The numbers in the shaded areas indicate the quantity of studies involved.
Further, there is a large quantity of studies on the existence and multiplicity of solutions in the literature, we refer the readers to [8] [21] and the references therein.
The system considers the design, quality, and quantity of studies as well as the consistency and directness of findings when grading the quality of evidence.
According to this fact, a great quantity of studies [21 25] has been carried out in order to confirm the place where the adsorptions of gas molecules with CNTs are most likely to occur.
A large quantity of studies have been conducted on ballistic impacts of high tensile strength fabrics (Cunniff 1992; Bazhenov 1997; Starratt et al. 2000; Tan et al. 2003; Cheeseman and Bogetti 2003; Duana et al. 2005, 2006b; Nilakantan et al. 2010; Parga-Landa and Hernandez-Olivares 1995; Billon and Robinson 2001; Zheng et al. 2006; Nilakantan et al. 2011).
Ground hardness (representing the scale from very soft to very hard) has been the most cited ground condition related to sports injury (Orchard [2002]), but despite the quantity of studies, the veritable link between ground hardness and injury risk has not been well established.
When considering the large quantity of studies aimed at vortex breakdown control and their relative success, it is clear that decisive progress in this domain will require further basic investigations to clearly elucidate the physics of the phenomenon and to improve the predictive capability.
The quantity of studies on SAHP has increased during the last 40 years.
The first obvious gap was in the quantity of studies on global health education between developed countries and developing countries.
Overall the review identified the thinness of the evidence base in terms of the quantity of studies and their location at the lower end of the evidence scale.
