The ‘Volatile’ World of Vapor Intrusion: Understanding Vapor Intrusion Regulation and the Potential for Litigation

This article provides a conceptual overview of vapor intrusion, identifies available guidance for assessment of the vapor intrusion pathway, and examines the potential for government enforcement actions, citizen suits, and tort suits involving vapor intrusion

A Search for Variable Stars and Planetary Occultations in NGC2301 I: Techniques

We observed the young open cluster NGC 2301 for 14 nights in Feb. 2004 using the orthogonal transfer CCD camera (OPTIC). We used PSF shaping techniques ("square stars") during the observations allowing a larger dynamic range (4.5 magnitudes) of high photometric precision results ($\le$2 mmag) to be obtained. These results are better than similar observing campaigns using standard CCD imagers. This paper discusses our observational techniques and presents initial results for the variability statistics found in NGC 2301. Details of the variability statistics as functions of color, variability type, stellar type, and cluster location will appear in paper II

Radiative Transfer and Acceleration in Magnetocentrifugal Winds

Detailed photoionization and radiative acceleration of self-similar magnetocentrifugal accretion disk winds are explored. First, a general-purpose hybrid magnetocentrifugal and radiatively-driven wind model is defined. Solutions are then examined to determine how radiative acceleration modifies magnetocentrifugal winds and how those winds can influence radiative driving in Active Galactic Nuclei (AGNs). For the models studied here, both radiative acceleration by bound-free (``continuum-driving'') and bound-bound (``line-driving'') processes are found to be important, although magnetic driving dominates the mass outflow rate for the Eddington ratios studied (L/L_Edd = 0.001 - 0.1). The solutions show that shielding by a magnetocentrifugal wind can increase the efficiency of a radiatively-driven wind, and also that, within a magnetocentrifugal wind, radiative acceleration is sensitive to both the column in the shield, the column of the wind and the initial density at the base of the wind.Comment: 18 pages, 18 figures (7 in color), Accepted by ApJ, in emulateApJ forma

FOREIGN AGRICULTURAL POLICY AND FAR EAST FARM MARKETS

Agricultural and Food Policy,

Environments for Magnetic Field Amplification by Cosmic Rays

We consider a recently discovered class of instabilities, driven by cosmic ray streaming, in a variety of environments. We show that although these instabilities have been discussed primarily in the context of supernova driven interstellar shocks, they can also operate in the intergalactic medium and in galaxies with weak magnetic fields, where, as a strong source of helical magnetic fluctuations, they could contribute to the overall evolution of the magnetic field. Within the Milky Way, these instabilities are strongest in warm ionized gas, and appear to be weak in hot, low density gas unless the injection efficiency of cosmic rays is very high.Comment: 9 pages, 8 figures; Accepted to Ap

Quantum Correlations in Two-Boson Wavefunctions

We present the Schmidt decomposition for arbitrary wavefunctions of two indistinguishable bosons, extending the recent studies of entanglement or quantum correlations for two fermion systems [J. Schliemann et al., Phys. Rev. B {\bf 63}, 085311 (2001) and quant-ph/0012094]. We point out that the von Neumann entropy of the reduced single particle density matrix remains to be a good entanglement measure for two identical particles.Comment: in press at Phys. Rev.