Showing posts with label RESEARCH. Show all posts
Showing posts with label RESEARCH. Show all posts

2007-09-09

Open Media Content

Occasionally on this blog I make strong criticisms of Copyright Law. Given the recent controversy of the BBC iPlayer OS limitation and DRM, I would like to state unequivocally that publicly sponsored media including NPR, PBS, BBC, CBC, ABC, etc, should all be licenced as Creative Commons or similar licence. The distribution of such content should therefore not be distributed with DRM but rather under the most cost effective means to deliver the information to the masses and allow even the "mashup" or editing and redistribution of such content with the appropriate credit and disclaimers. This would also apply to scientific articles supported by publicly funded research. In that case, all research materials including lab notebooks and instrument readouts should be published freely in the public domain excluding information which could violate personal privacy or public (National) security.

2007-06-15

Another Successful SCRAM Jet Test

SCRAM Jet engines offer the potential for up to Mach 15 atmospheric flight. At these speeds, one could fly from Ney York to Syndey in under 2 hours. Satellites could also be launched into orbit much more cheaply with a SCRAM jet than with rockets alone since rockets must carry their oxidiser. Unlike traditional jet engines, SCRAM jets have no moving parts and rely on air compression alone to ignite fuel at very high speeds.

While wind tunnel experiments have shown the potential of SCRAM jets for many years, expensive field tests have been rare but promising. Reuters reports that another successful field test has been carried out over the Australian outback. The experiment results from the collaboration of the Austrialian Defence Science and Technology Organisation and the American Defense Advanced Research Projects Agency (DARPA). DARPA, the original creator of the Internet, is one of the few truly profitable and effective components of the United States military.

*Update* I have been informed by an esteemed SCRAM Jet research engineer at Cal Tech that depending on fuel, the theoretical maximum speed could be as high as M 25.

2007-01-25

The Neurology of Addiction

An interesting article from the NY Times concerning the insula of the brain.

2007-01-18

A Warning

Recently, Winnipeg scientists have resurrected the H1N1 influenza virus of 1918 which killed 50 million people with a death rate of 2%. The procedure by which the virus was resurrected was impressive and hopefully will lead to a defence against H5N1 or other future influenzas. Nothing against the Winnipeg scientists nor their research, but it is reminiscent of a very dangerous scenario which must be addressed:

In the brilliant Terry Gilliam film '12 Monkeys' (torrent), a lab scientist working silently develops a virus to wipe out 95% of mankind while making the surface of the Earth uninhabitable. There is a sizable population of humanity who in light of the continued and seemingly inevitable destruction of Earth's biodiversity caused by one single species, would support a mechanism to eliminate that species and the threat by whatever means necessary. The only practical means of carrying this out would be the development of an airborne, highly infectious and deadly virus with a long incubation period. While your average misanthrope is not determined enough to wipe out mankind, a motivated biologist who not so abnormally values non-human life on the same scale as human life could very easily rationalise and carry out the decision to develop the ultimate weapon of mass destruction. I have met several people who in principle are not opposed to such an idea leading me to completely reconsider the likelihood of this event.

Biological science should not be stopped for fear of this scenario. While oversight should be strengthened especially where virus work is concerned, security and oversight in the field should not interfere with scientific progress.

Life on this planet will go on with or without humanity. Humanity surely has many thousands more species to eliminate forever, but the real question is whether humanity itself will survive. Ultimately, humanity's probability of survival is directly proportional to its degree of conservation and stewardship of other life on the planet. Given our current direction, I am betting on 12 Monkeys, this time without the time travel.

2007-01-12

Domestication

This article about genetically engineering complacent zombie animals indifferent to their treatment or conditions reminds me of the Ameglian Major Cow from the 'Hitchhiker's Guide to the Galaxy' (part 5) by Douglas Adams. The cow politely offers parts of his body for fine dining.

..."May I urge you to try my liver, it must be very rich and tender by now, I have been force feeding it for months?"

Arthur, disgusted asks, "Is there any reason why I shouldn’t have a green salad?"

The cow replies, "I know many vegetables who are very clear o­n that point sir, which was why it was decided to cut through that whole problem by breeding an animal that actually wanted to be eaten."


While the satire of Adams is proving remarkably prescient, targeted OGM domestication of plants and animals is no different from the millenia of breeding or 'artificial selection' which has produced such agriculturally useful organisms as we have now. Comparing a chihuahua with a wild wolf, one has a sense of revulsion in realising that the chihuahua was the product of human will upon the wolf for in some sense a crime has been committed against nature. However, this act is ultimately no different from the domestication of any other organism. GM is nothing more than the targeted acceleration of the inevitable process of artificial selection and should be embraced despite the 'yuck' factor.

