- Ruzgar, Bahadtin; “Examining the Structure of Funds by Mixture Experiments Method in Private Pension Funds”, Journal of The Faculty of Economic and Administrative Science, Suleyman Demirel University, Issue 13, Volume 1, 111-131, Isparta, Turkey, 2008.

- Ruzgar, Bahadtin, “Scheduling Order and Delivery Times for Computer Companies”, International Journal of Mathematics and Computers in Simulation, Issue 3, Volume 1, ISSN 1998-0159, 2007, 249-254, http://www.naun.org.

- Ruzgar, Bahadtin; Ruzgar, N. S., “Classification of the Insurance Sector with Logistic Regression”, International Journal of Mathematical Models and Methods in Applied Sciences, Issue 3, Volume 1, ISSN 1998-0140, 2007, 168-174, http://www.naun.org.

- Ruzgar, Bahadtin; Ruzgar, N. S., “Mathematical Modeling of Multiple Intelligence Theory with Bayesian Theorem”, International Journal of Mathematical Models and Methods in Applied Sciences, Issue 3, Volume 1, ISSN 1998-0140, 2007, 175-181, http://www.naun.org.

- Ruzgar, Bahadtin; Kale, Ismet; “The Use of ARCH and GARCH Models for Forecasting Volatility”, The Journal of Social Science Institute, Kocaeli University, Kocaeli, Issue 14, Volume 2, 78-109, 2007.

- Ruzgar, Bahadtin; Ruzgar, N. S., “Evaluation of Company Performance by Simulation”, WSEAS Transactions on Systems, Issue 4, Volume 6, ISSN 1109-2777, April 2007, 863-868, http://www.wseas.org.

- Rüzgar, Bahadtin, “Sharing Knowledge by Using Educational Technologies” The Turkish Online Journal of Educational Technology, (International Electronic Journal), Volume: 4, Issue:3, Article:16, July 2005.

--Ruzgar, Bahadtin; Ruzgar, Nursel S., “A Statistical Research on Traffic Accidents and Results in Turkey”, Journal of Celal Bayar University, The Faculty of Economic and Administrative Science: Management and Economy, 335-358, No: 5, Celal Bayar University, Manisa, Turkey, 1999.

--Ruzgar, Nursel; Ruzgar, Bahadtin, “Discrete Event Simulation Model for a Complicated System”, The Journal of Social Science Institute: Oneri, Marmara University, No: 12, Vol: II, 151-157, Istanbul, Turkey, June 1999.

  - Ruzgar, Nursel S.; Ruzgar, Bahadtin, “The Development of Networks and Comparison of Simulation Languages” , Journal of  The Faculty of Economic and Administrative Science, Marmara University, No: 1, Vol: XV, 567-584, Turkey, Istanbul,1999.

- Unsal, Fahri M.; Ruzgar, Bahadtin, "Teaching Pricing Theory Using Spreadsheet Packages”, The Journal of Contemporary Management, No. 7, 256-263, Istanbul, Turkey, August 1994.

- Ruzgar, Bahadtin,  “Study on some Functions defined by using Gamma and Beta Distributions as a Probability Density Functions” , Journal of  The Research and Application Center of  Statistics and Economics, Marmara University, No: 1, 265-274, Istanbul, Turkey, April 1994.

- Ruzgar, Bahadtin,  “Finding the first Moments of  Bingham Distribution by Asymptotic Expansions ”, Journal of  The Research and Application Center of  Statistics and Economics, Marmara University, No: 1, pp. 275-282, Istanbul, Turkey, April 1994.

- Ruzgar, Bahadtin, “Study on a Continuous Structure Model as a Probability Density Function”, Journal of The Faculty of Economic and Administrative Science, Marmara University, No: 1-2, 20-24, Istanbul, Turkey, 1992.

- Yarız, Erol; Ruzgar, Bahadtin, “Finding Numerical Values According to Parameters of Gamma Distribution”, Journal of The Faculty of Economic and Administrative Science, Marmara University, No: 1-2, Vol: V, 427-435, Istanbul, Turkey, 1988.

Papers (accepted but not published yet)

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Projects

- Tez, Mujgan; Ruzgar, Bahadtin; Yıldız, Nilgun; “Affects of Backward Counting Devices on Traffic Security”, Istanbul Metropolitan Municipality, Control and Transport Industry and Trade Corporation, Istanbul, Turkey, 2004.

- Isgoren, Erkan; Candan, Cevza; Isgoren, Nuriye; Ruzgar, Bahadtin; Yuksek, Metin; “Examining Profiles of Textile Companies in Turkey”, Istanbul Textile and Apparel Exporter Associations (ITKIB), Istanbul, Turkey, 2002.

