909 research outputs found

    Oregon Wine History Project™ Interview Transcript: Dick Erath

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    This document is a transcription of the interview with winemaker Dick Erath conducted by Jeff D. Peterson on July 8, 2010 as part of the Oregon Wine History Project™. Dick Erath discusses the early days of the Oregon wine industry and gives his personal account of how he came to grow grapes and produce wines in the Willamette Valley. Assisting in the production of this interview were videographers Barrett Dahl and Mark Pederson; exhibit and collections coordinators Barrett Dahl, Sara Juergensen, and Keni Sturgeon (faculty advisor); and project historical researchers Dulce Kersting and Lissa Wadewitz (faculty advisor). The duration of the interview is 57 minutes and 42 seconds

    Adaptive vertex-centered finite volume methods for general second-order linear elliptic PDEs

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    We prove optimal convergence rates for the discretization of a general second-order linear elliptic PDE with an adaptive vertex-centered finite volume scheme. While our prior work Erath and Praetorius [SIAM J. Numer. Anal., 54 (2016), pp. 2228--2255] was restricted to symmetric problems, the present analysis also covers non-symmetric problems and hence the important case of present convection

    Adaptation of translational machinery in malaria parasites to accommodate translation of poly-adenosine stretches throughout its life cycle

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    Malaria is caused by unicellular apicomplexan parasites of the genu

    Mustelid Mugshots : a new camera-tube-lure system as monitoring tool for European polecats (Mustela putorius) in Sweden

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    European polecat (Mustela putorius) populations are reported to be declining in a large part of its range. The species is listed in Annex V of the Habitat Directive, which requires periodical monitoring and reporting of its conservation and distribution trends. However, many countries lack monitoring data for polecats and suitable monitoring methods are missing. In Sweden, the only available data comes from 1) hunters that report their bags and 2) sightings. Robust methods are missing. Therefore, a method for systematic monitoring is needed to get updated data about the polecat distribution and population size. In this study I tested a newly developed tube-lure system (“polecam”) in four study sites in southern Sweden. I did this by placing 49 polecams during a period of two months in both spring (March-April) and fall (September-October) 2021. I related which landscape features influenced the detection probability: the distances from each polecam to the nearest buildings and main roads, the length of hedgerows in a 45m radius buffer around each polecam and a protective cover index (score 1-10) measured in the field. Furthermore I tested if the I3S-software was able to semi-automatically identify polecats in the study sites and were able to photograph their facial masks. However, it was not possible to identify individuals with the software I3S. My analyses of the landscape features showed, in contrast to my expectation, a high detection probability close to main roads, while other landscape features were not associated with the polecat detection. Further adaptions of the polecam and more studies about the landscape features, but also openness about alternative approaches is needed, to be able to develop a robust monitoring system

    Senior Recital: Erica Erath, oboe

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    Junior Recital: Erica Erath, oboe

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