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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.Item Effects of Repair Techniques and Scarf Angles on Mechanical Performance of Composite Materials(2023) Karaduman, Beyza Naz; Elaldi, Faruk; https://orcid.org/0000-0003-0592-6868; AAG-5060-2019Today, composite materials, which have the advantage of strength and lightness ratio, have gained great importance especially in the aeronautical industry and automotive sector. With widespread use of composites, the repair of damages caused by external factors has also become an important research topic. In this study, the effects of different repair methods and scarf angles on the mechanical performance of the material were investigated. Scarf angles of 20 degrees, 30 degrees, and 45 degrees have been selected in order not to create too many scarf areas and to find a quick repair method. Also, a comparison of single scarf and double scarf repair was made to find a more robust solution. The samples were produced from carbon fiber prepreg and with the [45/0/90/0/45](2s) fiber orientation. Tensile, compression, and flexural (3-point bending) tests according to ASTM standards were applied to composite samples prepared with single scarf and double scarf repair configurations at different angles. The stress-strain curves obtained as a result of the tests showed that the specimens repaired at 20 degrees had the highest strength. In addition, it has been determined that the samples repaired with double scarf withstand higher forces compared to the samples repaired with single scarf at the same angle.Item Determining Prospective Teachers' Self-Efficacy Perception on Scientific Skills Via Pair-Wise Comparison Method(2014) Kart, Arife; Gelbal, SelahattinThe aim of this study is to determine the factors which are considered to be effective in self efficacy perceptions relating to scientific research skills of preservice teachers by using scalling through the pair-wise comparison methods. The study was carried out in fall 2012-2013 at Ankara University and Baskent University. The data of the study was collected from 180 preservice teachers who took scientific research methods course. According to the data obtained from the study, preservice teachers relating to scientific research skills, have the highest level of competence in self-efficacy perceptions in terms of data collection and reporting features, although they have the lowest competence in the analysis of data and identifying variables.Item Investigating The Effects of Poverty on Health and Quality of Life in Poor People Aged 65 and Over in Etimesgut District, Ankara(2014) Yilmaz, Fikriye; Celik, Cansu; Numanoglu Tekin, Rukiye; https://orcid.org/0000-0002-4884-3803; AAZ-4775-2020Introduction: The purpose of this research was to examine the effects of poverty on health and quality of life of poor people aged 65 and over in Etimesgut District, Ankara. Materials and Method: A questionnaire was administered to 116 people over the age of 65 who were deemed a priority group for assistance by the Etimesgut Social Assistance and Solidarity Foundation in Ankara. The questionnaire comprised questions related to socio-demographic characteristics, health status and health care utilization of elderly people, along with the World Health Organization Quality of Life Instrument-Older Adults Module. Research data were evaluated using the Chi-Square Test, Independent Samples T Test, One-Way Analysis of Variance, Mann-Whitney U Test and Kruskal-Wallis Test. Results: The average monthly income of the elderly participants was 168.94 +/- 54.67 Turkish liras and they lived completely under the poverty line determined for Turkey. However, it was found that women, illiterate participants and those receiving the old age pension were poorer, and of those whose income was below average, more delayed/did not seek help when they were ill. Statistical analysis revealed that total quality of life scores of participants aged 65-74 and literate participants were higher; the "social participation" scores of participants whose income was below average and those received an old-age pension were lower. Conclusion: Poverty has negative effects on the health status, health care utilization and quality of life of elderly people.Item In COVID-19 Health Messaging, Loss Framing Increases Anxiety with Little-to-No Concomitant Benefits: Experimental Evidence from 84 Countries(2022) Sarioguz, Eyluel; Karaarslan, Cemre; 36185503The COVID-19 pandemic (and its aftermath) highlights a critical need to communicate health information effectively to the global public. Given that subtle differences in information framing can have meaningful effects on behavior, behavioral science research highlights a pressing question: Is it more effective to frame COVID-19 health messages in terms of potential losses (e.g., "If you do not practice these steps, you can endanger yourself and others") or potential gains (e.g., "If you practice