DETERMINING SCIENCE TEACHERS’ LEVELS OF MOTIVATION AND SELF-REGULATION REGARDING USE OF EDUCATION TECHNOLOGIES

In line with the growing importance of use of education technologies in the field of education, teachers are increasingly expected to use education technologies in class environment and to provide students with appropriate environments and opportunities to use these technologies. This situation makes it necessary to investigate teachers’ motivation for use of education technologies as well as their levels of self-regulation. For this reason, the purpose of this study was to determine science teachers’ levels of self-regulation and motivation for use of education technologies. The research sample included a total of 107 science teachers (Female:42; Male:65) working in the cities of Diyarbakir (F:16; M:33) and Bingöl (F:26, M:32) in the academic year of 2015-2016. In the study, the survey method, one of quantitative research methods, was used. The results revealed that the science teachers participating in the study had high levels of self-regulation and motivation regarding the use of education technologies. In addition, it was found that the science teachers’ levels of motivation regarding use of education technologies increased as they had higher levels of education. Depending on the findings, several suggestions were put forward including encouragement of science teachers to taking post-graduate education.   Article visualizations

A framework for the use of wireless sensor networks in forest fire detection and monitoring

Ankara : The Department of Computer Engineering and the Institute of Engineering and Science of Bilkent University, 2010.Thesis (Master's) -- Bilkent University, 2010.Includes bibliographical references leaves 70-72.Wireless sensor networks have a broad range of applications in the category of environmental monitoring. In this thesis, we consider the problem of forest re detection and monitoring as a possible application area of wireless sensor networks. Forest res are one of the main causes of environmental degradation nowadays. The current surveillance systems for forest res lack in supporting real-time monitoring of every point of the region at all time and early detection of the re threats. Solutions using wireless sensor networks, on the other hand, can gather temperature and humidity values from all points of eld continuously, day and night, and, provide fresh and accurate data to the re ghter center quickly. However, sensor networks and nodes face serious obstacles like limited energy resources and high vulnerability to harsh environmental conditions, that have to be considered carefully. In our study, we propose a comprehensive framework for the use of wireless sensor networks for forest re detection and monitoring. Our framework includes proposals for the wireless sensor network architecture, clustering and communication protocols, and environment/season-aware activity-rate selection schemes to detect the re threat as early as possible and yet consider the energy consumption of the sensor nodes and the physical conditions that may hinder the activity of the network. We also implemented a simulator to validate and evaluate our proposed framework, which is using an external re simulator library. We did extensive simulation experiments and observed that our framework can provide fast reaction to forest res while also consuming energy e ciently.Aslan, Yunus EmreM.S

Variable length coding over an unknown channel

Burnashev in 1976 gave an exact expression for the reliability function of a discrete memoryless channel (DMC) with noiseless feedback. A coding scheme that achieves this exponent needs, in general, to know the statistics of the channel. Suppose now that the coding scheme is designed knowing only that the channel belongs to a family Q of DMCs. Is there a coding scheme with noiseless feedback that achieves Burnashev's exponent uniformly over Q at a nontrivial rate? We answer the question in the affirmative for two families of channels (binary symmetric, and Z). For these families we show that, for any given fraction, there is a feedback coding strategy such that for any member of the family: i) guarantees this fraction of its capacity as rate, and ii) guarantees the corresponding Burnashev's exponent. Therefore, for these families, in terms of delay and error probability, the knowledge of the channel becomes asymptotically irrelevant in feedback code design: there are blind schemes that perform as well as the best coding scheme designed with the foreknowledge of the channel under use. However, a converse result shows that, in general, even for families that consist of only two channels, such blind schemes do not exist

Investigation of teacher candidates’ university life quality and professional anxiety in terms of various variables

