Leveraging small “defects” or special anomalies in nanodiamonds, researchers have achieved sufficient magnetic moment inherent consistency of these defects, and to exploit its potential as quantum sensors for high precision and also biocompatible.
In that sense, the nanodiamonds potentially provide an extraordinarily precise resolution and biocompatibility, and which can be inserted into many living cells.
Through close observation of the dynamics of spin in the nitrogen-vacancy nanodiamond centers, equipment Mete Atature, Helena Knowles and Dhiren Kara, the Cavendish Laboratory, part of the University of Cambridge in the UK, has now got to determine which is the concentration of nitrogen impurities which decisively acting on the coherence, and non spin interactions in the crystal surface. Read the rest of this entry »
It has been verified that it is feasible to implant under the skin sensors based on carbon nanotubes to detect nitric and able to stay there for more than year rust.
Nitric oxide is one of the most important signaling substances living cells, carrying messages within the brain and coordinating functions of the immune system. In many cancer cells, their levels are abnormal.
The research and development work conducted by the team of Michael Strano and Nicole Iverson, of the Massachusetts Institute of Technology (MIT) in Cambridge, United States, offers a new way of measuring nitric oxide, and potentially other substances, in the interior of the body and in real time. Read the rest of this entry »
The brains of men and women are not structured in the same way, at least in terms of the connections between the hemispheres. U.S. scientists have analyzed the neural circuits of about a thousand men and women, from infancy to adulthood.
The study, published in the journal PNAS, notes that the patterns of brain connectivity men make a more efficient system for coordinated actions and perceptions. By contrast, in the female brain, connections favor analytical reasoning, information processing and intuition.
“It’s a unique view of gender differences across brain connectivity,” say the researchers in their paper. Our findings support the theory that the behavior has a neuronal substrate and our study could improve their understanding,” stand out. Read the rest of this entry »
Cancer patients are likely to recover if the tumors are completely eliminated. However, the edges of a malignant tumor are often mixed with the surrounding healthy tissue, and it is difficult for surgeons to recognize and remove small clusters of cancer cells.
A new and portentous camera, developed by scientists at the Fraunhofer-Institute for Manufacturing Engineering and Automation (IPA) in Germany, becomes visible to the “hidden” tumors during surgery.
Until now, practitioners have relied exclusively on their trained eye when to remove peripheral portions of sets of tumor tissue. Read the rest of this entry »
The revolutionary new Internet architecture is being designed to replace the current one includes such radicals as drastically reduce the need for the surfer-server connections and promote more efficient data distribution changes, following an approach not unlike that of P2P networks.
Are already taking the first steps toward this new architecture for internet, allowing, if expectations are met, to increase the speed and network security.
A prototype of the new architecture, which has been developed as part of a project called “Pursuit”, funded by the European Union, is now beginning to be tested. Read the rest of this entry »
Penguins have a clumsy gait and ungainly so much that people find quite comical. However, when the penguins dive in the water go to navigate it with such precision and speed, described them as underwater rockets.
This amazing ability of penguins has been admired for years by Flavio Noca, professor of aerodynamics at the University of Applied Sciences Western Switzerland (Hepia) in Geneva and the Swiss Federal Institute of Technology (EPFL) in Zurich (also known as ETH Zurich).
Finally, Noca and colleagues have been inspired by the ability of penguins move as “rocket” to create a new technology of underwater locomotion characterized by high maneuverability and high hydrodynamic efficiency. Read the rest of this entry »
Scientists at Duke University (USA) have led a study on the influence of cholesterol on the risk of breast cancer. The results, although preliminary, are published in the journal Science.
The study, conducted on mice, first explained this relationship, especially in postmenopausal women, and suggests that changes in diet or drug therapy to lower cholesterol are a simple and affordable way to reduce the risk of breast cancer.
“A lot of studies have already shown a relationship between obesity, particularly among high cholesterol, and breast cancer, but until now had not been identified any mechanism to explain it,” said Donald McDonnell, director of the Department of Pharmacology and Biology Cancer at Duke and lead author of the study. Read the rest of this entry »
Gimball is a small, lightweight robot that gives air, like flying insects, does not suffer damage or crashes to the ground simply by colliding with an obstacle. The team of Adrien Briod and Przemyslaw Mariusz Kornatowski, of the Federal Polytechnic School of Lausanne (EPFL) in Switzerland, aimed to develop a machine that can operate in extremely chaotic environments without fear that their integrity panda thread detect every obstacle and avoid it in time.
Gimball collides and bounces against obstacles without problem, and you do not need to avoid them at all costs. Their flight speed and protection system will ensure no harm in these impacts. This spherical robot 34 inches in diameter, and only 370 grams, flies in the most unpredictable and chaotic environment without the urgent need for sophisticated systems of obstacle detection.
This resistance to damage, inspired by insects, is what distinguishes it from other flying robots. Gimball is protected by a spherical elastic cage that absorbs the force of impact, thus preventing collisions release their destructive force in the sensitive structures of the robot. Gimball keeps its balance by a gyroscopic stabilization system. When it was tested in a forest in Lausanne, Switzerland, is brilliantly acted, bumping a tree trunk to another, but without damage and also maintain its course. Read the rest of this entry »
Using cheap materials configured and tuned to pick up signals in the microwave band, researchers have managed to design an energy harvesting device with a degree similar to that of modern solar panels efficiency.
The device, developed by specialists of the Pratt School of Engineering at Duke University in Durham, North Carolina, United States, wirelessly converts microwave signals into electric current, capable of recharging a mobile or cell phone or other small electronic devices.
The unique device works under similar solar panels, which convert light energy into electrical current principle. But the new device captures energy from sources such as satellite signals, WiFi signals, and even, with appropriate adaptations, sound waves. Read the rest of this entry »
The nuclear accident at the Chernobyl nuclear power plant in 1986 exposed hundreds of thousands of people to high levels of ionizing radiation. In the years immediately after the disaster, it increased about one hundred times the number of cases of papillary thyroid cancer in patients in the area who were children when they triggered the explosion of the nuclear.
Exposure of an important part of local children to ionizing radiation because of the Chernobyl nuclear disaster abruptly increased the incidence of clinically significant thyroid cancers compared with the percentage of cases occurred in the same regions of Belarus and Ukraine before the accident.
By 1995, the incidence of thyroid cancer in children had increased to 4 cases per 100,000 children per year, whereas before the nuclear disaster was between 0.03 and 0.05 cases per 100,000 children per year. The risk was higher in those individuals who were exposed to radiation at younger ages. Read the rest of this entry »