Science2.0

Neurotoxin: Mining The Clostridium Botulinum Genome

Science2.0 - May 14, 2013 - 11:08pm

The toxin that causes botulism is the most potent that we know of - just 1/1,000th the weight of a grain of salt can be fatal, which is why so much effort has been put into keeping Clostridium botulinum, which produces the toxin, out of our food.


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The Mechanics Of Slithering

Science2.0 - May 14, 2013 - 6:04pm
“Previous studies of slithering have rested on the assumption that snakes slither by pushing laterally against rocks and branches.” explain a joint research team from the Applied Mathematics Laboratory, Courant Institute of Mathematical Sciences, of New York University and the Departments of Mechanical Engineering and Biology, at the Georgia Institute of Technology.
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Astronaut Releases Highest-Budget Music Video Ever

Science2.0 - May 14, 2013 - 4:43pm
The music-recording industry has been under pressure lately, as it struggles to adapt to the age of the internet.  This is the second major structural revolution to challenge the recording industry in the past few decades, the first being when video killed the radio star.  Music videos surged in popularity (and budget) in the '90s, but during the '00s (pronounced "uh-ohs") music video budgets seemed to have plateaued and begun to decline.  In fact, just 3 of the 20 most expensive (inflation-adjusted) music videos of all time were produced after 2000.  The most expensive of all time remains Michael and Janet Jackson's "Scream" at $10 million.
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Hips Don't Lie: What Neil Shubin And Shakira Know In Common

Science2.0 - May 14, 2013 - 3:30pm

The evolution of the complex, weight-bearing hips of walking animals from the basic hips of fish was a much simpler process than previously thought, according to a new paper.

Tetrapods, four-legged animals, first came to land about 395 million years ago - a significant step, literally and figuratively, and it was made possible by strong hipbones and a connection through the spine via an ilium, features that were not present in the fish ancestors of tetrapods. 


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J147 Reverses Memory Deficits In Mice With Alzheimer's Disease

Science2.0 - May 14, 2013 - 2:30pm

The drug candidate J147 was able to reverse memory deficits and improve several aspects of brain function in mice with advanced symptoms of Alzheimer's disease, according to a new study.  


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Tooth Regeneration - What Alligator Stem Cells Can Teach Us

Science2.0 - May 14, 2013 - 2:30pm

Unique cellular and molecular mechanisms behind tooth renewal in American alligators may help science learn how to stimulate tooth regeneration in people, according to a new study.

We regenerate teeth now. We grow baby teeth and then we replace those with adult teeth.  Yet most vertebrates can replace teeth throughout their lives and we cannot, despite the lingering presence of dental lamina, a band of epithelial tissue crucial to tooth development. Because alligators have well-organized teeth with similar form and structure as mammalian teeth and are capable of lifelong tooth renewal, the authors reasoned that they might serve as models for mammalian tooth replacement. 


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Let Them Eat Bugs

Science2.0 - May 14, 2013 - 1:26pm
There are some places where food is easy to grow and some where it is not. Nature is not fair.

Expecting companies in countries with food to ship it everywhere for free is not practical and the poorest people don't have the money to import food, so they are stuck in a hunger Catch-22. There are differing schools of thought on how to solve the problem.

The positive approach - science - is to make it possible for food to grow in areas where food cannot grow now. Plants can be optimized scientifically to thrive in areas where they ordinarily would not. Then there is a less positive approach; tell poor people to eat bugs.
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BEER Method Of Finding Planets Scores Its First Discovery

Science2.0 - May 13, 2013 - 7:56pm

Detecting alien worlds is a significant challenge since they are small, faint, and close to their stars. The two most prolific techniques for finding exoplanets are radial velocity (looking for wobbling stars) and transits (looking for dimming stars). 

A team at Tel Aviv University and the Harvard-Smithsonian Center for Astrophysics (CfA) has just discovered an exoplanet and the planet they found, Kepler-76b, was identified by the BEER algorithm; an acronym for relativistic BEaming, Ellipsoidal, and Reflection/emission modulations. BEER was developed by Professor Tsevi Mazeh and his student, Simchon Faigler, at Tel Aviv University in Israel and is a new method that relies on Einstein's special theory of relativity.


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The Center Of The Earth Is Out Of Sync

Science2.0 - May 13, 2013 - 6:35pm
We all know that the Earth is in constant motion, rotating beneath our feet, but new research in Nature Geoscience reveals that the center of the Earth is out of sync with the rest of the planet and is frequently speeding up and slowing down.

Associate Professor Hrvoje Tkalcic from the ANU College of Physical and Mathematical Sciences and his team used earthquake doublets to measure the rotation speed of Earth’s inner core over the last 50 years and discovered that not only did the inner core rotate at a different rate to the mantle – the layer between the core and the crust that makes up most of the planet’s interior – but its rotation speed was variable.
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Forget Science, Fracking Must Go

Science2.0 - May 13, 2013 - 3:48pm
Responsible energy production would seem to have an obvious positive roadmap; have energy companies include environmental groups in guiding pollution standards and participating in studies about natural gas extraction.

