[1] Ugbebor, Olabisi O.

‘From the transfer of Technology to Industrial Cooperation: How to meet the expectations of the receiving country.’ A paper presented at the Vth International Conference of Women Engineers and Scientists held in Rouen, France in 1978.

[2] Ugbebor, Olabisi O.

Visiting Scientist, Laboratoire de Calcul des Probabilités, University of Paris VI, Paris, France February 1-May, 1981.

[2] Ugbebor, Olabisi O.

Visiting Fellow, Laboratoire de Calcul des Probabilités, University of Paris VI, Paris, France October 1-December 31, 1981.

[3] UgbeborOlabisi O:

Visiting Fellow, Department of Mathematics, Yale University, New Haven, Connecticut 06520 USA August 1981.

[4] UgbeborOlabisi O.

French Government Fellowship Awardee; Laboraotire de Calcul des Probabilitiés, University of Paris VI, Paris, France from October 1 to December 31, 1988

[5] UgbeborOlabisi O. and Okoroafor A.C.

Lower Asymptotic Behaviour of the sojourn time for a stable process.

Proceedings of the Conference on Contemporary Stochastic Analysis held in Ibadan, Nigeria, October 9-13, 1989, pp. 109-126 Publishers: World Scientific Publishing Co. Pte. Ltd. Singapore. (1991).

[6] UgbeborOlabisi O and Okoroafor A.C.

Upper Rates of Escape for Stable Processes. Proceedings of the Conference on Contemporary Stochastic Analysis held in Ibadan, Nigeria, October 9-13, 1989, pp. 127-147 Publishers: World Scientific Publishing Co. Pte. Ltd. Singapore. (1991)

[7] Ugbebor, Olabisi O.

Application of Fractals in the theory of probability and stochastic processes: A paper presented at the 21^st Conference on Stochastic Processes and their Applications, held in YorkUniversity, Toronto, Canada June 14-19, 1992.

[8] UgbeborOlabisi O.

Invited Participant, African Leadership Forum, on ‘Women and Society’ held at Farm House, Dialogue 28 Obasanjo Farms in Ota, Ogun State, from 3 – 8 December, 1993.

[9] O.O. Ugbebor: Women Mathematicians in Perspectives on Women in Science and Technologyin Nigeria 1994.

[10] O.O. Ugbebor: Application of Stochastic Processes in Economics. A paper presented at a Symposium organized by the African Mathematical Union on Current Research Trendsin Mathematics, Computer Science and Mathematical Physics held at the University of Ibadan, Ibadan, Nigeria, January,7-12, 1994.

[11] E. S. Onah, O. OlabisiUgbebor

Multi-dimensional investment model; A stochastic approach.’ International Conference Organised in Honour of Professor H. O. Tejumola, University of Ibadan, 10-11 July, 1997

[12] ‘Directions in Mathematics’ edited by G.O.S. Ekhaguere and O. O. Ugbebor was launched at the Nigeria Mathematical Society (NMS) Conference, ‘Abeokuta 1999’ held from Sept. 27 to 29, 1999.

[13] UgbeborOlabisi O :

‘Proposer, Course Writer, Supervisor and Lecturer’ at the Foundation Postgraduate Course in Probability Theory and Its Applications organized by the National Mathematical Center, Abuja, 2000

[14] UgbeborOlabisi O:

Rapporteur – First National Mathematical Sciences Summit and Annual Lecture organized by National Mathematical Centre Abuja, July 26-27, 2000.

[15] UgbeborOlabisi O.

Mathematics – The Language of the New Millennium Implication for Women Education – ALead Paper delivered at EKO 2000, at the 37^th Mathematical Association of Nigeria Conference, held in Lagos, Nigeria from 28^th August – 2^nd September, 2000

[16] UgbeborOlabisi O. Onah, E. S. and Ojowu, O.:

‘An Empirical Stochastic Model of Stock Price Changes’. Paper presented/delivered at the Annual National Conference of Nigerian Mathematical Society held in Zaria, 10-13 April, 2001.

[17] Olabisi O. Ugbebor:

Course Lecturer, (ROC-PSP) Research Oriented Course in Probability and Stochastic Processes, organized by the National Mathematical Centre, Abuja, November 11-23, 2001.

[18] UgbeborOlabisi O:

Invited Speaker, International Workshop on Mathematics for Development in Africa, South of the Sahara, jointly organized by the International Science Programme, Uppsala University, Sweden; Abdus Salaam International Centre for Theoretical Physics, Trieste, Italy; Third World Academy of Science et al. held at Arusha, The United Republic of Tanzania, 19-21 November, 2001.

