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Amazing Facts

Why Blood Clots Are Stretchy
February 27, 2008
A team of biophysicists at University of Illinois ran a computation for six months to find out why blood clots are stretchy.  The primary protein in the clot, fibrinogen, can stretch two to three times its resting size.  By studying the force on every atom in the protein, Science Daily said, they produced a force […]
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Early Man

Paleofantasy: Brain Evolution Is Mere Storytelling
February 22, 2008
When it comes to explaining the brain, evolutionists are completely in the dark.  That was the surprising message in a presentation to the annual meeting of the American Association for the Advancement of Science by Harvard evolutionist Richard Lewontin.  James Randerson blogged the presentation in the UK Guardian, beginning, “We know nothing about brain evolution.  […]
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Health

For Healthy Society, Father Knows Best
February 18, 2008
Science Proves Common Sense Dept.  Swedish scientists have found that “Children Who Have An Active Father Figure Have Fewer Psychological And Behavioral Problems,” according to a report on Science Daily.  In addition, “Children who lived with both a mother and father figure also had less behavioural problems than those who just lived with their mother.”  […]
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Human Body

Fast Protein Fine-Tunes the Ear
February 13, 2008
A protein helps the human ear respond to volume differences over 12 orders of magnitude.
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Health

Beat the Crowds: Go Outdoors
February 4, 2008
Fewer people are feeling close to nature, said a report on PhysOrg.  According to a study done by Oliver Pergams (U of Illinois) and Patricia Zaradic (Environmental Leadership Program, Pennsylvania), a decline in visitation at national parks corresponds to an increase in sedentary activities like playing video games, surfing the Internet and watching movies.  They […]
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Amazing Facts

Getting a Hand on Facts and Meanings
January 24, 2008
What could be more simple than pressing a button with your finger?  That “seemingly trivial action is the result of a complex neuro-motor-mechanical process orchestrated with precision timing by the brain, nervous system and muscles of the hand.”  So says a press release from University of Southern California posted on EurekAlert.     Simple, everyday […]
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Astronomy

Zatta Fact?  “Scientific Facts” Evolve
January 14, 2008
Every once in awhile it is good to be reminded that “scientific facts” are in a constant state of revision.  Here are some recent examples of scientists with surprised looks on their faces: Cholesterol for health:  Surprise, says EurekAlert: cholesterol may actually pose health benefits.  “… don’t push aside bacon and eggs just yet,” it […]
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Human Body

Humans Excel at… Please Wait… Patience
January 14, 2008
Here’s another thing that distinguishes humans from animals: patience.  Current Biology usually has a “Quick Guide” feature on some aspect of biology.  In the latest issue, patience was the patient.  First of all, what is it? Humans and other animals often make decisions that trade off present and future benefits.  Should a monkey eat an […]
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Cell Biology

Stem Cells: It’s a New Ball Game
January 10, 2008
A year ago, the ethical battle over human embryonic stem cells was raging.  Now, both Science and Nature have acknowledged that the new induced pluripotent stem cell technology (see 11/20/2007) has opened up a new era that may make embryonic stem cells practically obsolete.     Martin Pera, writing in Nature1, left open only a […]
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Dumb Ideas

The Evolutionary Inference
January 7, 2008
Today’s Darwinian Just-So Story comes from a paper in PNAS.1  Three Italian scientists did experiments on the perception of two-day old human infants.  They found that the babies tended to pay more attention to biological motion than non-biological motion, and looked longer at right-side-up displays than upside-down ones.  Their conclusion: “These data support the hypothesis […]
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Health

Your Body Says: Resolve to Exercise
December 26, 2007
Even moderate exercise can prevent health risks, an article in Science Daily says.  Want to keep the waist trim?  Reduce the bad cholesterol and triglycerides, and increase your HDLs?  Want to lower your risk of diabetes, heart attack and stroke?  Then get out and walk.  You don’t have to become a jogger or gym addict.  […]
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Cell Biology

Will Adult Stem Cells Cure Sickle Cell Anemia?
December 9, 2007
It’s been just weeks since two labs announced success harvesting pluripotent stem cells from skin cells (11/20/2007), and already beneficial applications are in sight.  Science Daily and Live Science reported on initial tests that show the new “induced pluripotent stem cells” offer hope for millions afflicted with sickle-cell anemia.  Though it’s too early to tell […]
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Amazing Facts

What Keeps Skin Strong? Velcro!
December 8, 2007
Skin would fall to pieces were it not for velcro-like molecules that bind its cells together.  These molecules, called cadherins, make skin strong but also supple.  Their secret was explained by Ashraf Al-Amoudi of the European Molecular Biology Laboratory, quoted in Live Science.  “The trick is that each cadherin binds twice: once to a molecule […]
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Amazing Facts

Dealing with Light at the Extremes
November 28, 2007
“Light is the most important variable in our environment,” wrote Edith Widder, a marine biologist.  The inhabitants of two different ecosystems have to deal with either too little or too much.  Let your light so shine:  A thousand meters below the sea surface, all sunlight is extinguished.  Yet for thousands of meters more, creatures live […]
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Human Body

The Brain Evolved!… Didn’t It?
November 9, 2007
Evolutionary neurologists are so absolutely sure the human brain is a product of evolution from lower primates over millions of years, they are able to talk openly and frankly about problems with the particulars.  But in reading some of their own reviews of current ideas, it is not clear which has been evolving: the brain […]
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