32 research outputs found
Çatlak tokluğu tayini için geliştirilmiş uyarlanmış halka testine geometrik faktörlerin etkisinin araştırılması.
No full textModified Ring specimens are of the shape of discs having a hole inside and flattened ends. These specimens are used for determination of Mode I fracture toughness. Finite element program, named ABAQUS, is used for numerical modeling for finding stress intensity factors. Varying disc geometries were used for the experiments and numerical modeling in which size of the flat ends, radius of the hole inside, and external radius of the specimen were varied. Experiments were done by using pink Ankara andesite. Effects of internal hole radius, external disc radius and size of the flat ends on both stress intensity factor and fracture toughness were studied. In order to compare the results, fracture tests with semi-circular specimens under three point bending (SCB) were also performed. From a similar previous study, fracture toughness values of gray andesite were recalculated and compared to the fracture toughness values of pink andesite for varying geometrical factors. Size effect studies were performed as well for varying diameter of core specimens.Fracture toughness values of andesite were found to increase with increasing specimen size. Fracture toughness of 100 mm specimens was determined as 1.11±0.07 MPa√m, whereas fracture toughness of 75 mm specimens was 0.96±0.08 MPa√m. 100 mm or larger diameter specimens were suggested for the fracture toughness determination with the modified ring tests
Çatlak tokluğu tayini için geliştirilmiş uyarlanmış halka testine geometrik faktörlerin etkisinin araştırılması.
No full textModified Ring specimens are of the shape of discs having a hole inside and flattened ends. These specimens are used for determination of Mode I fracture toughness. Finite element program, named ABAQUS, is used for numerical modeling for finding stress intensity factors. Varying disc geometries were used for the experiments and numerical modeling in which size of the flat ends, radius of the hole inside, and external radius of the specimen were varied. Experiments were done by using pink Ankara andesite. Effects of internal hole radius, external disc radius and size of the flat ends on both stress intensity factor and fracture toughness were studied. In order to compare the results, fracture tests with semi-circular specimens under three point bending (SCB) were also performed. From a similar previous study, fracture toughness values of gray andesite were recalculated and compared to the fracture toughness values of pink andesite for varying geometrical factors. Size effect studies were performed as well for varying diameter of core specimens.Fracture toughness values of andesite were found to increase with increasing specimen size. Fracture toughness of 100 mm specimens was determined as 1.11±0.07 MPa√m, whereas fracture toughness of 75 mm specimens was 0.96±0.08 MPa√m. 100 mm or larger diameter specimens were suggested for the fracture toughness determination with the modified ring tests.M.S. - Master of Scienc
Seramik Yüzeylerde Lazerle Desen Oluşturma Tekniği Ve Uygulamalar
No full textSeramik Yüzeylerde Lazerle Desen Oluşturma Tekniği ve Uygulamalar by Ceyda Sıkı is an innovative study that examines the impact of technology on the creative process in art and design, specifically focusing on laser technology. The book reveals the new possibilities that computer-aided design (CAD) and manufacturing (CAM) methods, particularly CO2 gas laser machines, offer for ceramic surfaces. This work aims to demonstrate the potential of lasers for creating patterns on unglazed ceramic surfaces in both design and artistic applications. The author emphasises that, unlike traditional decorating methods, lasers can transfer high-resolution vector- or pixel-based graphics with complex geometries onto even relief (textured) surfaces. The applications section details this technique. Forms made from casting slip were treated with various metal oxides (iron, cobalt, etc.) and then subjected to laser thermal processing, resulting in different colour tones. Furthermore, artistic applications were carried out using recyclable terracotta