2001 Platte River Basin Ecosystem Symposium Proceedings

Over 75 people braved the wintry weather to attend the Eleventh Platte River Basin Ecosystem Symposium that convened in Kearney on 27 February 2001. Icy roads lead to cancellation of only 2 papers. Seventeen papers were presented and 5 posters were on display. Nebraska Public Radio and NTV News covered the event. The presentations were excellent and participants were well satisfied with not only the program but also the food. This year the symposium broadened its charge to include more discussion on community-based environmental protection, sustainable development, and policy-making. The Symposium was sponsored by the University of Nebraska Cooperative Extension Platte Watershed Program in cooperation with the U.S. Environmental Protection Agency - Region VII, the U.S. Department of Agriculture/CSREES, the U.S. Fish and Wildlife Service, and the University of Nebraska Water Center. • Part I of the proceedings contains papers submitted for publication. • Part II contains a complete set of abstracts of oral and poster presentations. Part I: Papers Instream Flow Rights for the Platte River- A Major Tributary of the Missouri River Eugene J. Zuerlein , J.L. Hutchinson, Steve Schainost, and Ross Lock. Nebraska Game and Parks Commission Endangered Species Act / Recovery Drives Platte River Cooperative Agreement Jerry Vandersnick, Kearney NE Converting Row Crop Area to Permanent Pasture Bob Scriven, UN Coop Extension, Kearney NE Do You See What I See?: Looking at Conservation and Sustainability in the Central Platte Valley from an Anthropological Perspective John T. Heaston, The Nature Conservancy, Aurora, NE Wintering Bald Eagle Survey of the CNPPID Supply Canal and Lake McConaughy 1992-1999 Mark M. Peyton, Central Nebraska Public Power and Irrigation District, Gothenburg, NE Upper Platte River Fish Diversity and Abundance Sampling 1997 and 1998 Mark M. Peyton, Central Nebraska Public Power and Irrigation District, Gothenburg, NE Part II: Abstracts Mapping Sandhill Crane Roost Sites Along the Central Platte River Using Aerial Infrared Videography P.J. Kinzel, U.S.Geological Survey, Water Resources Division, Denver CO; R.S. Parker, U. S. Geological Survey, Denver CO; J.M. Nelson, U. S. Geological Survey, Denver, CO; M. Starbuck, U.S. Geological Survey, Rolla, MO; L. Davis, Davis Aviation Is Stability of the Platte River Myth or Reality? A. Steele Becker and Jacqueline V. Becker, Department of Geography and Earth Science, University of Nebraska at Kearney, Kearney NE Soil Vegetation Correlations along Hydrologic Gradients in the Platte River Wet Meadows Andrew W. Simpson and Harold G. Nagel, Department of Biology, University of Nebraska at Kearney, NE From Main Channel to Riverine Landscape: Maintaining Hydrological Connectivity on the Platte River Floodplain Wanli Wu, School of Natural Resource Sciences, University of Nebraska-Lincoln, Lincoln, NE Linking the Hydroperiod to Riparian Grassland Plant Species of the Platte River in central Nebraska Robert J. Henszey and Kent Pfeiffer, Platte River Whooping Crane Maintenance Trust, Wood River, NE; Janet Keough, USGS Patuxent Wildlife Research Center, Laurel, MD Land Management Effects on Invertebrate Diversity in Riparian Meadows of the Platte River in South-Central Nebraska Justin R. Krahulik and W. Wyatt Hoback, Department of Biology, University of Nebraska at Kearney, Kearney NE; Craig A. Davis, Whooping Crane Maintenance Trust, Inc., Wood River NE Alternative Methods to Maintain and Enhance Wet Meadow Habitat Along the Platte River, Nebraska Mark M. Czaplewski, Central Platte NRD, Grand Island NE; James J. Jenniges, Nebraska Public Power District, Kearney NE; Mark J. Humpert, Nebraska Game and Parks Commission, Kearney NE; Mark M. Peyton, Central Nebraska Public Power and Irrigation District, Gothenburg NE Platte River Color-Infrared Orthophotographs Available through the Internet Michael Starbuck, U.S. Geological Survey, Mid-Continent Mapping Center, Rolla, Missouri Reflections on EPAs CBEP Project Robert Fenemore, Project Manager, U.S. EPA Region VII, Kansas City MO The Platte River Corridor Initiative William S. Whitney, Prairie Plains Resource Institute, Aurora NE Influencing the Nest Site Selection of Least Terns and Piping Plovers Jeffrey F. Marcus, University of Nebraska, Lincoln, NE; John J. Dinan, Nebraska Game and Parks Commission; Lincoln, NE; Ron J. Johnson, University of Nebraska, Erin E. Blankenship, University of Nebraska, and Jeanine Lackey, University of Nebraska Factors Influencing Soil Macroinvertebrate Communities in Riparian Grasslands of the Central Platte River Flood Plain Craig A. Davis, Platte River Whooping Crane Maintenance Trust, Wood River, NE; Jane E. Austin, USGS Biological Resources Division, Northern Prairie Wildlife Research Center, Jamestown, ND Changes in Abundance and Distribution of Wintering Canada Geese Along the Platte Rivers of Nebraska, 1960-2000 Mark P. Vrtiska, Nebraska Game and Parks Commission, Lincoln, NE; Nick Lyman, Nebraska Game and Parks Commission, North Platte, NE Changes in Waste Corn Availability Affect Fat Storage by Sandhill Cranes Staging in the Central Platte River Valley, Nebraska Gary L. Krapu and David A. Brandt. USGS, Northern Prairie Wildlife Research Center, Jamestown, ND Yellow-billed Cuckoo Subspecies Designation Along the North Platte River and Other Locations in Nebraska, a New Endangered Taxon? William C. Scharf, Ecological Inventory, Traverse City, M

