In constrained optimization, a field of mathematics, a barrier function is a continuous function whose value increases to infinity as its argument approaches...

allows nutrients to pass through the gut, while also maintaining a barrier function to keep potentially harmful substances (such as antigens) from leaving...

The secretion of various molecules into the lumen reinforces the barrier function on the extra-epithelial side, while a variety of immune cells provide...

thread function handler, which call thread_barrier_wait(&barrier), while thread barrier expected 3 threads to call thread_barrier_wait (THREAD_BARRIERS_NUMBER...

such as glucose and amino acids that are crucial to neural function. The blood–brain barrier restricts the passage of pathogens, the diffusion of solutes...

hydrogen atoms. Some sources describe the mere penetration of a wave function into the barrier, without transmission on the other side, as a tunneling effect...

formation of an extracellular matrix that is an integral part of the skin barrier function. In normal skin, the rate of keratinocyte production equals the rate...

self-concordant barrier is a particular self-concordant function, that is also a barrier function for a particular convex set. Self-concordant barriers are important...

causes the amnion to be passively attached to the chorion. The chorion functions to separate the amnion from the maternal decidua and uterus. The placenta...

Schottky barrier, named after Walter H. Schottky, is a potential energy barrier for electrons formed at a metal–semiconductor junction. Schottky barriers have...