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Nov 28, 20070

Our Conflicted Government

Tags: Economics, Graphics, Health

Sometimes the right picture is worth more than a thousand words. There's a fine art to representing data to clearly illuminate an issue, and this one takes my nomination for the graph of the year. This graphic comparing our government's nutritional recommendations to its actual spending tells the story of money (from lobbyists) over morals.Hat tip to Sean over at Cosmic Variance and Ezra Klein.

Sep 26, 20070

Man Survives Chair Leg Penetrating Eye and Throat

Tags: Health

I don't usually like to post morbid stories, but this one takes the cake as far as medical miracles go.Hat tip goes to BoingBoing on catching this one.Here is an MRI image of a fellow who survived having a metal chair leg impale his skill through his eye socket all the way down to his throat. Not only did he survive, it looks like he will keep his vision. He's even forgiven the fellow who threw the chair!

Oct 26, 20061

Diet For Energy Independence

Tags: Health, Math

In a paper scheduled to appear in the Engineering Economist, Laura McLay and Sheldon Jacobsen have determined that growing obesity across the US is imposing even more of an economic impact than the often-reported health care costs of treating its side effects such as type 2 Diabetes.It should come as no surprise to anyone with any Physics background at all that it takes more energy to move more mass around. "The obesity rate among U.S. adults doubled from 1987 to 2003, from about 15% to more than 30%. Also, the average weight for American men was 191 pounds in 2002 and 164 pounds for women, about 25 pounds heavier than in 1960, government figures show."Using those weight figured combined with statistics on 2003 driving habits, it is pretty straightforward to conclude that about 39 million gallons of additional fuel are used each year for every pound of average weight increase across the US.So relative to our svelte 1960 profiles, at a gas price of $3.00 per gallon the US is consuming around an extra $3 billion of oil for automotive fuel a year simply because we are getting fatter. And then there's the issue of airline fuel costs ...

Oct 26, 20061

Nursery Rhyme Cures Speechlessness

Tags: Health

Scott Adams, the creator of the famous series of Dilbert cartoons, lost his voice 18 months ago from a condition called Spasmodic Dysphonia, in which that part of the brain which controls the muscles around the vocal cords malfunctions and either shuts down or spasms. No one has ever recovered from this condition before. Adams, however, persisted in experimenting with his remaining speech function for over 18 months of fruitless efforts to finally discover that he could speak normally when rhyming. With a little more concerted effort around the rhyming, he has now almost fully recovered. Read the amazing story here on his blog. It is a fantastic example of the wonders and complexities of the human brain, and a testament to the power of perseverance and open-minded discipline in experimentation and the scientific method.

Oct 12, 20062

Brain-Computer Interface: "Look Ma! No Hands!"

Tags: Health, Science, Technology

I have long been confident that within my lifetime, there would come a day when we will no longer need keyboards to control our computers. Our minds will be coupled directly to computer systems to control everything from prosthetic limbs and memory and sensory augmentation devices to vehicles in addition to the more pedestrian computer programs such as word processors and spreadsheets. Perhaps a couple of generations down the line, we will be implanting cellular phones transmitters. We will eventually reach out and touch someone with a mere thought.What I failed to appreciate, however, was that "within my lifetime," which I had optimistically hoped would extend to somewhere past 2040 or so, is starting to look more like "within the next couple of decades."Eric C. Leuthardt, M.D., an assistant professor of neurological surgery at the WUSTL school of Medicine, and Daniel Moran, Ph.D., assistant professor of biomedical engineering,were able to decode signals from a sensory grid implanted on the surface of a teenager's brain, and train the teen to control (what else?) a video game using only his imagination. (See a video of the truly wired teen here.)With the increasing use of Functional MRI as ...

Sep 26, 20060

If Only My Biology Teacher Had Drawn This Well

Tags: Graphics, Health, Science

Check out this blackboard photo of Caryn Babaian's anatomy lesson at Bucks County Community College.

Sep 23, 20060

Visible Gene Expression

Tags: Health, Science, Technology

Yao and Webb just published an awesome article in Nature vol. 442 that included some incredible photos that resolved the actual activation of a gene in real-time. Webb, a physicist from Cornell, pioneered the multi-photon fluorescence microscopy that made the images possible.The results were stunning. "Within two weeks we had spectacular pictures," said Lis. The images included pictures of the genes (hsp70 genes) that protect flies from the effects of extreme heat. By cranking up the heat, the researchers could activate these genes, and by using fruit flies specifically bred to carry fluorescent proteins on HSF, they could watch the transcription factors in action. "This is the first time ever that anyone has been able to see in detail, at native genes in vivo, how a transcription factor is turned on, and how it then is activated," said Webb.I couldn't imagine a more fantastic application of new optical imaging technology than to look into the very fundamental mechanisms of life and actually see them unfold before our eyes.

Sep 13, 20060

Eight Americas Details

Tags: Education, Health, Math, Science

Many of you probably caught the story posted in USA Today about life-expectancy variations across the US. But in my effort to bring science closer to the common man, I would like to recommend everyone check out the actual research paper online. You can find "Eight Americas: Investigating Mortality Disparities across Races, Counties, and Race-Counties in the United States" by Christopher J. L. Murray1,2,3, Sandeep C. Kulkarni2,4, Catherine Michaud2,3, Niels Tomijima3, Maria T. Bulzacchelli3, Terrell J. Iandiorio3, Majid Ezzati1,2* on the Public Library of Science web site.There are some very interesting details that never made it into the more distributed articles.This graphic depicts County life expectancies by Race and Sex.A) Life expectancy at birth for black males and females. Only counties with more than five deaths for any 5-y age group (0–85) were mapped, to avoid unstable results.(B) Life expectancy at birth for white males and females.Just the distribution of Blacks in America is interesting alone, not to mention the life expectancy variations. This next graph shows the results of a clustering analysis that was able to detect 8 broad clusters of citizenry that displayed common health statistics.Here is how Life expectancy by ...

Sep 7, 20060

Evolving Germs

Tags: Evolution, Health

For anyone that still harbors doubts about the validity of evolutionary theories, just stay away from South Africa and your ignorance shouldn't hurt you immediately. For the rest of us Darwinists, our most recent vindication is rather unfortunate.The World Health Organization is now organizing an urgent meeting because a new Drug-resistant strain of Tuberculosis has EVOLVED to such an extent that it is virtually untreatable with any commonly available medication. Worse, it has already been transmitted worldwide.Now, after a sprinkling of cases across the globe, a particularly virulent outbreak has arisen in South Africa. "This deadly strain of tuberculosis has killed 52 of 53 people infected in the last year in South Africa," the World Health Organization said on Friday, calling for improved measures to treat and diagnose the bacteria. "The strain was discovered in Kwazulu-Natal, and is classified as extremely drug-resistant. Drugs from three of the six second-line medicines, used as a last line of defense against TB, proved useless against the new strain. "We are extremely worried about the issue of extreme drug resistance," said Paul Nunn, coordinator of the WHO's drug resistance department. "If countries don't have the diagnostic capacity to ...

Sep 2, 20060

Living Cell Visualizations

Tags: Graphics, Health, Science

Harvard University recently commissioned XVIVO's animation studio to develop realistic computer graphics animations of biological processes for instructional purposes. Some of their first work was presented at Siggraph 2006. Check out "The Inner Life of the Cell" In the meantime, here are some stills from the mini-movie. High cool.

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