Young stars ejecting plasma could give us clues into the Sun’s past Kyoto, Japan — Down here on Earth we don’t usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are called coronal mass ejections (CMEs). They often occur together with sudden brightenings called flares, and sometimes extend far enough to disturb Earth’s magnetosphere, generating space weather phenomena including auroras or geomagnetic storms, and even damaging power grids on occasion. Scientists believe that when…
Patrick Coles, Jedrzej Kaniewski, and Stephanie Wehner made the breakthrough while at the Centre for Quantum Technologies at the National University of…
OPoLiCom is a system that continuously monitors the access impedance over frequency. If the access impedance spectral density below a threshold value, in the respective frequency range, no power is fed. Since the maximum power consumption of a PLC transmitter is limited, it ensures that in the frequency ranges with sufficiently high access impedance sufficient power can be fed. This is necessary for a good signal-to-noise ratio. By using OFDM with strong channel coding as in the just now standardized method, the absence of a portion of transmission frequencies can be compensated without any information to the receiver. This allows a standard-compliant implementation.
By analyzing relevant words and phrases from fashion reviews, researchers were able to identify a network of influence among major designers and track how…
One important step toward ultrafast imaging of samples with a single X-ray shot is understanding the interaction of extremely brilliant and intense X-ray…
In a development that holds promise for future magnetic memory and logic devices, researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley…
Now astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered that black holes don’t have to be nearly so powerful to shut down…
Physicists are continuously advancing the control they can exert over matter. A German-Spanish team working with researchers from the Max Planck Institute for…
The invention at hand provides novel inhibitors for human proprotein convertase, which have antibacterial and antiviral effects. These inhibitors are multibasic, N-terminally modified tetrapeptide derivatives having a C-terminal P1-arginine mimetic. In contrast to previous active substances against bacterial and viral diseases, the substances presented here do not apply to the pathogenic organism, but the host, so that there is no development of resistance to contend with.
Research collaborations and related networks are becoming increasingly important in developing new technologies, particularly since more and more of these…
The optical signals would then consist of individual light particles or photons. One prerequisite for a working quantum internet is control of the shape of…
The findings are among the first returns from NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) mission, which entered its science phase on Nov. 16. The…
The invention describes a method for the in-situ conversion of chemically fixed carbon dioxide into low-molecular weight organic compounds by direct heterogeneous catalytic or electrochemical hydrogenation.
Scientist at the University of Stuttgart, Germany, have developed a new microtip measuring catheter that is equipped with a triaxial acceleration sensor and several pressure sensors around its circumference. The novel urodynamic catheter has been specifically developed for the diagnosis of urinary incontinence. Its considerable improvement in diagnosis allows for an optimized treatment of incontinence. A prototype of the catheter is currently subject to animal testing.
he novel radiolabeled exendin derivatives provide a highly specific diagnostic tool for the detection of beta cells in the pancreas of patients at risk of developing diabetes or already having diabetes. An imaging protocol has been developed that allows single time point quantitative SPECT/CT imaging to allow for simple, time-efficient clinical imaging.
The product is ready-to-use for clinical applications and gives for the first time the opportunity for detection of changes in beta cell mass in persons with diabetes or at risk to develop the disease. The possibility of beta cell mass quantification is fur-thermore associated to the chance of validation of therapy success with already available medicaments or new drug candidates that may preserve or increase beta cell mass.
The main theme of the book is laser-induced damage, which can occur in the bulk, on the surface or in the coating of optical components, when higher laser…
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