finite-rate heat transfer, operating temperatures, heat leak coefficient, and ratio of volume during regeneration processes, regenerator losses, thermal bridges losses on the maximum power output and the corresponding overall efficiency. The maximum overall system efficiency is 32% corresponding to absorber temperature and concentrating ratio of 850 K and 1300, respectively. The present analysis provides the basis for the design of a solar-powered mean temperature differential Stirling engine powered by solar dish system.
Decomposition analysis of energy-related CO2 emissions in South Africa
Authors: Zhang Ming , Dai Shuang , Song Yan
Published: June 2019

South Africa has become one of the most developing countries in the world, and its economic growth has occurred along with rising energy-related CO2 emission levels. A deeper understanding of the driving forces governing energy-related CO2 emissions is very important in formulating future policies. The LMDI (Log Mean Divisia Index) method is used to analyse the contribution of the factors which influence energy-related CO2 emissions in South Africa over the period 1993-2011. The main conclusions drawn from the present study may be summarized as follows: the energy intensity effect plays the dominant role in decreasing of CO2 emission, followed by fossil energy structure effect and renewable energy structure effect; the economic activity is a critical factor in the growth of energy-related CO2 emission in South Africa.
Assessing possible energy potential in a food and beverage industry: Application of IDA-ANN-DEA approach
Authors: Olanrewaju Oludolapo A, , Munda Josiah L. , Jimoh Adisa A.
Published: June 2019

In the food and beverage industry, where growing, processing, packaging, distribution, storage, preparation, serving and disposing of food is the order of the day; energy consumption becomes an important input. Various energy models have been developed since the early 1970s, the period when energy caught the attention of policymakers due to the sudden price increase. Among the models are the index decomposition analysis (IDA), artificial neural network (ANN) and data envelopment analysis (DEA). The purpose of this study is to combine the strengths of these models, i.e., IDA, ANN and DEA, to allow biases in one model to offset biases in the other, so as to examine the effectiveness of energy management policies in a particular food and beverage industry. The integrated model applied to the food and beverage revealed that approximately 11% of energy consumed could be saved.
Are solar tracking technologies feasible for domestic applications in rural tropical Africa?
Authors: Kanyarusoke Kant E. , Gryzagoridis Jasson , Oliver Graeme
Published: June 2019

That solar tracking improves energy yields from solar harvest systems is not debatable. Nor is the under powering of tropical Africa amidst plenty of energy resources – including solar. This paper presents a review of recent literature on tracking as applied to domestic solar harnessing devices. The purpose is to find basic requirements in design of a suitable solar tracker for the region’s rural homes. It is concluded that Single axis passive trackers possibly will stand better chances of acceptability in the region.
Performance optimization of an air source heat pump water heater using mathematical modelling
Authors: Tangwe Stephen , Simon Michael , Meyer Edson L. , Mwampheli Sampson , Makaka Golden
Published: June 2019

In South Africa, there is an ongoing constraint on the electricity supply at the national grid to meet the demand. Eskom is implementing various measures such as the Integrated Demand Management and the promotion and encouragement of the use of energy efficient devices like an Air Source Heat pump (ASHP) water heater to replace the high electrical energy consuming conventional geysers for sanitary hot water production. The ASHP water heater market is fast gaining maturity. A critical mathematical model can lead to performance optimization of the systems that will further result in the conservation of energy and significant reduction in global warming potential. The ASHP water heater comprises of an ASHP unit and a hot water storage tank. In this study, a data acquisition system (DAS) was designed and built which monitored the energy used by the geyser and the whole building, the temperature at the evaporator, condenser, tank outlet hot water, tank inlet cold water, the ambient temperature and relative humidity in the vicinity of the ASHP evaporator. It is also worthy to mention that the DAS also included to a flow meter and two additional temperature sensors that measured the volume of water heated and inlet and outlet water temperature of the ASHP. This work focused on using the mathematical equation for the Coefficient of Performance (COP) of an ideal Carnot’s heat pump (CHP) water heater to develop basic computation in M-file of MATLAB software in order to model the system based on two reservoir temperatures: evaporator temperatures (Tevp) of 0°C to 40°C (approximated to ambient temperature, Ta) and condenser temperatures (TCon) set at 50°C, 55°C and 60°C (approximated to the hot water set temperature of 50°C, 55°C and 60°C) respectively. Finally, an analytical comparison of a CHP water heater to the practical ASHP water heater was conducted on a hot water set point temperature of 55°C. From the modelling results, it can be deduced that at 0°C Tevp, the COP was 5.96 and 2.63 for CHP and ASHP water heater respectively, at a hot water set temperature of 55°C. Above 20°C Tevp, the rate of change of COP increased exponentially for the ideal CHP system, but was constant at 0.01/°C for the practically modelled ASHP water heater.
Developing Instruments to Measure Montessori Instructional Practices
Authors: Murray, PhD Angela K. , Chen Jie , Daoust Carolyn J.
Published: June 2019

