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    2199 research outputs found

    Large woody debris (LWD) as biomimetic inspiration for Lake Erie coastal infrastructure

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    The Ohio Lake Erie shoreline is 75% hardened with rock, steel and concrete and is the most modified shoreline of all the Great Lakes. While shoreline armoring effectively reduces erosion from wave action for coastal properties, this modification disrupts the land-water interface and diversity of nearshore habitat. Historically, natural LWD input from frequent, small-scale windthrows provided structural complexity in habitat and positively affected local hydrodynamic conditions in streams, rivers and lakes, among other ecological benefits. For this reason, large woody debris (LWD) is often used as a natural element for both stream stabilization and habitat creation in stream restoration projects. This project uses the biomimicry process to understand local context and mimic the LWD form of a rootwad for potential use as a structural element in freshwater coastal stabilization and restoration projects. Rootwad structures are 3D printed in ABS and PLA and tested in a recirculating wave flume simulating wave conditions on Lake Erie. Wave attenuation and downstream velocity reduction along the centerline are measured as well as downstream sediment deposition regions roughly characterized. The hope is to assist in the development of a resilient Lake Erie shoreline transformed by modification through coupled natural-built coastal protection structures using the biomimicry process

    2019 Ohio Wine Competition Official Results

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    https://kent-islandora.s3.us-east-2.amazonaws.com/owc/16/thumbnail.jpgHeld on May 14-15, 2019 at the Lodge at Geneva-on-the-Lake and sponsored by the Ohio Grape Industries Committee, the competition received a total 288 entries with 218 receiving medals. Official results include a complete list of awarded wines, both by category and medals. Best of Show/Best of Ohio Awards Overall Best of Show/Best of Ohio: Ferrante Winery, Gewurztraminer, 2017, Grand River Valley White Wine: Ferrante Winery, Signature Series Riesling, 2017, Grand River Valley Red Wine: Laurentia Vineyard and Winery, Estate Cabernet Sauvignon Stoltz Block, 2016, Grand River Valley Blush/Rosé: Heineman Winery, Pink Catawba, Non‐vintage, Lake Erie Fruit/Specialty Wine: Vinoklet, "Sweet Jackie", Blackberry, Non-Vintage, American Dessert: Vinoklet Winery, “Passion”, Blueberry, Non‐vintage, American Ice Wine: Gervasi Vineyard, “Sognata”, Vidal Blanc Ice Wine, Non‐vintage, American</p

    Journal of SPORT Volume 7 Issue 1 2019

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    /sites/default/files/journals/4/articles/201/submission/thumbnail.jp

    Canto 2019

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    https://kent-islandora.s3.us-east-2.amazonaws.com/node/18349/88373-thumbnail.jpgSpring Editor-in-Chief: Jonathan Brooke Fall Editor-in-Chief: John C. Polles Fiction Editor: CaeLynn Nussbaum Nonfiction Editor: Jimmy Schindewolf Poetry Editor: Kelsey Casenhiser Layout Editor: Emily Vossen</p

    Addressing Bisexuality, Gender Non Conformance and Performativity through The Color Purple by Alice Walker

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    /sites/default/files/journals/2/articles/60/submission/thumbnail.jpgThe purpose this presentation is to elaborate on the knowledge of bisexual relationships that occurred in the early 1900’s regardless of the sexual and racial oppression of the time period. I believe that through art and through literature we are able to experience and view through a greater lens, the human experience . The Color Purple by Alice Walker (Adapted for stage by Marsha Norman) walks us through the relationships our main character Celie , is involved in and evolves through . As an audience see many different factors as to how her trauma and/or life has affected her attraction and affection towards certain relationships but most importantly the relationship she has with herself.</p

    Brainchild 2019

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    https://kent-islandora.s3.us-east-2.amazonaws.com/node/10415/Pages%20from%20Brainchild2019.jp

    What are the effects of nutrient addition and competition on the growth of <i>Juniperus virginiana</i>?

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    The eastern redcedar Juniperus virginiana is the most widespread conifer in the eastern United States. J. virginiana is a range-expanding (encroaching) species that is native to the United States. This species contributes to the decline of grassland biodiversity because it competes with native species for nutrients, resources and changes the landscape of the areas where it encroaches. In Ohio, J. virginiana is particularly abundant on limestone-derived substrates, either because this species prefers to grow on limestone or due to the absence of competition with other species. We are interested in investigating the factors that are most important in facilitating the encroachment of J. virginiana into new areas. We tested the effects of nutrient content, high pH, and interspecific competition with a common invasive grass (Bromus inermis) and a native tree (Quercus stellata) on the growth and survival of J. virginiana seedlings. We recorded J. virginiana and Q. stellata height and trunk diameter weekly as an estimate of seedling quality and performance. We found that J. virginiana seedlings competing with the invasive grass B. inermis grew more slowly than J. virginiana growing without B. inermis or J. virginiana seedlings with the post oak Q. stellata. In addition, there was a negative effect of limestone addition on J. virginiana growth rate. Our results suggest that J. virginiana does not prefer high pH soil, but rather it thrives in these soils to minimize competition. Future efforts will determine if competition is the main factor affecting the encroachment of J. virginiana into new habitats and areas, which in turn will assist efforts to control woody encroachment into grasslands.</p

