4,826 research outputs found
Newer Teaching Methods and the Library Program in the Junior High School
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
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
The multiphase Whitham modulation equations with phases have
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
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
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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