Hypervelocity collisions with space debris (SD, natural meteoroids and man-made artifacts) can significantly affect the performance of spacecraft. Here, I use an adaptivemesh Eulerian hydrodynamic code, Mie-Grüneisen solid-mechanics, and a simple material-failure model, running on a modern PC, to analyze the protection afforded by a nominal two-plate aluminum shield to hypervelocity collisions ...

Parathyroidectomy is the only definitive cure for primary hyperparathyroidism (PHPT). While bilateral neck exploration has been the conventional surgical approach and the mainstay of therapy, recent advances in technology have revolutionized the field, making a focused or minimally invasive approach to parathyroidectomy a reality. This change has taken place because of the development of accura...

                                            ...

                                            ...

Cervical cancer is the second most common type of cancer among women in spite of the fact that it through screening easily can be detected and cured before it becomes invasive. Current screening procedures are too complex and costly for use in developing countries. The CerviSCAN project is an attempt to create a automated cervical cancer screening system that will lower the cost and increase th...

OBJECTIVE This study aims at determining if a collection of 16 motor tests on a physical simulator can objectively discriminate and evaluate practitioners' competency level, i.e. novice, resident, and expert. METHODS An experimental design with three study groups (novice, resident, and expert) was developed to test the evaluation power of each of the 16 simple tests. An ANOVA and a Student Ne...

This teaching case addresses the strategic choices of social entrepreneurs, Mie and Ingvild, who founded the ViaVia café in Yogyakarta, Indonesia. In their daily management of ViaVia , Mie and Ingvild put respect for local culture and ideals above short-term profit. They offered good working conditions for staff with opportunities to learn and grow, which resulted in a loyal group of employees ...