A study to determine the number and types of decisions made by one head nurse in relation to the functional areas of nursing service administration.

Thesis (M.S.)--Boston Universit

Science-in-brief: Clinical highlights from BEVA Congress 2016

No abstract available

Comparative effects of prolonged rotation at 10 rpm on postural equilibrium in vestibular normal and vestibular defective human subjects

Comparative effects of prolonged rotation on postural equilibrium in vestibular normal and defective human subject

Motion Sickness Symptomatology of Labyrinthine Defective and Normal Subjects During Zero Gravity Maneuvers

Motion sickness symptomology of labyrinthine defective and normal human subjects during zero gravity maneuver

Bott periodicity for Z2Z_2 symmetric ground states of gapped free-fermion systems

Building on the symmetry classification of disordered fermions, we give a proof of the proposal by Kitaev, and others, for a "Bott clock" topological classification of free-fermion ground states of gapped systems with symmetries. Our approach differs from previous ones in that (i) we work in the standard framework of Hermitian quantum mechanics over the complex numbers, (ii) we directly formulate a mathematical model for ground states rather than spectrally flattened Hamiltonians, and (iii) we use homotopy-theoretic tools rather than K-theory. Key to our proof is a natural transformation that squares to the standard Bott map and relates the ground state of a d-dimensional system in symmetry class s to the ground state of a (d+1)-dimensional system in symmetry class s+1. This relation gives a new vantage point on topological insulators and superconductors.Comment: 55 pages; one figure added; corrections in Section 8; proofs in Section 6 expande

First-place finish : imparting fine surface finishes when micromilling

There are several key milling practices that help impart fine surface finishes in micromilling. They include running at ultrahigh spindle speeds, carefully monitoring chip load, employing climb milling when possible and using CAM software to develop toolpaths that enhance surface finishes. There are also promising developments that can improve surface finishes in areas as diverse as using atomized cutting fluids and milling ultrafine-grain workpieces