Two new groups of human blood found scientists from the American University in Vermont. On the surface of blood cells have identified two proteins that are responsible for the emergence of completely new blood groups.
Experts note that they hit his discovery, since previously it was thought that these groups of people, there are only four basic. In this case, however, there are 28 additional recognized by the International Society of Blood Transfusion. Now the list will be revised medical staff. New blood were named lendzheris (Langereis) and Junior (Junior), and transport proteins that led Read more [...]
Geophysicists have made a sensational statement. They believe that the core of the earth changes its form. According to them, in the Eastern Hemisphere, the Earth's core is gradually melting, and the Western Hemisphere, it hardens.
Previously, scientists followed the theory that the earth's core is stable and has a crystalline structure, but this myth dispelled French geophysicists, they argue that the processes in the core of the earth continues, and it has not septenary form.
Data on seismic activity going over thirty years, and they have evidence that during this period there were Read more [...]
An international team of astronomers has found that a large meteorite fragments that fell in the state of California, was formed
in the early days of the solar system andbelongs to a previously unknown type "Celestial Stones", according to an article published in the journal Science.The meteorite, which later received the code name Sutter Mill, entered the lower atmosphere of the Earth April 22, 2012, moving at record speed of 29 kilometers per second. He flew over the territory of Nevada and California, spraying hot fragments over the town of Coloma and Lotus. Then, flying several Read more [...]
A group of Russian, Spanish and British scientists has achieved unprecedented preservation of superconductivity in strong magnetic fields.Researchers from Russia (Institute of Semiconductor Physics. Rzhanov AV), Spain (Madrid Autonomous University), UK (University of Bristol), Belgium (Interuniversity Microelectronics Center) and the U.S. (Argonne National Laboratory, scientists of the last two countries are of Russian origin) stated achievements, combining fundamentally change the pattern applied use of superconductors.Superconductors behind MRI, levitating trains and many others, could make Read more [...]
22/12/2012 Geologists have determined the position of the Earth's equator in the Ordovician period, about 500 million years ago, studying the fossils in their natural occurrence. They followed what animals left their mark for 6000 km.
Analysis of the fossils showed that between 488 million and 443 million years ago, the line is not passed through Africa and South America, as it is today, and in North Greenland, the Canadian province of Manitoba and the states of Utah and Nevada. Paleontologists Zhisu Jin and Phil McCausland from the Department of Earth Sciences of the University of Western Read more [...]
Physics, Massachusetts Institute of Technology have shown experimentally the possibility of the existence of matter in a state of a quantum spin liquid. The work of scientists published in the journal Nature.The magnetic state of the material is determined by the orientation of the magnetic moments of its electrons. If the orientation of molecules in different in substance the same as locally, it has a magnetic moment. Such substances are called ferromagnetic. If the individual magnetic moments are oriented in opposite directions, their effects cancel each other. Such substances are called Read more [...]
Geologists say that the plates of the seabed near the Great Barrier Reef are destroyed and warn that the possible imminent collapse, which can cause a large tsunami.Geologists have found fracture plates seabed near the Great Barrier Reef Marine geologists from the Australian James Cook University conducted studies using advanced imaging techniques 3D relief deepwater reefs from 2007 to the present day and found dozens of submarine canyons.
During a recent research expedition, they found One cubic kilometer Plate seabed - remnants of the old underwater landslide - which lies on the continental Read more [...]
During embryonic development of its agencies must conform to the size of the body and the size of each other. It is clear that one vertebra should overtake its neighbors and become the size of the entire spine. That is, in the growing embryo is a constant scaling of the body, from the smallest to the largest. As it happens, the scientists were able to see from the European Molecular Biology Laboratory (Germany).David Spears). "Height =" 389 "width =" 600 ">Rat embryos at the age of about 16 days (photo David Spears).The researchers took the germ cells of mice at Read more [...]
The meteorite, which fell in the place where the California gold rush, gold was for the scientists, being a guest of the early solar system.The morning of 22 April and the sky Nevada and Northern California rolled a ball of fire, accompanied by strong winds and associated sound effects. Meteoradar showed that the object collapsed west of the Sierra Nevada. There immediately rushed hunters meteorites.The first fragment were found in a park in California town of Coloma. (Ironically, it was there in the middle of the XIX century gold rush began.) Soon Peter Dzhenniskens of the SETI Institute Read more [...]
Russian scientists have found that the original Mayan calendar ended with a 21 and 23 December 2012. Just later that date was moved to the winter solstice for the convenience of astronomical calculations. The researchers also refuted the popular theory that the end of the Mayan calendar means the death of all life on Earth. "Moreover, do nothing at all about the Mayan end of the world did not say," - says Galina Yershova, Professor, Russian State University for the Humanities and the President of the Russian-Guatemalan Maya Center for Research Yuri Knorozov.Note that it is Yu.Knorozov, Read more [...]
