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…
Invention of the first integrated circularly polarized light detector on a silicon chip opens the door for development of small, portable sensors that could…
Researchers and regulators in many fields often need to detect and measure levels of specific substances in a sea of irrelevant molecules, and infrared light…
A synthetic material – created from 1 billion nanomagnets – assumes different aggregate states depending on the temperature: the so-called metamaterial…
In a study featured today in the journal Physical Review Letters, UBC researchers propose a new way to calculate cosmological distances using the bursts of…
Mutualistic associations between plants and fungi
are beneficial to both partners. The fungi interact with the roots and improve, among others, the nutrient supply for their host plants. It is therefore evident to
promote crops by a targeted use of symbiotic fungi. Nevertheless, commercially available inocula for gardening or forestry are rendering only mixed results due to difficult cultivation conditions for the used fungal strains or even security problems.
A cell's life is a noisy affair.
In a paper published in Physical Review A, a team composed of Ali Passian of the Department of Energy's Oak Ridge National Laboratory and Marouane Salhi and…
Limitation of natural sources, especially of fossil resources, for base material that is currently used to produce polyamides and related composites together with the increasing demand of these products, promotes the search for renewable sources of the base material. Fermentation by genetically engineered bacteria gains increasing interest as one of these possible sources.
Cadaverine is a biogenic amine that can be produced by Corynebacterium glutamicum from the amino acid lysine by heterologous expression of a lysine decarboxylase from Escherichia coli.
Overexpression of the patA and patD genes from Escherichia coli in Corynebacterium glutamicum enables the latter to further metabolize cadaverine to 5 aminovalerate (5AVA), which is a potential base material for the production of nylon 5 and a C5 platform for the synthesis of base materials for other polyamides.
Chemical industry is facing an increasing demand on polyamides and related composites, whereas in contrast the accessibility of base material from fossil sources for their production alleviates. Therefore, in seek for alternative and renewable sources, bacterial fermentation has become into focus in several chemical production areas. The offered invention provides such a source for nylon production and related composites.
Tunable lasers are used in a wide range of applications like profilometry, laser spectroscopy, optical sensors for measuring pressure and temperature and optical coherence tomography (OCT). In many applications, a very rapid tuning, i.e. shifting from one wavelength to another is desired. A powerful concept enabling ultra-high tuning rates is e.g. Fourier Domain Locking (FDML).
Design and method for positive locking torque transmission. Common steel wheels can be combined with modern carbon composite shafts. Chipping process steps become unnecessary due to the integration in the shaft manufacturing process.
Today's problems of data availability and quality in life cycle assessment and other environmental analyses hinder evidence based policy decisions as much as…
An international group of physicists, including Aleksandr Golubov, head of the MIPT Laboratory of Topological Quantum Phenomena in Superconductor Systems,…
The manipulation of electromagnetic radiation is an essential function of today's technology. Low frequency radiation — in the kilohertz and megahertz range…
The tulip called Queen of the Night has a fitting name. Its petals are a lush, deep purple that verges on black. An iridescent shimmer dances on top of the…
Researchers from Brown University have taken a major step toward addressing one of those challenges. They've developed what they believe to be the first system…
The present invention provides a stent remover for open surgery which can be used to safely remove a stent without causing tissue damage. In a first step, at least three wires are threaded through the mesh of one end of the stent. Then, all wire ends are fed through a sleeve and fixed with a crimping device. Afterwards, the wires in the sleeve can easily be introduced into the funnel-shaped tube of the stent remover. By operating the turning knob of the device, a uniform and controllable pulling force is exerted to the wires. In this way, the stent constricts evenly and can easily be removed without serious tissue damage. In addition, stent removal with this novel device shortens the operation time, thereby reducing the potential for unforeseen complications. On behalf of RWTH Aachen University, PROvendis offers access to rights for commercial use as well as the opportunity for further co-development.
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