The article Experimental study on effects of drilling parameters on respirable dust production during roof bolting operations, analyze the effect of drilling control parameters as well as looking at various ways of reducing respirable dust when d...Mine-Safety-and-Health:-Respirable-Dust- …

Marijuana has been illegalized in the United States for the past well over eight decades. However, a drug has experienced a fair share of resistance on its illegality within the United States and beyond (Bonnie, Whitebread, and Farnsworth, 100). A...A-proposal-on-why-marijuana-should-be-legalized-in-Arizona …

In the conventional human society, there are issues of diversity and variations in the demographical features of human beings. It is to say that there are innate characteristics that are unique to one group of people but completely different in an...Racial-relations-and-conflicts-in-the-Human-Society …