Scientists Search for Clues To Bee Mystery

Honey Bees Give Clues on Virus Spread by Carl Zimmer

Now, as farmers wait anxiously to see if the honeybees will suffer again this spring, the true cause of CCD remains murky. Skeptics have raised many reasons to doubt that Australian viruses are to blame. In Australia, bees that get Israeli acute paralytic virus don’t get sick, and the country has had no reports of CCD. And in places where honeybee colonies are collapsing — Greece, Poland, Spain — there are no imported Australian bees. These are not the sort of patterns you’d expect, the skeptics say, if Australian viruses were killing American bees.
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Whether scientists look inside a honeybee or look at the entire biosphere, nature is proving to be awesomely intricate. In the oceans and the soil, metagenomics is revealing millions of different kinds of microbes, with an almost inconceivable diversity of viruses shuttling between them, carrying genes from host to host. But we have almost no idea how these menageries work together, either in the biosphere or inside a host like a honeybee — or a human. Many of the microbes that metagenomics is revealing are entirely new to science. As genetic databases fill with DNA sequences from millions of new species, our scientific wisdom lags far behind.

How true. Watching as scientists try to work out what is going on with Colony Collapse Disorder is a great lesson in how scientists search for answers. As I stated earlier much of science is not about simple obvious truths but a search through confusing signs to try and determine what is going on. Answering why, is not always so easy as it appears when someone has already found the answer and posted it online.

Bats Are Dying in North-East USA

Vet College scientists aid investigation of why bats in Northeast are mysteriously dying By Krishna Ramanujan

Bat specialists from the New York State Department of Conservation (NYSDEC) have found 15 sites, up from four discovered last year, with sick bats: one in Massachusetts, two in Vermont and 12 in New York between Albany and Watertown. To help diagnose the problem, NYSDEC scientists are sending samples to Beth Buckles, assistant professor of biomedical sciences in Cornell’s College of Veterinary Medicine.

The affected bats are mostly little brown bats (Myotis lucifugus), among the most common North American bats. Other affected bats include the endangered Indiana bat (Myotis Sodalis), the northern long-eared bat (Myotis septentrionalis) and the eastern pipistrelle (Perimyotis subflavus). The bats live year round in the general area of study and usually hibernate each winter in the same caves.

Buckles and colleagues are conducting postmortem exams of organs and tissues and testing for signs of inflammation, bacteria, viruses and toxins. So far, the researchers do not yet know what is causing the massive casualties, Buckles said. “We have some good leads. We are continuing to look for infectious causes and are developing protocols to assess the bats’ metabolic states. They may not have enough fat to make it through the winter,” she said.

Many of the sick bats have a white fungus growing on their faces, are very thin and are congregating near to the cave entrances, a habit of ill bats. But it is “unprecedented” to find so many sick bats grouped near cave entrances, said Buckles. In two caves the researchers studied last year — that together had an estimated 18,000 bats — up to 97 percent died. The caves found this year may hold between 150,000 and 200,000 bats, many of them sick.

Related: Nectar-Feeding Bats – Bye Bye Bees

Electron Filmed for the First Time

Now it is possible to see a movie of an electron. The movie shows how an electron rides on a light wave after just having been pulled away from an atom. This is the first time an electron has ever been filmed. Previously it has been impossible to photograph electrons since their extremely high velocities have produced blurry pictures. In order to capture these rapid events, extremely short flashes of light are necessary, but such flashes were not previously available.

With the use of a newly developed technology for generating short pulses from intense laser light, so-called attosecond pulses, scientists at the Lund University Faculty of Engineering in Sweden have managed to capture the electron motion for the first time. “It takes about 150 attoseconds for an electron to circle the nucleus of an atom. An attosecond is 10-18 seconds long, or, expressed in another way: an attosecond is related to a second as a second is related to the age of the universe,” says Johan Mauritsson, an assistant professor in atomic physics at the Faculty of Engineering, Lund University.

