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31,291 Article Results

Occupational anxiety and self-efficacy levels among prospective teachers

10.11591/ijere.v8i1.18213
Şule Fırat Durdukoca , Tazegül Demir Atalay
This study examined the relationship between occupational anxiety and self-efficacy levels of prospective teachers enrolled in pedagogical formation training certificate program at the faculty of education in universities under the Council of Higher Education to teach in secondary schools and high schools in Turkey, and evaluated them based on diverse variables (gender, department, high school type, educational level of parents). It was a descriptive study using survey model. The study group comprised 236 prospective teachers. Research data were gathered through “Teaching Occupation Anxiety Scale” and “Teachers’ Sense of Efficacy Scale”. The study concluded that the prospective teachers’ anxiety about the teaching profession was low, whereas they had high occupational self-efficacy, and there was a moderate, negative relationship between the two variables. The study also found that occupational self-efficacy levels of the participants differed in relation to the educational level of father.
Volume: 8
Issue: 1
Page: 173-180
Publish at: 2019-03-01

Health status and physical activity among academic and non academic staffs in higher education

10.11591/ijere.v8i1.17738
Nurul Qomariyah , Sitti Nur Djannah
Being physically active is reducing the risk of non-communicable diseases. A cross sectional mixed method study was conducted to analyze health status and explore supporting and inhibiting factors of physical activity among academic and non academic staff in higher education. A total of 83 respondents were met the inclusion and exclusion criteria. The majority of UAD staffs are physically active and overweight. No significant health problems are found. Individual, social and environmental factors are identified as factors that can support and inhibit physical activity. Policies at the Faculty and University level are needed as well as cross-sectoral collaboration with related parties to support physical activities in UAD.
Volume: 8
Issue: 1
Page: 97-102
Publish at: 2019-03-01

An anfis converter control approach of grid connected wind/PV/battery system

10.11591/ijra.v8i1.pp6-17
R. Arulmurugan , Swapna Sandaraju
The major objective of this task is a control technique for power flow management of a network associated hybrid PV-wind-battery based system with multi-input transformer coupled bidirectional DC-DC converter using ANFIS controller is introduced. The proposed system intends to fulfill the demand of load, deal with the power flow from the distinctive sources, injects surplus power into the network and charge the battery from framework as and when required. A transformer coupled boost half-bridge converter is used to tackle power from wind, while bidirectional buck-boost converter is used to outfit control from PV alongside battery charging/releasing control. A single stage full-bridge bidirectional converter is used for ac loads and collaboration with grid. The proposed converter has reduced number of intensity change stages. This enhances the effectiveness and unwavering quality of the framework. In this article Adaptive Neuro Fuzzy interference System (ANFIS) is proposed for better performance of the system. Neural system has many inputs and also has multiple outputs but the fuzzy logic has multiple inputs and single output, so the combination of this two is known as ANFIS which is utilized for nonlinear applications. The proposed paper of simulation results acquired using MATLAB/Simulink demonstrate the execution of the proposed control procedure for power stream the executives under different methods of activity.
Volume: 8
Issue: 1
Page: 6-17
Publish at: 2019-03-01

The influence of proficiency level on the use and choice of L1/L2 communication strategies used by Iraqi EFL students

10.11591/ijere.v8i1.15179
Raed Latif Ugla , Mohamad Jafre Zainol Abidin , Mohammed Najim Abdullah
This study aimed at investigating the influence of language proficiency level on the frequency of the use and choice of L1/L2 communication strategies used by Iraqi EFL students. This study was qualitative in nature. The interactive task and speaking task were used to gather data regarding communication strategy use and choice from 52 second and third year English major students. Those participants were divided into two groups; low and high proficient students (n=27 low proficient students and n=25 high proficient students). A taxonomy of communication strategies was adopted to code the communication strategies used by low and high proficient Iraqi EFL students. The results revealed that low proficient students use communication strategies more frequently than high proficient students. Both low and high proficient students used communication strategies other than those included in selected taxonomy. This study showed that low proficient students use L1-based strategies more frequently, while high proficient students use L2-based strategies more frequently.
Volume: 8
Issue: 1
Page: 127-137
Publish at: 2019-03-01

