Permeability of a one-dimensional potential barrier

Permeability of one dimensional potential barrie

Spectroscopic reassignment and ground state dissociation energy of molecular iodine

Spectroscopic reassignment and ground state dissociation energy of molecular iodin

A Z_3-graded generalization of supermatrices

We introduce Z_3-graded objects which are the generalization of the more familiar Z_2-graded objects that are used in supersymmetric theories and in many models of non-commutative geometry. First, we introduce the Z_3-graded Grassmann algebra, and we use this object to construct the Z_3-matrices, which are the generalizations of the supermatrices. Then, we generalize the concepts of supertrace and superdeterminant

The use of figures in the evaluation or rural development policies: a quest for knowledge Counting, to tell and understand

Using figures seems to create rigour, objectivity, knowledge and it facilitates comparisons. Consequently, an evalution without figures is hardly conceivable. Nonetheless, objectivity and precision can be just an impression given the fact that figures are constructions built on a modeled description of reality. The simplification of reality operated through a figure can hide subtle elements regarding the way public policies work. If figures can legitimately be used in evaluation, every kinds of figures and evaluations are not equivalent. Therefore, our main research question is what place for figures in evalution? This contribution relates to research about policy evaluation, seen as a mean to produce knowledge useful for the understanding of policies and their implementation. Based on the analysis of the evaluations of rural development policies conducted by the French ministry of agriculture our goal is to increase practical and theoretical knowledge of those policies through well-designed evalutions.Data, evaluation, methods, rural development policies, Agricultural and Food Policy, R58, Q18, H50,

A molecular superfluid: non-classical rotations in doped para-hydrogen clusters

Clusters of para-hydrogen (pH2) have been predicted to exhibit superfluid behavior, but direct observation of this phenomenon has been elusive. Combining experiments and theoretical simulations, we have determined the size evolution of the superfluid response of pH2 clusters doped with carbon dioxide (CO2). Reduction of the effective inertia is observed when the dopant is surrounded by the pH2 solvent. This marks the onset of molecular superfluidity in pH2. The fractional occupation of solvation rings around CO2 correlates with enhanced superfluid response for certain cluster sizes

Reinventing Alternative Education: An Assessment of Current State Policy and How to Improve It

This report identifies seven model policy elements that states should incorporate in order to develop and improve alternative pathways for struggling students and former dropouts. Jobs for the Future performed this comprehensive 50-state policy scan to assess the extent to which state policy aligns with these model elements

Dissociation energy and long-range potential of diatomic molecules from vibrational spacings - The halogens

Dissociation energy and long-range potential of diatomic molecules from vibrational spacings, halogen