Working Papers

- “Application of Fuzzy Logic on Insurance and Finance”

- “Classification of Pension Funds in Turkey”

- “Time Series Solutions of Pension Funds in Turkey” with   Nursel Selver Ruzgar

Presentations

International

- Ruzgar, Nursel S.; Unsal, Fahri; Ruzgar, Bahadtin, “Predicting Bankruptcies Using Rough Set Approach: The Case of Turkish Banks”, American Conference on Applied Mathematics (MATH '08), Recent Advances on Applied Mathematics, March 24-26, p.367-372, Harvard, Massachusetts, USA, 2008.

- Ruzgar, Bahadtin; Ruzgar, Nursel S., “Loan Payment Prediction Using Rough Sets”, American Conference on Applied Mathematics (MATH '08), Recent Advances on Applied Mathematics, March 24-26, p.124-129, Harvard, Massachusetts, USA, 2008.

- Soylu, Ehan; Ruzgar, Bahadtin; Soylu, Meral, “Seasonal Dynamics and Spatial Distribution of Dactylogyrus Crucifer Wagener, 1857 on The Gills of Roach (Rutilus rutilus L.) From Lake Sapanca, Turkey ”,  7th International Symposium on Fish Parasites, Parassitologia, Sep. 24-28, p.104, Viterbo, Italy, 2007.

- Ruzgar, Bahadtin, “Order and Delivery Times Simulation”, 9th WSEAS International Conference on Automatic Control, Modelling and Simulation (ACMOS '07), 156-160., http://www.wseas.org/ conferences/2007/istanbul/acmos, Istanbul, Turkey, May 27-29, 2007.

- Ruzgar, Bahadtin; Ruzgar, Nursel S., “Modeling Of Multiple Intelligence Theory With Bayes Theorem”, 9th WSEAS International Conference on Automatic Control, Modelling and Simulation (ACMOS '07), 46-51 , http://www.wseas.org/conferences/2007/istanbul/acmos, Istanbul, Turkey, May 27-29, 2007.

- Ruzgar, Bahadtin; Ruzgar, Nursel S., “Classification of the Insurance Sector with Logistic Regression”, 9th WSEAS International Conference on Automatic Control, Modelling and Simulation (ACMOS '07), 52-57, http://www.wseas.org/conferences/2007/istanbul/acmos, Istanbul, Turkey, May 27-29, 2007.

- Ruzgar, Bahadtin; Ruzgar, Nursel S., “Measuring Company Performance by Simulation”, The 5th WSEAS International Conference On System Science and Simulation in Engineering (ICOSSE'06), 42-46, Tenerife, Canary Islands, Spain, December 16-18, 2006.

- Ruzgar, Bahadtin, “Viewpoint of Students on Educational Technologies”, 5^th International Educational Technology Conference, 957-962, Sakarya University, Sakarya, Turkey, September 21-23, 2005.

- Unsal, Fahri M.; Ruzgar, Nursel S.; Ruzgar, Bahadtin, “A Comparative Empirical Study Of College Students On Their Attitudes Towards Online File Sharing, Current Practices And Future Plans”, Sixteenth International Conference, Association For Global Business, Vol. 16, Paper 41, Cancun, Mexico, November 18 – 21, 2004

- Ruzgar, Bahadtin, “Sharing Information by Using Educational Technologies in Education”, IV^th International Educational Technology Symposium, 124-129, Vol:I, Sakarya University, Sakarya, Turkey, November 25-26, 2004.

- Ruzgar, Bahadtin; Guney, Irfan, “Energy Potentials and Agricultural Size of Thrace in Turkey”, International Conference on Energy Efficiency and Agricultural Engineering, EE&AE 2004, 176-184 , Angel Kunchev University of Rousse, Rousse, Bulgaria, June 3-5, 2004.

- Ruzgar, Bahadtin; Temiz, Ismail, “Permanence of the Knowledge of Applied, Visual, and Classical Lectures in Technology Education”, Second International Conference on Educational Technology in Cultural Context, 27-36, University of Joensuu, Joensuu, Finland, September 1-2, 2003.

- Ruzgar, Bahadtin, “The Application of Fuzzy Modeling in Health Insurance”, 5th. EURO/INFORMS Joint International Conference: New Opportunities for Operations Research, Istanbul, Turkish Operational Research Society and Bosporus University, Turkey, July 6-10, 2003.

- Ruzgar, Bahadtin, “A Research on the Reasons of Mathematics Anxiety of the Students at the Science, Social, and Technical Sciences Departments of the Universities in Turkey”, International Conference on Innovation in Higher Education, Kiev, Ukraine, 2003.

- Ruzgar, Nursel S.; Ruzgar, Bahadtin, “A Research on Place of Project Planning in System Solution and Its Necessity in Education”, International Conference on Innovation in Higher Education, Kiev, Ukraine, 2003.

- Boynak, Ferdi; Ruzgar, Bahadtin, “E-Survey Application for Evaluation of Curriculum”, IIIrd International Educational Technology Conference and Fair, Gazimagusa, 796-802, Eastern Mediterranean University, Northern Cyprus, May, 28-30, 2003.