Figure of community support in achieving Muhammadiyah school autonomy progress

10.11591/ijere.v8i1.15093
Mohamad Joko Susilo , Badrun Kartowagiran , Dwi Sulisworo
School autonomy can not be separated from support factor. This study aimed to determine source and form of community support and contribution in realizing autonomous in Muhammadiyah schools. This research development is part of dissertation conducted with five stages: define, design, model development, model validation, and model use. The study was conducted at SMP Muhammadiyah, Sleman Regency, with 280 respondents; consist of principals, teachers, staff, students, and ministerial assemblies of Dikdasmen. Data collection technique used: interviews, questionnaires, and documentation. Data analysis techniques use quantitative inferential analysis, EFA and CFA techniques. The results showed that form and source of support for Muhammadiyah schools is internal as well as external. School support also comes from internal and external support, such as: committee, parents, stakeholders, foundation, education official, collages, and related institutions. Directly and indirectly effect, contribution of school supporting component (Bac) to be school autonomous (Kms) up to 0.30.
Volume: 8
Issue: 1
Page: 20-28
Publish at: 2019-03-01

PD-computed torque control for an autonomous airship

10.11591/ijra.v8i1.pp44-51
Y. Meddahi , K. Zemalache Meguenni
For the trajectory following problem of an airship, the standard computed torque control law is shown to be robust with respect to unknown dynamics by judiciously choosing the feedback gains and the estimates of the nonlinear dynamics. In the first part of this paper, kinematics and dynamics modeling of the airships is presented. Euler angles and parameters are used in the formulation of this model and the technique of Computed Torque control is introduced. In the second part of the paper, we develop a methodology of control that allows the airship to accomplish a prospecting mission of an environment, as the follow-up of a trajectory by the simulation who results show that Computed Torque control method is suitable for airships.
Volume: 8
Issue: 1
Page: 44-51
Publish at: 2019-03-01

Vocabulary size, reading motivation, reading attitudes and reading comprehension performance among Filipino college learners of english

10.11591/ijere.v8i1.15335
Rosalyn Gunobgunob-Mirasol
Reading is an indispensable tool in the academic world. Most, if not all, activities in varied collegiate courses entail the act of reading. There are many contributing factors that affect one’s ability to read and comprehend text materials effectively. Two of the many factors are the reader’s vocabulary size and their reading motivation. This study examined the relationship of the vocabulary size, reading strategies and the reading comprehension performance of college learners in a comprehensive university in the Philippines. A correlational analysis was employed to ascertain the relationship between the scores in the reading comprehension component of the course and the vocabulary levels tests by Nation [1]. The findings of this study hope to provide useful insights into the prediction of college learners’ reading performance and the teaching of vocabulary in the ESL context as well as the integration of learners’ reading motivation in the curriculum.
Volume: 8
Issue: 1
Page: 64-70
Publish at: 2019-03-01

Organizational justice and cynicism: a mixed method study at schools

10.11591/ijere.v8i1.18296
Hüseyin Akar , O. Tayyar Çelik
This study aimed to investigate the relationship between organizational justice and cynicism at school organizations. Thus, explanatory sequential research design, in which both qualitative and quantitative methods are used, has been used. Under the quantitative part, meta-analysis has been used so that 159 studies consist of articles and dissertations about cynicism being done within Turkey have been reached throughout literature. With further enquiries, it was found that 16 of them include the relationship between organizational justice and cynicism. Considering inclusion criteria, eight studies which include necessary data for the relationship between organizational justice and cynicism were put into meta-analysis step. However, in the qualitative part, the research was designed through phenomenological research design in which 17 teachers, chosen in terms of maximum-variation sampling strategy, were interviewed via a semi-structured interviewing form. The results revealed that teachers' perceptions for organization justice have a strong but negative effect on their likelihood to experience cynicism while it was also found that publication type is not a proper moderator on effect size. On the other hand, within the qualitative analysis, it was found that teachers develop negative beliefs against school, managers and teachers; experience feelings such as anger, distrust, sadness, hatred and alienation and thus criticize school and managers, behave recklessly and opponent as a result of unfair practices.
Volume: 8
Issue: 1
Page: 189-200
Publish at: 2019-03-01

