single pass Bethune type cell using LDS-867 to an energy of about 4 μJ. The second continuum was used as the probe pulse. The polarization of the pump and probe pulses were generally set at the magic angle, although experiments were also performed with parallel and perpendicular polarizations. The instrument response function, determined by monitoring the bleaching of the dye IR-143, was typica...

The magnetooptic effect is due to a change in the polarization of the light when it is reflected or passes through a magnetized material. The rotation of the polarization plane is proportional to the magnetic field. The great advantage of using a magnetooptic sensor to measure currents or magnetic fields is its wide bandwidth. It can reach the magnitude of several GHz. This fact is widely known...

BACKGROUND Ultrasound induces mechanical vibration and heat, causing differentiation and proliferation in osteoblasts. All known in vitro evaluations of ultrasound are, however, performed with longitudinal ultrasound waves. We addressed a question: Do other forms of ultrasound waves, such as guided waves (longitudinal and guided flexural) transduced at a remote location, enhance differentiation...

Toward the goal of delamination detection and quantification in laminated composites, this paper examines guided wave propagation and wave interaction with delamination damage in laminated carbon fiber reinforced polymer (CFRP) composites using frequency-wavenumber (f-k) analysis. Three-dimensional elastodynamic finite integration technique (EFIT) is used to acquire simulated time-space wavefie...

THE JOURNAL OF CARDIOVASCULAR SURGERY 1 enable the patient to enter into a relaxed state in preparation for sleep. Within this state, the brain naturally progresses through alpha and delta brainwave stages leading to the most conducive condition of mind and body for deep, natural sleep.11-14 The goal of this preliminary investigation was to lay the groundwork to test the applicability of using ...

Recently, Haferlach, Wessnitzer, Mangan, and Webb (2007) reported on the production of a novel neural model of the animal behavior known as path integration, a navigation process requiring a compass and an odometer. Here, we comment on comparisons that their paper makes with our earlier work (Vickerstaff & Di Paolo, 2005) where we also evolved a neural model of path integration. The authors mak...

The surface modes of a composite consisting of aligned metallic wires with square cross sections are investigated, on the basis of photonic band structure calculations. The effective long-wavelength dielectric response function is computed, as a function of the filling fraction. The dependence of the optical absorption on the shape of the wires and the polarization of light is discussed, and th...

abstract  background: the brain response to temporal frequencies (tf) has been already reported, but with no study reported for different tf with respect to various spatial frequencies (sf).  materials and methods: fmri was performed by 1.5t ge-system in 14 volunteers during checkerboard, with tfs of 4, 6, 8 and 10hz in low and high sfs of 0.5 and 8cpd.  results: average percentage bold signal ...