One of the recipients of the highest honor in the world of science has become this year's British biologist John Gerdon. In addition to his other achievements Gerdona can be called "grandfather" of the famous Dolly the sheep. Scientists believe that human cloning will begin in the near future.The birth in 1996, the first animal genetic copy - the famous Dolly the sheep, has revolutionized the world of science. Its "fathers" were Scottish scientists who are able to implant the nucleus of a somatic cell into an egg.And John Gerdona (John Gurdon), Nobel Prize winner 2012 Read more [...]
The authors note that the indicators of intellectual abilities vary from a minimum of three components - a short-term memory, the ability to reason logically, as well as the verbal component.Popular and widely used standard IQ tests do not correctly reflect the level of intellectual abilities, as they depend on a number of different sub-systems of the brain - the conclusion made by the British and Canadian scientists on the basis of large-scale experiment with over 100,000 volunteers.
History tests for "intelligence quotient" - IQ (intelligence quotient) - began in 1904, when the British Read more [...]
A team of scientists from various universities and research organizations in Great Britain went on an expedition to the coast of Antarctica on a research vessel "James Cook". The expedition - the study of hydrothermal vents, calderas and cold springs, located at a depth of more than three kilometers below the surface.
Mostly slum community of scientists interested in the seabed south of the South Sandwich Islands, where the complex tectonic system, according to the portal "Science Daily." With the help of Isis experts hope to understand how these creatures survive near the Read more [...]
British scientists have debated where to begin a real apocalypse. Destruction of mankind begins with Fox that will distributors cancer. Fox will bite dogs, those - people, all get sick and die.Scientists do not tend to believe that on December 21 will come doomsday,
indicating either that the Maya just ended on that date, calendar, or the fact that the drafters had in mind something quite different. At the same time, they admit that life on Earth may die. Among the likely killer of all life - a comet, supervolcano and dogs, writes Daily Mail.
According to the script, which offers an astrophysicist Read more [...]
American scientists have discovered that the human hand has evolved not only as how to create and use various items. This process was also influenced by a fight with fists.
Evolutionary scientists from the University of Utah believe that natural selection was moving in the direction of the hands of the appearance, which can be used as a weapon, and that aggressiveness played a major role in human development than previously thought.
The structure of the human hand makes it easy to compress it into a fist, which does not occur in primates, such as chimpanzees.
The scientists tested their theory Read more [...]
U.S. neuroscientists have discovered high activity of glutamate in the brain of people who attempt suicide. Glutamate - an amino acid that is responsible for the transmission of signals between nerve cells. Scientists have long assumed that glutamate may be associated with depression and is one of the chemical reasons causing it, reports Science Daily. New research has not only confirmed these conjectures, but also made additional discoveries.
Specialists from the University of Michigan, in collaboration with an international team of co-researchers studied the effects of glutamate in 100 patients Read more [...]
In an Australian species kubomeduze Chironex fleckeri
enough poison to kill 60 people in just 3 minutes. Therefore, it burns two meter tentacles in most cases leads to rapid death unlucky swimmer or surfer.
"According to statistics, over the past 30 years because of the poison of this being affected the most people," - says the study's author Angel Yanagihara (Angel Yanagihara), biochemist, University of Hawaii (University of Hawaii at Manoa).
Deadly kubomeduza found in the waters of the ocean all the way from Australia to Vietnam. Length of ribbon-like tentacles of jellyfish reaches Read more [...]
19/12/2012 British geneticist at the University of Hertfordshire figured out how to use genetic engineering to make Christmas tree needles emit their own light. To do this, they're going to transplant ate two genes taken from jellyfish and fireflies. One of them is responsible for the production of green fluorescent protein, and the second produces an enzyme luciferase.
Young shoots will infect a harmless bacterium that is necessary genes and incorporates them into the DNA of the tree. Then with the help of a chemical lyutseferina included in the fertilizer will be activated enzyme, which, Read more [...]
19/12/2012 Researchers have shown that in the cell there is a lot less "strange" RNA molecules than previously thought. In previous experiments, the scientists found a variety of RNA that are not involved in protein synthesis and cellular regulation. The new work shows that these RNAs were artifacts of the experiment. RNA molecules are thought to perform in the cage has two main functions: they are involved in the synthesis of proteins, and are involved in cellular regulation (in addition, they are part of some enzyme complexes with proteins). All of the RNA synthesized in the cell Read more [...]
Phone Barnaul planetarium on the eve of December 21 is literally bursting with calls: all interested in what will happen to mankind on Friday. Unprecedented hype caused by the last day of the calendar of the ancient Maya, inevitably raises questions even the most reasonable person. To dispel all fears, experts planetarium called scientists, teachers of local schools in order to clarify the message of the ancient people.
A bit of theory
The ancient Maya had two calendars -Tzolkin and Haab.
Week they did not consist of 7 days, as we have, and from 13. Month was 20 days, and a year in the Tzolkin Read more [...]
