Frazzle : March and Two - Step

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The special services available to the exceptional child in the Commonwealth of Massachusetts

Thesis (Ed.M.)--Boston Universit

Cu codoping control over magnetic precipitate formation in ZnCoO nanowires

Using electrodeposition, we have grown nanowires of ZnCoO with Cu codoping concentrations varying from 4-10 at.%, controlled only by the deposition potential. We demonstrate control over magnetic Co oxide nano-precipitate formation in the nanowires via the Cu concentration. The different magnetic behavior of the Co oxide nano-precipitates indicates the potential of ZnCoO for magnetic sensor applications.Comment: 5 pages, 5 figure

On the distribution of rational functions along a curve over Fp and residue races

AbstractLet p be a prime number, let F¯p be the algebraic closure of Fp=Z/pZ, let C be an absolutely irreducible curve in Ar(F¯p) and h=(h1,…,hs) a rational map defined on the curve C. We investigate the distribution in the s-dimensional unit cube (R/Z)s of the images through h of the Fp-points of C, after a suitable embedding

Synchronization of chaotic networks with time-delayed couplings: An analytic study

Networks of nonlinear units with time-delayed couplings can synchronize to a common chaotic trajectory. Although the delay time may be very large, the units can synchronize completely without time shift. For networks of coupled Bernoulli maps, analytic results are derived for the stability of the chaotic synchronization manifold. For a single delay time, chaos synchronization is related to the spectral gap of the coupling matrix. For networks with multiple delay times, analytic results are obtained from the theory of polynomials. Finally, the analytic results are compared with networks of iterated tent maps and Lang-Kobayashi equations which imitate the behaviour of networks of semiconductor lasers

College Opportunity at Risk: An Assessment of the States — State Risk Assessments

A public compact for postsecondary education in the 21st century must have at its core a commitment to educational opportunity. The demands of the knowledge economy and modern democracy require that most Americans have the opportunity to develop critical thinking, problem solving, communication, and technological knowledge and skills

Recent Decisions

Comments on recent decisions by Robert R. Waterson, Hugh E. Wall, Francis W. Matthys, Granville P. Ziegler, Thomas H. Nelson, Stanley A. Rosenstein, and John M. Doyle

An Innovative Use of Cortoss Bone Cement to Stabilize a Nonunion after Interbody Fusion

Abstract A 65-year-old male originally had surgery for spondylolisthesis at L5-S1 in 2008 and then went on to have an L4-5 transforaminal lumbar interbody fusion (TLIF) with pedicle screw fixation from L4 to S1 and interbody graft in 2010. Despite having two surgical procedures, he continued with intractable back pain and was told he had a failed lumbar fusion. When he was evaluated with a computerized tomography (CT) scan from April 2015, it demonstrated an erosive nonunion of the L4-5 interbody fusion without incorporation of the polyetheretherketone (PEEK) cage. In an attempt to perform a minimally invasive stabilization of the L4-5 nonunion, he underwent a percutaneous lateral foraminal approach with an injection of Cortoss® cement (Stryker®, Malvern, PA) into the L4-5 interspace and around the graft. The objective was to stabilize the nonunion, resulting in intermediate relief of pain