Science University of Tokyo, Japan, Chao Valley, who recently passed Code of animal experiments found that eating bananas or relieve symptoms of hay fever.
Valley Zhao et al reported that the Code, they suffer from pollen allergies, mice were divided into two groups, which fed the first group of about 10 grams of banana per day, and the second group were fed normal diets. 3 weeks, the researchers found that the body can cause the first set of mice allergic to the material quality of less than half of the other group.
In addition, eating bananas, the risk of pollen allergy eosinophils in the mice also recovered to normal levels. Eosinophil is a white, under normal circumstances, the body in patients with pollen allergy would be more than the normal number of these cells.
Code of the valley, said Zhao, 10 grams of mice eating bananas every day, the intake of food per day is roughly equivalent to 3 to 4 bananas. They are prepared to continue this research.
Sunday, December 26, 2010
Beautiful first measured substance sixth state viscosity
According to the American physicist organizational network recently reported that the use of laser control the number of American scientists over frozen atoms, and by measuring the Fermi gas (generally considered to be the sixth state of matter) of the viscosity. The results show that the Fermi gas can be used as a "scale model" to measure ultra-high-temperature superconductors, neutron stars, the nuclear material, or even a few microseconds after the Big Bang quark - gluon plasma and other material properties, is expected to be used string theory to the test in the laboratory. Study published in the December 10 issue of "Science" magazine.
John Thomas, a physicist at Duke University team measured the lithium -6 ultracold atomic Fermi gas with viscosity. They will capture the lithium atoms in a few millimeters -6 size basin made by the laser, when the cooling and magnetic field exposure in the right size, these atoms will have a strong interaction. Thomas said that the very strong interaction between the Fermi gas show "amazing attributes", such as almost no friction to flow like a liquid and so on.
In the ultra-cold environment, the nature of the Fermi gas by a scale - the average distance between atoms to decide. Under the laws of quantum physics, this distance will determine all other natural scale, such as energy, temperature and viscosity scale, etc., which makes this ultra-cold Fermi gas can be measured other substances "scale model . " Thomas has proven before, the gas temperature can be measured the properties of the scale, but this is the first time scientists have tested with its viscosity.
Thomas first minus 459 degrees Fahrenheit (about minus 273 degrees Celsius) measured the viscosity of the gas. Turn off the gas collector limit, and then re-enable their capture radius of this Fermi gas began to swing. Swing the longer the duration, the lower viscosity. The temperature a little, Thomas began to observe when it is released from the catcher came out, cigar-shaped Fermi gas into a pancake from how fast. The results show that shape changes more slowly, the higher the viscosity.
John Thomas, a physicist at Duke University team measured the lithium -6 ultracold atomic Fermi gas with viscosity. They will capture the lithium atoms in a few millimeters -6 size basin made by the laser, when the cooling and magnetic field exposure in the right size, these atoms will have a strong interaction. Thomas said that the very strong interaction between the Fermi gas show "amazing attributes", such as almost no friction to flow like a liquid and so on.
In the ultra-cold environment, the nature of the Fermi gas by a scale - the average distance between atoms to decide. Under the laws of quantum physics, this distance will determine all other natural scale, such as energy, temperature and viscosity scale, etc., which makes this ultra-cold Fermi gas can be measured other substances "scale model . " Thomas has proven before, the gas temperature can be measured the properties of the scale, but this is the first time scientists have tested with its viscosity.
Thomas first minus 459 degrees Fahrenheit (about minus 273 degrees Celsius) measured the viscosity of the gas. Turn off the gas collector limit, and then re-enable their capture radius of this Fermi gas began to swing. Swing the longer the duration, the lower viscosity. The temperature a little, Thomas began to observe when it is released from the catcher came out, cigar-shaped Fermi gas into a pancake from how fast. The results show that shape changes more slowly, the higher the viscosity.
American scientists first measured out the core magnetic of field intensity
University of California, Berkeley, geophysicists measure the ground first 1,800 miles (about 2900 kilometers) deep in the core areas of the magnetic field strength, to prove the Earth's core heat source provides an important parameter, is the core cause of the internal heat source to maintain current the magnetic field. Related papers published in the December 16 issue of "Nature" magazine.