Researchers who study any intervention must rule out potential alternative explanations for their results by establishing that the program being investigated is implemented with fidelity. Various instructional practices are attributed to the Montessori Method because the term is not legally protected, meaning any school can say it is Montessori regardless of the degree to which it adheres to practices generally understood to represent Montessori education. Researchers have used a variety of tools to measure the fidelity of Montessori environments they study, but most of these tools lack an extensive psychometric foundation or are labor intensive, requiring in-person observation. The purpose of this study was to examine the psychometric properties of instruments that were developed to measure Montessori implementation through Early Childhood (EC) and Elementary (EL) teachers’ reported instructional practices. Findings supported three hypothesized dimensions of Montessori implementation (structure, curriculum, and freedom), which worked fairly well in describing practices. While the properties of these instruments are promising and provide preliminary supporting evidence, results of this analysis suggest further refinement of the items in these instruments is necessary with larger and more diverse samples. While we do not suggest that these are finalized tools, we believe they provide a valuable starting point that is a vast improvement over the requirement of investigators to develop their own instruments as part of each Montessori study they design. The authors hope other researchers will incorporate these instruments into their studies to help build a robust body of evidence supporting their use.
Poly-d lysine coating slides v1
Authors: Burgin Grace
Published: June 2019

coating standard blank slides with poly-d lysine to increase adhesion of tissue
Extraction and purification of viruses from stream biofilms v2
Authors: Bekliz Meriem
Published: June 2019

This series of sequential protocols can be used to extract and purify viruses from stream biofilm samples for metagenomic analysis. We compared each critical step of the protocol to alternatives and evaluated their performance using epifluorescence counting of viral-like particles and DNA yields. The pipeline consists of concentration of sample using tangential flow filtration, extraction using tetrasodium pyrophosphate and sonication and purfication using DNase I treatment, filtration, and ultracentrifugation in a sucrose density gradient. Where appropriate, we provide links to similar protocols.
Extraction and purification of viruses from stream biofilms v3
Authors: Bekliz Meriem , Peter Hannes
Published: June 2019

This series of sequential protocols can be used to extract and purify viruses from stream biofilm samples for metagenomic analysis. We compared each critical step of the protocol to alternatives and evaluated their performance using epifluorescence counting of viral-like particles and DNA yields. The pipeline consists of concentration of sample using tangential flow filtration, extraction using tetrasodium pyrophosphate and sonication and purfication using DNase I treatment, filtration, and ultracentrifugation in a sucrose density gradient. Where appropriate, we provide links to similar protocols.
CGAP Human Spleen Dissociation, Tissue Stability Study v1
Authors: Wilbrey-Clark Anna , Hunter Adam
Published: June 2019

Mechanical dissociation of human spleen tissue to single cells for use in 10X chromium scRNA-Seq preparation.
sci-ATAC-seq HTAN v1
Authors: Adey Andrew , Fields Andrew , Th Casey , Mulqueen Ryan , Vitak Sarah , Juarez Eleonora
Published: June 2019

Single-cell combinatorial indexing ATAC-seq (Sci-ATAC-seq) workflow fro human cells/tissue. This protocol is the up-to-date Adey Lab protocol that incorporates the use of Pitstop2
Genome-wide SNP data unveil admixture of Chinese indigenous chicken breeds with commercial breeds v2
Authors: Nie Changsheng
Published: June 2019

In this study, we aimed to evaluate the genetic diversity and population structure of eight chicken breeds (including conserved chicken breeds) from different geographic origin and to identify admixture within these breeds using a 600-K SNP (single nucleotide polymorphism) panel for genotyping. Using the genotype of 580 961 single nucleotide polymorphism markers scored in 1 200 animals, we evaluated the genetic diversity (heterozygosity and proportion of polymorphic markers), linkage disequilibrium (LD) decay, population structure (principal component analysis and neighbor-joining tree), genetic differentiation (FST and genetic distance), and migration events (TreeMix and f-statistics) of the eight domesticated chicken breeds.
Cleaning up a biohazardous spill in a biosafety cabinet v1
Authors: W Wilhelm Steven , Lecleir Gary , A Humphrey Ashley
Published: June 2019

BIOLOGICAL SPILL RESPONSE method to be used in the event of a biosafety incident.
Cleaning up a biohazardous spill inside a centrifuge v1
Authors: W Wilhelm Steven , Lecleir Gary , A Humphrey Ashley
Published: June 2019

BIOLOGICAL SPILL RESPONSE method to be used in the event of a biosafety incident.
Gel Electrophoresis v1
Authors: Schackart Kenneth
Published: June 2019

How to prepare and run gel electrophoresis using agarose gel for the verification of nucleic acid amplification products.
Continuing Professional Development and teachers’ perceptions and practices - A tenable relationship
Authors: Utami IGA Lokita Purnamika , Prestridge Sarah , Saukah Ali , Hamied Fuad Abdul
Published: June 2019

