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Showing posts with label Research. Show all posts
Showing posts with label Research. Show all posts

6/2/08

Scientific American Topic - Thought & Cognition

http://www.sciam.com/article.cfm?id=can-fractals-spot-genuineA new study attacks the technique of using fractals, the repeating patterns found in everything from coastlines to fern fronds, to help distinguish authentic Jackson Pollock drip paintings from paint splattered by lesser hands.

http://www.sciam.com/article.cfm?id=how-the-brain-maps-symbolIn a study that involved teaching monkeys to associate Arabic numerals with their corresponding quantities, German researchers fingered the prefrontal cortex as the part of the mammalian brain that is responsible for relating symbols with abstract...
http://www.sciam.com/article.cfm?id=climate-changes-uncertainty-principleThe Intergovernmental Panel on Climate Change in its first report in 1990 predicted that temperatures would warm by 0.5 degree Fahrenheit (0.3 degree Celsius) per decade if no efforts were made to restrain greenhouse gas emissions. But the panel of...
http://www.sciam.com/article.cfm?id=simplest-computer-new-kind-scienceFive years ago, grown-up wunderkind Stephen Wolfram did his darnedest to alter the course of scientific history. The former particle physicist, who is by all accounts a genius, poured two decades worth of heady thoughts on the nature of computers,...
http://www.sciam.com/article.cfm?id=how-to-win-an-election-maHey, candidates. Want to win an election? Simple. Just appear competent--even if you're not. A new report confirms what may be some politically inclined people's worst nightmare: looks matter.

http://www.sciam.com/article.cfm?id=coal-friendly-climate-changes-in-kansasNew coal power plants won't find a home in Kansas, according to the state's Department of Health and Environment (KDHE). The agency, tasked with protecting the state's environment and public health, denied air quality permits for two 700-megawatt,...
http://www.sciam.com/article.cfm?id=cave-speak-did-neandertalGerman researchers have discovered Neandertals apparently had the human variant of a gene that is linked to speech and language. A team of scientists, primarily from the Max Planck Institute for Evolutionary Anthropology in Leipzig, made the discovery...
http://www.sciam.com/article.cfm?id=elephants-smell-fearThey say elephants never forget, but their brainpower does not stop there. A new study suggests that pachyderms can distinguish threatening groups of people from those who mean them no harm.

http://www.sciam.com/article.cfm?id=distortion-free-lens-techFor years, researchers have struggled to find an efficient way to develop lenses that do not lose portions of light as it passes through--an effect that hinders the performance of lasers, medical diagnostic imaging equipment and sensor systems. Now...
http://www.sciam.com/article.cfm?id=earliest-known-seafood-diWhen the going got tough, early humans went to the beach for seafood and possibly a dose of symbolic thought, according to a new study. Researchers excavating a cave on the southern coast of South Africa discovered a bowl's worth of edible shellfish...
http://www.sciam.com/article.cfm?id=successful-malaria-vaccinA baby born in sub-Saharan Africa faces a lifetime of health risks, but none more challenging than surviving its first five years. A major reason for that is malaria, a parasitic disease spread by mosquitoes. Of the more than one million malaria deaths...
Scientific American Magazine: The Forgotten Code CrackerIn the summer of 2006 Marshall W. Nirenberg chanced on a just published biography of a prominent molecular biologist. It was entitled Francis Crick: Discoverer of the Genetic Code.

Scientific American Mind: Shocked into ConsciousnessA severely brain-injured man showed marked improvements after treatment with deep brain stimulation, a technique in which surgically implanted electrodes deliver electrical impulses to the brain. For six years the patient, who sustained head trauma during...
Scientific American Mind: Ambiguities and PerceptionThe brain abhors ambiguity, yet we are curiously attracted to it. Many famous visual illusions exploit ambiguity to titillate the senses. Resolving uncertainties creates a pleasant jolt in your brain, similar to the one you experience in the...
Web Features: How Do Artists Portray Exoplanets They've Never Seen?Stargazers have yet to lay eyes on any of the nearly 240 planets detected outside our solar system. These so-called exoplanets are too faint for current telescopes to distinguish from the stars they orbit*; instead astronomers rely on indirect methods to...
http://www.sciam.com/article.cfm?id=dont-forget-drink-a-beerYou may be hard-pressed to recall events after a night of binge drinking, but a new report suggests that low to moderate alcohol consumption may actually enhance memory.

Scientific American Magazine: How Does Consciousness HappenHow brain processes translate to consciousness is one of the greatest un­­-­solved questions in science. Although the scientific method can delineate events immediately after the big bang and uncover the biochemical nuts and bolts of the...
Scientific American Magazine: Rapturous Sociability--Armageddon Avoided--The Allure of VenusSHYNESS: HOW NORMAL BEHAVIOR BECAME A SICKNESS

http://www.sciam.com/article.cfm?id=fetal-neurons-still-operaA population of nerve cells crucial for proper brain wiring may serve a completely different function in adult and fetal brains, according to a new study in The Journal of Neuroscience.

http://www.sciam.com/article.cfm?id=human-toddlers-trump-apes-sociallyIn the first study to compare social skills of different species performing the same tasks, a team of German researchers found that two-year-old toddlers are more socially mature than adult apes.

