4,826 research outputs found

    Newer Teaching Methods and the Library Program in the Junior High School

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    There are so many changes in the schools, and they are coming so fast these days that one is likely to become confused if he tries to keep up and feels condemned if he does not. Any self-respecting librarian will feel that he must know what is going on and try to adjust procedures accordingly, because that is the nature of self-respecting librarians. If one knows what the changes are and why they are happening, he is not likely to feel so confused or condemned, and he is not so likely to be taken in by temporary expedient shifts that have little meaning. His choices will be more selective and his decisions wiser in proportion to his understanding of what he is trying to do and why he is trying to do it. One will derive more satisfaction from his work because he will feel he is functioning adequately in his role. So also will all the other people whose activities are to influence or to be influenced by a properly functioning library. Thus it seems that one of the best things to do is review and assess the pressures that are producing changes in education, examine the changes, and interpret the effects the changes bring. Then we can review and reorganize our basic understandings so that we can correct our directions where they need correction and adapt our procedures to them.published or submitted for publicatio

    Low density plume impingement study Quarterly progress report, 22 May - 25 Aug. 1967

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    Engineering methods and computer programs for predicting convective heat flux and pressure in flow regimes of low density plume impingemen

    Nonlinear theory for coalescing characteristics in multiphase Whitham modulation theory

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    The multiphase Whitham modulation equations with NN phases have 2N2N characteristics which may be of hyperbolic or elliptic type. In this paper a nonlinear theory is developed for coalescence, where two characteristics change from hyperbolic to elliptic via collision. Firstly, a linear theory develops the structure of colliding characteristics involving the topological sign of characteristics and multiple Jordan chains, and secondly a nonlinear modulation theory is developed for transitions. The nonlinear theory shows that coalescing characteristics morph the Whitham equations into an asymptotically valid geometric form of the two-way Boussinesq equation. That is, coalescing characteristics generate dispersion, nonlinearity and complex wave fields. For illustration, the theory is applied to coalescing characteristics associated with the modulation of two-phase travelling-wave solutions of coupled nonlinear Schr\"odinger equations, highlighting how collisions can be identified and the relevant dispersive dynamics constructed.Comment: 40 pages, 2 figure

    Simulation of Status Epilepticus is Effective Teaching for Junior Neurology Residents

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    Purpose: Status Epilepticus (SE) represents a potentially fatal neurologic emergency. At Jefferson, acute management of SE falls to the inpatient neurologist, requiring early competency. Methods: During a 2 week educational “bootcamp”, 9 PGY2 residents participated in a 2 hour simulation of acute SE with two clinical scenarios. Scenarios included a patient with SE requiring adequate benzodiazepine dosing and another with seizures requiring IV anticonvulsant therapy. Prior to and following the simulation, residents took a survey to gauge their knowledge and confidence in managing SE. Results and Conclusions: There was an increase in the number of residents expressing confidence in their ability to order the appropriate tests to evaluate SE, initiate second-line therapy, know adverse effects of anticonvulsants, and overall independently manage SE (all p\u3c0.05). There was a trend towards significance in the proportion of residents expressing confidence in their ability to initiate SE management (p=0.08). The number of residents expressing confidence in their ability to recognize status increased from 3 to 6, but was not statistically significant (p=0.35). On the second survey 8 of 8 total respondents were overall satisfied with the activity. This study demonstrates simulated SE management may increase subjective confidence and knowledge of neurology trainees. The number of statistically significant findings suggests that the findings are robust. Neurologic SE represents an emergency that may need to be managed by non-neurologists in hospital settings without inpatient neurology coverage. This simulation could be adapted to medical trainees in whom competence in SE management is of high yield

    The Modulation of Multiple Phases Leading to the Modified KdV Equation

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    This paper seeks to derive the modified KdV (mKdV) equation using a novel approach from systems generated from abstract Lagrangians that possess a two-parameter symmetry group. The method to do uses a modified modulation approach, which results in the mKdV emerging with coefficients related to the conservation laws possessed by the original Lagrangian system. Alongside this, an adaptation of the method of Kuramoto is developed, providing a simpler mechanism to determine the coefficients of the nonlinear term. The theory is illustrated using two examples of physical interest, one in stratified hydrodynamics and another using a coupled Nonlinear Schr\"odinger model, to illustrate how the criterion for the mKdV equation to emerge may be assessed and its coefficients generated.Comment: 35 pages, 5 figure
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