Author Archives: curiouscat

Trieste Science Prize Winners 2008

Beatriz Barbuy, an eminent Brazilian astrophysicist who has made a major contribution to the study of the evolution of the chemical composition of stars, and Roddam Narasimha, an internationally renowned Indian engineer and physicist whose work in fluid dynamics has increased our understanding of turbulence, have been awarded the 2008 Trieste Science Prize.
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Barbuy’s research has shed light on the formation of the Milky Way through studies of its oldest components. She was the first to demonstrate that metal-poor stars in the galactic halo (the faint sphere surrounding the galactic disk) have an overabundance of oxygen, relative to iron. This indicates that the halo was chemically enriched by ‘supernova’ explosions of massive first-generation stars, which may have been 500 times the size of the sun.

Hydrogen and helium were the only elements produced in abundance during the formation of the first generation of stars. All of the heavier elements, which astronomers call ‘metals’, were subsequently produced by stars through nuclear fusion. At the end of a star’s life, some of these elements were recycled into the stellar medium, from which the next generation of stars (with greater ‘metallicity’) was born.
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Narasimha’s contributions have extended to aircraft design, monsoon predictions and the prospects of using wind energy in rural India. He has also conducted important work on shock wave structure and turbulent shear flows. He is best known for his research on the transitions between laminar and turbulent flows. ‘Laminar flow’ is the smooth movement of fluid (for example, air or water) in parallel layers or paths (streamlines). Turbulence is the chaotic movement of fluid.

A search for the hidden order in chaos has been a fundamental motif of Narasimha’s work. His path-breaking research includes examinations of the ways in which chaos can arise from ordered motion and the structure and memory of fully turbulent flows.

The prize is awarded to outstanding scientists living and working in the developing world. Winners share a US$100,000 cash award.

The Fall of Spore

image from Spore game

The hype for Spore as it was being developed was grand, and I was intrigued. Unfortunately the compromises I have read about have been disappointing. Seed has written about the development of the game in The Creation Simulation

This was Spore’s central problem: Could the game be both scientifically accurate and fun? The prototyping teams were becoming lost in their scientific interests.
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Spore’s decision”‰—”‰to preserve the illusion of life at the expense of the actual facts of life”‰—”‰made for some substantial casualties. First to go in the cute-versus-science war were the extreme ends of the scale”‰—”‰galaxy formation and origins of life simulation”‰—”‰dismissed as being too abstract and dissipated. Next, small and then big laws were shattered and remade. Wright’s determination to represent faster-than-light travel as impossible crumbled in the face of making the spacefaring section of the game enjoyable. Evolution, despite his staunch Darwinism, became a massively telescoped process that depended on the external, deliberate interventions of the players. And so, instead of becoming the ultimate science project, Spore gradually became the ultimate game.

The snag is that Spore didn’t just jettison half its science”‰—”‰it replaced it with systems and ideas that run the risk of being actively misleading. Scientists brought in to evaluate the game for potential education projects recoiled as it became increasingly evident that the game broke many more scientific laws than it obeyed.

I can understand this process and even admit it might be the right choice for those involved. I am just disappointed we don’t have what was imagined (and hyped) early on – a great, fun, learning environment to enjoy and learn from.

The game has an amazingly low 1 1/2 star rating on Amazon with 3,121 reviews (I have never seen anything so popular so disliked on Amazon). Some of the disappointment is in the compromises made but I know a bunch is for the hated digital rights management DRM used by Spore.

Science, Engineering and Math Fellowships

I work at the American Society for Engineering Education as an Information Technology Program Manager (this blog is not affiliated with ASEE). A large portion of the computer applications I work on are related to the science and engineering fellowships we administer. The fellowship applications are all open now (for certain fields the NSF application deadline is next week). Those fellowships include:

National Science Foundation Graduate Research Fellowship has the earliest deadline, starting November 3rd for some while some fields are as late as November 12th. The fellowship provides support for 3 years (a yearly stipend of $30,000 plus educational expense) to approximately 1,000 students and is open to most science, engineering and math fields.
National Defense Science and Engineering Graduate Fellowship applications are accepted until January 5th, 2009. 200 students receive $31,000 for 3 years plus educational expenses.
Science, Mathematics And Research for Transformation Scholarship for Service Program is another Department of Defense fellowship with a deadline of December 15th, 2008. This program offers awards to 200 science and engineering undergraduate and graduate students with awards between $25,000 and $41,000 a year as well as education expenses, health insurance, internships and employment placement after graduation.
NASA Aeronautics Scholarship offers 20 two-year undergraduate scholarships and 5 two-year graduate scholarships to students in Aeronautics and related fields. The deadline is January 16th, 2009.

