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Adaptive response to a varying environment is a common feature of biological organisms. Reproducing such features in electronic systems and circuits is of great importance for a variety of applications. Here, we consider memory models inspired by an intriguing ability of slime molds to both memorize the period of temperature and humidity variations, and anticipate the next variations to come, when appropriately trained. Effective circuit models of such behavior are designed using i) a set of LC-contours with memristive damping, and ii) a single memcapacitive system-based adaptive contour with memristive damping. We consider these two approaches in detail by comparing their results and predictions. Finally, possible biological experiments that would discriminate between the models are discussed. In this work, we also introduce an effective description of certain memory circuit elements.
Memory models of adaptive behaviour
Fabio Lorenzo Traversa, Yuriy V. Pershin, Massimiliano Di Ventra
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Five ways to drive large-scale social change by working cooperatively.
Leaders and organizations are acknowledging that even their best individual efforts can't stack up against today's complex and interconnected problems. They are putting aside self-interests and collaborating to build a new civic infrastructure to advance their shared objectives. It's called collective impact and it's a growing trend across the country. (...)While collaboration is certainly not a foreign concept, what we're seeing around the country is the coming together of non-traditional partners, and a willingness to embrace new ways of working together. And, this movement is yielding promising results.... five lessons for driving large-scale social change through collaboration:
Ben Hecht is President & CEO of Living Cities, an organization that harnesses the collective knowledge of its 22 member foundations and financial institutions to benefit low income people and the cities where they live.