98 research outputs found
Pediatric Occupational Therapy Kits for Cuyahoga County Families
Pediatric occupational therapy kits were provided to families of children ages 3-5 served by Family Connections of Northeast Ohio. Kits were used to accessibly educate families on occupational therapy services. Each kit included a developmental milestone checklist, follow-up resources, and items to encourage cognition, social-emotional, and fine & gross motor skill development.https://engagedscholarship.csuohio.edu/ot_capstone_posters/1000/thumbnail.jp
Head & Neck Oncology: purpose, scope and goals-charting the future
For many years now there has been a growing frustration with the statistics of head and neck cancer. Despite the many advances in diagnosis and therapy, there has been little change in the prognosis for most cancers of the head and neck in the last 50 years, so what is the point of yet another journal? Well, it is not all bad news
Oral potentially malignant disorders: Risk of progression to malignancy
© 2017 Elsevier Inc. Oral potentially malignant disorders (OPMDs) have a statistically increased risk of progressing to cancer, but the risk varies according to a range of patient- or lesion-related factors. It is difficult to predict the risk of progression in any individual patient, and the clinician must make a judgment based on assessment of each case. The most commonly encountered OPMD is leukoplakia, but others, including lichen planus, oral submucous fibrosis, and erythroplakia, may also be seen. Factors associated with an increased risk of malignant transformation include sex; site and type of lesion; habits, such as smoking and alcohol consumption; and the presence of epithelial dysplasia on histologic examination. In this review, we attempt to identify important risk factors and present a simple algorithm that can be used as a guide for risk assessment at each stage of the clinical evaluation of a patient
Teledrumming (1922-1971)
Teledrumming (1922-1971) examines the cultural history of Francophone anticolonialism through the lens of media studies and critical theory. I argue that African drumming and women’s labor function as the “media” of anticolonialism in the French empire. My analysis centers on an object called the “tam-tam,” which refers to African drums as both musical instrument and communication technology. Since antiquity, people in West and Central Africa have used drums to “talk” across long distances, much like telephones. I use the term “teledrumming” to name this mediatic process instantiated by African drums. From the Haitian Revolution onwards, anticolonial groups have consistently used teledrumming to send out a “call” for revolution, beckoning colonial subjects to rise against their domination. Focusing on the twentieth century, this dissertation examines how both original and remediated forms of teledrumming structure anticolonialism.
Teledrumming, I argue, is entangled with women’s labor: the tam-tam’s call is inseparable from women’s song, performance, and invisible work. Chapter 1, “Racial Melancholia,” studies the works of André Gide, Marc Allégret, and Joséphine Baker. I argue that drumming and women’s performances melancholically resist the white French psyche, as in Baker’s 1935 film Princesse Tam-Tam. Chapter 2, “Fellow Drummers,” examines how Négritude men such as Aimé Césaire imitate tam-tam rhythms in their poetry (for example, in “Tam-Tam I”) to create an anticolonial consciousness. At the same time, Négritude women such as Suzanne Césaire invisibly labor to transcribe and publish the men’s poetry. “Tele” and “drumming” thus take starkly gendered, remediated forms for Négritude. Chapter 3, “Interpellation,” studies historical representations of anticolonialism in the works of Ousmane Sembène, Bernard Binlin Dadié, and Ferdinand Oyono. I argue that tam-tams and women’s song interpellate, or produce, anticolonial subjects in 1940s French West Africa. Chapter 4, “Percussive Echoes,” primarily considers the relationship between drumming and women’s ululating song in the Algerian Revolution (1954-1962), with a focus on the works of Frantz Fanon and Gillo Pontecorvo.
