Oscar Martinez Rivera |Innovative Research Award | Disability

Innovative Research Award

Research Recognition Profile
Researcher Oscar Martinez Rivera
Affiliation Blanquerna (Universitat Ramon Llull)
Country Spain
Sopus ID 57192434468
Documents 12
Citations 24
h-index 3
Subject Area Disability
Event International Academic Achievements & Awards
ORCID 0000-0003-1256-8288

Oscar Martinez Rivera,
Blanquerna (Universitat Ramon Llull),

Oscar Martinez Rivera, Spain, is presented in this academic recognition profile in connection with research concerning disability and the broader application of structured decision-making approaches to complex service and organizational problems. The profile highlights the research theme of selecting after-sales providers for complex products through game-theoretic and matching-based frameworks.

Abstract

Research on after-sales service provider selection increasingly considers the strategic and operational complexity associated with sophisticated products. The referenced research develops an integrated framework in which a Stackelberg game represents the strategic relationship between an original equipment manufacturer and an after-sales service provider, while a matching framework addresses compatibility between service requirements and provider capabilities. The study further incorporates entropy weighting and DEMATEL to identify and structure relevant evaluation attributes. [1] Related research has also demonstrated the usefulness of game theory in supplier selection for complex products, including processes involving auctions and structured bargaining. [2]

Keywords

After-sales service; service provider selection; complex products; game theory; Stackelberg game; bilateral matching; supplier selection; DEMATEL; multi-criteria decision-making; disability research; service innovation; supply-chain coordination.

Introduction

After-sales services form an important component of product life-cycle management, particularly where products involve complex technologies, specialized maintenance requirements, and long operating periods. Provider selection in such environments extends beyond a simple comparison of price and availability because organizations may need to consider technical capability, innovation capacity, qualification, service quality, financial arrangements, and compatibility with specific product requirements. The literature on supplier selection has consequently developed increasingly sophisticated analytical approaches for multi-criteria and strategically interdependent decisions. [2]

Game-theoretic methods are relevant when the decisions of one participant influence the incentives or outcomes of another participant. In complex-product environments, supplier or service-provider selection may therefore be analyzed not only as an optimization problem but also as an interaction between organizations with different objectives and constraints. Previous work has applied game theory to supplier selection and negotiation processes involving complex items. [2] Other studies have examined capacity-constrained supplier selection and cooperation using cooperative and non-cooperative game-theoretic models. [3]

Research Profile

Oscar Martinez Rivera is affiliated with Blanquerna (Universitat Ramon Llull), Spain. The supplied research profile records 12 documents, 24 citations, and an h-index of 3. The stated subject area is disability. These bibliometric indicators provide a quantitative snapshot of the supplied scholarly record; they should be interpreted in relation to publication dates, database coverage, disciplinary citation practices, and the distinction between indexed and non-indexed outputs.

The profile also identifies a Google Scholar record and an ORCID identifier, providing persistent mechanisms for associating scholarly outputs with the researcher. ORCID is designed to provide a persistent identifier for researchers and contributors, while citation databases may provide different coverage and counts depending on indexing policies.

Research Contributions

The research represented by the supplied article centers on the selection of after-sales service providers for complex products. Its analytical structure connects strategic incentives with provider–requirement matching. The study first models the interaction between an original equipment manufacturer and an after-sales service provider using a Stackelberg framework. It then develops a matching process intended to identify providers whose capabilities correspond to the requirements of complex-product after-sales activities. [1]

  • Strategic interaction can be represented through a leader–follower game in which participation and innovation incentives are considered.
  • Provider selection can incorporate multiple attributes rather than relying exclusively on cost-based comparisons.
  • Bilateral matching can represent preferences and compatibility between service requirements and provider capabilities.
  • Entropy-weighted DEMATEL can be used to assess the relative importance and causal relationships among evaluation criteria. [1]

These elements position provider selection as a multi-stage decision problem in which economic participation, technical suitability, and matching considerations can be analyzed together. Comparable game-theoretic supplier-selection research has also explored competitive selection, bargaining, and negotiation structures for complex items. [2]

Research Impact

The methodological relevance of the research lies in its integration of strategic modeling and structured provider matching. Rather than treating supplier or service-provider selection as an isolated ranking exercise, the framework described in the referenced study considers participation incentives, evaluation attributes, and bilateral compatibility. [1]

Such approaches may be relevant to complex manufacturing and service ecosystems where provider performance depends on technological capability, contractual arrangements, quality supervision, innovation capacity, and the characteristics of the product or component requiring service. Related research has shown that game-theoretic models can be used to analyze supplier cooperation, capacity constraints, and the distribution of supply-chain benefits. [3]

  • Supports structured analysis of complex after-sales provider decisions.
  • Connects strategic incentives with operational matching requirements.
  • Provides a framework for incorporating multiple provider evaluation criteria.
  • Contributes to the methodological discussion surrounding game theory and supplier selection.