these steps, you can protect yourself and others")? Collecting data in 48 languages from 15,929 participants in 84 countries, we experimentally tested the effects of message framing on COVID-19-related judgments, intentions, and feelings. Loss- (vs. gain-) framed messages increased self-reported anxiety among participants cross-nationally with little-to-no impact on policy attitudes, behavioral intentions, or information seeking relevant to pandemic risks. These results were consistent across 84 countries, three variations of the message framing wording, and 560 data processing and analytic choices. Thus, results provide an empirical answer to a global communication question and highlight the emotional toll of loss-framed messages. Critically, this work demonstrates the importance of considering unintended affective consequences when evaluating nudge-style interventions.Item Rethinking Principles of School Mathematics during the COVID-19 Pandemic: A Multiple-Case Study on Higher Education Courses Related to Teaching Mathematics(2021) Yilmaz, Aysenur; Kostur, MerveThe study was carried out with prospective teachers (PTs) in Primary School Teaching Program in a private university (n=43) and Middle School Mathematics Teaching program in a public university (n=46). In this paper, multiple-case study was adopted to explore PTs' opinions and to reveal the differences between two universities in terms of taking a mathematics education course through online teaching when the COVID-19 pandemic was very first appeared. The content of the course was based on the principles of school mathematics which were put forth by National Council of Teachers of Mathematics [NCTM]. Hence, the principles were used as the themes in the data analysis. For this purpose, a survey was used to explore the advantages and the challenges faced in online teaching from the PTs' perspective. The analysis of the data showed that the PTs at both universities had both positive and opposing views towards online mathematics education course as mandated by the pandemic. Besides, the technology principle in NCTM was found to be a principle in which the other principles were organized and applied according to it. PTs' reflections on the learning and teaching principles in practice were at the forefront. The reflections regarding the assessment and the equity principle were not among the principles that were frequently mentioned. Discussion on and suggestions for overcoming the challenges were elaborated on.Item Relationship Between Exercise Perception With Physical Activity Level, Body Awareness, and Illness Cognition in Renal Transplant Patients: A Pilot Study(2019) Tigli, Ayca; Soy, Ebru Hatice Ayvazoglu; Aytar, Aydan; Moray, Gokhan; Haberal, Mehmet; https://orcid.org/0000-0002-0993-9917; https://orcid.org/0000-0003-2498-7287; https://orcid.org/0000-0002-3462-7632; 30777573; AAC-5566-2019; HIR-3735-2022; AAE-1041-2021; AAJ-8097-2021Objectives: Transplantation offers better quality of life and long-term survival benefits. Further knowledge is needed regarding exercise in daily life of transplant recipients. Here, we investigated the relationship between exercise perception and physical activity level, body awareness, and illness cognition in renal transplant patients. Materials and Methods: Our study included 53 renal transplant recipients (Standardized Mini-Mental Test score = 26.35 +/- 1.36; age = 41.11 +/- 13.52 year, body mass index = 25.96 +/- 5.26 kg/m(2), elapsed time after transplant = 3.68 +/- 1.53 year). Perceived benefits and barriers to exercise, physical activity level, body awareness, and illness cognition were assessed with the Exercise Benefits/Barriers Scale, International Physical Activity Questionnaire, Body Awareness Questionnaire, and Patient Illness Perception Questionnaire, respectively. Correlations were established with Spearman test for nonparametric data, with regression analysis used to find determinants of physical activity levels. Results: We observed correlations between physical activity level and perceived benefits and barriers to exercise. There was a positive relationship between body awareness and perceived benefits and barriers to exercise and also illness cognition, with significant correlation between perceived benefits and barriers to exercise and illness cognition (P < .05). Perceived benefits and barriers to exercise (P = .006, R = 0.373, R2 = 0.139, beta = 0.373, t = 2.867, F = 8.22) were determining factors for physical activity level. Conclusions: Psychologic and physical factors, including negative emotions and body dissatisfaction, are risk factors for poor quality of life. Although it is important to increase quality of life, tools to enhance body awareness and to develop strategies to alter motor behaviors in daily living activities are needed. Treatment and assessment strategies on body awareness and illness perception should be considered, with emphasis on the importance of physical activity posttransplant.