Monday, September 29, 2008
Existing anti-obesity drugs may be effective against the flu, hepatitis and HIV
This new study gives promise to fighting these tough diseases. Since viral infections such as diabetes and HIV are multiplied by an increase in a cell's metabolism, current anti-obesity drugs that inhibit this behaviour could stop them from replicating. Two relatively new fields of science, metabolomics and fluxomics have started to take focus on this virus-fighting treatment.
Scientists create stem cells without cancerous side effects
The science of stem cell research has taken another step forward, sort of. Scientists are working to improve the science of creating stem cells from adult cells. This eliminates the need for using an embryo to extract cells from. The science behind this process is complex to say the least. Adult cells are extracted, then infused with a virus. The virus alters the cell into a embryotic state. This change allows the cells to grow into other forms of tissue.
Previous work on this science relied on retroviruses, which lead to unpredictable mutations and cancerous cell transformations. This new study uses adenoviruses which have not yielded cancerous cells. The drawback of this is that only 1 in 10,000 to 100,000 adult cells transform into embryotic cells. This is lower than the 1 in 1,000 transformation rate acquired with the use of retroviruses. This success rate will hopefully increase as this new science continues to be researched.
Thursday, September 25, 2008
Wave farm technology sets sail
The first commercial wave farm was recently installed off the coast of Portugal. This 2.25 megawatt generator will be able to power 1500 homes. The large, snake-like farm is attached to hydraulic pistons, which it reciprocates as the waves traverse its structure. One of the major issues for this science is the large amount of stress it encounters from the violent ocean current. Being that this is the first of its kinda, it is likely that there will be problems to resolve. However, problems like this generally lead to solutions for better, more robust designs. If this project works, a 21 megwatt wave farm will be installed (powering 15,000 homes). Other European countires are embracing this science. Scotland plans to have a wave farm installed in the near future as well. Wave farm technology would be viable in the United States as well. Utilizing the current along the coastlines could prove to be a valuable asset to coastal cities. This would also eliminate the problem of transporting energy over long distances that current wind and solar technologies face.
The science of windpower takes to the skies
http://discovermagazine.com/2008/oct/24-high-flying-windmills-blow-away-their-ground-based-cousins
Scientists are starting to see their ideas come to fruition with high flying windmills. This idea that was hatched several years ago is starting to take strides forward, with prototypes being made. These "flying windmills" are suspended several hundred meters above the ground, where the wind speeds are higher and less interfeared than on the ground. There are a few challenges to getting this new science up and running, including the consideration of wheter lightning strikes will affect the turbines, as well as developing a reliable way to anchor them to the ground. This technology, while less astetically pleasing than traditional wind turbines, has potential to generate an enormous amount of power (up to 250 times more than ground-based wind turbines). This is a big step forward for wind power production.
Tuesday, September 23, 2008
Balloon-shaped solar cells
Sometimes the best ideas in science are the simplest and often slip through the complex thought process many scientists go through when developing new ideas. These balloon-shaped solar cells are designed to concentrate light onto a focal point (thus allowing the solar cell to create more energy than it would when receiving normal, unfocused sunlight). Due to the simplicity of this design, costs can be considerably lower than a conventional solar cell field. Providing a cheaper alternative to current energy producing methods has been a constant battle for the field of renewable energy, and this new idea is on the right track.
Articles on the history of the Large Hadron Collider
http://discovermagazine.com/2008/sep/10-an-essential-concise-history-of-the-lhc
The Large Hadron Collider (LHC) - the next BIG thing in science. This article is a collection of other articles focusing on the history of the LHC and some of the issues that had to be resolved before it could operate.
Gene therapy restores sight to the blind
Gene therapy takes another stride forward in this study. Scientists were able to improve the vision of test subjects with a vision disorder called Leber congenital amaurosis. Gene therapy allows scientists to replace defective genes, thus allowing normal functions to resume. This growing field of science looks to stop potential blindness in children, as well as restore vision to adults.
Friday, September 19, 2008
New galaxy stuffed with dark matter discovered by scientists
The science of dark matter keeps giving us clues as to how the galaxy is laid out. This new discovery has scientists re-thinking the composition of the universe. They are now convinced that most galaxies are dull and filled with dark matter, rather than being dominated by luminous objects.
