Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Pat, Suat(8)
- Özen, Soner(8)
- Agar, Guleray(6)
- Akkus, B.(6)
- Kizil, Hamit Emre(6)
- Ozdamli, F(6)
- Uzunboylu, H(6)
- Akdemir, A.O.(5)
- Ayberkin, Doruk(5)
- Dadasoglu, F.(5)
- Dertli, Enes(5)
- Dogan, G.S.(5)
- Ekinci, A.(5)
- Han, I.(5)
- Kanbul, S(5)
- Karagoz, K.(5)
- Karahoca, A(5)
- Korkmaz, Şadan(5)
- Oktem, Y.(5)
- Oztekin, A.(5)
- Set, E.(5)
- Tabakcioglu, Mehmet Baris(5)
- Şenay, Volkan(5)
- Akcamete, G(4)
- Anar, Mustafa(4)
- Babadoan, C(4)
- Chova, LG(4)
- Kaban, Guzin(4)
- Kahraman, Sakip(4)
- Karaali, R.(4)
- Kaya, Mukerrem(4)
- Martinez, AL(4)
- Mutlu, R.B.C.(4)
- Oulmu, S(4)
- Torres, IC(4)
- Yalcin, L.S.(4)
- Allm, Bünyamin(3)
- Caliskan, H(3)
- Guler, Evrim(3)
- Gürses, Ahmet(3)
Yayınlar
- BildiriAçık Erişim2011Primary school teachers of instructional technologies self-efficacy levels
Yalcin, Sema Altun; Kahraman, Sakip; Yilmaz, Zeynel Abidin
In this research, the level of primary school teachers self efficacy believes towards instructional technologies is investigated. The research is performed by applying questionnaires to 43 primary school teachers in Erzincan. The questionnaire consists of 28 questions. For the analysis of the research results SPSS program is used, mean and standard deviation for the answers of all lecturers in the research are calculated. Result of this study is concluded that primary school teachers have high self efficacy believe towards instructional technologies. And teachers believe that they have an understanding of how technology can be integrated into regular classroom instructional practices.
AtıfScopus9OpenAlex17
İncele - BildiriYalnız künye2011A Novel approach for modeling mechanical behavior of porous media
Altan, Burhanettin S.; Mollamahmutoglu, Murat
A multi-scale novel homogenization technique is introduced to model mechanical behavior of open-cell porous media. The proposed method consists of primarily four components. The first component is based on two assumptions. First, a random porous structure can be approximated by superimposing regular grids that are interacting with each other at "junction" points. The second component consists of replacing each grid by an equivalent continuum. The forces at the junction points are also replaced by interacting body forces. The third component is to represent the equivalent media by single medium by expressing the "average stresses" in the elastic mixture in terms of the "average displacement" It is discussed how to extract the information about the geometrical and mechanical properties of the grids by comparing the analytical and experimental data for the dispersion of waves propagating in porous medium.
- BildiriYayıncıda açık erişim2011Identifying the secondary school students' misconceptions about functions
Cansiz, Şükrü; Küçük, Betül; Lşleyen, Tevfik; Akcamete, G; Uzunboylu, H; Oulmu, S; Karahoca, A; Babadoan, C; Ozdamli, F; Kanbul, S
It is very important to identify and correct the mistakes that students make about mathematical concepts. The purpose of this study is to detect the secondary school students' misconceptions about functions in the 2009-2010 academic year. Research data was collected 61 students, included 9 th,10 th and 11 th grade students selected randomly, in Erzincan (2009-2010) academic year. Data collection tools consist of knowledge test and interviews. Frequency tables and percentages were used by analyzing students' explanations as answers to questions on the function information test. Pearson correlation was chosen to state the meaningful difference among the questions, if there is any, on the Function information test also included four different categories. Student, being believed to be in error, were interviewed with the help of data obtained from Function information test. As a result of the interview, it is most commonly observed that students make mistakes to understand whether a graphic is a function graphic or not, and about the demonstration of the table and function especially on the function information test.
