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Item Effect Of Different Implant Locations And Abutment Types On Stress And Strain Distribution Under Non-Axial Loading: A 3-Dimensional Finite Element Analysis(JOURNAL OF DENTAL SCIENCES, 2024-02-27) Sakar, Didem; Guncu, Mustafa Baris; Arikan, Hale; Muhtarogullari, Mehmet; Aktas, Guliz; Reiss, Natalia; Turkyilmaz, IlserBackground/purpose: Dental implants have been a popular treatment for replacing missing teeth. The purpose of this study was to investigate the impact of engaging (hexagonal) and non -engaging (non -hexagonal) abutments in various six -unit fixed prosthesis on the stress distribution and loading located in the implant neck, implant abutment, and surrounding bone. Materials and methods: Three implants were digitally designed and inserted parallel to each other in edentulous sites of the maxillary right canine, maxillary right central incisor, and maxillary left canine. Titanium base engaging abutments, non -engaging abutments and connecting screws were designed. Five distinct models of 6 -unit fixed dental prosthesis were created, each featuring different combinations of various abutments. Forces (45 -degree angle) were applied to the prosthesis, allowing for the analysis of the stress distribution on the implant neck and abutments, and the maximum and minimum principal stress values on the cortical and trabecular bone. Results: Von Mises stress values and stress distributions located in the implant neck region due to the applied loading forces were analyzed. The overall stress values were highest while employing the hexagonal abutments. The maxillary left canine with a hexagonal abutment (model 5) reported the highest von mises value (64.71 MPa) while the maxillary right canine with a non -hexagonal abutment (model 4) presented lowest von mises value (56.69 MPa). Conclusion: The results suggest that both the various abutment combinations (engaging andItem Formal Yet Ineffective Opposition Coordination Under Competitive Authoritarianism: Nation Alliance In Turkey(THIRD WORLD QUARTERLY, 2024-12) Yavuzyilmaz, Hakan; Esen, BerkPre-electoral opposition coordination is the most effective strategy to counter contemporary forms of autocratisation. While scholars have recently begun to explore the factors that lead to the formation of pre-electoral alliances in competitive authoritarian regimes, the high variation in terms of their composition and effectiveness is generally neglected in the existing scholarship. There is a lack of research on why some inter-party coalitions have limited effectiveness in the electoral arena while others nominate optimal candidates through routinised and transparent procedures and run cohesive campaigns. Through a detailed analysis of the Nation Alliance (2018-2023) in Turkey, we argue that in the context of high regime vulnerability, power asymmetry between alliance partners and a high level of leadership control over candidate nomination in opposition parties hinder the potential effectiveness of formal pre-electoral alliances.Item THIRD WORLD QUARTERLY(THIRD WORLD QUARTERLY, 2024-12) Yavuzyilmaz, Hakan; Esen, BerkPre-electoral opposition coordination is the most effective strategy to counter contemporary forms of autocratisation. While scholars have recently begun to explore the factors that lead to the formation of pre-electoral alliances in competitive authoritarian regimes, the high variation in terms of their composition and effectiveness is generally neglected in the existing scholarship. There is a lack of research on why some inter-party coalitions have limited effectiveness in the electoral arena while others nominate optimal candidates through routinised and transparent procedures and run cohesive campaigns. Through a detailed analysis of the Nation Alliance (2018-2023) in Turkey, we argue that in the context of high regime vulnerability, power asymmetry between alliance partners and a high level of leadership control over candidate nomination in opposition parties hinder the potential effectiveness of formal pre-electoral alliancesItem How Can Prosocial Silence Be Golden? The Roles of Commitment to Learning and Organizational Support(LEARNING ORGANIZATION, 2024-03-12) Kizrak, Meral; Yeloglu, Hakki OkanPurposeDrawing from organizational learning theory, social exchange theory and positive psychology approach, this study aims to examine the relationship between commitment to learning and prosocial silence, as well as the mediating role of perceived organizational support (POS) in this relationship.Design/methodology/approachThe authors used path analysis to examine the relationships between research variables. Data were collected from 275 employees of private sector companies in Turkey through an online survey platform. To test the proposed hypotheses, the authors conducted regression and mediation analyses using the bootstrapping method.FindingsThe results indicate that the organization's commitment to learning positively and significantly impacts employee prosocial silence, and POS partially mediates this relationship.Practical implicationsManagers who aim to promote other-oriented and helping behavior in the organization should understand how prosocial silence can be golden. They should cultivate and model a learning mindset by focusing on strengths instead of weaknesses, reward experimentation and provide employees with timely feedback allowing them to think and reflect on their failures.Originality/valueAlthough the dominant position of previous studies endorses the detrimental sides of organizational silence, less research has focused on employees' prosocial silence behavior and the underlying mechanisms that may explain employees' tendency to remain silent with helpful intent, a gap this research attempts to fill.