Category Archives: Life Science

Science 2.0 – Biology

OpenWetWare (OWW) is an effort to promote the sharing of information, know-how, and wisdom among researchers and groups who are working in biology and biological engineering.

“OWW provides a place for labs, individuals, and groups to organize their own information and collaborate with others easily and efficiently. In the process, we hope that OWW will not only lead to greater collaboration between member groups, but also provide a useful information portal to our colleagues, and ultimately the rest of the world.”
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Food Health Policy Blog

Rudd Sound Bites is a new blog (May 2006) on obesity research from the Rudd Center for Food Policy and Obesity.

This is a great example of pursuing a role to educate the public and create a public discussion of important issues. From what I see so far I think this will be a great way to do what they entend: “encourage global discussion of front burner news and the most critical issues regarding food policy and obesity.”

This is just the begining. They have not achieved much yet, that I can see. But they are on a path that will get them what they seek, I believe.

Good job.

Bacteria Living in Glacier

photo of sulfur stained snow in the Artic

Arctic Expedition lead by the Arctic Institute of North America to explore bacteria living in an artic glacier. The photo shows sulfur site with living bacteria.

More information on the study:

Grasby also sent some of the water and mineral samples to specialized laboratories to investigate whether bacteria or other microbes may have been involved in the precipitation of native sulfur and vaterite. Cell counts and DNA analyses confirm that cold-loving bacteria are present in the spring system. It appears that complex communities of bacteria live within the ice system, and that microbially mediated sulfate reduction is probably widespread.

NASA took interest in this evidence of life in extreme conditions.

Following publication of a first article describing the new discovery, astrophysicists and planetary scientists associated with NASA expressed the views that this unique example of life in an extreme ecosystem (bacteria living within or beneath a glacier and performing mineral transformation on Ellesmere Island is an extreme ecosystem) may actually be a perfect analogue to what life may look like on another planetary body of our Solar System – Europa – a moon of Jupiter.

Bacteria Sprout Conducting Nanowires

photo of Bacteria with Conducting Nanowires

Bacteria made to sprout conducting nanowires by Mason Inman

Bacteria that use sugars and sewage as fuel are being investigated as a pollution-free source of electricity. They feed by plucking electrons from atoms in their fuel and dumping them onto the oxygen or metal atoms in the mixture. The transfer of the electrons creates a current, and connecting the bacteria to an electrode in a microbial fuel cell will generate electricity, although not necessarily very efficiently.

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Genetically Engineered Machines Competition

Princeton Center for Innovation in Engineering Education post on Genetic Machines Competition.

Find up to date information on the International Genetically Engineered Machine (iGEM) competition:

We believe in the possibility of engineered biological systems, but the only way to test such an engineering hypothesis is to try it practically. The iGEM competition facilitates this by asking students to design and build genetic machines. This generates practical data on the feasibility of engineering biology, and also on best practices. It also provides a powerful educational experience for the students working to overcome the many technical challenges.

This seems like an effort that is properly focused and is applying sensible management and technology to achieve the goals. A very nice things to find.

Previous post on 2005 intercollegiate Genetically Engineered Machine competition – looking at Davidson College students, where I graduated – John. While Dad graduated from Princeton 🙂

Teams lay BioBrick foundation for genetic engineering article from MIT.

Meerkats Teach Their Young

School is in for meerkat youngsters (broken link – poor usability):

Researchers from the University of Cambridge in England observed meerkats gradually introducing cubs to prey, showing them how to handle captured insects and even removing the stingers from scorpions before giving them to youngsters.

“Although there are anecdotal reports of teaching in species from chimpanzees to killer whales, until this year solid evidence was really lacking,” said Alex Thornton, co-author of the report appearing in Friday’s issue of the journal Science.
…
Animals teaching their young is probably more common than it appears, Hopp said, but “a clear demonstration, and particularly in a wild population, is the uncommon part.”

“Thus, I think this paper is important, as it makes a clear and unambiguous case for the teaching behavior,” he said.

Bye Bye Bees

Photo of a bee

The Vanishing by Sharon Levy:

One-third of the food we eat comes from crops that need animal pollinators, a role often filled by bees but sometimes by butterflies, beetles, birds, or bats. Bee-pollinated foods include squash, tomatoes, peppers, apples, and pears. Unfortunately, the honeybees surrounding me are members of a threatened tribe, whose loss would have a dire effect on farmers, not to mention everyone who eats fruits and vegetables.