AtıfScopus6WoS3OpenAlex12
İncele - BildiriAçık Erişim2011Scopus SJRQ2Site-response effects on RC buildings isolated by triple concave friction pendulum bearings
Ates, Sevket; Yurdakul, Muhammet
The main object of this study is to evaluate the seismic response effects on a reinforced concrete building isolated by triple concave friction pendulum (TCFP) bearings. The site-response effects arise from the difference in the local soil conditions at the support points of the buildings. The local soil conditions are, therefore, considered as soft, medium and firm; separately. The results on the responses of the isolated building are compared with those of the non-isolated. The building model used in the time history analysis, which is a two-dimensional and eight-storey reinforced concrete building with and without the seismic isolation bearings and/or the local soil conditions, is composed of two-dimensional moment resisting frames for superstructure and of plane elements featuring plane-stress for substructure. The TCFP bearings for isolating the building are modelled as of a series arrangement of the three single concave friction pendulum (SCFP) bearings. In order to investigate the efficiency of both the seismic isolation bearings and the site-response effects on the buildings, the time history analyses are elaborately conducted. It is noted that the site-response effects are important for the isolated building constructed on soft, medium or firm type local foundation soil. The results of the analysis demonstrate that the siteresponse has significant effects on the response values of the structure-seismic isolation-foundation soil system.
AtıfScopus9OpenAlex7İncele - BildiriYayıncıda açık erişim2011Investigation of university students' attitude toward the use of powerpoint according to some variables
Kahraman, Sakip; Çevik, Ceren; Kodan, Hülya; Karahoca, A; Kanbul, S
In this study it is aimed to investigate whether university students' attitudes toward the use of PowerPoint as a supporting teaching tool in the lectures change according to variables such as gender, academic units attended. For this purpose, the sample consisted of total 653 students who enrolled, Faculty of Education (N=287), Faculty of Engineering (N=125), School of Economics and Administrative Sciences (N=92) and Vocational School (N=149) in Bayburt University. Data was collected using "attitude toward the use of PowerPoint" scale. Additionally, students' opinions of the use of PowerPoint as a supporting teaching tool was collected from their responses to a questions form developed by researchers, then written documents analyzed to reveal their opinions with respect to the use of PowerPoint. The data obtained was statistically analyzed (ANOVA). It was found that there is no any statistically meaningful difference in the participants' attitude toward the use of PowerPoint in respect to gender, but there was significant difference in the participants' attitude toward the use of PowerPoint according to academic units attended. Recently, the findings were discussed in terms of the use of PowerPoint as a supporting tool in the lectures and its importance.
AtıfScopus11WoS14OpenAlex25İncele - BildiriAçık Erişim2011A study on developing an attitude scale towards multi-grade classrooms for elementary school teachers
Coskun, Kerem; Metin, Mustafa; Bülbül, Kenan; Yilmaz, Gül Kaleli; Akcamete, G; Uzunboylu, H; Oulmu, S; Karahoca, A; Babadoan, C; Ozdamli, F
The aim of this study is to develop an attitude scale towards multi-grade classrooms (AMC) for elementary school teachers who work in the Multi-grade Classrooms. The research was carried out with the total 215 elementary school teachers in Tokat and Samsun provinces in Turkey. The study carried out in five stages that are literature review, creating item pool, expert opinions, administer of scale and computing the reliability and validity. The five point rating scale consisted of 50 items was developed. The draft scale obtained has been applied to the total 205 elementary school teachers and as a result of factor analysis; the number of items in draft scale was reduced to 43. The Cronbach-Alpha internal integrity coefficient of the final version of the scale was found to be 0.81 after factor analysis was carried out. The scale has been ready to be used.