Thesis, University of California, Berkeley professor of Earth and Planetary Sciences, said Bruce Buffett, this is the first observation and not based on inferences from real data, the results do not dispute the core internal magnetic field strength to quell the dispute. Here they are calculated based on observation of 25 gauss magnetic field strength core is 50 times the Earth's surface. Geophysicists predict that the data is only moderate levels.
Strong magnetic field within the core means a strong heat source, the scientists assume that the energy source before the 40 billion years ago, state of the earth left behind by the melting of the heat, heavy element deposition and longer life expectancy occurring radioactive decay of elements. About 60% of Earth's internal energy may come from expansion of solid core cooling when the discharge of lighter elements, if only a very weak magnetic field of 5 Gauss, indicating that the supply from the radioactive decay very little heat, if the magnetic field of 100 gauss , then the strong radioactive decay.
Earth's core, including liquid outer core and solid core. Earth's liquid outer core contains 2 / 3 of the iron and nickel, about 1,400 miles (2,300 km) thick, formed Earth's magnetic field; core is the radius of 800 miles (1,300 kilometers) of solidified iron-nickel ball, about the size of the moon . Earth's core is hot thick hard layer of the mantle and crust surrounded.
Thesis, University of California, Berkeley professor of Earth and Planetary Sciences, said Bruce Buffett, this is the first observation and not based on inferences from real data, the results do not dispute the core internal magnetic field strength to quell the dispute. Here they are calculated based on observation of 25 gauss magnetic field strength core is 50 times the Earth's surface. Geophysicists predict that the data is only moderate levels.
Strong magnetic field within the core means a strong heat source, the scientists assume that the energy source before the 40 billion years ago, state of the earth left behind by the melting of the heat, heavy element deposition and longer life expectancy occurring radioactive decay of elements. About 60% of Earth's internal energy may come from expansion of solid core cooling when the discharge of lighter elements, if only a very weak magnetic field of 5 Gauss, indicating that the supply from the radioactive decay very little heat, if the magnetic field of 100 gauss , then the strong radioactive decay.
Earth's core, including liquid outer core and solid core. Earth's liquid outer core contains 2 / 3 of the iron and nickel, about 1,400 miles (2,300 km) thick, formed Earth's magnetic field; core is the radius of 800 miles (1,300 kilometers) of solidified iron-nickel ball, about the size of the moon . Earth's core is hot thick hard layer of the mantle and crust surrounded.
Russian manned spacecraft successfully docking with the international space station
Russian ground-based flight control center 17 pm news that Russian and U.S. astronauts carrying three Russian "coalition TMA-20" spacecraft was the day Moscow time 23:12 (Beijing time at 4:12 on the 18th) and the International Space Station successful docking.
Russian 24-hour news station broadcast the spacecraft docking with the space station, docking is done automatically in the form. The three astronauts on the spacecraft are Russian Dmitry hole la quarter Akayev, from Italy, European Space Agency astronaut Catherine Coleman Paul and Americans. Kong De quarter Aliyev for the spacecraft commander, Neisiboli and Coleman with the flight engineer for the spacecraft.
After docking, "Union" docking module astronauts need to pressure seal and a series of checks. As planned, the astronauts will open in the early morning of 18 and entered the space station airlock door, and is currently working there cards out in the Russian cosmonaut Alexander, Chica and U.S. astronaut Scott * Kelly join.
"Union TMA-20" spacecraft was launched on the 15th. Russian ground control center said the flight, three astronauts during a two-day flight to feel good contact with the ground stability.
Under the plan, their working hours on the International Space Station was 152 days. They will bid farewell in mid-March 2011 are currently three astronauts on the space station, and ushered in early April under the new batch of astronauts. They will also host two Russian "Progress" was cargo spacecraft, a European ATV cargo ship, a Japanese cargo ship HTV-2 and the last two U.S. space shuttle mission. Aliyev also plans to Della quarter hole and Scriven two spacewalks to complete Wavelet card.
Russian 24-hour news station broadcast the spacecraft docking with the space station, docking is done automatically in the form. The three astronauts on the spacecraft are Russian Dmitry hole la quarter Akayev, from Italy, European Space Agency astronaut Catherine Coleman Paul and Americans. Kong De quarter Aliyev for the spacecraft commander, Neisiboli and Coleman with the flight engineer for the spacecraft.
