Thursday, March 25, 2010

Singing at America House on Linden Road

We are getting to the point where we have regular fans among the people who watch our shows at America House on Linden Road. It is fun to see them every month or so. It is also fun to try to give them a song which they may not have heard in awhile. I do enjoy going over there.

We have another show at the Pines on Davison Road next Monday. I am looking forward to it. We are doing more four-part harmony. I really have to push my range to do first tenor at this age. *It would be better if I could go to second.

Tuesday, March 23, 2010

The Hobbit's Predecessors



Long before a 'hobbit' species of human lived on Indonesia's Flores island, other human-like creatures colonised the area. That much was clear.
But scientists have now been able to date their presence to at least one million years ago - some 120,000 years earlier than previously recognised.
The team reports the discovery of these humans' tools in the journal Nature.

Possibly, the hobbit's ancestors were a more primitive humanoid which had migrated out of Africa at an earlier date.

Sunday, March 14, 2010

Evolution of Mineral Species

I do, however, want to emphasize one intriguing
insight: most of Earth’s thousands of minerals
owe their existence to the development of life
on the planet. If you think of all the nonliving
world as a stage on which life plays out its evolutionary
drama, think again. The actors renovated
their theater along the way. This observation
also has implications for the quest to find
signs of life on other worlds. Sturdy minerals
rather than fragile organic remains may provide
the most robust and lasting signs of biology.

Scientific American reported on most minerals evolving from life over the last 2 billion years. A few minerals had existed before the Sun's ignition about 4.6 Billion years ago. About 250 minerals formed at that time and still exist. The began to form planetesimals which grew as time passed and collusions took place. Finally, a massive collision took place between the primitive Earth and the Moon.

The Majority of minerals arrived after the great oxidation event about 2billion years ago. This was caused by photosynthesis from blue-green algae. About 2500 new minerals arose.

Then came a billion year period that was relatively quiet. That's called the Boring Billion. About 800 million years ago most of the Earth's continents were clumped along the equator in a land-mass called Rodinia. For the next 200 million years the Earth cycled from snowball to hot box and back. The Glaciation moved minerals around along.

About 460 million years ago, the first land plants, mosses, arose. By the Devonian period, 400 million years ago the Earth had a modern look. Earth's near surface minerology was strikingly modern too.

Conclusions for future research demand that only planets with life would have the oxygen for extensive ocidation.

Viewing minerals in an evolutionary context
also elucidates a more general theme of evolving
systems throughout the cosmos. Simple states
evolve into increasingly complicated states in
many contexts: the evolution of chemical elements
in stars, mineral evolution in planets, the
molecular evolution that leads to the origin of
life, and the familiar biological evolution
through Darwinian natural selection.

From Robert M. Hazen. in Scientific American March 2010

Wednesday, August 5, 2009

Scientists Program Blood Stem Cells To Become Vision Cells

Scientists Program Blood Stem Cells To Become Vision Cells
University of Florida researchers were able to program bone marrow stem cells to repair damaged retinas in mice, suggesting a potential treatment for one of the most common causes of vision loss in older people.


This cure is almost too good to be true.

Friday, November 14, 2008

Creationists declare war over the brain


"YOU cannot overestimate," thundered psychiatrist Jeffrey Schwartz, "how threatened the scientific establishment is by the fact that it now looks like the materialist paradigm is genuinely breaking down. You're gonna hear a lot in the next calendar year about... how Darwin's explanation of how human intelligence arose is the only scientific way of doing it... I'm asking us as a world community to go out there and tell the scientific establishment, enough is enough! Materialism needs to start fading away and non-materialist causation needs to be understood as part of natural reality."


His enthusiasm was met with much applause from the audience gathered at the UN's east Manhattan conference hall on 11 September for an international symposium called Beyond the Mind-Body Problem: New Paradigms in the Science of Consciousness. Earlier Mario Beauregard, a researcher in neuroscience at the University of Montreal, Canada, and co-author of The Spiritual Brain: A neuroscientist's case for the existence of the soul, told the audience that the "battle" between "maverick" scientists like himself and those who "believe the mind is what the brain does" is a "cultural war".




http://www.newscientist.com/article/mg20026793.000-creationists-declare-war-over-the-brain.html?full=true

New Scientist has raised a flag on a new area of discussion in the ID debate.  The article is filled with names and ideas that could be followed up on.  The discussion might even spread concepts on consciousness.



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Wednesday, November 5, 2008

Blue Brain has a competitor

 Researchers have recently constructed a new computer model of the cortex of the human brain. This model is similar in principle to the more well known Blue Brain computer model, but it simulates a much larger area of the brain. It actually less detailed at the neuron level when compared to Blue Brain. The BluTags: , e Brain project has already simulated a section of the rat’s brain that is named the neocortex. The Blue Brain computer simulation has successfully modeled approximately 10,000 neurons including near 30 million synapses
This other computer simulation, however, has successfully modeled about a trillion neurons and almost a quadrillion synapses. This specific computer model is able to model the entire thalamo-cortical system of a mammillian brain. Apparently, the researchers have made of simulation of this brain region because is is involved in creating concious awareness.
his computer simulation of the human brain will allow scientists to carry out a variety of different experiments that are not currently possible to do. It will enable researchers to gain a much better insight into the workings of the brain. Things that are normally very hard to do on brain wetware may easily be done on the computer model. Researchers will have much more leeway in carrying out different experiments on this virtual brain. The computer model will allow scientists to carry out experiments that are impossible from a physical or ethical standpoint.
This computer model will enable the simulation of almost any type of brain disorder. This is a very exciting possiblity that could help a tremendous amount of people. Researchers intend to investigate disorders such as Parkinson’s disease, Alzheimer’s disease and other psychiatric disorders. The scientists also intend to investigate the effects of pharmaceutical drugs on this computer brain model. This may lead to faster FDA approval for brain drugs.
The researchers also want to learn more about consciousness and how it is constructed. I have serious doubts as to whether the computer model will actually be able to model consciousness. However, this new computer model will likely give scientists a much greater understanding of how the human brain functions. Overall, the research is extremely interesting and it has quite a few potential benefits in advancing our knowledge of the brain.


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