Physicists from the University of Kaiserslautern propose the usage of magnons to carry and process information instead of electrons as it is done in…

New supercomputing calculations provide the first evidence that particles predicted by the theory of quark-gluon interactions but never before observed are…

The web can be an opaque black box: it leverages our personal information without our knowledge or control. When, for instance, a user sees an ad about…

“It is well known that bursting bubbles produce aerosol droplets, so we were surprised, and fascinated, to discover that when we covered the water with oil,…

With LOFAR's high sensitivity, the disk of M51 in the radio regime could be traced much further out than before. The astronomers detected cosmic electrons and…

Nearly all black holes fall into one of two classes: big, and colossal. Astronomers know that black holes ranging from about 10 times to 100 times the…

Agile, driven wrist joint with three rotational degrees of freedom: The invention describes a new kind of driven joint, using a specific arrangement of (bevel) gears and motors, which, in combination with a C-shaped rail allow for an energy efficient and accurate usage while having significantly less difficulties with singularities.

Scientists at the University of Göttingen produced different monoclonal antibodies directed against the rat CD88 cell surface receptor, also known as C5aR. C5aR functions as a receptor for the C5a fragment of the complement factor C5. These antibodies can be used to identify C5aR in tissues or cultured cells.

Scientists at the University of Göttingen developed different monoclonal antibodies directed against the human / rat C3a-receptor. C3aR functions as a receptor for the C3a fragment of the complement factor C3, but also binds C4a. C3a binding to the C3a-receptor causes mast cell degranulation (anaphylatoxin).

The maps [see video here] and an accompanying journal article appear in the Aug. 15 issue of the journal Science. The researchers say their work demonstrates a…

The electronics we use for our computers only knows two different states: zero or one. Quantum systems on the other hand can be in different states at once,…

Their technique uses ultrafast pulses of laser light both to control the defect’s entire quantum state and observe how that single electron state changes over…

Background
Using the electroporation process, electrical pulses create pores that allow genetic material to permeate the bacterial membrane of electrocompetent cells. The limiting factor for this standard laboratory method is the efficiency by which DNA can be introduced into E. coli. Commercially available electrocompetent cells are being delivered frozen at about -70 to -80°C. The conventional wisdom is that storage at a higher temperature, for example at -20°C or higher, will result in a significant decrease in viability and transformation efficiency.

Invention

Inventors of Saarland University have established a new method and created a new bacterial strain to generate electrocompetent bacterial cells with a transformation efficiency of up to 5,6 x 1010, which can be handled at room temperature. This electrocompetent cells can be stored at 4°C without losing transformation efficiency. Also the new established protocol is able to improve the transformation efficiencies of commercially available bacterial cells.

Leaf measurements are often critical in plant physiological and ecological studies, but traditional methods have been time consuming and sometimes destructive…

The space between the stars is not empty, but filled with interstellar matter – gas and dust particles. But all dust is not the same: An international team…

Researchers at the University of Tennessee, Knoxville, have made a novel discovery that may potentially protect the world from future collisions with asteroids.