Like Fish on Waves: Electrons Go Surfing
Published: September 22, 2011.
Released by Ruhr-University Bochum
Physicists at the RUB, working in collaboration with researchers from Grenoble and Tokyo, have succeeded in taking a decisive step towards the development of more powerful computers. They were able to define two little quantum dots (QDs), occupied with electrons, in a semiconductor and to select a single electron from one of them using a sound wave, and then to transport it to the neighbouring QD. A single electron "surfs" thus from one quantum dot to the next like a fish on a
Full Story »
More news from Ruhr-University Bochum
Biomolecule's Behavior Under Artificial Conditions More Natural Than Expected
Researchers often analyse isolated biomolecules in test tubes, and it is doubtful if the results can be applied to densely-packed cells. A team from Bochum, Dortmund and Greifswald monitored the folding of an RNA structure in the living cell and compared the results with those of test tube analyses.
Olfactory Receptors in the Blood
Human blood cells have olfactory receptors that respond to Sandalore. This could provide a starting point for new leukaemia therapies, as researchers from Bochum report in a current study. Olfactory receptors exist not only in the nose, but also in many other parts of the body, including the liver, the prostate and the intestines. Researchers headed by Prof Dr Dr Dr Hanns Hatt from the Ruhr-Universität Bochum have now demonstrated them in white blood cells in humans.
New Insights into the Supercritical State of Water
Using molecular dynamics simulations, researchers have analysed the properties of supercritical water. The researchers showed which structure of the hydrogen bond network is formed in different supercritical states and also simulated the relevant terahertz spectra. This approach may help in future to interpret experimental results.
Mental Time Travel: an Exclusively Human Capacity
Are humans the only ones who are able to remember events that they had experienced and mentally time travel not only into the past but also the future? Or do animals have the same capacity? To a certain extend, according to three researchers who are contributing a new theoretical model to this long-standing discussion. They published their results in the journal Neuroscience and Behavioral Reviews. Episodic memory is a component of mental time travel
Neurotransmitter GABA Predicts Learning
In an international collaboration with the Johns Hopkins University (Baltimore, MD, USA), neuroscientists at the Ruhr-University Bochum have determined a link between brain levels of the neurotransmitter GABA, the main source of inhibition in the brain, and tactile learning. Using magnetic resonance spectroscopy, they were able to show that success in learning can be predicted by baseline GABA levels. The results of this research were recently published in the scientific journal "Cerebral Cortex".
Researchers Discover Giant Pore in the Membrane of Peroxisomes
Researchers have discovered a second giant pore for the transport of folded proteins in certain cell organelles, i.e. peroxisomes. Five years ago, the group already described the first giant pore. The team headed by Prof Dr Ralf Erdmann from the Institute of Biochemistry and Pathobiochemistry at the Ruhr-Universität Bochum published the findings in the journal "Cell Reports" together with colleagues from Osnabrück, Bremen and Göttingen.
New Access to the Interior of Electronic Components
An interdisciplinary team at the Ruhr-Universität Bochum has found a way of accessing the interior of transistors. The researchers have manipulated the electron gas contained within by applying resonators to generate rhythmic oscillation in the terahertz range inside. They shared their findings in the journal Scientific Reports. Transistors can be manipulated not only with voltages
High Frequency Stimulation in Pain Medicine
Due to disease-related changes in their brain, pain patients often suffer from an impaired tactile ability in their hands. In a pilot study conducted by scientists at the Ruhr-University Bochum, high frequency repetitive stimulation was investigated as a therapeutic approach for these patients. The results of this study have now been published in the journal "Frontiers in Neurology". They show that passive stimulation of this kind is a promising new therapy option.