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- 저자 : Y. Göktaş (검색결과 2 건)
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Yasemin Taş Torun,Esra Güney,Arzu Aral,Dicle Büyüktaşkin,Hüseyin Tunca,Yasemen Işik Taner,Elvan İşeri 대한정신약물학회 2019 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.17 No.4
Objective: The effect of vascular endothelial growth factor (VEGF) on neuronal development is known, but its relationship with attention deficit hyperactivity disorder (ADHD), a neurodevelopmental disorder, has not yet been fully elucidated. To our knowledge, this is the first human study investigating serum VEGF levels in ADHD patients. In this study, it has been aimed to compare serum VEGF levels between a healthy control group and in ADHD patients to help determine the association between serum VEGF levels and ADHD. Methods: This study sample included forty-four patients diagnosed with ADHD and 43 healthy volunteer controls between 7 to 14 years old. Blood samples were taken from patients and the healthy control group to assess their serum VEGF levels. VEGF levels were calculated by subjecting the optical densities of the samples to concentrations of known standards as provided in the ELISA kit and then performing a regression correlation analysis. Results: The mean VEGF level of the children was 333.6 ± 209.8 in the ADHD group and 341.3 ± 201.8 in the control group. There were no statistically significant differences in serum VEGF levels between the ADHD and control groups (U = 926.000, z = −0.170, p = 0.865). Conclusion: There was no significant difference in serum VEGF levels for untreated ADHD cases and a healthy control group. This is the first human study investigating serum VEGF levels in ADHD patients, so there is a need to replicate these findings.
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3D virtual learning environments in education: a meta-review
I. Reisoğlu,B. Topu,R. Yılmaz,T. Karakuş Yılmaz,Y. Göktaş 서울대학교 교육연구소 2017 Asia Pacific Education Review Vol.18 No.1
The aim of this study is to investigate recent empirical research studies about 3D virtual learning environments. A total of 167 empirical studies that involve the use of 3D virtual worlds in education were examined by meta-review. Our findings show that the “Second Life” platform has been frequently used in studies. Among the reviewed papers, case study designs and quasi-experimental studies were more common. Sample sizes were below 100 for most studies. 3D virtual learning environments are mainly designed for learning support, simulation, and game. Language learning and science have been the most extensively studied topics. Collaborative and exploration-based learning strategies have been used most frequently in 3D virtual learning environments. Presence, satisfaction, communication skills, and engagement were examined as emotional and cognitive achievements.
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