But for entrenched constituencies, that is unacceptable.
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Using Nanostructured Photonic Materials, Outer Space Can Replace Some Air Conditioners

Science2.0 - May 13, 2013 - 2:19pm
Rather than Draconian measures to cut emissions, which will impact people in various regions and economic spheres unfairly, a better solution may be to simply keep places cooler on hot days, which will reduce fuel needed for air conditioning.

And outer space can help, Stanford researchers say. They designed an entirely new form of cooling structure that cools even when the sun is shining - by reflecting sunlight back into the chilly vacuum of space. 
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Nitrate Can Take A Decade To Affect Water Quality

Science2.0 - May 13, 2013 - 2:00pm
The movement of nitrate through groundwater to streams can take decades to occur and that long lag time means that changes in the use of nitrogen-based fertilizer (the typical source of nitrate) may take decades to be fully observed in streams, according to a recent study.

Water quality experts have been noting in recent years that nitrate trends in streams and rivers do not match their expectations based on reduced regional use of nitrogen-based fertilizer.  The long travel times of groundwater discharge, like those documented in this study, have previously been suggested as the likely factor responsible for these observations.

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Utricularia Gibba: Carnivorous Plant Deletes Its Own Noncoding "Junk" DNA

Science2.0 - May 12, 2013 - 8:06pm

The large majority of non-coding DNA, which is abundant in many living things, may not actually be needed for complex life in at least one carnivorous plant, Utricularia gibba, according to a paper in Nature.

U. gibba,  the carnivorous bladderwort plant, genome is the smallest ever to be sequenced from a complex, multicellular plant. The researchers who sequenced it say that 97 percent of the genome consists of genes — bits of DNA that code for proteins — and small pieces of DNA that control those genes.


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Pollution And Parliament

Science2.0 - May 12, 2013 - 3:57pm
Pollution and Parliament

Is carbon dioxide a pollutant ?

I am old enough to remember the great smog and the 1953 flood.  There is nothing like a first-hand view of nature in the raw to make a person environmentally aware.  It was in the 1950s at the age of about 6 or 7 that I learned how coal was made out of vegetable matter in nature's own pressure cooker.  The origin of coal was so widely known that it was often called 'bottled sunshine'.
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Hornswoggled With A Boondoggle

Science2.0 - May 12, 2013 - 1:50am
Hornswoggled with a Boondoggle

Etymology isn't a true science, but any etymologist worthy of the name needs to adopt scientific methods if he or she is to avoid falling into the trap of producing another piece of false etymology.

That's etymology, but if you mouth entomology, as many of your peers do, I had as lief an insect spoke my lines.  
(Hamlet  Act 3, Scene 2 - almost.)

I had as lief an insect spoke my lines -->

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Civil War CSI: Did Stonewall Jackson Die From Pneumonia?

Science2.0 - May 11, 2013 - 4:43pm
Legendary Confederate fighter Thomas J. "Stonewall" Jackson died 150 years ago but the actual cause of his death has been a subject of debate. And it was again at the 20th annual Historical Clinicopathological Conference in Maryland.

Jackson got the nickname "Stonewall" from Confederate General Barnard E. Bee, when he moved an artillery battery up to support Bee's troops as they retreated at the First Battle of Bull Run (called First Manassas by Confederate troops)(1). Bee said of the mostly unheralded Colonel, "There is Jackson standing like a stone wall. Let us determine to die here, and we will conquer. Rally behind the Virginians."
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CDF Memories, Circa 1992

Science2.0 - May 11, 2013 - 3:46pm
In 1992 the top quark had not been discovered yet, and it did not make much sense for the CDF collaboration to have a full meeting devoted solely to it; rather, analyses targeting the search of the top quark were presented at a meeting which dealt with both bottom and top quarks. This was called back then "Heavy Flavour meeting".
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A Tribute To Richard Feynman: Feynman Point Pilish Poems 2013

Science2.0 - May 11, 2013 - 4:56am
Richard Feynman was born on 11 May 1918. Today would have been his 95th birthday. This isn’t a paean to a physicist – it could be, but I’m sure millions of words have been published on this – but a game for wordsmiths and numberphiles.

Within the highly restricted format of the Pilish Poem, the aim is to be both enlightening and eloquent; plus to have some fun playing around.You can follow my train of thoughts at my first article on this so, without repeating myself, I’ll jump right in with the basic rules of what constitutes a Feyman Point Pilish Poem.
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Completely Objective Resolution Of The Who To Sacrifice Dilemma

Science2.0 - May 11, 2013 - 3:07am

The well-known moral dilemma about sacrificing a few to save many has now been answered by extraction of empirical data from conceivable parallel worlds via obvious-operators instantiated in neural networks that were tuned by evolutionary algorithms into weak quantum measurement of counterfactuals. The scientists came up with an intriguing variation of the traditional setup:

There are three gondolas suspended from cables over an abyss, all attached to one main beam which will break soon if not at least one gondola’s cable is cut.

The gondolas are prepared as follows:

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