Genome of plants and animals - is not new. However, there is a caveat - this process will take a lot of the body's cells - thousands and millions - after deciphering which scientists are generalized, and therefore, inaccurate views of the genome. Judge the changes in the DNA of individual cells can result. Harvard scientists have found a new way to decode the genome of the individual cells, according to an article on the website Nature.
To do this, first get multiple copies of DNA. Existing methods, including using the polymerase chain reaction, are imperfect. They lead to the fact that Read more [...]
Many types of malignant tumors tend to increase the number of times the event of chromosomes in a cell or polyploidy. It is known that, for example, at 14 and 35 percent of breast cancer and gastric cancer, respectively, have a triple or multiple set. (Recall that the normal cells of the human body have a double set of chromosomes).
The basis of this phenomenon is a violation of the normal process of cell division - mitosis.
Usually precedes mitosis phase synthesis, in which there is a doubling of the genetic material (copy of all forms of cellular components). After that, as a result of mitosis Read more [...]
In the company of ganglion cells of the retina, which can pre-digitization of visual information, the researchers added another and some bipolar cells, which are found in the same capacity for the initial encoding of visual stimuli.Retina - this is not just a mediator between the environment and the brain, not just a set of photosensitive elements, which transmits the analysis center everything feels. Retina also deals with some "creative work": it analyzes the intensity of light, its direction, determines where the edge of the picture. For information about these options, you want Read more [...]
A new way to predict earthquakes - the acoustic signals generated by cosmic ray muons - offered scientists Physics Institute. PN Lebedev Physical Institute. First experiments carried out in the Tien Shan mountain research station near the city of Almaty, showed that cosmic rays can be seen as a tool to identify anomalous seismic intensity environment of this nature.Tien Shan mountain scientific station of LPI. It is here verified new concept searching for earthquake precursors based on detection of abnormal stress in the acoustic response acted upon penetrating cosmic ray particlesThe Read more [...]
Metamaterials future will allow us to "edit" reality. Making incarnate event, wearing a cloak of events (a cloak of space-time) can be: at the heart of this idea is the ability to play with the particles of light, creating the illusion of perception. Physics Martin McCall and Paul Kinsler said about the idea at the February Physics World.Both spatial and space-time cloak a common technique known as "transformation optics." The principle is simple: the designer can decide which path will be the light before it gets into the eye of the observer, and on this basis develop appropriate Read more [...]
Become aware of the most common causes of poor quality of roads. Staff conducted a study of the Perm branch of FSUE "ROSDORNII."One reason for the low quality of roads - the latest announcement of tender procedures.
They often start with the release of the track asphalt. As a result, contracts are placed poorly, but the construction is being delayed and in torrential rain and snowfall.
2 reasons experts believe low-quality selection of contractors.
To change this situation, it is necessary to extend the qualification requirements to enter contests and pre-qualified contractors. It Read more [...]
Their portions are smaller than normal by as much as 170 grams. Men need to almost double the recommended rate of meat. To such conclusion experts at McMaster University in London. They conducted research related physical activity and maintaining muscle mass middle-aged men and found that the maintenance of the body in the best shape you want to increase the amount of meat in the diet up to 170 grams.In fact, the increased portion of meat - a new look at the product as a tool that can prolong youth. After all, with the age of the human body tend to lose muscle mass. Because researchers and Read more [...]
Scientists believe the University of Bath, a person could buy the enzymes that determine the blood group of bacteria - they were necessary to prevent the spread of viruses in the population.
Red blood cells in the blood covered the carbohydrate structure called glyco-antigens. The phenotype of these antigens determine blood group system AB0. A-positive people have antibodies that oppose glycoprotein antigens of B, B-positive have anti-A and anti-0, 0-positive - the anti-A and anti-B. These antibodies do not exist at the beginning of the formation of the body, and appear with the intestinal bacteria Read more [...]
When we look at an object, then immediately determine its properties. For example, we see an athlete - and we understand that this is a "person", "woman" and, say, "Finally, just beautiful." These categories can be a great multitude, and in addition, the objects and actions can have very different set of these categories. Scientists have long wanted to find out how the brain sees such generic properties.Until now it was thought that the brain under each category use its own zone, which is raised every time a person sees something with this feature. However, researchers Read more [...]
Tomsk scientists is important to bring these bees, that they "were not evil to endure the harsh conditions of Siberia good to forage harvested not only for the beekeeper, but also for myself."Small innovative company LLC "ApiMaster" created at the Tomsk State University (TSU), will bee breeding winter-hardy, adapted to harsh conditions of Siberia, RIA Novosti reported at the university on Thursday.The university noted that the project in the region will be able to revive beekeeping. According to scientists, the Tomsk region - a successful area for honey: honey timber is Read more [...]