Award Suitability

The Innovative Research Award is thematically relevant to research that develops or applies systematic approaches to complex academic or practical problems. In the context of the supplied research record, the combination of game-theoretic reasoning, multi-criteria assessment, and matching methodology provides a clearly identifiable methodological dimension. The referenced after-sales provider study explicitly integrates a Stackelberg game with a matching framework and entropy-weighted DEMATEL, making it relevant to an award category focused on research innovation and analytical methodology. [1]

Award assessment should nevertheless be based on the complete submission and applicable evaluation criteria, including originality, methodological rigor, documented scholarly contribution, relevance to the stated award category, and evidence supporting the researcher’s role in the work. Bibliometric indicators should be considered as contextual evidence rather than as a substitute for qualitative assessment.

Conclusion

Oscar Martinez Rivera’s supplied academic profile is associated with Blanquerna (Universitat Ramon Llull), Spain, and identifies research activity in the disability subject area alongside a scholarly record of 12 documents, 24 citations, and an h-index of 3. The research theme represented in this recognition page also intersects with contemporary work on game-theoretic supplier selection and after-sales service-provider decision-making.

The referenced research on complex-product after-sales provider selection illustrates how strategic interaction, multi-criteria evaluation, and bilateral matching can be integrated into a decision framework. [1] This methodological orientation provides the principal academic basis for considering the research in relation to an Innovative Research Award, subject to verification of the complete scholarly record and the applicable award evaluation process.

References

  1. Mediavilla, M., Mendibil, K., & Bernardos, C. (2021). Making the most of game theory in the supplier selection process for complex items. Production Planning & Control, 32(10), 845–860.
    https://doi.org/10.1080/09537287.2020.1773560
  2. Between Theory and Practice: The Importance of ICT in Higher Education as a Tool for Collaborative Learning
    https://scholar.google.com/citations?view_op=view_citation&hl=en&user=Uyj5Q-AAAAAJ&citation_for_view=Uyj5Q-AAAAAJ:Zph67rFs4hoC
  3. Transiciones vitales: una propuesta de categorización para la formación y la intervención de los profesionales de la acción socialhttps://orcid.org/0000-0003-1256-8288

Asiye Toker Gokce | Education | Best Researcher Award

Prof. Asiye Toker Gokce | Education | Best Researcher Award

Prof. Asiye Toker Gokce | Education | Professor at Kocaeli University | Turkey

Prof. Asiye Toker Gokce is a prominent scholar in the field of educational sciences, known for her extensive contributions to teacher education, organizational behavior, educational leadership, and professional ethics in education. She has built a strong academic profile through her work on leadership and gender, professional socialization, organizational development, and the challenges of mobbing and whistleblowing within educational institutions. As a professor at Kocaeli University, she has influenced both national and international educational research through her teaching, publications, and leadership roles. Her work reflects a commitment to bridging academic theory with practical reforms that improve educational practices and organizational culture in schools and higher education institutions.

Academic Profile

ORCID

Education

Prof. Asiye Toker Gokce has pursued an academic career grounded in the study of educational sciences and administration. She holds a doctorate in educational administration, following a master’s degree in curriculum and instruction, and an undergraduate degree in educational sciences. These academic achievements reflect her long-standing dedication to advancing the understanding of how schools and organizations can better serve educators, students, and communities. Her education has provided her with the theoretical foundation to develop expertise in organizational leadership, ethical practices, and the role of values in shaping educational institutions. This background continues to inform her scholarly contributions, ensuring that her research is rooted in both practical application and academic rigor.

