We have studied the distribution of neurokinin A-like immunoreactive cell bodies and fibers in the cat brainstem. The densest clusters of perikarya containing the peptide were observed in the periaqueductal gray, inferior colliculus, postpyramidal nucleus of the raphe, medial nucleus of the solitary tract and in the lateral reticular nucleus. By contrast, the interpeduncular nucleus, magnocellu...

Ultrafast acoustic imaging experiments are a powerful tool to investigate, at the nanometer scale, cell mechanical properties such as stiffness, viscosity, and adhesion, that play some roles in life death of cells. However, due complex structures, ultrafast signal analysis is quite intricate depends on multiple parameters. Complex data with poorly known parameters can be handled by clustering m...

Cell entry into a micro-channel has potential applications in cell sorting and cancer diagnostics. In this paper, we numerically model breast cancer cell entry into a constricted micro-channel. Our results indicate that the cell velocity decreases during entry and increases after entry, an observation in agreement with experiments. We found that the cell entry time depend strongly on the cortic...

In this paper, we present a microfluidic platform for the study of cancer cell transmigration and anti-cancer drug screening. The device consists of an array of microchannels with dimensions close to the capillaries on the cellular barriers, while a thin glass coverslip is used as the substrate to enable high resolution imaging of cell dynamics during cancer cell transmigration. We have investi...

We studied the distribution of parvalbumin-immunoreactive cell bodies and fibers in the cat brain stem. A high or moderate density of perikarya containing parvalbumin was observed in the periaqueductal gray, interpeduncular nucleus, nucleus of the trapezoid body, superior and inferior colliculi, and in the substantia nigra. The nucleus ruber, cuneiform nucleus, preolivary nucleus, retrorubral n...

We present an absolute $^3$He polarimetry method based on thermal neutron transmission for a double-chambered cell. This utilizes the fact that nucleus has large absorption cross section and spin dependence neutrons. The cell had pumping chamber target chamber. Polarized gas was produced in by SEOP then diffused into polarization determined comparing transmissions with polarized unpolarized tar...

The role of raphe nucleus (R.N) and serotonin in some behaviors such as sleep, cognition, mood, and memory has previously been reported. The median raphe (MR) nucleus is a major serotonin-containing cell group within the brainstem and is one of the main sources of projections to the septum and hippocampus. The hippocampus is widely believed to be essential for context-conditioning learning. Mor...