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Analysis of Student Learning in Differential Equations Learning Area Based on Various Variables: The Case of Turkey and Ghana
(Karbey Yayıncılık Eğitim ve Danışmanlık Hiz. San. Tic. Ltd. Şti. Kesit Yayınları, 2021) İnan, Cemil; Pişkin, Erhan; Bonyah, Ebenezer; İnan, Cemil
Development of mathematical models for problems experienced in study areas is important for improvement in almost all scientific fields. The solution of a problem requires development of a mathematical equation (or a mathematical model) based on the properties of the problem in certain disciplines. Such an equation is generally a function with one unknown and an equation that includes the derivative (or differential) of this function. The equation which contains a function and its finite derivatives, is called a differential equation (Pisces 2018). The present study aimed to analyze the learning of college students in differential functions based on various variables in Turkey and that of Ghana. The study was conducted in two faculties of a public university (Engineering and Education Faculties) for a year in differential equations course on 300 students’ exams and applications for Turkey. The achievements of those students were analyzed based on the problems experienced by the students, the conceptual comprehension and operational comprehension, reasoning skills, misconceptions, transition between representations, and basic mathematics knowledge variables. A similar study was carried out in a faculty of technical education in Ghana with 300 students’ examination and application and their results were analyzed as it was done in the case of Turkey. The present study for the two countries adopted a descriptive approach based on screening models. Since it was possible to reach the whole population in the study for the two countries, the complete census method was used. The main difficulties experienced by the students in each country were determined as follows: inability to conduct the operations or to conduct incorrect operations due to the lack of basic mathematical knowledge, student focus on operational comprehension instead of conceptual comprehension, inability or indecision of the students in establishing the correlation between the algebraic and graphic representations of the differential equation in transfers between representations, misconception that dependent variable should always be identified by y and independent variable should always be identified by x (this could be due to a teacher habit), and although dx-2xydy2yey2dy could be easily solved by linearization, students’ preference to attempt to find the integral multiplier, leading to calculation errors. These difficulties were similar in within the two countries as if they were taught by same instructors. It can be argued that the achievements increased in the two groups of students when the applications that would eliminate these difficulties were conducted in the following topics, however a comprehensive study should be initiated to eliminate the lack of basic mathematical knowledge, and it would even be beneficial to study the OSYM selection system. It could be suggested that calculus as a concept should be taken serious to build the two groups of students competencies in differential equations.
Approximation To Generalized Taylor Derivatives By Integral Operator Families
(MSU J. of Sci, 2017) AKIN, Lutfi; Zeren, Yusuf
This theory has important applications of polynomial approximation in various areas of functional analysis, Fourier analysis, application mathematic, operator theory, in the field generalized derivatives and numerical solutions of differential and integral equations, etc. The study of approximation theory is a well-established area of research which deals with the problem of approximating a function f by means of a sequence n L of positive linear operators. This theory is very important for mathematical world. Nowadays, many mathematicians are working in this field.
Can entrepreneurial knowledge boost the entrepreneurial intent of French students? The mediation role of behavioral antecedents
(Emerald, 2022) Alkhalaf, Taher; Durrah, Omar; Almohammad, Dawoud; Ahmed, Faisal
Purpose: Entrepreneurial knowledge occupies a significant place in policy discourse and practice, especially in developed economies. This study aims to examine the effect of entrepreneurial knowledge on the components of entrepreneurial intent of undergraduate students. The authors seek to decipher a deeper understanding of their orientation for engaging in new ventures. In addition, we analyze the mediating role of behavioral antecedents between entrepreneurial knowledge and entrepreneurial intent. Design/methodology/approach: The authors collected the primary data of 400 undergraduate students from French universities and used structural equation modeling through Smart PLS software for testing several pertinent hypotheses. Findings: The study’s results revealed that entrepreneurial knowledge negatively affects students’ attitudes in choosing entrepreneurship in favor of a corporate job. In addition, entrepreneurial knowledge does not affect the social norms and self-efficacy that shape entrepreneurial intent. Interestingly, our study also revealed no mediating role between entrepreneurial knowledge and students’ self-efficacy. Originality/value: The findings of this study will contribute to the academic discourse on the role of entrepreneurial knowledge and its potential effect in promoting entrepreneurship. Furthermore, this study has policy implications and solicits developing entrepreneurship programs to enhance entrepreneurial intent among young people.