Other scholarships and fellowships (these are not managed by ASEE): Gates Millennium Scholars Program (January 12th deadline) – NASA Graduate Student Researchers (February 1st) – Goldwater Science Scholarships (January 30th)

Atlantic Hurricane Season 2008

photo of hurricane evacuation sign

Here is a nice post on weather and understanding data – Atlantic Hurricane Season 2008

A well-accepted metric which convolves storm frequency, intensity, and duration is called accumulate cyclone energy (ACE) and is calculated very simply: take the maximum sustained winds reported by the NHC every 6-hours for all storms (> 34 knots), square this value, and sum over the entire lifetime, then divide by 10,000. In 2007, even though there were also 15 storms, the ACE was only 72 compared to 132 for 2008 with the same number of named storms. This is partially because the storms in 2008 were much longer lived especially Bertha.
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When encapsulated in the recent active period in North Atlantic activity (1995-2007), 2008 experienced normal or expected activity as measured by ACE. In terms of a long-term climatology, either the last 30 or 65 years, 2008 is clearly an above average year.

Data can’t lie but mistaken assumptions can lead you to form mistaken impressions. If you believe the number of named storms = hurricane activity and then are surprised that in fact there was many more days of hurricane activity it is not because the data lied but because you didn’t understand what the data represented.

Friday Fun: Octopus Juggling Fellow Aquarium Occupants

photo of Otto the Octopus

Otto the octopus wreaks havoc

Otto is constantly craving for attention and always comes up with new stunts so we have realised we will have to keep more careful eye on him – and also perhaps give him a few more toys to play with.

“Once we saw him juggling the hermit crabs in his tank, another time he threw stones against the glass damaging it. And from time to time he completely re-arranges his tank to make it suit his own taste better – much to the distress of his fellow tank inhabitants.”

Staff believe that the octopus called Otto had been annoyed by the bright light shining into his aquarium and had discovered he could extinguish it by climbing onto the rim of his tank and squirting a jet of water in its direction. The short-circuit had baffled electricians as well as staff at the Sea Star Aquarium in Coburg, Germany, who decided to take shifts sleeping on the floor to find out what caused the mysterious blackouts.

Diabetes Up 90% in USA Since 1997

Diabetes Up 90% in U.S.

Type 2 diabetes is up 90% since 1997. And that may be an underestimate because the numbers come from self-reported surveys conducted by the CDC in 1995-1997 and in 2005-2007. About a third of people with diabetes don’t yet know they have the dangerous disease.
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“The growth in diabetes prevalence has been concomitant with growth in obesity prevalence,”
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Obesity, the CDC says, is the major risk factor for diabetes. Yet it’s not necessary to become thin to avoid this debilitating disease. A study of people at high risk for diabetes shows you can cut your risk of diabetes by 58% in a three-year period by doing just two things:

* Lose 5% to 10% of your body weight.
* Five days a week, get 30 minutes of moderate physical activity.

76 Nobel Laureates in Science Endorse Obama

76 Nobel Laureates in Science Endorse Obama!. This is the largest number of Nobel laureates to endorse anything according to that post. Letter:

An Open Letter to the American People

This year’s presidential election is among the most significant in our nation’s history. The country urgently needs a visionary leader who can ensure the future of our traditional strengths in science and technology and who can harness those strengths to address many of our greatest problems: energy, disease, climate change, security, and economic competitiveness.

We are convinced that Senator Barack Obama is such a leader, and we urge you to join us in supporting him.

