Now showing items 21-30 of 51
An Investigation of Teachers' Self Efficacy Beliefs Concerning Educational Technology Standards and Technological Pedagogical Content Knowledge
This study aims to investigate the technological pedagogical content knowledge levels of teachers and their self-efficacy in educational technology standards. Also, the difference between the mean scores of the teachers ...
An Analysis of University Students' Perceptions of The Concepts of "Water" And "Water Pollution" Through Metaphors
(Modestum Ltd, 2017)
This study aimed to determine university students' perceptions concerning the concepts of "water" and "water pollution" by means of metaphors. The study group was composed of 258 undergraduate students attending Hacettepe ...
Annulus Criteria For Mixed Nonlinear Elliptic Differential Equations
(Pergamon-Elsevier Science Ltd, 2011)
New oscillation criteria are obtained for forced second order elliptic partial differential equations with damping and mixed nonlinearities of the form del . (A(x)vertical bar del y vertical bar(alpha-1)del y) + < b(x), ...
A Ruthenium-Based Catalytic System with Switchable Selectivity Between Cyclotrimerization and Enyne Metathesis/Diels-Alder Reactions of Terminal Alkynes
In this study, we report a practical catalytic system, [RuCl2( p-cymene)](2)/IPr (IPr: 1,3-bis(2,6 diisopropylphenyl) imidazol-2-ylidene), that can switch between cyclotrimerization and cross enyne metathesis. The ...
An Analysis of Prospective Teachers' Perceptions Concerning The Concept of "Social Media" Through Metaphors
(Iser Publications, 2018)
This study was conducted so as to determine prospective teachers' perceptions of the concept of "social media" through metaphors. The study group was composed of 138 prospective biology teachers attending Hacettepe and ...
Three New Species With Two Flowered Spikelets In Acantholimon (Plumbaginaceae) From East Anatolia, Turkey
Three new species, Acantholimon bashkaleicum sp. nov., Acantholimon artosense sp. nov. and Acantholimon hoshapicum sp. nov. (Plumbaginaceae) are described and illustrated. The species are all confined to B9/B10 Van Province ...