The Highly Engaged Classroom. The following tips are designed to assist you in applying the latest research in tangible ways in your classroom, school, or district. When given choice by teachers, students perceive classroom activities as more important. Providing students academic choices increases engagement.
Indolamines are a class of monoamines, and consist of the neurotransmitter serotonin. Epinephrine, which is released from the adrenal glands, stimulates the sympathetic nervous system. Monoamines are neuromodulators, which means they are able to stimulate many neurons located far away from each other.
Freebase(0.00 / 0 votes)Rate this definition: Signal peptide. A signal peptide is a short peptide present at the N-terminus of the majority of newly synthesized proteins that are destined towards the secretory pathway. These proteins include those that reside either inside certain organelles, secreted from the cell, or inserted into most cellular membranes.