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POPSBack-to-School Season for Your Immune Cells In fact, "backpack" is a near-perfect analogy for this technology. The synthetic patch application consists of three layers of polyelectrolytes (certain types of polymers). Inside, the middle layer is whatever the scientists want the cell to be carrying: examples include a vaccine, a protein marker, or magnetic nanoparticles for controlled direction. The bottom layer of the patch is a polymer that attaches to the surface of the immune cell, and the top layer binds to other cells.
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POPSDocker River, NT, Australia Obviously had rain as it is usually red sand, desert oaks and spinifex. It was green when I was there in 1974 for a year. Correct name Kaltukatjara. It is in the south east corner, east of Yulura (Ayers Rock)
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POPSE.O. Wilson Returns to the Hive With Superorganism Tome Group evolution meant that altruism and self-sacrifice — i.e., morality — might be as much a part of our genetic heritage as hair and eye color.Many prominent biologists, led by Richard Dawkins, author of The Selfish Gene, said no, there was no such thing as a superorganism: Evolution worked on the genes of self-serving individuals only, not groups.
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POPSUnusual facts Eskimos use refrigerators to keep their food from freezing. *Birmingham(UK) has 22 more miles of canals than Venice. *If an Amish man has a beard,hes married. *Mexico once had three presidents in one day. *The Coca-Cola company is the largest consumer of vanilla in the world. *Millions of trees are accidentaly planted by squirrels that bury their nuts and then forget where they left them. *9 out of every 10 living thing lives in the ocean. *Lipstick contains fish scales. *Peanuts are one of the ingredients of dynamite. *Cows give more milk when they listen to music. *'Puffs' tissues didnt sell well in Germany because 'Puff' in German means brothel. *Parsley is the most widely used herb in the world. *There is 200 times more gold in the world's oceans than has ever been mined. *The Wright brother's first flight was shorter than the wingspan of a 747. *The Sanskrit word for 'War' means 'Desire for more cows'. *Monaco's national orchestra is bi
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POPSDan Dennett: Ants, terrorism, and the awesome power of memes Starting with the simple tale of an ant, philosopher Dan Dennett unleashes a devastating salvo of ideas, making a powerful case for the existence of memes -- concepts that are literally alive. Philosopher and scientist Dan Dennett argues that human consciousness and free will are the result of physical processes and are not what we traditionally think they are.
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POPSBe A Happy Camper "I love camping. You haven’t lived until you’ve cut your way out of a sleeping bag with a Swiss army knife." :lol:
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POPSAnts Break up Traffic Jams Interesting concept - taking some cues from insects to solve our own problems. An idea well past its time, but can we implement it?
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POPSMacaques make democratic decisions Whether or not the individual monkeys were successful in getting the rest of the group to follow them didn't seem to relate to their age, sex or status. "Even the children can get the group moving," says Cédric Sueur, a graduate student who worked on the study with Petit. The style of decision-making most frequently documented in the animal kingdom is dictatorial. In mountain gorillas, for example, the obedient tribe will follow the dominant male silverback. Horses, mongooses and wolves also follow despotic leaders. But theories are emerging which suggest that mammals who make democratic decisions may have an evolutionary edge because they can pool the experience of each group member.
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POPSAgriculture, from a different angle Several tribes of bark beetles are also major forest pests, and they farm their fungus gardens as their only source of food by growing the crop inside the sapwood of dead or dying trees. But the leaf-cutter ants are the modern pioneers, and their farming techniques are the most sophisticated of all, according to Schultz and Brady. They involve three separate but mutually dependent organisms that must all work together: The ants that eat leaves, grasses and flowers; the fungus that grows in the ant gardens; and a unique bacterium that lives and grows on the skin of the ants for mutual support. interesting.
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