A Characterization of Approximation of Hardy Operators in VLS
(Celal Bayar University Journal of Science, 2018) AKIN, Lutfi
Variable exponent spaces and Hardy operator space have played an important role in recent harmonic analysis because they have an interesting norm including both local and global properties. The variable exponent Lebesgue spaces are of interest for their applications to modeling problems in physics, and to the study of variational integrals and partial differential equations with non-standard growth conditions. This studies also has been stimulated by problems of elasticity, fluid dynamics, calculus of variations, and differential equations with non-standard growth conditions. In this study, we will discuss a characterization of approximation of Hardy operators in variable Lebesgue spaces.
A Characterization of Boundedness of Fractional Maximal Operator with Variable Kernel on Herz-Morrey Spaces
(2020) Akın, Lütfi
A considerable number of research has been carried out on the generalized Lebesgue spaces Lp(x), Sobolev spaces W1,p(x) and Herz spaces. In this paper, we will discuss a characterization of boundedness of the fractional maximal operator with variable kernel on Herz-Morrey spaces.
A Characterization of Homogeneous Fractional Hardy-Type Integrals on Variable Exponent Spaces
(Conference Proceedings of Science and Technology, 2019) Akın, Lütfi
In this study, we establish boundedness of homogeneous fractional Hardy-type integral on variable exponent spaces.
A Characterization of Some Class Nonlinear Eigenvalue Problem in VELS
(Sakarya University Journal of Science, 2019) AKIN, Lutfi
In last the quarter century, many researchers have been interested by the theory of the variable exponent function space and its applications. We well-know that a normal mode analysis of a vibrating mechanical or electrical system gives rise to an eigenvalue problem. We will investigate a characterization of some class nonlinear eigenvalue problem in variable exponent Lebesgue spaces.
COMPACTIFICATION OF WEIGHTED HARDY OPERATOR IN VARIABLE EXPONENT LEBESGUES SPACES
(Asian Journal of Mathematics and Computer Research, 2017) Mamedov, Ferman; Zeren, Yusuf; AKIN, Lutfi
We study necessity and sufficiency conditions for the weighted Hardy operator   x v w H f x v x f t w t dt 0 , ( ) ( ) ( ) ( ) to be compact from Lp(.) (0, l) to Lq(.) (0,l) .
Compactness of Fractional Maximal Operator in Weighted and Variable Exponent Spaces
(Erzincan University Journal of Science and Technology, 2019) AKIN, Lutfi
We have studied necessary and sufficienty conditions for the weighted fractional maximal operator to be compactness from ) , 0( (.) l Lp to ) , 0( (.) l Lq .
CONSUMER CREDITS AND MACHINE LEARNING
(Eğitim yayınevi, 2023) Aksu, Mervan
The fusion of consumer credit analysis with machine learning algorithms has revolutionized credit risk assessment, providing banks with more efficient and reliable methods for evaluating creditworthiness. By leveraging these advanced techniques, banks can enhance their risk management practices, reduce the ratio of non-performing loans, and ultimately contribute to their profitability and stability in the financial market. As machine learning continues to evolve, it is likely to play an increasingly critical role in the financial sector and beyond.
Corporate Governance and Performance of Islamic Banks: A Comparative Study of Banks in Malaysia and the GCC Countries
(Anemon Muş Alparslan Üniversitesi Sosyal Bilimler Dergisi, 2020) Önal, Mehmet Maksud
This paper contributes to the literature by discussing the relationship between corporate governance and performance of Islamic banks operating in Malaysia and the Gulf Cooperation Council (GCC) countries. The effects of board independence and board size on performance are examined by using relevant analyses. The paper finds that there was a significant and negative relationship between ROA and board independence and it was also a significant predictor of ROE. Malaysian banks were performed better than the GCC banks by comparing the average ROE and ROA and they also had more independent directors. According to the univariate test results, Malaysian banks were performed better than the GCC banks in terms of ROE and Tobin`s Q.
Determinant of the Export Performance of Small and Medium Sized Companies: Case of the Turkish SMEs
(University of Leicester, School of Management, 2013) Altun, İslam
Small and medium-sized companies have gained more popularity and attention in the international business market. Thus, exporting activity becomes one of the main aims for SMEs in order to attain more benefit from international business. In this perspective, influencing factors of the export performance has gained attention in business literature. The aim of this study is to explain the determinant of export performance of small and medium sized companies, focusing on internal influencing factors; managerial level factors, firm level factors and external influencing factors. The previous studies have attempted to investigate the relations between internal and external factor of companies and export performance. This research based on literature review and case study which is two Turkish small and medium sized companies. Data of this research has been collected through semi-structured interview. According to companies’ data export performance of the companies strongly related with internal and external factors. In addition, this research showed that some factors directly affects the export performance, some other factors have indirectly affects the export performance although a few factor have no influence on export performance of the companies. Due to the companies which are run in different business sectors and exporting to the different countries, different factors have different influence on export performance of the companies.
