This obituary discusses the contributions of late historian, Rifa'at Abou-El-Haj (1933-2022), to field Ottoman History. It describes influence his scholarship on growing literature early-modern Empire. also references mentorship graduate students and signficance critical approach in field.

The climatic changes that the middle Moulouya region of Morocco has undergone in recent years, demographic growth and development urbanization have led to a significant decrease reserves water can be mobilized for domestic agricultural uses. This deficit, between availability need water, will only increase with increasing needs consuming sectors. main objective is follow physical-chemical evolu...

ranging from wound infections to severe infections such as bacteremia and septicemia. The epidemiology of MRSA in Saudi Arabia has varied from a very low to high rates in different areas of the Kingdom. Madani et al5 in 1998 reported that Baraa T. Al-Haj-Hussein, MSc, FIBMS, Mohammed A. Al-Shehri, BSc, Esam A. Azhar, MSc, PhD, Ibraheem M. Ashankyty, MSEd, PhD, Abimbola O. Osoba, MD (Hons), FRC ...

A graph G is said to have property Pm if it contains no subdivision of Km+1 and no subdivision of Kdm=2e+1;bm=2c+1. Chartrand et al. (J. Combin Theory 10 (1971) 12–41) (see also Problem 6.3 in Jensen and Toft (Graph Coloring Problems, Wiley, New York, 1995) conjectured that the set of vertices (respectively, edges) of any graph with property Pm can be partitioned into m−n+1 subsets such that ea...

With great interest we read the article of Haj-Ali and Marom et al., presenting an extensive three-dimensional mathematical model of the aortic valve and root (Haj-Ali et al., 2012). The development of an accurate model of the aortic valve could provide insight in both the functioning of a healthy valve and several pathological processes involving the aortic valve. As the aortic valve interacts...