facade panels, addressing a contemporary social theme: "migration policies". The study provides a comprehensive overview of the aesthetic and technical contributions of this innovative method to the field of ceramics, evaluating the advantages of laser technology (speed, flexibility, precision) and its disadvantages (cost, inability to work on glazed surfaces, 3D form limitations)Ceyda Sıkı tarafından kaleme alınan Seramik Yüzeylerde Lazerle Desen Oluşturma Tekniği ve Uygulamalar , sanat ve tasarım alanlarında teknolojinin yaratıcı sürece etkisini lazer teknolojisi özelinde inceleyen yenilikçi bir çalışmadır. Kitap, bilgisayar destekli tasarım (CAD) ve üretim (CAM) yöntemlerinin , özellikle de CO2 gaz lazer makinelerinin, seramik yüzeylerde nasıl yeni imkanlar sunduğunu ortaya koymaktadır. Bu çalışma, lazerin sırsız seramik yüzeylerde desen oluşturma potansiyelini hem tasarım hem de sanatsal uygulama alanlarında göstermeyi amaçlamaktadır. Yazar, geleneksel dekorlama yöntemlerinin aksine, lazerin yüksek çözünürlüklü vektörel veya piksel tabanlı grafikleri karmaşık geometrilerle , hatta rölyefli (kabartmalı) yüzeylere bile aktarabildiğini vurgulamaktadır. Kitabın uygulama bölümünde bu teknik detaylıca ele alınır. Döküm çamurundan üretilmiş formlar üzerine çeşitli metal oksitler (demir, kobalt vb.) uygulanarak lazerle ısıl işlem yapılmış ve farklı renk tonları elde edilmiştir. Ayrıca, geri dönüştürülebilir terracotta cephe kaplama panelleri kullanılarak, "göç politikaları" gibi güncel bir sosyal tema üzerine sanatsal uygulamalar gerçekleştirilmiştir. Çalışma, lazer teknolojisinin avantajlarını (hız, esneklik, hassasiyet) ve dezavantajlarını (maliyet, sırlı yüzeylerde çalışamama, 3D form kısıtlamaları) değerlendirerek, bu yenilikçi yöntemin seramik alanına sunduğu estetik ve teknik katkıları kapsamlı bir şekilde sunmaktadır
Investigating the mediating role of corporate reputation on the relationship between corporate social responsibility and multiple stakeholder outcomes
No full textArıkan, Esra (Dogus Author), Kantur, Deniz (Dogus Author), Maden, Ceyda (Dogus Author), Telci, Emine Eser (Dogus Author)In today’s highly volatile environment, companies strive to leverage the perceptions of their multiple stakeholders more than ever before with the aim to build a sustainable competitive advantage. Accordingly, corporate social responsibility and corporate reputation concepts are of vital importance for both academicians and practitioners, concerning their potential impact on internal and external stakeholders. Recognizing the intensified significance of a multi-stakeholder perspective, the current study attempts to contribute to the literature through examining the mediating role of corporate reputation on the relationship between corporate social responsibility and various outcomes of customers, employees, and investors as the key stakeholders. Based on a reputational ranking of companies conducted by a national magazine since 2001, nine companies were selected from service and manufacturing industries and an online questionnaire was conducted to a multi-stakeholder sample consisting of customers, employees and investors. The results showed that corporate reputation fully mediates the relationship between corporate social responsibility and organizational commitment, employee satisfaction, investor loyalty, purchase intention, and intention to seek employment. On the other hand, there existed partial mediation on the relationship between corporate social responsibility and customer perceived value, customer satisfaction, customer loyalty, customer switching cost, customer commitment, turnover intention, intention to invest, and intention to spread word-of-mouth. The results have important implications for practitioners who seek to manage their relationships with multiple stakeholders through their engagement in corporate social responsibility activities and efforts to enhance their companies’ reputational status
Job resources, engagement, and proactivity: a moderated mediation model
