Monthly Archives: October 2011
They manage to reverse the aging human adult stem cells
In an achievement that may end up opening a new door of medicine, a research team has managed to reverse the aging process of human adult stem cells, which are responsible for helping to regenerate old or damaged tissue.
Applying this process and controlled manner will be used to treat a variety of ailments that arise as people age, caused by the accumulation of tissue damage. The regenerative power of tissues and organs decreases with age. The current hypothesis on the aging of stem cells suggests that living organisms are as old as adult stem cells are to be responsible for each type of tissue regeneration.
Therefore, a thorough understanding of biochemical processes that allow human adult stem cells to initiate self-healing and divide, proliferate and differentiate to rejuvenate damaged tissue could be the key to dramatically boost the regenerative medicine, and provide it with a box of tools with which to repair the damage caused by many diseases associated with aging.
Explain why many stars are no longer grouped in pairs
Not all stars are solitary. In our galaxy, the Milky Way, about half of all stars have a companion and travels through space in a binary system. However, to date has been not possible entirely satisfactory way to explain why some stars are double or even triple systems, while others are solitary.
Recently, a team of astronomers from the University of Bonn, Germany, and Max Planck Institute for Radio Astronomy (also in Bonn) believe they have found the most convincing explanation for this enigma. In general, the stars do not form in isolation but in groups within clouds of gas and dust (nebulae).
A proton-based transistor to allow machines to communicate with living things
Electrical devices created by human being, from lamps to iPods, are regulated by electrons. On the other hand, the human body and of any living thing, uses protons or ions to plenty of work and of transmissions of signals. Now it has managed to build a transistor that uses protons.
The creation of such a unique device provides the basis for the development of machines that can communicate directly to living organisms. The devices today are connected to certain systems and processes of the human body is used only to biological detection or prostheses and the like, and usually communicate by electrons, which are negatively charged particles, not by protons, which are positively charged hydrogen atoms, nor by ions, which are atoms with positive or negative charge.
Designed a new type of remote control for TV
Researchers at the faculty of information of the Polytechnic University of Madrid (FIUPM) have designed a new type of remote for the TV that is capable of measuring the pressure of the fingers and the angle of rotation of the wrist, and transmit that information to the TV to change channels or adjust the volume.
Externally, the knob has a rubber ball used for exercising the fingers of the hand, which allows it to be completely submerged in liquids and resistant to falls. The invention is an outcome of the doctoral dissertation of Gonzalo Dancer, directed by Professor Gracian Trivino, Photonics Technology Department, Faculty of Computer Science, and has been patented under the number P200501609 in the Spanish Patent Office.
The system suggesting different mechanisms for the recognition of repetitive patterns in gestures and body postures based on soft computing techniques. The Soft Computing is a set of computer techniques capable of modeling and analyzing complex systems, present in such diverse branches of biology, business organization, medicine or the humanities. Among the techniques that make up the discipline, are neural networks, Bayesian networks, bio-inspired computing, or even chaos theory.
Exploit the biological secrets of the woolly mammoth in human blood to withstand the cold
The blood of the woolly mammoths, extinct creatures like elephants and roamed the Earth in prehistoric times, is helping a team of scientists to develop new medical interventions blood products to modern, including a temporary reduction in body temperature of patients in cases where it may be helpful to the success of surgery.
The investigation has taken place team of Chien Ho (Carnegie Mellon University in Pittsburgh, Pennsylvania) and colleagues at the University of York in the UK, the Australian Centre for Ancient DNA, and the University of Manitoba in Canada. The ancestors of woolly mammoths emerged and evolved in hot climates, where they currently live African and Asian elephants, but migrated to the cold regions of Eurasia between 1.2 and 2 million years in the Pleistocene Ice Age.
Liquid silicone injections can cause death
The liquid silicone injections as method of beautification in plastic surgery can cause the death. This is recognized by researchers who have submitted estadounidenese these findings in the journal Chest, after the announcement at the last annual meeting of the American College of Chest Physicians (ACCP) held in Hawaii.
The studies carried out by experts from universities in New Orleans, Michigan and California (USA), have reported several cases close to death after the use of liquid silicone injections in operations of plastic surgery.
3D Television without having to wear special glasses
A team of researchers are optimizing technologies that allow TV viewing in 3D without having to use accessories such as special glasses. A new system of four cameras can even withstand live broadcasts.
“The revolution of 3D television will only occur when no longer needed glasses. Using them is too uncomfortable and annoying”, says Frederik Zilly, Heinrich Hertz Institute in Berlin. He and his colleagues in this and other 12 states are working on the MUSCADE project on technologies that will be seen without special glasses of 3D television.
Artificial intelligence against Alzheimer’s
Artificial intelligence is much more than robots with reasoning ability. Diseases such as Alzheimer’s and glaucoma they use certain techniques of this discipline for a diagnosis.
The SIMDA of the UNED group researchers have developed specific applications in this field and also in the video surveillance. The documentary “Bicycle, Spoon, Apple” – that recounts how Alzheimer’s affects to Pasqual Maragall – uses the technique production test known as attributes.
Innovative parabolic mirrors to convert sunlight into laser beams
It is said that Greek inventor and engineer Archimedes used parabolic mirrors to concentrate sunlight and create “heat rays” with those who managed to burn the ships that attacked the city of Syracuse.
Although this story is highly speculative, and probably is only a legend, a current team of researchers from the Scientific and Production Association in Uzbekistan has proposed a method with better performance guarantees for parabolic mirrors used in laser systems fed with sunlight.
Genetic alteration in children with autism and gastrointestinal problems
It has been proven in research that children with autism and gastrointestinal disorders have alterations in the expression of genes involved in digestion. These alterations may contribute to changes in the types of bacteria commonly found in their intestines.
Autism, which is defined by deficiencies in verbal and nonverbal communication, difficulties in social interaction and behavior traits characteristic and repetitive, affects approximately 1 percent of the population. Many children with autism have gastrointestinal problems that can complicate the clinical management of their disorder and contribute to behavioral disturbances.