AstraLux is the Lucky Imaging camera for the Calar Alto 2.2-m telescope, based on an electron-multiplying high speed CCD. By selecting only the best 1-10% of several thousand short exposure frames, AstraLux provides nearly diffraction limited imaging capabilities in the SDSS i’ and z’ filters over a field of view of 24×24 arcseconds. By choosing commercially available components wherever possib...

Based on my 30 years as a neurologist, I knew his situation was not going to be a picnic, even before we met. An examination confirmed he had a cerebellar-like syndrome. I turned to Chris, paused, and then thought for a moment. “Your unsteady feeling, did it just happen or has it been going on for months?” His wife answered, “I think Chris has mentioned this to me for years.” When he nodded yes...

Foreign body aspiration is seen frequently in pediatric and geriatric patients, but it can also be seen in adults. Needle aspiration is a common problem in our country. Foreign body aspiration can lead to complete airway obstruction, asphyxia and death but sometimes symptoms may not be evident during the early period of aspiration and patients may present with complications afterwards. Early di...