2,228 research outputs found

    An Initial Estimate of the Cost of Lost Climate Regulation Services Due to Changes in the Arctic Cryosphere

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    Outlines how arctic sea ice and snow cover help maintain the global climate and ecosystems, the impact of changes in sea and land reflectivity and methane emissions, research on the social cost of carbon, and the estimated economic cost of climate change

    12th Biennial Symposium Program, Part 2: Concurrent Local Exhibitions at Participating Museums and Galleries

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    Cooper Gallery at Morrill Hall -- A Turning Point: Navajo Weaving in the Late Twentieth Century http://www-museum.unl.edu Eisentrager-Howard Gallery -- Binary Fiction: Digital Weaving 2010 http://www.unl.edu/art/facilities_eisentrager-howard.shtml Lentz Center for Asian Culture -- Color and Pattern: Tribal and Contemporary Ikats of India and Laos http://www.unl.edu/lentz Nebraska History Museum -- Willa Cather: A Matter of Appearances http://www.nebraskahistory.org Rotunda Gallery -- Fiber, Textiles, and Clothing: UNL Graduate Students in Textiles, Clothing, and Design http://union.unl.edu/city/rotunda_gallery.php Sheldon Museum of Art -- New Material World: Rethreading Technology http://www.sheldonartgallery.org International Quilt Study Center & Museum http://www.quiltstudy.org -- South Asian Seams: Quilts from India, Pakistan and Bangladesh International Quilt Study Center & Museum -- Childhood Treasures: Doll Quilts from the Ghormley Collection International Quilt Study Center & Museum -- Quilts from the Beggar’s Camp International Quilt Study Center & Museum -- The Quilted Conscience Robert Hillestad Textiles Gallery http://textilegallery.unl.edu -- Component Parts: Textiles, Clothing and Design Faculty Exhibition Robert Hillestad Textiles Gallery -- Native American Beadwork by Harriet Sleeper Robert Hillestad Textiles Gallery -- Nebraska Bead Society Elder Gallery -- American Tapestry Biennial 8 http://www.nebrwesleyan.edu/services/elder_gallery Lux Center for the Arts -- Unsettled: Xia Gao http://www.luxcenter.org Bella Skin Care and Massage Therapy -- A Girl I Loved Before http://www.bellabodyworks.com Chocolate Cake Communication Design -- Fashion Show http://www.chocolatecakedesign.com Project Room & Dushan Creative -- Anna Von Mertens: AZMT & Aura http://www.projectroom.us & http://www.dushancreative.com Tugboat Gallery -- Surrounded: Large and Small Work by Lillian Elliott Awardees http://www.tugboatgallery.com Burkholder Project -- Fibonacci: Stripes and Beyond http://www.burkholderproject.com Gallery 9 -- Needlepoint by Stephen Beal http://www.gallerynine.com Haydon Art Center -- Stitch: Modern Embroidery http://www.haydonartcenter.org Michael Forsberg Gallery -- Faces of Freedom: Visions of Hope for Child Laborers http://www.michaelforsberg.com Modern Arts Midwest -- Transformed Traditions in Ikat http://www.modernartsmidwest.com Modern Arts Midwest -- Michael James: Recent and New Work Anderson O’Brien Fine Art -- Tim Harding: High Craft Wearable + Textile Art on the Wall; Trunk Show http://www.aobfineart.com Bemis Center for Contemporary Art -- The Selvage Set http://www.bemiscenter.org Bemis Center for Contemporary Art -- Grassland: Mary Zicafoose/New Textiles & Prints Hot Shops Art Center -- Textiles, Glass, Clay, Wood and Metal: The Interface http://www.hotshopsartcenter.com Jun Kaneko Studio -- Permanent display http://www.junkaneko.com UNO Art Gallery, Weber Fine Arts Building -- Carved Board Clamp Resist Dyeing: Historical Perspective and Contemporary Application http://www.unomaha.edu/fineart/art/unoartgallery/welcome.htm UNO Art Gallery, Weber Fine Arts Building -- Sequenced Fibers: Books of Handmade Pape