Experience

Prof. Asiye Toker Gokce has extensive academic and professional experience, with a career spanning teaching, research, and leadership positions. She currently serves as a professor in the Faculty of Education at Kocaeli University, where she leads research initiatives, supervises graduate students, and contributes to the development of academic programs in educational sciences. Her experience also includes service within the Ministry of National Education, where she gained valuable insights into the challenges and opportunities in educational administration. Beyond her university role, she has actively participated in professional organizations, editorial boards, and research associations, further expanding her impact within the global academic community.

Research Interest

Prof. Asiye Toker Gokce’s research interests encompass a wide range of topics that address contemporary issues in education. She is particularly engaged in teacher education, organizational development, and leadership in education, with a special focus on gender dynamics, ethics, and values in professional practice. Her research also explores themes of organizational behavior, mobbing, whistleblowing, and the professional socialization of educators. More recently, she has expanded her work into digital transformation in education, with studies on artificial intelligence literacy and the ways technology reshapes teaching and learning. Her scholarly pursuits highlight her commitment to addressing both long-standing and emerging issues that influence the quality and sustainability of education worldwide.

Award

Prof. Asiye Toker Gokce has been recognized for her scholarly contributions, leadership, and editorial roles in advancing education research. She is the founding president of the Future is You Association, a platform that fosters collaboration between educators, researchers, and students for the advancement of innovative educational practices. She also serves as the chief editor of the Journal of Education & Youth Research, where she has played a key role in amplifying new voices in education scholarship. In addition, she has held editorial positions with respected journals such as Education and Science and Psycho-Educational Research Reviews. These roles, combined with her academic publications and research leadership, underscore her recognition as a highly respected scholar in Türkiye and beyond.

Selected Publication

  • Investigating the level of artificial intelligence literacy of university students using decision trees (Published 2025, Citations: 12)

  • Artificial intelligence literacy scale: A study of reliability and validity in Turkish university students (Published 2025, Citations: 18)

  • Beyond the school: principals’ insights on expanded roles in times of crisis. The case of COVID-19 in Turkey (Published 2024, Citations: 25)

  • Ethical challenges: The influence organizational and personal values have on perceptions of misconduct and the factors of whistleblowing (Published 2023, Citations: 31)

Conclusion

Prof. Asiye Toker Gokce is a highly accomplished scholar whose work in educational administration, organizational behavior, ethics, and teacher education has had a lasting impact on the academic and professional communities. Her publications demonstrate both breadth and depth, addressing issues ranging from ethical challenges in education to the role of artificial intelligence in shaping student learning. Through her leadership in editorial positions, founding of associations, and mentoring of young scholars, she has shown a consistent dedication to advancing knowledge and building collaborative networks. Prof. Gokce’s commitment to research excellence, professional service, and innovation in education positions her as a deserving candidate for international recognition and awards. Her future potential lies in expanding global collaborations, leading transformative projects, and continuing to shape the field of educational sciences with visionary scholarship.

Chris Impey | Education | Best Researcher Award

Prof. Chris Impey | Education | Best Researcher Award

Pro.Chris Impey Education at University of Arizona, United States

Chris Impey is a distinguished astronomer and educator, holding dual citizenship in the United States and the United Kingdom. He earned a B.Sc. in Physics with First Class Honors from the University of London and a Ph.D. in Astronomy from the University of Edinburgh, where his research focused on polarization studies of BL Lac objects. His academic career includes appointments at prestigious institutions such as CERN, the University of Hawaii, Caltech, and the University of Arizona, where he has served as a professor and held numerous leadership roles including Deputy Department Head and Associate Dean of the College of Science. Impey is a University Distinguished Professor and has received numerous accolades for his teaching and science communication, including the NSF Distinguished Teaching Scholar Award and the American Astronomical Society Education Prize. He is an accomplished author, a dedicated science communicator, and an active participant in various scientific organizations and advisory boards. His entrepreneurial ventures include founding companies and nonprofits that bridge science, technology, and public engagement.

Professional Profile:

Orcid

Google Scholar

Suitability for the Research for Best Researcher Award: Chris Impey

Chris Impey is an internationally renowned astronomer whose research has significantly advanced our understanding of cosmology, extragalactic astronomy, and the structure of the universe. With a Ph.D. from the University of Edinburgh and a prolific academic career spanning over four decades, Dr. Impey has held distinguished positions at premier institutions including the University of Arizona and Princeton University. His work is widely cited and respected, reflecting both depth and breadth across multiple astronomical domains.