Two-Scale Annihilation

The kinetics of single-species annihilation, $A+A\to 0$, is investigated in which each particle has a fixed velocity which may be either $\pm v$ with equal probability, and a finite diffusivity. In one dimension, the interplay between convection and diffusion leads to a decay of the density which is proportional to $t^{-3/4}$. At long times, the reactants organize into domains of right- and left-moving particles, with the typical distance between particles in a single domain growing as $t^{3/4}$, and the distance between domains growing as $t$. The probability that an arbitrary particle reacts with its $n^{\rm th}$ neighbor is found to decay as $n^{-5/2}$ for same-velocity pairs and as $n^{-7/4}$ for $+-$ pairs. These kinetic and spatial exponents and their interrelations are obtained by scaling arguments. Our predictions are in excellent agreement with numerical simulations.Comment: revtex, 5 pages, 5 figures, also available from http://arnold.uchicago.edu/~eb

Florida.

1834 map of Florida published under the superintendence of the Society for the Diffusion of Useful Knowledge. Map contains inset of Florida panhandle. Map denotes counties, indian boundary line, and Seminole indian reservation. Map scale [1:1,800,00] (W 87º--W 80º/N 30º--N 25º).https://stars.library.ucf.edu/cfm-images/1836/thumbnail.jp

Eleventh annual report of the Society for the Diffusion of Christian & General Knowledge among the Chinese, for the year ending 31st October, 1898

In volume lettered: Pamphlets on China, 23

Presentation of a new Method for Determination of Diffusion Coefficients of Gaseous Pollutants in Cladding Wall Materials Indoors

Abstract. Diffusion and partition coefficients are two key parameters of importance for the characterization of building materials as sources and sinks of air pollutants indoors. The number of coefficients for each pair 'chemical compound -material surface' available in the literature are still scarce and with a high discrepancy in the results obtained by different methods, even for the same method Intoduction The quality of the indoor environment of non-industrial buildings has been receiving a growing interest from the scientific community due to the implications of the 'non quality' on the health and well being of the occupants. Many studies present construction and cladding materials as main sources of indoor air pollution, particularly of volatile organic compounds (VOC). In this context the development of mathematical models for the prevision of the concentration of pollutants in real situations requires the previous study of the behaviour of the materials vs pollutants to quantify the parameters involved, represented namely by the diffusion coefficients and partition coefficients Research methods Diffusion is the mode of mass transfer of a compound caused by a concentration gradient. Diffusion transport of gases in building materials involves a complex variety of processes including molecular, Knudsen and surface diffusion within the porous interstice

Livre numérique et terminaux de lecture, quels usages ? – note d’analyse

L’Hadopi (DREV) publie une note d’analyse sur les usages des terminaux de lecture. La présente note propose une analyse des usages des terminaux de lecture selon les profils de lecteurs et les comportements de lecture. En particulier, un focus est réalisé sur les genres de livres lus en numérique (livre pratique notamment) et les usages des supports de lecture. Cette note s’appuie sur l’étude Hadopi-GLN « Perceptions et usages du livre numérique » réalisée par l’IFOP (octobre 2014)

Cooperative system of agricultural research.

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Exploration des pratiques culturelles dématérialisées des très jeunes consommateurs

L’Hadopi publie une étude sur l’usage du Smartphone dans les pratiques culturelles des 8-14 ans. Leur consommation, centrée sur la vidéo, la musique et les jeux, essentiellement gratuits, alterne les pratiques licites et illicites. La lecture sur écran reste occasionnelle, le format papier étant très largement favorisé par les jeunes. Cependant, la lecture et l’échange de romans et mangas amateurs sur les réseaux sociaux est un phénomène qui s’amplifie chez les 10-14 ans

Les partenaires de la SABIX pour cette réalisation

GHDSO (Université Paris-Sud XI) Le GHDSO (Groupe d’Histoire et de la Diffusion des Sciences d’Orsay) fait partie de l’équipe d’accueil Études sur les Sciences et les Techniques (EA 1610), équipe d’accueil de l’École doctorale ED n° 456. Les recherches historiques du groupe s’attachent à l’étude de différents modes de circulation et transmission des connaissances scientifiques, combinant une attention particulière aux contenus et pratiques des savoirs en question, à leurs enjeux dans la socié..