There is not specific recognition of the developmental differences between grade levels or students and adults, and that's not «bad», per se. (soundout.org)
«Exposure of phosphatidylserine on the surface of apoptotic lymphocytes triggers specific recognition and removal by macrophages» (scientificamerican.com)
Learning theorists developed mathematically sound methods to adjust the weights on these units — how influential one input should be relative to another one — to get such feed - forward networks to learn to perform specific recognition tasks. (scientificamerican.com)