Research on the impacts of Continuing Professional Development (CPD) on perceptions and practices has been conducted separately. This study attempts to investigate a relationship between the involvement of   CPD  and the alignment of teachers’ perceptions and practices about effective English teaching to draw a critical link between the relationship and the alignment. This study involved 6 teachers of English as a Second Language in Indonesia. Qualitative approaches of in-depth interviews and observations were the primary data collection tools. The findings indicate a partial relationship between CPD involvement and the alignment of teacher’s perceptions and practices. Specifically, as part of CPD, teacher’s professional enthusiasm is an indicator for a closer alignment in teacher’s perceptions and practices. Implications drawn from this study suggest that greater conscious raising is required to enhance teachers’ professional enthusiasm since it leads to an alignment between perceptions and practices of quality teaching.
Analysing literacy and other psychological tendencies using linguistic profile in English expressive writing: Are students able but unwilling to write?
Authors: Lee Bonita , Fitria Annisa , Ginting Henndy
Published: June 2019

The use of English in educational settings has become quite common in order to achieve global competitiveness. Given this fact, students are required to be fluent both in oral and written English. Unfortunately, the significant discrepancy is often found between the two. Students seemed to struggle when asked to elaborate their ideas in writing. With that in mind, this study would elaborate on the linguistic properties of students’ writings in order to understand the linguistic processes affecting such a discrepancy. Writings from a total of 205-business students were analysed using Linguistic Inquiry Word Count (LIWC2015) focusing on the linguistic and grammatical properties such as word counts, tenses associated words, adjectives, adverbs and so on. We found that our samples’ writing profile was significantly different from those of LIWC2015, especially in properties such word counts, six-letter words, verb and adjectives, as well as the use of I-related pronoun. For example, we found that our sample used a lot more difficult words while wrote less than half of the global population, suggesting their ability as well as unwillingness to write at the same time. With this main finding, we concluded that students come short in terms of critical literacy. In addition to that, we would also discuss the potential psychological implications (narcissistic tendency) as well as the differences between men and women styles in writing.
Development of an instrument to measure EFL teachers’ perceptions of reflective teaching
Authors: Moghaddam Rokhsareh Ghorbani
Published: June 2019

Given the importance of reflective practice in education, little research has been done to investigate how EFL teachers and EFL learners perceive reflective teaching. Since reflection calls for disclosing the underlying views, understandings, and beliefs behind actions on the part of teachers, it is expected that the teachers can provide some deeper insights into reflective teaching employed in their classroom (Richards & Lockhart, 1996). The study was undertaken in light of current psychometric thinking about how a new instrument should be validated. The aim of the current research was to construct and validate an instrument measuring EFL teachers’ perceptions of reflective teaching. Through inquiry in the review of the related literature and interview with EFL teachers and EFL learners, a reflective teaching perception questionnaire was constructed in a five-point Likert scale format. In order to establish the construct validity of the new questionnaire, it underwent factor analysis with a sample of 200 EFL teachers and 100 EFL learners. The piloting and testing of the tentative scale through exploratory and confirmatory data analyses reduced the instrument to an 8-factor model with 37 items. By means of Cronbach’s alpha, the reliability of the instrument was obtained to be 0.916. The results of factor analyses yielded the dimensions of technicality, criticality, inquiry, creativity, teacher’s characteristics, learner’s factors, advantages of reflective teaching, and obstacles to reflective teaching. The study provides some applications of this instrument in the context of language teaching as well.
Native-speakerism and professional teacher identity in L2 pronunciation learning
Authors: Alghazo Sharif , Zidan Mahmoud
Published: June 2019

Many studies in different contexts have examined both English as a second language (ESL) and English as a foreign language (EFL) students’ convictions about the connection between nativeness in English and professional teacher identity; however, very few studies solely focused on that connection in second language (L2) pronunciation teaching. This paper explores EFL university students’ experiences in learning English pronunciation from ‘native’- and ‘nonnative’- English-speaking teachers (NESTs and NNESTs). Based on an empirical study of undergraduates-prospective English language teachers-at the University of Jordan, the paper finds that most students still view ‘nativeness’ as the main descriptor of effective teaching, strongly believing NESTs to be the ‘authority’ and source of ‘correctness,’ both of which convictions are emblematic of native-speakerism, which in turns leads to both cultural panic and voicelessness on the part of NNESTs and learners. The study concludes with calling for the need to raise awareness among EFL students of the various manifestations of English as a global language-particularly the irrelevance of nativeness to effective teaching-and incorporating NNESTs into teaching L2 pronunciation and rejecting their marginalisation in teaching pronunciation in EFL contexts.
Implementing a multimodal online program for very young learners of Russian: Educators' perspective
Authors: Kayumova Albina , Sadykova Gulnara
Published: June 2019