[19] UgbeborOlabisi O

Invited Speaker, Second Oyo State National Conference of the Mathematical Association of Nigeria (MAN), Oyo State Wing held at Loyola College, Ibadan , from 11 – 15 March, 2002.

[20] UgbeborOlabisi O:

Appointment as External Examiner, Department of Industrial Mathematics/Statistics in the Faculty of Applied Natural Sciences Ebonyi State University for the 2001/2002. Session.

[21] UgbeborOlabisi O:

Appointed External Examiner for Higher Degree Examination in the Federal University of Technology Minna in the Department of Mathematics & Computer Science, 2003/2004 Session.

[22] UgbeborOlabisi O:

Awarded the University of Ibadan Postgraduate School Conference Grant for Postgraduate teachers in 2004 to attend the International Conference of ICMCS in Lagos.

[23] UgbeborOlabisi O:

‘A Mathematical Model of the Foreign Exchange Market for the Determination, of Convergence and (of the naira) eventual Convertibility vis-à-vis the dollar’. Paper delivered at the International Conference on Some Contemporary Application of the Mathematical and Computer Sciences to Development Problem ICMCS, Lagos 8 – 11 February, 2004.

[24] UgbeborOlabisi O & O. Olabusoye.

Testing the Purchasing Power Parity Hypothesis for the Nigerian Foreign Exchange Market. Paper delivered at the African Econometrics Conference in Cape Town, South Africa, held June 30- July, 4, 2004.

[25] UgbeborOlabisi O. O.

Awarded the University of Ibadan Postgraduate School Overseas Conference Grant for Postgraduate teachers to attend the London Mathematical Society Conference in 2005, Isigned the register as Reciprocity Member(effectives Sept. 2005) in London Mathematical Society.

[26] UgbeborOlabisi O and Rufus A. Jokotola.

‘A Random Walk Model of Nigerian Naira – US Dollar Exchange Rates’ Paper delivered at the ICMCS International Conference held at CovenantUniversity, Ota, Nigeria 19 – 23 June, 2006.

[27] UgbeborOlabisi O. and Akeem A. Ganiyu.

‘Martingales associated with Random walk for foreign exchange determination. A paper presented at the 26^th Annual Conference of the Nigerian Mathematical Society (NMS) held at the Federal University of Technology, Akure from Tuesday May 15^th to Saturday May 19^th, 2007.

[28] UgbeborOlabisi O.

Resource Person and Team Leader 2007 Open Learning Initiative Faculty Workshops at Carnegie-Mellon University Pittsburgh, Pennsylvania, USA from June 19 to 21, 2007.

[29] O.O Ugbebor and P.O.K. Aiyelo:

Mathematical model of ecological disturbances in the oil rich Niger Delta region of Nigeria.

A paper presented at the 27^th Annual Conference of the Nigerian Mathematical Society held at the University of Port-Harcourt, Port-Harcourt 27^th– 30^th May, 2008.

[30] UgbeborOlabisi O:

Team Leader at the 16^th International Mathematics Competition Budapest, Hungary 25 July – 30 July 2009.

[31] UgbeborOlabisi O.

‘Raising The Standard of Performance at all Levels of Mathematics - a Must for Scientific and Technological Development’, A lead paper presented at the 46^thConference of the Mathematical Association of Nigeria (MAN) held at the University of Ibadan from 30^th August to 4^th September, 2009.

[32] O.O. Ugbebor: ‘Difficulties Encountered in Objective Testing for Mathematics at the

Postgraduate Level (2010)’. A paper presented at Agbelekawe2010, an International Conference organized by the Distance Learning Centre, University of Ibadan.

[33] O.O. Ugbebor: ‘The Analysis Of Networks In Manufacturing Systems’. A paper presented at theNational Mathematical Society Conference (2011).

[34] O.O. Ugbebor: ‘Strategies For Eradicating Campus Cultism From The Angle Of Parents And Social Values (2012)’ A paper presented at the third national workshop on eradication of campus cultism in collaboration with the Federal Ministry of Education held in Abuja, Nigeria from Monday 7^th May to Tuesday 8^th May 2012.

[35] O.O. Ugbebor (2013): “Transfer of Financial Assets via Markov Chains Model”. A paper presented at the Centre for Economic and Allied Research (CEAR) Workshop on Thursday, November 28, 2013.