Scientific American - Health Articles

News: How Our Genomes Control DiversityTwo recent discoveries have shed new light on the source of diversity in the human population. In one study, scientists examined patterns in DNA recombination, the process by which a person's genome is consolidated into one set of chromosomes to pass onto...
News: Ahchoo! Mice Bred to Catch Common ColdIf you're suffering through a cold as you read this, with all the mucus, throbbing of temples and listlessness that come with it, let a new study cheer you up: Researchers have created the first mice susceptible to the one of the most common human cold...
News: Are Americans Afraid of the Outdoors?Americans have been visiting national parks and other natural reserves less and less since 1987, new research confirms. Outdoor pursuits, ranging from camping to hunting, have entered a persistent and growing decline.

Sciam Observations Blog: The science of Superbowl fandom: why your testosterone level is upAre you a Giants fan? Are you feeling good today? It could be the testosterone boost you got from vicariously participating in the Giants' miraculous late-game win in Sunday's Super Bowl.This effect has been known about for quite some time -- a 1998 paper...
News: Net Benefits: Bed Netting, Drugs Stem Malaria DeathsFour African countries saw significantly fewer childhood deaths from malaria after distributing insecticide-treated bed nets and combination drug therapy, according to a new report released by the World Health Organization (WHO).

News: News Bytes of the Week--Mystery Illness Strikes BatsFor bats in peril, white noses nothing to sniff at

News: Is Old Age Memory Decline Reversible?Scientists have found that a lessened supply of new nerve cells in the adult brain apparently triggers short-term memory loss typically associated with aging, setting the stage for one day developing therapies designed to maintain a steady supply of fresh...
News: Pigs Could Be the Salvation of Diabetes SufferersMost people probably view pigs at best as a source of sustenance or, at worst, as filthy, gluttonous animals. But it seems our porcine pals may also prove invaluable in the fight against type 1 diabetes. Researchers are experimenting with new ways of...
Scientific American Mind: C'mere, Big BoyMost female mammals go into some form of estrus, or heat, when fertile, displaying hormone-induced behavioral changes that mark ovulation. Scientists used to think that humans were the exception, but evidence is mounting that women may undergo their own,...
Scientific American Mind: Heart Attack PanicAt their peak, panic attack symptoms are so severe and frightening that people often mistake them for signs of a heart attack and rush to the hospital.

Scientific American Mind: Mental Illness in AmericaIn any given year 26 percent of American adults suffer from mental disorders, based on guidelines in the official handbook for diagnosing mental illness, the DSM-IV.

Scientific American Mind: Uncovering "Brainscams"Most of us take our brain for granted. As poet Robert Frost wrote, “The brain is a wonderful organ. It starts working the moment you get up in the morning and does not stop until you get into the office.” Weighing in at a mere three pounds and...
Scientific American Mind: Sex is Better for Women in LoveWomen certainly know when they experience one, but science, on the other hand, knows surprisingly little about the female orgasm. Most studies have looked at animals rather than humans, focusing on how sensory information flows to and from the sex organs....
Scientific American Mind: The Sound of SilenceFrom the moment we begin to hear, our auditory system is precisely tuned, able to distinguish subtle differences between sounds. But how does it get that way? New research reveals how developing ears generate their own noise, a process that may help...
Scientific American Mind: Predicting Alzheimer'sDiagnosing Alzheimer’s disease is difficult--confirmation can be obtained only postmortem, by verifying at autopsy that the brain has an abundant amount of plaque made up of the sticky beta-amyloid protein. To gauge Alzheimer’s in living...
Scientific American Mind: Stem Cells for MemoryStem cells have long been heralded as a potential treatment for a range of brain ailments, but research has so far focused on movement disorders such as Parkinson’s disease. Now a new animal study shows that the immature cells could also help with...
Scientific American Mind: "Chemo Brain" CulpritThose who have endured the rigors of cancer therapy talk about “chemo brain,” the memory and concentration problems that accompany radiation and chemotherapy. Now researchers led by neurologist Michelle L. Monje of Harvard University have...
Scientific American Mind: The Medicated AmericansI am thinking of the Medicated Americans, those 11 percent of women and 5 percent of men who are taking antidepressants.

Scientific American Mind: The Character CodeYou are diagnosed with a crippling illness. You lose your job. Someone close to you suddenly dies. Some people recover rapidly from life’s calamities and disappointments, whereas others are devastated by minor setbacks, becoming depressed and even...
Scientific American Mind: Misery in MotherhoodThe psychologist smiles at Manuela, a new mother in her late thirties. “Please play with your baby for two minutes,” the therapist instructs her and then leaves the room. Two video cameras film Manuela (which is not her real name) and her...

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