Thursday, September 18, 2008
A presidential science debate
http://www.sciam.com/podcast/episode.cfm?id=3E266FAE-D9C3-DAB6-A69CA7D4A2FEE2B0
Another podcast focusing on the need for a science based future in America. Unfortunately, since politicians are not scientists, they focus on science related issues that are merely hot button subjects such as stem cell research and climate change, rather than a science based future for America. This podcast also brings up an article in the magazine Science that claims 90 percent of the worlds scientists and engineers will live in Asia by 2010.
Science and America's future
I found this podcast quite interesting. It discusses the relation between science and the future of America. Obviously a lot of innovation and forward movement is centered around science. This podcast describes how many scientific facilities are necessary to aid companies in their research. Many other countries have began to centralize their future around science and I believe it is necessary that America do the same.
The science of how your brain translates 2-D images to 3-D
This article discusses the science behind our brain's visual interpretation of images. It also gives examples of how wildlife uses this to its advantage to hide or trick predators. Studies have shown that our visual interpretation of images is based on the assumption that light is always shining down on an object. A few illustrations in the article display how this works. The science of visual interpretation is complicated, but we are gaining more understanding on how our brain interprets images and the assumptions this complecated system makes.
Could an inner zombie be controlling your brain
One again the ever-growing science of understanding the brain has discovered something new and interesting. This article describes how scientists have found that a lot of brain functions we once thought were controlled consciously are actually controlled by the unconscious part of the brain. The science on this is vague and only appears in certain situations, but it certainly has given a new insight to our neural world.
Tuesday, September 16, 2008
Molcule found in red wine may be key to slow signs of aging
The compound resveratrol could be the key ingredient in the fountain of youth according to new scientific studies. Studies performed on mice have shown the molecules affects on delaying aging. Drinking a glass of wine per day won't exactly do the trick, the amount of resveratrol given to the mice was equal to consuming 1,000 bottles of wine a day. Compounds are being made that are more easily absorbed into the body and have higher concentrations that what occurs naturally in wine. Could science be nearing the key to longer life? Studies have not been performed on humans yet, and will take years for results to show, but current studies show promise.
Tuesday, September 9, 2008
Scientists on the verge of creating new lifeform
http://blog.wired.com/wiredscience/2008/09/biologists-on-t.html?npu=1&mbid=yhp
Scientists in a Harvard Medical lab (led by Jack Szostak) have been building cell models which are getting closer and closer to resembling life. The latest success has been getting genetic information inside the cells to replicate (one of the definitions of life). It is impossible to say where this science will lead to or what evolutionary path the life will follow, if created successfully, but needless to say, this is exciting research.
Genetically engineered bug could produce cheap biofuel
This new finding describes how these new genetically engineered bugs could produce biofuel at higher temperatures and cheaper than previous methods. The bugs can operate at temperatures around 122 degrees F, rather than previous ones which topped out at 98.6 degrees F. This allows scientists to decrease the amount of the expensive enzyme used by 2.5 times. The production methods used by scientists also rely on switch grass and cornstalks, rather than using eatable food crops.
Wednesday, September 3, 2008
Great science related websites
www.sciam.com - Scientific magazine with many free articles online. Scientific American also publishes Scientific American Mind and Scientific American Body. Everything is written so even those with little to no science background can understand and enjoy them.
discovermagazine.com - Another great science related magazine.
www.fqxi.org - Listings of science related articles written by various people (educators and students) on a number of subjects. More technical than the other 2 sites.
The second coming of biofuels
This latest article from Discover magazine sheds light on a new form of biofuel: green fuel. Unlike other biofuels which are derived from soy, this fuel comes from plant waste or algae. Useable fuel from algae can be produced at 35 times the yield that soy currently produces.
This new scientific finding has companies such as UOP (a main proprietor of green fuel) realizing that the future of automobile fuel will most likely be a combination of petro and non-petro fuel. The process in which to derive fuel from algae requires a small amount of petro fuel. However, unlike other renewable fuels, green fuel can be created in the same petro-producing facilities that stand today- thus eliminating the need for a change in infrastructure.
I see this as the next big thing for companies invested in the renewable fuels field to invest both time and money into. It's promise of a higher yield and relative ease of production make it a great prospect to get America off foreign fuels.