We investigated the contributions of the cerebellum and the motor cortex (M1) to acquisition and retention of human motor memories in a force field reaching task. We found that anodal transcranial direct current stimulation (tDCS) of the cerebellum, a technique that is thought to increase neuronal excitability, increased the ability to learn from error and form an internal model of the field, w...

BACKGROUND The major cat allergen Fel d I consists of two polypeptide chains linked by disulfide bonds, each of which has been expressed in bacteria. To investigate the antigenic structure of Fel d I, antibody binding to the native molecule and to each recombinant chain were compared. METHODS Polyclonal human IgE and IgG antibodies and monoclonal antibodies (mAbs) to Fel d I were compared for...

Free-Electron Laser (FEL) is an all-electric, high-power, high beam-quality source of coherent radiation, tunable – unlike other laser sources – at any wavelength within wide spectral region from hard X-rays to far-IR and beyond. After the initial push in the framework of the "Star Wars" program, the FEL technology benefited from decades of R&D and scientific applications. Presently, there are ...

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Suppose Q is a family of discrete memoryless channels. An unknown member of Q will be available, with perfect, causal output feedback for communication. Is there a coding scheme (possibly with variable transmission time) that can achieve the Burnashev error exponent uniformly over Q ? For two families of channels we show that the answer is yes. Furthermore, for each of these two classes, in add...

The PEGASUS photo injector at UCLA can produce a photo-electron beam with a normalized emittance of 2 mm·mrad at an energy of 12-15 MeV, capable of driving a Free-Electron Laser in the mid IR regime. The FEL program, associated with the PEGASUS injector and presented here, is based on a Self-Amplifying Spontaneous Emission (SASE) FEL. The studies focus on increasing the efficiency of an FEL by ...

At the Duke Free Electron Laser (FEL) Laboratory, there are two FEL machines: the Mark III infrared FEL and the OK-4/Storage Ring, which produces UV and XUV laser beam as well as gamma rays via Compton backscattering. The recent status of Mark-III machine is described in another paper [1]. Here we will concentrate on the new development of the OK-4/Storage Ring FEL and its performance and capab...

We propose a novel technique to grow the single-walled carbon nanotubes (SWNTs) with specific chirality at the desired position using free electron laser (FEL) irradiation during growth and surface treatment. As a result, only the semiconducting SWNTs grew at the area between triangle electrodes, where the ozone treatment was done to be hydrophilic when an alcohol chemical vapor deposition (ACC...

Tunability is one of the key aspects of any laser system. In High-Gain Harmonic Generation Free Electron Laser (HGHG FEL) the seed laser determines the output wavelength. Conventional scheme of tunable HGHG FEL requires tunable seed laser. The alternative scheme [1] is based on compression of the electron bunch with energytime correlation (chirped bunch) in the FEL dispersive section. The chirp...

BACKGROUND When exposed to a continuous directional discrepancy between movements of a visible hand cursor and the actual hand (visuomotor rotation), subjects adapt their reaching movements so that the cursor is brought to the target. Abrupt removal of the discrepancy after training induces reaching error in the direction opposite to the original discrepancy, which is called an aftereffect. Pre...