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| Here First Tech |
| Here First is the best daily science and technology news blog. You will also find here gadgets review, health news and concept designs |
| Language: English |
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| Serial Two-Photon Tomography |
| 2012-01-18 04:26:29 |
A team of neuroscientists researchers at Cold Spring Harbor Laboratory, New York, USA, led by Professor Pavel Osten, has developed a new technique to create images of the entire brain, after having conducted experiments on the brains of mice.
The new technique takes successive images of brain sections precisely, using a laser microscope with two photons. The resulting images are then computer processed, resulting in a three-dimensional image of the entire brain.
Developed in conjunction with the TissueVision company, new brain scanning technique was called Serial Two-Photon Tomography - STP.
Study leader, Professor Pavel Osten argues that this new technology is extremely accurate and is sufficiently developed to be already used in specific procedures.
The researchers tested the process at different resolutions, from 1-2 microns to less than one micron and obtained a complete set of data regarding the studied brain from 6.5-8.5 hours and a standby time considerably reduced compared...
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| Extraction of DNA samples from the brains of deceased patients highlights the mysteries of mental illness |
| 2012-01-10 04:22:53 |
An American pathologist from Indiana University along with an international team of researchers extracted DNA samples from the brains of deceased patients belonging to the period 1896-1938 in order to observe if they contain genes related to schizophrenia or other mental illness.
It is believed that schizophrenia is caused by certain genetic variations, but researchers were unable to identify the precise mutation or series of mutations that are directly related to the disease.
Scientists took advantage of the fact that brain samples dating from the late 19th and early 20th century are kept perfectly preserved museum in a special substance (a form flammable gelatin and cellulose). The brains were not affected in any way by modern medicaments and have with clinical notes.
However, extracting DNA and RNA samples was not easy, because the brains must be treated with liquid nitrogen at -180 degrees Celsius temperature.
Although researchers have not published their findings, if DNA ex...
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| Consuming Fish - No Alzheimer's Disease |
| 2011-12-02 03:26:01 |
Folks who consume baked or baked fish every week could be ameliorating their brain wellness and cutting down their risk of getting mild cognitive impairment (MCI) and Alzheimer's disease.
The study establishes a direct connection between fish eating habbits, brain structure and Alzheimer's risk.
"The results showed that people who consumed baked or broiled fish at least one time per week had better preservation of gray matter volume on MRI in brain areas at risk for Alzheimer's disease."
Alzheimer's disease is an incurable, graduated brain disorder that slowly ruins memory and cognitive skills. National Institute on Aging reports that 5.1 million US citizens may have Alzheimer's disease. In MCI, blackout is present but it's not that aggressive. Folks with MCI usually go on to germinate Alzheimer's disease.
"Consuming baked or broiled fish promotes stronger neurons in the brain's gray matter by making them larger and healthier," Dr. Raji alleged. "This simple lifestyle choice incre...
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| Artificial blood could soon become usable |
| 2011-10-31 01:25:34 |
Researchers at the University of Edinburgh, Scotland are workin on a type of artificial blood that will be ready for human tests in two or three years. The artificial blood is created from divisible stem cells harvested from adult bone marrow. The fresh created blood will be O Negative and could be used for 98% of patients.
Basically, blood is a liquid material that carries oxygen and other nutrients through the veins and arteries. Every day people are injured or develop problems that requires surgery. This means blood loss requires transfusion of fresh blood from various donors. In some cases this could be a problem because the blood type could be hard to find, especially in underdeveloped countries. In addition, there are external risks of blood infections such as HIV, hepatitis, etc.
The team from Edinburgh, led by Professor Marc Turner, is cultivating stem cells from bone marrow in a material very similar to red blood cells. They believe that the mechanism is refined and will b...
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| How to prolong your life |
| 2011-10-19 11:29:42 |
I'm sure everyone heard about foods that are not good for your health: pork, fats, junk food, etc. But what should we eat and how should we treat our body in order to live longer?
If you want to have a healthier and longer life then you should eat natural food. Stop buying from your local drugstore pills stuffed with large complex of vitamins. Nutritionists advise you to try a cheaper and safer option. Why pay for pills when you can pay for the real deal?
"We know that fruit and vegetable diet is healthy, that prevents many diseases and reduces costs for maintaining health. Unfortunately, nobody knows exactly how each component of this regime affects the longevity of life" said Dr. Hubert Warner, who runs an aging program research. This does not mean it won't affect it. Almost every study available shows that fruit and vegetable is the simplest way to keep your body in shape.
Another study shows that chocolate and wine are the secret of a long healthy life. Sounds rather f...
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| Artificial blood vessels created with 3D Printer |
| 2011-09-20 02:17:46 |
Artificial blood vessels created in the laboratory with a 3D printer could be used in organ transplantation soon .
The major obstacle encountered so far in creating artificial tissues was supplying them with nutrients, which is done naturally through capillaries.
A team of researchers from the Fraunhofer Institute in Germany has solved this problem by using a 3D printer and a technique called two-photon polymerisation.
There are thousands of patients who desperately needed a transplant and some fail to obtain it in time. Over 11,000 people were put on the waiting list for organ transplantation in Germany only in 2011.
To save as many lives as they can, researchers around the world working in the field of tissue engineering have attempted to create in the laboratory artificial tissues and even whole organs.
"The individual techniques are already functioning and they are presently working in the test phase; the prototype for the combined system is being built," said Dr. G...
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| What is Superstring Theory? |
| 2011-09-18 03:25:46 |
Superstring theory is an effort to find an answer for all of the atoms and cardinal forces of nature in one hypothesis by molding them as oscillations of tiny supersymmetric strings. Superstring theory is a stenography for supersymmetric string theory because contrary to bosonic string theory, it's the adaptation of string theory that contains fermions and supersymmetry.
Physicist Brian Greene gives a short explanation of superstring theory, a concept that minuscule strands of energy vibrating in 11 dimensions create every particle and force in the universe....
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| Ultra low-power state CPU |
| 2011-09-18 03:14:08 |
Scientists at intel developed an experimental CPU that brings a %500 increase in energy efficiency.
read more on Crazy Gadgets...
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| Pattie Maes and Pranav Mistry demo SixthSense |
| 2011-09-04 05:34:54 |
SixthSense is the latest effort from Pattie Maes and Pranav Mistry. The setup features a camera, a projector, a little mirror, phone and colored caps. The components communicates with the cellphone that will access all the data you need. The system tracks the four fingers and recognizes various gestures (zoom in/out, take a picture, organize, resize). It's still a work in progress but its capabilities are just amazing.
Price: $350.
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| Stress in early life reduces life expectancy |
| 2011-08-17 07:51:48 |
A fresh study by the University of Glasgow, brought out today in the Proceedings of the Royal Society B: Biological Sciences, evokes that our life expectancy is probably influenced by how much tension we were exposed to early in our lives. The research also depicts that early life stress underwent by our partners may affect our lifespan.
“Other research led us to expect that increased stress exposure in early life would reduce adult lifespan’, said Professor Pat Monaghan, “but we were not expecting such a big effect on breeding partners. Unstressed birds had mortality rates that were four times higher than normal if they were simply given partners that had experienced stress earlier in their lives.”
The group of researchers considers that contribution to the reason for the partner effect could be that these tense souls are not very comforting to be with. Agreeing to Professor Monaghan, “The take home message is that the wrong kind of partner can be very bad for your healt...
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