[Dermatomyositis as a paraneoplastic syndrome of head-neck-cancer: Case series & literature review].

Introduction: Dermatomyositis (DM) is a rare disease with the clinical manifestation of weakness and pain of proximal muscles as well as lilac-coloured skin lesions. One fifth of the cases is associated with the occurrence of a malignant tumor disease. The aim of this study is to evaluate the relevance of DM as a paraneoplastic syndrome in head and neck cancer taken into account the current literature.

Comparing two types of engineering visualizations: task-related manipulations matter.

This study focuses on the comparison of traditional engineering drawings with a CAD (computer aided design) visualization in terms of user performance and eye movements in an applied context. Twenty-five students of mechanical engineering completed search tasks for measures in two distinct depictions of a car engine component (engineering drawing vs. CAD model).

Novel TRPM6 mutations in 21 families with primary hypomagnesemia and secondary hypocalcemia.

Primary hypomagnesemia with secondary hypocalcemia is a rare autosomal recessive disorder characterized by profound hypomagnesemia associated with hypocalcemia. Pathophysiology is related to impaired intestinal absorption of magnesium accompanied by renal magnesium wasting as a result of a reabsorption defect in the distal convoluted tubule. Recently, mutations in the TRPM6 gene coding for TRPM6, a member of the transient receptor potential (TRP) family of cation channels, were identified as the underlying genetic defect.