""The key to not eating like a dog with opposable thumbs is to prepare your snacks in advance of getting high. If you buy a crate of blueberries, you will eat that crate, but at least you won't be eating a crate of donuts."
Same if having a couple drinks. Won't make smart food decisions soon afterwards, better to have something ready.
"...A student of mine was on the island working, regretting the fact that birds were dying. We got a letter from him about the dismal field season. But we thought this could be of crucial importance for understanding why birds are the shape and size they are. That was the first glimmer.
We went back to the island at the end of 1977 with our two daughters. As a family we scoured the island for dead and live birds. We discovered it was largely the small-beaked birds that had died. The medium ground finches with large beaks had a survival advantage over those with small beaks because they were able to take advantage of large seeds. When we looked at the offspring of survivors, we found that they were large like their parents. There had been an evolutionary change in beak size. This was a clear demonstration of evolution by natural selection..."
"Scientists are investigating a way to use temporary tattoos that deliver nanoparticles to treat autoimmune diseases like multiple sclerosis.
“Placed just under the skin, the carbon-based particles form a dark spot that fades over about one week as they are slowly released into the circulation,” says Christine Beeton, a scientist at Baylor College of Medicine.
The tiny particles, modified with polyethylene glycol, are conveniently choosy as they are taken up by cells in the immune system.
T and B lymphocyte cells and macrophages are key components of the immune system. However, in many autoimmune diseases such as multiple sclerosis, T cells are the key players. One suspected cause is that T cells lose their ability to distinguish between invaders and healthy tissue and attack both.
In tests at Baylor, nanoparticles were internalized by T cells, which inhibited their function, but ignored by macrophages.
Beeton suggests delivering carbon nanoparticles just under the skin rather than into the bloodstream would keep them in the system longer, making them more available for uptake by T cells. And the one drawback—a temporary but visible spot on the skin that looks like a tattoo—could actually be a perk to some.
“We saw it made a black mark when we injected it, and at first we thought that’s going to be a real problem if we ever take it into the clinic,” Beeton says. “But we can work around that. We can inject into an area that’s hidden, or use micropattern needles and shape it."
“The ability to selectively inhibit one type of cell over others in the same environment may help doctors gain more control over autoimmune diseases,” says Beeton."
- University of Hawaii at ManoaMS in Geology and Geophysics, 1970 - 1975
- Technical writerTechnical Writer, 2006 - present
This Wireless Explosives Detector Is the Size of a Postage Stamp | WIRED
For public safety agencies, sniffing out explosives and other contraband is a tricky task. Handheld explosive detectors can be as small as a
Jonathan Franzen Shakes His Fist at the Clouds, Especially the Virtual O...
Maybe nobody will care about printed books 50 years from now, but I do. When I read a book, I'm handling a specific object in a specific
New kind of metal in the deep Earth: Iron oxide undergoes transition und...
The intense pressures and temperatures in Earth's deep interior squeeze atoms and electrons so close they interact differently. New experime