    The NEBLINE, February 2000

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    Contents: Southeast Nebraska Area Producers – SNAP, a history and update 2000 Perennial Plant of the Year Basil Mulches Roosting birds making a mess? Dust mites EPA announces recall of AllerCare Drought entering 2000 growing season Sorghum seminar features marketing and production tips Computerized financial record keeping Selecting an alfalfa variety Y2K dust bowl has arrived The business plan Water softening skin and detergent Bait stations for rodent control Stretching food dollars through the holidays Healthy Eating: Winter Crisp Heart healthy adventures Focus on Food Family & Community Education (FCE): Clarice\u27s Column FCE News Raising boys to men Ways to beat the high cost of having fun Peer influences 4-H Bulletin Board 4-H Horse Bits 4-H Clubs in action... Character Counts! Corner: Caring & Kindness University of Nebraska-Lincoln’s Speakers Bureau can offer you a free speech

    Table of Contents, vol. 50, no. 3

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    Kreisarchiv Euskirchen, Unterhaltungsblatt und Anzeiger für den Kreis Schleiden und Umgegend (Amtliches Kreisblatt) vom 14. April 1915 Stellenanzeige der Eifeler Sprengstoffwerke in Hallschlag Männliche und weibliche             Arbeiter von den Eifeler Sprengstoffwerken in Hallschlag gegen guten Verdienst gesucht. Anmeldungen in der Fabrik Hallschlag und im Baubureau Stadtkyll erwünscht

    Integrated systems analysis reveals a molecular network underlying autism spectrum disorders.

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    Autism is a complex disease whose etiology remains elusive. We integrated previously and newly generated data and developed a systems framework involving the interactome, gene expression and genome sequencing to identify a protein interaction module with members strongly enriched for autism candidate genes. Sequencing of 25 patients confirmed the involvement of this module in autism, which was subsequently validated using an independent cohort of over 500 patients. Expression of this module was dichotomized with a ubiquitously expressed subcomponent and another subcomponent preferentially expressed in the corpus callosum, which was significantly affected by our identified mutations in the network center. RNA-sequencing of the corpus callosum from patients with autism exhibited extensive gene mis-expression in this module, and our immunochemical analysis showed that the human corpus callosum is predominantly populated by oligodendrocyte cells. Analysis of functional genomic data further revealed a significant involvement of this module in the development of oligodendrocyte cells in mouse brain. Our analysis delineates a natural network involved in autism, helps uncover novel candidate genes for this disease and improves our understanding of its molecular pathology

    Predicting Static Stability with Data-Driven Physics in Air Cargo Palletizing

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    Proposing air cargo palletizing solutions requires an assessment by a physics engine of whether a solution is physically stable, which can take up a disproportionate amount of computation and, thus, produce a bottleneck in the optimization pipeline. This problem can be tackled by replacing the physics engine with a data-driven model that learns to map proposed packing pattern solutions directly to its stability value. We develop a prototype of such a datadriven model and find that this approach yields practicable results and does so multiple orders of magnitudes faster than a commonly used physics engine

    Gesellschaftliche Militarisierung: Die Bundeswehr und ihr Einsatz im eigenen Hinterland

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    The article sketches an extended concept of militarization, which enables us to group together different activities of the German army (Bundeswehr) in the interior: Propaganda in public schools, image campaigns in conventional and internet media for kids, recruitment events in public employment offices and shows at job fairs, public military rituals, exercises for state of emergency and disaster operations, and the setup of institutional structures of so called civil-military co-operation. A short overview of military opposing organizations and their different practical experiences mirrors the range of the Bundeswehr's activities

    Seasonal patterns of carbon dioxide and water fluxes in three representative tundra ecosystems in northern Alaska

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    © The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Ecosphere 3, no 1 (2012): art4, doi:10.1890/ES11-00202.1.Understanding the carbon dioxide and water fluxes in the Arctic is essential for accurate assessment and prediction of the responses of these ecosystems to climate change. In the Arctic, there have been relatively few studies of net CO2, water, and energy exchange using micrometeorological methods due to the difficulty of performing these measurements in cold, remote regions. When these measurements are performed, they are usually collected only during the short summer growing season. We established eddy covariance flux towers in three representative Alaska tundra ecosystems (heath tundra, tussock tundra, and wet sedge tundra), and have collected CO2, water, and energy flux data continuously for over three years (September 2007–May 2011). In all ecosystems, peak CO2 uptake occurred during July, with accumulations of 51–95 g C/m2 during June–August. The timing of the switch from CO2 source to sink in the spring appears to be regulated by the number of growing degree days early in the season, indicating that warmer springs may promote increased net CO2 uptake. However, this increased uptake in the spring may be lost through warmer temperatures in the late growing season that promote respiration, if this respiration is not impeded by large amounts of precipitation or cooler temperatures. Net CO2 accumulation during the growing season was generally lost through respiration during the snow covered months of September–May, turning the ecosystems into net sources of CO2 over measurement period. The water balance from June to August at the three ecosystems was variable, with the most variability observed in the heath tundra, and the least in the tussock tundra. These findings underline the importance of collecting data over the full annual cycle and across multiple types of tundra ecosystems in order to come to a more complete understanding of CO2 and water fluxes in the Arctic.This research was funded by the National Science Foundation Office of Polar Programs (OPP 0632264), with a grant during the International Polar Year, ‘Collaborative Research on Carbon, Water, and Energy Balance of the Arctic Landscape at Flagship Observatories and in a PanArctic Network’. Trac

