Kaya, Erdal Oğuz

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Erdal Oğuz Kaya
Erdal Oguz Kaya
Kaya, Erdal Oğuz
E. O. Kaya
E. O. KAYA
E. Oğuz Kaya
Erdal Oguz KAYA
Kaya, O.
Erdal O. Kaya
Kaya, Oguz
Kaya, Oğuz
Erdal Oğuz, Kaya
Kaya Erdal Oğuz
Kaya Erdal Oguz
KAYA Erdal Oguz
Erdal Oğuz KAYA
KAYA Erdal Oğuz
Kaya, Erdal
E. Oguz Kaya
Kaya, E.
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Dr.Öğr.Üyesi
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erdal.kaya@okan.edu.tr
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Scholarly Output

3

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1

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1

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    Article
    Citation Count: 1
    Can the use of surface sealant on restorative materials prevent discoloration related to iron syrup supplements?
    (Springer, 2021) Yildirim, S.; Kaya, E.; Tıbbi Laboratuvar Teknikleri / Medical Laboratory Techniques
    Purpose The purpose of this study was to evaluate the impact of surface sealants on the stain resistance of restorative materials exposed to iron syrups. Methods Sixty specimens were prepared from each of three restorative materials-compomer (Dyract XP), a microhybrid composite (Filtek Z250), and a nanohybrid composite (G-aenial Anterior). Specimens were divided into three solution groups (n = 20) and immersed in two iron syrups (Ferrum and Ferro Sanol B) and distilled water. Two subgroups, sealed (BisCover ( +)) and unsealed (BisCover (-)), were established for each group (n = 10). Color changes between baseline and measurements at 4, 8, 24, 48, and 72 h were calculated with CIEDE2000 (Delta E-00) metrics. Data were analyzed with 4-factor mixed-design ANOVA. Results The first null hypothesis of this study that the use of surface sealant would not mitigate the restorative materials' susceptibility to staining was rejected: significant differences were found between BisCover ( +) and BisCover (-) groups in Delta E00 values for all restorative materials tested in Ferro Sanol B (p < 0.001) and Ferrum (p = 0.002) solutions. The Delta E-00 values in the Ferro Sanol B/BisCover ( +) groups were significantly lower than in Ferrum/BisCover ( +) groups (p = 0.002), the second null hypothesis that different forms of iron syrups would not impact the staining resistance of restorative materials was rejected. Delta E-00 values were different for each restorative materials tested, the third null hypothesis that the type of restorative material would not affect staining resistance was rejected. Conclusions The application of surface sealant significantly improved the color stability of restorative materials. The content of iron syrups was also an important factor affecting color change. Nanohybrid composites seem to be more resistant to the staining effects of iron syrups.
  • Thumbnail Image
    Master Thesis
    Kocaeli ilinde boşanma olgusunun incelenmesi
    (2014) Kaya, Oğuz; Şar, Ali Haydar; Tıbbi Laboratuvar Teknikleri / Medical Laboratory Techniques
    Bu araştırmada Kocaeli ilinde yaşayan boşanmış bireylerin boşanma öncesi yaşadığı problemler, boşanma nedenleri ve boşanma sonrası karşılaştıkları güçlükler ile ilgili olarak hazırlanan soru kâğıdıyla hukuki boyutta resmi nikâh akdi bulunan boşanmış bireyler arasında anket çalışması yapılmıştır. Bu anket ile boşanmış bireylerin yaşadıkları sıkıntıları demografik, sosyal, psikolojik ve ekonomik değişkenlere göre ortaya koymak ve araştırmadan elde edilecek sonuçlar doğrultusunda aile bütünlüğünün korunması için alınması gereken önlemlere yönelik öneriler geliştirmek hedeflenmektedir. Elde edilen veriler, Kocaeli ilinde aile ve sosyal yapının incelenmesi alanında çalışanlar, sosyal devlet anlayışı çerçevesinde hizmet üreten politikacılar, toplumsal yapıya ilişkin verilere ihtiyaç duyan tüm özel ve tüzel kişilere yarar sağlayacaktır. Küreselleşmeyle hızla yayılan tüketim kültürü, aileleri