CALL and MALL learning programs have been introduced by preschool teachers into their language classrooms (Sadykova, Kayumova, Khalitova, & Gimaletdinova, 2017; Segers & Verhoeven, 2003), despite reports saying that some of these programs have little educational value (Kazanci & Okan, 2009). This exploratory mixed-methods study aims at examining how Russian language kindergarten and preschool teachers integrate resources of a Russian language online school Live Fairytales™ (Zhivye skazki, 2017) and what design elements of this multimodal digital resource they find conducive or impediment to successful language acquisition by young learners. The data come from the reports of six teachers and survey responses of 18 educators who described and reflected on their experiences integrating resources of the Russian language online school. The data show that teachers made productive use of the digital resource by utilizing its multimodal presentation of the content, integrating interactive activities mostly in a whole-class format, and creating an engaging and enjoyable learning environment of play. Visual representation of material was reported to be the most valuable and necessary for accompanying audio input, introducing or practicing vocabulary, supporting listening comprehension, and overall motivating very young learners to stay on task. This study extends our understanding of what early childhood educators expect from quality digital resources and how they integrate them into educational programs that support language acquisition of bilingual and multilingual preschool children.
Metalinguistic evaluators and pragmatic strategies in selected hate-inducing speeches in Nigeria
Authors: Ononye Chuka Fred , Nwachukwu Nkechinyere Juliana
Published: June 2019

Hate-inducing language, which has become a recurrent decimal in Nigerian socio-political discourse, is not unconnected to the deep-seated boundaries existing amongst different ethnic groups in Nigeria. Linguistic studies on hate language in Nigeria have largely utilised pragmatic and critical discourse analytical tools in identifying the illocutions and ideologies involved but hardly paid attention to the metalinguistic forms deployed in hate speeches. Therefore, the present study, aside adding to the research line of the Natural Semantic Metalanguage (NSM)—which has unduly focused on language typology, explores the metalinguistic evaluators that index hate speech in Nigeria, and relate them to specific pragmatic strategies through which hate speech producers’ intentions are communicated. To achieve this, three full manuscripts of hate speech made by three groups (i.e. Arewa Youth Consultative Forum, Youths of Oduduwa Republic, and Biafra Nation Youth League) from three (northern, western, and eastern, respectively) regions of Nigeria are purposively sampled from Google directories and Radio Biafra archives, subjected to descriptive and quantitative analysis, with insights from the NSM theory and aspects of pragmatic acts. Two categories of metalinguistic evaluators were identified, positive (GOOD) and negative (BAD) evaluators; and these are associated with three pragmatic strategies; namely, blunt condemnation, unshielded exposition, and appeal to emotion. While the condemning and exposing strategies largely utilise negative evaluators in initiating hate on target groups, the emotion-drawing strategy largely employs positive evaluators in boosting the image of the hate-speech producing group in the eyes of the audience. With these findings, the study takes existing scholarship on violence-inducing language a step forward, especially in providing a pragmatic explanation to the proliferation of hate crimes in Nigeria. It also offers a holistic linguistic database and critical meta-language for the teaching of hate-related language and crime, especially in second-language situations.
Exploring process ‘verbs’ in EFL postgraduates’ citations: A Systemic Functional Linguistics approach
Authors: Jomaa Nayef Jomaa , Bidin Siti Jamilah
Published: June 2019

Due to their significance in establishing a research background, citations have been under focus by several researchers. However, limited studies have applied the Functional Theory in analysing reporting verbs in citations. Hence, this study identifies citations in the literature review chapters of 20 PhD theses in Information Technology and Applied Linguistics by EFL postgraduates within the ESL context. These PhD theses were selected purposefully. This study explores qualitatively the processes based on the ideational metafunction of the Systemic Functional Linguistics. The findings show that the material processes were used dominantly, followed by relational, verbal, and mental processes, whereas the behavioural  processes were less used. The use of processes ‘verbs’ is influenced by field and tenor as register variables. Thus, the findings imply that EFL postgraduates are unaware of using processes; therefore, they should receive discipline-specific instructions. Pedagogical textbooks for academic writing could be also developed based on the outputs of the present study.
Transitivity, paradigmatic choices, and thought presentation: A stylistic analysis of Joyce’s Eveline
Authors: Cunanan Bonifacio Tala
Published: June 2019

This paper shows how analyzing styles in fiction can be achieved in three ways: an in-depth examination of the role assignment of lexico-syntactic features, categorization of the choices in combining words, and examination of strategies in presenting characters’ perspectives. It offers ways on how to guide students in English as a second language (ESL) in analyzing and appreciating English fiction. It aims to equip them with language tools in evaluating a writer’s intended and desired aesthetic effects by using chosen linguistic features. To achieve this objective, this paper applies M.A.K. Halliday’s systemic-functional grammatical model illustrating how language works in Joyce’s Eveline, a short story. Specifically, this paper shows how EFL or ESL students can acquire a deeper appreciation of the worldview, perspective, or point of view of the author and his characters. Also, it illustrates how they may have a deeper appreciation of the craft, originality, and ingenuity of an author. Moreover, it demonstrates how using different techniques in speech and thought presentation could be made accessible by showing how rendering thoughts, feelings, and expressions can offer new perceptions and appreciations of what seems to be habitualized and ineffectual.
Humour Loss in the Indonesian Translation of Harry Potter and the Sorcerer's Stone
Authors: Yuliasri Issy , Allen Pamela
Published: June 2019

