Friction Stir Welding (FSW) has the advantage of generating sound welds on materials that generally present low weldability by traditional fusion welding processes, such as 2xxx and 7xxx aluminum alloys.Force measurement in FSW provides significant information about the Perfume process, the machine requirements, the effect of selected parameters, a
Metabolomic approaches, such as in clinical applications of living individuals, have shown potential use for solving questions regarding the past when applied to archaeological material.Here, we study for the first time the potential of this Omic approach as applied to metabolites extracted from archaeological human dentin.Dentin obtained from micr
A new species of the genus Ripipteryx (Orthoptera: Rugby Polo Shirts Tridactyloidea: Ripipterygidae) from the Toledo District of southern Belize is described and illustrated.Ripipteryx mopana sp.n.is placed in the Scrofulosa Group based on its elaborately ornamented frons and is readily distinguished from its congeners by the fusion of the superior
This study began with the observation that the profession of primary school teacher in the Democratic Republic of Congo is devalued.Thus, it proposes to indirectly evaluate the effect of this devaluation on the educational and professional aspirations of students in the pedagogical humanities.Two main hypotheses served as the guiding principles of