FOR the observations of concentration distribution in an ultracentrifuge cell during the process of sedimentation, methods depending on light absorption or refractive index have been used 1, 2.

The question of how many polyhedral nanocrystals of silver can be packed into millimeter-sized supercrystals may not be burning on many lips but the answer holds importance for one of today's hottest ...

Three cytologically distinct cell populations were identified, in addition to ciliated cells, when a unit gravity sedimentation procedure was applied to pronase-dispersed rabbit endocervical cells.

Sediments in water are finely-grained particles which are traditionally generated as a by-product of natural weathering and soil erosion, but are increasingly the result of human activities, such as ...