This article explores the preservation of humour in the Indonesian translation of Harry Potter and the Sorcerer’s Stone. Through the use of questionnaires completed by young readers aged 12-15 years old, we examine whether passages in the novel that are deemed humorous in the English original are also perceived as such by Indonesian readers. Our findings reveal the complexity of translating linguistic and culturally-specific humour in a novel. We conclude that the Indonesian translator of Harry Potter and the Sorcerer’s Stone adopted an interpretative-communicative method of translation. In doing so, some compromises were made, particularly, through simplification, which frequently resulted in humour loss.
The discursive portrayals of Indonesian Muslims and Islam in the American press: A corpus-assisted discourse analysis
Authors: Fajri Muchamad Sholakhuddin Al
Published: June 2019

Numerous studies across disciplines on how western media portray Muslims have been conducted in different geopolitical and cultural contexts. However, we still lack research into media constructions of Muslims from a particular country, including Indonesia, which is the most populous Muslim nation. This study aims to analyse the linguistic representation of Indonesian Muslims and Islam in two corpora of American newspapers published in two different five-year periods (2002-2006 and 2012-2016) by using corpus-assisted discourse analysis framework. Keyword, collocation and concordance analyses were employed to reveal dominant discourses of Indonesian Muslims. It was also enriched by critical discourse studies’ commitment to analysing social and political contexts. Some of the findings corroborate and reinforce the results of previous studies on media depictions of Muslims in general, in that the dominant discourses around Islam and Muslims are related to terrorism, fundamentalism, conflict and violence. However, this study also brings forward additional information, including a shift in the discourse. Dominant discourses around Indonesian Muslims in the American newspapers have witnessed a slight change over the 15 year-period from terrorism and extremism to radicalism only. What might be highlighted is that there are extremely few positive media portrayals of either Muslims in general or Indonesian Muslims.
What makes EFL speakers’ utterances more intelligible in the context of global intelligibility?
Authors: Moedjito M. , Jaelani Selamet Riadi , Asrobi Maman
Published: June 2019

In this globalisation era, native-like pronunciation has no longer become the goal of pronunciation teaching in EFL classrooms. Instead, intelligibility, more specifically, global intelligibility, has become a legitimate goal of pronunciation teaching (Moedjito, 2009). However, researchers and practitioners have not reached to the final conclusion of what makes EFL speakers’ utterances more intelligible. This paper is to report a study investigating factors which made EFL speakers’ utterances more intelligible in the context of global intelligibility. In order to achieve the goal, the present researchers used three instruments to collect data: a questionnaire, an in-depth interview, and an assessment of EFL speakers’ utterances from the in-depth interview. The quantitative data from the questionnaire and assessment of EFL speakers’ utterances were submitted to a Pearson’s Product Moment test to assess the correlation coefficient of each independent variable to intelligibility and to a multiple regression test to examine the predictive power of the independent variables to intelligibility as the dependent variable. Meanwhile, the data of the in-depth interview were qualitatively scrutinised. The results of the data analysis revealed that word pronunciation accuracy might become the most influencing factor which made EFL speakers’ utterances more intelligible. In addition to the accurate pronunciation, meaningful vocabulary might crucially account for intelligibility of EFL speakers’ utterances. These findings were positively confirmed by the results of the in-depth interview analysis. The major pedagogical implication of the study is that in English pronunciation classes, there should be more focus on word pronunciation accuracy in EFL classrooms.
Exploring EFL learner autonomy in the 2013 Curriculum implementation
Authors: Ramadhiyah Sa'adah , Lengkanawati Nenden Sri
Published: June 2019

In the Indonesian educational system, learner autonomy has been demanded to be promoted in the teaching and learning process of recent curriculum implementation. Unfortunately, it cannot be denied that learner autonomy still poses a challenge to be implemented in Indonesia since the teacher-centered learning is still dominant. Therefore, it is essential to explore both teacher’s and students’ perception of learner autonomy in one study. By employing a case study, this study used the interview, observation and questionnaire as the principal data collection methods to see in-depth the teacher’s and students’ perception of learner autonomy. An English teacher and thirty-six students from twelve grade of one senior high school in Indonesia were involved in eliciting their perceptions on learner autonomy and how the teacher’s efforts in promoting learner autonomy in the 2013 Curriculum . The findings showed that the teacher understood the basic features of learner autonomy as learners’ independent learning activity outside the classroom. This study also underlined that the teacher had had the initiative to promote learner autonomy in the 2013 Curriculum implementation by making some efforts. However, the teacher has not yet provided the learning process with a wide variety of authentic materials. It was found that the learners’ attitude toward those three perspectives on learner autonomy did not indicate the students to be autonomous learners because they were still accustomed to the teacher-centered learning environment.
The interplay between pronunciation self-efficacy sources and self-efficacy beliefs: A structural equation modeling approach
Authors: Shehzad Muhammad Waleed , Alghorbany Ali , Lashari Sana Anwar , Lashari Tahira Anwar , Razzaq Shazma
Published: June 2019

