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POPS What Queen Rania wants for the world Beauty and brains ..."in the West, people look at the veil as a sign of oppression or weakness. This is not true as long as a woman is wearing it because of her belief."
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POPSCat parasite in humans makes them like cat urine
Parasite "Brainwashes" Rats Into Craving Cat Urine, Study FindsBen Harder for National Geographic News April 3, 2007 The parasite Toxoplasma gondii uses a remarkable trick to spread from rodents to cats: It alters the brains of infected rats and mice so that they become attracted to—rather than repelled by—the scent of their predators. A new study reveals that rodents infected with the parasitic protozoa are drawn to the smell of cat urine, apparently having lost their otherwise natural aversion to the scent. The parasite can only sexually reproduce in the feline gut, so it's advantageous for it to get from a rodent into a cat—if necessary, by helping the latter eat the former. In rodents, "brain circuits for many behaviors overlap with the brain circuits responsible for fear," said Ajai Vyas of Stanford University, who led the new study. "One would thus assume that if something messes up fear of cat pee, it will also mess up a variety of related behaviors." Bu
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POPSWill Our Future Brains Be Smaller? Why does the brain need these two decision-making areas? What benefit does the new cortex bring? After all, extra brain means extra weight and energy required to carry it around. Furthermore, is the older sub-cortical system now largely redundant? If so, could we expect it to atrophy in future humans so our brains become smaller? The results of their modelling showed that when the threat level is high, such as the risk of being attacked by a dangerous animal, it is very useful to have the fast-acting, if inaccurate, system. But when dealing with situations which don't occur very often, or complex scenarios with many conflicting cues such as social situations, the cortical system is of more use than the sub-cortical system.
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POPSA dash of lime -- a new twist that may cut CO2 levels back to pre-industrial levels Tim Kruger, a management consultant at London firm Corven is the brains behind the plan to resurrect the lime process. He argues that it could be made workable by locating it in regions that have a combination of low-cost 'stranded' energy considered too remote to be economically viable to exploit – like flared natural gas or solar energy in deserts – and that are rich in limestone, making it feasible for calcination to take place on site.
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POPSHuman-frog hybrids reveal autism's secrets To see if abnormalities in neurotransmitter signalling also underlie autism, Miledi's team collected brain samples from six deceased autistic patients, aged eight to 39. They fused brain-cell membranes, which house neurotransmitter receptors, together with Xenopus egg membranes. As a control, they did the same thing with brain cells from patients with no history of mental disorder. Miledi's team then doused the frog eggs in neurotransmitter chemicals, and measured the voltage generated within each egg. The neurotransmitter chemicals tell brain cells to pump charged molecules in and out the membrane, creating a voltage across the membrane. Since Xenopus eggs do not respond to the neurotransmitters, the human proteins are completely responsible for any electric current generated. Four of six autistic brains responded to neurotransmitters chemicals less vigorously than the controls.
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POPS"Generation Kill" brings the Iraq war to the TV viewer From the producers of "The Wire" With its $550 billion budget and 1.5 million troops, the military might seem a mechanized colossus of precision-guided violence, give or take a few bad apples and errant artillery shells. But if you have served in the military or written about it from the inside, you know that on the unit level it is filled with men and women of vastly different motivations and skills. The Marines in Generation Kill are intelligent and dimwitted, panicked, sensitive, racist, comic, homicidal, brave. It is a wonder when things go according to plan. "You know what happens when you get out of the Marine Corps?" says one of the characters. "You get your brains back."
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POPSFish that can talk two fish, the toadfish and midshipman fish, have been found to actually be able to vocalize
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POPSHow Your Brain Controls Time
Warren Meck of Duke University argues that the brain measures long stretches of time by producing pulses. But the brain does not then count the pulses in the way a clock does. Instead, Meck suspects, it does something more elegant. It listens to the pulses as if they were music. At Humboldt University of Berlin in Germany, scientists have been building a model of how memory may store time. When neurons produce a regular cycle of signals, some signals come a little sooner and some come a little later. The researchers propose that as neurons pass these signals along, they can add tiny advances, some bigger than others. With these tiny wobbles, the brain can compress memories of time from several seconds down to hundredths of a second—a small enough package to store for later retrieval. As it stores time in memories, the brain may alter it in another way that is even more radical. It may record time so that our brains recall events in backward order. Scientists at MIT discovered re
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POPSTo believe or not to believe? , contrasting disbelief and belief showed increased brain response in the left inferior frontal gyrus, the anterior insula and the dorsal anterior cingulate, all associated with responses to negative stimuli, pain perception and disgust. Finally, contrasting uncertainty with both belief and disbelief revealed elevated neural action in the anterior cingulate cortex, a region associated with conflict resolution. What do these results tell us? “Several psychological studies appear to support Spinoza’s conjecture that the mere comprehension of a statement entails the tacit acceptance of its being true, whereas disbelief requires a subsequent process of rejection”
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