… Assuming that these functions are of Hill type (as is the case in most IP 3 R models), a good
measure of the dynamic range of the feedback is the dissociation constant K D . Generally …

… , N) calculates the cumulative hypergeometric distribution, with up to k successes in n draws,
without replacement, from a finite population of size N that contains exactly K successes. …

Natural killer (NK) cells are innate lymphocytes that lack antigen-specific rearranged
receptors, a hallmark of adaptive lymphocytes. In some people infected with human …

… deg ), and partial recycling (k rec ). The interaction scheme translates into coupled
reaction–diffusion equations with reactive boundary conditions (SI Text S1: Mathematical Modeling). …

… Variation of either the direct or the indirect feedback strength (parameters k i,A and k i,H ,
respectively), in which one of those parameters is held constant at the standard value k i = 20. …

… k and g are the mean rate coefficients, which experience a time modulation described by
cosine-shaped functions with relative (percentage) amplitudes Aprod and Adeg (values …

Ca 2+ is a ubiquitous intracellular messenger that regulates diverse cellular activities.
Extracellular stimuli often evoke sequences of intracellular Ca 2+ spikes, and spike frequency may …

… A + B ⟷ C + D d C d t = k AB - CD K eq with k the rate of the forward reaction and K eq the
equilibrium constant of the reaction approximated by K eq = C eq D eq / A eq B eq where X eq …

… The value of t j (k) gives the time when the presynaptic neuron j emitted the kth spike,
which is received by neuron i after a delay d = 1 ms. For each connection from a neuron j to a …

Over the last decade virtual reality (VR) setups for rodents have been developed and utilized
to investigate the neural foundations of behavior. Such VR systems became very popular …