Sultan Ali Mohammed Salem

Faculty member

Associate Professor
College of Science and Arts
mathematics

 

Working in the field of probability and mathematical statistics


Qualifications

Academic qualifications: Obtained:
1) Associate Professor degree - Hodeidah University - College of Education - Department of Mathematics - in 2007 AD.
2) Ph.D in Mathematics/Statistics: College of Computer Science and Mathematics, University of Mosul, Iraq, October 2000.
3) Master’s in Mathematics/Statistics: College of Education, University of Mosul, Iraq, January 1997.
4) Bachelor’s degree in Mathematics: College of Education, Sana’a University: Yemen, August 1989 AD.

Experiences

Practical experiences:
1)PHD study in the Department of Mathematics - College of Computer Science and Mathematics - University of Mosul - Iraq from 1997/1998 to 1999/2000 AD, and the subject of the study is (Dynamic hierarchical models and Bayesian analysis).
2) Master’s study in the Department of Mathematics, College of Education, University of Mosul, Iraq, from 1994/1995 to 1996/1997 AD, and the subject of the study is (Estimating “spatial” spatial covariance components).
3) Bachelor’s degree study in the Department of Mathematics - College of Education - Sana’a University - Yemen from 1985/1986 AD until 1988/1989 AD.
4) Mathematics teacher at the secondary level (Abdel Nasser Secondary School - Amanat Al-Asimah) from 1989/1990 until 1990/1991.
5) Teaching assistant in the Department of Mathematics - College of Education in Hodeidah from 1990/1991 until 1993/1994 AD.
6) Faculty member (Assistant Professor and Associate Professor) at Hodeidah University - Yemen from October 2000 AD until October 2010 AD.
7) Faculty member (Associate Professor) at Najran University - Saudi Arabia from October 2010 until now.
 

Specialties and Skills

There are different fields that he performs, including: the field of teaching - the field of scientific research - the field of technical skills - the field of participation in department and college committees - public lectures - participation in academic events - ethics and professional commitment - community service.

Training Courses

He participated in a number of training courses and workshops specialized in developing academic and professional performance. He also attended scientific conferences that contributed to expanding his knowledge and deepening his experience in the fields of scientific research and university teaching.

Scientific Research

Research since 2020 AD:
1-  Kalman filter of dynamic hierarchical model. European Scientific Journal August 2020 edition Vol. 16, No.24 ISSN:1857-7881(Print) e – ISSN 1857-7431, 2020.
2- Modeling of production process with inspection policy in terms of time. nternational Journal of Mathematics and Statistics Research, Vol.9.Issue.3, 2021.
3- Assessing the size of shadow economic activity in Malaysia based on the modified money demand model approach with structural break. Asian Journal of Economic Modelling. DOI: 10.55493/5009.v12i4.5220 Vol. 12, No. 4, 216-236. 2024 AESS Publications. All Rights Reserved.
4- Investigating the effect of the shadow economy on Malaysia’s economic growth: Insight from a nonlinear perspective. Asian Economic and Financial Review. DOI: 10.55493/5002.v15i2.5290 Vol. 15, No. 2, 182-195. © 2025 AESS Publications. All Rights Reserved.
5- The Role of the Underground Economy in the Oil Wealth-Growth Nexus: New Insight from Nigeria. Organizations and Markets in Emerging Economies. DOI: https://doi.org/10.15388/omee.2025.16.8. 2025, vol. 16, no. 1(32), pp. 193–21

Supervising academic theses: Supervise the following master’s theses, in the Department of Mathematics - College of Science and Arts - Najran University - Saudi Arabia
 (1) Kalman filter of some dynamic linear models.
 (2)Dynamic hierarchical linear models with Kalman's filter.
 (3) Bayesian inference and dynamic models with modelling of production processes.
(4)Bayesian filtering and smoothing of first order dynamic linear model

Teaching courses:
Teaching Experience: He taught the following courses:
Bachelor’s Degree: Introduction to Statistics and Probability, Probability Theory,  Mathematical Statistics, Statistics and Probability, Probability and Engineering Statistics, Applied Statistics, Econometrics, Descriptive Statistics, Analytical Statistics, Complex Variable Theory, Linear Algebra and its Applications,  Calculus (3), Calculus  (2), Finite Mathematics, Pure Mathematics (1), Pure Mathematics (2), Mathematics for Administrative Sciences,  Introduction to Integral Calculus.
Master: Probability Theory, Mathematical Statistics, Advanced Probability Theory, Selected Topics in Probability.

Office Hours

 

  8-9 9-10 10-11 11-12 12-1 1-2
الأحد
Sunday
           
الاثنين
Monday
           
الثلاثاء
Tuesday
           
الأربعاء
Wednesday
           
الخميس
Thursday