Determinants of the economic adaptation of refugees: the case of Midyat Camp
(2021) Aljasem, Abdulnaser; Abedtalas, Musallam; Lokman Toprak, Wissam Aldien Aloklah, Abdulhamid Alawak, Şehmus Aykol; Toprak, Lokman
In the context of the bottom-up approach to development and poverty reduction, this is the first study to use the Sustainable Livelihood Approach (SLA), with a slight adjustment, to study the economic adaptation of refugees within camps. The object- ive of this study was to explore the factors affecting the economic adaptation of refugees in Midyat Refugee Camp in Turkey. The study used a focus group to help design the questionnaire that was subsequently used to collect data from a sample of 393 households in Midyat Camp. The data was used to estimate a Structural Equations Model. The findings indicated that the most important factors in deter- mining refugees’ economic adaptation are human capital, social capital and institutions.
Determinants of The Export Performance of SMEs: Comparative Analysis of Turkish SMEs Exporting to Middle East and European Regions
(International Journal of Business and Social Science, 2017) Altun, İslam
This study aims to explain determinants of the export performance of Turkish SMEs by focusing on what factors impact the performance of firms mainly exporting to Europe and Middle East. As methodology, comperative analysis will be followed. Further, qualitative method, inductive approach based on a case study and interview data collection method were conducted in order to have reliable data to provide robust analysis. The case study data were collected from 20 small and medium sized Turkish companies exporting to Europe and Middle East regarding their international business activity in order to get direct information by addressing open ended questions to the firm owners. As concluded from interview data, internal factors in the firm level and managerial levels have positive impact on export activities of companies exporting to Europe. Moreover, technological and political environment as external factors have positive effect on export performance of firms as well, whereas economic, social and cultural environment may have some negative effects on the firms. In the firm analysis that export to Middle East countries, some of firm level and managerial level factors have positive effects on the performance while some of them effects it negatively. Additionally, political environment and firms’ technological capabilities have negative effect on export of firms. Unlike the firms exporting European region, social and cultural environment favourably effect export performance of Turkish SMEs that export to Middle East countries.
Determination of Factors Affecting Consumers’ Bulgur Consumption Preferences
(Anemon Muş Alparslan Üniversitesi Sosyal Bilimler Dergisi, 2022) Kayaoğlu, Ahmet; Gülmez, Yavuz Selim
This research aims to determine the factors affecting the bulgur consumption preferences of consumers. The research data were obtained by using a face-to-face survey technique from 401 individuals living in the city center of Mardin by convenience sampling. In the analysis of the data, explanatory factor analysis and descriptive statistics were used. According to the research findings, the participants consider food quality, marketing activities, physical properties, and taste-price factors in their bulgur consumption preferences. According to the demographic characteristics of the participants, bulgur consumption preferences differ significantly. These; Taste-price according to a different gender, occupation, and the number of individuals in the household, food quality according to different marital status groups, food quality and marketing activities according to different education levels, marketing activities according to different household income groups. There was no significant difference between the groups according to the age variable.
The Effect of the Covıd-19 Pandemic on the Budgeting Process in Companies: Implementation in a Manufacturing Company That Actı̇vate in ICIa 500
(2022) GUTNU, Mehmet Murat
Purpose: This work was conducted in one of the 500 largest companies in Turkey to study the impact of the Covıd-19 pandemic on the budgeting process in companies. Methodology: The interview technique was preferred as the research method. Data were collected through oneon-one interviews with the budget manager. Findings: As a result of the study, it was found that the company acted in accordance with general budgeting principles, invested in technologies to professionalize the budgeting process, and benefited from modern budgeting methods. The Covıd-19 pandemic process required constant revisions and flexibility in the budgeting process. Originality/Value: The study contributes to the literature by examining the impact of Covid-19 on the budgeting process.