Effectiveness of experiential learning-based teaching material in Mathematics

10.11591/ijere.v8i1.15903
Mutmainah Mutmainah , Rukayah Rukayah , Mintasih Indriayu
This research was aimed at finding out the effectiveness of experiential learning-based teaching material in Mathematics on the Mathematics cognitive ability of the fifth-grade student in elementary school. This research used quasi-experimental design involving two sample groups: experiment and control group. The sampling technique in this research used simple random sampling. The subject of this research was 54 students from the fifth-grade elementary school in Gunungpati Sub-district in the academic year 2017/2018. This study involved 28 students of the fifth-grade elementary school Nongkosawit 02 as the experimental group and 26 students of the fifth-grade elementary school Sadeng 03 as the control group. The instrument used in this research was multiple choice test consisting of 30 questions. The test was used to obtain pretest and posttest score.The data analysis in this research used T-independent test to examine the hypothesis. The result of the study shows the significance level of 0.000 is less than α = 0.05 which means that there is different cognitive ability between the experimental and control group. Thus, the use of experiential learning-based teaching material in Mathematics is effective to improve the Mathematics cognitive ability of the fifth-grade student in elementary school.
Volume: 8
Issue: 1
Page: 57-63
Publish at: 2019-03-01

An english-language teaching plan for children in the internet of things environment

10.11591/ijeecs.v13.i3.pp927-932
Mohammad Moradi , Kheirollah Rahsepar Fard
An important topic that need to investigate is teaching of English language. In most educational methods, a series of pre-defined and fixed subjects are used for all individuals. There is also less attention paid to modern methods in education of English language. In this paper we present an application as a modern method in education of English language. In the proposed algorithm that is in the internet of things environment, has paid attention to teaching of English language, includes the use of objects, images, pronunciation, the use of vocabulary in sentences and texts, the relevance of content with the age and culture of the child, and the relevance of the content of the courses and exercises with the amount of learning each child.
Volume: 13
Issue: 3
Page: 927-932
Publish at: 2019-03-01

Creating and utilizing spaces to enhance intergenerational learning at schools and results

10.11591/ijere.v8i1.15914
Soner Polat , Yıldız Okçu , Çağlar Çelik
The purpose of the study was to explore the requirements of schools to increase intergenerational learning, collaboration and solidarity amongst the Baby Boomers, X and Y generations, based on the views of school principals. The research focused on how to create spaces for interaction among different generations and what consequences will arise when intergenerational spaces are created. This study was conducted with phenomenological research design. The study group consisted of 12 school principals who were identified with the maximum diversity sampling technique from Kocaeli Province, Dilovasi District. Criteria used in the selection of school principals were to work as managers in different schools and in different school types. The data were collected with a semi-structured interview form and the content analysis method was used. Interview questions were determined by researchers in the direction of research questions. Creation of intergenerational space is the main topic of this study whereas subtopics are scope and opportunities. On the other hand, findings collected indicate that principals mention intramural and out of school events about the creation of intergenerational space. These events are met under the titles of sports, art, entertainments and educational space. Finally, the results of creating spaces were examined in the study.
Volume: 8
Issue: 1
Page: 1-8
Publish at: 2019-03-01

