16,586 research outputs found

    Powers\u27 Parent engagement in early learning (Book Review)

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    A review of Powers, J. (2106). Parent engagement in early learning. St. Paul, MN: Redleaf Press. 173 pp. $29.95. ISBN 978160554438

    Cook\u27s The burning of the White House (Book Review)

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    A review of Cook, J. H. (2106). The burning of the White House. Washington DC: Regnery History. 433 pp. $29.99. ISBN 978162157478

    A process yields large quantities of pure ribosome subunits

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    Development of process for in-vitro protein synthesis from living cells followed by dissociation of ribosomes into subunits is discussed. Process depends on dialysis or use of chelating agents. Operation of process and advantages over previous methods are outlined

    A History of Miranda and Why It Remains Vital Today

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    Engineering Guidelines for Clean Assembly and Sterilization of Spaceflight Hardware

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    Engineering specifications for clean assembly and sterilization of space flight hardware to prevent contamination of planetary environment

    CF6 Jet Engine Performance Improvement: High Pressure Turbine Active Clearance Control

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    An active clearance control system was developed which reduces fuel consumption and performance degradation. This system utilizes compressor discharge air during takeoff and fan discharge air during cruise to impinge on the shroud structure to improve the thermal response. The system was evaluated in component and engine tests. The test results demonstrated a performance improvement of 0.7 percent in cruise SFC

    Tracking productivity in real time

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    Because volatile short-term movements in productivity growth obscure the underlying trend, shifts in this trend may go unrecognized for years - a lag that can lead to policy mistakes and hence economic instability. This study develops a model for tracking productivity that brings in additional variables to help reveal the trend. The model's success is evident in its ability to detect changes in trend productivity within a year or two of their occurrence. Currently, the model indicates that the underlying trend remains strong despite recent weak productivity data.Industrial productivity - Measurement ; Economic policy ; Econometric models

    A TIME-SERIES ANALYSIS OF THE U.S. DURUM WHEAT AND PASTA MARKETS

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    A quarterly, partial-equilibrium vector-autoregression model of the U.S. durum wheat and pasta markets was estimated and simulated under three trade-barrier changes that are of potential relevance for the current round of WTO agricultural negotiations: a rise in the U.S. market-clearing durum wheat quantity from increased imports; a policy- or tariff- reduction-induced decline in U.S. durum wheat price; and a tariff-induced rise in U.S. pasta product prices. In response to each shock, an array of quarterly dynamic response characteristics are examined: response reaction times, direction and pattern of quarterly responses, response durations, response multipliers, and strength of durum/pasta market interrelationships.Industrial Organization,
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