Bu araştırmada fen bilgisi, beden eğitimi ve spor, sosyal bilgiler ve müzik öğretmen adaylarının üniversite yaşam kalitesi ve mesleki kaygı düzeylerinin bölüm, sınıf, akademik başarı, cinsiyet, yaş ve ekonomik gelir değişkenlerine göre incelenmesi amaçlanmıştır. Araştırmada kesitsel tarama modeli benimsenmiştir. Araştırma 2019-2020 akademik yılında Atatürk Üniversitesi Kazım Karabekir Eğitim Fakültesi fen bilgisi eğitimi, beden eğitimi ve spor, sosyal bilgiler eğitimi ve müzik eğitimi anabilim dallarında öğrenim gören 400 öğretmen adayı ile gerçekleştirilmiştir. Veri toplama aracı olarak Eriş ve Anıl (2016) tarafından geliştirilen Üniversite Yaşam Kalitesi Ölçeği ve Cabi ve Yalçınalp (2013) tarafından geliştirilen Mesleki Kaygı Ölçeği kullanılmıştır. Sonuç olarak öğretmen adaylarının üniversite yaşam kalitelerinde öğrenim görülen bölüme, sınıf düzeyine, cinsiyete, gelir durumuna göre anlamlı farklılaşmalar olduğu belirlenmiştir. Öğretmen adaylarının mesleki kaygı düzeylerinde öğrenim görülen bölüme, cinsiyete, gelir durumuna göre farklılaşma olmadığı ve sınıf düzeyine göre anlamlı farklılaşma olduğu tespit edilmiştir. Öğretmen adaylarının üniversite yaşam kalitesi memnuniyetleri ile mesleki kaygıları arasında düşük düzeyde negatif ve anlamlı bir ilişki olduğu sonucuna ulaşılmıştır.In this study, it was aimed to examine the university life quality and professional anxiety levels of science, physical education and sports, social studies and music teacher candidates according to the variables of department, grade, academic achievement, gender, age and economic income. Cross-sectional scanning model was adopted in the study. The research was carried out with 400 teacher candidates studying in the departments of science education, physical education and sports, social studies education and music education at Atatürk University Kazım Karabekir Education Faculty in the 2019-2020 academic year. The University Quality of Life Scale developed by Eriş and Anıl (2016) and the Occupational Anxiety Scale developed by Cabi and Yalçınalp (2013) were used as data collection tools. As a result, it was determined that there are significant differences in the quality of life of teacher candidates according to the department of education, class level, gender, and income level. It was determined that there are no differences in the occupational anxiety levels of the teacher candidates according to the department, gender, income level and there is a significant difference according to the grade level. It was concluded that there is a low level negative and significant relationship between teacher candidates' satisfaction with university life quality and their professional anxiety

Ranolazine improved left ventricular diastolic functions and ventricular repolarization indexes in patients with coronary slow flow

IntroductionCoronary slow flow (CSF) is a condition commonly encountered during angiography. Recent studies have shown the adverse effects of CSF on left ventricular diastolic functions. CSF reportedly increases the novel ventricular repolarization parameters. Ranolazine is a preparation with a prominent anti-anginal activity that has positive effects on anti-arrhythmic and diastolic parameters. In this context, this study was carried out to investigate the effects of ranolazine on left ventricular diastolic functions and repolarization in patients with CSF.Material and methodsForty-six patients with CSF and 29 control subjects were included in the patient and control groups, respectively. Both groups received ranolazine for one month and were evaluated using 12–lead electrocardiography, conventional echocardiography, and tissue Doppler imaging at the baseline and after one month of ranolazine treatment.ResultsCorrected P, QT dispersion, and Tp-e interval values were significantly higher in the patient group than in the control group. There was a significant decrease in isovolumic relaxation time (IVRT) and deceleration time (DT) values after the ranolazine treatment compared to the baseline values in the patient group but not the control group. A significant increase was observed in the mean E and A velocities and the mean E/A ratio after the ranolazine treatment compared to the baseline values in the patient group. Additionally, there was a significant difference between the Tp-e interval and corrected P dispersion values measured after the ranolazine treatment compared to the baseline values in the patient group but not in the control group.ConclusionThis study's findings demonstrated that ranolazine positively affected impaired diastolic functions and repolarization parameters, particularly in patients with CSF