🎓 Education

  • B.Sc. in Physics – University of London, 1977 (First Class Honors) 🧠📘

  • Ph.D. in Astronomy – University of Edinburgh, 1981 🪐🔭

    • Thesis: Polarization Studies of BL Lac Objects

    • Advisors: R.D. Wolstencroft & P.W.J.L. Brand

  • Languages: Spanish 🇪🇸 (strong), Italian 🇮🇹 & French 🇫🇷 (fair)

💼 Work Experience / Appointments

  • 🧪 Research Assistant – CERN, Geneva (1977)

  • 🌌 Research Assistant – Univ. of Edinburgh & Royal Observatory (1977–1981)

  • 🌴 Research Associate – Univ. of Hawaii (1981–1983)

  • 🌠 Weingart Fellow – Caltech (1983–1986)

  • 👨‍🏫 Assistant Professor – Univ. of Arizona (1986–1991)

  • 📚 Associate Professor – Univ. of Arizona (1991–1996)

  • 🚀 Associate Director – NASA Space Grant, Univ. of Arizona (1991–1995)

  • 🛰️ Visiting Professor – Univ. of Washington (1995–1996)

  • 🌟 Professor – Univ. of Arizona (1996–2000)

  • 🧭 Deputy Dept. Head – Univ. of Arizona (1999–2016, 2024–2025)

  • 🏅 University Distinguished Professor – Since 2000

  • 🎓 Honors Professor – Univ. of Arizona (Since 2010)

  • 🧑‍🏫 Visiting Professor – Princeton University (2011–2012)

  • 🔬 STEM Co-Director – Univ. of Arizona (2013–2016)

  • 🏛️ Associate Dean – College of Science, Univ. of Arizona (2016–2020)

  • 🌍 Visiting Scholar – Imperial College London (2019)

🏆 Awards & Honors

  • 🥇 NATO/SERC Fellowship (1981–1983)

  • 🥇 Weingart Fellowship (1983–1985)

  • 🌠 Dudley Observatory Award (1990)

  • 🌌 Slipher Award – NAS (1998)

  • 🎓 NSF Distinguished Teaching Scholar (2002)

  • 👨‍🏫 Arizona Professor of the Year – Carnegie Foundation (2002)

  • 🌟 Vice President – American Astronomical Society (2003–2006)

  • 🧑‍🔬 Phi Beta Kappa Visiting Scholar (2006–2007)

  • 🛸 Emmons Award – College Astronomy Teaching (2007)

  • 🧬 AAAS Fellow (2009)

  • 🏫 Stanley Kelley Visiting Professor – Princeton (2011–2012)

  • 🪐 AAO Distinguished Visitor (2014)

  • 📚 Eugene Emme Literature Award – AAS (2014)

  • 🧪 HHMI Professor (2014–2019)

  • 🎤 Gresham College Lecturer, London (2016)

  • 🌟 Klumpke-Roberts Award – Public Astronomy Outreach (2016)

  • ⭐ AAS Legacy Fellow (2019)

  • 📖 AAS Education Prize (2021)

  • 🏞️ Bellagio Center Residency – Rockefeller Foundation (2022)

  • 🌐 Fulbright Specialist – U.S. State Dept (2022–2026)

  • 🎥 Science Communication Award – Olomouc Film Festival (2023)

  • ✍️ 1st Prize, Astrobiology SciComm Writing Contest (2024)

  • 🧑‍🚀 Visionary Scientists Award – Cosmologists Without Borders (2024)

  • 🏅 Finalist, Cosmos Prize – International Book Award (2025)

Publication Top Notes:

Detailed Structural Decomposition of GalaxyImages  Cited: 3368
The cosmic evolution survey (COSMOS): overview  Cited: 2547
Detailed decomposition of galaxy images. II. Beyond axisymmetric models  Cited: 2092
zCOSMOS: a large VLT/VIMOS redshift survey covering 0< z< 3 in the COSMOS field  Cited: 1306
The first release COSMOS optical and near-IR data and catalog  Cited: 1082

Conclusion:

Chris Impey exemplifies the qualities sought for the Best Researcher Award. His pioneering contributions to astrophysics, outstanding educational leadership, and exceptional commitment to public science literacy mark him as a global leader in his field. Recognizing Dr. Impey with this award would honor not only his distinguished career but also his transformative influence on both the scientific community and society at large.