    The role of snow cover affecting boreal-arctic soil freeze–thaw and carbon dynamics

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    Northern Hemisphere permafrost affected land areas contain about twice as much carbon as the global atmosphere. This vast carbon pool is vulnerable to accelerated losses through mobilization and decomposition under projected global warming. Satellite data records spanning the past 3 decades indicate widespread reductions (~ 0.8–1.3 days decade−1) in the mean annual snow cover extent and frozen-season duration across the pan-Arctic domain, coincident with regional climate warming trends. How the soil carbon pool responds to these changes will have a large impact on regional and global climate. Here, we developed a coupled terrestrial carbon and hydrology model framework with a detailed 1-D soil heat transfer representation to investigate the sensitivity of soil organic carbon stocks and soil decomposition to climate warming and changes in snow cover conditions in the pan-Arctic region over the past 3 decades (1982–2010). Our results indicate widespread soil active layer deepening across the pan-Arctic, with a mean decadal trend of 6.6 ± 12.0 (SD) cm, corresponding to widespread warming. Warming promotes vegetation growth and soil heterotrophic respiration particularly within surface soil layers (≤ 0.2 m). The model simulations also show that seasonal snow cover has a large impact on soil temperatures, whereby increases in snow cover promote deeper (≥ 0.5 m) soil layer warming and soil respiration, while inhibiting soil decomposition from surface (≤ 0.2 m) soil layers, especially in colder climate zones (mean annual T ≤ −10 °C). Our results demonstrate the important control of snow cover on northern soil freeze–thaw and soil carbon decomposition processes and the necessity of considering both warming and a change in precipitation and snow cover regimes in characterizing permafrost soil carbon dynamics

    Long-term release of carbon dioxide from Arctic tundra ecosystems in Alaska

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    Author Posting. © The Author(s), 2016. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Ecosystems 20 (2017): 960–974, doi:10.1007/s10021-016-0085-9.Releases of the greenhouse gases carbon dioxide (CO2) and methane (CH4) from thawing permafrost are expected to be among the largest feedbacks to climate from arctic ecosystems. However, the current net carbon (C) balance of terrestrial arctic ecosystems is unknown. Recent studies suggest that these ecosystems are sources, sinks, or approximately in balance at present. This uncertainty arises because there are few long-term continuous measurements of arctic tundra CO2 fluxes over the full annual cycle. Here, we describe a pattern of CO2 loss based on the longest continuous record of direct measurements of CO2 fluxes in the Alaskan Arctic, from two representative tundra ecosystems, wet sedge and heath tundra. We also report on a shorter time series of continuous measurements from a third ecosystem, tussock tundra. The amount of CO2 loss from both heath and wet sedge ecosystems was related to the timing of freeze-up of the soil active layer in the fall. Wet sedge tundra lost the most CO2 during the anomalously warm autumn periods of September – December 2013 - 2015, with CH4 emissions contributing little to the overall C budget. Losses of C translated to approximately 4.1% and 1.4% of the total soil C stocks in active layer of the wet sedge and heath tundra, respectively, from 2008 – 2015. Increases in air temperature and soil temperatures at all depths may trigger a new trajectory of CO2 release, which will be a significant feedback to further warming if it is representative of larger areas of the Arctic.This work was funded by the National Science Foundation Division of Polar Programs Arctic Observatory Network grant numbers 856864, 1304271, 0632264, and 1107892. This study was also partially funded by the NSF Alaska Experimental Program to Stimulate Competitive Research award number OIA-1208927.2017-11-2
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