AtıfOpenAlex2İncele - BildiriAçık Erişim2010The effect of PowerPoint presentations prepared and presented by prospective teachers on biology achievement and attitudes toward biology
Gürbüz, Hasan; Kişoǧlu, Mustafa; Erkol, Mehmet; Alaş, Ali; Kahraman, Sakip; Uzunboylu, H
The study aims to explore the effect of preparing and presenting powerpoint slides on prospective teachers' biology achievement and attitudes toward biology. The sample of the study was 109 freshman students from Pre-School Education Department at Atatürk University in Turkey. The sample was randomly assigned as control group consisted of 53 students and experimental group consisted of 56 students. The experimental group was taught by powerpoint presentations preparing and presenting by prospective teachers while the lesson was conducted through traditional approach in the control group. Results indicated that preparing and presenting powerpoint slides had a significant effect on prospective teachers biology achievement and attitudes towards biology.
AtıfScopus5WoS8OpenAlex19İncele - BildiriYalnız künye2009Scopus SJRQ1Screening of Three Exons of the RET Proto-oncogene in Turkish Patients with Papillary Thyroid Carcinoma
Bayramci, N. S.; Acik, L.; Koc, L. Y.; Vural, G.; Kilic, M.; Tez, M.; Koc, M.; Ercakmak, N.
- BildiriYalnız künye2009Investigation of the effect of a polypropylene fiber material on the shear strength and CBR characteristics of high plasticity Ankara clay
Mollamahmutoglu, M.; Yilmaz, Y.
Nowadays, many soil improvement methods have evolved with different materials used. In this study, a series of laboratory tests are carried out to investigate the effect of a polypropylene fiber material on the shear strength and California Bearing Capacity (CBR) characteristics of high plasticity Ankara clay. First, geotechnical properties of Ankara clay are presented. Then, results of unconfined compressive strength, triaxial strength (CU type) and CBR tests conducted on the various polypropylene fiber/clay mixtures (0.1%, 0.2%, 0.3% and 0.4% by dry weight) are given. Samples were compacted at optimum moisture contents and maximum dry unit weights obtained from the standard Proctor compaction effort. Standard Proctor compaction tests and CBR tests revealed that percentage of 19 mm length F type polypropylene fiber did not influence much the optimum moisture content, maximum dry unit weight and CBR values. Unconfined compression tests showed that inclusion of fiber content increased the axial strain at failure. Moreover, consolidated-undrained (CU) triaxial test results exhibited that due to inclusion of 19 mm length F type polypropylene fiber, the cohesion intercept decreased slightly but the internal angle of friction increased considerably.
AtıfScopus2İncele - BildiriYalnız künye2005Scopus SJRQ4Effect of temperature for the adsorption of methylene blue onto activated carbon produced from waste dogrose seeds
Gürses, Ahmet; Doǧar, Çetin; Açikyildiz, Metin; Özkan, Esra; Bayrak, Ramis
Activated carbon, produced from dogrose (Rosa section Caninae) seeds, was used for the removal of methylene blue (basic dye). Adsorption studies were carried out at 20°C and 40°C at various initial dye concentrations (20, 40, 60, 80, and 100 mg/L) and at different lengths of time (15, 30, 60, and 120 min). Adsorption isotherms of the basic dye on the prepared adsorbent were determined and correlated with common isotherm equations. Fitting of the isotherm data to the BET adsorption isotherm model was better in high concentration ranges than in the other models. Thermodynamic parameters such as change in isosteric adsorption enthalpy (ΔH)y and isosteric adsorption entropy (ΔS)y were also determined to 40.8 kJ and 0.141 kJ, respectively. It was concluded that the adsorption of methylene blue increases with increasing temperature. BET model fitting indicates that the hydrophobic interactions between the dye and the produced active carbon at the first layer and the dipole-dipole interactions between methylene blue molecules and the adsorbed molecules at the secondary layer predominate. To investigate the adsorptive characteristics of the produced active carbon, porosity and BET surface area measurements were made.
AtıfScopus1OpenAlex1İncele