The central tasks of this dissertation, as such, are to valorize the tam-tam as a sophisticated African technology and to recover the subjectivity of women who have been relegated to techne
Spectral Modelling of Coastal Waves over Spatial Inhomogeneity
Spectral wave models are widely used for wave prediction over large spatio-temporal scales. Over global scales, spectral models (e.g. WAM and WAVEWATCH III) are used regularly by environmental modelling centers, such as the European Centre for Medium-Range Weather Forecasts (ECMWF) and the American National Center for Environmental Prediction (NCEP), in order to support human activity at sea. Along the coasts, practitioners rely on spectral models which are designated to the coastal environment (e.g. SWAN and TOMAWAC) for applications such as coastal hazard assessment, future coastal development, planning of defense strategies for coastal safety, evacuation planning of coastal communities and so forth.An important property that characterizes the spectral approach and enables its applicability for large scales is efficiency. This property is achieved owing to the simple wave description that underlies its formulation. Specifically, the spectral approach represents ocean wave fields as quasi-Gaussian, quasi-homogeneous and quasi-stationary processes. These convenient statistical properties provide a full statistical description of wave fields based on the energy spectrum alone, and therefore, allow to describe the waves in the ocean in a complete statistical sense through the solution of a single transformation equation - the energy balance equation.The validity of this statistical modelling framework is based on the weak (in the mean) wave forcing and the dispersion effects. These two agents provide reasonable justifications that the deviation from the assumed statistical properties (i.e. Gaussianity, homogeneity and stationarity) is kept negligible in the course of wave evolution. While these arguments are reasonable in the open ocean (where dispersive effects are strong and wave processes are characterized by large scales), they become somewhat loose for the coastal environment (where wave dispersion weakens and wave processes develop rapidly). Evidently, processes like medium-induced wave interferences and energy exchanges due to shallow water nonlinearity are not properly represented under this statistical framework.This study is set forward with the aim of advancing the spectral modelling capabilities in coastal waters by allowing the development of inhomogeneous and non-Gaussian statistics. To this end, the effort of this work is directed to three different parts, concerning three principle issues. The first part considers the formal connection between the classical deterministic formulation (e.g. the Euler equations) and the statistical formulation given by the so-called Wigner-Weyl formulation (a statistical framework that includes the information of wave interferences and reduces to the energy balance equation when interference effects are negligible). The second parts aims to generalize the Wigner-Weyl formulation (which presently accounts for wave-bottom interactions) to allow for the interaction of waves and ambient currents. Finally, the third part is devoted to the investigation of the quadratic modelling approach which defines the starting point for the present phase-averaged formulation of shallow water nonlinearity.The objective of the first part of this study is achieved by showing the equivalence between a formal definition of the Dirichlet-to-Neumann operator of waves over variable bathymetry and the Weyl operator of the dispersion relation. This equivalence opens the door to a formal use of Weyl calculus, based on which the Wigner-Weyl formulation is formally derived. This result establishes the desired formal link between the deterministic formulation for water waves and the statistical formulation given by the Wigner-Weyl formulation, which includes the energy balance equation as a statistically well-defined limiting case. In the second part of this study, the Wigner-Weyl formulation for water waves is extended to account for wave-current interactions. The outcome is a generalized action balance model that is able to predict the evolution of the wave statistics over variable media, while preserving statistical contributions due to wave interferences. Comparisons with results of the SWAN model and the REF/DIF 1 model through several examples verify model performance and demonstrate that retention of interference contributions is essential for accurate prediction of wave statistics in shear-current-induced focal zones. Finally, the third part of this study explores the predictive capabilities of the quadratic approach. This is performed by analyzing the nonlinear properties of six different quadratic formulations, three of which are of the Boussinesq type and the other three are referred to as fully dispersive formulations. It is found that while the Boussinesq formulations predict reliably the nonlinear development of coastal waves, the predictions by the fully dispersive formulations tend to be affected by false developments of modulational instability. As a result, the predicted fields by the fully dispersive formulations are characterized by unexpectedly strong modulations of the sea-swell part and associated unexpected infragravity response. Additionally, this part of the study also presents an attempt to push the limits of the predictive capabilities of the quadratic approach. The outcome is the model QuadWave1D: a fully dispersive quadratic model for coastal wave prediction in one dimension. Based on a wide set of examples (including monochromatic, bichromatic and irregular wave conditions), it is found that the new formulation presents superior forecasting capabilities of both the sea-swell components and the infragravity field.In summary, the overall effort of this study provides an additional step toward the broader goal of efficient and accurate spectral modelling capabilities of coastal waves. This step includes strengthening the theoretical foundations of the spectral approach, improving the spectral description of wave transformation over spatial inhomogeneity and helping to minimize the errors associated with the spectral formulation of shallow water nonlinearity. Ultimately, this study also points on and prepares the background to additional required model developments.Environmental Fluid Mechanic
Hydroelasticity and nonlinearity in the interaction between water waves and an elastic wall
The present study investigates the role of hydroelasticity and nonlinearity in the fundamental problem of the interaction between non-breaking water waves and an elastic wall. To this end, two interaction scenarios are considered: the interaction of a rigid wall supported by springs and a pulse-type wave, and the interaction of an elastic deformable wall and an incident wave group. Both of these scenarios are numerically simulated in a computational domain representing a two-dimensional wave flume. The simplicity of the domain enables one to perform highly efficient simulations using the high-order spectral method (HOSM). Wave generation at the flume entrance and the wave–wall interaction at the flume end are simulated by means of the additional potential concept. In this way, the efficiency that characterizes the original HOSM is preserved for the present non-periodic problems. The investigation of the first scenario reveals the influence of the wall’s dynamical response on the hydrodynamic values. The results show that the maximum wave run-up and wave force are prominently fluctuating around the values corresponding to a fixed wall as a function of the wall’s eigenfrequency, revealing regions of relaxation and amplification. The second scenario studies the effect of the nonlinear evolution of the incident wave group. The high-order wave harmonics generated during the group evolution are found to be significant for predicting extreme hydrodynamic and structural values, and may result in resonant interactions in which hydroelasticity appears to play an important role.</jats:p
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