    The Changing Frequency of Spatiotemporally-Relative Weather Types across North America

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    Most climate change research is focused on the trends in different metrics (means, maximums, minimums, extremes, etc.) of temperature and/or precipitation. Beyond this, however, trends in other variables have been noted, including absolute moisture metrics, relative humidity, sea-level pressure and many other atmospheric variables and phenomena. This multivariate nature of the weather at any given location naturally underlies the concept of an air mass or weather type – a category of weather that defines the holistic atmospheric situation at a particular time. Thus, since temperature and precipitation trends over the last few decades are well-researched, but a changing climate can manifest itself in myriad ways, the simple aim of this research is to examine the changes in GWTC weather type (WT) frequency over North America since 1979. Generally, warm WTs (Humid Warm, Warm, Dry Warm) are increasing in frequency at the expense of the cool WTs (Humid Cool, Cool, Dry Cool), and the effects of Arctic Amplification are apparent. Humid Cool weather is significantly increasing in northwestern North America and transitional (frontal) weather types are increasing in the US and decreasing in Canada. The magnitude of changes is greater than we expected (+/- 30 to 40 days in some regions). We postulate that noting the extreme magnitude of the WT frequency changes found herein might be a more efficacious means (than explaining importance of a 2-3°C change) of communicating longer-term climate change trends to policymakers and the general public

    The FoSTER (Forest Soils and Trees Ecosystem Restoration) Project: Reforesting Cuyahoga Valley National Park and setting the stage for long-term ecological study

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    The FoSTER (Forest Soils and Trees Ecosystem Restoration) Project is a collaborative effort between Cuyahoga Valley National Park (CVNP) staff and Kent State University faculty to reforest disturbed habitats inside the park. These disturbed sites consist of five former surface mines, which have previously undergone reclamation with unsatisfactory results. The sites have fallen victim to exotic plant invasion and have made minimal progress returning to their naturally forested state, even after 35 years in some cases. To accelerate afforestation, the deep ripping method is being used. Deep ripping involves tearing 1.2m deep grooves into the soil in a checkerboard pattern, which helps to alleviate soil compaction, accelerate soil weathering, and allow tree root penetration. Large-scale tree planting events follow deep ripping. To date, this has been done with the aid of hundreds of citizen volunteers. Trees are planted in a plot-based design, allowing for long-term study of the response of soil properties, tree species, and mycorrhizal fungi type to deep ripping. Surveys conducted in fall of 2018 show 84% survivorship of the nearly 1,500 trees planted between fall of 2017 and spring of 2018. In addition to reforestation, the FoSTER Project aims to educate managers on best management practices for deep ripping, increase public interest in environmental issues faced by CVNP, and promote participation in citizen science

    Metal Speciation and Transport in a Stream Impacted by Coal Mine Drainage

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    Acid mine drainage (AMD) is acidic, metal-rich water produced from the oxidative dissolution of sulfide minerals exposed to air and water during mining. AMD can continue to contaminate water resources years after mining ends, damaging affected ecosystems and requiring costly reclamation. AMD-derived metals can be transported through water as dissolved ions, nanoparticles, and larger suspended particles. Although these species differ in toxicity and mobility, most AMD studies either do not include or do not differentiate between certain phases. The objectives of this study were to examine metal speciation and transform in an AMD-contaminated stream and determine the unique concentration-discharge behaviors (C-Q) of different metal species. Here, we examined metal speciation along the length of a stream that mixed with AMD contaminated groundwater and treated, alkaline water from an AMD-treatment system. Dissolved and nanoparticulate Fe concentrations spiked where AMD-contaminated groundwater upwelled into the stream, but decreased downstream as nanoparticulate aggregates of Fe-oxides and other Fe-containing minerals settled out of the water column. Streambed sediments contained high concentrations of Fe-oxides, pyrite, and Fe-sulfates. At the watershed outlet, nanoparticulate Fe concentrations decreased relative to dissolved Fe at times of higher discharge, indicating unique C-Q behaviors depending on metal speciation. Our results indicate that geochemical processes, such Fe-oxide precipitation, along the stream help sequester most contaminant Fe in the watershed. This work will help address a knowledge gap regarding the understanding of metal transport though streams and has implications for policy regarding the effectiveness of AMD treatment systems

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