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Now showing 1 - 10 of 33
  • Article
    Citation - WoS: 7
    Citation - Scopus: 8
    Solar Energy for the Airport Ground Support Equipment - a Quantitative Study
    (Emerald Group Publishing Ltd, 2023) Yildiz, Melih; Mutlu, Savas; Nagy, Andras; Kale, Utku
    PurposeThis paper aims to evaluate the hypothetical situation in a resembling airport to Esenboga Airport and analyzes the condition of all ground support equipment (GSE) equipment to be supplied by electricity produced by solar panels mounted on the rooftop of the terminal building. The case is discussed using environmental emissions and economic feasibility. The results of the resembling case can be generalized to all airports for the reduction of emissions caused by ground operations of aviation. Design/methodology/approachGSE fleet data which has been prepared by TGS operated in the Esenboga Airport have been used to calculate emissions, and equivalent electricity consumption. A hypothetical solar panel construction on the rooftop of the terminal building and also the electricity production case was analyzed. Based on the calculations, both fuel and electricity use cases are compared by means of emissions and production costs using real data. FindingsThe electricity production and transmission pose a high value of emissions. Thus, electrification of GSE in the airport need a new approach such as producing the electric energy in the site. This research analyzes the case that the electricity is produced on the rooftop of terminal building and consumed by the GSE fleet. The authors discussed that it is both feasible and possible to electrify all the GSE except a shortage of two cold months with high fuel demand by using electric storage options. Practical implicationsGround handling is performed by using GSE which is historically powered by diesel and such internal combustion engines which are well known for their high emission rates. As most of the airports reside in populated areas, GSE emissions need to be evaluated for reduction. However the electric energy could be an alternative for GSE emissions reduction Originality/valueAviation is a system of many subsystems in which the performance of each unit plays a crucial role in the final success of the system. Concerns on environmental protection make the aviation industry focus on reducing emissions produced during operations. Although aircraft emissions are widely discussed in the literature, ground handling systems which are an integral part of the whole aviation system, also need to be studied regarding the environmental issues. Besides, the European Union has set out targets of reducing emissions at the airports during ground operations to zero. This paper discusses the possibility of the target by comparing various scenarios
  • Article
    Factors Affecting Dentists' Intention To Adopt Artificial Intelligence: An Extension of the Unified Theory of Acceptance and Use of Technology (UTAUT) Model
    (Emerald Group Publishing Ltd, 2025) Alqaifi, Faten; Tengilimoglu, Dilaver
    PurposeAdvancements in science and technology have integrated artificial intelligence (AI) into dentistry, improving treatment processes, operational efficiency, and clinical outcomes. However, AI adoption among dentists remains underexplored, hindering progress in oral healthcare. This study aims to identify key barriers to AI adoption and examine factors influencing dentists' intention to use AI.Design/methodology/approachA quantitative cross-sectional approach was employed, utilizing self-administered questionnaires distributed online and across various dental clinics and hospitals in Ankara, Turkey. A total of 440 dentists participated in the study. Data analysis was conducted using SPSS and SmartPLS.FindingsThe study found that AI-anxiety negatively affects the intention to adopt AI in dentistry, showing a medium (almost large) effect that is stronger than other UTAUT factors such as performance expectancy, effort expectancy, and social influence, which demonstrated only small effects. Dentists with higher anxiety about learning and sociotechnical blindness are less likely to adopt AI, while concerns about job replacement and AI-configuration have less but still significant impact.Research limitations/implicationsThese results contribute to the growing body of knowledge on technology adoption in oral healthcare and provide practical implications for technology developers, policymakers, and other stakeholders seeking to facilitate AI integration in dentistry.Originality/valueThis study provides novel insights into AI adoption in dentistry, offering guidance for future development and integration, and addressing a critical research gap in a growing field-particularly in Turkey, where implementation is still in its early stages.