Scientists also hope to find out more about what happens with the rest of the atom when an inner electron leaves it, for instance how and when the other electrons fill in the gap that is created. “What we are doing is pure basic research. If there happen to be future applications, they will have to be seen as a bonus,” adds Johan Mauritsson. The length of the film corresponds to a single oscillation of the light, but the speed has then been ratcheted down considerably so that we can watch it. The filmed sequence shows the energy distribution of the electron and is therefore not a film in the usual sense.

Photo: Experimental results obtained in helium at an intensity of 1:2 x 1013 W=c/m2 are shown. The results are
distinctively different from those taken in argon (Fig. 1).With this higher intensity, more momentum is transferred to the electrons, and in combination with the lower initial energy, some electrons return to the atomic potential for further interaction. In the first panel, we compare the experimental results (right) with theoretical calculations (left) obtained for the same conditions.
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Thailand’s Contribution to the ISEF

Intel to send 5 to US

Intel Microelectronics (Thailand) Ltd is sponsoring five young Thai students to participate in the 59th Intel International Science and Engineering Fair (Intel ISEF) in Atlanta, Georgia
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Two of the individual entries are a musical instrument sound analysis and recognition system, which won the first prize in the computer science category, and was developed by Boonyarit Somrealvongkul, and a method of measuring a curved path’s radius with a modified car, which took first prize in the engineering category and was developed by Ronnapee Chaichaowarat.

The third project is a team entry, “New Plywood Products”, the first prize winner in the environmental science category, developed by Pheemadej Prasitwarawej, Tanavorakit Bangkeaw and Manapas Hararak, from Montfort College, Chiang Mai.

Over 1,500 of the brightest young scientists from around the world attend the fair every year, where they share ideas, showcase cutting-edge science projects and compete for more than $3 million (94.5 million baht) in awards and scholarships.

Cats Prevent Heart Attacks

I suppose some people don’t know how great cats are 🙂 Here is news of a study showing that those with cats are less likely to have heart attacks.

Whether it’s a frisky kitten or a tubby tabby, a cat at home could cut your heart attack risk by almost a third, a new study suggests.
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In the new study, Qureshi’s team analyzed data on 4,435 Americans, aged 30 to 75, who took part in the federal government’s second National Health and Nutrition Examination Study, which ran from 1976-1980. According to the data in the survey, 2,435 of the participants either owned a cat or had owned a cat in the past, while the remaining 2,000 had never done so.

Qureshi’s team then tracked rates of death from all causes, including heart and stroke. Cat owners “appeared to have a lower rate of dying from heart attacks” over 10 years of follow-up compared to feline-free folk, Qureshi said. The magnitude of the effect — a 30 percent reduction in heart attack risk — “was a little bit surprising,” he added. “We certainly expected an effect, because we thought that there was a biologically plausible mechanism at work. But the magnitude of the effect was hard to predict.”

This is just one more example of cat power. As we have shown before: cats can be photographers and also protect you from bears.

Have a nice weekend.

Google Lunar X Prize – First 10 Teams

The X PRIZE Foundation and Google, Inc. today announced the first ten teams to register for the Google Lunar X PRIZE, a robotic race to the Moon to win a remarkable $30 million in prizes. This international group of teams will compete to land a privately funded robotic craft on the Moon that is capable of roaming the lunar surface for at least 500 meters and sending video, images and data back to the Earth.

“We are excited that ten teams from around the world have taken up the challenge of the Google Lunar X PRIZE,” said Megan Smith, Google’s Vice President for New Business Development. “We look forward to the exciting achievements and scientific advancements that will result from the efforts of these teams as they participate in the next great space race.”

The 10 fully registered teams now:

Aeronautics and Cosmonautics Romanian Association (ARCA): Based in Valcea, Romania and led by Dumitru Popescu, ARCA was also a contender in the Ansari X PRIZE. Two of ARCA’s most innovative projects to date have been the Demonstrator 2B rocket and Stabilo, a two-stage manned suborbital air-launched vehicle. The craft they plan to enter in the Google Lunar X PRIZE will be called the “European Lunar Explorer.”