In the system of Tau Ceti candidates found five planets. The intrigue is that it is nearest to us the light of the temperature and luminosity, very close to the sun. And if there really is a planet, then one of them could be the right distance from the star, and then on the surface can be mild temperatures, liquid water and even life.
Image Mikko Tuomi / University of Hertfordshire.
Up to Tau Ceti 12 light-years, it is only three times more of our nearest stellar neighbor Alpha Centauri. Tau Ceti like sun so much that the astronomer Frank Drake, a well-known enthusiast SETI in 1960 defined Read more [...]
Scientists from the University of Pennsylvania found that American goldenrod Solidago altissima is able to capture pheromones male flies Eurosta solidaginis and uses his ability to control this pest. The work of researchers published in the journal Proceedings of the National Academy of Sciences, a summary of the results of its university website.Mushka Eurosta solidaginis (pestrokrylok of the family Tephritidae) lays eggs in the stalk of the plant, puncturing its ovipositor, which leads to the appearance of the characteristic nodules - gall. Their education does not lead to death of the plant, Read more [...]
As from non-living chemicals have living organisms - the old question facing scientists. But here in a study published in the journal Physical Biology, researchers from the Santa Fe offer quite plausible and tselostnostnoe explanation.
"We are trying to use the full knowledge base of the various disciplines," - says Professor Eric Smith.
Creating life from scratch requires two basic "skills" - carbon capture and do for your own body what is possible. The first point - the union of carbon atoms to create living matter. Carbon dioxide, which is present in such abundance on Read more [...]
Was wrong to say that during the life of the brain continually loses cells that are not restored. According to scientists, the brain cells do wear out, but in the process of neurogenesis is growing. Several thousand new nerve cells are born every day in the hippocampus, "home" short term memory. Healthy living, lack of emotional stress and trauma help restore brain cells.
The second of the debunked myths - that the brain can not change. But neuroscientists say that the brain is incredibly flexible, if you learn how to develop and promote it. This phenomenon is called neuroplasticity, Read more [...]
In our bodies live trillions of microorganisms that have a permanent impact on us. Scientists at the company decided to collect uBiome map of the human microbiome to understand the processes occurring in our body.
Biotech start-up company uBiome use online crowdsourcing to attract public and compassion to map the human microbiome, the complex ecosystem of bacteria living together with us. "Think of yourself as a place where live bacteria" - says co-founder uBiome Jessica Richman. "Defining and analyzing them, we can see what's happening in our body."
uBiome collect microbial Read more [...]
In the event of an attack of insects plants emit volatiles that indicate the danger, but to understand this signal can only close relatives.If the plant is attacked by insects, which, say, chewing on the leaves, the victim included safeguards. They are diverse: some emit volatiles that attract predators that would eat herbivorous insects, others make themselves less palatable or even toxic.
Researchers from the University of California at Davis (USA) found that plants not only defended themselves, but others warn of the danger, and their alarm only understand the immediate family. Scientists Read more [...]
The strange flight of Pioneer 10 and 11 Space research stations Pioneer 10 and 11 (launched in 1972 and 1973.) Long ago completed their flight through the solar system, but scientists still are paying special attention to them. Although Pioneer 11 was completely lost, both research stations unexpectedly (and inexplicably) changed the direction of his flight. But mysteries do not stop there: it seems that the two ships headed to the same direction.Puzzled scientists led a great many assumptions about this: computer errors, the solar wind, a fuel leak. However it remained only at the level of speculation, Read more [...]
Sleep a person needs more than food. We can hold out for almost a month without food, but without a dream will die in a few days. The same fate awaits any other living creatures. So, at the end of XIX century, Russian researchers have experience: sleep deprivation puppies. After three or four days, the animals begin to overcome internal infection - a rebellion raised microbes that live in us and is usually harmless.
Since then, scientists became clear during sleep are very important processes. As explained by a sleep - the sleep specialists, while the signals from the outside world off, the Read more [...]
Physics to explain the existence of the world from the standpoint of quantum mechanics. Not find evidence of survivors of clinical death and allegedly flew to the "other world." They saw themselves on the side swept through some tunnel communicated with strange beings ... near death experience (near-death experience: NDE - in English acronym) - the name of this phenomenon. But what did he show? This issue has recently once again excited progressive society after she met with a sensational statement by Professor Stuart Hameroff (Dr Stuart Hameroff) of the Department of Anesthesiology Read more [...]
If mathematically present black hole in the six dimensions of a black brane, it behaves like an ordinary material. Thus, the description is simplified.With the introduction of extra dimensions black hole behaves like a liquid and a solid at the same time, and bending of the solid form could lead to an electric field.
Although these effects exist only in theory, the equations describing them could help us unravel some mysteries of the real world - for example, the properties of hot superdense matter that existed just after the Big Bang.
hmn."Height =" 375 "width =" 600 ">Illustration Read more [...]