Educational Robotics has had an important impact in recent years as it offers a number of advantages for students. The inclusion of robotics in any educational stage requires teachers with adequate predisposition and training, making it necessary to know the opinions of pre-service teachers. The aim of our study is to analyze the perceptions and self-confidence of 109 pre-service primary education teachers before and after an intervention based on educational robotics and challenge-based learning to teach scientific and mathematical content, in their third academic year.
View Article and Find Full Text PDFMigration routes determine exposure to endemic infections. We present a case of complex cutaneous leishmaniasis in a man with HIV infection who migrated to the United States from Haiti, where is uncommon, acquiring leishmaniasis while on his journey via South America and Central America. His presentation included hyperpigmented, nonulcerated plaques and nodules on his extremities, chest, back, face, palms, and soles; initially he had no mucosal lesions.
View Article and Find Full Text PDFSilk fibroin (SF) extracted from silkworm silk can be transformed into transparent membranes with well-suited physical properties for ophthalmic applications. There is ample literature on the fabrication and characterization of SF-based membranes; however, the use of diverse SF extraction protocols and characterization methods or their settings makes it difficult to compare different silk membrane properties across studies. In this work, we fabricated 10 families of SF-based membranes by physical cross-linking and one non-cross-linked as a control.
View Article and Find Full Text PDFThe mechanical properties of the sclera are related to its structural function, and changes to these properties are believed to contribute to pathologies such as myopia. Air-puff deformation imaging is a tool that uses an imaging system coupled with an air-puff excitation source to induce and measure deformation in a tissue . Typically used for the study of the cornea's mechanical properties and IOP, this tool has been proposed as a method to evaluate scleral stiffness.
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