Doğu Karadeniz Şehirlerine Yönelik Marka Şehir Tutumları Üzerine Bir Araştırma

Şehirler, bir yerleşim yeri olmakla birlikte aynı zamanda sosyal, kültürel ve ekonomik etkileşim merkezleridir. Şehirlerin en önemli görevlerinden biri vatandaşlarının huzurunu ve refahını artırmaktır. Şehirlerin bu görevlerini yerine getirebilmeleri için somut değerlerin yanında soyut değerler de üretmeleri gerekmektedir. Bu soyut değerlerin başında marka yer almaktadır. Şehirlerin markalaşma yolu ile soyut değerlere sahip olması, bir ürünün ulaşamayacağı derecede yüksek gelire ulaşması anlamına gelmektedir. Bu yüksek gelire ulaşmak isteyen şehirlerin son yıllarda markalaşma çalışmalarına önem verdikleri görülmektedir. Markalaşma çalışmaları çoğunlukla dış hedef kitleye yönelik yapılmaktadır. Ancak, iç hedef kitlede markalaşmayan hiçbir ürün, hizmet veya değer, gerçekten markalaşmış olmaz. Markanın en önemli temsilcilerinden olan iç hedef kitle, aynı zamanda markanın bir taşıyıcısı ve inşa edicisi konumundadır. İç hedef kitleye diğer bir ifadeyle o şehirde ikamet eden bireylere odaklanan bu araştırma, bireylerin kendi şehirleriyle ilgili marka tutumlarını ölçmeyi amaçlamaktadır. Doğu Karadeniz Bölgesi’nde yer alan yedi şehir üzerinde gerçekleştirilen bu araştırmada, her bir şehirde yaşayan şehir sakinlerine kendi şehirleri ile ilgili marka tutumları sorulmuş ve elde edilen cevaplar analiz edilmiştir. İstatistik paket programı yardımıyla analiz edilen sonuçlar, temelde iki farklı boyutta incelenmiştir. İlk boyut tüm şehirlerden toplanan verilerle bölge şehirlerinin geneline yönelik tutumları içerirken, ikinci boyutta ise her bir şehir ayrı ayrı analiz edilmektedir. Frekans, güvenilirlik ve faktör analizlerinden yararlanılan bu araştırma, 1315 kişi üzerinde uygulanmış ve 1221 anket araştırmaya dahil edilmiştir. Bu çalışmada bölge şehirlerine yönelik genel marka tutumlarının beş faktör çerçevesinde kavramsallaştırılabildiği görülmektedir. Bunlar; aidiyet, özdeğer, farkındalık, kalite ve çekiciliktir

The Effects of Separate and Combined Use of PGF2α and GnRH Hormones and the Addition of Βeta-Carotene on Fertility Parameters in Dairy Cows with Ovarian Cysts

