Biosingularity

Archive for January 2008

Why do some people solve problems more creatively than others? Are people who think creatively somehow different from those who tend to think in a more methodical fashion?

These questions are part of a long-standing debate, with some researchers arguing that what we call “creative thought” and “noncreative thought” are not basically different. If this is the case, then people who are thought of as creative do not really think in a fundamentally different way from those who are thought of as noncreative. On the other side of this debate, some researchers have argued that creative thought is fundamentally different from other forms of thought. If this is true, then those who tend to think creatively really are somehow different.
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Researchers at the Picower Institute for Learning and Memory at MIT report in the Jan. 24 online edition of Science that they have created a way to see, for the first time, the effect of blocking and unblocking a single neural circuit in a living animal.

This revolutionary method allowed Susumu Tonegawa, Picower Professor of Biology and Neuroscience, and colleagues to see how bypassing a major memory-forming circuit in the brain affected learning and memory in mice.

mouse hippocampus

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Genes have the ability to recognise similarities in each other from a distance, without any proteins or other biological molecules aiding the process, according to new research. This discovery could explain how similar genes find each other and group together in order to perform key processes involved in the evolution of species.
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Bacteria have evolved complex mechanisms called quorum sensing systems that provide for cell-to-cell communication, an adaptation that allows them to wait until their population grows large enough before mounting an attack on a host or competing for nutrients. Lianhong Sun, a chemical engineer at the University of Massachusetts Amherst, has engineered one of these systems to create genetic switches that could lower the cost of producing therapeutic proteins and pharmaceuticals.
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What if swallowing a pill with a camera could detect the earliest signs of cancer? The tiny camera is designed to take high-quality, color pictures in confined spaces. Such a device could find warning signs of esophageal cancer, the fastest growing cancer in the United States.
A fundamentally new design has created a smaller endoscope that is more comfortable for the patient and cheaper to use than current technology. Its first use on a human, scanning for early signs of esophageal cancer, will be reported in an upcoming issue of IEEE Transactions on Biomedical Engineering. Read the rest of this entry »

By now, everyone knows that overweight people have a higher risk of heart attacks, strokes and other problems that arise from clogged, hardened arteries. And people who carry their extra weight around their waist – giving them a “beer belly” or an “apple” shape — have the highest risk of all.But despite the impact on human health, the reasons behind this connection between heart disease and belly fat – also known as visceral fat — have eluded scientists. Now, a new study in mice gives the first direct evidence of why this link might exist – and a tantalizing look at how it might be broken.
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I have been following JoVE is the Journal of Visualized Experiments, for some time. This very unique “video journal” focuses on publishing videos of experimental procedures in life sciences.

Today I learned JoVE may soon be indexed on Pubmed, which will give it a credibility of peer reviewed scientific journal. Apparently they have also signed agreement with established science publishing companies (Annual Reviews, Springer Protocols, Current Protocols) for joint protocol publication, as in this example.. I think this is extremely useful for scientists or those who want to see actual experiments done. It will be interesting to see how it develops and accepted in scientific community.


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