- Ruzgar, Bahadtin, “Research on the Reasons of Mathematical Anxieties in Technology Education”, IIIrd International Educational Technology Conference and Fair, Gazimagusa, 952-957, Eastern Mediterranean University, Northern Cyprus, May, 28-30, 2003.

- Ruzgar, Bahadtin; Temiz, Ismail, “Comparison of Collaborative and Traditional Learning Methods in Technology Education”, IIIrd International Educational Technology Conference and Fair, Gazimagusa, 958-966, Eastern Mediterranean University, Northern Cyprus, May, 28-30, 2003.

- Ruzgar, Bahadtin, “Research on Usage of Mathematical Softwares for Mathematics Education in Universities”, II International Educational Technology Conference and Fair, Sakarya University, Sakarya, Turkey, October 16-18, 2002.

- Isgoren, Erkan; Ruzgar, Bahadtin; Isgoren, Nuriye, “Technological Necessities and Solutions of International Service Training in Textile Sector”, II International Educational Technology Conference and Fair, Sakarya University, Sakarya, Turkey, October 16-18, 2002.

National

- Ruzgar, Bahadtin; Sevinc, Alper, “Investigation of Private Pension Companies’ Web Pages with E-Commerge Approach”, 9^th Academic Informatics 2007 Conference, Paper No: 168, Dumlupinar University, Kutahya, Turkey, January 31- February 2, 2007.

- Ruzgar, Bahadtin, “Researh on Mathematical Backgrounds of Higher Education Students”, XIV. National Education Conference, 1001-1006, Pamukkale University, Education Faculty, Denizli, Turkey, September 28-30, 2005.

- Ruzgar, Bahadtin, “Modeling of Private Pension Funds with Multivariate Regression”, Ist National Insurance Symposium, Association of Insurance and Reinsurance Companies of Turkey, Istanbul, Turkey, May 24, 2005.

- Ruzgar, Nursel; Ruzgar, Bahadtin, “Evaluation Of Investments With Fuzzy Set Theory Approach”, 4^th Statistics Conference, 89-94, Antalya, Turkey, May 8-12, 2005.

- Ruzgar, Bahadtin; Kaleagası, Merve, “Alternative Approaches for Proposing Private Pension Companies to Customers by Using Information Technologies”, 7^th Academic Informatics 2005 Conference, Paper No: 34, Gaziantep University, Gaziantep, Turkey, February 2-4, 2005.

- Ruzgar, Bahadtin, “Internet Tendencies of University Students”, 6^th Academic Informatics 2004 Conference, Paper No: 16, Karadeniz Technical University, Trabzon, Turkey, February 11-13, 2004.

- Ruzgar, Bahadtin; Bayrım, Ilker, “Private Pension Applications in Turkey, Developed Countries and European Union”,   II Traditional Finance Symposium,120-134,  Marmara University, Banking and Insurance Institute & Banking and Insurance School, Istanbul, Turkey, December 11, 2003.

- Candan, Cevza; Isgoren, Erkan;  Isgoren, Nuriye; Ruzgar, Bahadtin; Yuksek, Metin, “Research on the Viewpoint of Quality Culture of Textile Companies”, II Quality Symposium,204-211, Dokuz Eylul University, Izmir, Turkey, May 28-30, 2003.

- Isgoren, Erkan; Candan, Cevza; Isgoren, Nuriye; Ruzgar, Bahadtin; Yuksek, Metin, “Evaluation of Technical Manpower of Textile Sector for Employers”, XII Education Congress, 220-227, Gazi University, Education Institute, Antalya, Turkey, October 15-18, 2003.

- Ruzgar, Bahadtin, “A Research on Place of Project Planning in System Solution and an Application, Information Technologies Congress, 226-228, Pamukkale University, Denizli, Turkey, May 1-4, 2003.

- Ruzgar, Bahadtin, “Fears in Mathematics Education”, 1st  Learning and Teaching Symposium in years of 2000, 62-63, Marmara University, Ataturk Education Faculty, Istanbul, Turkey, May 29-31, 2002.

Teaching Experience

Undergraduate Level

General Mathematics 1, General Mathematics 2, Management Information Systems and Communication, Mathematics of Finance, Commercial and Financial Mathematics.

Graduate Level

Mathematical Modeling, Quantitative Methods, Multivariate Statistical Analysis 1, Multivariate Statistical Analysis 2, Mathematics of Finance, Simulation Modeling.

Professional Affiliations

- Mathematics Association of Turkey

- Statistic Association of Turkey

- Operation Research Society of Turkey

- Informatics Association of Turkey

- Association of Econometrics

- Association of Village Institutes for New Generation

Attended Programmes and Courses

1993-1994      Attended ELS Programme at Cornell University, Ithaca, N.Y., USA.

1993-1994    Attended Stochastic Process, Applied Mathematics and Statistics and Probability  graduate courses at Cornell University in Spring Term, Ithaca, N.Y., USA.

1985            Attended Summer Courses about Probabilita and Statistica Matematica in Perugia, Italy.