The Argument of Hebrews

This is a commentary on the book of Hebrew

How God is Using the Murder of Nine People to Bring Racial Reconciliation to All People

Race related violence is not a thing of the past. It rears its ugly head in Ferguson, in Chicago, and recently at Mother Emmanuel Church in Charleston South Carolina. Learn how the Church has used the murder of nine members to progress the process of racial reconciliation in the U.S., and how you can help

Organic photovoltaic bulk heterojunctions with spatially varying composition

Models of organic bulk heterojunction photovoltaics which include the effect of spatially varying composition of donor/acceptor materials are developed and analyzed. Analytic expressions for the current-voltage relation in simplified cases show that the effect of varying blend composition on charge transport is minimal. Numerical results for various blend compositions, including the experimentally relevant composition of a donor-rich region near the cathode (a "skin layer" of donor material), show that the primary effect of this variation on device performance derives from its effect on photocharge generation. The general relation between the geometry of the blend and its effect on performance is given explicitly. The analysis shows that the effect of a skin layer on device performance is small.Comment: 6 pages, 5 figure

An assessment of plankton populations, toxic cyanobacteria, and potential impact of introduced marine alewife (Alosa pseudoharengus) in Pawtuckaway Lake, New Hampshire

A field study was conducted during the summer, 2005 to evaluate the lake water quality and planktonic communities in Pawtuckaway Lake, NH. Of special concern was the condition of the plankton populations since the lake had been subjected to introductions of adult sea-run alewife Overall water quality ranged from mesotrophic to eutrophic based on total phosphorus (8-31 !g L-1), chlorophyll a (max South, 5.0 !g L-1) and Secchi disk transparency (max North 5.1 m, min South 2.8 m). Of the three sites sampled, Fundy, North and South, Fundy (Zmax \u3c 2 m) did not stratify and had the highest concentrations of total phosphorus, followed by North and South sites, respectively. North and South sites stratified throughout the summer and developed anoxic hypolimnia, with the most severe oxygen deficit at the North site Potentially toxigenic cyanobacteria were detected at all three sites. Throughout the summer, the concentrations of the cyanotoxin microcystin in the lake were well above the average for NH lakes. Lakewater concentrations of microcystins exceeded WHO drinking water standards (1000 ng L-1) at the North site (1204.0 ng L-1) on July 21. The two dominant cyanobacteria were Anabaena spp.. and Microcystis aeruginosa. Oscillatoria (Planktothrix) were also present, but only rarely and therefore were probably were not responsible for most of the microcystins present in the lakewater

Real-time programmable acoustooptic synthetic aperture radar processor

The acoustooptic time-and-space integrating approach to real-time synthetic aperture radar (SAR) processing is reviewed, and novel hybrid optical/electronic techniques, which generalize the basic architecture, are described. The generalized architecture is programmable and has the ability to compensate continuously for range migration changes in the parameters of the radar/target geometry and anomalous platform motion. The new architecture is applicable to the spotlight mode of SAR, particularly for applications in which real-time onboard processing is required

News coverage of manned space missions

Problems involved in news coverage of manned space mission