Nakhlak lead mine is located at the Nakhlak mountain 55 km NE of Anarak town in Isfahan province.The Din Rail Enclosures mineralogy is simple; galena and barite are the main primary minerals and cerussite is the main secondary mineral.Sphalerite, pyrite, chalcopyrite, tetrahedrite-tennantite and acanthite occur as minor and trace mineral inclusions
Objective: Attention deficit hyperactivity disorder (ADHD) is a common psychiatric disorder diagnosed in increasing proportions of children and adolescents.The psychostimulant methylphenidate has been considered the first-line pharmacological treatment for children and adolescents with ADHD for more than 60 years.Considering recent publications on
This study investigated the number of Streptococcus mutans CFU (colony forming units) in the saliva and plaque adjacent to orthodontic brackets bonded with a glass ionomer cement - GIC (Fuji Ortho) or a resin-based composite Air Conditioner - RC (Concise).Twenty male and female patients, aged 12 to 20 years, participated in the study.Saliva was col
In this paper, we define and study extensively a new type of external sets in , we call it "convex galaxies".We show that these convex external sets may be classified in some definite types.More precisely, we obtain the Foley Catheters following : (1)Let be a convex galaxy which is symmetric with respect to zero, then (i) is an - galaxy (0) if and