In many ways, humans with less 'yuck' sensibility have a significant survival advantage over those with it in a biotechnology driven world making it somewhat inevitable. I encourage the rest of my species to get over their fears now. Realise the benefits of OGM, and focus on reaping the multifarious benefits it has to offer.

In Defence of the Chimera

This Economist opinion article provides a defence for the creation of chimeras and encourages the expansion of this line of research.

*Update* A classic amusing post from DeLong from a while ago.

2006-12-22

Ketamine

A friend of mine this week participated in an Army research study to test the effect of low dose ketamine on functional and cognitive ability. This research may have implications to administering ketamine as a less impairing analgesic for soldiers than opiates. The doses were so low that he experienced none of the effects of anaesthetic levels such as dissociative or out of body experiences to his chagrin. He was quite pleased to have tried this controlled substance in a safe and legal context whilst being paid and contributing to the advancement of medical science. Ketamine perfectly illustrates the deleterious effect of puritanical political leaders and lawmakers on medicine, scientific research, freedom, and safety. To paraphrase Orwell, the 'War on Drugs' is a war by the State upon its own citizens, and has little to do with the destructive impact of drugs on people's lives. Fearful of corrupt local law enforcement, and unable to access proper medical care or quality drugs as ravers and other users have been driven deeper underground. In such a miasma, Scientific researchers are unable to properly analyse the effects of the drug over the relatively large preexisting population of users. This translates to loss of life, poor health, and needless suffering for soldier and citizen alike.

I have previously mentioned ketamine.

2006-12-05

Genetic Diversity

New genetic data reveals what most of us already know intuitively, genetic diversity is much more varied and complex than previous studies and textbooks would suggest - statements like "We share 99.5% of our genes with one another." Previous studies did not properly measure the level of copies or deletions among individuals. The existence of high genetic variation makes sense given the large differences seen among humans, but similarly reflects the overall health of our species. Genetic diversity can be thought of as genetic wealth. Genetic poverty, a lack of diversity, comes from intense stress, isolation, or bottlenecking of a population which surely has occurred in the past for almost every species alive today. Indeed, the eugenicists of the twentieth century had their priorities completely backwards. This new understanding of genetic diversity will also help to better treat genetic diseases which are rapidly becoming the limiting factor on human health as infectious disease and malnutrition wane.

2006-12-04

Autistic Savants

The line between extreme mental capability and extreme handicap is a very thin one. I recommend this documentary "Brainman" featuring particularly Daniel Tammet who is lucky enough to be both extremely capable in memory and calculation while remaining relatively well adjusted to society and able to communicate his thought processes normally. The documentary features the real Rainman as well as Cambridge Prof. Simon Baron-Cohen, a renowned authority on autism and second cousin to legendary comedian Sacha Baron-Cohen.

2006-11-20

DARPA Challenge

DARPA, the defense research agency responsible for the creation of the Internet, presented the Grand Challenge the last two years where a vehicle had to negotiate 132 miles of rugged terrain in under 10 hours. After no entrants finished the first year, several automated vehicles finished the second year giving great promise for the future of cheap, efficient and safe autonomous vehicle transit. It is impressive how such low budget competitions can through hype and prestige induce enormous advances in technological development. I highly recommend watching this inspiring Horizon documentary on the races.

2006-10-23

Possible Treatment for Alzheimer's Disease

In research by Gary Wenk on Alzheimer's model rats funded by the US Government, a synthetic cannabinoid agonist with anti-inflammatory properties was shown to improve memory and orientation. The study reveals further medical uses of cannabis, a plant whose usefulness has been understood for millenia.

2006-10-02

What is Life?

Is each individual cell of a complex organism equivalent to the entire organism. Genetically speaking, yes. This has now been demonstrated. An entire mouse has been generated from a single non-reproductive blood cell. An egg cell was also used, but eggs are not themselves viable nor reproductive. This finding makes it clear that there is nothing particularly special about an embryonic stem cell from a philosophical point of view. Real scientists have known this for years despite what religious or political forces may imagine. In 'Monty Python's The Meaning of Life' there is the song 'Every Sperm is Sacred.' This parody of absurd religious thinking now should to be changed to 'Every Cell is Sacred.'

People should have the right to reproduce as they see fit assuming they have paid their dues/taxes to society and are not through recklessness creating a malformed or diseased offspring in an artificial way. Scientists should have the right to experiment with whatever cells they want to which are created artificially and have no possibility of causing human suffering.

2006-09-12

Fascinating Science

It appears some sheep depend on a retrovirus to reproduce.