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The authors' aim is to provide breast surgeons' perspectives on the relative importance of the criteria for choosing an appropriate surgery method between mastectomy (total removal of a breast) and breast-conserving surgery (removal of a breast cancer tumor and some of the normal tissue that surrounds it) for women with breast cancer by using the multicriteria decision-making method (MCDM). The Analytic Hierarchy Process (AHP), the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), and Vise Kriterijumska Optimizacija I Kompromisno Resenje (VIKOR) methods are utilized. A decision hierarchy is set with a goal, criteria, and alternatives. We developed our model based on three main criteria, tumor-related, patient-related, and post-operative process-related factors and nineteen sub-criteria, as well as two alternatives, mastectomy and breast-conserving surgery (BCS). An online questionnaire was sent to the breast surgeons; we showed that the most important criteria are post-operative process-related factors, especially the demand for esthetic appearance based on 39 breast surgeons. Conversely, the least significant criteria are tumor-related factors. Furthermore, breast-conserving surgery is selected as the most appropriate surgery method for breast cancer patients using the AHP, TOPSIS, and VIKOR. [ABSTRACT FROM AUTHOR]

In recent times, the usage of cryptocurrencies has become remarkably widespread in e-commerce applications. This study aims to explain the factors affecting cryptocurrencies by proposing an extended technology acceptance model (TAM) consisting of perceived ease of use, perceived usefulness, trust, social influence, social support, religious belief, and intention to use. A web-based survey was conducted to collect data from individuals who had never previously used cryptocurrencies and data were analyzed via employing partial least square structural equation modelling (PLS-SEM) with SmartPLS software. According to the results, the relationships based on early TAM were validated. Additionally, trust, social influence, and social support have direct effects on the intention to use. Contrary to expectations, religious belief has no influence on trust and intention to use. This study could draw the attention of researchers, developers, and marketers in cryptocurrency to understand the dynamics of potential customers. Findings of this study highlight the pressing need for policymakers in Turkiye to prioritize ease of use, perceived usefulness, and, most importantly, trust within the evolving landscape of cryptocurrency systems. [ABSTRACT FROM AUTHOR]

This paper studies the relationships between competitive strategies, innovation, and firm performance within the context of Turkish manufacturing companies. The data were collected from top management of the firms via Computer Assistant Telephone Interviewing method. One hundred and forty manufacturing firms operating in various sectors including textile, automotive supply, computer and electronics provide the basis for this empirical research. In order to test our model, we employ structural equation modelling using partial least squares. The results show that competitive strategies such as cost-leadership and differentiation can lead to innovation, which, in turn, increase firm performance. Managers implement cost-leadership and differentiation strategies to take part in competitive market conditions; however, they should put additional importance on innovation that plays a significant role as a bridge between competitive strategies and firm performance. [ABSTRACT FROM AUTHOR]