Because the understanding of receptors and receptor-mediated signaling mechanisms is fundamental to many biological processes, ëBiological Signalsí has changed its name to ëBiological Signals and Receptorsí and will feature more articles on this topic in future issues. The journal continues to provide a unique platform for new ideas, novel concepts, and innovative hypotheses which do not always conform to classical theories and teaching. As an international journal, it publishes original articles, reviews and communications in the broad field of production, transmission, processing, recognition, effects, modification and evolution of biological signals. Topics of discussion range from the subcellular to the cellular and organismal level. Areas of investigation are approached from the molecular to the socio-biological level, and the stimuli and responses examined may be both long-term and short-term in nature. Disconinued - now NeuroSignals.