  • Article
    Citation - WoS: 6
    Citation - Scopus: 6
    Effects of Window Proximity on Perceptions of Employees in the Call Center Offices
    (Emerald Group Publishing Ltd, 2020) Yildirim, Kemal; Ozkan, Aysen; Gunes, Elif; Mestan, Ahmet
    Purpose The purpose of this study is to determine the effects of window proximity on perceptions of employees in the call center offices. Design/methodology/approach A semantic differential scale composed of nine bipolar adjectives, four of which dealt with "planning," three of "privacy," while the rest measured "lighting" was applied for evaluation. In total, 92 employees at the TEPE Call Center in the Bilkent District, Ankara, Turkey participated in the research. Findings The results showed that window proximity directly affected the call center employees' perceptions. In addition, a positive approach was even less affected when the location of the workstation was more at the inner part of the workspace. On the contrary, workstations in front of the window were evaluated more positively, presumably because the employees were happy at feeling roomy and by giving them a higher level of privacy, while also minimizing distractions and interruptions. It was also found that call center employees with secondary education responded more positively than higher educated employees. Originality/value This study presents suggestions that would be useful for increasing the working and solution-focused perceptual performance values in call center environments from the new generation of work areas. They should be appropriate for the psychological and physical needs of employees in twenty-first-century communication environments, especially in spatial environments and for the suitability of the technological equipment used.
  • Article
    Citation - WoS: 10
    Citation - Scopus: 17
    Investigation of Employers' Performance Expectations for New It Graduates in Individual and Team Work Settings for Software Development
    (Emerald Group Publishing Ltd, 2018) Akman, Ibrahim; Turhan, Cigdem
    Purpose - In general, software development work environments involve many different tasks and have high demands on efficiency and quality of performance at both individual and team levels, which depend on the competencies of employees. However, the literature does not provide satisfactory evidence as for the characteristics and competencies of individuals. Especially, the employers' expectations of new graduates have not been investigated in detail for different work environments. The purpose of this paper is to examine employers' expectancies regarding technical, personal and educational competencies among IT-graduated employees to provide a comparison between individual and team work settings. Design/methodology/approach - A survey approach was used for this purpose, and the research model was tested using multiple regression. Findings - The results revealed that significant diversity exists in individual and team work settings regarding employers' expectations for new graduates' competencies in terms of adapting to new software development methods and approaches, using time effectively and experience gained in undergraduate projects. Originality/value - The results of this study will yield insight to computer-related departments in curriculum development by providing a comparison between the varying competencies required in individual and team work settings from the employer's perspective. In the long run, the aim is to meet employers' demands of the new graduates' competencies, resulting in better individual and team performances in information technology companies, thereby leading to successful software development.
  • Article
    Design Team Effectiveness and Architects' Personality Types
    (Emerald Group Publishing Ltd, 2025) Alan, Ece; Arditi, David; Gunaydin, Husnu Murat; Akcay, Emre Caner
    PurposeThe personalities of the design team members constitute one of the factors that influence team effectiveness. In this study, 223 members of the "American Institute of Architects" who are employed by the largest architectural design firms in the United States of America were categorized according to their personality types by using "The Enneagram Personality Type Model." Also, the respondents' opinions about eight team effectiveness outcomes were recorded in order to explore the relationship between team members' personality types and team effectiveness outcomes.Design/methodology/approachThe information was collected by a questionnaire where the first part included 144 pairs of statements that were used to identify respondents' personality types. The second part sought designers' opinions about the importance of eight team effectiveness outcomes rated on a Likert scale ranging from 1 to 5. The results were assessed by performing the Kruskal-Wallis test first and Dunn's post-hoc test with Bonferroni adjustment subsequently.FindingsThe findings highlight the significance of personality types in effective design teams. While Type 6 (loyalist and skeptic) and Type 3 (achiever and performer) architects prioritize team effectiveness the most, Type 7 architects (enthusiasts and epicureans) assign the lowest importance. However, the presence of Type 1 (reformist and perfectionist) and Type 8 (challenger and protector) architects within the same design team may involve challenges or conflicts.Originality/valueThe primary contribution of this study is that it is the first study in the construction management literature that utilizes The Enneagram of Personality Test to understand the relationship between team members' personality types and team effectiveness outcomes. This study is of direct relevance to practitioners and could be utilized in design team-building activities.