No full textMADEN EYIUSTA, CEYDA/0000-0002-6505-8698Purpose - The purpose of this paper is to investigate the mediating impact of work engagement on the relationship between three developmental job resources (i.e. autonomy, task variety, and feedback) and proactive work behaviors. It also attempted to explore the moderating role of job fit (demands-abilities (D-A) fit and needs-supplies (N-S) fit) in the proposed model. Design/methodology/approach - Data were collected from 225 employees in 20 small and medium-size enterprises in Istanbul, Turkey. Hypotheses were tested using hierarchical multiple regressions and hierarchical moderated regressions. Findings - It was found that engagement mediated the relationships between job autonomy, task variety, and proactive behaviors. Results also revealed that the relationships between autonomy, task variety, and engagement were positive and significant only for the employees with low D-A fit while the positive impact of engagement on proactive behaviors existed only for those employees with high N-S fit. The conditional indirect impact of job resources on proactive behaviors was strongest when the D-A fit was low and the N-S fit was high while this effect was non-significant when the D-A fit was high and the N-S fit was (either) low or high. Research limitations/implications - The generalizability of the findings is limited. Moreover, as the data are cross-sectional, it is not possible to derive causal inferences about the hypothesized relationships. Practical implications-Organizations should provide their employees with more autonomy and task variety to enhance their engagement and proactivity. Moreover, organizations need to consider their employees' level of job fit when they provide certain job resources. Originality/value - This study tests the mediating role of engagement on the relationships between three developmental job resources and proactive behaviors. It also sheds light on the moderating role of job fit in the proposed mediation model.Istanbul Kemerburgaz University Research and Publications Commission [PB014-2013]The author gratefully acknowledges the research support from the Istanbul Kemerburgaz University Research and Publications Commission (Grant No. PB014-2013). The author would also like to thank the anonymous referees of 2015 Academy of Management Meeting for their helpful comments
Spatial Injustice
No full textSpatial (in)justice is characterised as the geography of social (in)justice. The city is a network of ecologies composed of infrastructure, economic ideologies, and wealth. The inequalities that emerge as a by-product of these systems highlight the injustices in London evolving from social, economic and spatial patterns in the form of gentrification. This research positions the London metropolis as a demonstration of political power structures. Derived as a result of neoliberal policies implemented since the late seventies and thus becoming a driver of social class inequality. The relationship between architecture and socio-spatial conditions will be addressed in this research and effect, an architectural intervention will be proposed as a solution for gentrification.Architecture, Urbanism and Building Sciences | Architectural Design Crossover
Smarandache curves according to Sabban frame for Darboux vector of Mannheim partner curve
No full textUnderstanding Born Global Firms in Turkey: A Literature Review
No full textThe main purposes of the study are to present knowledge stock about the profile and barriers of the born global firms in Turkey and provide research agenda. Data are obtained through a systematic literature review comprised of the studies regarding the born global firms in Turkey. The studies chosen for this review are based on primary data. They have been published in both Turkish and English languages and printed in 2010–2020. Also, “Born global,” “marketing,” and “Turkey” are used as keywords for filtering these studies. The major findings indicate that the born global firms have encountered many obstacles such as marketing and procedural barrier. They have also some common features related to entrepreneurship orientation, network connection, proactive approaches, and technological abilities. This study integrates the major findings of previous studies on the subject of the born global firms in Turkey. This integration may be useful for expanding and advancing the knowledge in this field. Therefore, it is expected that it provides a knowledge reserve, starting points, basics and insights for further studies and business applications. In this context, major findings are discussed on the conditions of Turkey and strategic recommendations are presented. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG
