Embedding Self-Regulation Strategy Instruction Into The Genre-Based Writing Curriculum

The research question addressed by this project is: how can teachers embed self-regulation strategies into their writing curriculum for students who struggle to write independently? This project documents the author’s attempt at merging genre-based pedagogy borrowed from Systemic Functional Linguistics with Rebeca Oxford’s Strategic Self-Regulation (S2R) model of learning. The resulting instructional unit, developed with the guidance of Wiggin’s and McTighe’s Understanding by Design framework, teaches secondary students how to write in the genre of persuasion. Additionally, it systematically engages students with opportunities to practice cognitive, affective, and sociocultural-interactive strategies that researchers have found to be characteristic behaviors of effective language learners. The unit includes a unit overview with identified learning goals, a description of formative and summative assessments to be used as evidence of student learning, and a learning plan. It also includes detailed lesson plans for five lessons indented to be spread over a period of 22 days, and a summative assessment

Sonochemical reactions: mass transfer and kinetic studies of a solid-liquid system

Ultrasound has been shown to have desirable effects on both homogeneous and heterogeneous reactions, such as increasing the conversion, enhancing the selectivity, and improving the yield. Enhancements due to ultrasound may be attributed to chemical effects or mechanical effects, or to both simultaneously. The chemical effects of ultrasound are attributed to the implosion of microbubbles, generating free-radicals with a great propensity for reaction. Mechanical effects are caused by shock waves formed during symmetric cavitation, or by microjets formed when the bubble implodes asymmetrically. Research emphasis in this area attempts to discern the mechanisms behind ultrasound\u27s mechanical effects by selecting a model solid-liquid noncatalytic reacting system in which the chemical effects of ultrasound are negligible. A rigorous kinetic modeling approach is used which allows for reaction in both the liquid and solid phases. After an extensive analysis of the experimental data obtained from the system, it is concluded that the reaction occurs on the solid phase, and that the liquid phase reaction is negligible;Using several investigative techniques, the expected effects of ultrasound were observed, such as the degradative effects on particle size leading to increased surface area. More importantly, some novel findings of the effects of ultrasound on mass transfer parameters are reported. Results clearly show that ultrasound enhances the intrinsic mass transfer coefficient as well as the effective diffusivity of an organic reactant through the ionic lattice of the product layer. In addition, ultrasound also induces supersaturation of solid sodium sulfide in the solvent acetonitrile, increasing the solubility by a factor of 1.4 over the equilibrium saturation concentration. This enhanced solubility is attributed to cavitation which creates localized hot spots containing solvent in a supercritical state. The normally sparingly soluble solid is highly soluble in the solvent when it exists as a supercritical fluid. The increased solubility in these localized area has memory and is retained, even after the hot-spot dissipates into the bulk liquid. The use of ultrasound to induce supersaturation has significant applications in the areas of chemical kinetics when the reaction occurs in the liquid film or the bulk liquid phase

A toroidal fusion reactor design based on the reversed-field pinch

The toroidal reversed-field pinch (RFP) achieves gross equilibrium and stability with a combination of high shear and wall stabilization, rather than the imposition of tokamak-like q-constraints. Consequently, confinement is provided primarily by poloidal magnetic fields, poloidal betas as large as approximately 0.58 are obtainable, the high ohmic-heating (toroidal) current densities promise a sole means of heating a D-T plasma to ignition, and the plasma aspect ratio is not limited by stability/equilibrium constraints. A reactor-like plasma model has been developed in order to quantify and to assess the general features of a power system based upon RFP confinement. An ''operating point'' has been generated on the basis of this plasma model and a relatively detailed engineering energy balance. These results are used to generate a conceptual engineering model of the reversed-field pinch reactor (RFPR) which includes a general description of a 750 MWe power plant and the preliminary consideration of vacuum/fueling, first wall, blanket, magnet coils, iron core, and the energy storage/transfer system

Integration of Technology into Teaching by University College of Education Faculty

School of Teaching, Learning and Educational Science

One dimensional burn computations for RFPR

Studies of the RFPR have been done using a one-dimensional three fluid transport and stability code. Results have verified trends predicted by previous global studies. However, inclusion of profile effects, principally centerline ignition, has enabled the RFPR design to be optimized to obtain Q/sub p/'s as high as 20. Assuming classical parallel resistivity, global MHD stability can be maintained throughout the entire burn