Background: Ovarian cysts are commonly observed pathologies, which interfere with normal cyclic activity and adversely affect fertility in cows. Beta-carotene is effective in the reduction of reproductive problems by inducing the natural defence mechanisms of the body. There are several methods that can be used for the treatment of ovarian cysts. The separate and combined use of GnRH and PGF2α commonly uses in the treatment of ovarian cysts. Therefore, in the presented study the effects of Beta-carotene (βC) addition for the treatment of ovarian cysts either with GnRH solely or GnRH and PGF2α in combination on the fertility parameters of dairy cows were investigated.Materials, Methods & Results: Seventy-six Holstein Friesian cows having ovarian cysts diagnosed by ultrasonography (USG) were divided into three groups. Cows in Group I (GI, n = 27), were injected with GnRH (Buserelin acetate, 5 mL, im), PGF2α (Tiaprost-trometamol, 5 mL, im) and βC (20 mL/cow, into 4 regions by im route). In Group II (GII, n = 25) GnRH (Buserelin acetate, 5 mL, im) and PGF2α (Tiaprost-trometamol, 5mL, im) were administrated while GnRH (Buserelin acetate, 5 mL, im) solely in Group III (GIII, n = 24). Cysts were monitored via USG, and blood samples were collected on the on day of treatment (day 0) and on the 7th and 14th days following the administrations. Cows shoving oestrous were inseminated and pregnancy diagnoses were performed on the 40th day following insemination. Treatment results showed that there were statistically no significant differences between GI and GII (P > 0.05). Only numerical difference obtained in time from therapy to pregnancy and overall pregnancy index (P > 0.05). Overall pregnancy rate (85 %), first service pregnancy rates (40 %) and overall pregnancy index (2.11) in GI were found significantly higher than GIII (53.3 %; 20 %; 4.12) [P < 0.05]. No significant difference was observed in progesterone (P4) levels between the groups (P > 0.05). It was found that βC administrations significantly increased βC levels in GI than GII and GIII on the 7th and 14th days (P < 0.05).Discussion: One of the most common problems encountered in modern dairy production is the development of ovarian cysts. Treatments for ovarian cyst are numerous and variable, and have changed considerably over the years. In the present study, GnRH and PGF2α were administered together as a combination, and as a result of this combined use, higher percentages were obtained for both pregnancy rate and fertility parameters in GI and GII, in comparison to the group administered with GnRH alone (GIII). Better outcome from combination therapy (GnRH and PGF2α) may be due to the fact that luteal thickening in the walls of cysts was determined by ultrasonography, but P4 values were not identified immediately and the treatments were not categorized in accord with these values. No statistically significant differences were determined between GI and GII concerning the fertility parameters investigated, however numerical and proportional differences were observed. βC levels were significantly higher on day 7 and 14 after treatment in GI which were administered βC additionally to the treatment protocol for ovarian cysts. This statistical difference suggests that administration of βC in combination therapy is also effective in the treatment of ovarian cysts. In conclusion, it was determined that high pregnancy rates were obtained by the combined treatment of ovarian cysts (GnRH + PGF2α) and number of inseminations per conception were at desired limits. Better percentile and numerical fertility parameters were achieved in the group, which additionally received βC, high numbers of infertility cases, βC supplementation could be a viable option for treatment

Orta Anadolu’daki Parkinson Hastalarında Homosistein ve MTHFR Polimorfizmleri Arasındaki İlişkinin Araştırılması ve Tedavi Seçenekleri

