2,156 research outputs found

    A Quick Guide To Eating Healthy with Type II Diabetes

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    Diabetes is becoming increasingly more prevalent in the U.S. and in the state of Vermont. With an increased prevalence of diabetes and a worsening obesity crisis, the total cost of diabetes management is increasing as well. The population around Bellows Falls, VT has not been spared from this epidemic. Many patients in this region have struggled to make and maintain lifestyle changes, particularly surrounding diet and exercise. Therefore, a one-page, double-sided handout was created to provide easily digestible information to patients about managing their diabetes through proper nutrition.https://scholarworks.uvm.edu/fmclerk/1515/thumbnail.jp

    Open Space Acquisitions and Management Opportunities in the City of Atlanta and Adjacent Jurisdictions

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    The great cities of the world are distinguished by their public parks. The urban fabric of New York, Barcelona, Berlin, Moscow, Paris, Rome, Sydney, and Shanghai are all woven around great parks. Yet, with all of Atlanta's outstanding achievements, the City and the region have a notably undistinguished park system. In a study conducted by the Trust for Public Land and the Urban Land Institute, Atlanta ranks near the bottom of the nation's largest 25 cities in acreage of parkland per capita with 7.3 acres for every 1,000 residents. Compare that to Austin, Texas' 39 acres per 1,000 residents or Oklahoma City's 43 acres per 1,000 residents and it becomes clear that something is amiss in metro Atlanta.This study identifies the obstacles to acquiring and maintaining open and green spaces in the metro Atlanta region. Addressing open space shortages in metro Atlanta is a sizable task. This study could be considered the first step in a larger process. Time spent researching the various obstacles and opportunities regarding open space acquisition raised many questions that are beyond the scope of this project. A second phase might test the recommendations made in this phase by working with local officials on a few select projects, and begin to identify critical pieces of property in metro Atlanta that must be protected from development. A detailed inventory of significant open space and natural resources in the metro area that includes the existing inventory of land inside of Interstate 285 should be considered either as a separate study or included in this recommended second phase

    Dynamic Recrystallization and Grain Size Effects on Catastrophic Motion of the Earth’s Mantle during the Flood: Advancement of Material Models

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    This presentation reports a numerical study to investigate the mechanical effects of dynamic recrystallization (DRX) and the grain size on the speed of flow of rock inside the earth’s solid mantle during the Genesis Flood. The strength, or viscosity, of its constituent minerals is key to understanding and modeling the dynamics of the mantle correctly. A mineral’s strength is strongly influenced by the crystal size, its lattice defects (vacancies and dislocations), and other microscale and crystal-scale phenomena. Since the viscosity difference of the earth’s deep mantle between the present day and during the Flood cataclysm is approximately 10 orders of magnitude, serious study is needed to understand the physically plausible subscale mechanisms that facilitated such a drastic strength reduction of the mantle. The dominant deformation mechanisms would be largely different in the days of the Flood relative to the present day. The present-day earth mantle’s strain rate is estimated to be about 10-15 s-1 based on geophysical observations such as isostatic rebound (Brennen, 1974). By contrast, the strain rate during the Flood was on the order of 10-5 s-1 based on the earlier Catastrophic Plate Tectonics (CPT) calculations (Baumgardner, 1994; Cho et al., 2018). At this strain rate range during the Flood, typical of most deformation experiments today, we know that the deformation is strongly controlled by grain size and DRX (Bystricky et al., 2000). Hence, it is logically important how these microstructural structures and mechanisms played a significant role in the strength reduction of the mantle during the Flood. For this work, we have performed a set of whole mantle numerical simulations that include an advanced material model (for determining the viscosity). In this study, we particularly focus on the weakening effect of an inelastic mechanism involved with dislocations and DRX that occurs due to stored plastic deformation energy (Cho et al., 2019). For realism we include representative minerals for each portion of the mantle: olivine for the upper mantle, spinel for the mantle transition zone, and bridgmanite-ferropericlase for the lower mantle. Upon crossing these zones (phase boundaries), the grain size , DRX, and other microstructural variables change as in the actual mantle. The results show that, under thermomechanical conditions that we expect during the Flood, the mantle deforms in a transient regime, with its viscosity reduced significantly compared to the present day. In particular, DRX weakens the mantle rock to enable the runaway process even more relative to the case without it (Baumgardner, 1994). This weakening by the DRX is particularly intense near the sinking slabs where the material is strongly deformed. The runaway mechanical instability enabled by this DRX-aided weakening produces a rapid overturn of the entire mantle. Due to these microstructural rearrangements, the rock strength (viscosity) is reduced by orders of magnitude, such that the mantle as a whole deforms in a catastrophic manner

    Complex Antiferromagnetic Order in the Metallic Triangular Lattice Compound SmAuAl4_4Ge2_2

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    The compounds LnLnAuAl4_4Ge2_2 (LnLn == lanthanide) form in a structure that features two-dimensional triangular lattices of LnLn ions that are stacked along the crystalline cc axis. Together with crystal electric field effects, magnetic anisotropy, and electron-mediated spin exchange interactions, this sets the stage for the emergence of strongly correlated spin and electron phenomena. Here we investigate SmAuAl4_4Ge2_2, which exhibits weak paramagnetism that strongly deviates from conventional Curie-Weiss behavior. Complex antiferromagnetic ordering emerges at TN1T_{\rm{N1}} == 13.2 K and TN2T_{\rm{N2}} == 7.4 K, where heat capacity measurements show that these transitions are first and second order, respectively. These measurements also reveal that the Sommerfeld coefficient is not enhanced compared to the nonmagnetic analog YAuAl4_4Ge2_2, consistent with the charge carrier quasiparticles exhibiting typical Fermi liquid behavior. The temperature-dependent electrical resistivity follows standard metallic behavior, but linear magnetoresistance unexpectedly appears within the ordered state. We compare these results to other LnLnAuAl4_4Ge2_2 materials, which have already been established as localized ff-electron magnets that are hosts for interesting magnetic and electronic phases. From this, SmAuAl4_4Ge2_2 emerges as a complex quantum spin metal, inviting further investigations into its properties and the broader family of related materials.Comment: 9 pages, 6 figure
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