Stories by John Hewitt

Driving myelination by actin disassembly

(Phys.org)—If a metallurgist wanted to determine how a blade was made they might cut a small cross section, mount, polish, and etch it, and then look at it under a microscope. They could probably tell right ...

Jul 27, 2015

Plausibility of the vibrational theory of smell

The vibrational theory of olfaction explains several aspects of odorant detection that theories based purely on receptor binding do not. It provides for additional selectivity through receptors that are tuned ...

Apr 20, 2015

The vital question: Why is life the way it is?

The Vital Question: Why is life the way it is? is a new book by Nick Lane that is due out on April 23rd. His question is not one for a static answer but rather one for a series of ever sharper explanations—explanations ...

Apr 01, 2015

How to myelinate a nerve

(Medical Xpress)—Demyelinating diseases, like MS or ALS, attack an otherwise healthy nervous system and leave its owner a prisoner in their own body. The harder big pharma searches for—and fails to find—miracle ...

Mar 24, 2015

The origins of polarized nervous systems

(Phys.org)—There is no mistaking the first action potential you ever fired. It was the one that blocked all the other sperm from stealing your egg. After that, your spikes only got more interesting. Waves ...

Mar 03, 2015