This study was conducted to find the association between pronunciation self-efficacy sources and pronunciation self-efficacy beliefs. It was quantitative in nature using a correlational research design. A sample of 155 Malaysian ESL university students was selected from two Malaysian universities by employing proportionate stratified random sampling. Two questionnaires were used to collect the data related to pronunciation self-efficacy sources and self-efficacy beliefs. In order to analyze the collected data, the correlational analysis was carried out with a statistical software named Smart PLS 3.0. Findings indicated that all the self-efficacy sources were significantly and positively correlated with pronunciation self-efficacy beliefs, except physiological state, which was significantly but negatively correlated with pronunciation self-efficacy beliefs. Based on the outcomes of this study, implications for ESL instructors and educational policymakers were presented.
Teaching English in the industry 4.0 and disruption era: Early lessons from the implementation of SMELT I 4.0 DE in a senior high lab school class
Authors: Suherdi Didi
Published: June 2019

Industrial revolutions always bring with them radical changes and, with various degrees, disruptive effects on the existing or ongoing technologies. In this conjunction, radical changes in doing education are now forthcoming, and some traditional ones are being disrupted. Many proposals are now being introduced to respond to the demands of the era. In relation to the teaching of English, the writer proposed a model, called SMELT I 4.0 DE, standing for a Synergetic Multilayered English Language Teaching for Industry 4.0 and Disruption Era. While the effects of each layer of the model (ICTC, SRLI, and TVCD) on students’ ELT learning have been extensively reported, those of the layers in a synergetic whole are not yet well-investigated. Hence, a study on the use of SMELT I 4.0 DE is theoretically motivating and practically enlightening. For the very reason, a one-semester pilot project implementing the model in an English as a foreign language (EFL) class in Universitas Pendidikan Indonesia Senior High Lab School has been conducted in the first semester of 2018/2019. This paper is intended to present findings from the aforementioned SMELT I 4.0 DE pilot project. The data were collected through questionnaires, interviews, document analysis, and observations from a class of 29 students. It is shown that ICTC has been successful in (1) increasing students motivation and engagement, (2) giving them positive experience in utilizing students digital devices for educational purposes, and (3) encouraging students creativity; SRLI has triggered students self-regulation in planning, doing, and assessing their learning, self-selection of learning focus and materials, and strategies; and TVCD has enhanced students learning through self-discipline, honesty, confidence, collaboration, communication, and hardworking. In conclusion, the implementation of SMELT I 4.0 DE has resulted in significant progress in all aspects of students’ learning under study.
Los principios rectores de política pública de acceso y equidad como dimensiones de red de política pública de las TIC en Colombia 2009-2018
Authors: Tabarquino Muñoz Raúl Andrés
Published: June 2019

El artículo aborda la política pública de regulación del servicio público de las tecnologías de la información y las comunicaciones (TIC) en Colombia en el periodo 2009-2018, centrándose en la dinámica y estructura de los principios rectores de política pública de acceso y equidad como dimensiones de red de política pública. La metodología es mixta, utilizando el enfoque del análisis de redes sociales (ANR) en cuanto a consolidación de actores y análisis de la estructura en red. Los resultados demuestran que el principio rector de acceso es de mayor relevancia para la estructura en red de la política pública de TIC en Colombia que el de equidad, sustentado en la relación sumamente desigual entre control de la infraestructura y los servicios.
Representaciones sobre la democracia, las instituciones y los actores gubernamentales en la Universidad de Antioquia
Authors: Hurtado Galeano Deicy Patricia , Bedoya Marulanda John Fredy , Mesa Betancur Xamara
Published: June 2019

El artículo presenta una caracterización de la cultura política a partir de un análisis de correlaciones entre las imágenes y representaciones que tienen los universitarios sobre el sistema social, sus acciones en el ámbito político y la imagen que poseen del sistema político. Toma como caso la Universidad de Antioquia y ofrece una aproximación a las percepciones de la democracia y las instituciones políticas de representación, de control y de participación en ella. A partir de una encuesta a una muestra representativa de estudiantes, profesores y empleados administrativos se concluye que, si bien hay una amplia aceptación de la democracia como idea general en términos normativos, este presupuesto se debilita cuando se pasa del plano valorativo a su materialización, es decir, los universitarios realizan una evaluación crítica del funcionamiento de la democracia colombiana. Adicionalmente, se pudo inferir que en este universo político coexisten dos matrices o constelaciones de cultura política: una que valora los procedimientos y mecanismos democráticos y otra que se muestra proclive a prescindir de elementos sustanciales para el funcionamiento de una democracia.
Adatok a Heves–Borsodi-sík flórájához I. Erdei, erdőssztyepp- és sztyeppfajok elterjedése
Authors: Schmotzer András
Published: June 2019