After docking, "Union" docking module astronauts need to pressure seal and a series of checks. As planned, the astronauts will open in the early morning of 18 and entered the space station airlock door, and is currently working there cards out in the Russian cosmonaut Alexander, Chica and U.S. astronaut Scott * Kelly join.
"Union TMA-20" spacecraft was launched on the 15th. Russian ground control center said the flight, three astronauts during a two-day flight to feel good contact with the ground stability.
Under the plan, their working hours on the International Space Station was 152 days. They will bid farewell in mid-March 2011 are currently three astronauts on the space station, and ushered in early April under the new batch of astronauts. They will also host two Russian "Progress" was cargo spacecraft, a European ATV cargo ship, a Japanese cargo ship HTV-2 and the last two U.S. space shuttle mission. Aliyev also plans to Della quarter hole and Scriven two spacewalks to complete Wavelet card.
U.S. troops use of high-tech simulator help save soldiers life
U.S. military use of simulation technology to train pilots, along with the action team and the role of soldiers is similar to a civil emergency personnel of the Military. The new battery-powered remote control model to simulate human blood and breathing, and eye blinking can be like the real thing. Military can these lifelike manikin test their learning skills. Equipped with a variety of new simulation device, now widely used in the U.S. Army 23 simulation training center, to the medical staff and non-medical personnel to teach life saving skills.
According to the U.S. Army, "Medical Simulation Project" responsible person (Wilson Ariza) Colonel introduction, the implementation of a Pentagon study shows that this training program has saved about 1,000 front-line soldier's life. Simulation Training Center had to be rushed to the training of Iraq, Kuwait and Afghanistan battlefield medical personnel and "first aid person" (First Responder). Later, soldiers at the front on how to save the life of ease, making this an essential skills training to become a part of everyday soldiers.
New human body model with automatic error correction capability, and lifelike skin, the soldiers stopped the bleeding in the top of the basic life-saving intravenous fluids and skills practice. The computer will capture every move down the medical staff to ensure their correct operation. Ariza said: "This device will simulate breathing and bleeding, if its body is bleeding, you must take appropriate measures to control bleeding or blood flow, or, human body model will die."
According to the U.S. Army, "Medical Simulation Project" responsible person (Wilson Ariza) Colonel introduction, the implementation of a Pentagon study shows that this training program has saved about 1,000 front-line soldier's life. Simulation Training Center had to be rushed to the training of Iraq, Kuwait and Afghanistan battlefield medical personnel and "first aid person" (First Responder). Later, soldiers at the front on how to save the life of ease, making this an essential skills training to become a part of everyday soldiers.
New human body model with automatic error correction capability, and lifelike skin, the soldiers stopped the bleeding in the top of the basic life-saving intravenous fluids and skills practice. The computer will capture every move down the medical staff to ensure their correct operation. Ariza said: "This device will simulate breathing and bleeding, if its body is bleeding, you must take appropriate measures to control bleeding or blood flow, or, human body model will die."
The American electronics warriors will be appeared on the battlefield
According to foreign media reports, the U.S. Department of Defense hopes that future U.S. forces will be faster, stronger, more fighting. Thus, Americans have been committed to the future of technologies such as e-people. In the so-called cyborg troops, who have electronic eyes more alert and flexible, extremely sensitive skin and can be bent, the machine can grip prosthesis. In robotics, nanotechnology and neuroscience, and other related technologies with the help of electronic troops will increasingly appear in the top of the real battlefield. Here are some of the most common cyborg technology:
1. Neural control prostheses
In less than 10 years, the U.S. Defense Advanced Research Projects Agency "revolutionary prosthesis," plan has been modified variety of the world's most advanced artificial limbs, such as DEKA company developed a mechanical arm. These prostheses can be lines of action of the fingers and toes react. Next, these advanced prosthetics and the wearer will be integrated with the nervous system, which can fully respond to a variety of neural signals. Johns Hopkins University scientists will be on their model year prosthetic human trials. Microarray will be implanted in the brain, the user can conduct a variety of artificial limbs by thought control operations, such as independent finger movements and weight manipulation.
