794 research outputs found

    Nervous Conditions

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    Dimensions: 30 inches wide, 36 inches tallInkjet on matte paper, printed on both sidesWork displayed here as a diptych Artist\u27s narrative: Letter 174 is addressed to Paul Laurence Dunbar sent from his dear family friend H.A. Tobey. Toward the end of his life, Dunbar struggled to cope with his tuberculosis and turned to alcohol to ease his pain. As his condition worsened, Tobey began to worry about him and wrote him this moving letter of optimism expressing his sympathy regarding Paul living with a painful and deadly disease. The mirroring is showing the side effects of the disease and complications it causes to the spine and nervous system. Having the visual spread outward all throughout the page and enclosing the type further conveys how tuberculosis was taking over his body. Watercolor combined with digital illustrations created an overall feeling of being nervous and desolate — similar to the emotions of Dunbar in 1902 battling tuberculosis. The poster sheds light on the physical and mental struggles Dunbar faced in his medical condition. It shows the undeniable past experiences that have led up to this feeling of distress. The time period in which Dunbar lived and the tone of the letter’s message influenced the type palette choices of an old face and humanistic lineale. Dupincel (oldface) was designed by Rodrigo Saiani; Laca (humanistic lineal) was designed by Joana Correia.https://ecommons.udayton.edu/stu_vad_dunbarletters/1011/thumbnail.jp

    Bedding control on landslides: A methodological approach for computer-aided mapping analysis

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    Litho-structural control on the spatial and temporal evolution of landslides is one of the major typical aspects on slopes constituted of structurally complex sequences. Mainly focused on instabilities of the earth flow type, a semi-quantitative analysis has been developed with the purpose of identifying and characterizing litho-structural control exerted by bedding on slopes and its effects on landsliding. In quantitative terms, a technique for azimuth data interpolation, Non-continuous Azimuth Distribution Methodological Approach (NADIA), is presented by means of a GIS software application. In addition, processed by NADIA, two indexes have been determined: (i) Δ, aimed at defining the relationship between the orientation of geological bedding planes and slope aspect, and (ii) C, which recognizes localized slope sectors in which the stony component of structurally complex formations is abundant and therefore operates an evolutive control of landslide masses. Furthermore, some Litho-Structural Models (LSMs) of slopes are proposed aiming at characterizing recurrent forms of structural control in the source, channel and deposition areas of gravitational movements. In order to elaborate evolutive models controlling landslide scenarios, LSMs were qualitatively related and compared with Δ and C; quantitative indexes. The methodological procedure has been applied to a lithostructurally complex area of Southern Italy where data about azimuth measurements and landslide mapping were known. It was found that the proposed methodology enables the recognition of typical control conditions on landslides in relation to the LSMs. Different control patterns on landslide shape and on style and distribution of the activity resulted for each LSM. This provides the possibility for first-order identification to be made of the spatial evolution of landslide bodies. © Author(s) 2011

    Categorization and experimental evaluation of anchorage systems for fiber-reinforced polymer laminates bonded to reinforced concrete structures

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    While externally-bonded fiber-reinforced polymer (FRP) composites are commonly used for the strengthening of structurally deficient reinforced concrete (RC) members, the topic of anchoring FRP to concrete to achieve higher design strengths has not been addressed. Many innovative systems have been developed to anchor FRP to concrete, but the research involving these anchorage systems is not centralized and is therefore difficult to access. Additionally, systematic testing procedures for evaluating the strength of an anchorage system have not been widely used. To aid in the organization of anchorage system research and facilitate a better understanding of anchorage system behavior, a categorization system was developed based on the understood behavior of the FRP anchorage systems, as well as their potential applications. This new categorization system was used to discuss the applicability of anchorage testing procedures to various types of anchorage. Experimental research involving anchorage systems used for the emergency repair of severely damaged bridge columns was also performed. The anchorage systems included a novel anchorage system that was the focus of the experimental portion of this research. Results from the experimental program show that while the novel anchorage has promise for use in FRP strengthening applications, the assumed behavior of the novel anchorage was inconsistent with the observed behavior. Because detailed design procedures could not be developed using the experimental data, future testing of this anchorage system should be performed in the absence of the large number of variables that affected the anchorage\u27s performance during the column tests --Abstract, page iii

    Mothers' conversational patterns: a comparison between typically developing children and young children with autism spectrum disorders

