Education: 

Visiting Scholar Africa-US Initiative, Mathematical Biosciences Institute, The Ohio State University, 2009-2010
Ph.D.  Cadi Ayyad University, Morocco, 2009
M.S.   Chouaib Doukkali University, Morocco, 2003
B.S.     Ibn Zohr University, Morocco, 2000

Research Interests:

Mathematical Biology, Population Dynamics, Differential and Difference Equations. The main interest is on the development and applications of mathematics, statistics and simulations to models of systems in biology, epidemiology and ecology.

Selected Publications:

• Najat Ziyadi (2023) A discrete-time nutrients-phytoplankton-oysters mathematical model of a bay ecosystem, Journal of Biological Dynamics, 17:1, DOI: 10.1080/17513758.2023.2242720
• Abdul-Aziz Yakubu and Najat Ziyadi, “Strong Allee effect and basins of attraction in a discrete‐time zoonotic infectious disease model”, Natural Resource Modeling, 35(2022), e12310, https://doi.org/10.1111/nrm.1231024  
• Abdul-Aziz Yakubu and Najat Ziyadi, “A Discrete-Time Anthrax Model In Human and Herbivore Populations”, Natural Resource Modeling, 31(2018), e12192. https://doi.org/10.1111/nrm.12192 
• Najat Ziyadi, “A Male-Female Mathematical Model of Human Papillomavirus (HPV) in African American Population”, Mathematical Biosciences and Engineering, 14(2017), pp. 339--358.
• Najat Ziyadi, Kelton Clark, Chunlei Fan and Asamoah Nkwanta, “Local and Global Sensitivity Analysis of a Nutrients-Phytoplankton-Oysters Mathematical Model of a Bay Ecosystem”, International Journal of Biomathematics and Systems Biology, 2(2016).
• Najat Ziyadi and Abdul-Aziz Yakubu, “Local and Global Sensitivity Analysis in a Discrete-Time SEIS Epidemic Model”, Advances in Dynamical Systems and Applications (ADSA), 11(2016), pp. 15–33.
• Najat Ziyadi, “Local and Global Sensitivity Analysis of R0 in a Male and Female Human Papillomavirus (HPV) Epidemic Model of Moroccans”.  International Journal of Evolution Equations, 9(2014), pp. 337-356.  
• Najat Ziyadi and Abdul-Aziz Yakubu, “Predator-induced and mating limitation-induced Allee Effects in a discrete-time SIMS epidemic model”, Computers and Mathematics with Applications, 66(2013), pp. 2196-2210, http://dx.doi.org/10.1016/j.camwa.2013.08.002 
• Avner Friedman, Najat Ziyadi and Khalid Boushaba, “A model of drug resistance with infection by health care workers”, Mathematical Biosciences and Engineering, 7 (2010), pp. 779 – 792.