180 research outputs found

    Breathless Sleep

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    Tracking Polar Mesospheric Clouds Using Unbinned Correlation Methods

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    We are experimenting with a correlation method that allows us to cross-correlate images that have geolocated pixels without having to bin the pixels and lose resolution. In addition to preserving resolution, this correlation method also allows us to perform transformations on the images that would be difficult to perform with other correlation methods. We are working on this correlation method in order to use cross-correlations to track polar mesospheric clouds (PMCs) using the data from the Cloud Imaging and Particle Size (CIPS) instrument on the Aeronomy of Ice in the Mesosphere (AIM) satellite

    Propuesta para proyecto de conservación de murales de Eligio Pichardo en la República Dominicana

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    En este artículo las autoras presentan el trabajo en progreso de las diferentes etapas del Proyecto de Conservación de los 23 murales realizados en 1952 por el artista dominicano Eligio Pichardo en la Escuela Primaria República del Uruguay, en Santo Domingo, República Dominicana. El presente trabajo comprende desde su diseño y gestión por Abreu en el 2004, hasta la realización de la etapa de planificación por Abreu y Domínguez en el 2008, asistidas por Ruahidy Lombert, incluyendo: evaluación del edificio, examen de condición de los murales, propuesta de tratamiento, y plan de trabajo. Para hacer este proyecto viable, las autoras proponen un método de trabajo por etapas, realizando primero un proyecto piloto, en el que se restaure un mural representativo de los problemas de los demás, para poder estimar con mayor precisión el resto del trabajo. Los murales restantes serían tratados en etapas subsiguientes, agrupados según criterios de condición y ubicación, desarrollando un trabajo secuencial y eficaz. El proyecto propone incluir un componente educativo para capacitar personal local, que cubrirá además una necesidad de entrenamiento en la República Dominicana.Tópico 2: Conservación y restauración de pinturas, cueros, textiles y metales

    Pursuing the Ephemeral, Painting the Enduring: Alzheimer\u27s and the Artwork of William Utermohlen

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    This book is published in conjunction with the exhibition Pursuing the Ephemeral, Painting the Enduring: Alzheimer’s and the Artwork of William Utermohlen, Exhibition and Scholarly Reflections presented at Illinois Wesleyan University Wakeley Gallery November 6 to December 11, 2015. The exhibition and catalogue are partially funded by a grant from the Andrew W. Mellon Foundation. William Utermohlen’s work is represented by Chris Boïcos Fine Arts, Paris and Jennifer Norback Fine Arts, Chicago.https://digitalcommons.iwu.edu/utermohlen/1000/thumbnail.jp

    CRP and IGA Levels in Wasting Children Under Five Based on Zinc and Retinol Level

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    The effect of zinc deficiency may have play role on immune response that takes place during the critical growth period. Disorder of immune system may lead to the increased risk of infectious diseases.Immunoglobulin A (IgA) has a function as the first time barrier againts microorganisms and cell proliferation within immune system, which also highly influenzed by zinc. In children with malnutrition, including zinc, disorder, the production of secretory Ig A within their digestive system is also disturbed. The objective of this study was to analyze the difference of CRP and IgA levels on normal zinc levels and low zinc levels in wasted children underfives in Peneleh Puclic Health Center Surabaya City. Crossectional comparative design was done in 28 wasting children. Underfive children were randomized to observed CRP and IgA level. At the end of the study there were no significant differences in serum CRP level (p > 0.05)between children with low serum zinc levels and normal zinc levels (P=1.000). Children with higher serum zinc levels had higher blood levels of IgA (p=0.005). There were significant differences in IgA level (p =0,001) between children with normal zinc level and low zinc level. The result suggested that normal zinc levels may play role to perform antibody (IgA) for wasted underfive children to protect infection diseases than low zinc levels in wasted children under five

    Fundamental Spin Interactions Underlying the Magnetic Anisotropy in the Kitaev Ferromagnet CrI3_3

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    We lay the foundation for determining the microscopic spin interactions in the two-dimensional (2D) ferromagnets by combining our angle-dependent ferromagnetic resonance (FMR) experiments on high quality CrI3_3 single crystals with theoretical modeling based on symmetries. In the 2D limit, ferromagnetism is stabilized by magnetic anisotropy. We find the largest anisotropy arises from Kitaev interactions of strength K 5.2K~\sim-5.2 meV, larger than the Heisenberg exchange J 0.2J~\sim-0.2 meV. We further discover that the symmetric off-diagonal anisotropy Γ67.5\Gamma\sim-67.5 μ\mueV, though small, plays the crucial role of opening a gap in the magnon spectrum and stabilizing ferromagnetism in the 2D limit. The resolution of the FMR data is sufficient to reveal a μ\mueV-scale quadrupolar contribution in the S=3/2S=3/2 magnet. Our identification of the interactions underlying ferromagnetism and exchange anisotropies opens paths towards 2D ferromagnets with higher T_\rm{C} and magnetically frustrated quantum spin liquids based on Kitaev physics.Comment: 5 pages, 4 figure
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