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    Title from PDF of title page (University of Missouri--Columbia, viewed on September 9, 2013).The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; and a non-technical general description, or public abstract, appears in the public.pdf fileThesis advisor: Dr. Judith GoodmanIncludes bibliographical references.M.H.S. University of Missouri-Columbia 2013.Dissertations, Academic -- University of Missouri--Columbia -- communication science & disorders."May 2013"Autism Spectrum Disorders (ASD) are a group of developmental disabilities that cause mild to severe deficits in language, verbal and nonverbal communication, and social skills (Individuals With Disabilities Education Act, 2004). Given the social nature of conversation and the deficits in social skills seen in ASD, one might expect the development of conversation to be more delayed than other language deficits. Previous research on typically developing children has shown that differences in maternal utterances and conversational structure alter the nature of interactions in ways that appear to affect children's acquisition of language. The present study investigates the maternal pragmatic and conversational input to children with ASD, particularly the types of utterances (i.e., questions and commands) and the conversational structure produced. The children's responses to the mothers' questions and commands were also examined. Mothers of children with ASD produced significantly more commands than mothers of typically developing children matched by age or language level. The structure of mothers' conversational input also varied by group: mothers of children with ASD produced significantly more topic continuations than mothers of age-matched children. The results contribute to our knowledge of maternal language input to children with ASD

    A hybrid model for mapping simplified seismic response via a GIS-metamodel approach

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    In earthquake-prone areas, site seismic response due to lithostratigraphic sequence plays a key role in seismic hazard assessment. A hybrid model, consisting of GIS and metamodel (model of model) procedures, was introduced aimed at estimating the 1-D spatial seismic site response in accordance with spatial variability of sediment parameters. Inputs and outputs are provided and processed by means of an appropriate GIS model, named GIS Cubic Model (GCM). This consists of a block-layered parametric structure aimed at resolving a predicted metamodel by means of pixel to pixel vertical computing. The metamodel, opportunely calibrated, is able to emulate the classic shape of the spectral acceleration response in relation to the main physical parameters that characterize the spectrum itself. Therefore, via the GCM structure and the metamodel, the hybrid model provides maps of normalized acceleration response spectra. The hybrid model was applied and tested on the built-up area of the San Giorgio del Sannio village, located in a high-risk seismic zone of southern Italy. Efficiency tests showed a good correspondence between the spectral values resulting from the proposed approach and the 1-D physical computational models. Supported by lithology and geophysical data and corresponding accurate interpretation regarding modelling, the hybrid model can be an efficient tool in assessing urban planning seismic hazard/risk. © Author(s) 2014

    Seismic refraction methodology for groundwater level determination: "Water seismic index"

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    Recently, there has been increased interest in the use of refraction seismic data for the exploration and development of hydrological reservoirs. The aim of this study is to provide a procedure in order to identify groundwater levels by means of seismic refraction profiles. Assuming that the velocity of shear waves increases much less than the velocity of compressional waves in a saturated soil, seismic refraction surveys were performed for the determination of the water table. In order to have a perfect overlay of the tomography 2D grids, P and S wave seismic profiles were obtained with the same geometrical configuration. Based on the propagation of the P and S waves in the unsaturated and saturated media, a "Water Seismic Index" (WSI) was defined. WSI is related to the local variations of the P and S wave velocities and, in theoretical terms, it is correlated to groundwater level. Preliminary results indicate that there is a good agreement between the depth of the ground water and the WSI parameter. © 2009 Elsevier B.V. All rights reserved

    SiSeRHMap v1.0: A simulator for mapped seismic response using a hybrid model

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    SiSeRHMap is a computerized methodology capable of drawing up prediction maps of seismic response. It was realized on the basis of a hybrid model which combines different approaches and models in a new and non-conventional way. These approaches 5 and models are organized in a code-architecture composed of five interdependent modules. A GIS (Geographic Information System) Cubic Model (GCM), which is a layered computational structure based on the concept of lithodynamic units and zones, aims at reproducing a parameterized layered subsoil model. A metamodeling process confers a hybrid nature to the methodology. In this process, the one-dimensional linear 10 equivalent analysis produces acceleration response spectra of shear wave velocitythickness profiles, defined as trainers, which are randomly selected in each zone. Subsequently, a numerical adaptive simulation model (Spectra) is optimized on the above trainer acceleration response spectra by means of a dedicated Evolutionary Algorithm (EA) and the Levenberg–Marquardt Algorithm (LMA) as the final optimizer. In the fi15 nal step, the GCM Maps Executor module produces a serial map-set of a stratigraphic seismic response at different periods, grid-solving the calibrated Spectra model. In addition, the spectra topographic amplification is also computed by means of a numerical prediction model. This latter is built to match the results of the numerical simulations related to isolate reliefs using GIS topographic attributes. In this way, different sets 20 of seismic response maps are developed, on which, also maps of seismic design response spectra are defined by means of an enveloping technique
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