During the lifetime of an application, the objects and bindings in a persistent store may require modification in order to fix bugs or incorporate changes. Two mechanisms, Octopus and Nodules, supporting the evolution of persistent applications are presented. The first, Octopus permits code and data values to be evolved, even if they are encapsulated. Type evolution is addressed by the separati...

The extraction of accurate kinematic information of animal appendages is of great importance for many biologically-inspired robotic applications. Octopus arm trajectories during a two-stroke arm-swimming motion have been initially analyzed through a vision-based 3D process, that reconstructs the arm spatial configurations and captures their 3D motion; this work is presented in [Kazakidi et al, ...

Tracking animal movements in 3D space is an essential part of many biomechanical studies. The most popular technique for human motion capture uses markers placed on the skin which are tracked by a dedicated system. However, this technique may be inadequate for tracking animal movements, especially when it is impossible to attach markers to the animal's body either because of its size or shape o...

1.Abstract 2. Why study complex nervous systems in invertebrates? 3. The vertical lobe of cephalopods and the insect mushroom body are unique brain structures involved in the advanced behavior of these animals 4. The morphological organization of the octopus nervous system 5. The learning and memory system of Octopus vulgaris 5.1. Morphological organization of the octopus VL-MSF syste 5.2. Elec...

Comparative analysis of brain function in invertebrates with sophisticated behaviors, such as the octopus, may advance our understanding of the evolution of the neural processes that mediate complex behaviors. Until the last few years, this approach was infeasible due to the lack of neurophysiological tools for testing the neural circuits mediating learning and memory in the brains of octopus a...

PURPOSE We previously reported the differential expression and translation of mRNA and protein in dark- and light-adapted octopus retinas, which may result from cytoplasmic polyadenylation element (CPE)-dependent mRNA masking and unmasking. Here we investigate the presence of CPEs in alpha-tubulin and S-crystallin mRNA and report the identification of cytoplasmic polyadenylation element binding...

Magnesium chloride (MgCl2) is commonly used as a general anesthetic in cephalopods, but its physiological effects including those at cardiac level are not well-characterized. We used an in vitro isolated perfused systemic heart preparation from the common octopus, Octopus vulgaris, to investigate: (a) if in vivo exposure to MgCl2 formulations had an effect on cardiac function in vitro and, if s...