A cikkben a Heves–Borsodi-sík 5 kistájának területéről 159 taxon (158 faj és egy hibrid) 1999 és 2018 között feltérképezett elterjedési adatait közlöm. A tanulmány egy tematikus sorozat első ré­sze, mely az erdei, erdőssztyepp- és száraz gyepekhez köthető sztyeppfajok elterjedési mintázatát elem­zi, a florisztikai adatközlésen túl. A kiválasztott, magas indikációs tulajdonsággal bíró, nö­vény­föld­raj­zi szempontból is jelentős fajok esetében lehetséges észak-déli flóragradiensek értékelését is el­vé­gez­tem, kiemelten a Csörsz-árok és a 100 méteres izohipsza vonal tekintetében.
Zárt lösztölgyes maradványok a Mezőföldön (Pulmonario mollis-Quercetum roboris Kevey 2008)
Authors: Kevey Balázs , Horváth András , Lendvai Gábor
Published: June 2019

Jelen tanulmány a Magyarország középső részén levő Mezőföld zárt lösztölgyeseinek (Pulmonario mollis-Quercetum roboris) cönológiai elemzését tartalmazza 20 felvétel alapján. Az erdőtlen tájon ez az asszociáció igen szórványosan mutatkozik. Fragmentumai félszáraz–félüde termőhelyeken fordulnak elő, és átmenetet a száraz nyílt lösztölgyesek (Aceri tatarici-Quercetum pubescentis-ro­boris) és az üde talajú gyertyános-tölgyesek (Corydali cavae-Carpinetum) között. E zárt lösztölgyesek (Pul­monario mollis-Quercetum roboris) az alföldi lösztáblákon a homokvidékekről ismert – ugyancsak fél­szá­raz–félüde talajú – zárt homoki tölgyeseket (Convallario-Quercetum roboris) helyette­sítik. A sokvál­tozós elemzések (cluster-analízis, főkoordináta-analízis) révén a zárt (Pulmonario mollis-Quercetum robo­ris) és a nyílt (Aceri tatarici-Quercetum pubescentis-roboris) lösztölgyesek elkülönültek egymástól. A társu­lás felépítésében a száraz erdők (Quercetea pubescentis-petraeae, Quercetalia cerridis, Aceri tatarici-Quercion) és az üde erdők (Fagetalia) karakterfajai fontos szerepet játszanak. A száraz gyepek elemei (Festuco-Brometea, Festucetalia valesiacae, Festucion rupicolae stb.) ezzel szem­ben a nyílt lösztölgyesek­hez (Aceri tatarici-Quercetum pubescentis-roboris) képest erősen visszaszorul­nak. A flóraelemek között az európai és a szubmediterrán fajok a meghatározóak, míg a kontinentális elemek alárendeltebb sze­repet töltenek be, mint a nyílt lösztölgyesekben. A vizsgált zárt lösztöl­gyes (Pulmonario mollis-Quercetum robo­ris Kevey 2008) a Polygonato latifolio-Quercenion roboris Kevey 2008 alcsoportba (suballiance) sorolható.
Újabb adventív vízinövény Magyarországon: Limnobium laevigatum (Hydrocharitaceae)
Authors: Riezing Norbert
Published: June 2019

A szerző a Magyarországról korábban nem ismert amazonasi békatutaj (Limnobium laevigatum (Humb. & Bonpl. ex. Willd.) Heine) két lelőhelyét találta Tata-Naszály, illetve Dunaalmás kö­ze­lében, melegvizű források kifolyóiban. Ez a növény Közép- és Dél-Amerika trópusi és szubtrópusi te­rü­letein őshonos, ahol sokféle édesvízi élőhelyen megtalálható. Kedvelt akváriumi, illetve kerti tavi nö­vény, mely a kereskedelem révén vált „világpolgárrá”. Özönnövényként csak az ezredforduló óta tartják szá­mon. Behurcolták az Egyesült Államokba, Ausztráliába, Japánba, Indonéziába, Zambiába és Zim­bab­wé­be. Európából korábban csak egy kivadulását jelezték (Belgium). Könnyen terjed és igen gyorsan (iva­ro­san és vegetatív úton egyaránt) szaporodik. Megjelenése az Egyesült Államokban már komoly prob­lé­mát okoz. Tömeges megjelenésével kiszorítja az őshonos növényeket, elzárja a fényt a vízben élő állatok és növények elől, csökkenti a vízben az oldott oxigén mennyiségét, rongálja, illetve működésképtelenné te­szi a műszaki létesítményeket.
Prospects on Clouds of Quantum Machines (Perspectivas sobre Nuvens de Máquinas Quânticas)
Authors: Serpa Nilo
Published: June 2019

