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POPSBecoming immortal A very interesting read! Of course, what are we going to do with eternity is not a medical question but rather philosophical and emotional. At least we will have time enough for love... For the quasi immortal humans of the future, nothing in this existence will look even remotely similar to the way we see things today.
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POPSAmazing Shark Pictures Off South African Coast "To see a perfectly streamlined great white slowly cruising in clear water with shafts of light bouncing off its back is like watching a sports car effortlessly cruise past you on the freeway. It is just one of those moments that makes you appreciate a beautiful creation."
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POPSLab Freaks Gone Wild? “What was once only science fiction is now becoming a reality, and we need to ensure that experimentation and subsequent ramifications do not outpace ethical discussion and societal decisions.
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POPSWhat the World Eats (1) What's on family dinner tables in fifteen different homes around the globe see also What the World Eats (2) http://clipmarks.com/clipmark/633A2B98-B0BE-4C2D-B5C7-19507606A388/
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POPSZebra's Stripes, Butterfly's Wings: How Do Biological Patterns Emerge? Previous work identified a specific signal necessary for getting these fly egg cells to move; the problem is that this signal is “graded.” Like drops of ink spreading out on wet paper, this signal travels in between surrounding cells, gradually fading away as it moves outwards. But clear lines are required for pattern formation — there is no grey area between a zebra’s black and white stripes, between heart and liver cells and, in this case, between migrating cells and those that stay put. How are graded signals converted to a clear move or stay signal? By examining flies containing mutations in different genes, the researchers discovered that one gene in particular, called apontic, is important for converting a graded signal.
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POPSNew Research On Octopuses Sheds Light On Memory It is not completely understood how these two systems are interconnected, if at all. However, the organization in the octopus demonstrates a sophistication that was not described yet in other animals. In the octopus, the short-term and long-term systems are working in parallel, but not independently. This is so because the long-term memory area -- in addition to its capacity to store long-term memories -- also regulates the rate at which the short-term memory system acquires short-term memories. This regulatory mechanism is probably useful in cases where faster learning is significant for the octopus' survival in emergency or risky situations.
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POPSThreat To Medicines From Plant Extinctions The world's most widely-used cancer drug, is Paclitaxel, which is derived from the bark of several species of yew tree. Its complex chemical structure and biological function has so far made it impossible to produce artificially. ----- 80 per cent of the global population - rely on traditional plant-based medicine as their primary form of healthcare. -----
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