We report on the experimental realization of a microwave decelerator for neutral polar molecules, suitable for decelerating and focusing molecules in high-field-seeking states. The multistage decelerator consists of a cylindrical microwave cavity oscillating in the TE 11n mode, with n = 12 electric field maxima along the symmetry axis. By switching the microwave field on and off at the appropriate times, a beam of state-selected ammonia molecules with an incident mean velocity of 25 m/s is guided while being spatially focused in the transverse direction and bunched in the forward direction. Deceleration from 20.0 to 16.9 m/s and acceleration from 20.0 to 22.7 m/s are demonstrated.

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A set of ten-period ZnO∕Zn0.85Mg0.15O multiple quantum wells with well thickness varying from 2.5to5nm has been grown on Si(111) substrates by pulsed laser deposition. A periodic structure with sharp interfaces was observed by cross-sectional transmission electron microscopy. The room-temperature photoluminescence resulting from the well regions exhibits a significant blueshift with respect to the ZnO single layer. The well layer thickness dependence of the emission energy from the well regions was investigated and compared with a simple theoretical model. The results suggest that the quantum confinement effects in the quantum wells can be observed up to room temperature.

Conformational landscapes of 2,2,3,3,3-pentafluoro-1-propanol and its hydrogen-bonded dimer were explored at the molecular level using chirped pulse Fourier transform microwave spectroscopy and ab initio calculations.

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A typical finding in dominant infantile optic atrophy (DIOA) is the variation of the phenotypic expression of the DIOA gene even within one family. It The standard conditions for the VECP were as follows: Checkerboard pattern stimuli were generated on a black-and-white TV monitor. The field size of the screen subtended 14-50 by 18-50 and the checks were 38 min of arc. The mean luminance was 30 cd/m2 and the modulation depth was 0 97. The checks were temporally alternated at a modulation rate of four reversals/s (2 Hz). The active electrode was attached 2-3 cm above the inion. The right ear was earthed and the reference electrode fixed to the left ear. All VECP recordings were monocular. In some cases the mean luminance was reduced to 10 cd/M2 and the modulation depth to 0-2 (reduced contrast test

Objectives To determine the long‐term oncological outcome of organ‐confined (

1,1,1,3,3,3‐hexafluoro‐propan‐2‐ol aggregates preferentially into an achiral dimer of achiral monomers, but the trimer is found to prefer three metastable chiral monomer units arranged into a strained OH⋅⋅⋅O hydrogen‐bonded ring, which is reinforced by secondary CH⋅⋅⋅FC interactions. This is shown by a combination of infrared, microwave, and Raman spectroscopy in supersonic jet expansions and supported by high‐level quantum chemical calculations. It involves an activation of the monomers by >15 kJ mol−1, clearly driven by the much stronger hydrogen‐bond interaction available to the gauche and even more to the cis monomer units.