Astrobotic: Team Astrobotic, led by Dr. William “Red” Whittaker, was formed to coordinate the efforts of Carnegie Mellon University, Raytheon Company and additional institutions. One of Carnegie Mellon’s specialties is autonomous navigation through stereo vision and other technologies. This enables Carnegie Mellon’s robots to automatically avoid obstacles and select their own route across unmapped terrain. Astrobotic will compete for the prize using their “Artemis Lander” and “Red Rover.”
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Leafhopper Feeding a Gecko

Some of this stuff is just fun. The leafhopper feeds on the sap of the tree. And the Gecko will stop by and wait to be fed. The narrator explains that scientists have not determined why this happens, perhaps the Gecko keeps aware predators? That seems somewhat flimsy as a guess to me but what do I know. The narrator does say that the sweet honeydew is what remains from the sap once the leafhopper has extracted the protein.

High School Students in USA, China and India

2 million minutes is a documentary film looking at education in USA, China and India. The producers offer a blog, What Should America Do?, which is interesting.

this blog offers deeper insights into education in China, India and the United States, and the challenge America faces. Now you can join a dialog about what governments, communities and families should and are doing to best prepare US students for satisfying careers in the 21st century.

U.S. Students Can’t Compete in High-Tech World

The film follows two students from Carmel High School in Indianapolis, as well as two students from India and two from China. The premise is that they all have roughly 2 million minutes in high school to build their intellectual foundation and prepare for college and a career.

Twenty months in the making, “2 Million Minutes” highlights the pressures and priorities of these students and their families. Ultimately, it provides insight into the changing nature of competition in a technology-based global economy.
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“As a high-tech entrepreneur and venture capitalist for the past 25 years,” Compton said,” I can tell you the people who have reaped the greatest economic rewards in the past two decades have been those with the most rigorous and thorough understanding of technology — and thus a solid foundation in math and science — and who have an ability to solve problems and possess entrepreneurial skill.”

I strongly agree with the economic benefits from strong science and engineering education and the personal benefit of science and technology expertise (one small example: S&P 500 CEOs – Again Engineering Graduates Lead).

See some of our previous posts on similar matters: The Importance of Science Education – USA Teens 29th in Science – Scientific Illiteracy – Fun k-12 Science and Engineering Learning – Diplomacy and Science Excellence – Lego Learning

The Economic Consequences of Investing in Science Education

My comments on: National Association of High School Principals Takes Exception to Two Million Minutes

Thanks for saying what has to be said. I have talked on similar themes on my blog for awhile now. The USA is definitely losing its relative position as the clear leader for science and engineering excellence.

The debate now whether we are willing to invest more today to slow the decline or whether we are willing to risk the economic future where our centers of science and engineering excellence are eclipsed quickly.

There is a long lag time that has allowed us to coast for the last 30 or so years. The reality is that most Americans suffer under the illusion we are in the same position we were in 1970’s. We are not and it is obvious to me that the economic impacts are starting to have dramatic effects now and it will only increase.

It might be more pleasant to explain why the USA is fine the way it is but that is a mistake. For more on my thoughts see two categories of the Curious Cat Science and Engineering Blog: Economics and primary science education and 2 posts: The Future is Engineering and the Political Impact of Global Technology Excellence.

Leaping Tigress

The pregnant tigress, in the photo, had wandered off the Sunderbans Tiger Reserve to a village, Deulbari, about 150 miles south of Calcutta. She was tranquillized and relocated deep inside a mangrove reserve (it is unclear if this is a different reserve than she came from based on the report, to me anyway). She is leaping off the fishing vessel used to transport her to the reserve.

Tigress’s spectacular leap to freedom

Tigers have been slowly disappearing from forests and reserves in India due to poaching, growing tourism, and a shortage of properly trained forest guards. The tiger population has dropped from nearly 3,600 five years ago to about 1,411, the government-run Project Tiger said recently.