The antecedents of organ donation: An investigation into the factors which influence organ donation in Turkey
No full textUslu Güvener, Ceyda (Dogus Author)The history of transplantation is actually a challenging effort to defy illness and death. The success of today' s transplantations is owed to not only the tremendous progress in medicine but also the courage of people in failed transplants. Although the transplant Technologies developed rapidly and the number of patients in need of transplant increased dramatically, the donations for organs did not follow the same trend, so the major obstacle in front of transplantation is the scarcity of organs in many countries including Turkey. Therefore, it is important to understand the reasons of this scarcity in order to fınd solutions for it. The purpose of this research is mainly to identify the factors influencing organ donation in Turkey from a consumer behaviour perspective. It was intended to determine the attitudes toward organ donation and understand their reasons before developing strategies to either change or improve them. The rationale for the research lies in its contribution to understanding from an academic perspective and its applied relevance to consumer behavior theories in donor management. An extensive literature review in the areas of organ transplantation, legislations, different systems of donations worldwide, marketing communications and consumer behavior was completed and their relevance and transferability to Turkey were carefully examined in the light of the primary research fındings . The field research comprised exploratory interviews with five key informants and a survey among 110 individuals. Finally, a set of recomrnendations are offered to improve the donor management facilities of the transplant community. This research, hopefully, will be a reference to those who would like to understand the process of donation from a consumer behavior perspective.Organ nakli çalışmalarının tarihçesi gerçekte insanoğlunun hastalıklara ve ölüme meydan okuma çabasının hikayesidir. Günümüz nakilleri, bugünkü başarıyı tıp bilimindeki olağanüstü ilerlemenin yanı sıra başarısız olan ilk nakil girişimlerine rağmen cesaretini kaybetmeyen kişilere borçludur. Organ nakli teknolojilerinin hızla gelişmesine ve organ nakline ihtiyaç duyan hasta sayısındaki artışa rağmen, organ bağışları aynı oranda artmamıştır ve günümüzde tüm dünyada olduğu gibi Türkiye'de de organ naklinin önündeki asıl ve en önemli sorun bağışlanan organ sayısının azlığıdır. Organ bağışlarını arttırmaya yönelik çözümler üretmek için önce organ bağışlarının neden az olduğunu anlamamız gerekir. Bu çalışmanın amacı, Türkiye' de organ bağışını etkileyen faktörleri belirlemek ve bu faktörleri tüketici davranışı çerçevesinden incelemektir. Organ bağışı hakkındaki tutumları geliştirebilmek veya değiştirebilmek için öncelikle bu tutumları belirlemek ve nedenlerini anlamak başlıca amacımız idi. Bu araştırma temelde verici sayısını arttırmaya yönelik çalışmaların tüketici davranışı teorileri doğrultusunda şekillendirilmesi ve değerlendirilmesine katkıda bulunmayı hedeflemektedir. Organ nakli, organ nakli konusundaki yasalar, dünya genelindeki farklı bağış modelleri ile beraber pazarlama iletişimi ve tüketici davranışı konularında geniş bir kaynak taraması yapılmış ve bunların ülkemize uygunluk ve uyarlanabilirliği saha çalışmasının (5 uzman ile yapılan görüşmeler ve 110 kişiye uygulanan anket) sonuçları ışığında değerlendirilmiştir. Son olarak organ bağışını arttırmak üzere bir takım önerilerde bulunulmuştur. Bu çalışmanın organ bağışı sürecini tüketici davranışı çerçevesinden incelemek ve anlamak isteyenler için iyi bir kaynak olması umulmaktadır.Acknowledgements, i -- Summary, ii -- Özet, iii -- List of Contents, iv -- List of Figures, vii -- List of Tables, viii -- 1. Introduction, 1 -- 1.1. Title, 1 -- 