WoS İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12573/394

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Now showing 1 - 4 of 4
  • Conference Object
    Turkish English Teachers' Professional Teacher Self as One of the Possible Selves
    (Elsevier Science Bv, 2016-10) Demirezen, Mehmet; Ozonder, Ozgul
    This study reports the results of a study exploring Turkish English teachers' professional self in relation to teacher education. The study also examines the relationship between the participants' educational background, teaching experience and their professional self The study was carried out in Ankara, Turkey. The participants of the study were English language instructors of Hacettepe University, School of Foreign Languages. A total of 43 English instructors (females: 36 and males: 7) voluntarily participated in the study, responding to a questionnaire composed of 40 items regarding teacher professional self. The results of the Professional Self Questionnaire revealed that the rate of Turkish English teachers' professional self was very high (81%, M=4.09). Also, there was a significant difference in participants' professional self depending on their educational background. The results indicated that the participants' professional self did not differ significantly in relation to their teaching experience. (C) 2016 Published by Elsevier Ltd.
  • Conference Object
    Citation - WoS: 2
    Student EFL Teachers' Receptive Vocabulary Size
    (Elsevier Science Bv, 2016-10) Ozonder, Ozgul
    This study reports the results of a study investigating the receptive vocabulary size of student EFL teachers. The study also examined the relationship between the participants' academic achievement (departmental GPA) and their receptive vocabulary size and the existence of any gender-related difference. The study was carried out in English Language Teaching (ELT) Department of a major state university in Turkey. A total of 104 undergraduate students (females: 76 and males: 28) enrolled in the department voluntarily participated in the study, took the Version 2 of the Vocabulary Levels Tests (Schmitt, Schmitt & Clapham, 2001) and responded to a survey investigating their GPA scores and genders. The results revealed that student EFL teachers have a high level of total receptive vocabulary capacity size in their foreign language (M=103.82). Learners' academic achievement (GPA) is treated as an indicator of their language proficiency level in many studies of English Language Teaching (ELT) field. However, the results of this study revealed that there was not any statistically significant correlation between academic achievement (GPA) and their receptive vocabulary size. Although GPA may be a sign of academic achievement (GPA) and successful studentship, it may not readily one's actual English language proficiency. The results also indicated that there was no significant difference between males and females regarding their receptive vocabulary size. (C) 2016 The Authors. Published by Elsevier Ltd.
  • Conference Object
    Citation - WoS: 24
    Pre-Service Elementary Teachers' Motivations to Become a Teacher and Its Relationship With Teaching Self-Efficacy
    (Elsevier Science Bv, 2014-10) Bilim, Ibrahim
    This study investigated 341 pre-service elementary teachers' motives to become a teacher using Factors Influencing Teaching Choice (FIT-Choice) theory as a basis. It then investigated how these motivations change as candidates follow their training and these motivations' relationship with teaching self-efficacy. The results suggests that Altruistic motives (make social contribution, shape future of children and enhance social equity) were the most influential followed by prior teaching and learning experiences, work with children/adolescents, and job security. Intrinsic motives (perceived teaching ability and intrinsic career value) came next. ANOVA results suggest that the motivations for choosing this profession remain stable between Freshman, Sophomore and Junior candidates. Teaching self-efficacy was positively related to intrinsic motives and negatively related to "fallback career" motives of elementary teacher candidates. Implications of the results are further discussed. (C) 2014 The Authors. Published by Elsevier Ltd.
  • Conference Object
    Magnetic-Particle Based Signal Amplification Method Integrated With Mobile-Devices for Low Cost Biosensing
    (Elsevier Science Bv, 2017) Mzava, Omary; Tas, Zehra; Lafci, Vahit Can; Cakar, Mehmet Akif; Ozdur, Ibrahim; Icoz, Kutay
    We present a signal amplification method for biosensing applications using magnetic particles. In this method, mobile devices and simple spherical glass beads are used as a low-cost microscope to detect magnetic particles. Magnetic particles have two main functions; 1) conventionally capture, separate and transport target molecules 2) form magnetic dipoles under an applied external magnetic field to attract other magnetized particles. When magnetic particles accumulate and form a cluster, the corresponding pixel area in the image taken by the simple microscope is increased resulting in signal amplification. Current focus of new generation biosensor research is to increase the sensitivity levels of the devices to compete with current lab analysis tools while inherently having other advantages such as being low-cost, portable and simple. Biosensors based on micro/nano magnetic particles use various measurement techniques and amplification methods. In order to fully benefit from the advantages of micro/nano technology based systems, measurement set up must be also portable and have high sensitivity. Mobile devices and applications are taking place in medical fields and have high potential for future. In this work mobile devices are employed as measurement setups for the magnetic particle based sensing and signal amplification. The amplification method is not based on bimolecular binding thus cost efficient. After the images of the magnetic particles are taken, these images are sent to cloud computing for analysis by the mobile device. Matlab codes run on cloud servers for processing the images. Finally results are received and displayed on the mobile device. The mobile device based imaging system is able to detect 7 mu m size particles within a 1500 mu m x1500 mu m area and magnetic bead accumulation resulted in at least 5-fold signal amplification. The applied magnetic field is approximately 15 mT and the cost of the system excluding mobile device is under 20 cents. The method is promising for immunomagnetic bead assisted biosensors. (c) 2016 The Authors. Published by Elsevier Ltd.