(1) Intriguingly, rhythmic luminescence in certain lines was affected by only a subset of the pacemaker mutations.(2) This property also leads to the intense luminescence and electron transfer capability of porphyrins and many metalloporphyins.(3) He studied seawater luminescence and ocean temperatures while charting the path of the Gulf Stream.(4) The acceleration of the recombination rate and the strong stimulation of luminescence caused by the membrane potential are well known.(5) honey fungus produces a ghostly greenish luminescence(6) Most of the arthropods consist of an infill of sparry calcite with uniform luminescence .(7) The luminescence was quantified in live cells using bioluminescence imaging.(8) It seems clear that the photocyte has substantial local control of its luminescence and is not dependent on external oxygen in any simple way.(9) When a laser light source is used to stimulate the release of electrons, the process is called optically stimulated luminescence .(10) The luminescence in these cases may be excited by direct electron impact rather than with UV light.(11) Streptococci emit light during log phase growth, and luminescence subsides as they enter stationary phase.(12) Chemiluminescence is a special case of luminescence in which the excitation source is a chemical reaction.(13) This might be explained by the pattern of brain generated neural bursts that initiate luminescence and this appears to be the case in P. lucicrescens.(14) Pholasin alone can emit luminescence if exposed to superoxide.(15) There are different types of luminescence .(16) This luminescence makes them interesting candidates for applications in biological test systems or as sensors.