Browsing by Author "Demir, Ö."

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Bilateral Abducens Paralysis Following Head Injury: a Case Report
(2003) Yilmaz, N.; Arslan, M.; Kiymaz, N.; Demir, Ö.; Yilmaz, C.
Cranial nerve lesions often accompany head trauma. Olfactory, facial and vestibular nerves are the most commonly injured nerves. Optic and oculomotor nerve injuries are less frequently involved, and trigeminal, abducens and lower cranial nerves are rarely involved. The injury may occur in central nervous system or in the lower motor unit. Traumatic bilateral abducens paralysis is a very rare occurrence. It may follows cervical spine trauma and sixth nerve avulsion has been reported to complicate lumbar puncture. In this study, we describe an 11-year-old boy with bilateral abducens paralysis following hematoma in the left ponto-cerebellar angle and hemorrhage in the prepontine cisterns due to head trauma. Such hemorrhages might result in lesions in the supranuclear regions by traction on the nerve due to displacement of the pons and its nucleus as a result of direct pressure. © 2003, IOS Press. All rights reserved.
Participation Style and Social Anxiety as Predictors of Active Participation in Asynchronous Discussion Forums and Academic Achievement
(Springer, 2023) Demir, Ö.; Cinar, M.; Keskin, S.
Learners in asynchronous discussion forums are inundated with diverse options when it comes to interaction. This enables the embodiment of various styles of participation. On the other hand, the affective domain tends to be overlooked in the online discussion context. The modeling of discussion activities based on both cognitive and affective indicators constitutes this study’s unique aspect. In the study, the impact of social anxiety and participation styles on active participation in discussions were investigated using three-factor social anxiety and four-factor participation style models. In addition, the impact of active participation on academic achievement was also examined. Path analysis was used to explain the predictive correlation among these indicators. Students' participation behaviors in discussions during a three-week implementation were analyzed within the scope of a course taught during the COVID-19 pandemic period. The findings showed that social anxiety and participation styles had a significant impact on active participation, which, in turn, significantly affected academic achievement. The study provides crucial inputs in portraying the characteristics of learners in such a way as to tailor online discussions to their needs. © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.