BACKGROUND AND PURPOSE Various magnetic resonance (MR) measurements have been proposed to aid in differentiating between progressive supranuclear palsy (PSP) and idiopathic Parkinson's disease (IPD); however, these methods have not been compared directly. The aim of this study was to determine which measurement method exhibits the highest power to differentiate between PSP and IPD. METHODS Br...

Recent X-ray observations of star-forming galaxies such as M82 have shown the Lyβ/Lyα line ratio of Ne X to be in excess of predictions for thermal electron impact excitation. Here we demonstrate that the observed line ratio may be due to charge exchange and can be used to constrain the ion kinetic energy to be . 500 eV/u. This is accomplished by computing spectra and line ratios via a range of...

We explore whether we can constrain the shape of the initial mass distribution of the star cluster population in M82's ∼ 1 Gyr-old post-starburst region " B " , in which the present-day cluster mass function (CMF) is closely approximated by a log-normal distribution. We conclude that the M82 B initial CMF must have had a mean mass very close to that of the " equilibrium " CMF of Vesperini (1998...

Using the IRAM interferometer, we have observed the nearby starburst galaxy M 82 with a 4. ′′2 resolution (' 70 pc) in the 1→0 line of 13CO and in the λ 2.6-mm continuum. The spatial distribution of the 13CO line shows the same gross features as the 12CO(1→0) map of Shen & Lo (1995), namely two lobes and a compact central source, though with different relative intensities. The lobes are more co...

Cluster analysis is used to produce a small number of job contours more homogeneous in job quality than standard occupation and industry groups. The results indicate a six-contour job structure that is consistent with dual and tripartite labor market segmentation frameworks. This classification scheme is used to examine the effects of employment restructuring in the 1980's by race and gender. W...

Imperatorin (IMP) is the major active ingredient in many common medicinal herbs. We examined the irreversible inhibitory effect of IMP on CYP2B6. IMP produced a timeand concentrationdependent inactivation of CYP2B6. About 70% of activity of CYP2B6 was suppressed after its incubation with 1.5 mM IMP for 9 minutes. KI and kinact were found to be 0.498 mM and 0.079 min , respectively. The loss of ...

We have mapped the superwind/halo region of the nearby starburst galaxy M82 in the mid-infrared with Spitzer − IRS. The spectral regions covered include the H2S(1)− S(3), [NeII], [NeIII] emission lines and PAH features. We estimate the total warm H2 mass and the kinetic energy of the outflowing warm molecular gas to be between Mwarm ∼ 5− 17× 10 6 M⊙ and EK ∼ 6− 20× 10 53 erg. Using the ratios o...

We present results of mid-infrared λ = 5.0 − 16.5 µm spectrophotometric imaging of the starburst galaxies M 82, NGC 253, and NGC 1808 from the ISOCAM instrument on board the Infrared Space Observatory. The mid-infrared spectra of the three galaxies are very similar in terms of features present. The λ > ∼ 11 µm continuum attributed to very small dust grains (VSGs) exhibits a large spread in inte...