Aim In this study, we aimed to investigate the effects of MTHFR C677T and A1298C polymorphisms to homocysteine levels in patients with Parkinson's disease who were treated with levodopa and entekapone. Materials and Methods Plasma homocysteine (hcy), folic acid and vitamin B12 levels and MTHFR (C677T, A1298C) polymorphisms and treatment options were compared in 70 Parkinson's Disease (PD) patients who taking levodopa (n=26), dopamine agonist (n=11) and levodopa and entacapone treatment together (n=33) with 100 controls. Results Although no statistically significant difference was detected, hcy level of the patients was found higher compared to control group (patient 18.29 ± 9.22 µmol /l vs control 15.77 ± 7.58 µmol / l) and hcy level was highest in the patients receiving only levodopa (19.56 ± 10.77 µmol / l). The frequency of TT genotype in the patients was higher compared to the control group (11.4%, 6%). Especially, hcy level for levodopa-receiving patients with 677TT genotype became significantly higher level when compared with other genotypes of levodopareceiving patients (respectively 677TT 36.28 ± 16.17, 677CT 13.5 ± 1.71, 677CC 17.2 ± 6.59). No statistically significant difference was detected between patients and controls regarding their folic acid and vitamin B12 levels and A1298C polymorphism. Conclusion Finally, both 677TT genotype and levodopa treatment might be jointly contributed to the increasing of the plasma hcy levels in PD patients and entacapone limitedly decreased hcy levels during levodopa treatment. It can be said that results need to be supported with larger sample sized comprehensive studies.Amaç Çalışmamızda levodopa ve entekapon kullanan Parkinson hastalarında MTHFR genindeki C677T ve A1298C polimorfizmlerinin homosistein düzeyine etkilerini araştırmayı amaçladık. Materyal ve Metot 70 Parkinson (PD) hastasında; plazma homosisteini (hcy), folik asit, B12 vitamini seviyeleri, MTHFR (C677T, A1298C) polimorfizmleri ve tedavi seçenekleri karşılaştırıldı. 100 kişilik bir kontrol grubunun yer aldığı çalışmada, 70 hastanın 26’sı levodopa (n=26), 11’i dopamin agonisti (n=11) kullanırken, 33 hasta da levodopa ve entakapon tedavisini birliktealmaktaydı. Bulgular İstatistiki olarak anlamlı bir fark gözlenmese de, hastalardaki homosistein seviyesinin kontrol grubunda yer alanlara göre daha fazla olduğu tespit edildi (hasta 18.29 ± 9.22 µmol /l vs kontrol 15.77 ± 7.58 µmol/ l). Ayrıca homosistein seviyesinin en yüksek olduğu hasta grubunun sadece levodopa kullanan hastalar olduğu görüldü (19.56 ± 10.77 µmol / l). Hastalardaki TT genotipinin sıklığının da kontrol grubunda yer alanlara göre daha fazla olduğu görüldü (%11.4, %6). Özellikle, levodopa kullanan ve 677TT genotipine sahip olan hastalardaki homosistein seviyesi, levodopa kullanan ve diğer genotiplere sahip olan hastalardaki homosistein seviyesine göre anlamlı bir şekilde yüksek (sırasıyla 677TT 36.28 ± 16.17, 677CT 13.5 ± 1.71, 677CC 17.2 ± 6.59). Hastalar ve kontrol grubu arasında folik asit ve B12 vitamini seviyeleri ile A1298C polimorfizmi açısından anlamlı bir farka rastlanmadı. Sonuç Sonuç olarak; Parkinson hastalarında 677TT genotipinin ve levodopa kullanımının bir arada olmasının plazma homosistein seviyesini artırdığı, ayrıca entakaponun levodopa tedavisi esnasında sınırlı da olsa homosistein seviyesini düşürdüğü gözlemlenmiştir. Ancak sonuçların daha fazla örnek sayısı içeren kapsamlı çalışmalarla desteklenmesinin gerekli olduğu söylenebilir

Identifying the Target Needs of Preparatory Classes for UndergraduatePrograms in Foreign Languages: A Case Study of the Engineering Departments

The aim of this study is to identify the target needs of preparatory classes for undergraduate programs which teach in foreign languages, in English. The differences between the target needs and the current level of the students constitute the subject of this study. The discrepancy model has been used as the need identification approach. In the discrepancy model, firstly the needs are identified, and then the deficiencies and current level are found. The study was formed in the qualitative research model and nineteen lecturers were included in the study to identify the needs of the study group. At the deficiencies and current level identification stage, the study group consisted of twenty three engineering students who has passed the preparatory class and are having the field courses. Furthermore, thirty two preparatory lecturers were also included in the study group to ascertain the current level. A structured interview form and a questionnaire were used as data collection tools. Data collected through interviews was analyzed with the content analysis method. Mean and standard deviation values were calculated in the analysis of the collected data. According to the study results, the students are equipped with general English skills in preparatory classes. It was also found that the students were given general English classes throughout the year, they focused on grammar and that students were provided with general speaking and writing skills for general subjects at a basic level. However, according to the views of students and lecturers who teaches in field courses, the gainings of preparatory English classes are not sufficient for the field courses. Students and lecturers are of the opinion that problems arise in the understanding and presentation of technical texts in English