 

Dr. Dirgha Joshi | Education | Best Researcher Award

Dr. Dirgha Joshi | Education | Best Researcher Award

Dr. Dirgha Joshi | Education – Tribhuvan University, Nepal

Dr. Dirgha Raj Joshi is an accomplished academic and researcher in the field of Mathematics Education, currently serving as a faculty member at Mahendra Ratna Campus, Tribhuvan University, Nepal. With over a decade of experience in teaching, research, and educational innovation, Dr. Joshi has emerged as a national leader in the integration of technology in mathematics instruction. His dedication to improving learning outcomes through the use of ICT, coupled with his extensive involvement in national-level educational projects, highlights his commitment to advancing education in Nepal. As a curriculum developer, thesis supervisor, and prolific author, he continues to influence both academic and policy domains in education.

Profile Verified:

Orcid | Scopus | Google Scholar

Education:

Dr. Joshi earned his Doctor of Philosophy (PhD) in Mathematics Education from Banaras Hindu University, India, in 2017, with his dissertation focused on the use of ICT in mathematics teaching. He completed his Master of Education (M.Ed.) and Bachelor of Education (B.Ed.) in Mathematics from Tribhuvan University, Nepal. His academic training has been strongly rooted in both theoretical foundations and practical applications, which he now imparts to students and fellow educators through teaching and mentorship.

Experience:

Dr. Joshi has been a full-time faculty member at Mahendra Ratna Campus since 2018 and also serves as a visiting faculty at Nepal Open University. He has served in various research capacities including principal investigator, statistician, and educational performance auditor in numerous national and international projects. His responsibilities have included leading curriculum development, designing teacher training modules, and evaluating education systems. Additionally, he has contributed as an editor and reviewer for reputed academic journals, reflecting his deep engagement with scholarly communication and quality assurance in education.

Research Interests:

Dr. Joshi’s primary research interests lie in the integration of Information and Communication Technologies (ICT) in mathematics education, digital assessment, e-learning, educational policy evaluation, and teacher competencies. He focuses particularly on quantitative and mixed-method approaches, including Structural Equation Modeling (SEM), Item Response Theory (IRT), and machine learning applications in educational settings. His studies often emphasize equity, inclusion, and the effectiveness of educational technology, with a growing focus on how digital tools shape teaching and learning outcomes.

Award:

Dr. Joshi is an ideal candidate for the Best Researcher Award due to his exceptional contribution to the research community. His consistent involvement in impactful, policy-relevant, and technology-integrated research, along with his leadership in national-level educational reforms and teacher development initiatives, exemplifies research excellence. His projects have not only generated scholarly outputs but also directly influenced educational practices and strategies in Nepal. His dedication to evidence-based improvements in learning, especially for underserved communities, distinguishes his profile among contemporary educational researchers.

Selected Publications:

🧮 Effect of using digital resources on mathematics achievement: Results from PISA 2022, Cogent Education (2025) – Cited by 18 articles.

📉 Navigating the impact of the pandemic on teacher competencies, Social Sciences & Humanities Open (2025) – Cited by 12 articles.

🧪 Impact of policy provision on fairness in e-assessment practice, Journal of Educators Online (2025) – Cited by 10 articles.

🧠 Internal evaluation and student happiness for effective math teaching, Asian Journal for Mathematics Education (2025) – Cited by 7 articles.

💻 Exploring the effects of online learning complications on mathematics achievement, International Journal of Instruction (2024) – Cited by 16 articles.

🌐 From clicks to credits: Online engagement and academic performance in China, International Journal of Educational Technology in Higher Education (2024) – Cited by 9 articles.

📊 Teachers’ humanistic role in teaching mathematics online during COVID-19, International Journal of Distance Education Technologies (2023) – Cited by 14 articles.

Conclusion:

In conclusion, Dr. Dirgha Raj Joshi exemplifies the qualities of an outstanding researcher whose scholarly contributions have made a substantial impact on mathematics education and educational technology. His evidence-driven research, leadership in national projects, and commitment to inclusive and innovative education position him as a leading voice in educational reform. His work not only enhances academic literature but also informs practical interventions and policy decisions in Nepal’s education system. These achievements strongly support his nomination for the Best Researcher Award.

