Post-walking exercise skeletal muscle perfusion and energetics in patients with symptomatic lower extremity peripheral artery disease.

Background: The pathophysiology of symptoms and reduced exercise capacity from peripheral artery disease (PAD) remains unclear. Additionally, there is limited information on blood flow and skeletal muscle energetics after walking exercise in patients with claudication in comparison to healthy individuals.

Methods: We prospectively enrolled 19 patients with claudication from PAD and 12 healthy subjects.

DC Electric Fields Promote Biodegradation of Waterborne Naphthalene in Biofilter Systems.

Biofiltration is a simple and low-cost method for the cleanup of contaminated water. However, the reduced availability of dissolved chemicals to surface-attached degrader bacteria may limit its efficient use at certain hydraulic loadings. When a direct current (DC) electric field is applied to an immersed packed bed, it invokes electrokinetic processes, such as electroosmotic water flow (EOF).

Adsorption of Ag, Au, Cu, and Ni on MoS: theory and experiment.

Here, we present results of a computational and experimental study of adsorption of various metals on MoS. In particular, we analyzed the binding mechanism of four metallic elements (Ag, Au, Cu, Ni) on MoS. Among these elements, Ni exhibits the strongest binding and lowest mobility on the surface of MoS.

Quantitation of mitral regurgitation using positron emission tomography.

Background: Cardiac positron emission tomography (PET) offers non-invasive assessment of perfusion and left ventricular (LV) function from a single dynamic scan. However, no prior assessment of mitral regurgitation severity by PET has been presented. Application of indicator dilution techniques and gated image analyses to PET data enables calculation of forward stroke volume and total LV stroke volume.