As an extension of the Robinson-Trautman solutions of D = 4 general relativity, we investigate higher dimensional spacetimes which admit a hypersurface orthogonal, non-shearing and expanding geodesic null congruence. Einstein's field equations with an arbitrary cosmological constant and possibly an aligned pure radiation are fully integrated so that the complete family is presented in a closed explicit form. As a distinctive feature of higher dimensions, the transverse spatial part of the general line element must be a Riemannian Einstein space, but it is otherwise arbitrary. On the other hand, the remaining part of the metric is-perhaps surprisingly-not so rich as in the standard D = 4 case, and the corresponding Weyl tensor is necessarily of algebraic type D. While the general family contains (generalized) static Schwarzschild-Kottler-Tangherlini black holes and extensions of the Vaidya metric, there is no analogue of important solutions such as the C-metric.

We discuss different types of measurements targetting the interplay of mechanical motion with electrical transport in suspended single-wall carbon nanotube devices. In driven resonator experiments, the transversal acoustical vibration mode is detected and identified at room temperature using ac down-mixing techniques. In contrast, low-temperature transport spectroscopy enables the observation of the longitudinal acoustic mode in the quantum limit in single electron tunnelling. This vibrational excitation can also be observed in higher order tunnelling current for appropriate electronic coupling to the leads. Experimental roads towards the quantum limit of the transversal vibration mode-as ultimate quantum-limited beam resonator-are explored, e.g. extending both abovementioned measurement techniques. References 12

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The essence of the Oslo method is explained and blind tests of the validity of the method are demonstrated. Furthermore, we focus on experimentally extracted photon strength functions (PSF) from various mass regions. The scissors mode pygmy resonance observed in the rare earth region is discussed and compared with other experiments. Of particular interest is the strong enhancement of low energy !-rays observed for nuclei lighter than mass number A 100. This so-called ! upbend of the PSF has still no theoretical explanation.

Facility (HRIBF) of Oak Ridge National Laboratory (ORNL) by bombarding a 720-µg/cm 2 CD 2 target with a radioactive 18 F beam. The 19 Ne states of interest near the proton threshold decay by breakup into α and 15 O particles. These decay products were detected in coincidence with position-sensitive E−∆E silicon telescopes. The α and 15 N particles from the break up of the mirror nucleus 19 F were also measured with these detectors. Particle identification, coincidence, and Q-value requirements enable us to distinguish the reaction of interest from other reactions.