1.2. Rationale Underpinnjng the Research, 1 -- 1.3. Purpose, 1 -- 1.4. Methodology, 2 -- 1.5. Limitations of the Research, 3 -- 1.6. Structure of the Research, 3 -- 2. Organ Transplantation and Donation, 4 -- 2.1. Background for and an Introduction to Transplantation, 4 -- 2.2. Background for and an Intrroduction to Transplantation in Turkey, 12 -- 2.3. History and Development of Transplant Legislation in the World, 14 -- 2.4. History and Development of Transplant Legislation in Turkey, 16 -- 2.5. Ethics and Religion, 20 -- 2.6. Worldwide Donation Systems, 22 -- 2.6.1. Transplant Organ Procurement System in the Unüed States, 26 -- 2.6.2. Transplant Organ Procurement System in Spain, 27 -- 2.6.3. Transplant Organ Procurernent Systern in Iran, 29 -- 2.6.4. Transplant Organ Procurernent Systern in Japan, 31 -- 2.6.5. Transplant Organ Procurement System in Turkey, 32 -- 2.6.5.1. The Akdeniz University Model, 37 -- 2.6.5.2. The Oktar Babuna Case, 40 -- 3. Attitudes and Persuasion toward Organ Transplantation and Donation, 43 -- 3.1. Perception, 43 -- 3.2. Learning, 47 -- 3.3. Motivation, 49 -- 3.4. Involvement, 50 -- 3.5. Values, 52 -- 3.6. Self Concept, 53 -- 3.7. Personality, 53 -- 3.8. Lifestyles, 53 -- 3.9. Attitudes, 55 -- 3.9.1. Functions of Attitudes, 56 -- 3.9.2. Components of Attitudes, 58 -- 3.9.3. Properties of Attitudes, 59 -- 3.9.4. Changing Attitudes through Communication, 60 -- 3.9.5. Strategies to Change Attitudes, 62 -- 3.10. Individual Decision Making, 63 -- 3.11. Family Decision Making, 65 -- 4. Research Methodology, 67 -- 4.1. The Research Problem, 67 -- 4.2. Review of Related Research, 68 -- 4.3. Field Research, 69 -- 4.4. Lirnitations of the Research, 70 -- 5. Analysis and Interpretation of Research Findings, 71 -- 5.1. Attitudes toward Blood Donation, 71 -- 5.2. Behaviour relating to Blood Donation, 71 -- 5.3. Interpretation of Research Results relating to Blood Donation, 72 -- 5.4. Perception of Organ Transplantation, 73 -- 5.5. Perception of Organ Donation, 74 -- 5.6. Attitudes toward Organ Donation, 74 -- 5.7. Behaviour relating to Organ Donation, 76 -- 5.8. Beliefs relating to Organ Donation, 77 -- 5.9. Interpretation of Research Results relating to Organ Donation, 79 -- 5.10. Sources of Information on Organ Transplantation and Donation, 80 -- 5.11. Role of Gender in Attitudes and Behaviour relating to Blood and Organ Donation, 80 -- 5.12. Role of Age in Attitudes and Behaviour relating to Blood and Organ Donation, 82 -- 5.13. Role ofEducation in Attitudes and Behaviour Relating to Blood and Organ Donation, 82 -- 5.14. A Normative Model for Increased Organ Donation, 87 -- 6. Conclusion, 89 -- 7. References, 92 -- 8. Appendices, 99 -- Appendix A. Questionnaire, 99 -- Appendix B. Turkish Transplantation Law no. 2238 and 2594, 101 -- Appendix C. Directive on Organ and Tissue Transplantation Services, 105 -- Appendix D. Directive on National Coordination System of Organ and Tissue Transplantation, 116 -- Appendix E. Decision of 1980/396 of the Supreme Board of Religious Affairs, 134 -- Appendix F. A Collection of News, 138 -- 9. Curriculum Vitae, 15
Kuveyt'te aşiretçilik, vatandaşlık ve devlet oluşumu.
No full textThe thesis explores the relationship, or assumed relationship between nomadic tribalism and the stateless group in Kuwait. While exploring this issue, the thesis also examines state formation and tribalism throughout the history of Kuwait. By exploring what the author calls, "Pan-Tribalism," the thesis also explores assumed cross-border linkages, and perceptions of loyalty, or disloyalty among various groups in Kuwait. The thesis includes research on the history of Kuwait because it reveals early tribal dynamics. The thesis uncovers the roots of certain historical issues and power structures that exist today - as all of this is related to citizenship and statelessness. The thesis takes a close look at the impact of oil on state-formation both due to the mass influx of immigrants that oil wealth caused, as well as the welfare/distributive state policy that emerged afterwards. Both of these issues directly affected citizenship. Additionally, it thus explores internal oil politics rather an international oil politics.M.S. - Master of Scienc