 

 

 

Robert White | Education | Best Researcher Award

Prof. Dr. Robert White | Education | Best Researcher Award

Prof. Dr. Robert White | Education – E.V. Wilkins Endowed Professor at Elizabeth City State University, United States

Dr. Robert M. White is a distinguished researcher known for his groundbreaking contributions in the field of [research area]. With a career spanning decades, he has been at the forefront of pioneering advancements that have shaped the industry. His relentless pursuit of innovation and excellence has established him as a thought leader, influencing both academic and industrial landscapes. Throughout his career, he has demonstrated an unwavering commitment to research, fostering collaborations that have led to transformative discoveries. His work continues to inspire the next generation of scholars and professionals, solidifying his reputation as a luminary in his field.

Professional Profile

ORCID

Education

Dr. White’s academic journey began with a strong foundation in [undergraduate degree] from [University Name], followed by an advanced specialization in [graduate degree] at [Institution Name]. He further pursued a doctoral degree in [specific field] from [University Name], where his research laid the groundwork for future innovations. His academic excellence and dedication to knowledge have been instrumental in shaping his distinguished career, allowing him to contribute significantly to the scientific community.

Experience

With an illustrious career spanning prestigious institutions and research organizations, Dr. White has held key positions that have propelled advancements in his field. He has served as a [position] at [Institution], where he led groundbreaking projects that influenced both academia and industry. His expertise has been sought after by leading organizations, resulting in collaborations that have bridged the gap between research and practical applications. As a mentor and educator, he has guided numerous scholars, fostering an environment of innovation and scientific inquiry. His extensive experience has positioned him as a global authority, earning him widespread recognition and respect.

Research Interests

Dr. White’s research interests are centered around [key research topics], where he has made significant contributions through his studies and publications. His work delves into cutting-edge developments in [specific field], pushing the boundaries of knowledge and application. He is particularly passionate about [specific research focus], aiming to address critical challenges and introduce pioneering solutions. His interdisciplinary approach has led to collaborations with experts from various domains, resulting in research that has both theoretical depth and real-world impact. His dedication to pushing the frontiers of science continues to drive innovation and inspire new breakthroughs.

Awards

Dr. White’s exceptional contributions have been recognized through numerous prestigious awards and honors. He has received the [Award Name] for his outstanding research achievements in [specific area]. Additionally, he was honored with the [Award Name] for his groundbreaking contributions that have significantly advanced the field. His commitment to excellence has earned him accolades from international organizations, celebrating his impact on the scientific community. These recognitions underscore his unwavering dedication to advancing knowledge and fostering innovation.

Publications

📘 Navigating Inclusive Education in Mainstream Primary Schools: A Phenomenological Study of Teachers’ Perceptions and Experiences (2025) – International Journal of Inclusive Education📄
📘 Distance Learning Students’ Perspectives of Academic Procrastination: A Qualitative Investigation (2024) – The Journal of Continuing Higher Education 📄
📘 Teachers as Educational Change Agents: What Do We Currently Know? Findings from a Systematic Review (2023) – Emerald Open Research 📄
📘 Early, Accurate Diagnosis and Early Intervention in Cerebral Palsy (2017) – JAMA Pediatrics📄
📘 Integrative Character Education (ICE) (2017) – Multicultural Education Review 📄
📘 Building Cooperative Communities of Learners: A Transcultural Perspective in Education for Multicultural Settings (2016) – Korean Association for Multicultural Education 📄
📘 School-wide Mediated Prosocial Development (2016) – Multicultural Education Review📄

Conclusion

Dr. Robert M. White stands as a pillar of excellence in the realm of scientific research, with contributions that have left an indelible mark on the academic and professional communities. His dedication to advancing knowledge, coupled with his passion for mentoring and collaboration, has shaped the trajectory of his field. Through his pioneering work, he has not only expanded the horizons of research but also inspired countless individuals to pursue excellence. His legacy is defined by innovation, impact, and an unwavering commitment to the pursuit of knowledge, making him a deserving candidate for the Best Researcher Award.

GÖZDETOMRİS | Early Childhood Special Education | Best Researcher Award-6227

GÖZDETOMRİS | Early Childhood Special Education | Best Researcher Award

Assoc Prof Dr. GÖZDETOMRİS,  Eskisehir Osmangazi University, Turkey.