Blue-collar outlook not so blue in Texas

Employment (Economic theory) ; Texas

RESOURCE ALLOCATION IN JOINT PUBLIC-PRIVATE AGRICULTURAL RESEARCH

Federal technology transfer legislation has encouraged increased collaboration between the public and private sectors, including joint research ventures known as Cooperative Research and Development Agreements (CRADAs). While several economically important technologies have been developed through CRADAs, there is concern that CRADA may divert public research from its central research missions. This study compares the pattern of research resource allocation for CRADA projects at the U.S. Department of Agriculture with research priorities of public and private intramural agricultural research. The findings suggest that CRADAs have attracted considerable private co-financing of joint research projects, and may have enabled public research to concentrate more resources on research areas where private incentives are relatively weak.agricultural research, CRADA projects, research priorities, technology transfer, Research and Development/Tech Change/Emerging Technologies,

Non-Linear Signal Processing methods for UAV detections from a Multi-function X-band Radar

This article develops the applicability of non-linear processing techniques such as Compressed Sensing (CS), Principal Component Analysis (PCA), Iterative Adaptive Approach (IAA) and Multiple-input-multiple-output (MIMO) for the purpose of enhanced UAV detections using portable radar systems. The combined scheme has many advantages and the potential for better detection and classification accuracy. Some of the benefits are discussed here with a phased array platform in mind, the novel portable phased array Radar (PWR) by Agile RF Systems (ARS), which offers quadrant outputs. CS and IAA both show promising results when applied to micro-Doppler processing of radar returns owing to the sparse nature of the target Doppler frequencies. This shows promise in reducing the dwell time and increase the rate at which a volume can be interrogated. Real-time processing of target information with iterative and non-linear solutions is possible now with the advent of GPU-based graphics processing hardware. Simulations show promising results

A Far Green Country : Tolkien, Paradise, and the End of All Things in Medieval Literature

Attempts to explain exactly what Frodo goes to when he sails from the Grey Havens. By looking at paradise, purgatory, and earthly Edens in medieval literature and theology, we gain a better understanding of the spiritual purpose of Tolkien’s “far green country” beyond the bent paths of the world. References “Pearl,” “Sir Orfeo,” mystery play cycles, and Sir John Mandeville’s Travels, among other sources

Developing Deaf Students Fraction Skills Requires Understanding Magnitude and Whole Number Division

Research has shown that fraction magnitude and whole number division are important precursors to learning and understanding fractions. Deaf and hard-of-hearing (DHH) students are consistently challenged with learning fractions from K-12 through college. Sixty DHH college students were tested for both their understanding of magnitude between two fractions and their ability to calculate whole number division. The results showed that both understanding the magnitude between two fractions and whole number division are significantly associated with accurately calculating arithmetic functions of fractions with like denominators and different denominators that required them to add, subtract, multiply, and divide two fractions. Understanding fraction magnitude and whole number division were also significantly associated with their self-rated confidence of math performance with fractions. Tangentially, DHH college students’ English reading ability was significantly, but modestly associated with their fraction performance

A cure for unstable numerical evolutions of single black holes: adjusting the standard ADM equations

Numerical codes based on a direct implementation of the standard ADM formulation of Einstein's equations have generally failed to provide long-term stable and convergent evolutions of black hole spacetimes when excision is used to remove the singularities. We show that, for the case of a single black hole in spherical symmetry, it is possible to circumvent these problems by adding to the evolution equations terms involving the constraints, thus adjusting the standard ADM system. We investigate the effect that the choice of the lapse and shift has on the stability properties of numerical simulations and thus on the form of the added constraint term. To facilitate this task, we introduce the concept of quasi well-posedness, a version of well-posedness suitable for ADM-like systems involving second-order spatial derivatives.Comment: 20 pages, 9 figure