  • Article
    Citation - Scopus: 1
    An Activity-Based Lessons Learned Model To Support Scheduling Decisions in Construction
    (Emerald Group Publishing Ltd, 2025) Yilmaz, Anil; Akcay, Emre Caner; Dikmen, Irem; Birgonul, M. Talat
    PurposeThe aim of this study is to develop an activity-based lessons-learned model that allows construction companies to capture, store, classify and reuse activity-related lessons learned (LL) from previous projects, thereby increasing the reliability of time estimates in scheduling.Design/methodology/approachScheduling is a knowledge-intensive process that requires the utilization of data and expert opinion elicitation from various levels of an organization in construction projects. This research consists of five successive steps: performing a needs analysis, proposing an activity-based lessons-learned process model, validating the proposed process model, developing a tool to apply the proposed model in a computer environment and testing the applicability of the tool. To implement the proposed model in practice, a web-based tool, namely the Construction Industry Scheduling with Activity-Based Lessons Learned Tool (ConSALL Tool), was developed. Its functionality was evaluated using black-box testing. The tool was then applied in a real construction project.FindingsResults show that ConSALL has the potential to improve scheduling decisions in construction projects by incorporating data and experience from previous projects. Findings from this research can be used to develop similar models and AI tools to foster activity-based learning in other project-based industries as well as the construction industry.Originality/valueThis paper presents an innovative approach to enhancing construction project scheduling by leveraging LL from past projects. The development and application of the ConSALL Tool demonstrate a practical implementation of the proposed model, providing a framework that can be adapted to other industries to improve project planning and execution.
  • Article
    The "Trickle-Across" Phenomenon: Consumption-Mimicking in Emerging Markets in a Stress Environment
    (Emerald Group Publishing Ltd, 2025) Gungordu Belbag, Aybegum; Deligonul, Seyda Z.; Uner, Mehmet Mithat; Cavusgil, S. Tamer
    Purpose - This study conceptualizes a novel framework called the "trickle-across" phenomenon to understand how middle-class consumers in emerging markets adapt their consumer behavior during economic crises. Unlike the trickle-down model based on upward emulation, the study explores how risk and uncertainty drive consumers to mimic their in-group. Design/methodology/approach - The study employs a conceptual review approach, synthesizing the crisis literature on middle-class consumer behavior across emerging markets. It offers four novel propositions to explain the socio-psychological underpinnings of the shift in middle-class consumer behavior. Findings - Under normal, low-anxiety conditions, middle-class consumers seek upward mobility through aspirational consumption and class emulation, referred to as trickle-down theory. However, during crises, heightened risk anxiety triggers a shift from upward emulation to lateral mimicry, where individuals conform to the consumption norms of their immediate social cohort. Socio-cultural influences play a critical role in risk trivialization and adapting to economic hardships. Originality/value - The study proposes the trickle-across phenomenon as a defining pattern of middle-class consumer behavior in emerging markets during crises. It shifts the focus from aspirational models to cohort-based survival strategies and highlights how socio-cultural factors help middle-class consumers adapt to economic hardships and preserve identity. The framework provides new insights for marketers, policymakers, and scholars.
  • Article
    Citation - WoS: 32
    Citation - Scopus: 35
    Mechanical, Thermal, Melt-Flow and Morphological Characterizations of Bentonite-Filled Abs Copolymer
    (Emerald Group Publishing Ltd, 2020) Alhallak, Laylay Mustafa; Tirkes, Seha; Tayfun, Umit
    Purpose This study aims to investigate the mechanical, thermal, melt-flow and morphological behavior of acrylonitrile-butadiene-styrene (ABS)-based composites after bentonite inclusions. Melt mixing is the most preferred production method in industrial scale and basically it has very near processing parameters compared to 3D printing applications. Rheological parameters of ABS and its composites are important for 3D applications. Melt flow behavior of ABS effects the fabrication of 3D printed product at desired levels. Shear thinning and non-Newtonian viscosity characteristics of ABS make viscosity control easier and more flexible for several processing techniques including injection molding, compression molding and 3D printing. Design/methodology/approach ABS copolymer was reinforced with bentonite mineral (BNT) at four different loading ratios of 5%, 10%, 15% and 20%. ABS/BNT composites were fabricated by lab-scale micro-compounder followed by injection molding process. Mechanical, thermo-mechanical, thermal, melt-flow and morphological properties of composites were investigated by tensile, hardness and impact tests, dynamic mechanical analysis (DMA), thermo-gravimetric analysis (TGA), melt flow index (MFI) test and scanning electron microscopy (SEM), respectively. Findings Mechanical tests revealed that tensile strength, elongation and hardness of ABS were enhanced as BNT content increased. Glass transition temperature and storage modulus of ABS exhibited increasing trend with the additions of BNT. However, impact strength values dropped down with BNT inclusion. According to MFI test measurements, BNT incorporation displayed no significant change for MFI value of ABS. Homogeneous dispersion of BNT particles into ABS phase was deduced from SEM micrographs of composites. Loading ratio of 15% BNT was remarked as the most suitable candidate among fabricated ABS-based composites according to findings. Research limitations/implications The advanced mechanical properties and easy processing characteristics are the reasons for usage of ABS as an engineering plastic. Owing to the increase in its usage for 3D printing technology, the ABS became popular in recent years. The utilization of ABS in this technology is in filament form with various colors and dimensions. This is because of its proper rheological features. Practical implications Melt-mixing technique was used as preparation of composites, as this processing method is widely applied in industry. This method is also providing similar processing methodology with 3D printing technology. Originality/value According to the literature survey, to the best of the authors' knowledge, this study is the first research work regarding the melt-flow performance of ABS-based composites to evaluate their 3D printing applications and processability. ABS and BNT containing composites were characterized by tensile, impact and shore hardness tests, DMA, TGA), MFI test and SEM techniques.
