We calculate analytically the distributions of ”level curvatures” (LC) (the second derivatives of eigenvalues with respect to a magnetic flux) for a particle moving in a white-noise random potential. We find that the Zakrzewski-Delande conjecture [11] is still valid even if the lowest weak localization corrections are taken into account. The ratio of mean level curvature modulus to mean dissipa...

The Empirical Interpolation Method (EIM) and its generalized version (GEIM) can be used to approximate a physical system by combining data measured from the system itself and a reduced model representing the underlying physics. In presence of noise, the good properties of the approach are blurred in the sense that the approximation error no longer converges but even diverges. We propose to addr...

Historical Perspective The plight of individuals with developmental disabilities has been dependent on the customs and beliefs of the era and the culture or locale. In ancient Greece and Rome, infanticide was a common practice. In Sparta, for example, neonates were examined by a state council of inspectors. If they suspected that the child was defective, the infant was thrown from a cliff to it...

We demonstrate the utility of the periodic orbit description of chaotic motion by computing from a few periodic orbits highly accurate estimates of a large number of quantum resonances for the classically chaotic 3-disk scattering problem. The symmetry decompositions of the eigenspectra are the same for the classical and the quantum problem, and good agreement between the periodic orbit estimat...

This study investigates the effectiveness of the live interactive broadcast method of delivering engineering content into a standard university classroom. The Dynamics Concepts Inventory, a standardized quantitative assessment, has been administered as a pre-test and final assessment for the broadcast section of dynamics for four semesters. Student attitudes toward the non-standard learning env...

Learning objects are physical objects, specifically designed to promote learning through hands-on interaction. They are popular materials in early childhood education, at school and at home I present a historical overview of Learning Objects, starting with John Locke’s educational philosophy and design suggestions, continuing with the approaches of the educational pioneers Friedrich Froebel, Ma...

George Perec’s novel, Life A Users Manual (1978) focuses particular attention upon domestic artefacts that shape and influence our experience of the interior. Chapter by chapter, room by room, the novel describes a Parisian apartment building, whose façade has been peeled away to expose a cross section of the interior, leaving rooms and residents (both past and present) simultaneously visible. ...