Entrepreneurship in Crisis: The Determinants of Syrian Refugees' Entrepreneurial Intentions in Turkey
(Sustainability, 2021) Dawoud, Almohammad; Omar, Durrah; Taher, Alkhalaf; Mohamad, Rashid
This study aims to identify the determinants of entrepreneurial intentions among Syrian refugees in Turkey. The research, based on planned behaviour theory, focused on the impact of the refugee context on those intentions and thus on the attitudes and behaviour of entrepreneurs. The study is based on the positivist paradigm, and a quantitative methodology was used to collect data. We preferred the method of convenience sampling and chose 122 entrepreneurial projects at the beginning of 2020. The results show that psychological characteristics have no significant impact. Motivation, conviction, and independence are not sufficient conditions for the choice of an entrepreneurial profession. Self-standards do not affect the entrepreneurial intentions of refugees, as support from family and friends may not be sufficient reason to engage in an entrepreneurial project. However, entrepreneurship emerged among the refugees distinguished by perseverance, efficiency, a spirit of innovation, prior experience, adequate perceptions of barriers, and having the resources needed to implement projects. The refugee context has a negative emotional impact on entrepreneurship for reasons related to conditions of instability, language difficulties, the need for capital to invest, and a lack of entrepreneurial knowledge. The research findings can be used to support the role of humanitarian organisations, UN agencies, and host governments in developing a deeper understanding of entrepreneurial intentions in the refugee context. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Evidence from Turkish and Syrian People for the Measurement Invariance of the CBBE Scale and Clues for the Distribution Strategies of the Brands
(Journal of Distribution Science, 2023) Kayaoğlu, Ahmet; Gülmez, Yavuz Selim
Purpose: This research aims to test the measurement invariance of the consumer-based brand equity scale on Turkish and Syrian university students who live together but are from different cultural groups. Research design, data, and methodology: The consumer-based brand equity scale developed by Buil et al. (2008) is applied to the participants. In testing the consumer-based brand equity scale, the Netflix brand, which is considered well-known by both cultural groups, is preferred. It is thought that choosing an internationally recognized brand would facilitate the conduct of this research. Structural invariance and measurement invariance are tested using structural equation modeling. Results: The consumer-based brand equity scale has measurement invariance on Turkish and Syrian university students. Therefore, it has been revealed that the responses of participants from both cultures regarding the Netflix brand are comparable. Conclusion: The findings of the study provide clues for practitioners to review their distribution strategies. As a matter of fact, cultural studies conducted in different countries are common. Still, the originality of this study is ensured by the profile of participants who live in the same country but come from different countries
Evidence from Turkish and Syrian People for the Measurement Invariance of the CBBE Scale and Clues for the Distribution Strategies of the Brands
(Korea Distribution Science Association, 2023)
Purpose: This research aims to test the measurement invariance of the consumer-based brand equity scale on Turkish and Syrian university students who live together but are from different cultural groups. Research design, data, and methodology: The consumer-based brand equity scale developed by Buil et al. (2008) is applied to the participants. In testing the consumer-based brand equity scale, the Netflix brand, which is considered well-known by both cultural groups, is preferred. It is thought that choosing an internationally recognized brand would facilitate the conduct of this research. Structural invariance and measurement invariance are tested using structural equation modeling. Results: The consumer-based brand equity scale has measurement invariance on Turkish and Syrian university students. Therefore, it has been revealed that the responses of participants from both cultures regarding the Netflix brand are comparable. Conclusion: The findings of the study provide clues for practitioners to review their distribution strategies. As a matter of fact, cultural studies conducted in different countries are common. Still, the originality of this study is ensured by the profile of participants who live in the same country but come from different countries.
Industry 4.0 and sustainable business models: An intercontinental sample
(John Wiley and Sons Ltd, 2023) Kılıç, Cumali; Atilla, Gaye
In the rapidly evolving contemporary business landscape, the Industry 4.0 revolution has emerged as an immense and transformative force, fundamentally reshaping industries and presenting significant challenges to prevailing business models. As technology components continued to evolve in response to this revolution, it became increasingly evident that understanding the multifaceted implications of these changes for organizational sustainability is of paramount importance. The overarching goal of this research was to elucidate the intricate interplay between Industry 4.0 technologies and organizational sustainability. To achieve this objective, we conducted a comprehensive exploration of real-world instances where companies boldly embraced Industry 4.0 technologies, subjecting their specific practices and processes to thorough examination. This methodological approach yielded a wealth of invaluable insights into the practical implications of Industry 4.0 on organizational sustainability, effectively bridging the gap between theory and practice. This research underscores the urgent need to provide businesses and decision-makers with insights of paramount significance. The findings of the study aim to serve as a guiding compass for organizations, offering clarity on potential benefits and challenges associated with Industry 4.0 adoption. Notably, within the scope study, the utilization of semi-structured interview technique added a unique dimension, enabling in-depth insights. Interviews were conducted with individuals from diverse nations across different continents, thoughtfully selected based on predefined criteria, setting this research apart in terms of both the sample's size and the remarkable diversity within the participant profile. This diversity enriched the research findings by encompassing various perspectives and experiences, significantly enhancing the depth and breadth of the study's insights.

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