  • Article
    Citation - WoS: 14
    Citation - Scopus: 31
    Does a Highly Standardized International Advertising Campaign Contribute To the Enhancement of Destination Image? Evidence From Turkey
    (Emerald Group Publishing Ltd, 2023) Uner, M. Mithat; Karatepe, Osman M.; Cavusgil, S. Tamer; Kucukergin, Kemal Gurkan
    PurposeDoes a highly standardized international advertising campaign enhance destination image? Drawing evidence from Turkey's Home Global Image Campaign, the authors investigate this fundamental question. This would help the authors to understand whether there are significant differences in cognitive and affective image among tourist groups in Europe in a destination where there is a highly standardized international advertising campaign.Design/methodology/approachData collected from British, German, French and Italian tourists through the official Twitter account of the Turkish Ministry of Culture and Tourism (TMCT) were used to carry out the quantitative analysis. Analysis of variance test was performed to assess the differences in nationalities. The Scheffe test was also applied as a post hoc comparison.FindingsCognitive image attributes such as "good value for money," "good climate," "interesting and friendly people," "beautiful scenery and natural attractions," "interesting cultural attractions," "appealing local food (cuisine)" and "hygiene and cleanliness" are found to be less favorable in the perceptions of French tourists than those of British, German and Italian tourists. British, German and Italian tourists perceive Turkey as a more pleasant destination than French tourists. Overall, the findings suggest that a highly standardized international advertising campaign fails to boost the destination image for all nationalities.Practical implicationsThe TMCT officials should use the adaptation strategy in international advertising campaigns since the findings denote that the "one-size-fits all" approach is problematic. The TMCT should support and promote environmental sustainability efforts and green hotel practices to attract more tourists and use them in different communication channels.Originality/valueAssessment of affective and cognitive destination images (differences) is still an unresolved issue in the destination management and marketing literature. It seems that there is no empirical study investigating the cognitive and affective image attributes of a destination based on standardization versus adaptation approaches. This paper makes a contribution to the current literature by demonstrating that using the same image campaign in different markets is a practice that fails to achieve the intended goals.
  • Article
    Citation - WoS: 3
    Citation - Scopus: 3
    Kavaklidere-Ankara: the Formation of a Residential District During the 1950s
    (Emerald Group Publishing Ltd, 2015) Resuloglu, Cilga; Ergut, Elvan Altan; Interior Architecture and Environmental Design
    This paper aims to examine the formation of Kayak Were as a 'modern' residential district during the 1950s. Contemporary urbanization brought about changes in various regions of Ankara, among which Kavaklidere emerged as an important location with features that defined a new stage in the development of the identity of the capital city. The construction of houses in this district from the early 1950s onwards was in accordance with new functional requirements resulting from the needs of the contemporary socio-economic context, and exemplified the relationship between architectural approaches and social developments. In line with the rapid urbanization of Ankara throughout the 1950s, daily life in Kavaklidere was transformed, as experienced in the apartment blocks that were the newly constructed sites of modernization. The contemporary transformation of Kavaklidere was apparently formal and spatial, with the modernist architectural approach of the period, i.e. the so-called International Style, beginning to dominate in the shaping of its changing character. Nonetheless, the transformation was not only architectural but also social: the characteristics of this part of the city were then defined by structures like these apartment blocks, which brought modernist design features, together with modern ways of living, into wider public use and appreciation. The paper discusses how the identity of Kavaklidere as a residential district was formed in the context of the mid-twentieth century, when these new residences emerged as pioneering modernist architectural housing, the product of social change, which housed and hence facilitated the 'modern' lifestyle of that time.