2. Mind control
Sponsored by the U.S. Department of Defense human intelligence fusion research project has already begun for many years, this is a long-term goal of the U.S. Department of Defense. Sensor using the computer as a media center, the future long-distance communication between units do not need to speak. Last year, the U.S. Defense Advanced Research Projects Agency has launched a "silent call" program. The program will first use the scanner to read EEG brain signals, and then decode these signals in order to establish a brain wave dictionary. Do this, the U.S. Defense Advanced Research Projects Agency hopes that this prototype device can really read, translate brain waves, and then translated the "discourse" sent to the interlocutors of the brain, to achieve telepathy-like "silent Call. " This telepathic mind control can also be used.
1. Neural control prostheses
In less than 10 years, the U.S. Defense Advanced Research Projects Agency "revolutionary prosthesis," plan has been modified variety of the world's most advanced artificial limbs, such as DEKA company developed a mechanical arm. These prostheses can be lines of action of the fingers and toes react. Next, these advanced prosthetics and the wearer will be integrated with the nervous system, which can fully respond to a variety of neural signals. Johns Hopkins University scientists will be on their model year prosthetic human trials. Microarray will be implanted in the brain, the user can conduct a variety of artificial limbs by thought control operations, such as independent finger movements and weight manipulation.
2. Mind control
Sponsored by the U.S. Department of Defense human intelligence fusion research project has already begun for many years, this is a long-term goal of the U.S. Department of Defense. Sensor using the computer as a media center, the future long-distance communication between units do not need to speak. Last year, the U.S. Defense Advanced Research Projects Agency has launched a "silent call" program. The program will first use the scanner to read EEG brain signals, and then decode these signals in order to establish a brain wave dictionary. Do this, the U.S. Defense Advanced Research Projects Agency hopes that this prototype device can really read, translate brain waves, and then translated the "discourse" sent to the interlocutors of the brain, to achieve telepathy-like "silent Call. " This telepathic mind control can also be used.
Scientists developed most hard organic synthetic materials as so far
Yi Hu Jia Jite (EhudGazit), Yitai flexible cable (ItayRousso) as well as a group, they come from Tel Aviv University (TelAvivUniversity), Weitzman Sciences (WeizmannInstituteofScience) and the Israeli Negev (Negev) in the Jia Ruian University (Ben-GurionUniversity), introduce them to organic nano-ball hard like metal. Scientists in Germany, "Applied Chemistry" (AngewandteChemie) magazine reported that they are some interesting elements, can be made of ultra-hardness of the biological synthesis of materials.
Nano-scale biological structures often have unique mechanical properties; for example, spider silk the same weight 25 times the strength of steel. So far the hardest known material is poly aromatic organic synthesis amide (aramids), for example, Kevlar fibers (Kevlar). The secret is its aromatic ring (aromaticring) system, a special kind of spatial layout, and the plane amide bond (amidebond) the interaction between the networks. The new nanoparticles are based on a principle similar to the composition. However, unlike the large polymer chains (polymericchains), they were formed in a self-organizing process, resulting in a very simple molecule, is based on the aromatic dipeptide (aromaticdipeptides) phenylalanine (aminoacidphenylalanine).
Using atomic force microscope, the scientists examined the mechanical properties of nanoparticles. The device uses a nano-tip (cantilever), which is a tiny flexible lever arm, the end of a very sharp tip. When the needle stabbing of a sample, the hanging rod deflection angle can show that the tip can pierce the sample objects, can penetrate the number.
Nano-scale biological structures often have unique mechanical properties; for example, spider silk the same weight 25 times the strength of steel. So far the hardest known material is poly aromatic organic synthesis amide (aramids), for example, Kevlar fibers (Kevlar). The secret is its aromatic ring (aromaticring) system, a special kind of spatial layout, and the plane amide bond (amidebond) the interaction between the networks. The new nanoparticles are based on a principle similar to the composition. However, unlike the large polymer chains (polymericchains), they were formed in a self-organizing process, resulting in a very simple molecule, is based on the aromatic dipeptide (aromaticdipeptides) phenylalanine (aminoacidphenylalanine).
Using atomic force microscope, the scientists examined the mechanical properties of nanoparticles. The device uses a nano-tip (cantilever), which is a tiny flexible lever arm, the end of a very sharp tip. When the needle stabbing of a sample, the hanging rod deflection angle can show that the tip can pierce the sample objects, can penetrate the number.
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