45 research outputs found

    A Public–Industry Partnership for Enhancing Corn Nitrogen Research and Datasets: Project Description, Methodology, and Outcomes

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    Due to economic and environmental consequences of N lost from fertilizer applications in corn (Zea mays L.), considerable public and industry attention has been devoted to the development of N decision tools. Needed are research and databases and associated metadata, at numerous locations and years to represent a wide geographic range of soil and weather scenarios, for evaluating tool performance. The goals of this research were to conduct standardized corn N rate response field studies to evaluate the performance of multiple public-domain N decision tools across diverse soils and environmental conditions, develop and publish new agronomic science for improved crop N management, and train new scientists. The geographic scope, scale, and unique collaborative arrangement warrant documenting details of this research. The objectives of this paper are to describe how the research was undertaken, reasons for the methods, and the project’s anticipated value. The project was initiated in a partnership between eight U.S. Midwest land-grant universities, USDA-ARS, and DuPont Pioneer. Research using a standardized protocol was conducted over the 2014 through 2016 growing seasons, yielding a total of 49 sites. Preliminary observations of soil and crop variables measured from each site revealed a magnitude of differences in soil properties (e.g., texture and organic matter) as well as differences in agronomic and economic responses to applied N. The project has generated a valuable dataset across a wide array of weather and soils that allows investigators to perform robust evaluation of N use in corn and N decision tools

    Exile Vol. XL No. 1

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    38th Year Title Page by Carrie Horner \u2797 i Epigraph by Ezra Pound ii Table of Contents iii-iv Vertigo by Lisa Stillman \u2795 1 Departing Flight by Morgan Roper \u2794 2 Untitled by Lizzie Loud \u2795 3 Marietta by Craig McDonough \u2794 4 Interlaken by Kira A . Pollack \u2794 5 Why Nature Surprises Us by Josh Endicott \u2796 6-7 Untitled by Colin Mack \u2794 7 My Father by Matt Wanat \u2795 8 Legs In The Dust by Alison Stevens \u2795 9-11 Untitled by Lilly Streett \u2794 12 of cigarettes, saltwater and death... by Tricia B. Swearingen \u2794 13 Serendipity by Lizzie Lout \u2795 14 Untitled by Lilly Streett \u2794 15 Summer by Allison Lemieux \u2795 16 And the Rain Fell by Jeremy Aufrance \u2795 17-18 Main Street by Elise Gargarella \u2795 19 Füssen by Morgan Roper \u2794 20 Lightning on the Snow by Matt Wanat \u2795 21 A discussion of 12 year-old murders, of course by Jeremy Aufrance \u2795 22 Get your hands off my hat by Jamie Oliver \u2794 23 The Hero by Sara Sterling Ely \u2796 24-26 Punker Dave by Trevett Allen \u2795 27 still looking for the perfect line by ryan shafer \u2794 28-29 Untitled by Lizzie Loud \u2795 30 Civil War by Katherine Anne Campo \u2794 31 Disposable belief by ryan shafer \u2794 32-33 Schizophrenic Sylvia by Maria Mohiuddin \u2795 34 Excerpts from Revolutions, a novel by Marcu McLaughlin \u2794 35-36 Untitled by Keith Chapman \u2795 37 The Survivors by Kira A. Pollack \u2794 38 Days of Prophecy by Trey Dunham \u2794 39 Untitled by Carrie Horner \u2797 40 What to do by Christopher Harnish \u2794 41 Familiar Stranger by Lisa Stillman \u2795 42-46 Untitled by John Salter \u2797 47 On Meeting Emma by Allison Lemieux \u2795 48 Nude Figure by James Oliver \u2794 49 Tathagata by Leslie Dana Wells \u2794 50 On Fences and My Dogs by Christopher Harnish \u2794 51 Editorial Board 52 Cover, Kira Pollack \u2794 -iv Editorial decision is shared equally among the Editorial Board. -5

    A Public–Industry Partnership for Enhancing Corn Nitrogen Research and Datasets: Project Description, Methodology, and Outcomes

    Get PDF
    Due to economic and environmental consequences of N lost from fertilizer applications in corn (Zea mays L.), considerable public and industry attention has been devoted to the development of N decision tools. Needed are research and databases and associated metadata, at numerous locations and years to represent a wide geographic range of soil and weather scenarios, for evaluating tool performance. The goals of this research were to conduct standardized corn N rate response field studies to evaluate the performance of multiple public-domain N decision tools across diverse soils and environmental conditions, develop and publish new agronomic science for improved crop N management, and train new scientists. The geographic scope, scale, and unique collaborative arrangement warrant documenting details of this research. The objectives of this paper are to describe how the research was undertaken, reasons for the methods, and the project’s anticipated value. The project was initiated in a partnership between eight U.S. Midwest land-grant universities, USDA-ARS, and DuPont Pioneer. Research using a standardized protocol was conducted over the 2014 through 2016 growing seasons, yielding a total of 49 sites. Preliminary observations of soil and crop variables measured from each site revealed a magnitude of differences in soil properties (e.g., texture and organic matter) as well as differences in agronomic and economic responses to applied N. The project has generated a valuable dataset across a wide array of weather and soils that allows investigators to perform robust evaluation of N use in corn and N decision tools

    Geographic and temporal trends in the molecular epidemiology and genetic mechanisms of transmitted HIV-1 drug resistance:an individual-patient- and sequence-level meta-analysis

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    Regional and subtype-specific mutational patterns of HIV-1 transmitted drug resistance (TDR) are essential for informing first-line antiretroviral (ARV) therapy guidelines and designing diagnostic assays for use in regions where standard genotypic resistance testing is not affordable. We sought to understand the molecular epidemiology of TDR and to identify the HIV-1 drug-resistance mutations responsible for TDR in different regions and virus subtypes.status: publishe

    Portland Public Schools Waste Stream Analysis

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    The purpose of this study is twofold. The first part of the study is an analysis of the waste stream from a sample of seven Portland Public Schools. The second part of the study provides recommendations· for waste reduction, recycling opportunities and potential cost savings for the district. In order to receive the greatest benefits from waste reduction, it will be important to tie in recycling education with facilities management

    Empirical Progeny Equivalent of Genotyped Animals in a Multi-breed Beef Cattle Genetic Evaluation Using a Single-step Bayesian Regression Model

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    The objective of this study was to measure the accuracies of genomic enhanced EPDs of genotyped animals in an international multi-breed beef cattle genetic evaluation using single-step Bayesian regression model. The average Breed Improvement Federation (BIF) accuracies of genotyped animals with no progeny information compared to the average BIF accuracies of non-genotyped sires with different number of progenies with observed phenotypes. The results show that the BIF accuracy of a genotyped animal is equivalent to the BIF accuracy of a non-genotyped sire with 21, 22 and 24 progeny with observed phenotypes for birth, weaning and yearling weights, respectively. The empirical progeny equivalent (PE) for calving ease direct and total maternal were 15 and 3, and it was 18 and 25 for milk and stayability, respectively. These results demonstrate the value of DNA testing of selection candidates for beef cattle breeders across the world.</p

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    ii Acknowledgements This stormwater pollution prevention and good housekeeping operation and maintenance plan was funded by the Yakima County Regional Stormwater Management Program including Yakima County and the Cities of Yakima, Sunnyside, and Union Gap. A portion of this funding originated from Washington Department of Ecology grants. The following individuals provided review and input of the model plan to the primary author. The City of Yakima specific plan was then developed from this model plan with assistance from those individuals associated with the City of Yakima. Name
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