The extent to which a microscope can be miniaturized was recently demonstrated by Mark Schnitzer from Stanford University using a single ... Neuronal activity increased when the animals were ...

Bring the slide back into focus using the fine focus adjustment. If you do not succeed, go back to low-power and re-focus, then try again. Care must be taken when looking down the microscope if ...

The Office of Personnel Management (OPM) will again report on how much time and money federal employees spend on union ...