Itch (Itching or Pruritus) Itching can be a common problem. Itches can be localized or generalized. There are many causes of itching to include: infection...learn more Â». Menopause Menopause is the time in a woman's life when menstrual periods permanently stop, also called the change of life..
SMT (surface mount technology) component placement systems, commonly called pick-and-place machines or P&Ps, are robotic machines which are used to place surface-mount devices (SMDs) onto a printed circuit board (PCB).
Net primary production is the rate at which all the plants in an ecosystem produce net useful chemical energy; it is equal to the difference between the rate at which the plants in an ecosystem produce useful chemical energy (GPP) and the rate at which they use some of that energy during respiration.he maps above show Earth's monthly net primary productivity from February 2000 to December 2013. The data come from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASAâs Terra satellite.