#biomathematics

05-08-2021 11:46AM

Almost finished with my statistics for the report I'm writing

The sunshine is luring me out

Humans need MOVEMENT. Humans need IRRITABILITY. Humans need METABOLISM. Humans need DIGESTION. Humans need EXCRETION. Humans need REPRODUCTION. Humans need GROWTH. Humans need BOUNDARIES. Your survival needs are Oxygen, Water, Nutrients, appropriate body temperature, and appropriate atmospheric pressure. You need homeostasis, which relies upon positive and negative feedback…

Sea mollusks taste their memories to build shells

University of California, Berkeley, graduate student Alistair Boettiger has amassed a beautiful collection of seashells, but not by combing the beach. He created them in his computer.

He and George Oster, a UC Berkeley biophysicist, along with University of Pittsburgh mathematical neuroscientist Bard Ermentrout, have written a computer program that generates the complex patterns of seashells using simple principles developed to explain how the brain works and how memories are stored.

The "neural net" model explains how mollusks build their seashells based on the finding that the mollusk's tongue-like mantle, which overlaps the edge of the growing shell, senses or "tastes" the calcium carbonate layer laid down the day before in order to generate a new layer.

"The pattern on a seashell is the mollusk's memories," said Oster, a professor of environmental science, policy and management and of molecular and cell biology. "The shell is laid down in layers, so the mantle is sensing the history of the mollusk's 'thoughts' and extrapolating to the next layer, just like our brains project into the future."

The studies may help neuroscientists understand how neural networks work in the brain and throughout the body, where neural nets cover our skin and all internal organs.

Good evening! ✨

Hi guys, how's it going? Me so so, since I have failed chem and I have to take the June exam to pass. I hope everything goes well because at the moment another failure added to my list of disappointments 💀.