This theoretical work continues previous studies in Service-Oriented Architectures (SOA) on clouds of quantum computers, considering quantum entanglement and quantum teleportation of states of services as resources to deploy high production in IT environments and to guide studies on the implementation of intelligent behavior in server clouds. A way to preserve quantum entanglement is presented. Also, it proposes a metalanguage to organize the topology of orchestration of services. This topology is embedded in the states of services and takes part in the information to be teleported from server to server. The creation of entangled states of information with the aid of the concept of progenitor is reviewed with some details.

Key words: Cloud computing, quantum teleportation, quantum entanglement, tapestry, progenitor, SOA

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Esse trabalho teórico dá continuidade a estudos anteriores sobre Arquiteturas Orientadas a Serviço (SOA) em nuvens de computadores quânticos, considerando o emaranhamento quântico e o teletransporte quântico de estados de serviços como recursos para instaurar alta produtividade em ambientes de TI e fundamentar estudos sobre a implementação de comportamentos inteligentes em nuvens de servidores. Uma maneira de preservar o entrelaçamento quântico é apresentada. Além disso, propõe-se uma metalinguagem para organizar a topologia de orquestração dos serviços. Essa topologia é incorporada nos estados de serviços e participa das informações a serem teletransportadas de servidor para servidor. A criação de estados de informação entrelaçados com a ajuda do conceito de progenitor é revisada com alguns detalhes.

Palavras-chave: Computação em nuvem, teletransporte quântico, emaranhamento quântico, tapeçaria, progenitor, SOA
Hidrogênio, o combustível do futuro
Authors: Almeida Anderson Soares de , Souza Josefa Geane de , Madeiro Luiz Carlos Neto , Costa Marília Layse Alves da , Cunha Amanda Lima , Rodrigues Millena Araujo , Santos Aldenir Feitosa dos
Published: June 2019

Com a evolução dos recursos energéticos e a grande utilização dos combustíveis fósseis, a emissão de gases poluentes como o dióxido de carbono, cresceu gradativamente agravando o aquecimento global, causado serias preocupações com o futuro do planeta. O hidrogênio surge como um vetor energético que apresenta propriedades que o coloca como o combustível do futuro, numa possível substituição dos combustíveis fósseis. Dentre essas propriedades destaca-se o fato de não emitir gases poluentes na atmosfera, uma vez que em sua combustão há apenas a liberação de água e energia. O presente trabalho objetivou realizar um levantamento bibliográfico de artigos publicados entre 2013 e 2017 nas bases Scielo, Google Acadêmico e Periódico Capes, sofre as técnicas de produção de hidrogênio.  Entre os métodos de obtenção de hidrogênio destaca-se a eletrólise da água ou mesmo por métodos biológicos por espécies de bactérias fotossintetizantes, cianobactérias ou algas e métodos fermentativos. Pesquisas que envolvam os mais variados aspectos na implantação da economia de hidrogênio devem ser intensificadas para a maior viabilidade de suas tecnologias e possível introdução deste combustível nas matrizes energéticas do mundo.
A contribuição do gênero conto para a formação de leitores no processo da escrita
Authors: Oliveira Francielly da Silva , Freitas Inalda Maria Duarte de
Published: June 2019

Este artigo tem como objetivo apresentar as contribuições do gênero textual conto para a formação de leitores, bem como no processo de desenvolvimento da escrita. Visto que, esse gênero literário abre espaço para que os discentes deixem fluir o imaginário e despertem a curiosidade e possivelmente o senso crítico. Nessa perspectiva, os bolsistas do Programa Institucional de Bolsa de Iniciação à Docência (PIBID) do polo de Arapiraca, juntamente com um supervisor desse programa do município e a coordenação da escola consideraram a possibilidade de utilizar uma obra literária em sala aula, já que alunos estão na fase de transição da infância para a adolescência. E, devido a essas mudanças, leitura de obras como essa, podem ajudá-los a passar por essa fase, pois apresenta situações possíveis, ainda que fictícias. Além de auxiliar no processo de ensino, focalizando na ampliação de aprendizagem de Língua Portuguesa, desde a oralidade, quanto da argumentação, principalmente, leitura e escrita, promovendo uma interação necessária para que o desenvolvimento ocorra. Logo, como procedimento metodológico, inicialmente, foi feito um levantamento bibliográfico acerca desse gênero e posteriormente um projeto voltado a leitura e à produção textual, mais precisamente de contos, a partir das teorias estudadas. Para desenvolvimento desse trabalho, o projeto foi ancorado nas teorias de Carroll (2002), Marcuschi (2002), Bakhtin (1997), entre outros.