This problem has been increasing in recent years.

Fees for renting beehives shot up from about $48 to as much as $140 per colony, a previously unheard-of amount. Beekeepers traveled from as far away as Florida and North Carolina to service California’s almond groves. For the first time in 50 years, U.S. borders were opened to honeybees from New Zealand and Australia. The fate of a $1.2 billion crop — more than half of all almond production worldwide — rested on the slender back of the embattled honeybee.

Natural systems seem so powerful that it hardly seems possible that running low on bees is really a concern. But more and more such stories (fish stocks being wiped out…) are being told. This is one of many reasons we need more scientists to study these areas and keep society informed. Enjoy reading this article it is a great example of science, scientific study, communicating scientific knowledge and the impact on society.

Photo by Justin Hunter

Classic Botanical Illustrations Presented Poorly

Classic Botanical Illustration, A Curious Herbal by Elizabeth Blackwell. The British Museum has made this fantastic material available online. Unfortunately they have done it with an absolutely horrible way. So you can experience “turning pages” they force you to download extra software.

Then you get to try turning pages in the book. Go ahead and try, its like an arcade game trying to figure out exactly how the mouse has to move to actually let you get to the next page. Ok, I exaggerate a bit but I can tell you this – let 10 average web users try to view this book and they will have great difficulty. Museums should not be so out of touch with the public that they produce such fancy unusable stuff. There is no reason this material shouldn’t be presented in a very user friendly way. Nothing of value is gained for all the pain they inflict with their unusable format.

They really need to put whoever approved this setup back in some part of the British Museum that doesn’t have to keep up with technology. Then they should either hire someone from Jakob Neilsen, Jared Spool or 37 Signals organizations to run their online activities or get the name of someone from those organizations that can help them. Because they have great content to share and they need to do much better than this.

Frankly it isn’t really worth going through all that unless you really really want to see the book or you have already learned how to use poorly designed interfaces. You also need to have permission and the ability to download a plugin to your computer. The bozos also don’t even provide a way to link to the book. Go ahead and go to the British Museum site and look around and you will find it eventually.

The Future of Science

Speculation on the Future of Science, summary of a Kevin Kelly speech by Stewart Brand (co-founder and co-chairman of The Long Now Foundation. He is the founder of the Whole Earth Catalog).

The articles notes steps along the path to the current state of science, including:

1590 — Controlled experiment (Roger Bacon)
1609 — Telescopes and microscopes
1665 — Repeatability (Robert Boyle)
1665 — Scholarly journals
1687 — Hypothesis/prediction (Isaac Newton)
1926 — Randomized design (Ronald Fisher)
1950 — Double blind experiment

Then he discusses 5 ideas for the next 100 years.

1) “There will be more change in the next 50 years of science than in the last 400 years.”
2) “This will be a century of biology.”
3) “Computers will keep leading to new ways of science.”
4) “New ways of knowing will emerge.”
5) “Science will create new levels of meaning.”

It is wonderful to see such interesting ideas online and easily accessible to over one billion people. Yes there is a great deal of worthless stuff avoid (and some worthless stuff to enjoy) to find all the wonderful stuff. But the amount of wonderful science and engineering material available online provides great hope for what the future will bring.

update: see Kevin Kelly present at Google – more Google Engineering talks.

Ants on Stilts for Science

Ant on stilts

When Ants Go Marching, They Count Their Steps by Bjorn Carey

One is that they do it like honeybees and remember visual cues, but experiments revealed ants can navigate in the dark and even blindfolded. Another disproved hypothesis was that because ants scurry at a steady pace, they could time how long it took them to get to and fro. Other studies have shown that once ants find a good source of food, they teach other ants how to find it.

The ant “pedometer” technique was first proposed in 1904, but it remained untested until now.

Scientists trained desert ants, Cataglyphis fortis, to walk along a straight path from their nest entrance to a feeder 30 feet away. If the nest or feeder was moved, the ants would break from their straight path after reaching the anticipated spot and search for their goal.

A simple example of the scientific process (another one posted yesterday about birds and global warming).
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