gereğinden fazla israfa yöneltmektedir. Bununla beraber, görsel ve işitsel medya ile sürekli enjekte edilen popüler kültür, aileleri kültürel bir yozlaşmaya sürüklemektedir. Devlet, bu konuyla ilgili stratejiler geliştirmeli, popüler kültürün olumsuz etkilerini en aza indirgeyen yayınlar yapmalıdır. Boşanmadan en çok etkilenenler kuşkusuz çocuklardır. Boşanma sürecinde ve sonrasında çocukların bu durumdan en az etkilenmesi için devlet desteğiyle profesyonel yardımlar zorunlu hale getirilmelidir. Toplumsal yapı, ananeler, hukuki çerçeveler ve dini ritüeller ile aile yapısının bütünlüğü sağlanmak istense de boşanma olgusu giderek artmaktadır. Bu durumun önlenmesi gün geçtikçe zorluk teşkil etmektedir. Eşler arasındaki kültürel farklılıklar, kıskançlık, bencillik, fikir ayrılığı, ailelerin evliliklere müdahil olması, ekonomik sıkıntılar, doyumsuzluk, sözlü, duygusal ve fiziksel şiddet gibi konulardan kaynaklanan nedenler evliliği boşanmaya sürüklemektedir. Ancak bu durumu önlemek veya en aza indirgemek için evlilik öncesi ve evlilik esnasında gerekli eğitimler verilerek çiftlerin evlilik aşamasında ve evliliği süresince kaliteli bir yaşam sürmesi sağlanabilir. Bu hususun hayat geçirilmesi ve nitelikli bireyler yetiştirilmesi ile hem boşanma oranlarında azalma sağlanacağı gibi hem de çiftlerin insanca bir yaşam sürmesi erdemine kavuşacaklardır.
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    Conference Object
    Citation Count: 0
    Assessing Parents Perception of Environmental Awareness
    (2013) Ozyaral, O.; Ayra, F.; Kaya, E.; Tıbbi Laboratuvar Teknikleri / Medical Laboratory Techniques
    It is inevitable to avoid from the influences of some adversities to arise in the ecosystem as "environmental risks" on our lives. The present study aims to determine the level of perception of parents on environmental awareness and environmental protection and to raise awareness on the environmental value and protection. In the present study, the questionnaires were administered to the parents of two private kindergarten students in Ki{dotless}zi{dotless}ltoprak-Erenköy districts on the Asian side of Istanbul as well as the parents of first and second grade students of a private primary school in Umraniye district on the Asian side of Istanbul. The parents of these first and second grade students and the kindergarten students were asked to fill in these questionnaires. A questionnaire prepared by the researchers and consisting of 76 questions was administered to the parents of the kindergarten students in order to measure their parents' environmental perception, 12 of which were prepared to measure the demographic characteristics and 64 of which were prepared for the perception measurement. In the study, the relations between the socio-economic and demographic characteristics of the parents and their environmental perceptions were tried to be found out. Moreover, to what extent the parents put into practice what they know was analyzed so that it can be shown how the information acquired affects the behavior acquisition. In line with the findings obtained, the fact that the awareness of the parents themselves on environment and ecosystem should be improved so that they can transfer the proper actions and approaches they have internalized to their children was found out. Emphasizing the environmental education in every part of the life and providing this education through non-governmental organizations and the experts and the efficiency of the media in this regard were among the results. In addition, the environmental awareness studies should begin during childhood for the sustainability of the environmental awareness education and the media studies should be heavily focused on so that the socio-cultural behavior changes could be ensured in the society and the social media studies should be made. © SGEM2013 All Rights Reserved by the International Multidisciplinary Scientific GeoConference SGEM.