110,535 research outputs found
Politics, Inflation, and the Mundell-Tobin Effect
This paper addresses the possibility of a correlation between inflation and investment for countries with inflation below 20%. The existing literature typically finds no correlation below this level of inflation. By instrumenting with an extensive set of political stability and regime variables I have shown that within a lower range of inflation rates, between 5% and 9%, this correlation is positive, highly significant, and shows no signs of reverse causality.Politics, Inflation, Investment, Mundell, Tobin
Geometry definition and grid generation for a complete fighter aircraft
Recent advances in computing power and numerical solution procedures have enabled computational fluid dynamicists to attempt increasingly difficult problems. In particular, efforts are focusing on computations of complex three-dimensional flow fields about realistic aerodynamic bodies. To perform such computations, a very accurate and detailed description of the surface geometry must be provided, and a three-dimensional grid must be generated in the space around the body. The geometry must be supplied in a format compatible with the grid generation requirements, and must be verified to be free of inconsistencies. This paper presents a procedure for performing the geometry definition of a fighter aircraft that makes use of a commercial computer-aided design/computer-aided manufacturing system. Furthermore, visual representations of the geometry are generated using a computer graphics system for verification of the body definition. Finally, the three-dimensional grids for fighter-like aircraft are generated by means of an efficient new parabolic grid generation method. This method exhibits good control of grid quality
An Unusual Moving Boundary Condition Arising in Anomalous Diffusion Problems
In the context of analyzing a new model for nonlinear diffusion in polymers, an
unusual condition appears at the moving interface between the glassy and rubbery phases of the
polymer. This condition, which arises from the inclusion of a viscoelastic memory term in our
equations, has received very little attention in the mathematical literature. Due to the unusual form
of the moving-boundary condition, further study is needed as to the existence and uniqueness of
solutions satisfying such a condition. The moving boundary condition which results is not solvable
by similarity solutions, but can be solved by integral equation techniques. A solution process is
outlined to illustrate the unusual nature of the condition; the profiles which result are characteristic
of a dissolving polymer
A reference book on rocks and minerals of New England for gifted students in the intermediate grades.
Thesis (Ed.M.)--Boston Universit
Mechanism for the failure of the Edwards hypothesis in the SK spin glass
The dynamics of the SK model at T=0 starting from random spin configurations
is considered. The metastable states reached by such dynamics are atypical of
such states as a whole, in that the probability density of site energies,
, is small at . Since virtually all metastable states
have a much larger , this behavior demonstrates a qualitative failure of
the Edwards hypothesis. We look for its origins by modelling the changes in the
site energies during the dynamics as a Markov process. We show how the small
arises from features of the Markov process that have a clear physical
basis in the spin-glass, and hence explain the failure of the Edwards
hypothesis.Comment: 5 pages, new title, modified text, additional reference
Gaston Memorial Hospital: Driving Quality Improvement With Data, Guidelines, and Real-Time Feedback
Describes efforts to reduce variance in provider practice patterns through data analysis and benchmarking of process-of-care measures. Discusses strategies such as sharing data, feedback, and best practices in ways physicians can utilize them immediately
Culturally Responsive Teaching For Significant Relationships
This article expands discussions of culturally responsive teaching to include the framework of what it is, why it matters and how it can be accomplished in the classroom. The four principles of interaction, accommodation, ownership, and opportunity outline culturally responsive strategies teachers use to create significant relationships with all students in the classroom
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