During the administration of George W. Bush, vital parts of our country’s scientific enterprise have been
damaged by stagnant or declining federal support. The government’s scientific advisory process has been distorted by political considerations. As a result, our once dominant position in the scientific world has been shaken and our prosperity has been placed at risk. We have lost time critical for the development of new ways to provide energy, treat disease, reverse climate change, strengthen our security, and improve our economy.

We have watched Senator Obama’s approach to these issues with admiration. We especially applaud his emphasis during the campaign on the power of science and technology to enhance our nation’s
competitiveness. In particular, we support the measures he plans to take – through new initiatives in
education and training, expanded research funding, an unbiased process for obtaining scientific advice, and an appropriate balance of basic and applied research – to meet the nation’s and the world’s most urgent needs.

Senator Obama understands that Presidential leadership and federal investments in science and technology are crucial elements in successful governance of the world’s leading country. We hope you will join us as we work together to ensure his election in November.

Signed,

Alexei Arikosov, Physics, 2003
Peter Agre, Chemistry, 2003
Sidney Altman, Chemistry, 1989
Philip W. Anderson, Physics, 1977
Richard Axel, Medicine, 2004
David Baltimore, Medicine, 1975
Baruj Benacerraf, Medicine, 1980
Paul Berg, Chemistry, 1980
J. Michael Bishop, Medicine, 1989
N. Bloembergen, Physics, 1981
Michael S. Brown, Medicine, 1985
Linda B. Buck, Medicine, 2004 Continue reading →

Copper Doorknobs and Faucets Kill 95% of Superbugs

Copper door handles and taps kill 95% of superbugs in hospitals

A study found that copper fittings rapidly killed bugs on hospital wards, succeeding where other infection control measures failed.
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It is thought the metal ‘suffocates’ germs, preventing them breathing. It may also stop them from feeding and destroy their DNA. Lab tests show that the metal kills off the deadly MRSA and C difficile superbugs. It also kills other dangerous germs, including the flu virus and the E coli food poisoning bug.
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Researcher Professor Peter Lambert, of Aston University, Birmingham, said: ‘The numbers decreased always on copper but not on the steel surfaces.’
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The healing power of copper has been recognised for thousands of years. More than 4,000 years ago, the Egyptians used it to sterilise wounds and drinking water and the Aztecs treated skin conditions with the metal. The ancient Greeks also knew of its benefits. Hippocrates, sometimes called ‘the father of medicine’, noted that it could be used to treat leg ulcers.

NFL Stars no Match for Bacteria

NFL stars no match for bacteria

The problem came to the forefront last week with Cleveland Browns player Kellen Winslow, who recently had his second staph infection. He is reportedly the sixth player to acquire staph among the Browns in five years.
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Peyton Manning of the Indianapolis Colts was revealed to have a staph infection, the Indianapolis Star reported Friday. University of North Carolina-Asheville fans also recently learned that Kenny George, the 7-foot-7 center on the basketball team, had a staph infection complication that led to part of his foot being amputated. It’s unclear how these high-profile athletes acquired their infections, but locker rooms have been found to habor staph bacteria in previous outbreaks.
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A study on the St. Louis Rams published in the New England Journal of Medicine in 2003 found that during the 2003 football season, there were eight MRSA infections among five of the 58 Rams players.

Vampire Moth Discovered

Entomologist Jennifer Zaspel at the University of Florida in Gainesville said the discovery suggests the moth population could be on an “evolutionary trajectory” away from other C. thalictri populations.

In January, she will compare the Russian population’s DNA to that of other populations and other species to confirm her suspicions. “Based on geography, based on behavior, and based on a phenotypic variation we saw in the wing pattern, we can speculate that this represents something different, something new,” Zaspel said.
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Only male moths exhibit blood feeding, she noted, raising the possibility that as in some species of butterflies and other moths, the Russian moths do it to pass on salt to females during copulation.

“There is no evidence it prolongs the life of the male, or anything like that,” she said. “So we suspect that it is probably going to the female.” The sexual gift, she said, would provide a nutritional boost to young larvae that feed on leaf-rich, but sodium-poor, diets.