John Serak

Learn More
In the present work Zn-Mg alloys containing up to 3wt.% Mg were studied as potential biodegradable materials for medical use. The structure, mechanical properties and corrosion behavior of these alloys were investigated and compared with those of pure Mg, AZ91HP and casting Zn-Al-Cu alloys. The structures were examined by light and scanning electron(More)
diffusion histology and microtractography to reveal mesoscale features of human brain. The spatial resolution used in this technique is orders of magnitude more than that in DTI, allowing the disentangling of connections that might have been grouped together in a single window with DTI. In the meantime, it is important to recognize the subjective nature of(More)
Christensen MS, et al. Dopamine replacement modulates oscillatory coupling between premotor and motor cortical areas in Parkinson's disease. A t the cellular level, the formation of memories in the hippocampus relies on neuronal activity, leading to structural changes in synapses and neurons, resulting in the formation of stable, retrievable memories. This(More)
A 20-year-old-female presented to the emergency department (ED) with a chief complaint of a persistent dull headache associated with a 7 mm dilated, non-reactive right pupil, and occasional blurry vision for 4 days. The patient had a past medical history significant for Noonan's syndrome (NS). In the ED the patient's physical examination demonstrated normal(More)