Current sensorless vector controlled induction motor drive

10.11591/ijra.v8i1.pp52-67
Vimlesh Verma
This paper presents a current sensorless vector controlled induction motor drive with only speed sensor present in the system. The same performance as that of normal vector control drives (which uses two current and one speed sensor) is achieved with the proposed current sensorless drive. Such an approach is suitable for applications, where speed sensor cannot be eliminated. Thus, elimination of current sensor results in reduction of cost, increases reliability, reduced size and noise immunity. A new current estimation algorithm is proposed in this paper. The current estimation algorithm, estimates the current in two phase stationary reference frame. The proposed current estimation technique can also be used as a fault tolerant algorithm for normal vector controlled drives in case of current sensor failures. The performance of the current sensorless drive using the proposed current estimation technique is verified through MATLAB/SIMULINK. Extensive simulation results are presented to confirm the effectiveness of the algorithm. The algorithm is also experimentally validated with the laboratory developed prototype and the results are presented. The prototype is built around a dSPACE 1104 controller board.
Volume: 8
Issue: 1
Page: 52-67
Publish at: 2019-03-01

Internet of things (IoT) based I-V curve tracer for photovoltaic monitoring systems

10.11591/ijeecs.v13.i3.pp1022-1030
H. B. Chi , M. F. N. Tajuddin , N. H. Ghazali , A. Azmi , M. U. Maaz
This paper presents a low-cost PV current-voltage or I-V curve tracer that has the Internet of Things (IoT) capability. Single ended primary inductance converter (SEPIC) is used to develop the I-V tracer, which is able to cope with rapidly changing irradiation conditions. The I-V tracer control software also has the ability to automatically adapt to the varying irradiation conditions. The performance of the I-V curve tracer is evaluated and verified using simulation and experimental tests.
Volume: 13
Issue: 3
Page: 1022-1030
Publish at: 2019-03-01

Determination of pre-service science teachers’ attitudes towards reading science texts

10.11591/ijere.v8i1.16856
Şendil Can , Gülperi Öztürk
The purpose of the current study is to determine the effects of the variables such as gender, grade level, grade point average and book reading frequency on pre-service science teachers’ attitudes towards science texts. The sampling of the current study is comprised of 103 pre-service science teachers enrolled at the Education Faculty of Muğla Sıtkı Koçman University in the spring term of 2017-2018 academic year. In the current study, in order to determine the pre-service teachers’ attitudes towards reading science texts, “The Scale of Attitudes towards Reading Science Texts” was used. The effects of gender and grade level on the pre-service science teachers’ attitudes towards reading science texts were analyzed with independent samples t-test and the effects of academic achievement and book reading frequency were analyzed with one-way variance analysis (ANOVA). As a result of the study, it was concluded that the gender and grade level variables have significant effects on the pre-service teachers’ attitudes towards reading science texts in the sub-dimensions of making use of science texts when possible, denial and contribution of reading science texts to learning and skills and that the general grade point average and book reading frequency have significant effects on the pre-service teachers’ attitudes towards reading science texts in the sub-dimension of making use of science texts when possible.
Volume: 8
Issue: 1
Page: 181-188
Publish at: 2019-03-01

Micro controller based asymmetrical multilevel inverter

10.11591/ijra.v8i1.pp18-25
Arun V. , Prabaharan N.
This paper presents the Asymmetrical multilevel inverter with 1:3 voltage propagation. Switching pulse for Asymmetrical multilevel inverter are generated using embedded controller in m-file using MATLAB. The Asymmetrical multilevel inverter with 1:3 voltage propagation can produce high quality output voltage with less number of switches and voltage sources compare to conventional multilevel inverters. Contrasting other switching schemes, the proposed Switching scheme significantly reduces the Total Harmonic Distortion (THD) and minimize switching losses and reduces the complexity. To evaluate the developed scheme, simulations are carried out through MATLAB and real time implementations are done through microcontroller ARM Cortex™-M0 Core. The simulation and hardware results are presented.
Volume: 8
Issue: 1
Page: 18-25
Publish at: 2019-03-01
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