14,176 research outputs found
The Eastward Enlargement of the Eurozone: Trade and FDI
Trade and FDI, Economic Integration
The meteorologically driven circulation in mid-Chesapeake Bay
Utilizing 20 days of sea level elevation and current records in mid-Chesapeake Bay, the frequency structure of the meteorological forcing is investigated. For periods longer than 8 days the residual sea level inside the Bay is coupled to the coastal elevation forced by the onshore-offshore component of the wind, while at the 3â8 day scale the system was driven by the local longitudinal wind component. It is suggested, however, that the partition of energy between the longitudinal and lateral wind components may determine whether the Bay responds locally to the wind or to the coastal elevations. The 2â2.5 day sea level oscillations could not be identified with a seiche in the Bay; their source is not clear, but the atmospheric pressure is a possibility.The vertical structure of the residual currents through two cross-sections shows that the layers in the upper 8 m are directly driven by the wind, while in the deeper layers the flow is opposite the wind as a result of the surface slope associated with it. The lag in this counter flow increases from the bottom up and is explained in terms of the phase lag of the surface slope response to the wind and the depth dependence of the current response to the wind
GM1 Gangliosidosis, Late Infantile Onset Dystonia, and T2 Hypointensity in the Globus Pallidus and Substantia Nigra
BACKGROUND: GM1 gangliosidosis is a rare disease due to mutations in the GLB1 gene and
autosomal recessive deficiency of b-galactosidase. There is considerable overlap between classical phenotypes and clinical and imaging findings, which are often difficult to interpret. PATIENT: The patient in this study had dysmorphism, dysostosis, progressive dystonia, and T2 hypointensity in the basal ganglia. Partially similar clinical and radiologic findings were described previously in two reports. CONCLUSIONS: T2 hypointensity in the
globus pallidus should, in the appropriate clinical setting, lead to consideration of thediagnosis of GM1 gangliosidosis
Close encounters involving RAVE stars beyond the 47 Tucanae tidal radius
The most accurate 6D phase-space information from the Radial Velocity
Experiment (RAVE) was used to integrate the orbits of 105 stars around the
galactic globular cluster 47 Tucanae, to look for close encounters between them
in the past, with a minimum distance approach less than the cluster tidal
radius. The stars are currently over the distance range 3.0 kpc d 5.5
kpc. Using the uncertainties in the current position and velocity vector for
both, star and cluster, 105 pairs of star-cluster orbits were generated in a
Monte Carlo numerical scheme, integrated over 2 Gyr and considering an
axisymmetric and non-axisymmetric Milky-Way-like Galactic potential,
respectively. In this scheme, we identified 20 potential cluster members that
had close encounters with the globular cluster 47 Tucanae, all of which have a
relative velocity distribution (V) less than 200 km s at the
minimum distance approach. Among these potential members, 9 had close
encounters with the cluster with velocities less than the escape velocity of 47
Tucanae, therefore a scenario of tidal stripping seems likely. These stars have
been classified with a 93\% confidence level, leading to the identification of
extratidal cluster stars. For the other 11 stars, V exceeds the escape
velocity of the cluster, therefore they were likely ejected or are unassociated
interlopers.Comment: 10 pages, 6 figures, 2 table, Accepted for publication in MNRA
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