Direct Measurement of Nucleoside Ribohydrolase Enzyme Activities in Cells Using F and C-Edited H NMR Spectroscopy.

Trichomoniasis is the most common nonviral sexually transmitted infection, affecting an estimated 275 million people worldwide. The causative agent is the parasitic protozoan . Although the disease itself is typically mild, individuals with trichomonal infections have a higher susceptibility to more serious conditions.

A constant-frequency feedback loop for non-contact frequency-modulated atomic force microscopy via root locus: Implemented on a single-board field-programmable gate array device.

Non-contact, frequency modulated atomic force microscopy is often operated in the constant-frequency mode to obtain a height map of the sample's surface. Once linearized, the dynamics of the constant-frequency closed-loop system are reduced to a single transfer function. By modifying the bandwidth of this transfer function, a tradeoff is achieved between image noise and imaging speed.