Sharpening the Cutting Edge: Corporate Action for a Strong, Low-Carbon Economy

Outlines lessons learned from early efforts to create a low-carbon economy, current and emerging best practices, and next steps, including climate change metrics, greenhouse gas reporting, effective climate policy, and long-term investment choices

The Christian Commonwealth: or, The Civil Policy of the Rising Kingdom of Jesus Christ

John Eliot (1604-1690), the Puritan missionary to the New England Indians, developed this plan of political organization for the Christianized tribes that he converted. In the late 1640s, he adapted it for English use and sent a manuscript copy to England, where it appeared in print 10 years later, in 1659, following the death of Cromwell and before the accession of Charles II. Eliot’s “Preface” to the work was far more radical and troublesome than the utopian theocracy described in the main body. “Much is spoken of the rightful Heir of the Crown of England, and the unjustice of casting out the right Heir: but Christ is the only right Heir of the Crown of England, and of all other Nations also.” He proposed to the English nation, “That you would now set the Crown of England upon the head of Christ, whose only true inheritance it is,” and set their “civil polity” on the model given by God to Moses in the wilderness (in Exodus 18), so that “then shall the will of God be done on earth, as it is done in heaven.” The work throughout anticipates an imminent start of the millennium. Within three years the book had been banned, and Eliot was forced to issue a public retraction and apology. His unique and fascinating work has been called the first book of political theory written by an American and also the first book to be banned by an American government.This online edition reproduces the full text of the original, including the contemporary spellings and punctuation. A few typographic errors have been corrected and are noted.https://digitalcommons.unl.edu/zeaamericanstudies/1029/thumbnail.jp

Influence of surface tension in the surfactant-driven fracture of closely-packed particulate monolayers

A phase-field model is used to capture the surfactant-driven formation of fracture patterns in particulate monolayers. The model is intended for the regime of closely-packed systems in which the mechanical response of the monolayer can be approximated as a linearly elastic solid. The model approximates the loss in tensile strength of the monolayer as the surfactant concentration increases through the evolution of a damage field. Initial-boundary value problems are constructed and spatially discretized with finite element approximations to the displacement and surfactant damage fields. A comparison between model-based simulations and existing experimental observations indicates a qualitative match in both the fracture patterns and temporal scaling of the fracture process. The importance of surface tension differences is quantified by means of a dimensionless parameter, revealing thresholds that separate different regimes of fracture. These findings are supported by newly performed experiments that validate the model and demonstrate the strong sensitivity of the fracture pattern to differences in surface tension.Comment: 10 pages, 11 figures, and 3 table

Multiflow TCP, UDP, IP, and ATM Traffic Generation Module

Networking devices must be capable of processing traffic flows from multiple sources. In order to verify that such devices operates properly, a network testbench can be used to inject traffic into the device. The specification of the traffic flows can be difficult. At the low level, there are header fields, data checksums, and packet length fields that all must be formatted correctly. Further, there can be multiple flows of traffic that will arrive simultaneously. It is desirable to specify traffic at a high level of abstraction. A software program can then be written to parse the specification and generate the low-level data that is actually processed by the networking hardware. For this project, a traffic generation program was built that accepts high-level traffic flow specifications. The program generates a cell-by-cell representation of the combined traffic flows. These flows can then be read by a testbench and fed into a simulation. With a hardware module capable of sending traffic created from the above program, a hardware test can be conducted using traffic generated with this program

Optical Coronagraphic Spectroscopy of AU Mic: Evidence of Time Variable Colors?

We present coronagraphic long slit spectra of AU Mic's debris disk taken with the STIS instrument aboard the Hubble Space Telescope (HST). Our spectra are the first spatially resolved, scattered light spectra of the system's disk, which we detect at projected distances between approximately 10 and 45 AU. Our spectra cover a wavelength range between 5200 and 10200 angstroms. We find that the color of AU Mic's debris disk is bluest at small (12-35 AU) projected separations. These results both confirm and quantify the findings qualitatively noted by Krist et al. (2005), and are different than IR observations that suggested a uniform blue or gray color as a function of projected separation in this region of the disk. Unlike previous literature that reported the color of AU Mic's disk became increasingly more blue as a function of projected separation beyond approximately 30 AU, we find the disk's optical color between 35-45 AU to be uniformly blue on the southeast side of the disk and decreasingly blue on the northwest side. We note that this apparent change in disk color at larger projected separations coincides with several fast, outward moving "features" that are passing through this region of the southeast side of the disk. We speculate that these phenomenon might be related, and that the fast moving features could be changing the localized distribution of sub-micron sized grains as they pass by, thereby reducing the blue color of the disk in the process. We encourage follow-up optical spectroscopic observations of the AU Mic to both confirm this result, and search for further modifications of the disk color caused by additional fast moving features propagating through the disk.Comment: Accepted by AJ, 13 pages, 8 figures, 1 tabl